我校教师 EI 工程索引收录（2012.01.01—2012.12.25）（以第一著者音

Transcription

我校教师 EI 工程索引收录
（2012.01.01—2012.12.25）
（以第一著者音序排序）
总共 742 条，第一部分：1-400 条。
1.
Accession number: 20125015771891
Title: A new optimal space-vector modulation technique for three-phase voltage source inverters
Authors: An, Shao-Liang1 ; Wang, Jian-Yuan1 ; Sun, Xiang-Dong1 ; Zhong, Yan-Ru1
Author affiliation: 1 Department of Electrical Engineering, Xi'an University of Technology,
Xi'an, China
Corresponding author: An, S.-L. ([email protected])
Source title: Asia-Pacific Power and Energy Engineering Conference, APPEEC
Abbreviated source title: Asia-Pacific Pow. Energy Eng. Conf., APPEEC
Monograph title: APPEEC 2012 - 2012 Asia-Pacific Power and Energy Engineering Conference,
Proceedings
Issue date: 2012
Publication year: 2012
Article number: 6306870
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
Document type: Conference article (CA)
Conference name: 2012 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2012
Conference date: March 27, 2012 - March 29, 2012
Conference location: Shanghai, China
Conference code: 94121
Sponsor: IEEE Power and Energy Society; Shanghai Jiao Tong University; Wuhan University;
Tongji University; Tianjin University
Publisher: IEEE Computer Society, 2001 L Street N.W., Suite 700, Washington, DC 20036-4928,
United States
Abstract: In this paper, a new optimal space-vector pulse- width modulation (SVPWM)
technique is presented for three-phase voltage source inverters. 6 sectors are redivided into 12
ones based on SVPWM, and combining with local over- modulation method, the discontinuous
SVPWM strategies called as DSVPWMx including DSVPWMP, DSVPWMN, DSVPWMPN1
and DSVPWMPN3 are proposed. The principle of the new DSVPWMx is developed, and
essential relations among the different DSVPWMx strategies are discussed. The simulation and
experimental results verify that the DSVPWMx strategies are right and feasible. © 2012 IEEE.
Number of references: 10
Main heading: Vector spaces
Controlled terms: Modulation - Optimization - Pulse width modulation - Voltage
control
Uncontrolled terms: discontinuous SVPWM - inverter - Modulation methods Overmodulation - Space Vector Modulation - Three-phase voltage source inverters
Classification code: 716 Telecommunication; Radar, Radio and Television - 731.3 Specific
Variables Control - 921 Mathematics - 921.5 Optimization Techniques
DOI: 10.1109/APPEEC.2012.6306870
Database: Compendex
Compilation and indexing terms, © 2012 Elsevier Inc.
2.
Title: Reduction of switching loss for a transformer-based three-phase grid-connected inverter
Authors: An, Shaoliang1 ; Sun, Xiangdong1 ; Zhong, Yanru1 ; Ren, Biying1 ; Yang, Hui1
Author affiliation: 1 Department of Electrical Engineering, Xi'An University of Technology,
Xi'an, China
Corresponding author: An, S. ([email protected])
Source title: Conference Proceedings - 2012 IEEE 7th International Power Electronics and
Motion Control Conference - ECCE Asia, IPEMC 2012
Abbreviated source title: Conf. Proc. - IEEE Int. Power Electron. Motion Control Conf. - ECCE
Asia, IPEMC
Volume: 3
Monograph title: Conference Proceedings - 2012 IEEE 7th International Power Electronics and
Issue date: 2012
Pages: 1752-1755
Language: English
ISBN-13: 9781457720864
Conference name: 2012 IEEE 7th International Power Electronics and Motion Control
Conference - ECCE Asia, IPEMC 2012
Conference date: June 2, 2012 - June 5, 2012
Conference location: Harbin, China
Sponsor: China Electrotechnical Society (CES); IEEE Power Electronics Society (IEEE PELS);
National Natural Science Foundation of China (NSFC)
United States
Abstract: A gain-based space vector modulation (G-SVM) method is proposed to reduce
switching losses for a transformer-based three-phase grid-connected voltage source inverter. The
total power losses are analyzed and divided into two parts. Copper loss and iron loss are named as
the uncontrollable losses. Switching losses of IGBTs and Diodes are defined as the controllable
losses. The switching loss is decreased by adding a gain component to three-phase reference
voltages under space vector pulse width modulation scheme. The method is simple and easily
implemented. Simulation and experimental results confirm the feasibility and validity of the
method. © 2012 IEEE.
Main heading: Switching
Controlled terms: Electric inverters - Modulation - Motion control - Power
electronics - Pulse width modulation - Vector spaces
Uncontrolled terms: Controllable loss - Copper loss - gain - Grid connected inverters
- Grid-connected - Iron loss - Power-losses - Reference voltages - Space Vector
Modulation - Space vector pulse width modulation
- Switching loss - Total power Voltage source inverter
Classification code: 704.2 Electric Equipment - 715.2 Industrial Electronic Equipment 716 Telecommunication; Radar, Radio and Television - 721.1 Computer Theory, Includes
Formal Logic, Automata Theory, Switching Theory, Programming Theory - 731.3 Specific
Variables Control - 921 Mathematics
DOI: 10.1109/IPEMC.2012.6259101
Database: Compendex
3.
Title: A new generalized implementation method of discontinuous PWM
Authors: An, Shaoliang1 ; Sun, Xiangdong1 ; Chen, Yingjuan1 ; Zhong, Yanru1 ; Ren, Biying1
Author affiliation: 1 School of Automation and Information Engineering, Xi'an University of
Technology, Xi'an 710048, Shaanxi Province, China
Corresponding author: An, S. ([email protected])
Source title: Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of
Electrical Engineering
Abbreviated source title: Zhongguo Dianji Gongcheng Xuebao
Volume: 32
Issue: 24
Issue date: August 25, 2012
Pages: 59-66
Language: Chinese
ISSN: 02588013
CODEN: ZDGXER
Document type: Journal article (JA)
Publisher: Chinese Society of Electrical Engineering, Qinghe, Beijing, 100085, China
Abstract: In this paper, a generalized method to implement discontinuous pulsewidth modulation
(DPWMx) strategies such as DPWMMAX, DPWMMIN, DPWM0, DPWM1, DPWM2 and
DPWM3 was proposed for three-phase voltage source inverters. Six sectors were redivided into
twelve ones. Analyzing and summing up all kinds of conventional DPWMx strategies,it was true
that the reference voltage of each III-type DPWMx strategy could be obtained by corresponding
I-type DPWMx strategy with linearity transformation. Essential relations between I-type and
III-type DPWMx strategies were discussed, which provided a new viewpoint to analyze DPWM
strategies. The feasibility of the new generalized DPWMx strategies using linearity transformation
and volt-second balance is proved by theoretical analysis. The effectiveness and correctness are
verified by simulation and experimental results. © 2012 Chin. Soc. for Elec. Eng.
Main heading: Linear transformations
Controlled terms: Counting circuits - Modulation - Pulse width modulation
Uncontrolled terms: Discontinuous pulse width modulation (DPWM) - Discontinuous PWM
- Generalized method - Inverter - Linearity transformation - Overmodulation Reference voltages - Three-phase voltage source inverters
Classification code: 713.4 Pulse Circuits - 716 Telecommunication; Radar, Radio and
Television - 921.3 Mathematical Transformations
Database: Compendex
4.
Title: Research on a new and generalized method of discontinuous PWM strategies to minimize
the switching loss
Authors: An, Shaoliang1 ; Sun, Xiangdong1 ; Zhong, Yanru1 ; Matsui, Mikihiko2
Xi'an, China
2 Department of Electrical Engineering, Tokyo Polytechnic University, Atsugi, Japan
Corresponding author: An, S.
Source title: 2012 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2012
Abbreviated source title: IEEE Innov. Smart Grid Technol. - Asia, ISGT Asia
Monograph title: 2012 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2012
Issue date: 2012
Language: English
ISBN-13: 9781467312219
Conference name: 2012 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia
Conference date: May 21, 2012 - May 24, 2012
Conference location: Tianjin, China
United States
Abstract: A novel generalized method of discontinuous pulse width modulation (DPWM)
strategies such as DPWM0, DPWM1, DPWM2, DPWM3, DPWMMAX and DPWMMIN usually
called as DPWMx is proposed in this paper to minimize the switching loss for three-phase voltage
source inverters. Six sectors are re-carved up into twelve ones. Analyzing and summarizing all
kinds of conventional DPWMx strategies, come to a conclusion that the reference voltage of each
III-type DPWMx strategy can be obtained by I-type DPWMx strategy by means of linear
transformation. Substantial relations between I-type and III-type DPWMx strategies are debated.
The feasibility of analyzing and implementing of the presented generalized DPWMx strategies is
proved by theoretical analysis and simulation results. © 2012 IEEE.
Main heading: Pulse width modulation
Controlled terms: Electric inverters - Linear transformations - Modulation - Smart
power grids
Uncontrolled terms: Analysis and simulation - Discontinuous PWM - Generalized
method - Reference voltages - Switching loss - Three-phase voltage source inverters
Classification code: 704.2 Electric Equipment - 706.1 Electric Power Systems - 716
Telecommunication; Radar, Radio and Television - 921.3 Mathematical Transformations
DOI: 10.1109/ISGT-Asia.2012.6303092
Database: Compendex
5.
Title: Optimal design and analysis of cusp magnetic field in mono-crystal furnace of low power
consumption
Authors: An, Tao1 ; Gao, Yong1 ; Zhang, Chuang1
Author affiliation: 1 Xi'an University of Technology, Xi'an 710048, China
Corresponding author: An, T. ([email protected])
Source title: Rengong Jingti Xuebao/Journal of Synthetic Crystals
Abbreviated source title: Rengong Jingti Xuebao
Volume: 41
Issue: 4
Issue date: August 2012
Pages: 1113-1118
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Publisher: Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China
Abstract: This paper proposes a new cusp magnetic field structure of low power consumption to
solve the high power consumption of existing cusp magnetic field. The magnetic field strength
and distribution in 8 inch mono-crystal furnace were simulated and optimized by using the finite
element method, at the same time considering the factors of influence, such as the coil turns, coil
current, coil distance. The results show that: when the radial magnetic field strength is 492 GS in
the crucible wall, comparing the 2400 turns new magnetic field with the 96 turns existing
magnetic field on the premise the structure is same, such as diameter 820 mm, coil distance 200
mm, etc. The total power from 38.9 kW reduce to 9.8 kW (by 74.7%). The study provides a new
design idea and method to make the cusp magnetic field could be widely applied.
Main heading: Magnetic fields
Controlled terms: Finite element method - Furnaces - Magnetic flux
Uncontrolled terms: Coil current - Crucible wall - Cusp magnetic field - High power
consumption - Low-power consumption - Magnetic field strengths - New design Optimal design - Radial magnetic field - Total power
Classification code: 532 Metallurgical Furnaces - 701.2 Magnetism: Basic Concepts and
Phenomena - 921.6 Numerical Methods
Database: Compendex
6.
Title: Optimal planning model of the regional water saving irrigation and its application
Authors: Bai, Dan1 ; Liang, Wei1
Author affiliation: 1 Institute of Water Resources and Hydro-electric Engineering, Xi'an
University of Technology, Xi'an, 710000, China
Corresponding author: Bai, D.
Source title: 2012 International Symposium on Geomatics for Integrated Water Resources
Management, GIWRM 2012
Abbreviated source title: Int. Symp. Geomatics Integr. Water Resour. Manage., GIWRM
Monograph title: 2012 International Symposium on Geomatics for Integrated Water Resources
Issue date: 2012
Language: English
ISBN-13: 9781467312820
Conference name: 2012 International Symposium on Geomatics for Integrated Water Resources
Conference date: October 19, 2012 - October 21, 2012
Conference location: Lanzhou, Gansu, China
Sponsor: Lanzhou Jiaotong University (LJU); IEEE Geoscience and Remote Sensing Society
(GRSS); International Cartographic Association (ICA); International Association of Hydrological
Sciences (IAHS)
United States
Abstract: To meet the demand of crops irrigation water, the optimal planning model of the field
water saving irrigation, in which minimum incremental annual cost of field water saving irrigation
engineering is the objective function, has been established based on types of water resource,
agricultural utilizable water yield, crop planting structure, status of water saving irrigation and
feasibility of each water saving irrigation technology. To use the model, the Xinjiang Hetian
region optimal plan of water saving irrigation that includes optimal development scale of water
saving irrigation for each crop in the region has been put forward in 2020. The model provides a
scientific basis for reasonable planning of water saving irrigation and optimal allocation of water
and land resources in region. © 2012 IEEE.
Main heading: Water resources
Controlled terms: Cost engineering - Crops - Irrigation - Mathematical models Optimization - Surveying - Water conservation - Water supply
Uncontrolled terms: Annual cost - Irrigation waters - Land resources - Objective
functions - Optimal allocation - Optimal development - Optimal plan - Optimal
planning - Water yield - Water-saving irrigation - Xinjiang
Classification code: 921 Mathematics - 911 Cost and Value Engineering; Industrial
Economics - 821.4 Agricultural Products - 921.5 Optimization Techniques - 821.3
Agricultural Methods - 444 Water Resources - 405.3 Surveying - 446.1 Water Supply
Systems
DOI: 10.1109/GIWRM.2012.6349622
Database: Compendex
7.
Title: Study on the water environmental capacity and the sewage control of the Sushui River
Authors: Bai, Ji-Zhong1, 2 ; Yang, Jian-Ming1, 2 ; Feng, Min-Quan1, 2
Author affiliation: 1 Key Laboratory of Northwest Water Resources and Environmental
Ecology of Education Ministry, Xi'an University of Technology, Xi'an, China
2 Shanxi Water Conservancy Technical College, Yuncheng, China
Corresponding author: Bai, J.-Z. ([email protected])
Source title: Advanced Materials Research
Abbreviated source title: Adv. Mater. Res.
Volume: 433-440
Monograph title: Materials Science and Information Technology, MSIT2011
Issue date: 2012
Pages: 995-1001
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Conference name: 2011 International Conference on Material Science and Information
Technology, MSIT2011
Conference date: September 16, 2011 - September 18, 2011
Conference location: Singapore, Singapore
Sponsor: Singapore Institute of Electronics
Publisher: Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
Abstract: In order to know the environmental capacity, improve the continual deterioration of
the water quality in Sushui River, and promote the harmonious development of economy and
aquatic environment, we did the following research. Based on the 1-D steady-state water quality
model, the outfalls are generalized, and then we derived the formula for calculating water
environmental capacity of each reach. According to the information of water quality, hydrology
data and the discharge distribution of the river, we chose COD, ammonia nitrogen and volatile
phenol as the main control factors, and some formulas were used to calculate the water
environmental capacity of COD, ammonia nitrogen and volatile phenol. From which we got that
annual water environmental capacity of COD, ammonia nitrogen and volatile phenol on the
studied reach respectively arrive at 1257.897∼1420.928t, 17.873∼26.025t and 1.750∼2.871t
under different design terms. It is serious pollution in the Sushui River, combined with the status
quo emissions, we found that under different design terms, the annual quantity of pollutants
reduction of COD, ammonia nitrogen and volatile phenol arrive at 30.36×106t, 3.257×106t and
0.1745×106t. © (2012) Trans Tech Publications, Switzerland.
Main heading: River pollution
Controlled terms: Ammonia - Deterioration - Discharge (fluid mechanics) Information technology - Nitrogen - Phenols - Pollution control - Quality control
- River control - Sewage - Water quality
Uncontrolled terms: Ammonia nitrogen - Aquatic environments - Environmental
capacity - Harmonious development - Hydrology data - Main control factor - Water
quality models
Classification code: 913.3 Quality Assurance and Control - 903 Information Science 804 Chemical Products Generally - 951 Materials Science - 454.2 Environmental Impact
and Protection - 441 Dams and Reservoirs; Hydro Development - 407 Maritime and Port
Structures; Rivers and Other Waterways - 453 Water Pollution
DOI: 10.4028/www.scientific.net/AMR.433-440.995
Database: Compendex
8.
Title: Thermal stress analysis of sapphire crystal growth crucible
Authors: Bai, Liang-Liang1 ; Liu, Yun-Xia1 ; Yang, Jun-Liang1 ; Zhao, Yi-Lin1
Corresponding author: Bai, L.-L. ([email protected])
Volume: 41
Issue: 5
Issue date: October 2012
Pages: 1458-1462
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: To solve the problem that the short service life of crucible caused by the concentrated
thermal stress. Using Ansys FEM analysis to do transient analysis of the heat transfer of crucible
when the crystal is melting. Then, coupling the thermal analysis and structural analysis under
different conditions, and working out the distribution of thermal stress of the crucible when it has
been totally melting. The analysis shows that some ways could reduce heat stress, for example:
maximum thermal stress exists the joint of crucible and the tray; slowing the heating rate,
decreasing the temperature gradient, increase the diameter of the hollow part of a die-pin, and
change the material of the tray and die-pin, etc.
Main heading: Thermal stress
Controlled terms: Crucibles - Crystal growth - Finite element method - Melting Stress analysis - Temperature distribution - Thermoanalysis
Uncontrolled terms: FEM analysis - Finite Element - Heat stress - Hollow parts Sapphire crystal
Classification code: 933.1.2 Crystal Growth - 921.6 Numerical Methods - 801 Chemistry
- 951 Materials Science - 641.1 Thermodynamics - 531.1 Metallurgy - 421 Strength
of Building Materials; Mechanical Properties - 532 Metallurgical Furnaces
Database: Compendex
9.
Title: Short-term peaking operation of cascade hydropower stations in power market based on
feasible search space optimization
Authors: Bai, Tao1 ; Chang, Jianxia1 ; Huang, Qiang1 ; Wu, Chengguo1
Author affiliation: 1 State Key Lab. Cultivation Base of Northwest Arid Ecology and
Hydraulic Engineering, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Bai, T. ([email protected])
Source title: Shuili Fadian Xuebao/Journal of Hydroelectric Engineering
Abbreviated source title: Shuili Fadian Xuebao
Volume: 31
Issue: 5
Pages: 90-95+70
Language: Chinese
ISSN: 10031243
Publisher: Tsinghua University Press, Beijing, 100084, China
Abstract: This paper considers the effects of marginal price of power market and time delay of
short-term reservoir operation on the conditions of comprehensive water, power peaking and other
constraints, and develops a cascade power benefit maximum model. This model solves complex
optimal dispatching problems of multi-objectives, high-dimensionality and strong nonlinearity,
and uses constraints handling techniques to optimize feasible search space and improve
optimization algorithm. Application to the cascade hydropower stations in the upper Yellow River
for power benefit maximization shows a increase of 2.63% in the daily power benefit and a saving
of 2380 ms in CPU cost, verifying rationality and effectiveness of the improved algorithm. ©
right.
Main heading: Commerce
Controlled terms: Algorithms - Fluid mechanics - Optimization - Reservoirs (water)
- Shore protection
Uncontrolled terms: Cascade hydropower stations - Constraints handling - Hydraulic
engineering - Peaking operation - Power markets - Search spaces
Classification code: 931.1 Mechanics - 921.5 Optimization Techniques - 921
Mathematics - 911.2 Industrial Economics - 723 Computer Software, Data Handling and
Applications - 441.2 Reservoirs - 407.1 Maritime Structures
Database: Compendex
10.
Title: Study on short-term peak load of Xiaolangdi and Xixiayuan cascade hydropower stations
Authors: Bai, Tao1 ; Chang, Jianxia1 ; Fang, Jianxi2 ; Huang, Qiang1 ; Zhu, Xuping2 ; Liao,
Xinyu2
Author affiliation: 1 State Key Lab Cultivation Base of Northwest Arid Ecology and Hydraulic
Engineering, Xi-an University of Technology, Xi-an 710048, China
2 Hydropower Plant of Xiaolangdi Water Project Construction Administration, Ministry of
Water Resources, Henan Jiyuan 454681, China
Corresponding author: Bai, T. ([email protected])
Volume: 31
Issue: 4
Pages: 83-88
Language: Chinese
ISSN: 10031243
Abstract: This papers proposes a concept of power grid peaking involved with Xixiayuan
hydropower station that is a daily regulation reservoir with anti-regulation characteristics. The
feasibility of such peaking was proved in both theoretical and actual operation aspects, through
developing a short-term peaking model for the Xiaolangdi and Xixiayuan cascade plants. Feasible
schemes of short-term peaking for these stations were formulated using different impact factors,
and they were solved with an accelerating genetic algorithm. The calculations show that the
efficiency of water use and power generation can be greatly increased by this peaking technique.
Thus, the win-win between power grid dispatching and water dispatching comes true.
Main heading: Ice control
Controlled terms: Electric power distribution - Genetic algorithms - Reservoirs (water)
- Water supply
Uncontrolled terms: Actual operation - Anti-regulation - Cascade hydropower stations
- Hydropower stations - Impact factor - Peak load - Peaking operation - Power
grid dispatching - Power grids - Water use - Win-win
Classification code: 441.2 Reservoirs - 443.3 Precipitation - 446.1 Water Supply Systems
- 706.1.2 Electric Power Distribution - 723 Computer Software, Data Handling and
Applications - 921 Mathematics
Database: Compendex
11.
Title: Analysis on load distribution of needle bearing considering misalignment
Authors: Bai, Xiaobo1 ; Ji, Xiaoming1 ; Guo, Lei1
Author affiliation: 1 Xi'an University of Technology, China
Corresponding author: Bai, X. ([email protected])
Source title: Applied Mechanics and Materials
Abbreviated source title: Appl. Mech. Mater.
Volume: 215-216
Monograph title: Advances in Design Technology
Issue date: 2012
Pages: 202-206
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037855010
Conference name: 2nd International Conference on Advanced Design and Manufacturing
Engineering, ADME 2012
Conference date: August 16, 2012 - August 18, 2012
Conference location: Taiyuan, China
Abstract: A quasi-static analytical model for needle bearing was established base on the rolling
contact theory and the force analysis of needle bearing,and the model was caculated by computer
program.Conclusions are drawn as follows by analysis of needle bearing load distribution in
different misalignment,different load,different clearance,different speed,different crown drop of
needle:work of bearing would be influenced if misalignment so big,the influence of misalignment
must be considered when the engineer determine the clearance of beearing, it's rotational speed
has small influence on the load distribution of bearing,reasonable choise of crowning of needle
could be enhanced the lifetime of needle bearings. © (2012) Trans Tech Publications, Switzerland.
Main heading: Needles
Controlled terms: Alignment - Design
Uncontrolled terms: Bearing loads - Crowning - Different speed - Force analysis Load distributions - Misalignment - Quasi-static - Rolling contact theory Rotational speed
Classification code: 408 Structural Design - 601.1 Mechanical Devices - 819.6 Textile
Mills, Machinery and Equipment
DOI: 10.4028/www.scientific.net/AMM.215-216.202
Database: Compendex
12.
Title: Influence of composite surfactant on print gloss of bronze powder
Authors: Bai, Yan-Xia1, 3 ; Hui, Tao2 ; Zhao, Mai-Qun3 ; Jin, Li3
Author affiliation: 1 School of Chemistry and Chemical Engineering, Yulin University, Yulin
719000, China
2 Instrument Workshop, Shaanxi Shenmu Chemical Industry Co. Ltd., Shenmu 719319, China
3 School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
Corresponding author: Bai, Y.-X. ([email protected])
Source title: Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Abbreviated source title: Zhongguo Youse Jinshu Xuebao
Volume: 21
Issue: 11
Issue date: November 2011
Pages: 2875-2879
Language: Chinese
ISSN: 10040609
CODEN: ZYJXFK
Publisher: Central South University of Technology, Hunan, Changsha, 410083, China
Abstract: Five kinds of composite reagents were used to modify the bronze powder by
physiochemical method at different proportions and quantities. By testing the print gloss, wetting
property and morphology of the bronze powder, the influence mechanism of the different
proportions and quantities of the composite reagents on print gloss of bronze powder was analyzed.
The results show that the print gloss of the bronze powder modified by 0.2% composite reagent
composed of stearic acid and linear polymer SA at proportion of 1:0.1 has the largest value,
reaching 99.67. The gravure print gloss of the gold ink is affected by the wetting property and
floating of the bronze powder in the acrylic resin, and the composite reagent can improve the
gravure print gloss of the gold ink through reducing the wetting property and raising the floating
of bronze powder in the acrylic resin.
Main heading: Graphic methods
Controlled terms: Bronze - Gold - Resins - Stearic acid - Surface active agents Wetting
Uncontrolled terms: Acrylic resins - Bronze powders - Influence mechanism - Linear
polymers - Modification - Physiochemical methods - Print gloss - Wetting property
Classification code: 546.2 Tin and Alloys - 547.1 Precious Metals - 804.1 Organic
Compounds - 815.1.1 Organic Polymers - 902.1 Engineering Graphics - 931.2 Physical
Properties of Gases, Liquids and Solids
Database: Compendex
13.
Title: Grooving corrosion of oil coiled tubes manufactured by electrical resistance welding
Authors: Bi, Zongyue1, 2 ; Wang, Rong3 ; Jing, Xiaotian1
Author affiliation: 1 The Faculty of Materials Science and Engineering, Xi'an University of
Technology, Xi'an 710048, China
2 Baoji Petroleum Steel Pipe Co., Ltd., Baoji City 721008, Shaanxi Province, China
3 School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China
Corresponding author: Bi, Z. ([email protected])
Source title: Corrosion Science
Abbreviated source title: Corros. Sci.
Volume: 57
Issue date: April 2012
Pages: 67-73
Language: English
ISSN: 0010938X
CODEN: CRRSAA
Publisher: Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract: The characteristics of grooving corrosion of oil coiled tubes by electric resistance
welding were investigated by using electrochemical polarization tests and an immersed corrosion
test. The welded tube exhibited severe localized corrosion in the welding zone. The post-weld heat
treatments reduced the sensitivity of grooving corrosion. A corrosion groove occurred at the fusion
line. The local heat treatment for the welding zone at 930 °C adding the whole heat treatment for
tubes at 690 °C was beneficial to improve the resistance to the grooving corrosion. The reasons of
the grooving corrosion were discussed from the microstructures and chemical compositions of the
weld. © 2011.
Main heading: Corrosion
Controlled terms: Heat treatment - Polarization - Tubes (components) - Welding
Uncontrolled terms: Chemical compositions - Coiled tubes - Corrosion tests Electrical-resistance welding - Electrochemical polarization test - Fusion lines Grooving Corrosion - Local heat treatment - Localized corrosion - Post weld heat
treatment - Potential parameters - Welded tubes - Welding zones
Classification code: 537.1 Heat Treatment Processes - 538.2 Welding - 539.1 Metals
Corrosion - 616.1 Heat Exchange Equipment and Components - 711.1 Electromagnetic
Waves in Different Media
DOI: 10.1016/j.corsci.2011.12.033
Database: Compendex
14.
Title: Research on tubular product and welding performance of X80 grade for the Second West
To East Gas Pipeline Project
Authors: Bi, Zongyue1, 2 ; Liu, Haizhang2 ; Niu, Hui2 ; Jing, Xiaotian1
Author affiliation: 1 College of Material Science and Engineering, Xi' An University of
Technology, Shan' xi, Xi' an, China
2 Welded Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Shan' xi, Baoji, China
Corresponding author: Bi, Z.
Source title: Proceedings of the 10th International Conference on Steel Rolling
Abbreviated source title: Proc. Int. Conf. Steel Roll.
Monograph title: Proceedings of the 10th International Conference on Steel Rolling
Issue date: 2010
Language: English
ISBN-13: 9787502453596
Conference name: 10th International Conference on Steel Rolling, ICSR
Conference location: Beijing, China
Sponsor: Anshan Iron and Steel Group Corporation
Publisher: Metallurgical Industry Press, 39 Songzhuyuan North Alley,Beiheyan, St. Beijing,
100009,P.R., China
Abstract: According to the requirement of the National Second West to East Gas Pipeline
Construction Project, the production technology of X80 grade spiral submerged are welded
pipe(φ1219 mm × 18. 4 mm) which is produced by using "one step" and "two step" technology is
presented in this paper. The microstrueture and properties of X80 pipeline steel were researched
and analyzed with scanning electron microscope(SEM), transmission electron microscope(TEM)
and other methods. BSG-H06H1 welding wire of Mn-Mo-B-Ti alloy system and BSG-SJ101H1
sintered flux were successfully designed and developed. When this kind of welding wire and flux
were used in the production of X80 grade steel pipe, the main structure of the welding seam
matched the high strength and toughness of the pipe and was acicular ferrite. The welding speed
could be up to 1.7m/min. The thermal simulation experiment and welding technology showed that
the best toughness of the welding seam was obtained when the weld heat input was 20 ∼ 25
KJ/em. Meanwhile, the research also showed that the yield strength of X80 steel changed verylittle before and after the production of the pipe. Based on the analysis of the X80 grade
submerged arc welded pipe(φ1219 mm × 18. 4 mm), the performance met the requirement ol the
specification.
Page count: 7
Main heading: Welding
Controlled terms: Gas pipelines - Manganese - Research - Scanning electron
microscopy - Seam welding - Sintering - Steel pipe - Submerged arc welding Transmission electron microscopy - Wire
Uncontrolled terms: Acicular ferrite - Alloy system - Grade steel pipe - Heat input High strength - Main structure - Pipeline construction - Pipeline projects Production technology - Submerged arc welded
- Thermal simulations - Transmission
electron microscope - Tubular products - Welded pipes - Welding materials Welding process - Welding speed - Welding technology - Welding wires - X-80
pipeline - X80 steel
Classification code: 741.3 Optical Devices and Systems - 741.1 Light/Optics - 545.3
Steel - 543.2 Manganese and Alloys - 901.3 Engineering Research - 538.2.1 Welding
Processes - 536.1 Powder Metallurgy Operations - 535.2 Metal Forming - 522 Gas
Fuels - 538.2 Welding
Database: Compendex
15.
Title: Research on PQ control strategy for PV inverter in the unbalanced grid
Authors: Cao, Hui1 ; Zhang, Hui1 ; Jiang, Wentao1 ; Wei, Santong1
Technology, Xi'an, China
Corresponding author: Cao, H. ([email protected])
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: Aimed at the problem that the photovoltaic grid inverter output asymmetry current in
the case of the grid voltage unbalance of the micro-grid, through the analysis of the inverter output
characterization under the unbalanced conditions.Adopt double-loop dq control to carry out
positive and negative sequence separation, respectively positive and negative sequence current are
feedforward decoupling controlled, in order to offset the negative sequence current, and achieve
the purpose of grid current balance. © 2012 IEEE.
Main heading: Energy resources
Controlled terms: Control
Uncontrolled terms: Control strategies - Double-loop - Feed-forward decoupling Grid current - Grid voltage - Micro grid - Negative sequence - Negative-sequence
currents - Output characterization - Photovoltaic
- PV inverter - Three phase
Classification code: 525.1 Energy Resources and Renewable Energy Issues - 731 Automatic
Control Principles and Applications - 732 Control Devices
DOI: 10.1109/APPEEC.2012.6307159
Database: Compendex
16.
Title: Analysis and simulation of a 4H-SiC semi-superjunction Schottky barrier diode for softer
reverse-recovery
Authors: Cao, Lin1 ; Pu, Hong-Bin1 ; Chen, Zhi-Ming1 ; Zang, Yuan1
Author affiliation: 1 Department of Electronic Engineering, Xi'An University of Technology,
Xi'an 710048, China
Corresponding author: Cao, L. ([email protected])
Source title: Chinese Physics B
Abbreviated source title: Chin. Phys.
Volume: 21
Issue: 1
Issue date: January 2012
Language: English
ISSN: 16741056
Publisher: Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE,
United Kingdom
Abstract: In this paper, a 4H-SiC semi-superjunction (SJ) Schottky barrier diode is analysed and
simulated. The semi-SJ structure has an optimized design and a specific on-resistance lower than
that of conventional SJ structures, which can be achieved without increasing the process difficulty.
The simulation results show that the specific on-resistance and the softness factor depend on the
aspect and thickness ratios, and that by using the semi-SJ structure, specific on-resistance can be
reduced without decreasing the softness factor. It is observed that a trade-off exists between the
specific on-resistance and the softness of the diode. © 2012 Chinese Physical Society and IOP
Publishing Ltd.
Main heading: Semiconducting silicon compounds
Controlled terms: Diodes - Schottky barrier diodes - Silicon carbide
Uncontrolled terms: 4H-SiC - Analysis and simulation - Optimized designs Schottky barriers - semi-superjunction - Softness factor - Specific-on-resistance Thickness ratio
Classification code: 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor
Devices and Integrated Circuits - 804.2 Inorganic Compounds
DOI: 10.1088/1674-1056/21/1/017303
Database: Compendex
17.
Title: Effects of temperature on tensile strength of carbon fiber and carbon/epoxy composite
sheets
Authors: Cao, Shenghu1, 2 ; Wu, Zhishen2, 3 ; Li, Feng4
Author affiliation: 1 School of Civil Engineering and Architecture, Xi'an University of
Technology, China
2 Department of Urban and Civil Engineering, Ibaraki University, Japan
3 International Institute for Urban Systems Engineering, Southeast University, China
4 Architectural Branch, Shanghai Urban Construction Design and Research Institute, China
Corresponding author: Cao, S. ([email protected])
Volume: 476-478
Monograph title: New Materials and Processes
Issue date: 2012
Pages: 778-784
Language: English
ISSN: 10226680
ISBN-13: 9783037853719
Conference name: 3rd International Conference on Manufacturing Science and Engineering,
ICMSE 2012
Conference location: Xiamen, China
Sponsor: Fujian University of Technology; Xiamen University; Fuzhou University; Huaqiao
University; University of Wollongong
Abstract: With the increased use of carbon fiber reinforced polymer (CFRP) composites in civil
infrastructure, understanding the fire structural performance of these materials is an important
safety issue. In this paper, the effect of temperature on the tensile strength of carbon fibers and
carbon/epoxy composite sheets was experimentally determined from 20°C to 500°C. Meanwhile,
in order to better understand the strength degradation of carbon fiber-polymer composites at
elevated and high temperatures, the tension tests were also performed for pure epoxy resin and
CFRP sheets by means of 10°C off-axis at the range of 20-80°C, respectively. The experimental
results reveal that the strength decrease of carbon composites under tensile loading at elevated and
high temperatures is dependent on both thermal softening of the epoxy polymer matrix and
thermally-activated weakening of the fibers. The reduction in strength of carbon fiber is attributed
to oxidation of the high strength grapheme layer at the near-surface fiber region. © (2012) Trans
Tech Publications.
Main heading: Carbon fibers
Controlled terms: Composite materials - Epoxy resins - Manufacture - Polymer
matrix composites - Temperature - Tensile strength - Tensile testing
Uncontrolled terms: Carbon composites - Carbon fiber reinforced polymer composite Carbon/epoxy composites - CFRP sheet - Civil infrastructures - Effect of temperature
- Effects of temperature - High strength - High temperature - Near-surface Off-axis - Safety issues - Strength degradation - Structural performance - Tensile
loading - Tension tests - Thermal softening
Classification code: 951 Materials Science - 815.1.1 Organic Polymers - 815.1
Polymeric Materials - 811 Cellulose, Paper and Wood Products - 804 Chemical Products
Generally - 641.1 Thermodynamics - 537.1 Heat Treatment Processes - 422.2 Strength
of Building Materials : Test Methods - 422 Strength of Building Materials; Test Equipment
and Methods - 421 Strength of Building Materials; Mechanical Properties - 415 Metals,
Plastics, Wood and Other Structural Materials
Database: Compendex
18.
Title: Love waves in piezoelestric layered structure with functionally graded materail half space
Authors: Cao, Xiao-Shan1 ; Jin, Feng2 ; Mo, Xiao-Yi1 ; Shi, Jun-Ping1
Author affiliation: 1 Department of Engineering Mechanics, Xi'an University of Technology,
Xi'an 710048, China
2 MOE Key Laboratory for Strength and Vibration, Xi'an Jiaotong University, Xi'an 710049,
China
Corresponding author: Cao, X.-S. ([email protected])
Source title: Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and
Device Applications, SPAWDA 2011
Abbreviated source title: Proc. Symp. Piezoelectricity, Acoust. Waves Device Appl., SPAWDA
Monograph title: Proceedings of the 2011 Symposium on Piezoelectricity, Acoustic Waves and
Device Applications, SPAWDA 2011
Issue date: 2011
Pages: 240-244
Language: English
ISBN-13: 9781467310789
Conference name: 2011 Symposium on Piezoelectricity, Acoustic Waves, and Device
Applications, SPAWDA 2011
Conference date: December 9, 2011 - December 11, 2011
Conference location: Shenzhen, Guangdong, China
Sponsor: IEEE UFFC Society; The Acoustical Society of China (ASC); The Chinese Society of
Theoretical and Applied Mechanics (CSTAM)
Publisher: IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331,
United States
Abstract: In this theoretical study, we investigate the propagation of Love waves in a
piezoelectric layered structure. The substrate of the layered structure is a functionally graded
material (FGM) in which parameters vary along thickness and in the bounded domain. Both
variable substitution and power series technique, which are shown to have good convergence and
high precision, are employed for the asymptotic analytical derivations of the governing equation
of Love wave. The influence of the gradient coefficient of FGM on the dispersion curves, and
electro-mechanical coupling factor, and the displacement amplitude distributions of Love waves in
this structure are investigated. The theoretical results set guidelines not only for the design of high
performance surface acoustic waves (SAW) devices using the FGM substrate, but also for the
measurement of material properties of FGM half space using Love waves. © 2011 IEEE.
Main heading: Dispersions
Controlled terms: Acoustic surface wave devices - Acoustic waves - Acoustics Acoustoelectric effects - Convergence of numerical methods - Crystallography Functionally graded materials - Geometry - Piezoelectric devices - Piezoelectricity
Uncontrolled terms: Bounded domain - Dispersion curves - Displacement amplitudes Functionally graded - Governing equations - Half spaces - High performance surfaces
- High precision - Layered Structures - Love wave
- Material property - Power
series - Theoretical result - Theoretical study - Variable substitution
Classification code: 951 Materials Science - 933.1 Crystalline Solids - 921.6 Numerical
Methods - 921 Mathematics - 752.1 Acoustic Devices - 751.1 Acoustic Waves 751 Acoustics, Noise. Sound - 714 Electronic Components and Tubes - 704 Electric
Components and Equipment - 701.1 Electricity: Basic Concepts and Phenomena - 415
Metals, Plastics, Wood and Other Structural Materials
DOI: 10.1109/SPAWDA.2011.6167235
Database: Compendex
19.
Title: Transverse shear surface wave in a functionally graded material infinite half space
Authors: Cao, Xiaoshan1 ; Jin, Feng2 ; Kishimoto, Kikuo3
Author affiliation: 1 Department of Engineering Mechanics, School of Civil Engineering and
Architecture, Xi'An University of Technology, Xi'an 710048, China
2 MOE Key Laboratory for Strength and Vibration, Xi'An Jiaotong University, Xi'an 710049,
China
3 Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1
Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Corresponding author: Jin, F. ([email protected])
Source title: Philosophical Magazine Letters
Abbreviated source title: Philos Mag Lett
Volume: 92
Issue: 5
Issue date: May 1, 2012
Pages: 245-253
Language: English
ISSN: 09500839
E-ISSN: 13623036
CODEN: PMLEEG
Publisher: Taylor and Francis Ltd., 4 Park Square, Milton Park, Abingdon, Oxfordshire, OX14
4RN, United Kingdom
Abstract: The variable substitution and power-series techniques are used for the asymptotic
analytical derivation of the governing equation of a transverse surface wave. The results reveal
that the transverse wave can propagate along the surface of a functionally graded infinite half
space in various modes, and that their dispersion relations are normal. For certain cases, energy is
concentrated on the surface region to a depth of several wavelengths. A new theoretical foundation
based on the transverse surface wave can be provided for graded-material characterization by
experimental measurement. Some phenomena of seismic wave propagation may also be explained.
© 2012 Taylor & Francis.
Controlled terms: Dispersion (waves) - Functionally graded materials - Surface waves
Uncontrolled terms: Dispersion relations - Experimental measurements - Functionally
graded - Governing equations - Half spaces - power-series technique - Surface
region - Theoretical foundations - Transverse shear - Transverse waves - Variable
substitution
Classification code: 415 Metals, Plastics, Wood and Other Structural Materials - 711
Electromagnetic Waves - 711.1 Electromagnetic Waves in Different Media - 751 Acoustics,
Noise. Sound - 931 Classical Physics; Quantum Theory; Relativity - 951 Materials Science
DOI: 10.1080/09500839.2012.659287
Database: Compendex
20.
Title: Effect of gradient dielectric coefficient in a functionally graded material (FGM) substrate
on the propagation behavior of love waves in an FGM-piezoelectric layered structure
Authors: Cao, Xiaoshan1 ; Shi, Junping1 ; Jin, Feng2
Author affiliation: 1 Department of Engineering Mechanics, Xi'An University of Technology,
Xi'an, China
2 MOE Key Laboratory for Strength and Vibration, Xi'An Jiaotong University, Xi'an, China
Corresponding author: Cao, X. ([email protected])
Source title: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Abbreviated source title: IEEE Trans Ultrason Ferroelectr Freq Control
Volume: 59
Issue: 6
Issue date: 2012
Pages: 1253-1257
Language: English
ISSN: 08853010
CODEN: ITUCER
Publisher: Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331,
Piscataway, NJ 08855-1331, United States
Abstract: The propagation behavior of Love waves in a layered structure that includes a
functionally graded material (FGM) substrate carrying a piezoelectric thin film is investigated.
Analytical solutions are obtained for both constant and gradient dielectric coefficients in the FGM
substrate. Numerical results show that the gradient dielectric coefficient decreases phase velocity
in any mode, and the electromechanical coupling factor significantly increases in the first- and
secondorder modes. In some modes, the difference in Love waves' phase velocity between these
two types of structure might be more than 1%, resulting in significant differences in frequency of
the surface acoustic wave devices. © 2012 IEEE.
Main heading: Functionally graded materials
Controlled terms: Acoustic surface wave devices - Electromechanical coupling - Phase
velocity - Piezoelectricity
Uncontrolled terms: Dielectric coefficient - Electro mechanical coupling factors Layered Structures - Love wave - Numerical results - Piezoelectric thin films Propagation behavior - Second order modes
Classification code: 415 Metals, Plastics, Wood and Other Structural Materials - 701.1
Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media
- 752.1 Acoustic Devices
DOI: 10.1109/TUFFC.2012.2315
Database: Compendex
21.
Title: Quasi-thickness-shear waves in thin-film piezoelectric resonators of ZnO and AlN with
tilted C-Axis
Authors: Cao, Xiaoshan1 ; Jin, Feng2 ; Yang, Jiashi3
Technology, Xian, China
2 State Key Laboratory for Mechanical Structure Strength and Vibration, Xi'an Jiaotong
University, Xian, China
3 Department of Mechanical and Materials Engineering, University of Nebraska Lincoln,
Lincoln, NE, United States
Corresponding author: Cao, X.
Source title: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Abbreviated source title: IEEE Trans Ultrason Ferroelectr Freq Control
Volume: 59
Issue: 11
Issue date: 2012
Pages: 2522-2527
Language: English
ISSN: 08853010
CODEN: ITUCER
Abstract: We study the propagation of Lamb waves in a piezoelectric plate of crystals of class
6mm with tilted c-axis. Dispersion relations for waves in ZnO and AlN plates with a few specific
tilting angles of the c-axis are obtained. Displacement amplitude and phase angle distributions
along the plate thickness are also calculated. It is shown that for certain values of the tilting angle
of the c-axis, there exist long waves with a dominating thickness-shear component. The results
further support the possibility of thin-film resonators operating with thickness-shear modes. ©
2012 IEEE.
Main heading: Zinc oxide
Controlled terms: Acoustics - Electronics engineering
Uncontrolled terms: AlN - Dispersion relations - Displacement amplitudes - Long
waves - Phase angles - Piezoelectric plate - Plate thickness - Thickness-shear Thin film piezoelectric - Tilting angle - ZnO
Classification code: 751 Acoustics, Noise. Sound - 718 Telephone Systems and Related
Technologies; Line Communications - 717 Optical Communication - 804.2 Inorganic
Compounds - 716 Telecommunication; Radar, Radio and Television - 714 Electronic
Components and Tubes - 713 Electronic Circuits - 715 Electronic Equipment, General
Purpose and Industrial
DOI: 10.1109/TUFFC.2012.2485
Database: Compendex
22.
Title: Lamb wave propagation in the functionally graded piezoelectric- piezomagnetic material
plate
Authors: Cao, Xiaoshan1, 2 ; Shi, Junping1, 2 ; Jin, Feng1, 2
Author affiliation: 1 Department of Engineering Mechanics, School of Civil Engineering and
Architecture, Xi'An University of Technology, Xi'an 710048, China
2 MOE Key Laboratory for Strength and Vibration, Xi'An Jiaotong University, Xi'an 710049,
China
Corresponding author: Cao, X. ([email protected])
Source title: Acta Mechanica
Abbreviated source title: Acta Mech
Volume: 223
Issue: 5
Issue date: May 2012
Pages: 1081-1091
Language: English
ISSN: 00015970
CODEN: AMHCAP
Publisher: Springer Wien, Sachsenplatz 4-6, P.O. Box 89, Vienna, A-1201, Austria
Abstract: The propagation behaviour of Lamb waves in the functionally graded
piezoelectric-piezomagnetic material plate with material parameters varying continuously along
the thickness direction is investigated in this paper. The power series technique is employed to
solve these variable coefficient ordinary differential equations. Dispersion equations are given for
different boundary conditions. In numerical examples, the influence of the variation of each
parameter on dispersion curves and cut-off frequency in electrically and magnetically open cases
is discussed in detail. Results show that the elastic parameters and density varying along the
thickness direction obviously influence the variation of phase velocity. Some variations in electric
and magnetic parameters also affect the phase velocity but the influence is too small, while others
almost cannot affect the dispersion curves. Cut-off frequency is closely related to two elastic
parameters and to density, whereas other parameters almost cannot influence it. All the results can
provide theoretical guidance not only for the analysis and design of a magnetoelectric transducer
using functionally graded materials, but also for ultrasonic nondestructive evaluation. © 2012
Springer-Verlag.
Controlled terms: Cracks - Elasticity - Functionally graded materials - Ordinary
differential equations - Phase velocity - Piezoelectricity - Ultrasonic applications Ultrasonic waves
Uncontrolled terms: Analysis and design - Different boundary condition - Dispersion
curves - Dispersion equations - Elastic parameters - Functionally graded - Magnetic
parameters - Material parameter - Numerical example - Piezomagnetic materials
Power series - Thickness direction - Ultrasonic nondestructive evaluation - Variable
coefficients
Classification code: 921.2 Calculus - 753.3 Ultrasonic Applications - 753.1 Ultrasonic
Waves - 951 Materials Science - 711.1 Electromagnetic Waves in Different Media 421 Strength of Building Materials; Mechanical Properties - 415 Metals, Plastics, Wood and
Other Structural Materials - 701.1 Electricity: Basic Concepts and Phenomena
DOI: 10.1007/s00707-012-0612-5
Database: Compendex
23.
Title: Optimum thickness of curtain grouting on dam foundation with minimum seepage
pressure resultant
Authors: Chai, Junrui1, 2 ; Cui, Wenjuan2
Author affiliation: 1 College of Hydraulic and Environmental Engineering, China Three
Gorges University, Yichang 443002, Hubei Province, China
2 College of Hydroelectric Engineering, Xi'An University of Technology, Xi' an 710048,
Shaanxi Province, China
Corresponding author: Chai, J. ([email protected])
Source title: Structural and Multidisciplinary Optimization
Abbreviated source title: Struct. Mutltidiscip. Opt.
Volume: 45
Issue: 2
Issue date: February 2012
Pages: 303-308
Language: English
ISSN: 1615147X
E-ISSN: 16151488
CODEN: SMOTB4
Publisher: Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract: The distribution of hydraulic head on the dam foundation plane with curtain grouting
is analyzed by the simplified one-dimensional seepage model, also is studied the effect of various
parameters of curtain grouting on seepage pressure on the foundation plane. The theory of the
optimum thickness of curtain grouting is proposed from the viewpoint of the minimum seepage
pressure resultant and proved by the two-dimensional seepage model and the finite element
method, which includes two cases of homogenous foundation and layered foundation. ©
Springer-Verlag 2011.
Main heading: Seepage
Controlled terms: Concrete construction - Finite element method - Foundations Grouting - Hydraulic structures - Mortar
Uncontrolled terms: Curtain grouting - Dam foundation - Hydraulic heads - Layered
foundation - Optimum thickness - Seepage pressure
Classification code: 921.6 Numerical Methods - 611 Hydroelectric and Tidal Power Plants
- 441 Dams and Reservoirs; Hydro Development - 414.3 Mortar (Before 1993, use code 412)
- 412 Concrete - 407 Maritime and Port Structures; Rivers and Other Waterways - 405
Construction Equipment and Methods; Surveying
DOI: 10.1007/s00158-011-0699-7
Database: Compendex
24.
Title: Empirical research on effect of managerial discretion on CEO pay: Monitoring intensity as
moderator variable
Authors: Changzheng, Zhang1 ; Kai, Gan1
Author affiliation: 1 School of Economics and Management, Xi'an University of Technology,
Xi'an 710054, China
Corresponding author: Changzheng, Z. ([email protected])
Volume: 452-453
Monograph title: Management, Manufacturing and Materials Engineering
Issue date: 2012
Pages: 412-416
Language: English
ISSN: 10226680
ISBN-13: 9783037853511
Conference name: 2011 International Conference on Management, Manufacturing and Materials
Engineering, ICMMM 2011
Conference location: Zhengzhou, China
Sponsor: Int. Assoc. Manage. Sci. Eng. Technol. (IAMSET)
Abstract: The paper focuses on the special manipulation effect of managerial discretion on CEO
pay considering the moderating role of monitoring intensity in China. The paper empirically
indicates that the manipulation effect of managerial discretion on CEO pay does exist, and
quantitatively describes the degree of the manipulation effect, which shows that the manipulation
effect of managerial discretion on CEO pay significantly decreases. The results prove that
monitoring intensity can restrain the manipulation effect of managerial discretion on CEO pay.
Only under a certain monitoring intensity, will CEO pay not exceed the reasonable level too
heavily. © (2012) Trans Tech Publications.
Main heading: Managers
Controlled terms: Industrial research - Manufacture
Uncontrolled terms: CEO pay - Empirical research - Listed firms - Managerial
discretion
Classification code: 537.1 Heat Treatment Processes - 901.3 Engineering Research 912.4 Personnel
Database: Compendex
25.
Title: Application of data mining in urban traffic accidents governance based on association
rules
Authors: Changzheng, Zhang1 ; Shuo, Wang1
Xi'an, China
Corresponding author: Changzheng, Z. ([email protected])
Source title: Advances in Information Sciences and Service Sciences
Abbreviated source title: Adv. Inf. Sci. Serv. Sci.
Volume: 4
Issue: 19
Pages: 169-176
Language: English
ISSN: 19763700
E-ISSN: 22339345
Publisher: Advanced Institute of Convergence Information Technology, Myoungbo Bldg 3F,,
Bumin-dong 1-ga, Seo-gu, Busan, 602-816, Korea, Republic of
Abstract: Since the traffic accidents analysis deals with the dynamic, complex, redundant and
real-time data aiming at finding the hidden treasure, the traditional statistical models can not meet
the requirements, and there is an emergent need for a new method. Data mining methods based on
association rules have been shown to be a powerful tool, particularly for dealing with the
prediction and classification issues. This study investigates and improves a data mining algorithm
of association rules, and selects the traffic accidents data in a given city in China. Applying this
data mining algorithm with the selected data, several effective patterns are successfully mined and
evaluated which exceed the experience and expectation of the traffic management authorities and
can contribute much to traffic accidents governance practices. The simulating results show that
compared with traditional statistical methods, data mining of association rules is a good alternative
method on analyzing the urban traffic accidents.
Main heading: Data mining
Controlled terms: Algorithms - Association rules - Highway accidents - Websites
Uncontrolled terms: Alternative methods - Data mining algorithm - Data mining methods
- Real-time data - Statistical models - Traffic management
Classification code: 921 Mathematics - 914.1 Accidents and Accident Prevention - 903.1
Information Sources and Analysis - 723 Computer Software, Data Handling and Applications
- 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical
Communication - 716 Telecommunication; Radar, Radio and Television
DOI: 10.4156/AISS.vol4.issue19.21
Database: Compendex
26.
Title: Micro-siting technique for wind turbines under complex terrain
Authors: Chen, Ai1 ; Liu, Hongzhao1 ; Yang, Yingchao1 ; Xu, Gang1 ; Mu, Anle1
Author affiliation: 1 School of Mechanical and Precision Instrument Engineering, Xi'an
University of Technology, Xi'an 710048, China
Corresponding author: Liu, H. ([email protected])
Source title: Taiyangneng Xuebao/Acta Energiae Solaris Sinica
Abbreviated source title: Taiyangneng Xuebao
Volume: 33
Issue: 5
Pages: 782-788
Language: Chinese
ISSN: 02540096
CODEN: TYNPDG
Publisher: Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract: Based on the oilfield's actual complicated topographical features and fully considering
the impact of the surrounding terrain, a complex 3D analysis model was formed. By adopting
numerical model method which is based on Computational Fluid Dynamics (CFD),
three-dimensional simulation of mountain air flow over complex terrain was realized. Then, the
wind field distribution of the model and the hill surface wind speed distribution were researched
under different wind flow directions. Finally, the specific installation of wind turbine and the
tower height was determined.
Main heading: Landforms
Controlled terms: Computational fluid dynamics - Oil fields - Three dimensional Turbulence - Wind effects - Wind turbines
Uncontrolled terms: 3D analysis - Complex terrains - Micro-siting technique Micrositing - Mountain air flow - Surface wind speed - Three dimensional simulations
- Topographical features - Wind field - Wind flow - Wind velocities
Classification code: 443.1 Atmospheric Properties - 481.1 Geology - 511 Oil Field
Equipment and Production Operations - 615.8 Wind Power (Before 1993, use code 611 ) 902.1 Engineering Graphics - 921.6 Numerical Methods
Database: Compendex
27.
Title: Strategy for reactive control in low voltage ride through of photovoltaic power station
Authors: Chen, Bo1 ; Zhu, Xiao-Dong1 ; Zhu, Ling-Zhi1 ; Lai, Jin-Peng2
Author affiliation: 1 State Grid Electric Power Research Institute, Nanjing 210003, China
2 Institute of Water Resource and Hydro-electric Engineering, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Chen, B. ([email protected])
Source title: Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control
Abbreviated source title: Dianli Xitong Baohu yu Kongzhi
Volume: 40
Issue: 17
Issue date: September 1, 2012
Pages: 6-12
Language: Chinese
ISSN: 16743415
Publisher: Power System Protection and Control Press, 1706 XJ Avenue, Xuchang, 461000,
China
Abstract: Aiming at the status quo that PV power station is usually running under conditions of
unity power factor to output active power as much as possible and it outputs almost no reactive
power which results in a certain extent waste of apparent power when PV power station is not
running at full power, a strategy for reactive power control based on inverter's LVRT ability is
proposed. PV inverter's structure and power control mode are analyzed and the limit of reactive
power output is calculated, which would send reactive power to the grid using its own ability. This
paper uses the DIgSILENT software to compare and analyze each electric quantities under
conditions of load variation and three phase short-circuit fault with and without the reactive power
control strategy. The results of simulation show that the proposed strategy can make PV power
station connected to the grid when faults happen and send reactive power to support voltage of
PCC, resulting in the voltage stability of local grid.
Main heading: Reactive power
Controlled terms: Electric power factor - Power plants - Standby power systems
Uncontrolled terms: Active power - Apparent power - Compare and analyze Electric quantity - Load variations - Local grids - Low-voltage ride-through Photovoltaic power - Power station - PV inverter - Reactive control - Reactive
power output - Short-circuit fault - Status quo - Three phase - Unity power factor
- Voltage support
Classification code: 611 Hydroelectric and Tidal Power Plants - 613 Nuclear Power Plants
- 614 Steam Power Plants - 615 Thermoelectric, Magnetohydrodynamic and Other Power
Generators - 706 Electric Transmission and Distribution
Database: Compendex
28.
Title: Impact of structural change of soils on stability in slope excavation
Authors: Chen, Chang-Lu1, 2 ; Shao, Sheng-Jun1 ; She, Fang-Tao1
Author affiliation: 1 Institute of Geotechnical Engineering, Xi'an University of Technology,
Xi'an 710048, China
2 Bijie University, Bijie 551700, China
Corresponding author: Chen, C.-L. ([email protected])
Source title: Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
Abbreviated source title: Yantu Gongcheng Xuebao
Volume: 33
Issue: 12
Issue date: December 2011
Pages: 1938-1942
Language: Chinese
ISSN: 10004548
CODEN: YGXUEB
Publisher: Chinese Society of Civil Engineering, 34 Hujuguan, Nanjing, 210024, China
Abstract: Based on the structural studies and a large number of tests, a reasonable evaluation on
structural change rules of soils is given. The structural parameters considering the combined
effects of shear stress and ball stress of soils as well as an applicable expression are proposed. The
relations between the structural parameters and the strength parameters are analyzed. In the
process of slope excavation, the structural change of soils will affect their strength parameters.
The structural change should consider the safety of slope excavation. Compared with the
traditional methods without considering structural soil slope, the results show that the structural
change of soils in excavation has great impact on their stability, and the safety factor of the slope
after excavation considering structural change is less than that without considering the structural
change.
Main heading: Slope stability
Controlled terms: Excavation - Safety factor - Shear flow - Soils
Uncontrolled terms: Combined effect - Soil slopes - Strength parameters - Strength
reduction method - Structural change - Structural parameter - Structural studies
Classification code: 421 Strength of Building Materials; Mechanical Properties - 483.1 Soils
and Soil Mechanics - 502.1 Mine and Quarry Operations - 662.1 Automobiles
Database: Compendex
29.
Title: FSO MIMO system in layered detection algorithm of space-time code
Authors: Chen, Dan1 ; Ke, Xizheng1 ; Li, Tie2
2 Science and Technology on Electromechanical Dynamic Control Laboratory, Xi'an 710065,
China
Corresponding author: Chen, D. ([email protected])
Source title: Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
Abbreviated source title: Hongwai yu Jiguang Gongcheng Infrared Laser Eng.
Volume: 41
Issue: 6
Issue date: June 2012
Pages: 1550-1555
Language: Chinese
ISSN: 10072276
Publisher: Chinese Society of Astronautics, P.O. Box 225-32, Tianjin, 300192, China
Abstract: Multi-Input Multi-Output (MIMO) system can greatly improve the spectrum
efficiency and system capacity. Based on the analysis of MIMO system, a research on vertical
stratification space-time system (V-BLAST) detection algorithm of wireless optical
communication was made in depth. Firstly, several typical detection algorithms were studied as
ML, ZF, MMSE and OSIC. Based on OOK and 4PPM modulation, the system BER performance
using different detection algorithms was simulated. Then a new system combining Turbo and
BLAST technique was put forward which used SISO iterative detection method. The simulation
results show that among all layered space-time detection algorithms, the optical performance of
ML is best, followed by SISO-MAP and ZF algorithm, and Turbo-BLAST system could improve
the anti-jamming performance of FSO.
Main heading: Signal detection
Controlled terms: Communication channels (information theory) - Data communication
equipment - Data communication systems - MIMO systems - Optical communication
- Space time adaptive processing
Uncontrolled terms: Detection algorithm - Layered space-time systems - Multi-output Turbo-BLAST - Wireless optical communication
Classification code: 961 Systems Science - 723 Computer Software, Data Handling and
Applications - 718 Telephone Systems and Related Technologies; Line Communications 717.1 Optical Communication Systems - 717 Optical Communication - 716.1 Information
Theory and Signal Processing - 716 Telecommunication; Radar, Radio and Television
Database: Compendex
30.
Title: Research on diversity receive technology on wireless optical communication using
subcarrier modulation
Authors: Chen, Dan1 ; Ke, Xi-Zheng1
Author affiliation: 1 School of Automation and Information, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Chen, D.
Source title: Tongxin Xuebao/Journal on Communications
Abbreviated source title: Tongxin Xuebao
Volume: 33
Issue: 8
Pages: 128-133
Language: Chinese
ISSN: 1000436X
Publisher: Editorial Board of Journal on Communications, No.1 Binhe Road, Hepingli,
Dongcheng District, Beijing, 1000013, China
Abstract: Based on the log-normal model under the turbulence channel, the BPSK subcarrier
modulated FSO system with spatial diversity was established. Under different scintillation
distribution and different detectors, the error performance and diversity gain among three linear
combining technologies were compared. The simulation results show that the performance
improved of system by MRC is the best, followed by EGC, and SelC is poor. Spatial diversity is
efficient to improve the performance and have strong ability on resistance to atmospheric channel
decline. But on short link FSO system experiencing weak irradiance fluctuation, SelC spatial
diversity would not be recommended.
Main heading: Optical communication
Controlled terms: Modulation
Uncontrolled terms: BER performance - Diversity gain - Diversity receive - Error
performance - Linear combining - Log-normal model - On-resistance - Spatial
diversity - Subcarrier - Subcarrier modulation - Wireless optical communication
Classification code: 716 Telecommunication; Radar, Radio and Television - 717 Optical
Communication - 717.1 Optical Communication Systems - 718 Telephone Systems and
Related Technologies; Line Communications
Database: Compendex
31.
Title: Effect of ion cleaning pretreatment on interface microstructure, adhesive strength and
tribological properties of GLC coatings on Al substrates
Authors: Chen, Dichun1 ; Jiang, Bailing2 ; Shi, Huiying2 ; Long, Yanni2
Author affiliation: 1 Advanced Materials Analysis and Test Center, Xi'An University of
Technology, 5 South Jinhua Road, Xi'an 710048, Shaanxi Province, China
2 School of Materials Science and Engineering, Xi'An University of Techonlogy, 5 South Jinhua
Road, Xi'an 710048, Shaanxi Province, China
Corresponding author: Chen, D. ([email protected])
Source title: Vacuum
Abbreviated source title: Vacuum
Volume: 86
Issue: 10
Issue date: April 27, 2012
Pages: 1576-1582
Language: English
ISSN: 0042207X
CODEN: VACUAV
Abstract: In this work, a series of ion cleaning procedures (bias and time) were performed on
aluminum substrate surface prior to the deposition of graphite-like carbon (GLC) coatings. Special
attention has been paid on the interface microstructure, coating/substrate bonding strength and
tribological properties. It was found that ion cleaning critically influenced the adhesion and the
wear resistance of GLC coatings. The optimization of ion cleaning pretreatment revealed that 400
V/30 min is the best ion cleaning conditions. HRTEM observations on the interfacial region
showed that the oxide layer has been removed completely, a strong bonding diffusion interface
formed. However, for the low energy ion cleaning (300 V/10 min), TEM observations on the
interfacial region between the coating and the Al substrate showed that the oxide contamination
still existed. The optimization of GLC layer thickness revealed that the GLC coating with 1 μm
GLC layer exhibited the highest critical load and the lowest friction coefficient of 14.7 N and
0.065, respectively. © 2012 Elsevier Ltd. All rights reserved.
Main heading: Aluminum coatings
Controlled terms: Adhesion - Aluminum - Cleaning - Coatings - Interfaces
(materials) - Ions - Magnetron sputtering - Microstructure - Optimization Substrates - Tribology
Uncontrolled terms: Adhesive strength - Al substrate - Aluminum substrate Bonding strength - Critical load - Diffusion interface - Friction coefficients - GLC
- Interface microstructures - Interfacial region
- Ion cleaning - Layer thickness Low energies - Oxide contamination - Oxide layer - Pre-Treatment - TEM
observations - Tribological properties
Classification code: 933 Solid State Physics - 931 Classical Physics; Quantum Theory;
Relativity - 921.5 Optimization Techniques - 813.2 Coating Materials - 951 Materials
Science - 813.1 Coating Techniques - 801 Chemistry - 541.1 Aluminum - 461
Bioengineering and Biology - 802.3 Chemical Operations
DOI: 10.1016/j.vacuum.2012.03.034
Database: Compendex
32.
Title: Research and design of gene analytical instrument based on PMT
Authors: Chen, Guo-Shao1 ; Zhao, Hong-Yi2
Author affiliation: 1 Xi'an Technological University, Xi'an, 710032, Shaan'xi, China
2 Xi'an University of Technology, Xi'an, 710082, Shaan'xi, China
Corresponding author: Chen, G.-S.
Source title: Proceedings of the 2012 International Conference on Industrial Control and
Electronics Engineering, ICICEE 2012
Abbreviated source title: Proc. Int. Conf. Ind. Control Electron. Eng., ICICEE
Monograph title: Proceedings of the 2012 International Conference on Industrial Control and
Issue date: 2012
Pages: 20-21
Language: English
ISBN-13: 9780769547923
Conference name: 2012 International Conference on Industrial Control and Electronics
Engineering, ICICEE 2012
Conference location: Xi'an, China
Sponsor: Xi'an Technological University; Missouri Western State University; IEEE Kansas City
Section
United States
Abstract: A gene analysis system using photo multiplier tubes as the optical sensor is introduced
in this article. This system consists of msp430f149 processor, optical system, location control
system, signal acquisition and processing unit. The system can analyze the reagent's gene through
detecting the fluorescence emitted from reagent. It has merits of high speed and high precision
compared with real-time detection. © 2012 IEEE.
Main heading: Genes
Controlled terms: Electronics engineering - Optical systems - Signal processing Tubes (components)
Uncontrolled terms: Analytical instrument - Fluorescence detection - Gene analysis High precision - Location control - MSP430F149 - Photo multiplier tube -
Processing units - Real-time detection - Signal acquisitions
Classification code: 718 Telephone Systems and Related Technologies; Line Communications
- 717 Optical Communication - 716.1 Information Theory and Signal Processing - 716
Telecommunication; Radar, Radio and Television - 741.3 Optical Devices and Systems 715 Electronic Equipment, General Purpose and Industrial - 713 Electronic Circuits 616.1 Heat Exchange Equipment and Components - 461.2 Biological Materials and Tissue
Engineering - 714 Electronic Components and Tubes
DOI: 10.1109/ICICEE.2012.13
Database: Compendex
33.
Title: A method for lidar data conversion and standardization
Authors: Chen, Hao1 ; Hua, Dengxin1 ; Zhang, Yikun2 ; Zhou, Zhirong1 ; Wang, Li1
Author affiliation: 1 School of Mechanical Instrumental Engineering, Xi'an University of
Technology, Xi'an, Shaanxi Province, 710048, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi
Province, 710048, China
Corresponding author: Chen, H. ([email protected])
Source title: Proceedings - 2012 7th International Conference on System of Systems
Engineering, SoSE 2012
Abbreviated source title: Proc. - Int. Conf. Syst. Syst. Eng., SoSE
Monograph title: Proceedings - 2012 7th International Conference on System of Systems
Issue date: 2012
Pages: 44-47
Language: English
ISBN-13: 9781467329750
Conference name: 2012 7th International Conference on System of Systems Engineering, SoSE
2012
Conference date: July 16, 2012 - July 19, 2012
Conference location: Genova, Italy
United States
Abstract: Different types of lidar data storage and representation format lead to the
inconsistences of lidar monitoring data structure and dimension, which makes it difficult to share
and analyze lidar site data. Besides, it greatly hinders development of regional atmospheric
environment monitoring work. Thus, a lidar data conversion and standardization method is
presented in this paper. Based on the heterogeneity and two-dimensional structure of the lidar data,
the atmospheric lidar data format is converted to matrix operations, and the blank position of lidar
data generated during lidar data analysis is filled base on the idea of transform matrix and linear
interpolation, then the lidar data format is done in dimensionless treatment by adopting
normalization method. © 2012 IEEE.
Main heading: Data handling
Controlled terms: Atmospheric structure - Data structures - Matrix algebra - Optical
radar - Standardization - Systems engineering
Uncontrolled terms: Atmospheric environment - Atmospheric lidars - Data conversion
- Data standardization - LIDAR data - Linear Interpolation - Matrix operations Normalization methods - Transform matrices - Two-dimensional structures
Classification code: 961 Systems Science - 921.1 Algebra - 912 Industrial Engineering
and Management - 902.2 Codes and Standards - 723.2 Data Processing and Image
Processing - 716.2 Radar Systems and Equipment - 443.1 Atmospheric Properties
DOI: 10.1109/SYSoSE.2012.6333461
Database: Compendex
34.
Title: Mobility-assisted node localization based on TOA measurements without time
synchronization in wireless sensor networks
Authors: Chen, Hongyang1 ; Liu, Bin2 ; Huang, Pei3 ; Liang, Junli4 ; Gu, Yu5
Author affiliation: 1 Institute of Industrial Science, University of Tokyo, Tokyo, Japan
2 Computer Science Department, University of Southern California, Los Angeles, CA, United
States
3 Department of Computer Science and Engineering, Michigan State University, East Lansing,
MI, United States
4 School of Automation and Information Engineering, Xi'an University of Technology, Xi'an,
China
5 Information Systems Architecture Science Research Division, National Institute of Informatics,
Tokyo, Japan
Corresponding author: Chen, H. ([email protected])
Source title: Mobile Networks and Applications
Abbreviated source title: Mobile Networks Appl
Volume: 17
Issue: 1
Monograph title: Special Issue: Advances in Green Mobile Networks
Pages: 90-99
Language: English
ISSN: 1383469X
Publisher: Springer Netherlands, Van Godewijckstraat 30, Dordrecht, 3311 GZ, Netherlands
Abstract: Wireless sensor networks (WSNs) have been proposed for a multitude of
location-dependent applications. To stamp the collected data and facilitate communication
protocols, it is necessary to identify the location of each sensor. In this paper, we discuss the
performance of two novel positioning schemes, which use two generalized geometrical
localization algorithms to achieve an accurate estimation based on time-ofarrival (TOA)
measurements without time synchronization. In order to improve the network performance and
address the limitations of static WSNs on position estimation, a mobile anchor is utilized
effectively and two attractive movement strategies for mobile anchor are designed accordingly.
The effectiveness of our approaches is validated and compared with the traditional Trilateration
method by extensive simulations. © Springer Science+Business Media, LLC 2010.
Main heading: Wireless sensor networks
Controlled terms: Network performance
Uncontrolled terms: Accurate estimation - Extensive simulations - Localization
algorithm - Location dependents - Node localization - Position estimation - Time
synchronization - TOA - TOA measurement - Trilateration - Wireless sensor
network (WSNs)
Communication - 718 Telephone Systems and Related Technologies; Line Communications
- 723 Computer Software, Data Handling and Applications - 732 Control Devices
DOI: 10.1007/s11036-010-0281-3
Database: Compendex
35.
Title: Determination of sodium by near infrared spectroscopy
Authors: Chen, Jian-Hong1 ; Zhu, Ling-Jian1 ; Hua, Deng-Xin1
Author affiliation: 1 Faculty of Mechanical and Precision Instrument Engineering, Xi'an
Corresponding author: Chen, J.-H. ([email protected])
Source title: Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title: Guang Pu Xue Yu Guang Pu Fen Xi
Volume: 32
Issue: 4
Pages: 949-952
Language: Chinese
ISSN: 10000593
CODEN: GYGFED
Abstract: The research on near infrared spectroscopy of sodium in biological and medicine is
significant. Sodion is the main component of electrolytes in human blood and electrolytes help
maintain the body's acid-base balance. In the present paper the concentration of sodium was
determined with the use of NIR spectra. On the basis of NIR spectroscopic measurement
mechanism of sodion, prediction models of the concentration of sodium were developed with
linear regression using the absorbance at selected wavelengths. In order to reduce temperature
perturbations to water bands with the measurement of sodium, Partial least squares regression
(PLS) was adopted using select spectra area. The result shows that the determination coefficients
(R2)=99.82%, the root mean square error of cross validation (RMSECV)=14.5, and the residual
prediction deviation (RPD)=23.7, for the calibration model. It meets the daily requirements of
biochemical detection accuracy. This technique can be applied to quantitative analysis of sodion in
the hospital laboratory.
Main heading: Sodium
Controlled terms: Electrolytes - Hydrogen bonds - Infrared devices - Mathematical
models - Mean square error - Near infrared spectroscopy - Sodium chloride
Uncontrolled terms: Absorbances - Acid-base balance - Biochemical detection Calibration model - Cross validation - Determination coefficients - Human bloods Near-infrared spectroscopy (NIRS) - NIR spectrum - Partial least squares regression Prediction model - Root mean square errors - Spectroscopic measurements Temperature perturbations - Water bands
Classification code: 921 Mathematics - 804.2 Inorganic Compounds - 804 Chemical
Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 801.4
Physical Chemistry - 741.3 Optical Devices and Systems - 731.1 Control Systems 702 Electric Batteries and Fuel Cells - 549.1 Alkali Metals
DOI: 10.3964/j.issn.1000-0593(2012)04-0949-04
Database: Compendex
36.
Title: Algorithm to predict highway tunnel fire based on video data
Authors: Chen, Jian-Xin1 ; Liu, Qing2 ; Chen, Jia3
Author affiliation: 1 School of Highway, Chang'an University, Xi'an, Shaanxi 710064, China
2 Automation and Information Institute, Xi'an University of Technology, Xi'an, Shaanxi 710048,
China
3 JiaLin International Education Center, Beijing 100102, China
Corresponding author: Chen, J.-X. ([email protected])
Source title: Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Abbreviated source title: Beijing Ligong Daxue Xuebao
Volume: 32
Issue: 6
Pages: 596-601
Language: Chinese
ISSN: 10010645
CODEN: BLXUEV
Publisher: Beijing Institute of Technology, 7 Baishiqiao Lu, Beijing, 100081, China
Abstract: By analyzing video data from tunnel test device, an algorithm is proposed to predict
tunnel fire. The algorithm has solved the difficulty that, under tunnel environment, the change of
light environment would impact the detection of fire recognition system. To analysis the fire
dynamic characteristic, it also used a projection scheme to extract rapidly the suspected fire area
and the features of flashing flame. Multi-feature fusion technology was employed to reflect the
flame occurrence probability from video image. Finally, a flame probability model was established
based on the theory of trust degree. The experimental results show that the proposed algorithm has
a good adaptability and practicability against the brightness change and vehicle movement. The
recognition speed is close to 3~5s, the recognition rate can reach 97% or more.
Main heading: Algorithms
Controlled terms: Fires - Forecasting - Tunnels - Video recording
Uncontrolled terms: Fire areas - Fire dynamics - Fire prediction - Fire recognition Highway tunnel - Light environment - Multi-feature fusion - Occurrence probability Probability models - Projection schemes - Recognition rates - Recognition speed Trust degree - Tunnel environments - Tunnel fires - Tunnel test - Vehicle
movements - Video data - Video image - Video image data
Classification code: 401.2 Tunnels and Tunneling - 716.4 Television Systems and Equipment
- 723 Computer Software, Data Handling and Applications - 914.2 Fires and Fire Protection
- 921 Mathematics
Database: Compendex
37.
Title: Distribution network reconfiguration based on simulated annealing immune algorithm
Authors: Chen, Jie1 ; Zhang, Fan2 ; Zhang, Yuexi2
Author affiliation: 1 Electrical Engineering Department, Xi'an University of Technology, Xi'an,
Shaanxi Province, China
2 Changqing Water and Power Supply Department, Qingcheng, Gansu Province, China
Corresponding author: Chen, J. ([email protected])
Source title: Energy Procedia
Abbreviated source title: Energy Procedia
Volume: 12
Monograph title: Proceedings of International Conference on Smart Grid and Clean Energy
Technologies, ICSGCE 2011
Issue date: 2011
Pages: 271-277
Language: English
ISSN: 18766102
Conference name: 1st International Conference on Smart Grid and Clean Energy Technologies,
ICSGCE 2011
Conference location: Chengdu, China
Abstract: A distribution network reconfiguration method based on simulated annealing immune
(SAI) algorithm is proposed in this paper. According to the characteristics of reconfiguration, loop
encoding is used and the public switches between loops are disposed in advance, so the
individuals in evolution turn to be feasible. Besides, the historic and present optimal individuals
are combined to construct vaccine dynamically, and not only the speed of evolution searching but
also the individual performance can be improved by inoculation. On the other hand, the selection
operator based on Boltzmann annealing method, high frequency mutation and immune supplement
are used to keep the population diversity. Through the improvements, the early maturity is avoided
effectively. Reconfiguration results show the prompt convergence and effectiveness of proposed
method. © 2011 Published by Elsevier Ltd.
Main heading: Simulated annealing
Controlled terms: Evolutionary algorithms - Smart power grids
Uncontrolled terms: Boltzmann annealing - Distribution network reconfiguration - High
frequency - Immune Algorithm - Individual performance - Population diversity Selection operators
Classification code: 706.1 Electric Power Systems - 723 Computer Software, Data Handling
and Applications - 921 Mathematics
DOI: 10.1016/j.egypro.2011.10.037
Database: Compendex
38.
Title: SWOT-PEST analysis of China's dry port
Authors: Chen, Ju-Hong1 ; Wang, Yuan1
Xi'an 710054, China
Corresponding author: Chen, J.-H. ([email protected])
Volume: 479-481
Monograph title: Advanced Mechanical Design
Issue date: 2012
Pages: 1004-1012
Language: English
ISSN: 10226680
ISBN-13: 9783037853726
Conference name: 3rd international Conference on Manufacturing Science and Engineering,
ICMSE 2012
Abstract: Dry ports are blooming quickly recently in China. The concept of dry ports was
discussed and analyzed in this paper, SWOT-PEST method was used to study the environment of
dry ports in China, and the suggestions to the development of China's dry port were given at last.
© (2012) Trans Tech Publications.
Main heading: Design
Controlled terms: Manufacture
Uncontrolled terms: China - Dry port - SWOT-PEST analysis
Classification code: 408 Structural Design - 537.1 Heat Treatment Processes
Database: Compendex
39.
Title: Research on numerical simulation model for crack growth driven by detonation gas in
high-deep rock strata
Authors: Chen, Lijing1 ; Zheng, Jian1 ; Zhang, Chengke1
Author affiliation: 1 Xi'an University of Technology, Xi'an, Shaanxi 710048, China
Corresponding author: Chen, L.
Volume: 170-173
Monograph title: Progress in Civil Engineering
Issue date: 2012
Pages: 824-829
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Conference name: 2nd International Conference on Civil Engineering, Architecture and Building
Materials, CEABM 2012
Conference location: Yantai, China
Abstract: The effect of detonation gas upon rock fracture is the cross-frontier research project of
fluid dynamics coupling and rock dynamics of crack dynamic growth, having the important
scientific significance and explicit application value. In the process of detonation gas driven
fracture growth, the varying law of the denotation gas pressure distribution in cracks is
inter-influent with the geometric morphology variations in crack growth. This paper analyzes the
denotation gas flowing behaviors, establishes the flowing model for denotation gas in rock cracks
and the models for the rock crack dynamic response. Also suggests the fluid-solid coupling model
for the denotation gas flowing, rock crack response and the numerical model for simulating crack
growth driven by the denotation gas. The simulation program is developed on the large-sized rock
engineering finite element software (FINAL platform). This numerical analysis platform is used to
carry out the systematic numerical experimental study of several main influencing factors of core
problems concerning pressure fracture length. © (2012) Trans Tech Publications, Switzerland.
Main heading: Gases
Controlled terms: Building materials - Civil engineering - Computer simulation Computer software - Crack propagation - Cracks - Detonation - Dynamic response
- Flow of gases - Fracture - Numerical analysis - Research - Rocks
Uncontrolled terms: Core problems - Crack dynamics - Dynamic couplings Dynamics coupling - Finite element software - Fluid-solid coupling - Fracture growth
- Fracture length - Gas flowing - Gas models - Gas pressures - Geometric
morphology - Influencing factor - Numerical experimental - Numerical simulation
models - Rock cracks - Rock dynamics - Rock engineering - Rock fractures -
Rock stratums - Simulation program
Classification code: 481.1 Geology - 521 Fuel Combustion and Flame Research - 631.1.2
Gas Dynamics - 931.2 Physical Properties of Gases, Liquids and Solids - 723 Computer
Software, Data Handling and Applications - 901.3 Engineering Research - 921.6
Numerical Methods - 723.5 Computer Applications - 421 Strength of Building Materials;
Mechanical Properties - 415 Metals, Plastics, Wood and Other Structural Materials - 408.1
Structural Design, General - 409 Civil Engineering, General - 411 Bituminous Materials
- 412 Concrete - 413 Insulating Materials - 414 Masonry Materials
Database: Compendex
40.
Title: Seismic response analysis of high-speed vehicle-bridge considering soil-structure
interaction
Authors: Chen, Ling-Kun1, 2 ; Jiang, Li-Zhong1, 3 ; Tao, Lei4 ; Yu, Zhi-Wu1, 3
Author affiliation: 1 School of Civil Engineering, Central South University, Changsha 410075,
China
2 College of Civil Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127,
China
3 National Engineering Laboratory for High Speed Railway Construction, Central South
University, Changsha 410075, China
4 College of Water Resources and Hydroelectric Engineering, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Chen, L.-K. ([email protected])
Source title: Yantu Lixue/Rock and Soil Mechanics
Abbreviated source title: Rock Soil Mech
Volume: 33
Issue: 10
Pages: 3162-3170
Language: Chinese
ISSN: 10007598
Publisher: Academia Sinica, Wuhan, 430071, China
Abstract: Based on the finite beam element method, two kinds of whole bridge models of
high-speed railway multi-span simply-supported bridge are set up. One is vehicle-bridge model
including pile foundation, the dynamic impedances of the layered soil are presented, the improved
Penzien model is used to simulate the soil-structure interaction (SSI); the other is vehicle-bridge
model where pier bottom is consolidated without considering SSI; the seismic responses of the
models are computed at different vehicle speeds, pier heights, earthquake strengths and earthquake
waves. The calculation results show that the influence of the SSI on seismic responses of
high-speed vehicle-bridge on soft foundation can not be ignored; the lateral displacement and
acceleration of the bridge are influenced by low-frequency components, those low-frequency
components interact with the earthquake wave incident from bottom side of the piles, which
change the spectrum composition of the foundation movement, the frequency components which
approach to bridge vibration frequency are strengthened; the lateral displacement and acceleration
of bridge increase a lot after considering SSI; the vertical vibration frequency of the bridge
changes little while considering SSI; the vertical displacement of the boxing girder increases little
with the increase of pier height and vehicle speed; the high-frequency components which are
caused mainly by the vehicle load and the track irregularity significantly influenced on the vertical
acceleration of the boxing girder.
Main heading: Vibrations (mechanical)
Controlled terms: Earthquakes - Geologic models - Piers - Pile foundations Railroad plant and structures - Seismic response - Seismic waves - Vehicles
Uncontrolled terms: Bridge model - Bridge vibration - Dynamic impedance Earthquake wave - Finite beam elements - Frequency components - High frequency
components - High-speed railways - Lateral displacements - Layered soils
Low-frequency components - Multi-spans - Seismic response analysis - Soft
foundation - Track irregularity - Vehicle load - Vehicle speed - Vehicle-bridge
system - Vertical accelerations - Vertical displacements - Vertical vibrations
Classification code: 484 Seismology - 483.2 Foundations - 481.1 Geology - 931.1
Mechanics - 432 Highway Transportation - 407.1 Maritime Structures - 402.1
Industrial and Agricultural Buildings - 408 Structural Design
Database: Compendex
41.
Title: Improvement to corrosion resistance of Ni-P coating on MAO magnesium alloy by
BTESPT
Authors: Chen, M.-A.1 ; Cheng, N.1 ; Li, J.-M.2 ; Liu, S.-Y.1
Author affiliation: 1 School of Materials Science and Engineering, Central South University,
Changsha 410083, China
2 School of Materials Science and Engineering, Xï
an University of Technology, Xï
an 710048,
China
Corresponding author: Chen, M.-A. ([email protected])
Source title: Surface Engineering
Abbreviated source title: Surf Eng
Volume: 28
Issue: 7
Pages: 491-497
Language: English
ISSN: 02670844
E-ISSN: 17432944
CODEN: SUENET
Publisher: Maney Publishing, Suite 1C, Joseph's Well, Hanover Walk, Leeds, LS3 1AB, United
Kingdom
Abstract: A layer of nickel-phosphorus alloy was electroless plated on the surface of microarc
oxidised AZ31 magnesium alloy first, and then sealing treatment was performed on the electroless
nickel plated coating using bis- (triethoxysilylpropyl)tetrasulphide silane. Fourier transform
infrared spectroscopy, scanning electron microscope (SEM), energy dispersed X-ray spectroscope
analyses, electrochemical techniques and immersion test were used for the analyses of surface
morphology and structure and corrosion resistance of electroless nickel plated samples before and
after sealing treatment. The results showed that the silane film by sealing treatment improves its
corrosion resistance significantly. © 2012 Institute of Materials, Minerals and Mining.
Main heading: Corrosion resistance
Controlled terms: Coatings - Corrosion - Fourier transform infrared spectroscopy Magnesium - Magnesium alloys - Nickel coatings - Phosphorus - Plating Scanning electron microscopy - Sealing (finishing) - Silanes
Uncontrolled terms: AZ31 magnesium alloy - EIS - Electrochemical techniques Electroless - Electroless nickel - Immersion tests - Microarc - Ni-P coating Nickel-phosphorus alloys - Plated coatings - Silane films
Classification code: 813.2 Coating Materials - 804.1 Organic Compounds - 804
Chemical Products Generally - 801 Chemistry - 741.1 Light/Optics - 542.2 Magnesium
and Alloys - 539.3 Metal Plating - 539.1 Metals Corrosion - 531 Metallurgy and
Metallography
DOI: 10.1179/1743294412Y.0000000015
Database: Compendex
42.
Title: Effecting factor of peak frequency of THz wave from photoconductive antennas
Authors: Chen, Suguo1 ; Shi, Wei1, 2 ; Hou, Lei1 ; Dai, Ruijuan1
Author affiliation: 1 Applied Physics Department, Xi'an University of Technology, No.5,
South Jinhua Road, Xi'an 710048, Shaanxi, China
2 State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University,
No.28 Xianning West Road, Xi'an, 710049, Shaanxi, China
Corresponding author: Shi, W. ([email protected])
Source title: Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title: Proc SPIE Int Soc Opt Eng
Volume: 8330
Monograph title: Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz
Science and Technology
Issue date: 2012
Language: English
ISSN: 0277786X
CODEN: PSISDG
ISBN-13: 9780819489876
Conference name: Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz
Science and Technology
Conference date: November 2, 2011 - November 5, 2011
Conference location: Wuhan, China
Sponsor: Huazhong University of Science and Technology; China Hubei Provincial Science and
Technology Department; Wuhan East Lake Natl. Innov. Model Zone, Opt. Val. China (OVC); The
Optical Society; Hubei Provincial Foreign Experts Affairs Bureau
Publisher: SPIE, P.O. Box 10, Bellingham, WA 98227-0010, United States
Abstract: Photoconductive antennas with different structures generate terahertz (THz) waves
with different peak frequencies at the same experimental conditions, so does the same antenna at
different experimental conditions. It is necessary to investigate the determinants of peak
frequencies of THz radiation from photoconductive antenna to obtain the THz wave with required
peak frequency. In this paper, the factors of laser spot size, trapping time, carrier lifetime, carrier
density, bias field, antenna gap size were analyzed based on our experiment and literatures. The
peak frequency moved to higher frequency with the decrease of antenna gap size, carrier lifetimes,
trapping time, laser beam diameter, and the peak frequency moved to lower frequency with the
decrease of bias field, carrier densities. © 2012 SPIE.
Main heading: Terahertz waves
Controlled terms: Antennas - Carrier concentration - Isomers - Microwave antennas
- Technology
Uncontrolled terms: Beam diameters - Bias field - Different structure - Effecting
factors - Experimental conditions - Gap size - Higher frequencies - Laser spot size
- Lower frequencies - Peak frequencies - Photoconductive antennas - THz radiation
- THz spectrum - THz waves - Trapping time
Classification code: 701.1 Electricity: Basic Concepts and Phenomena - 711 Electromagnetic
Waves - 716 Telecommunication; Radar, Radio and Television - 801 Chemistry - 804
Chemical Products Generally - 901 Engineering Profession
DOI: 10.1117/12.919655
Database: Compendex
43.
Title: Dynamic parameter estimation for Muskingum routing model based on BP artificial neural
network
Authors: Chen, Tianqing1, 2 ; Xie, Jiancang1 ; Zhang, Gang1 ; He, Weiwei3
Author affiliation: 1 Key Lab. of Northwest Water Resources and Environment Ecology of
MOE at XAUT, Xi'an 710048, China
2 Shanxi Company of Real Estate Service, Xi'an 710075, China
3 CCCC First Highway Consultants Co. Ltd., Xi'an 710075, China
Corresponding author: Chen, T. ([email protected])
Volume: 31
Issue: 3
Pages: 31-38
Language: Chinese
ISSN: 10031243
Abstract: This paper purposes a dynamic parameter estimation method of Muskingum routing
model for real-time flood forecasting based on BP artificial neural network to overcome the low
accuracy problem of averaging and grading method in parameter calibration. In this new method,
first flood characteristics are analyzed to obtain BP inputs and then an optimization algorithm is
used for calibration of model parameters, i.e. BP outputs that are used for neutral network training.
Application of this calibrated BP model to real-time flood forecast shows that the model is simple
and more accurate. © right.
Main heading: Neural networks
Controlled terms: Algorithms - Flood control - Floods - Hydrology - Parameter
estimation
Uncontrolled terms: Accuracy problems - BP artificial neural network - BP model BP neural networks - Dynamic parameters - Dynamic process - Flood characteristics
- Flood forecast - Flood forecasting - Model parameters - Muskingum - Neutral
network - Optimization algorithms - Parameter calibration - Routing model
Classification code: 914.1 Accidents and Accident Prevention - 731.1 Control Systems 723.4 Artificial Intelligence - 921 Mathematics - 723 Computer Software, Data Handling
and Applications - 454.1 Environmental Engineering, General - 444 Water Resources -
471 Marine Science and Oceanography
Database: Compendex
44.
Title: Ultrasound image denoising with multi-shape patches aggregation based non-local means
Authors: Chen, Wanjun1 ; Ding, Mingyue2 ; Miao, Yalin1 ; Luo, Lei1
Author affiliation: 1 Department of Information Science, Xi'an University of Technology,
Xi'an, Shannxi 710048, China
2 College of Life Science and Technology, Lmage Processing and Intelligent Control Key
Laboratory of Education Ministry of China, Huazhong University of Science and Technology,
Wuhan, Hubei 430074, China
Corresponding author: Ding, M. ([email protected])
Source title: Proceedings - 2011 International Conference on Intelligent Computation and
Bio-Medical Instrumentation, ICBMI 2011
Abbreviated source title: Proc. - Int. Conf. Intelligent Comput. Bio-Med. Instrum., ICBMI
Monograph title: Proceedings - 2011 International Conference on Intelligent Computation and
Issue date: 2011
Pages: 35-38
Language: English
ISBN-13: 9780769546230
Conference name: 2011 IEEE International conference on Intelligent Computation and
Conference location: Wuhan, Hubei, China
Sponsor: IEEE Tainan Section; Huazhong University of Science and Technology; National
Cheng Kung University
United States
Abstract: The Non-Local Means (NLM) filter uses the redundancy of information in the image
to remove noise, this scheme gives some of the best results among other powerful methods such as
wavelet based approaches or diffusion techniques. Though simple to implement and efficient in
practice, the classical NLM suffers from ringing artifacts around edges when using square patches,
due to an abrupt lack of redundancy of the image. This paper presents an extended NLM based on
Multi-Shape Patches Aggregation (NLM-MSPA) to overcome this problem, and uses it to remove
medical ultrasound images corrupted by multiplicative speckle noise. We have incorporated a
preprocessing step to make the speckle noise much closer to the real additive white Gaussian noise,
hence more amenable to a denoising algorithm such as NLM-MSPA. Results on real images and
artificially speckled images show that the proposed scheme outperforms several classical methods
chosen for comparison in its ability to reduce speckle and preserve edge details. © 2011 IEEE.
Main heading: Medical imaging
Controlled terms: Agglomeration - Noise pollution control - Redundancy - Risk
perception - Speckle - Ultrasonics - Wavelet analysis
Uncontrolled terms: Additive White Gaussian noise - Classical methods - De-noising
algorithm - Medical ultrasound images - Multiplicative speckle noise - Nonlocal Pre-processing step - Real images - REmove noise - Ringing artifacts - risk
estimation - Speckle noise - Speckled images - Ultrasound image despeckling Ultrasound images - Wavelet-based approach
Classification code: 914.1 Accidents and Accident Prevention - 914 Safety Engineering 903 Information Science - 802.3 Chemical Operations - 921 Mathematics - 753.1
Ultrasonic Waves - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 461.7
Health Care - 746 Imaging Techniques
DOI: 10.1109/ICBMI.2011.87
Database: Compendex
45.
Title: Descriptive method for collaborative computing tasks over multiple virtual machines
Authors: Chen, Xiao-Jun1 ; Zhang, Jing1, 2 ; Li, Jun-Huai1
Author affiliation: 1 School of Computer Science and Engineering, Xi'an University of
2 State Key Laboratory for Manufacturing Systems Engineering (Xi'an Jiaotong University),
Xi'an 710048, China
Corresponding author: Chen, X.-J. ([email protected])
Source title: Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Abbreviated source title: Xi Tong Cheng Yu Dian Zi Ji Shu/Syst Eng Electron
Volume: 33
Issue: 12
Pages: 2767-2775
Language: Chinese
ISSN: 1001506X
CODEN: XGYDEM
Publisher: Chinese Institute of Electronics, P.O. Box 165, Beijing, 100036, China
Abstract: A descriptive methodology and its aided construction tool based on feature model for
collaborative computing tasks over multiple virtual machines (CCTMVM) are studied to simple
the description of parallel computing in virtualized platform and improve the development
efficiency of applications. The tasks decomposition policies are discussed from the principle and
method of tasks decomposition, tasks particle judgment and the heuristic rules, and then the
appraisal criterion of parallel relationships among tasks is determined to describe the semantic
actions of feature units based on their timing relationships. The validity of the descriptive method
is determined to judge the effectiveness of the methodology presented from the coefficients of
cohesion coupling and the granularities of feature units. A prototype of aided construction tools for
CCTMVM is designed, and then a problem-solving application in computer aided engineering
(CAE) is taken for an example to analyze its task decomposition. The experimental results show
that the proposed idea and methodology have a certain feasibility for constructing a parallel
computing-oriented CCTMVM.
Main heading: Heuristic methods
Controlled terms: Computer aided analysis - Computer aided engineering - Computer
simulation - Computer supported cooperative work - Couplings - Parallel architectures
- Semantics
Uncontrolled terms: Feature models - Heuristic rules - Semantic action - Task
decomposition - Task description - Task modeling - Virtual machines Virtualizations
Classification code: 602 Mechanical Drives and Transmissions - 722 Computer Systems and
Equipment - 723 Computer Software, Data Handling and Applications - 723.5 Computer
Applications - 903.2 Information Dissemination - 921 Mathematics
DOI: 10.3969/j.issn.1001-506X.2011.12.36
Database: Compendex
46.
Title: Resource reconstruction algorithms for on-demand allocation in virtual computing
resource pool
Authors: Chen, Xiao-Jun1 ; Zhang, Jing1, 2 ; Li, Jun-Huai1 ; Li, Xiang1
2 State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University,
Xi'an 710048, China
Corresponding author: Chen, X.-J. ([email protected])
Source title: International Journal of Automation and Computing
Abbreviated source title: Int. J. Autom. Comput.
Volume: 9
Issue: 2
Pages: 142-154
Language: English
ISSN: 14768186
E-ISSN: 17518520
Publisher: Chinese Academy of Sciences, 90, Sanhao Jie, Shenyang, 110003, China
Abstract: Resource reconstruction algorithms are studied in this paper to solve the problem of
resource on-demand allocation and improve the efficiency of resource utilization in virtual
computing resource pool. Based on the idea of resource virtualization and the analysis of the
resource status transition, the resource allocation process and the necessity of resource
reconstruction are presented. Resource reconstruction algorithms are designed to determine the
resource reconstruction types, and it is shown that they can achieve the goal of resource
on-demand allocation through three methodologies: resource combination, resource split, and
resource random adjustment. The effects that the resource users have on the resource
reconstruction results, the deviation between resources and requirements, and the uniformity of
resource distribution are studied by three experiments. The experiments show that resource
reconstruction has a close relationship with resource requirements, but it is not the same with
current distribution of resources. The algorithms can complete the resource adjustment with a
lower cost and form the logic resources to match the demands of resource users easily. © 2012
Institute of Automation, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
Controlled terms: Experiments - Lakes - Resource allocation
Uncontrolled terms: Resource adjustment - resource combination - resource split status transition - Virtual computing
Classification code: 407 Maritime and Port Structures; Rivers and Other Waterways - 723
Computer Software, Data Handling and Applications - 901.3 Engineering Research - 912.3
Operations Research - 921 Mathematics
DOI: 10.1007/s11633-012-0627-3
Database: Compendex
47.
Title: High-performance GdBa2Cu3O7-x Superconducting film prepared using an advanced
low-fluorine solution
Authors: Chen, Yuanqing1 ; Liu, Zheng1 ; Bai, Lifeng2, 3 ; Yan, Fuxue1
Author affiliation: 1 Department of Material Physics and Chemistry, School of Materials
Science and Engineering, Xi'An University of Technology, Xi'an 710048, China
2 Northwestern Polytechnical University, Xi'an, China
3 Superconducting Materials Research Center, Northwest Institute for Nonferrous Metal
Research, Xi'an 710016, China
Corresponding author: Chen, Y. ([email protected])
Source title: IEEE Transactions on Applied Superconductivity
Abbreviated source title: IEEE Trans Appl Supercond
Volume: 22
Issue: 6
Issue date: 2012
Language: English
ISSN: 10518223
CODEN: ITASE9
Abstract: An advanced low-fluorine GdBa2Cu3O7-x (GBCO) precursor solution was prepared
using barium, gadolinium, and copper acetates as starting materials; lactic acid, methacrylic acid,
and trifluoroacetic acid as additives; and methanol as a solvent. The gel-film cast from this
solution consisted of Gd trifluoroacetate and fluorine-free Ba and Cu salts. The BaCO3-free
precursor was obtained through the pyrolysis of the gel film. After firing at 820 °C, the precursor
was finally transformed to a phase-pure GBCO film. The critical current density $(Jc) of the
GBCO film was measured to reach 3.3 MA/cm2 (at 77 K, 0 T), and its critical transition
temperature (Tc) was 92.6 K. During the pyrolyzing of the film, the relatively small amount of
released fluorinated gases resulted in the rapid fabrication of GBCO film. © 2002-2011 IEEE.
Main heading: Copper
Controlled terms: Barium - Critical current density (superconductivity) - Film
preparation - Fluorine - Gadolinium - Lactic acid - Methanol - Organic solvents
- Superconducting films
Uncontrolled terms: Chemical solution deposition - Coated conductors - Copper acetates
- Critical transition temperatures - Fluorine-free - GdBa2Cu3O7-x (GBCO) - Gel
films - Methacrylic acids - Precursor solutions - Pyrolyzing
- Rapid fabrication Trifluoroacetates - Trifluoroacetic acids
Classification code: 804 Chemical Products Generally - 712.1 Semiconducting Materials 708.3 Superconducting Materials - 804.1 Organic Compounds - 701.1 Electricity: Basic
Concepts and Phenomena - 547.2 Rare Earth Metals - 544.1 Copper - 549.2 Alkaline
Earth Metals
DOI: 10.1109/TASC.2012.2212244
Database: Compendex
48.
Title: Erratum: An advanced low-fluorine solution route for fabrication of high-performance
YBCO superconducting films (Superconductor Science and Technology (2012) 25 (062001))
Authors: Chen, Yuanqing1 ; Wu, Chuanbao1 ; Zhao, Gaoyang1 ; You, Caiyin1
Author affiliation: 1 Department of Materials Physics and Chemistry, Xi'An University of
Technology, Xi'an, Shaanxi Province 710048, China
Source title: Superconductor Science and Technology
Abbreviated source title: Supercond Sci Technol
Volume: 25
Issue: 6
Language: English
ISSN: 09532048
E-ISSN: 13616668
CODEN: SUSTEF
United Kingdom
DOI: 10.1088/0953-2048/25/6/069501
Database: Compendex
49.
Title: An advanced low-fluorine solution route for fabrication of high-performance YBCO
superconducting films
Authors: Chen, Yuanqing1 ; Wu, Chuanbao1 ; Zhao, Gaoyang1 ; You, Caiyin1
Author affiliation: 1 Department of Materials Physics and Chemistry, Xian University of
Technology, Xian, Shaanxi Province, 710048, China
Source title: Superconductor Science and Technology
Abbreviated source title: Supercond Sci Technol
Volume: 25
Issue: 6
Language: English
ISSN: 09532048
E-ISSN: 13616668
CODEN: SUSTEF
United Kingdom
Abstract: We have developed a new low-fluorine solution consisting of non-fluorine (F-free)
barium and copper salts, and fluorine-containing yttrium trifluoroacetate. Using this new
low-fluorine solution, the BaCO3 phase was avoided in the pyrolyzed precursor films. Instead,
CuO, Y and Ba fluorides (YF3 and BaF2) were formed in the precursor films pyrolyzed at 450°C,
which was the same as when an All-TFA solution (prepared using Y, Ba, Cu trifluoroacetates as
precursors) or other fluorine-reduced solutions were used. This new kind of low-fluorine solution
has only 23% of the fluorine content in an All-TFA solution, and the fluorine content was lower
than any other fluorine-reduced solution. Thus, rapid production of YBa2Cu3O7x (YBCO) films
can be easily realized. Using a heating rate of 10°Cmin1 in the pyrolysis process, a high critical
current density (Jc) of 5MAcm 2 (at 77K, 0T) was obtained in YBCO films fabricated on LaAlO 3
(LAO) single crystal substrates from the new starting solution. © 2012 IOP Publishing Ltd.
Main heading: Fluorine
Controlled terms: Barium - Barium compounds - Copper - Fluorine compounds Pyrolysis - Superconducting films - Yttrium - Yttrium barium copper oxides
Uncontrolled terms: Copper salt - Fluorine content - High critical current densities Precursor films - Pyrolysis process - Single crystal substrates - Solution routes Starting solutions - Trifluoroacetates - YBCO film
Classification code: 804 Chemical Products Generally - 802.2 Chemical Reactions 708.3.1 High Temperature Superconducting Materials - 708.3 Superconducting Materials 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 549.2
Alkaline Earth Metals - 544.1 Copper
DOI: 10.1088/0953-2048/25/6/062001
Database: Compendex
50.
Title: Speed identification for induction motor based on improved flux observer
Authors: Chen, Zhenfeng1 ; Zhong, Yanru1 ; Li, Jie1 ; Liang, Peizhi2 ; Zeng, Li2
2 Yongji Xinshisu Electric Equipment Co. Ltd., Yongji 044502, China
Corresponding author: Chen, Z.
Source title: Diangong Jishu Xuebao/Transactions of China Electrotechnical Society
Abbreviated source title: Diangong Jishu Xuebao
Volume: 27
Issue: 4
Pages: 42-47
Language: Chinese
ISSN: 10006753
CODEN: DIJXE5
Publisher: Chinese Machine Press, 1 Nanjie Baiwanzhuang, Beijig, 100037, China
Abstract: The voltage model of rotor flux observer is applied, because it is simple. But the
model is extremely sensitive to measurement errors at low speed because the voltage drop of
stator resistance and the pure integrator of the voltage model has some disadvantages like DC
offset and initial value problems. In this paper, an improved rotor flux observer is presented. The
stator electromotive force is compensated by introducing the errors between the current model and
the voltage model of the stator flux. The ideal integrator is replaced by the new modified low-pass
filter. The voltage model of rotor flux is deduced from the voltage model of stator flux. The speed
is identified based on the improved rotor flux observer. Simulation and experimental results verify
that this strategy improves the dynamic and static performance of the speed identification,
especially at low speed.
Main heading: Speed
Controlled terms: Electromotive force - Induction motors - Initial value problems Stators
Uncontrolled terms: Current models - DC offsets - Flux observers - Low speed Rotor flux observers - Rotor fluxes - Speed identification - Static performance Stator flux - Stator resistance - Voltage drop - Voltage model
Classification code: 705.1 Electric Machinery, General - 705.3.1 AC Motors - 801.4.1
Electrochemistry - 921.2 Calculus - 931.1 Mechanics
Database: Compendex
51.
Title: The design of measurement and control system for condition of stored grain
Authors: Chen, Zhongxiao1 ; Jiang, Junsheng1
Author affiliation: 1 Xi'an University of Technology, City Jinhua Road No. 4, Box 80 #, Xi'an
China, 710032, China
Corresponding author: Grain, S.
Volume: 529
Monograph title: Optical, Electronic Materials and Applications II
Issue date: 2012
Pages: 281-284
Language: English
ISSN: 10226680
ISBN-13: 9783037854303
Conference name: 2nd International Conference on Optical, Electronic Materials and
Applications 2012, OEMA 2012
Conference location: Chongqing, China
Sponsor: National Natural Science Foundation of China (NSFC).
Abstract: In this paper, ARM7 Microcomputer is designed to realize control of the grain storage
environment situation. This control system adopts RS-485 bus to transit data, connecting the
temperature module and humidity module with the upper computer. And a detailed description of
the design of system function modules and the B / S four layer database application program
realization. In this way, the system control computer on the field of grain information real-time
monitoring, and through the Web server interface and Internet on the client establish a connection,
completed the site condition information of remote measurement and control. © (2012) Trans Tech
Publications, Switzerland.
Main heading: Computer control systems
Controlled terms: Computers - Control systems - Microcomputers
Uncontrolled terms: Database applications - Grain storage - Measurement and control Real time monitoring - Remote measurement - RS-485 bus - Site conditions Stored grains - System control - System functions
- Upper computer - Web servers
Classification code: 722 Computer Systems and Equipment - 722.4 Digital Computers and
Systems - 723 Computer Software, Data Handling and Applications - 731.1 Control
Systems
DOI: 10.4028/www.scientific.net/AMR.529.281
Database: Compendex
52.
Title: Service quality measurement of a distribution enterprise serving E-commerce
Authors: Cheng, Fangxia1
Author affiliation: 1 Xi'an University of Technology, PQ: 710048, China
Corresponding author: Cheng, F. ([email protected])
Source title: Proceedings - 2011 4th International Conference on Information Management,
Innovation Management and Industrial Engineering, ICIII 2011
Abbreviated source title: Proc. - Int. Conf. Inf. Manage., Innov. Manage. Ind. Eng., ICIII
Volume: 1
Monograph title: Proceedings - 2011 4th International Conference on Information Management,
Issue date: 2011
Pages: 411-415
Language: English
ISBN-13: 9780769545233
Conference name: 4th International Conference on Information Management, Innovation
Management and Industrial Engineering, ICIII 2011
Conference location: Shenzhen, China
United States
Abstract: Physical distribution service is significant to lowing costs and increasing core
competitiveness for a logistics company serving e-commerce. This paper delineates features and
functions of a distribution company in an E-commerce context. Then, the paper sets an indicator
framework to measure distribution service quality. To do that, this paper employs the AHP method
to determine the weight for an indicator, computing the index of service quality at a distribution
firm (for B-C business), ZTO. The study concludes that for assessing E-commerce distribution
service quality, distribution service is the most important dimension and information service is
fairly important. This study also concludes that ZTO has achieved superior performance in both
customer and order processing service but needs to put a larger amount of effort into information
service for enhancing performance of logistics distribution in the E-commerce setting. © 2011
IEEE.
Main heading: Electronic commerce
Controlled terms: Industrial engineering - Industry - Information management Information services - Innovation - Logistics - Quality of service
Uncontrolled terms: AHP method - Core competitiveness - Distribution - Distribution
companies - Distribution services - E-commerce context - Logistics company Logistics distribution - Order processing - Service Quality
Classification code: 903.4 Information Services - 903.2 Information Dissemination 723.5 Computer Applications - 912 Industrial Engineering and Management - 723
Computer Software, Data Handling and Applications - 717 Optical Communication - 716
Telecommunication; Radar, Radio and Television - 718 Telephone Systems and Related
Technologies; Line Communications
DOI: 10.1109/ICIII.2011.105
Database: Compendex
53.
Title: Study on the generative design method and error budget of a novel desktop multi-axis
laser machine for micro tool fabrications
Authors: Cheng, Xiang1 ; Huang, Yumei2 ; Zhou, Shuangjie3 ; Liu, Junying1 ; Yang, Xianhai1
Author affiliation: 1 Shandong Provincial Key Laboratory of Precision Manufacturing and
Non-traditional Machining, Shandong University of Technology, Zibo 255049, China
2 School of Mechanical Instrumental Engineering, Xi'An University of Technology, Xi'an
710048, China
3 Nantong Ya Hua Shipbuilding Group Co., Ltd, Nantong, Jiangsu 226361, China
Corresponding author: Cheng, X. ([email protected])
Source title: International Journal of Advanced Manufacturing Technology
Abbreviated source title: Int J Adv Manuf Technol
Volume: 60
Issue: 5-8
Pages: 545-552
Language: English
ISSN: 02683768
E-ISSN: 14333015
CODEN: IJATEA
Publisher: Springer London, The Guildway, Old Portsmouth Road, Artington, Guildford, GU3
1LP, United Kingdom
Abstract: Micro end mills made of hard or ultra-hard materials are mainly fabricated by grinding
or by wire electrical discharge machining (WEDM). However, with the advances of new tool
materials from ultra-hard to super-hard together with lower or no electrical conductivity such as
the material of nano-polycrystalline diamond, the grinding or the WEDM method cannot be used
for machining due to their ultra-low process efficiencies for such materials. Laser machining has
been tested an effective method. Accordingly, multi-axis laser machines need to be designed for
micro tool fabrications. In the paper, a typical micro ball end mill with relatively complex features
has been analyzed by the generative design method to generate the number and properties of
needed motion axes. Based on the analysis, a novel five-axis laser machine has been designed.
Aiming at high-quality micro tool fabrications, the kinematics model has been derived for this
five-axis laser machine and error budge has been studied for the subsequently optimum selection
of key motion components. © 2011 Springer-Verlag.
Main heading: Tools
Controlled terms: Ball mills - Budget control - Design - Electric conductivity -
Fabrication - Grinding (machining) - Machine components - Mathematical models
Uncontrolled terms: Ball end mill - Electrical conductivity - Error budgets - Five-axis
- Generative design - High quality - Kinematics models - Laser machines - Laser
machining - Micro-end mills - Micro-tool - Motion axes - Motion components Multi-axis - Optimum selection - Process efficiency - Tool materials - Wire
electrical discharge machining
Classification code: 913.4 Manufacturing - 911 Cost and Value Engineering; Industrial
Economics - 802.1 Chemical Plants and Equipment - 701.1 Electricity: Basic Concepts and
Phenomena - 921 Mathematics - 606.2 Abrasive Devices and Processes - 603 Machine
Tools - 601.2 Machine Components - 408 Structural Design - 605 Small Tools and
Hardware
DOI: 10.1007/s00170-011-3630-x
Database: Compendex
54.
Title: Constructed wetland as an alternative solution to maintain urban landscape lake water
quality: Trial of Xing-qing Lake in Xi'an city
Authors: Cui, Fang1 ; Yuan, Bo2 ; Wang, Ying2
Author affiliation: 1 Geography Department, Baoji University of Art and Sciences, Baoji
721013, Shaanxi, China
2 Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology,
Xi'an 710048, Shaanxi, China
Corresponding author: Wang, Y. ([email protected])
Source title: Procedia Environmental Sciences
Abbreviated source title: Procedia Environ. Sci.
Volume: 10
Issue: PART C
Monograph title: 2011 3rd International Conference on Environmental Science and Information
Application Technology, ESIAT 2011
Issue date: 2011
Pages: 2525-2532
Language: English
E-ISSN: 18780296
Conference name: 2011 3rd International Conference on Environmental Science and
Information Application Technology, ESIAT 2011
Sponsor: Hong Kong Education; Engineering Technology Press; Asia Pacific Environmental
Science Research Center; Wuhan University; Huazhong Normal University
Publisher: Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
Abstract: This paper describes a pilot study aimed to use constructed wetland (CW) technology
for urban lake water treatment to maintain water quality. A SFS (Surface Flow Wetland) and/or a
FWS (Subsurface Flow Wetland) CW was continuously operated in autumn and winter. The
results were then compared and the factors to affect the results were examined. The results showed
that, regarding the overall level of the system stability and the pollutants removal efficiency, SFS
constructed wetland is better than the FWS wetland. The average removal efficiency of SFS
wetland is 84.2% for COD, 53.8% for NH3-N, 47.9% for TN, 73.3% for TP and 86.6% for SS. It
is noted that the NH3-N, TN removal rate is not high in single-stage wetlands. Therefore, some
novel actions and other ecological processing technologies such as multi-stage wetland system,
effluent recirculation etc should be introduced. © 2011 Published by Elsevier Ltd.
Main heading: Wetlands
Controlled terms: Environmental engineering - Lakes - System stability - Technology
- Water pollution - Water quality
Uncontrolled terms: Constructed wetlands - Effluent recirculation - Lake water quality
- Multi-stage - Pilot studies - Pollutants removal - Processing technologies Removal efficiencies - Removal rate - Single stage - Subsurface flow wetlands Surface-flow wetland - Urban lake - Urban lakes - Urban landscape - Wetland
systems
Classification code: 961 Systems Science - 901 Engineering Profession - 454
Environmental Engineering - 453.2 Water Pollution Control - 453 Water Pollution 442.2 Land Reclamation - 407 Maritime and Port Structures; Rivers and Other Waterways
DOI: 10.1016/j.proenv.2011.09.393
Database: Compendex
55.
Title: Small and medium-sized enterprise trade credit distribution study
Authors: Cui, Jie1 ; Hu, Haiqing1 ; Zhang, Daohong1
Author affiliation: 1 School of Business Administration, Xi'an University of Technology, Xi'an,
Shannxi, China
Corresponding author: Cui, J. ([email protected])
Volume: 3
Issue date: 2011
Pages: 316-319
Language: English
ISBN-13: 9780769545233
United States
Abstract: Trade credit is a form of credit, which can be an alternate credit funds support the
business. In china, due to the underdevelopment of the financial market, SMEs unable to obtain
sufficient funds from bank. There is a large demand about trade credit for SMEs. This article
studied SMEs' trade credit distribution through building regression model with GDP. The results
find that SMEs' trade credit distribution is uneven in China, however, not only have correlation
with GDP, but also affected by industry and other factors. © 2011 IEEE.
Main heading: Industry
Controlled terms: Commerce - Industrial engineering - Information management Innovation - Regression analysis
Uncontrolled terms: Distribution - Financial market - Regression model - Small and
medium-sized enterprise - SMEs - Trade credit
Classification code: 911.2 Industrial Economics - 912 Industrial Engineering and
Management - 922.2 Mathematical Statistics
DOI: 10.1109/ICIII.2011.358
Database: Compendex
56.
Title: Vapor-solid method and optical properties of aluminum nitride nanowires
Authors: Cui, Jingya1 ; Lü, Huimin1 ; Cheng, Sai1
Author affiliation: 1 Department of Applied Physics, Xi'an University of Technology, Xi'an
710054, China
Corresponding author: Lü, H. ([email protected])
Source title: Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Abbreviated source title: Kuei Suan Jen Hsueh Pao
Volume: 39
Issue: 12
Pages: 1898-1903
Language: Chinese
ISSN: 04545648
CODEN: KSYHA5
Abstract: Single-crystal AlN nanowires were prepared via double decomposition reaction, in
which AlCl3 and NaN3 were used as raw materials. Samples were grayish white powder with
reaction temperature of 650°C and reaction time of 3 h. The AlN nanomaterials were tested by
X-ray diffraction, transmission electron microscopy, and selected area electron diffraction. It is
indicated that the samples are hexagonal AlN nanowires of long straight cylinders with a smooth
surface about 50 nm in diameter and more than 10 μm in length, and its lattice constants are
a=0.268 nm, c=0.498 nm. Performance test of the as-prepared samples shows that band-gap is
6.14 eV. The formation cause of each peak of photoluminescence spectra is explained. The growth
of nanowires is interpreted by vapor-solid growth mechanism and preferred orientation principle.
Main heading: Aluminum nitride
Controlled terms: Aluminum - Decomposition - Electron diffraction - Lattice
constants - Nanowires - Nitrides - Optical properties - Photoluminescence Substitution reactions - Transmission electron microscopy - Vapors - X ray diffraction
Uncontrolled terms: AlN - AlN nanowire - Band gaps - Double decomposition Optical performance - Performance tests - Photoluminescence spectrum - Preferred
orientations - Reaction temperature - Replacement reactions
- Selected area electron
diffraction - Smooth surface - Vapor solid mechanism - Vapor-solid growth mechanism
- Vapor-solid method - White powder
Classification code: 933 Solid State Physics - 932.2 Nuclear Physics - 804.2 Inorganic
Compounds - 804 Chemical Products Generally - 933.1.1 Crystal Lattice - 802.2
Chemical Reactions - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 541.1
Aluminum - 761 Nanotechnology
DOI: CNKI:11-2310/TQ.20111129.1502.003
Database: Compendex
57.
Title: Research on docking problem between enterprise and engineering profession of general
institutes of higher education
Authors: Cui, Xiaobo1 ; He, Haisheng1 ; Du, Bin1 ; Luo, Rubai1
Author affiliation: 1 Institute of Printing and Packing Engineering, Xi'An University of
Technology, Xi'an, Shaanxi 710048, China
Corresponding author: Cui, X.
Source title: Advances in Intelligent and Soft Computing
Abbreviated source title: Adv. Intell. Soft Comput.
Volume: 165 AISC
Monograph title: Advances in Technology and Management - Proceedings of the 2012
International Conference on Technology and Management, ICTAM 2012
Issue date: 2012
Pages: 525-530
Language: English
ISSN: 18675662
ISBN-13: 9783642296369
Conference name: 2012 International Conference on Technology and Management, ICTAM
2012
Conference location: Jeju, Jeju-Island, Korea, Republic of
Abstract: For the problem of quality of personnel training in China can not meet the needs of
economic development, so the study subject of the research is professional personnel training of
engineering profession of general institutes of higher education. The better training mode of
engineering profession of general institutes is proposed. And this training mode is not only to meet
the business, professional and student needs, but also the culture, teaching, teachers and students
all-round dock enterprises. Theory and teaching practice proves that the training model is
successful. © 2012 Springer-Verlag GmbH Berlin Heidelberg.
Main heading: Professional aspects
Controlled terms: Docking - Industry - Personnel training
Uncontrolled terms: Docking problems - Economic development - Engineering
profession - Higher education - Teaching practices - Training mode - Training
model
Classification code: 913 Production Planning and Control; Manufacturing - 912.4 Personnel
- 912 Industrial Engineering and Management - 911 Cost and Value Engineering; Industrial
Economics - 901.2 Education - 901.1 Engineering Professional Aspects - 672 Naval
Vessels
DOI: 10.1007/978-3-642-29637-6_68
Database: Compendex
58.
Title: The research of polarization phenomenon in blogosphere
Authors: Cui, Ying'an1, 2 ; Li, Xue3 ; Chen, Xiaogang4
Author affiliation: 1 School of Electronic and Information Engineering, Xi'an JiaoTong
University, Xi'an, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, China
3 International Business School of Shanxi Normal of University, Xi'an, China
4 School of Business and Administration Southwestern, University of Finance and Economics,
Chengdu, China
Corresponding author: Cui, Y. ([email protected])
Source title: Journal of Networks
Abbreviated source title: J. Netw.
Volume: 7
Issue: 9
Issue date: 2012
Pages: 1479-1485
Language: English
ISSN: 17962056
Publisher: Academy Publisher, P.O.Box 40,, OULU, 90571, Finland
Abstract: Opinion polarization in blogosphere is an special and important group behavior which
often foreshow the emergence of some significant public social events. In this paper, we first
analyze the original blog dissemination characteristics include dissemination networked, free
agenda-setting and against the spiral of silence phenomenon. Then, we construct a opinion
dissemination dynamic model with the method of reductionism and holism. We decompose the
blogosphere into different subnets according to the degree distribution, and build the basic
dynamic equations with the k-degree subnet, then extended to the whole network to study the
polarization phenomenon. After that, we point out the weakness of scale free network to depict the
blogosphere in brief and give a new novel model and simulate the process of the opinion
dissemination influenced by the composition of the initial opinion, the fixed opinion groups and
subjective mental preference of interactive groups. Empirical research shows that polarization will
surely happen, consensus is impossible in blogosphere. © 2012 ACADEMY PUBLISHER.
Main heading: Blogs
Controlled terms: Polarization - Topology
Uncontrolled terms: Blogospheres - Influence factors - Opinion dynamics Polarzization phenomenon - Topology model
Classification code: 711.1 Electromagnetic Waves in Different Media - 723 Computer
Software, Data Handling and Applications - 921.4 Combinatorial Mathematics, Includes
Graph Theory, Set Theory
DOI: 10.4304/jnw.7.9.1479-1485
Database: Compendex
59.
Title: The internet of things used in the intelligence intravenous transfusion system
Authors: Cui, Yingan1 ; Li, Xue2 ; Wang, Xuetong1
2 International Business School, Shaanxi Normal University, Xi'an, Shaanxi, China
Corresponding author: Cui, Y. ([email protected])
Volume: 198-199
Monograph title: Applied Mechanics, Mechatronics Automation and System Simulation
Issue date: 2012
Pages: 611-615
Language: English
ISSN: 16609336
E-ISSN: 16627482
Conference name: 2012 International Applied Mechanics, MechatronicsAutomation and System
Simulation Meeting, AMMASS 2012
Conference location: Hangzhou, China
Abstract: This paper introduce the primary architecture and principle of intravenous transfusion
device based on the internet of things particularly detailed the collaboration medical monitoring
platform, intelligent perception unit, Infusion monitoring service. Giving the program flow chart
of main program and critical code of five liquid queue speed-measuring method. This system can
satisfy the requirement of doctors for monitor and manage infusion process centralized. Therefore,
it is worthy of reference to implement in similar system. © (2012) Trans Tech Publications,
Switzerland.
Main heading: Internet
Controlled terms: Mechanics
Uncontrolled terms: Critical codes - Infusion process - Intelligent perception Internet of Things (IOT) - Monitoring platform - Monitoring services - Program flow
- Speed detection
- 723 Computer Software, Data Handling and Applications - 931.1 Mechanics
Database: Compendex
60.
Title: The empirical study of polarization in blog communication
Authors: Cui, Yingan1, 2 ; Li, Xue3 ; Song, Xin2
Author affiliation: 1 School of Electronic and Information Engineering, Xi'an JiaoTong
University, Xi'an, Shaanxi 710048, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi
710048, China
3 International Business School, Shaanxi Normal of University, Xi'an, Shaanxi 710062, China
Corresponding author: Cui, Y.
Source title: Proceedings - International Conference on Communication Systems and Network
Technologies, CSNT 2012
Abbreviated source title: Proc. - Int. Conf. Commun. Syst. Netw. Technol., CSNT
Monograph title: Proceedings - International Conference on Communication Systems and
Network Technologies, CSNT 2012
Issue date: 2012
Pages: 415-418
Language: English
ISBN-13: 9780769546926
Conference name: International Conference on Communication Systems and Network
Technologies, CSNT 2012
Conference location: Rajkot, Gujrat, India
Sponsor: Sergeant Infotech Private Limited
United States
Abstract: Polarization, one of the phenomenons emerging from blog communication, is affected
by multiple factors during its formation and evolution. This paper sets up the dynamic model of
blog communication based on social impact theory, uses empirical analysis to research three
aspects of social network, which are the composition of the initial opinion, the fixed opinion
groups and subjective mental preference of interactive groups. And the research result shows that
polarization is not only related to the structure of social network but more influenced by the
subjective mental preference of interactive groups. © 2012 IEEE.
Main heading: Economic and social effects
Controlled terms: Blogs - Communication systems - Group theory - Polarization
Uncontrolled terms: blogshpere - Empirical analysis - Empirical studies - Interactive
groups - Multiple factors - Opinion dynamics - Polarization phenomena - Research
results - Social impact - Social Networks
Classification code: 711.1 Electromagnetic Waves in Different Media - 716
Telecommunication; Radar, Radio and Television - 723 Computer Software, Data Handling
and Applications - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory 971 Social Sciences
DOI: 10.1109/CSNT.2012.96
Database: Compendex
61.
Title: Deformation and stress characteristics of high asymmetric CFRD and for measures
Authors: Dang, Fa-Ning1 ; Wang, Xue-Wu1, 2 ; Tian, Wei3 ; Xu, Shang-Jie4
2 Shanxi Water Resources and Hydropower Construction Supervision Company, Taiyuan
030002, China
3 Changan University, Xi'an 710061, China
4 Shandong Provincial Institute of Water Resources, Ji'nan 250013, China
Corresponding author: Dang, F.-N. ([email protected])
Source title: Shuili Xuebao/Journal of Hydraulic Engineering
Abbreviated source title: Shuili Xuebao
Volume: 43
Issue: 5
Pages: 602-608
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Publisher: China Water Power Press, no. 1 Xikang Road, Nanjing, 210024, China
Abstract: The stress and strain of high concrete face rockfill dam (CFRD) which was built on
steep slope, asymmetric and narrow-deep river valley was studied. The results show that uneven
settlement existed in rockfills because of asymmetric between left bank and right bank. Affected
by the arch effect of narrow deep valley, later settlement value of rockfills was still great. Because
of the effect of steep slope, the axial displacement of concrete panel and deformation gradient in
the right (the bank more steep side) was larger than that of left. Finally, a series of improvement
measures is proposed, such as adjusting the roller compaction parameters in different part of the
rockfills to reduce the uneven settlement value, fully compacting the rockfills with water to reduce
the later settlement value, appropriately adjusting concrete panel width and the vertical joint width
to reduce tensile stress of side concrete panel and decrease extrusion pressure of the middle
concrete panel.
Main heading: Rocks
Controlled terms: Concrete buildings - Concrete slabs - Deformation - Precast
concrete - Rock mechanics
Uncontrolled terms: Asymmetric coefficient - CFRD - Later settlement value Narrow deep coefficient - Uneven settlement
Classification code: 412 Concrete - 421 Strength of Building Materials; Mechanical
Properties - 422 Strength of Building Materials; Test Equipment and Methods - 481.1
Geology - 502.1 Mine and Quarry Operations
Database: Compendex
62.
Title: A structural parameter reflecting coupling action between shear stress and spherical stress
Authors: Deng, Guo-Hua1 ; Shao, Sheng-Jun2 ; Chen, Chang-Lu2 ; She, Fang-Tao2
Author affiliation: 1 Xi'an Metro Limited Liability Company, Xi'an 710018, China
2 Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Deng, G.-H. ([email protected])
Volume: 33
Issue: 8
Pages: 2310-2314
Language: Chinese
ISSN: 10007598
Abstract: Based on structure parameters of soil established by the theory of comprehensive
structure potential and the defects of structure parameters, a new structure parameter which is
stress ratio structure parameter is proposed, it can reflect the coupling action of shear stress and
spherical stress. Through theoretical analysis and triaxial test research, it is found that the stress
ratio structure parameter can consider the influence of both of shear stress and spherical stress on
soil structure, and its value no longer reach peak in the process of shearing which consist with the
traditional recognition of soil structure. Namely, it can reflect the soil structure more accurately
from the quantitative aspects.
Main heading: Spheres
Controlled terms: Shear stress - Soils
Uncontrolled terms: Soil structure - Spherical stress - Stress ratio - Structural
parameter - Structure parameter - Triaxial test
Classification code: 421 Strength of Building Materials; Mechanical Properties - 483.1 Soils
and Soil Mechanics - 631 Fluid Flow
Database: Compendex
63.
Title: Modified Cam-clay model of structured loess
Authors: Deng, Guo-Hua1 ; Shao, Sheng-Jun2 ; She, Fang-Tao2
Author affiliation: 1 Xi'an Metro Ltd., Xi'an 710018, China
2 Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Deng, G.-H. ([email protected])
Volume: 34
Issue: 5
Pages: 834-841
Language: Chinese
ISSN: 10004548
CODEN: YGXUEB
Abstract: The strength and deformation characteristics of natural geotechnical materials are
connected with the structure of soils. Based on the theoretical frame of comprehensive structure
potential, a structural parameter is introduced into the modified Cam-clay model, and the
mechanical characteristics of structured soils are forecast. Firstly, the relation between
compression and structure is analyzed, in other words, it is established that preconsolidation
pressure, compressive index and rebound index are related to the structural parameter. Secondly,
the strength features of the structured soils are analyzed, then the critical condition line varying
with structural parameter is put forward. Finally, by introducing the structural parameter into the
modified Cam-clay model, a structural model according to the strength and deformation
characteristics of natural geotechnical materials is developed. After preliminary validation, the
proposed model can accurately indicate the strength and deformation laws of structured soils.
Main heading: Geologic models
Controlled terms: Cams - Critical current density (superconductivity) - Deformation Model structures - Soils - Strength of materials
Uncontrolled terms: Comprehensive structure potential - Constitutive relations - Critical
state - Modified Cam-clay model - Structural parameter
Classification code: 701.1 Electricity: Basic Concepts and Phenomena - 601.3 Mechanisms
- 483.1 Soils and Soil Mechanics - 951 Materials Science - 481.1 Geology - 421
Strength of Building Materials; Mechanical Properties - 408 Structural Design - 422
Strength of Building Materials; Test Equipment and Methods
Database: Compendex
64.
Title: Influence of inflow rate of runoff on purification effectiveness of vegetative filter strip
Authors: Deng, Na1, 2 ; Li, Huaien1 ; Shi, Dongqing1 ; Wang, Lei1
Author affiliation: 1 Northwest Water Resources and Environment Ecology Key Laboratory,
Ministry of Education, Xi'an University of Technology, Xi'an, 710048, China
2 Department of Resource and Environment, Hunan Agricultural University, Changsha 410126,
China
Corresponding author: Li, H. ([email protected])
Source title: Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural
Engineering
Abbreviated source title: Nongye Gongcheng Xuebao
Volume: 28
Issue: 4
Issue date: February 15, 2012
Pages: 124-129
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Publisher: Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South,
Beijing, 100026, China
Abstract: Many factors affect the effectiveness of vegetative filter strip (VFS), and the
purification efficiency of VFS also varies from time to time in a rainfall runoff process. Thus, the
effects of inflow rate during storm-runoff on pollutants trapping by vegetative filter strips were
analyzed based on the measured data from field plot experiments in this paper. Results showed
that the purification effectiveness of VFS on suspended solids, total nitrogen, total phosphorus,
particulate nitrogen and particulate phosphorus concentration changed greatly with different
inflow rates. Furthermore, the effectiveness of VFS was more obvious along with smaller inflow
rate, and grass strip had the best purification effect compared with other strips. Comparing grain
diameter distribution at import and export section of each VFS, it showed more efficiency on
coarse particles trapping by VFS. Therefore, the deposition of coarse particles was one of main
mechanisms of pollutants removal as vegetation reduces flow velocity. The results of this study
could provide a scientific support for the application of integrated constructed vegetative filter
strips in northwest China.
Main heading: Purification
Controlled terms: Experiments - Phosphorus - Pollution - Runoff - Vegetation
Uncontrolled terms: Coarse particles - Field plot - Grain diameter - Grain diameter
analysis - Inflow rate - Measured data - NorthWest China - Particulate phosphorus
- Pollutants removal - Purification effect - Purification efficiency - Rainfall-runoff
process - Storm runoff - Suspended solids - Total nitrogen - Total phosphorus Vegetative filter strips
Classification code: 444.1 Surface Water - 454.2 Environmental Impact and Protection 802.3 Chemical Operations - 804 Chemical Products Generally - 821 Agricultural
Equipment and Methods; Vegetation and Pest Control - 901.3 Engineering Research
DOI: 10.3969/j.issn.1002-6819.2012.04.020
Database: Compendex
65.
Title: Modeling and control strategy of active tuned hybrid power filter
Authors: Deng, Yaping1 ; Tong, Xiangqian1
Corresponding author: Deng, Y. ([email protected])
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: In this paper, the circuit configuration of Active Tuned Hybrid Power Filter (ATHPF)
applied to high-voltage grid is presented and the operation principle of ATHPF is analyzed
theoretically by deducing its electrical model. A new detecting method of filter detuning based on
the difference of harmonic voltage across the inductor and the capacity of PPF is proposed to
overcome the shortcomings of the original based on the subtraction of harmonic phase. The
ATHPF simulation model conducted in PSIM is established and the simulation results show that
the proposed detuning method satisfies the requirement of ATHPF control system, and verify that
the ATHPF enables simultaneously to suppress the specific harmonic and eliminate multiple
dominant harmonics without affecting passive filter filtering effects at all other frequencies. ©
2012 IEEE.
Main heading: Active filters
Controlled terms: Computer simulation - Harmonic analysis
Uncontrolled terms: Circuit configurations - Detecting methods - Detuning method Detunings - Electrical models - Filtering effects - harmonic - Harmonic voltages High-voltage grid - Hybrid filters - Hybrid power filter - Modeling and control Simulation model - Specific harmonics
Classification code: 703.2 Electric Filters - 723.5 Computer Applications - 921.6
Numerical Methods
DOI: 10.1109/APPEEC.2012.6307262
Database: Compendex
66.
Title: Segregated ultrahigh molecular weight polyethylene composites filled with graphene
sheets and hybrid multi-walled carbon nanotubes
Authors: Di, Yingying1 ; Ren, Penggang2 ; Zhang, Qian2
Author affiliation: 1 The Faculty of Business Administration, Shannxi Industry Vocational
College, Xianyang 712000, China
2 The Faculty of Printing and Packaging Engineering, Xi'an University of Technology, Xi'an
710048, China
Corresponding author: Ren, P. ([email protected])
Source title: Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Abbreviated source title: Fuhe Cailiao Xuebao
Volume: 29
Issue: 4
Pages: 36-41
Language: Chinese
ISSN: 10003851
CODEN: FCXUEC
Publisher: Beijing University of Aeronautics and Astronautics (BUAA), 37 Xueyuan Rd.,
Haidian District, Beijing, 100083, China
Abstract: For the sake of comparing the different electricity conductivities of composite
materials when the UHMWPE filled singleness and mixed, graphene nanosheets
(GNS)-multi-walled carbon nanotubes (MWCNTs)/ultrahigh molecular weight polyethylene
(UHMWPE) composites with a segregated network structure were prepared by alcohol-assisted
dispersion, ultrasound and hydrazine. SEM and TEM results show that MWCNTs or GNS
homogeneously disperse around UHMWPE particle, and from a segregated conductive network
during the hot-pressing. It is found that the percolation threshold of GNS/UHMWPE composites
(0.059%, volume fraction)is much lower than that of MWCNTs/UHMWPE composites (0.148%,
volume fraction). At the same filler content, the electrical conductivity of GNS/UHMWPE
composites is much lower than that of the MWCNTs/UHMWPE composites (2.0×10-2 S/m, 1.0%,
mass fraction). The percolation threshold of GNS-MWCNTs/UHMWPE hybrid composites
(0.039%, volume fraction) is lower than that of composites filled with GNS and MWCNTs alone,
while the conductivity of GNS-MWCNTs/UHMWPE hybrid composites (1.0×10-2 S/m, 1.0%,
mass fraction) is similar to the MWCNTs/UHMWPE composites. The mechanical properties of
composites increase and then decrease with the increasing content of fillers.
Main heading: Ultrahigh molecular weight polyethylenes
Controlled terms: Electric conductivity - Fillers - Graphene - Mechanical properties
- Multiwalled carbon nanotubes (MWCN) - Percolation (computer storage) - Percolation
(fluids) - Percolation (solid state) - Volume fraction
Uncontrolled terms: Conductive networks - Electrical conductivity - Filler contents Graphene sheets - Hybrid composites - Mass fraction - Percolation thresholds Properties of composites - Segregated network - SEM and TEM
Classification code: 933 Solid State Physics - 815.1.1 Organic Polymers - 804 Chemical
Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 951 Materials
Science - 761 Nanotechnology - 701.1 Electricity: Basic Concepts and Phenomena 641.1 Thermodynamics - 631.1 Fluid Flow, General - 722.1 Data Storage, Equipment and
Techniques
Database: Compendex
67.
Title: Seismic research on high-level structures set tanks of different volume
Authors: Ding, Huaide1 ; Liu, Yunhe1
Author affiliation: 1 School of Civil Engineering and Architecture, Xi'An University of
Corresponding author: Ding, H. ([email protected])
Source title: Proceedings 2011 International Conference on Transportation, Mechanical, and
Electrical Engineering, TMEE 2011
Abbreviated source title: Proc. Int. Conf. Transp., Mech., Electr. Eng., TMEE
Monograph title: Proceedings 2011 International Conference on Transportation, Mechanical, and
Electrical Engineering, TMEE 2011
Issue date: 2011
Pages: 2202-2205
Language: English
ISBN-13: 9781457717017
Conference name: 2011 International Conference on Transportation, Mechanical, and Electrical
Engineering, TMEE 2011
Conference location: Changchun, China
United States
Abstract: It is known that the tanks, on the top of buildings, have some effect on controlling
vibrations of structures. this paper takes a 12 layer frame structure as an example, under the small
disturbance assumption, and by calculating disturbing with EL centro seismic wave and Taft
seismic wave, comparing time history analysis results of different volumes tanks, demonstrating
the controlling effects of tanks set on top of buildings. © 2011 IEEE.
Main heading: Seismic waves
Controlled terms: Electrical engineering - Tall buildings - Water tanks
Uncontrolled terms: Frame structure - High rise building - High-level structure shock controlling - Small disturbances - Time history analysis - volume
Classification code: 402 Buildings and Towers - 446.1 Water Supply Systems - 484
Seismology - 709 Electrical Engineering, General
DOI: 10.1109/TMEE.2011.6199656
Database: Compendex
68.
Title: Simulation of UT phased array techniques with matrix probes
Authors: Ding, Pan1 ; Liu, Gangtian2, 3 ; Ji, Xiaomin2
Author affiliation: 1 Institute of Modern Manufacturing Engineering, Zhejiang University,
Hangzhou, China
2 Xi'An University of Technology, Xi'an, China
3 Henan University of ScienceandTechnology, Luoyang, China
Corresponding author: Ding, P. ([email protected])
Volume: 112
Monograph title: Proceedings of the 2011 International Conference on Informatics, Cybernetics,
and Computer Engineering (ICCE2011) November 19-20, 2011, Melbourne, Australia: Volume 3:
Computer Networks and Electronic
Issue date: 2011
Pages: 151-157
Language: English
ISSN: 18675662
ISBN-13: 9783642251931
Abstract: This paper presents new tools dedicated to matrix settings in terms of trajectories,
multiple delay laws settings which have been recently gathered in the simulation platform
software, allow computing delay laws, beam propagation, flaw scattering, as well as imaging tools.
Those different features are available for simple or more sophisticated patterns. Those skills are
illustrated with experimental and simulated configurations for complex inspection cases. ©
Springer-Verlag Berlin Heidelberg 2011.
Main heading: Computer simulation
Controlled terms: Antenna phased arrays - Computer software
Uncontrolled terms: Beam propagation - Data reconstruction - Imaging tools - matrix
- Multiple delays - Simulation platform - UT Simulation
Classification code: 716 Telecommunication; Radar, Radio and Television - 723 Computer
Software, Data Handling and Applications - 723.5 Computer Applications
DOI: 10.1007/978-3-642-25194-8_18
Database: Compendex
69.
Title: Study on an improved single-phase harmonic current detection algorithm
Authors: Ding, Zujun1 ; Wang, Sen2 ; Guo, Zhen2 ; Zeng, Guang2
Author affiliation: 1 Faculty of Electronic and Electrical Engineering, Huaiyin Institute of
Technology, Huai'an, China
2 Electrical Department, Xi'an University of Technology, Xi'an, China
Corresponding author: Ding, Z. ([email protected])
Source title: Proceedings - 2012 International Conference on Computer Distributed Control and
Intelligent Environmental Monitoring, CDCIEM 2012
Abbreviated source title: Proc. - Int. Conf. Comput. Distrib. Control Intelligent Environ. Monit.,
CDCIEM
Monograph title: Proceedings - 2012 International Conference on Computer Distributed Control
and Intelligent Environmental Monitoring, CDCIEM 2012
Issue date: 2012
Pages: 655-658
Language: English
ISBN-13: 9780769546391
Conference name: 2012 International Conference on Computer Distributed Control and
Conference location: Zhangjiajie, Hunan, China
Sponsor: Central South University; Hebei University of Technology
United States
Abstract: Bases on present harmonic detection algorithms, single-phase load current is
decomposed and a novel singlephase current detection algorithm, which is simple, reliable,
response quickly and favors the hardware realization, is proposed, in order to solve complexity of
algorithm and slow response of common used single-phase harmonic detection methods.
Meanwhile, as the method need to use low pass filter, an improved method is is analysed. By
increasing time delay unit, the effect of 2nd harmonic was eliminated,and the cutoff frequency of
the low-pass filter was increased without adding the filter order. The response time of improved
detecetionwas shorten about half period. Correctness and validity of the proposed method were
verified through simulating and experiment © 2012 IEEE.
Controlled terms: Cutoff frequency - Electric current measurement - Environmental
engineering - Harmonic analysis - Low pass filters
Uncontrolled terms: Active power Filter - Complexity of algorithm - Current detection
algorithm - Hardware realization - Harmonic current detection - Harmonic detection Improved methods - Single-phase - Single-phase loads - Time delay units
Classification code: 454 Environmental Engineering - 703.1 Electric Networks - 703.2
Electric Filters - 921.6 Numerical Methods - 942.2 Electric Variables Measurements
DOI: 10.1109/CDCIEM.2012.160
Database: Compendex
70.
Title: Control of three-phase voltage pulse-width-modulation inverters by back-stepping design
approach
Authors: Dong, Feng-Bin1 ; Zhong, Yan-Ru1
Author affiliation: 1 College of Automation and Information Engineering, Xi'an University of
Technology, Shaanxi Xi'an 710048, China
Corresponding author: Dong, F.-B. ([email protected])
Source title: Kongzhi Lilun Yu Yingyong/Control Theory and Applications
Abbreviated source title: Kong Zhi Li Lun Yu Ying Yong
Volume: 29
Issue: 7
Issue date: July 2012
Pages: 928-932
Language: Chinese
ISSN: 10008152
CODEN: KLYYEB
Publisher: South China University of Technology, Guangzhou, 510640, China
Abstract: The three-phase voltage pulse-width-modulation (PWM) inverter is a time-varying,
multi-modal nonlinear system, for which we build the mathematical model with a switching
function. By introducing the average switchingperiod operator, we transform the discrete-time
system to a continuous-time system with a second order nonlinear model and a strict parameter
feedback. By using back-stepping design approach, we select step by step the virtual control
variable and Lyapunov function; so that each state variable has the appropriate asymptotic features
and the whole system under a large disturbance has a global asymptotic stability. After the general
expression of the feedback control law is determined, the specific feedback control law of the
three-phase voltage source PWM inverter system is obtained by putting parameters into this
expression. The effectiveness of the control method is validated by simulation experiments.
Controlled terms: Control theory - Counting circuits - Digital control systems Discrete time control systems - Electric potential - Feedback control - Lyapunov
functions - Mathematical models - Modulation - Nonlinear feedback - Nonlinear
systems - Pulse width modulation - Switching functions
Uncontrolled terms: Backstepping design - Control methods - Discrete time system Feedback control law - General expression - Global asymptotic stability - Large
disturbance - Multi-modal - Non-linear model - PWM inverter - Second orders Simulation experiments - State variables - Three-phase voltages - Time varying Virtual control
Classification code: 408 Structural Design - 701.1 Electricity: Basic Concepts and
Phenomena - 713.4 Pulse Circuits - 716 Telecommunication; Radar, Radio and Television
- 731.1 Control Systems - 921 Mathematics
Database: Compendex
71.
Title: Application of backstepping for three-phase four-leg inverter
Authors: Dong, Feng-Bin1 ; Zhong, Yan-Ru1
Corresponding author: Dong, F.-B.
Source title: Dianji yu Kongzhi Xuebao/Electric Machines and Control
Abbreviated source title: Dianji yu Kongzhi Xuebao
Volume: 16
Issue: 4
Pages: 30-35
Language: Chinese
ISSN: 1007449X
Publisher: Editorial Department of Electric Machines and Control, 23 Sandadongli Road, Harbin,
150040, China
Abstract: In order to improve the control performance of the three-phase four-leg inverter, the
back-stepping design approach was proposed to apply to inverter control. For the discrete,
multi-modal nonlinear systems, the mathematical model was established with the switching
function and average switch period operator. By using back-stepping design approach, the virtual
control variable and Lyapunov function were selected step by step, so that all inductor current and
capacitor voltage variables have appropriate asymptotic features. The output tracking of the
inverter for the given signals is realized. The global asymptotic stability of the system is
guaranteed. The simulation results show that the system has good static and dynamic performance.
Main heading: Backstepping
Controlled terms: Lyapunov functions - Mathematical models - Models - Nonlinear
systems - Switching functions
Uncontrolled terms: Backstepping design - Capacitor voltages - Control performance Global asymptotic stability - Inductor currents - Inverter control - Multi-modal -
Output-tracking - Static and dynamic performance - Three-phase four-leg inverter
Virtual control
Classification code: 902.1 Engineering Graphics - 921 Mathematics
Database: Compendex
-
72.
Title: Application of gain scheduled PID control in the lithography positioning system
Authors: Dong, Guirong1
Author affiliation: 1 The Faculty of High Vocational Education of Xi'an University of
Technology, Xi'an, Shaanxi, 710082, China
Corresponding author: Dong, G. ([email protected])
Volume: 220-223
Monograph title: Advances in Manufacturing Technology
Issue date: 2012
Pages: 1752-1756
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037855034
Abstract: According to the perturbation in lithography positioning control system, a novel gain
scheduled PID controller using a root mean square (RMS) signal is proposed. Perturbation is also
referred as the stage hunting, and the positioning control system will be very weak against small
disturbances such as electrical noise or even structural vibration of the building in which the stage
is installed. The gain scheduled PID controller is used to minimize the stage hunting and
simultaneously maximize the immunity to disturbances. Simulations results verify the
effectiveness of the gain scheduled PID controller for the positioning control in the lithography
stage, as compared with the traditional PID controller. © (2012) Trans Tech Publications,
Switzerland.
Main heading: Three term control systems
Controlled terms: Design - Electric control equipment - Lithography - Structural
dynamics
Uncontrolled terms: Electrical noise - Perturbation - PID controllers - Positioning
control - Positioning control system - Positioning system - Root Mean Square Small disturbances - Structural vibrations
Classification code: 408 Structural Design - 714.2 Semiconductor Devices and Integrated
Circuits - 731.1 Control Systems - 732.1 Control Equipment
Database: Compendex
73.
Title: Analysis on water quality of severely polluted urban river, Zaohe River as an example
Authors: Dong, Wen1 ; Li, Huai-En1 ; Li, Jiake1 ; Qin, Yaomin1 ; Zhu, Lei1
Author affiliation: 1 Key Laboratory of Northwest Water Resources, Environment and Ecology,
Ministry of Education Xi-an University of Technology, Xi-an 710048, China
Corresponding author: Dong, W. ([email protected])
Volume: 31
Issue: 4
Pages: 72-77
Language: Chinese
ISSN: 10031243
Abstract: The Zaohe River is a river in Xian city for waste water discharge and flood discharge.
Its water is contaminated by point source pollution (PSP) and to some extent, also by non-point
source pollution (NSP). To quantify water quality in this river, we monitored water flow and water
quality at a control section of Caotan station from Apr., 2010 to Oct., 2011, including contents of
COD, TP, NH3-N, NO3-N and TN. The results are summarized as follow. 1) At Caotan, the
concentrations of SS, COD, NH3-N, NO3-N and TN exceeded those in the surface water quality
standard V, and the mean concentrations in flood periods were lower than those in non-flood
periods. 2) The pollutant concentrations at Caotan were lower in flood periods than nonflood
periods. 3) From upstream to downstream along the river, the COD concentration was increasing,
the total phosphorus, ammonia nitrogen and total nitrogen were increasing first and then
decreasing, while the change in nitrate nitrogen was little. The content of Cr among heavy metals
was the highest and its mean concentration took an increasing trend along the river. 4) In flood
periods, NSP load was lower than PSP load, and the NSP load ratios of SS, COD, TP, NH3-N,
NO3-N and TN were 14%, 2.0%, 5.1%, 6.0%, 7.4% and 4.2%, respectively. 5) At present, PSP
issue of the Zaohe River remains a focus of pollution control, but NSP should not be ignored.
Controlled terms: Floods - Heavy metals - Pollution - Rivers - Water pollution
control - Water quality
Uncontrolled terms: Ammonia nitrogen - Control sections - Flood discharge - Flood
periods - Load ratio - Mean concentrations - Nitrate nitrogen - Non-point source
pollution - Point source pollution - Pollutant concentration
- Pollutant loads Total nitrogen - Total phosphorus - Urban river - Wastewater discharge - Water
flows
Classification code: 407.2 Waterways - 453 Water Pollution - 453.2 Water Pollution
Control - 454.2 Environmental Impact and Protection - 531 Metallurgy and Metallography
- 914.1 Accidents and Accident Prevention
Database: Compendex
74.
Title: 2D simulation of flow around two parallel square cylinders
Authors: Dong, X.F.1 ; Liu, Y.L.1
Author affiliation: 1 Electronic Engineering Limit Company of China, Xi'an University of
Technology, Xi'an, 710048, China
Corresponding author: Dong, X.F.
Source title: 2012 2nd International Conference on Consumer Electronics, Communications and
Networks, CECNet 2012 - Proceedings
Abbreviated source title: Int. Conf. Consum. Electron., Commun. Networks, CECNet - Proc.
Monograph title: 2012 2nd International Conference on Consumer Electronics, Communications
and Networks, CECNet 2012 - Proceedings
Issue date: 2012
Pages: 751-754
Language: English
ISBN-13: 9781457714153
Conference name: 2012 2nd International Conference on Consumer Electronics,
Communications and Networks, CECNet 2012
Conference date: April 21, 2012 - April 23, 2012
Conference location: Three Gorges, China
Sponsor: IEEE
United States
Abstract: This paper is concerned with a mathematical model for numerical simulation of 2D
flow around two parallel square cylinders. The governing water equations are solved by a implicit
bidiagonal numerical scheme, based on the MacCormack's predictor-corrector technique. The
mathematical model is used to numerically compute the water flow around two parallel square
cylinders in a rectangular open channel, which shows that the proposed method is accurate,
reliable and effective. © 2012 IEEE.
Main heading: Cylinders (shapes)
Controlled terms: Computer simulation - Consumer electronics - Mathematical models
Uncontrolled terms: 2D flow - 2D simulations - Bidiagonal - Implicit schemes Numerical scheme - Open channels - Predictor corrector - Square cylinders - Water
equations - Water flows
Classification code: 408.2 Structural Members and Shapes - 715 Electronic Equipment,
General Purpose and Industrial - 723.5 Computer Applications - 913 Production Planning
and Control; Manufacturing - 921 Mathematics
DOI: 10.1109/CECNet.2012.6202199
Database: Compendex
75.
Title: Research progress of coloring aluminum pigments by corrosion protection method
Authors: Du, B.1 ; Zhou, S.S.1 ; Li, N.L.1
Author affiliation: 1 Institute of Printing and Packing Engineering, Xi'an University of
Technology, Xi'an Shaanxi. 710048, China
Corresponding author: Du, B. ([email protected])
Volume: 10
Issue: PART A
Issue date: 2011
Pages: 807-813
Language: English
E-ISSN: 18780296
Abstract: With the increasing of the aesthetic value of people and pursue of colorful, coloring
aluminum pigments will have broad application prospects. Chromatic sliver printing ink is a kind
of flake aluminum pigments which has had the surface modification treatment. It has metallic
luster of aluminum powder and chromatic colors at the same time. Chromatic aluminum pigments
is widely used in automobile, coatings, printing ink, printing and dyeing, etc industries and fields
such as art adornment because of its characteristics such as chromatic color, strong corrosion
resistance, good insulation, permanent, strong mental luster, low cost and so on. So preparing a
new kind of chromatic silver plasma ink is of great significance. The reporting of domestic and
international documents of coloring aluminum pigments by corrosion protection methods mainly
are adsorptive, sedimentation and coating method. © 2011 Published by Elsevier Ltd.
Main heading: Aluminum coatings
Controlled terms: Aluminum - Coatings - Coloring - Corrosion protection Corrosion resistance - Environmental engineering - Printing
Uncontrolled terms: Adsorptive - Aesthetic value - Aluminum Pigments - Aluminum
powders - Broad application - Chromatic colors - Coating Method - Coating
methods - Corrosion protection method - Low costs - Metallic luster - Printing
and dyeing - Research progress
Classification code: 813.2 Coating Materials - 813.1 Coating Techniques - 745.1 Printing
- 541.1 Aluminum - 539.2 Corrosion Protection - 539.1 Metals Corrosion - 454
Environmental Engineering
DOI: 10.1016/j.proenv.2011.09.130
Database: Compendex
76.
Title: Assembly and release behavior of allopurinol intercalated Zn/Al-NO3-LDH composite
Authors: Du, Bao-Zhong1 ; Tai, Wei1 ; Luo, Wei1 ; Peng, Zhen-Guo1
Author affiliation: 1 Department of Applied Chemistry, Xi'an University of Technology, Xi'an
710048, China
Corresponding author: Du, B.-Z. ([email protected])
Source title: Wuji Cailiao Xuebao/Journal of Inorganic Materials
Abbreviated source title: Wuji Cailiao Xuebao
Volume: 26
Issue: 12
Pages: 1293-1298
Language: Chinese
ISSN: 1000324X
CODEN: WCXUET
Abstract: Allopurinot intercalated Zn/Al-NO3-LDH composite materials were prepared by
coprecipitation and ion exchange methods. It was found by XRD, FT-IR and TG-DTA analysis
that allopurinol were intercalated into the LDH layers and formed a supramolecular structure in
the reaction with laminate. The structure could improved allopurinol acid resistance and thermal
stability. The allopurinol intercalated LDH preparaed by coprecipitation method has an excellent
sustained-release performance. It was supposed that the intercalation capacity of organic
molecules was increased by a Sol-Gel intermediate which was easy for the objects to be
ion-exchanged and embedded during the organic molecules intercalating into the LDH layers by
coprecipitation method.
Main heading: Nanocomposite films
Controlled terms: Acid resistance - Coprecipitation - Intercalation - Ion exchange Laminated composites
Uncontrolled terms: Allopurinol - Composite - Coprecipitation method - Intercalation
capacity - Ion-exchange methods - LDH - Organic molecules - Release behaviors
- Supramolecular structure - Sustained-release
- TG-DTA analysis - XRD
Classification code: 415 Metals, Plastics, Wood and Other Structural Materials - 712.1
Semiconducting Materials - 801.4 Physical Chemistry - 802.2 Chemical Reactions 802.3 Chemical Operations
DOI: 10.3724/SP.J.1077.2011.01293
Database: Compendex
77.
Title: Character-level system combination: An empirical study for English-to-Chinese spoken
language translation
Authors: Du, Jinhua1
Author affiliation: 1 Faculty of Automation and Information Engineering, Xi'an University of
Technology, Xi'an, Shaanxi, China
Corresponding author: Du, J. ([email protected])
Source title: Proceedings - 2011 International Conference on Asian Language Processing, IALP
2011
Abbreviated source title: Proc. - Int. Conf. Asian Lang. Process., IALP
Monograph title: Proceedings - 2011 International Conference on Asian Language Processing,
IALP 2011
Issue date: 2011
Pages: 181-184
Language: English
ISBN-13: 9780769545547
Conference name: 2011 International Conference on Asian Language Processing, IALP 2011
Conference location: Penang, Malaysia
United States
Abstract: This paper proposes a character-level system combination strategy for English Chinese spoken language translation. For languages like Chinese that the word boundaries are not
orthographically marked, word segmentation which segments a Chinese sentence into a sequence
of words, is often required for many Natural Language Processing tasks. In this paper we evaluate
the impact of segmentation (spoken data) on the performance of system combination, and show
that using inappropriate segmentation in system combination can result in inferior performance
compared to single systems. We further demonstrate that using characters as basic translation unit
in system combination on IWSLT ASR translation task leads to significant gains in translation
quality in terms of BLEU and NIST scores. © 2011 IEEE.
Main heading: Translation (languages)
Controlled terms: Computational linguistics - Natural language processing systems
Uncontrolled terms: Character-level - Chinese sentence - Empirical studies - NAtural
language processing - Performance of systems - Spoken language translation - System
combination - Translation quality - Translation unit - Word segmentation
Classification code: 721.1 Computer Theory, Includes Formal Logic, Automata Theory,
Switching Theory, Programming Theory - 723.2 Data Processing and Image Processing 723.5 Computer Applications
DOI: 10.1109/IALP.2011.47
Database: Compendex
78.
Title: A selection methods of feature attributes based on RS-SVM
Authors: Duan, Gonglong1 ; Liu, Peng1 ; Liu, Runsheng1 ; Wei, Long1
Xi'an, 710054, China
Corresponding author: Duan, G.
Source title: Proceedings - International Conference on Natural Computation
Abbreviated source title: Proc. Int. Conf. Nat. Comput.
Monograph title: Proceedings - 2012 8th International Conference on Natural Computation,
ICNC 2012
Issue date: 2012
Pages: 114-117
Language: English
ISSN: 21579555
ISBN-13: 9781457721311
Conference name: 2012 8th International Conference on Natural Computation, ICNC 2012
Sponsor: Chongqing University of Posts and Telecommunications
United States
Abstract: In the pattern recognition system, when selecting the optimal set of attributes, we need
a lot of features from the screening properties, so often there will be omissions, therefore, to use
the rough set (RS) on the support vector machine (SVM) for encapsulation method of screening
set of attributes, the use of RS and SVM to find the optimal combination of the characteristics of
attribute combinations. © 2012 IEEE.
Main heading: Support vector machines
Controlled terms: Optimization - Pattern recognition systems - Rough set theory
Uncontrolled terms: encapsulate - Encapsulation methods - feature attributes Optimal combination - Optimal sets - Rough set - Selection methods
Software, Data Handling and Applications - 921.4 Combinatorial Mathematics, Includes
Graph Theory, Set Theory - 921.5 Optimization Techniques
DOI: 10.1109/ICNC.2012.6234532
Database: Compendex
79.
Title: Study of voltage stability in grid-connected large wind farms
Authors: Duan, Jiandong1 ; Li, Rui1 ; Lin, An2
Xi'an, Shaanxi Province, China
2 School of Statistics, Xi'An University of Finance and Economics, Xi'an, Shaanxi Province,
China
Corresponding author: Duan, J. ([email protected])
Volume: 433-440
Issue date: 2012
Pages: 1794-1801
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Abstract: Squirrel-cage induction generator (SCIG), as its structural and economic advantages,
has been widely utilized in large wind farms in China. However, the large wind farm composed of
induction generators will cause obvious problems to the power system stability due to the
dependency on reactive power. At the same time, Doubly-fed induction generator (DFIG), as a
new type of wind turbine generator, has excellent dynamic characteristics for operation of wind
farms. With the increase in penetration of wind power in power systems, more and more wind
farms will use both SCIG and DFIG. In this case, the dynamic characteristic of wind farm on
power systems is becoming an important issue especially in terms of the voltage stability. This
article is to show by means of simulations the dynamic performance of wind farm linked to power
system under the circumstances of network disturbances. Furthermore, the interaction between the
SCIGs and DFIGs has also been investigated. A detailed model of wind farms is presented through
the plat root of MATLAB/SIMULINK. The simulation results demonstrate that the DFIG
applications will largely improve the dynamic performance of wind farm in certain conditions, if
the DFIGs could be applied reasonably, the voltage stability of the wind farm will be largely
improved and even low voltage ride through(LVRT) characteristic of SCIGs, which may be a good
solution to reduce the high dependence of costly reactive power compensation equipment(Some
flexible AC transmission systems devices like SVC, STATCOM) to some extent. © (2012) Trans
Tech Publications, Switzerland.
Main heading: Wind power
Controlled terms: AC generator motors - Asynchronous generators - Computer
simulation - Dynamic models - Electric fault currents - Electric power transmission Electric utilities - Farms - Information technology - Materials science - Power
electronics - Power transmission - Reactive power - System stability - Turbines Voltage control - Voltage stabilizing circuits
Uncontrolled terms: Detailed models - Doubly-fed induction generator - Dynamic
characteristics - Dynamic performance - Economic advantages - Flexible AC
transmission systems devices - Grid-connected - Low-voltage ride-through - Network
disturbances - Power system stability - Reactive power compensation - Squirrel cage
induction generators - Statcom - Wind farm
Classification code: 951 Materials Science - 921 Mathematics - 821 Agricultural
Equipment and Methods; Vegetation and Pest Control - 731.3 Specific Variables Control 723.5 Computer Applications - 961 Systems Science - 713.5 Electronic Circuits Other
Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 705.2.1 AC
Generators - 615.8 Wind Power (Before 1993, use code 611 ) - 612.3 Gas Turbines and
Engines - 602.2 Mechanical Transmissions - 706 Electric Transmission and Distribution
Database: Compendex
80.
Title: Level set method for topological optimization of the naiver-stokes fluid flow
Authors: Duan, Xian-Bao1, 2 ; Qian, Fu-Cai2 ; Qin, Xin-Qiang1
Author affiliation: 1 School of Sciences, Xi'an University of Technology, Xi'an, China
China
Corresponding author: Duan, X.-B. ([email protected])
Volume: 182-183
Monograph title: Applied Mechanics and Mechatronics Automation
Issue date: 2012
Pages: 1668-1672
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854266
Conference name: 2012 International Applied Mechanics, Mechatronics Automation
Symposium, IAMMAS 2012
Conference location: Shenyang, Liaoning, China
Abstract: This paper presents a general algorithm for topological optimization of the
incompressible Navier-Stokes fluid flow based on a level set method. This is a direct extension of
our previous work on Stokes flow of such problems. First we obtain the shape sensitivity analysis
using the material derivative concept and adjoint variable technique, and then we couple the shape
sensitivity analysis result into the level set function as the advection velocity. Since the level set
method is implemented in an Euleran framework, the computational cost of the proposed
algorithm is moderate. A Benchmark example is provided to illustrate the efficiency and validity
of this method. © (2012) Trans Tech Publications, Switzerland.
Main heading: Level measurement
Controlled terms: Algorithms - Drop breakup - Flow of fluids - Optimization Sensitivity analysis - Topology
Uncontrolled terms: Adjoint variables - Computational costs - Flow based Incompressible Navier-Stokes - Level set functions - Level Set method - Material
derivative - Navier-Stokes problem - Shape sensitivity analysis - Stokes flows Topological optimization
Classification code: 723 Computer Software, Data Handling and Applications - 921
Mathematics - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids
- 943.2 Mechanical Variables Measurements
Database: Compendex
81.
Title: Organic field-effect transistors based on 3,7-bis[5-(4-n-hexylphenyl)-2thienyl]dibenzothiophene oligomer
Authors: Duan, Zongfan1, 2 ; Yanagi, Yiuchiro1 ; Ohuchi, Hirokuni1 ; Takayanagi, Yutaro1 ;
Zhao, Gaoyang2 ; Nishioka, Yasushiro1
Author affiliation: 1 Nihon University, College of Science and Technology, Narashinodai,
Funabashi, Chiba 2748501, Japan
2 Xi'an University of Technology, School of Materials Science and Engineering, Xi'an, Shaanxi
710048, China
Corresponding author: Duan, Z.
Source title: Proceedings of the 19th International Workshop on Active-Matrix Flatpanel
Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2012
Abbreviated source title: Proc. Int. Workshop Active-Matrix Flatpanel Displays Devices - TFT
Technol. FPD Mater., AM-FPD
Monograph title: Proceedings of the 19th International Workshop on Active-Matrix Flatpanel
Displays and Devices - TFT Technologies and FPD Materials, AM-FPD 2012
Issue date: 2012
Pages: 195-198
Language: English
ISBN-13: 9781467303996
Conference name: 19th International Workshop on Active-Matrix Flatpanel Displays and
Devices - TFT Technologies and FPD Materials, AM-FPD 2012
Conference location: Kyoto, Japan
Sponsor: The Japan Society of Applied Physics; The Inst. Electron. Inf. Commun. Eng.; The
Institute of Image Information and Television Engineers; The Institute of Electrical Engineers of
Japan; The Chemical Society of Japan
United States
Abstract: The structures and the morphologies of the vacuum-thermal deposited films based on a
new phenylene-thiophene oligomer, 3,7-bis[5-(4-n-hexylphenyl)-2- thienyl]dibenzothiophene
(37HPTDBT), have been characterized. The organic field-effect transistors (OFETs) with thin
37HPTDBT films exhibited high mobilities ranging from 0.06-0.3 cm2/Vs. © 2012 JSAP.
Main heading: Flat panel displays
Controlled terms: Oligomers - Organic field effect transistors - Thin film transistors Thiophene
Uncontrolled terms: Deposited films - Dibenzothiophenes - High mobility - Thienyl
Classification code: 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical
Devices and Systems - 804 Chemical Products Generally - 804.1 Organic Compounds
Database: Compendex
82.
Title: Organic field-effect transistors based on two phenylene-thiophene oligomer derivatives
with a biphenyl or fluorene core
Authors: Duan, Zongfan1, 2 ; Hu, Dengwei3 ; Ohuchi, Hirokuni1 ; Zhao, Maiqun2 ; Zhao,
Gaoyang2 ; Nishioka, Yasushiro1
Author affiliation: 1 College of Science and Technology, Nihon University, Narashinodai,
Funabashi, Chiba 2748501, Japan
2 School of Materials Science and Engineering, Xi'An University of Technology, Xi'an, Shaanxi
710048, China
3 Department of Chemistry and Chemical Engineering, Baoji University of Arts and Science, 1
Gaoxin Road, Baoji, Shaanxi 721013, China
Corresponding author: Duan, Z. ([email protected])
Source title: Synthetic Metals
Abbreviated source title: Synth Met
Volume: 162
Issue: 13-14
Pages: 1292-1298
Language: English
ISSN: 03796779
CODEN: SYMEDZ
Abstract: The synthesis and full characterization are described of two phenylene-thiophene
oligomer derivatives, 2,7-bis[5-(4-n-hexylphenyl)-2-thienyl] fluorene (HPTFTPH) and
4,4′-bis[5-(4-n-hexylphenyl)-2-thienyl]biphenyl (HPTPPTPH), which are based on a structural
combination of a fluorene or biphenyl core, thienyl units, and end-cap hexylphenyl groups.
Remarkable shifts in the UV-vis and photoluminescence spectra of thin films relative to their
solutions indicate the existence of strong intermolecular π-π interactions in the solid state of the
two oligomers. In addition, relatively large energy gaps and low highest occupied molecular
orbital energy levels imply that the two oligomers are promising and durable semiconducting
materials. Thin-film organic field-effect transistor devices based on the two oligomers show good
p-type performances with high hole mobilities. The highest mobility (0.20 cm 2/V s) was obtained
for the HPTPPTPH oligomer with biphenyl core. © 2012 Elsevier B.V. All rights reserved.
Main heading: Oligomers
Controlled terms: Electron energy levels - Organic field effect transistors Photoluminescence - Quantum chemistry - Semiconducting organic compounds Thiophene
Uncontrolled terms: Fluorenes - Highest occupied molecular orbital energy levels P-type - Photoluminescence spectrum - Semiconducting materials - Structural
combination - Thienyl
Classification code: 932 High Energy Physics; Nuclear Physics; Plasma Physics - 804.1
Organic Compounds - 804 Chemical Products Generally - 933 Solid State Physics 801.4 Physical Chemistry - 714.2 Semiconductor Devices and Integrated Circuits - 712.1.2
Compound Semiconducting Materials - 741.1 Light/Optics
DOI: 10.1016/j.synthmet.2012.05.002
Database: Compendex
83.
Title: A novel 2T2R 4-DOF parallel manipulator
Authors: Fan, Caixia1, 3 ; Liu, Hongzhao1 ; Yuan, Gexia1, 4 ; Zhang, Yanbin2
Author affiliation: 1 Xi'an University of Technology, Department of Mechanical and Precision
Instrumental Engineering, Xi'an, Shan'xi, China
2 Henan University of Science and Technolog, Department of Electromechanical Engineering,
Luo'yang, Hen'an, China
3 Jiaozuo University, Department of Electromechanical Engineering, Jiao'zuo,He'nan, China
4 Baoji University of Arts and Sciences, Mechanical and Electrical Institute, Baoji, Shan'xi,
China
Corresponding author: Fan, C.
Source title: Proceedings - 2011 4th International Symposium on Knowledge Acquisition and
Modeling, KAM 2011
Abbreviated source title: Proc. - Int. Symp. Knowl. Acquis. Model., KAM
Monograph title: Proceedings - 2011 4th International Symposium on Knowledge Acquisition
and Modeling, KAM 2011
Issue date: 2011
Pages: 5-8
Language: English
ISBN-13: 9780769545479
Conference name: 2011 4th International Symposium on Knowledge Acquisition and Modeling,
KAM 2011
Conference location: Sanya, China
United States
Abstract: A novel four-degree-of-freedom (DOF) parallel manipulator (PM) with
two-translations and two-rotations (2T2R) is presented. The manipulator has four limbs containing
two adjacent RPU limbs and two adjacent SPS limbs, connecting the base to the moving platform.
Using the constraint screw theory, the constraint and motion of the manipulator are analyzed, and
furthermore the singular configuration is carefully discussed. The manipulator can be developed
for the 4-axis parallel machine tool, the damping device, the damping device, the vibrating screen
and so on. © 2011 IEEE.
Main heading: Manipulators
Controlled terms: Damping - Kinematics - Knowledge acquisition - Screws
Uncontrolled terms: Damping device - Four degree of freedom - Moving platform Parallel machine tool - Parallel manipulators - screw theory - Singular configurations
Classification code: 605 Small Tools and Hardware - 723.4 Artificial Intelligence - 731.5
Robotics - 931.1 Mechanics
DOI: 10.1109/KAM.2011.9
Database: Compendex
84.
Title: Simulation of simplified three-dimensional space flow velocity field in reservoir on the
condition of unsteady flow and its application
Authors: Fan, Shiping1 ; Yang, Jianming2 ; Feng, Minquan1 ; Zheng, Bangmin3
Ecology of Education Ministry, Xi'an University of Technology, Xi'an 710048, China
2 Construction and Administration Bureau of Zhongbuyinhuang Project, Taiyuan 030012, China
3 School of Water Resource and Hydropower, Wuhan University, Wuhan 430072, China
Corresponding author: Fan, S. ([email protected])
Volume: 203
Monograph title: Review of Modern Engineering Solutions for the Industry
Issue date: 2012
Pages: 514-518
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854921
Conference name: 2012 International Conference on Mechatronic Systems and Automation
Systems, MSAS 2012
Sponsor: Information Technology and Industrial Engineering Research Center
Abstract: In view of the complexity of the conventional simulation calculation method of
three-dimensional flow field for the reservoir, and to analysis of the change of the reservoir's flow
field in flood period, in this paper, based on the unsteady flow numerical calculation, the
simulation method for three-dimensional space flow velocity field of the reservoir in flood period
was studied and applied to the Wenyuhe Reservoir. First refining the actual extraction of grid, and
then having an unsteady flow numerical calculation for the reservoir, finally through layering and
stripping the grid, three-dimensional space flow velocity field the reservoir on the condition of
unsteady flow has been studied. The results showed that the reservoir velocity along the flow
direction is becoming smaller, and surface velocity is fast; with the flow increase gradually, the
unsteady flow has a great effect on the flow field of the reservoir's concave bank. The grid can at
will encryption, so the calculation precision can be effectively controlled and the process of
simulation is easy to be programmed. The research results can simplify the complexity of the
reservoir for three-dimensional numerical simulation, and up to providing theoretical support for
reservoir flood control. © (2012) Trans Tech Publications, Switzerland.
Main heading: Reservoirs (water)
Controlled terms: Automation - Flood control - Floods - Flow fields - Three
dimensional - Three dimensional computer graphics - Unsteady flow
Uncontrolled terms: Calculation precision - Flood periods - Flow direction - Flow
velocity field - Numerical calculation - Research results - Simulation - Simulation
calculation - Simulation methods - Surface velocity - Three dimensional flow field Three dimensional space - Three-dimensional numerical simulations
Classification code: 902.1 Engineering Graphics - 732 Control Devices - 731 Automatic
Control Principles and Applications - 914.1 Accidents and Accident Prevention - 723.5
Computer Applications - 454.1 Environmental Engineering, General - 441.2 Reservoirs 631.1 Fluid Flow, General
DOI: 10.4028/www.scientific.net/AMM.203.514
Database: Compendex
85.
Title: Simulation operation of inverters in microgrid under the island and grid
Authors: Fan, Zhao1 ; Zhang, Hui1 ; Guo, Longzhou1
Author affiliation: 1 Faculty of Automation and Information Engineering, Xi'An University of
Corresponding author: Fan, Z.
Asia, IPEMC
Volume: 3
Issue date: 2012
Pages: 2081-2084
Language: English
ISBN-13: 9781457720864
United States
Abstract: The grid inverter with energy storage device in the grid different conditions include
two operation modes, one is the operation with grid, the other is the island operation. In the grid
mode, the PQ control mathematical model and control diagram are set up; in the island operating
mode, the V/f control diagram is given. In this paper, a simulation model is given in Matlab, and
the results of the simulation are given to demonstrate the correctness of the two control strategy in
their models. An outstanding simulation basis is provided for the experimental prototype
development. © 2012 IEEE.
Controlled terms: Electric inverters - Mathematical models - MATLAB - Motion
control - Power electronics - Virtual storage
Uncontrolled terms: Control strategies - Experimental prototype - Grid connected
inverters - Island operation - Micro grid - Operating modes - Operation mode PQ - Simulation model - V/f control
Classification code: 704.2 Electric Equipment - 715.2 Industrial Electronic Equipment 722.1 Data Storage, Equipment and Techniques - 723.5 Computer Applications - 731.3
Specific Variables Control - 921 Mathematics
DOI: 10.1109/IPEMC.2012.6259164
Database: Compendex
86.
Title: Combined modification of asphalt with polyethylene packaging waste and organophilic
montmorillonite
Authors: Fang, Changqing1 ; Yu, Ruien1 ; Zhang, Ying1 ; Hu, Jingbo1 ; Zhang, Min1 ; Mi,
Xinghua1
Author affiliation: 1 College of Printing and Packing Engineering, Xi'An University of
Corresponding author: Fang, C. ([email protected])
Source title: Polymer Testing
Abbreviated source title: Polym Test
Volume: 31
Issue: 2
Pages: 276-281
Language: English
ISSN: 01429418
CODEN: POTEDZ
Abstract: Organophilic montmorillonite (OMMT) was prepared via ion exchange of
Ca-montmorillonite (Ca-MMT) using dioctadecyl dimethyl ammonium chloride (DDAC). The
OMMT and polyethylene packaging waste (WPE) were used as a combined modifier for asphalt,
and the microstructure and performance of the modified asphalt were studied. Results show that
the organophilic modification with DDAC results in an obvious increase of interlayer spacing of
Ca-MMT, and the OMMT nano-lamellas can be completely exfoliated during the preparation of
modified asphalt. The WPE, dispersed in asphalt, exhibits relatively small particles with
homogeneous distribution, indicating that the OMMT addition is beneficial for the dispersion of
WPE in asphalt. Compared with ordinary polymer modified asphalt, the penetration, softening
point and ductility of the modified asphalt are all markedly improved. The modified asphalt
obtained possesses excellent high-temperature stability, low-temperature anti-cracking
performance and deformation resistance. © 2012 Elsevier Ltd. All rights reserved.
Main heading: Asphalt
Controlled terms: Ammonium compounds - Calcium - Calcium silicate - Chlorine
compounds - Clay minerals - Ion exchange - Polyethylenes - Thermoplastics
Uncontrolled terms: Ammonium chloride - Ca-montmorillonite - Deformation resistance
- High temperature stability - Homogeneous distribution - Interlayer spacings - Low
temperatures - Modification - Modified asphalts - Organophilic - Organophilic
montmorillonites - Packaging waste - Polymer modified asphalts - Small particles Softening points
Classification code: 411.1 Asphalt - 482.2 Minerals - 549.2 Alkaline Earth Metals 802.2 Chemical Reactions - 804 Chemical Products Generally - 815.1.1 Organic Polymers
DOI: 10.1016/j.polymertesting.2011.11.008
Database: Compendex
87.
Title: Effects of laser shock processing with different parameters and ways on residual stresses
fields of a TC4 alloy blade
Authors: Fang, Y.W.1 ; Li, Y.H.1 ; He, W.F.1 ; Li, P.Y.2
Author affiliation: 1 Air Force Engineering University, Fenghao Road 1, Xi'an 710077, China
2 Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Fang, Y.W. ([email protected])
Source title: Materials Science and Engineering A
Abbreviated source title: Mater. Sci. Eng. A
Volume: 559
Issue date: January 1, 2013
Pages: 683-692
Language: English
ISSN: 09215093
Abstract: The aim of this article was to describe the propagation characteristics of stresses waves
and analyze the effects with different shocked parameters and ways on the residual stresses fields
in a Ti-6Al-4V (TC4) alloy blade by laser shock processing (LSP). LSP experiments were
executed to compare with the simulated results by the finite element method (FEM) in order to
validate the strategy of modeling and simulating in the TC4 blade, and the measurement method
of peak pressure and spot overlapping was also discussed. Further, FEM was applied to simulate
the propagation of stresses waves and residual stresses fields in the TC4 blade by single-sided LSP
including different laser spot sizes and pulse widths and simultaneous two-sided LSP, and the
propagation characteristics of stresses waves and distribution rules of residual stresses fields in the
TC4 blade were described. Results showed that the strategy of modeling and simulating was
suitable for numerical simulation. As a result, the compressive residual stresses along the direction
of blade surface were increased greatly with increasing the radius of spot size and laser pulse
width by single-sided LSP. With the effective distribution of the compressive residual stresses
fields and more shocked dimples by simultaneous two-sided LSP, the corresponding mechanics
properties were obviously improved than that by single-sided LSP. © 2012 Elsevier B.V.
Main heading: Residual stresses
Controlled terms: Cerium alloys - Finite element method - Titanium alloys
Uncontrolled terms: Blade Surface - Compressive residual stress - Distribution rule Effective distribution - Finite element method FEM - Laser pulse width - Laser shock
processing - Laser spot size - Measurement methods - Mechanics property - Peak
pressure - Propagation characteristics - Pulsewidths - Simulated results - Spot sizes
- Stress wave - Stresses waves - TC4 alloys - Ti-6al-4v
Classification code: 421 Strength of Building Materials; Mechanical Properties - 542.3
Titanium and Alloys - 547.2 Rare Earth Metals - 921.6 Numerical Methods
DOI: 10.1016/j.msea.2012.09.009
Database: Compendex
88.
Title: Numerical simulation of residual stresses fields of DD6 blade during laser shock
processing
Authors: Fang, Yingwu1 ; Li, Yinghong1 ; He, Weifeng1 ; Lu, Yanjun2 ; Li, Pengyang2
Author affiliation: 1 Air Force Engineering University, Xi'an 710077, PR, China
2 Xi'an University of Technology, Xi'an 710048, PR, China
Corresponding author: Fang, Y. ([email protected])
Source title: Materials and Design
Abbreviated source title: Mater. Des.
Volume: 43
Issue date: 2013
Pages: 170-176
Language: English
ISSN: 02613069
E-ISSN: 18734197
Abstract: The object of this paper was to address the effect of laser shock processing (LSP) with
single and multiple impacts on the residual stresses of aeroengine blades manufactured by a type
of thick DD6 alloy of [0. 0. 1] orientation at 980. °C. The finite element method (FEM) model of
the DD6 blade was established during LSP with round laser spot, and LS-DYNA and ANSYS are
employed to simulate the residual stresses fields of the DD6 blade by numerical computation. The
first four modal shapes of the DD6 blade of [0. 0. 1] orientation at 980. °C were given. Moreover,
the validity of the model was verified by numerical computation and LSP experiments. As a result,
the distribution rules of the compressive residual stress with different impacts multiplicity were
described on the basis of discussing the measurement method of peak pressure. Results showed
that the impacts number corresponding to the state of uniform stress was not the same as that
related to the maximum compressive residual stress which might occur at lower number of shots.
For the DD6 blade of [0. 0. 1] orientation at 980. °C, the best compressive residual stress could be
achieved by three impacts. © 2012 Elsevier Ltd.
Controlled terms: Finite element method
Uncontrolled terms: Aero-engine - Compressive residual stress - DD6 alloy Distribution rule - Finite element method FEM - Laser shock processing - Laser spots
- LS-DYNA - Measurement methods - Modal shape - Multiple impact - Number
of shots - Numerical computations - Peak pressure - Uniform stress
Numerical Methods
DOI: 10.1016/j.matdes.2012.06.052
Database: Compendex
89.
Title: Research on the motion estimation algorithm in video coding
Authors: Fei, Quan1 ; Wei, Wei2
Author affiliation: 1 Shanxi Polytechnic Institute, Xianyang 712000, China
2 School of Computer Science and Engineering, Xi' An University of Technology, Xian, 710048,
China
Corresponding author: Fei, Q.
Source title: Information Technology Journal
Abbreviated source title: Inf. Technol. J.
Volume: 11
Issue: 11
Issue date: 2012
Pages: 1660-1663
Language: English
ISSN: 18125638
E-ISSN: 18125646
Publisher: Asian Network for Scientific Information, 308-Lasani Town, Sargodha Road,
Faisalabad, Pakistan
Abstract: This study proposed two algorithms, an adaptive motion estimation algorithm based on
Bayesian decision and an improved Motion Vector FieId Adaptive Search Technique (MVFAST)
algorithm. The first algorithm proposed in this paper, firstly, statistic the current frame and the
before frame coded macro block information, Then, using the Bayesian theory, combined with the
consistency characteristics of macro block MV space, to get an accurate and fast prediction motion
vector. The second algorithm proposed in this paper with better early termination strategy, that is
to set up a dynamic threshoId of the threshoId and take full advantage of the spatial and temporal
correlation of video sequences, the use of the adjacent macro block motion vector to block
movement by type starting point for prediction using different search strategies on the macro
block. © 2012 Asian Network for Scientific Informaction.
Main heading: Motion estimation
Controlled terms: Adaptive algorithms - Image coding
Uncontrolled terms: Adaptive motion estimation - Adaptive search - Bayesian Bayesian decision - Bayesian theory - Current frame - Early termination - Macro
block - Motion estimation algorithm - Motion Vectors - Search strategies - Spatial
and temporal correlation - Strategies - Video sequences
Classification code: 716.1 Information Theory and Signal Processing - 723 Computer
Software, Data Handling and Applications - 741 Light, Optics and Optical Devices - 921
Mathematics
DOI: 10.3923/itj.2012.1660.1663
Database: Compendex
90.
Title: Synthesis of antimicrobial cotton texture with AgO/TiO2 and its antibacterial property
Authors: Feng, La-Jun1 ; Guo, Mei-Juan1 ; Feng, Hui2 ; Shen, Wen-Ning1 ; Lu, Man1
Author affiliation: 1 School of Materials Science and Engineering, Xi'an University of
2 Shaanxi Institute of Zoology, Xi'an 710032, China
Corresponding author: Shen, W.-N.
Source title: Gongneng Cailiao/Journal of Functional Materials
Abbreviated source title: Gongneng Cailiao
Volume: 43
Issue: 15
Pages: 2002-2005
Language: Chinese
ISSN: 10019731
CODEN: GOCAEA
Publisher: Journal of Functional Materials, P.O. Box 1512, Chongqing, 630700, China
Abstract: Cotton texture used as towel and clothing exhibits good hydroscopicity and flexible.
However, cotton texture was favor to be the location of microorganism propagation, further affects
more and more people. Therefore, AgO/TiO2 composite powders were synthesized by mechanical
mixing in this paper. The size distribution of AgO/TiO2 composite powders was analyzed by laser
particle sizer. After that, antimicrobial cotton texture with AgO/TiO2 was manufactured by
hereafter disposal. The phase composition of the treated cotton texture was analyzed by X-ray
diffraction, and the antibacterial effect was tested. The results show that the size of AgO/TiO2
composite powders was fine, and the specific surface area is high, which is distributed in the range
of 0.286-11.740 μm, and is 442.37 m2/kg, respectively. After finishing with AgO/TiO2 composite
powders, there are particles attached to cotton texture, which exists in the form of AgO. The
treated cotton texture possesses strong antibacterial effect and good washing resistance. Its
inhibition zone width against E. coli and bactericidal rate are 1.075 cm and 100%. After 20 times
washing, its inhibition zone width and bactericidal rate are 0.780 cm and 99.98%, respectively.
Uncontrolled terms: AgO - Antibacterial effects - Antibacterial properties Antimicrobial - Composite powders - E. coli - Inhibition zones - Laser particles Mechanical mixing - TiO
Database: Compendex
91.
Title: Research of PSO/genetic algorithms and development of its hybrid algorithm
Authors: Feng, Lei1 ; Wei, Wei2
Author affiliation: 1 Department of Information Engineering, Shaanxi Polytechnic Institute,
Shaanxi, Xian'yang, 712000, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, 710048,
China
Corresponding author: Feng, L. ([email protected])
Source title: International Journal of Digital Content Technology and its Applications
Abbreviated source title: Int. J. Digit. Content Technol. Appl.
Volume: 6
Issue: 11
Pages: 328-335
Language: English
ISSN: 19759339
E-ISSN: 22339310
Publisher: Advanced Institute of Convergence Information Technology, 707 Seokjang-dong,
Gyeongju, BI Center, Room 207, Gyeongju, Gyeongbuk, 780-714, Korea, Republic of
Abstract: The basic theories, development and applications of particle swarm optimization and
genetic algorithm are introduced- d. Some models of improved PSO algorithms are outlined.
Characteristics of PSO and GA are compared. Two methods of hybrid of PSO and GA at present
was summarized: hybrid with two algorithms entirely or with only a few steps, and illustrated with
flowchart. Limitation of two methods of hybrid was analyzed. Pointed out that hybrid algorithms
can be improved with a balance between speed and accuracy of computation. Finally, pointed out
application of PSO needs to be extended, and hybrid with other algorithms is thought a good way
to improve PSO algorithm.
Main heading: Genetic algorithms
Controlled terms: Artificial intelligence - Evolutionary algorithms - Particle swarm
optimization (PSO)
Uncontrolled terms: Basic theory - Hybrid algorithms - Improved PSO - Particle
swarm - PSO algorithms - Swarm Intelligence
Classification code: 723 Computer Software, Data Handling and Applications - 723.4
Artificial Intelligence - 921 Mathematics
DOI: 10.4156/jdcta.vol6.issue11.41
Database: Compendex
92.
Title: Research on the effective routing estimation with lower consumption in WSNs
Authors: Fu, Chunyao1 ; Wei, Wei2 ; Wei, Ang3
Author affiliation: 1 School of Natural Sciences, Nanjing University of Posts and
Telecommunications, Nanjing 210046, China
2 XI'an University of technology, School of Computer Science and Engineering, XI'an 710048,
China
3 Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced
Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
Corresponding author: Wei, A. ([email protected])
Volume: 4
Issue: 16
Issue date: September 2012
Pages: 152-158
Language: English
ISSN: 19763700
E-ISSN: 22339345
Publisher: Advanced Institute of Convergence Information Technology, Myoungbo Bldg 3F,,
Bumin-dong 1-ga, Seo-gu, Busan, 602-816, Korea, Republic of
Abstract: Recent advances in pseudorandom methodologies and decentralized configurations
offer a viable alternative to symmetric encryption. Undoubtedly, one of the problems in sensor
networks, is energy consumption. In the proposed method, finding an optimum Cluster Head is
performed by Genetic Algorithm and clustering the network environment is done by k-means
algorithm. The proposed method uses a last transmission time of a intermediate node which
generate a first route reply. The results of simulation show that at the end of some certain part of
running the proposed algorithm, the number of alive nodes increases, comparing with the same
previous methods and this can lead to an increase in sensor network lifetime.
Main heading: Sensor nodes
Controlled terms: Energy utilization - Genetic algorithms - Wireless sensor networks
Uncontrolled terms: Cluster head - Intermediate node - k-Means algorithm - Network
environments - Network lifetime - Pseudo random - Route reply - Routing Secured routing - Symmetric encryption
- Transmission time
Classification code: 525.3 Energy Utilization - 722 Computer Systems and Equipment 723 Computer Software, Data Handling and Applications - 732 Control Devices - 921
Mathematics
Database: Compendex
93.
Title: Study on an improved algorithm based on LEACH protocol
Authors: Fu, Chunyao1 ; Wei, Wei2, 3 ; Wei, Ang1
Telecommunications, Nanjing, 210003, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
3 Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author: Wei, A.
Volume: 11
Issue: 5
Issue date: 2012
Pages: 606-615
Language: English
ISSN: 18125638
E-ISSN: 18125646
Abstract: As the routing protocols of Wireless Sensor Networks (WSNs), LEACH (low energy
adaptive clustering hierarchy) has some shortcomings in algorithm, such as, the selection of
cluster head is unreasonable and the node energy consumption is unbalanced, for these
shortcomings, we propose an energy-saving algorithm LEACH-RA based on LEACH protocol. In
LEACH-RA, all nodes are divided into fixed cluster, nodes in cluster adaptively select their
cluster head according to the radius of their own clusters. We prove by NS2 simulation that the
improved protocols effectively overcome the phenomenon of non-uniform of node energy
consumption that is caused by the policy of randomly selecting cluster head. In this way, the life
of network is extended. © 2012 Asian Network for Scientific Information.
Main heading: Leaching
Controlled terms: Algorithms - Energy balance - Energy policy - Energy utilization
- Sensor nodes - Telecommunication networks - Wireless sensor networks
Uncontrolled terms: Adaptive radius - Cluster head - Improved algorithm - LEACH
- LEACH (low energy adaptive clustering hierarchy) - NS-2 simulations - OPNET
simulation - Wireless sensor network (WSNs)
Classification code: 931 Classical Physics; Quantum Theory; Relativity - 921 Mathematics
- 732 Control Devices - 723 Computer Software, Data Handling and Applications - 722
Computer Systems and Equipment - 718 Telephone Systems and Related Technologies; Line
Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio
and Television - 533.1 Ore Treatment - 525.6 Energy Policy - 525.3 Energy Utilization
DOI: 10.3923/itj.2012.605.612
Database: Compendex
94.
Title: Application of quadratic-standard form based on LEACH protocol analysis
Authors: Fu, Chunyao1 ; Wei, Wei2 ; Wei, Ang3
Telecommunications, Nanjing 210046, China
2 XI'an University of technology, School of Computer Science and Engineering, Xi'an 710048,
China
3 Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced
Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
Corresponding author: Fu, C. ([email protected])
Volume: 6
Issue: 6
Pages: 16-26
Language: English
ISSN: 19759339
E-ISSN: 22339310
Abstract: In wireless sensor networks, due to the limitation of the node energy, energy efficiency
is an important factor should be taken into account when the protocols are designing. Based on the
application background of the equipment monitoring in intelligent space, we come up with an
improved application method of quadratic-standard form based on LEACH protocol in intelligent
space, use calculation method of cluster head election threshold, this method considers the factor
of node residual energy. Transform simulation nodes networks into corresponding matrix forms by
an appropriate communication mode, introduce matrix transform methods, give strict proof to
matrix transformations on standard quadratic form. We verify the completeness of the methods by
mathematical theory and have attained the goal of reducing network energy consumption.
Simulation results in this article shows that improved methods can save more energy in different
network environments.
Main heading: Leaching
Controlled terms: Computer simulation - Energy efficiency - Energy utilization Formal logic - Number theory - Sensor nodes
Uncontrolled terms: Application method - Calculation methods - Cluster head Communication mode - Energy efficient - Equipment monitoring - Improved methods
- Intelligent spaces - Mathematical theory - Matrix transformation
- Matrix
transforms - Network environments - Node energy - Protocol analysis - Quadratic
form - Quadratic-standard form - Residual energy
Classification code: 921 Mathematics - 723.5 Computer Applications - 722 Computer
Systems and Equipment - 721.1 Computer Theory, Includes Formal Logic, Automata Theory,
Switching Theory, Programming Theory - 533.1 Ore Treatment - 525.3 Energy Utilization
- 525.2 Energy Conservation
Database: Compendex
95.
Title: Study on the dynamic interaction between steel primary structure and cable curtain walls
secondary structure under wind load
Authors: Gao, Duixian1 ; Fan, Yonglei1, 2 ; Cui, Xiaoling1
Author affiliation: 1 School of Civil and Architecture Engineering, Xi' An University of
2 Shanghai Technical City Train Construction Co. Ltd., Shanghai 200233, China
Corresponding author: Gao, D. ([email protected])
Volume: 446-449
Monograph title: Trends in Civil Engineering
Issue date: 2012
Pages: 3076-3079
Language: English
ISSN: 10226680
ISBN-13: 9783037853474
Conference name: 2nd International Conference on Structures and Building Materials, ICSBM
2012
Sponsor: Beijing Univ. Technol., Coll. Archit. Civ. Eng.; Zhejiang Univ. Technol., Sch. Civ. Eng.
Archit.
Abstract: Cable curtain walls as a new maintenance system is being used more and more in
modern structures, it is particularly important to research the interaction between the framework
and support for cable truss structure. Select a layer of glass curtain wall with cable truss support
system in this paper compared with a separate framework with Wind load analysis of the time
domain to study the interaction. © (2012) Trans Tech Publications, Switzerland.
Main heading: Cables
Controlled terms: Aerodynamic loads - Building materials - Civil engineering Loads (forces) - Time domain analysis - Trusses - Wind stress
Uncontrolled terms: Cable truss - Curtain walls - Dynamic interaction - Dynamic
Wind Loading - Glass curtain walls - Interaction - Maintenance systems - Modern
structures - Nonlinear - Primary structures
- Secondary structures - Support
systems - Supporting systems - Time domain - Wind load - Wind load analysis
Classification code: 921 Mathematics - 651.1 Aerodynamics, General - 535 Rolling,
Forging and Forming - 421 Strength of Building Materials; Mechanical Properties - 415
Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 413
Insulating Materials - 412 Concrete - 411 Bituminous Materials - 409 Civil
Engineering, General - 408.2 Structural Members and Shapes - 408 Structural Design 402 Buildings and Towers
Database: Compendex
96.
Title: Ultraviolet scanning Raman lidar with fast telescope for measurements of water vapor and
aerosols in lower atmosphere
Authors: Gao, F.1, 2 ; Stanic, S.1 ; He, T.-Y.1 ; Hua, D.-X.2
Author affiliation: 1 University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
2 Xi'an University of Technology, No.5 South Jinhua Road, Xi'an 710048, China
Corresponding author: Gao, F. ([email protected])
Source title: Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title: Proc SPIE Int Soc Opt Eng
Volume: 8379
Monograph title: Laser Radar Technology and Applications XVII
Issue date: 2012
Language: English
ISSN: 0277786X
CODEN: PSISDG
ISBN-13: 9780819490575
Conference name: Laser Radar Technology and Applications XVII
Conference location: Baltimore, MD, United states
Sponsor: The Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher: SPIE, P.O. Box 10, Bellingham, WA 98227-0010, United States
Abstract: This work reports on the design, construction and commissioning of a ultraviolet
scanning Raman lidar system, which is deployed at the Otlica observatory in Slovenia. The system
uses a fast parabolic mirror as a receiver and a frequency-tripled Q-Switched Nd:YAG pulsed laser
as a transmitter, both are mounted on a common frame with steerable elevation angle. Custom
optics using a low f-number aspheric lens were designed to focus the light into a UV-enhanced
optical ber, used to transfer the lidar return signal from the telescope to the polychromator.
Vibrational Raman spectra of N2 and H2O were separated using narrow-band interference lters
combined with dichroic beam splitters. System functionality and performance was assessed in a
series of preliminary experiments and by the comparison of the retrieved results to radiosonde data.
© 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Main heading: Optical radar
Controlled terms: Aerosols - Atmospheric aerosols - Atmospheric boundary layer Neodymium lasers - Optical telescopes - Scanning - Telescopes - Vapors Water vapor
Uncontrolled terms: Aspheric lens - Dichroic beamsplitter - Elevation angle - Lower
atmosphere - Narrow band interference - Nd:YAG pulsed laser - Parabolic mirrors Polychromators - Q-switched - Radiosonde datas - Raman LIDAR - Raman lidar
system - Return signals - Slovenia - System functionality - System use
Classification code: 443.1 Atmospheric Properties - 741.3 Optical Devices and Systems 744.4 Solid State Lasers - 804 Chemical Products Generally
DOI: 10.1117/12.918346
Database: Compendex
97.
Title: Study on dynamic changes of the soil salinization in the upper stream of the Tarim River
based on RS and GIS
Authors: Gao, Fan1 ; Huang, Qiang1 ; Sun, Xiaoyi1 ; Yan, Zhenglong2
Author affiliation: 1 Key Lab of Northwest Water Resources and Environment, Ecology of
MOE, XAUT, Xi'an, Shaanxi, China
2 Shaanxi Geomantic Center, State Bureau of Surveying and Mapping of China, Xi'an, Shaanxi,
China
Volume: 11
Issue: PART C
Monograph title: 2011 2nd International Conference on Challenges in Environmental Science
and Computer Engineering, CESCE 2011
Issue date: 2011
Pages: 1135-1141
Language: English
E-ISSN: 18780296
Conference name: 2011 2nd International Conference on Challenges in Environmental Science
and Computer Engineering, CESCE 2011
Conference location: Haikou, China
Abstract: The Tarim River is the longest inland river in China, and the soil salinization is
extremely severe in the upper stream of the Tarim River, Which has become the major obstacle
that restrains oasis ecological stability and social economic development. This research attempts
to monitor and interpret the soil salinization temporal and spatial dynamic changes in the upper
stream of the Tarim River on the basis of RS, GPS, GIS, and massive data warehouse. In this
paper, the soil salinization classification system was built, the remote sensing images were
collected and analyzed in the springs of 1999, 2004 and 2008 respectively. The results show that:
The total area of salinized soil continues on growing from 1 225 918.67 hm2 in 1999 to 1 268
030.03 hm2 in 2008. Different types of salinized soil frequently vary, and the degrees of it
obviously become gradually weaker as a whole. To sum up, the watershed comprehensive
governance project play a decisive e and significant role in improving the salinized soil in this
region, and then promoting the ecological environment in the research region. © 2011 Published
by Elsevier Ltd.
Main heading: Soils
Controlled terms: Data warehouses - Ecology - Geographic information systems Image reconstruction - Rivers
Uncontrolled terms: Classification system - Ecological environments - Ecological
stability - Economic development - Inland rivers - ON dynamics - Remote sensing
images - RS - RS and GIS - Soil salinization - Tarim river - Temporal and
spatial dynamics - Upper stream
Classification code: 407.2 Waterways - 454.3 Ecology and Ecosystems - 483.1 Soils and
Soil Mechanics - 723.3 Database Systems - 741 Light, Optics and Optical Devices
DOI: 10.1016/j.proenv.2011.12.171
Database: Compendex
98.
Title: Microwave-acoustic phasoscopy for tissue characterization
Authors: Gao, Fei1 ; Zheng, Yuanjin1 ; Wang, Dongfang1, 2
Author affiliation: 1 School of Electrical and Electronics Engineering, Nanyang Technological
University, 639798 Singapore, Singapore
2 School of Automation and Information Engineering, Xi'An University of Technology, Xi'an
710048, China
Corresponding author: Gao, F.
Source title: Applied Physics Letters
Abbreviated source title: Appl Phys Lett
Volume: 101
Issue: 4
Issue date: July 23, 2012
Language: English
ISSN: 00036951
CODEN: APPLAB
Publisher: American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY
11747-4502, United States
Abstract: In this letter, we present a method named microwave-acoustic phasoscopy (MAPC) by
collecting both scattered microwave energy and microwave-induced thermoacoustic wave energy
for tissue characterization. Different from conventional amplitude and spectrum analysis, we
propose to evaluate the microwave-acoustic phase for tissue characterization. Theoretical analysis
and experiment verification are performed to show a good agreement. Four different biological
tissues are well differentiated in phase region using the proposed MAPC. This attempt of
exploring intrinsic relationship between scattered microwave and induced thermoacoustic signals
simultaneously provides phase contrast for tissue characterization, showing significant potential in
developing phase-contrast imaging prototype based on MAPC theory. © 2012 American Institute
of Physics.
Main heading: Microwave acoustics
Controlled terms: Characterization - Microwaves - Spectrum analysis Thermoacoustics - Tissue - Wave energy conversion
Uncontrolled terms: Biological tissues - Experiment verification - In-phase Microwave energies - Phase contrasts - Phase-contrast imaging - Thermo-acoustic
waves - Thermoacoustic signals - Tissue characterization
Classification code: 951 Materials Science - 944 Moisture, Pressure and Temperature, and
Radiation Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments
- 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring
Instruments - 921 Mathematics - 751.1 Acoustic Waves - 751 Acoustics, Noise. Sound
- 711 Electromagnetic Waves - 615.6 Wave Energy - 461.2 Biological Materials and
Tissue Engineering
DOI: 10.1063/1.4739493
Database: Compendex
99.
Title: Study on kinematic calibration method of 3-RPS parallel mechanism
Authors: Gao, Feng1 ; Li, Yan1 ; Huang, Yumei1 ; Yang, Xingang1 ; Cai, Xiaojiang1
Source title: Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument
Abbreviated source title: Yi Qi Yi Biao Xue Bao
Volume: 33
Issue: 3
Issue date: March 2012
Pages: 568-574
Language: Chinese
ISSN: 02543087
CODEN: YYXUDY
Abstract: Aiming at the kinematic accuracy issues of six-axis hybrid machine tools arisen from
the structural parameter errors in its 3-RPS parallel mechanism, the main error factors affecting
the geometric accuracy of the 3-RPS parallel mechanism are analyzed and the error model is given.
The calibration model is established based on the dominating errors. Utilizing damped least square
method, the nonlinear transcendental contradictory calibration equation sets are solved with
multiple optimal iterations. Employing the measured data collected with a laser interferometry, the
actual pose is acquired from the kinematic inverse solutions and calibrated parameters of joints.
The correctness and effectiveness of the calibration model and corresponding method are verified
through the Z-axis positioning accuracy comparison before and after calibration, and machining
experiment of real parts.
Main heading: Calibration
Controlled terms: Errors - Kinematics - Laser interferometry - Least squares
approximations - Machine tools - Mechanisms - Nonlinear equations Optimization
Uncontrolled terms: Calibration equations - Calibration model - Damped least squares
- Error factors - Error model - Geometric accuracy - Geometric errors - Hybrid
machine tools - Inverse solution - Kinematic accuracy - Kinematic Calibration Machining experiments - Measured data - Optimal iteration - Parallel mechanisms Positioning accuracy - Real part - Six-axis - Structural parameter
Classification code: 943 Mechanical and Miscellaneous Measuring Instruments - 942
Electric and Electronic Measuring Instruments - 941.4 Optical Variables Measurements 941 Acoustical and Optical Measuring Instruments - 944 Moisture, Pressure and Temperature,
and Radiation Measuring Instruments - 931.1 Mechanics - 731 Automatic Control
Principles and Applications - 603.1 Machine Tools, General - 601.3 Mechanisms - 921
Mathematics
Database: Compendex
100.
Title: Quantitative evaluation of slope stability on check-dams at different siltation heights
Authors: Gao, Haidong1 ; Li, Zhanbin1, 2 ; Li, Peng2 ; Jia, Lianlian3
Author affiliation: 1 State Key Laboratory of Soil Erosion and Dryland Agriculture on Loess
Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of
Water Resources, Yangling 712100, China
2 Key Lab. of Northwest Water Resources and Environment Ecology of Ministry, Education at
Xi'an University of Technology, Xi'an 710048, China
3 Upper and Middle Yellow River Bureau, Yellow River Conservancy Commission, Ministry of
Water Resources, Xi'an 710021, China
Corresponding author: Li, Z. ([email protected])
Engineering
Volume: 28
Issue: 16
Pages: 127-132
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: To evaluate the effects of check dams on slope stability, slope stability model based on
GIS was adopted in this study. According to the measured soil mechanics parameters and the data
of field survey to landslide sites, the slope stability with the check dam deposited to different
siltation heights were analyzed. The results showed that the defended slope zone was decreased
and the stable slope zone was increased with the increasing of the siltation heights of check dams.
The percentage of steep slope area (≥45°) was decreased with the increasing of the siltation
heights, and exhibited a linear relationship with the defended slope zone. The "flooding effect"
was summarized in the deposition process of check dams. Sediment deposition not only changed
the valley slope constitution and shortened the slope length, but also changed the
cover-manegement factors and support practice factors. The study provides a reference for check
dams building.
Controlled terms: Dams - Piles - Slope protection - Soil mechanics - Watersheds
Uncontrolled terms: Check dam - Deposition process - Field surveys - Linear
relationships - Quantitative evaluation - Sediment deposition - Slope length - Slope
zone - Stability models - Steep slope - Valley slopes
Classification code: 408.2 Structural Members and Shapes - 441.1 Dams - 444.1 Surface
Water - 483.1 Soils and Soil Mechanics
DOI: 10.3969/j.issn.1002-6819.2012.16.020
Database: Compendex
101.
Title: The numerical simulation of conductive body forming process and mould design
Authors: Gao, Jianxin1, 2 ; Zhao, Peifeng1, 2 ; Song, Kexing1, 2 ; Wang, Qing3
Author affiliation: 1 Institute of Materials Science and Engineering, Henan University of
Science and Technology, Luoyang 471003, China
2 Henan Key Laboratory of Advanced Non-Ferrous Metals, Luoyang 471003, China
China
Corresponding author: Gao, J. ([email protected])
Source title: Materials Science Forum
Abbreviated source title: Mater. Sci. Forum
Volume: 704-705
Monograph title: Physical and Numerical Simulation of Material Processing VI
Issue date: 2012
Pages: 177-182
Language: English
ISSN: 02555476
CODEN: MSFOEP
ISBN-13: 9783037853061
Conference name: 6th International Conference on Physical and Numerical Simulation of
Materials Processing, ICPNS2010
Conference location: Guilin, China
Sponsor: The Minerals, Metals and Materials Society; Dynamic Systems Inc. (DSI); Harbin
Institute of Technology; Wollongong University; Graz University of Technology
Publisher: Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
Abstract: T2-copper conductive body is a important part used in high voltage switch, it has poor
machining process due to the complex shape. Through Deform numerical simulation, conductive
body was formed by open-die forging and closed die forging. In the open-die forging simulation,
heat transfer coefficient between blank(880°C) and open-die (200°C) is 11, the surrounding
environment temperature is 20 °C, friction factor is 0.3. The main open-die forging process
parameters is: outer draft angle α=6.5°; inner draft angle β =10°; bridge width b = 5, 8, 11mm.
punching skin and cylindrical blank. Simulation results show that forging can meet the
requirement while properly adjusting mould parameters. The main size of closed-die forging
working parts is designed according to the conductive body graph, no draft angle and ring blank of
external diameter Φ1 11mm and inside diameter Φ93mm with the same volume of conductive
body. The simulation results shows that forging can be formed using open-die forging, and it is
difficult to form product by the process of the closed-die forging for ring blank because of the
restriction of solid state metal liquidity, many regions of the filling is not sufficient. Open-die
forging and casting blank-closed die forging are both used in actual production. The casting
blank-closed die forging is a more reasonable forming process compared with the open-die forging
as metal volume of distribution is solved, higher utilization rate of material, more simple process
in following work and the like. To make it more suitable for practical production, appropriate
adjustments of some parameters was made in the mold design process based on the numerical
simulation. © (2012) Trans Tech Publications.
Controlled terms: Casting - Copper compounds - Forgings - Molds - Upsetting
(forming)
Uncontrolled terms: Closed-die forging - Complex shapes - Conductive bodies - Die
forging - Draft-angles - Forming process - Friction factors - High voltage switches
- Machining Process - Mold designs - Mould design - Open die forging Practical production - Solid state metals - Surrounding environment - Utilization rates
- Working parts
Classification code: 534.2 Foundry Practice - 535.2 Metal Forming - 535.2.1 Metal
Forming Machines - 723.5 Computer Applications - 804.1 Organic Compounds
Database: Compendex
102.
Title: The numerical simulation of conductive body forming process and mould design
Authors: Gao, Jianxin1, 2 ; Zhao, Peifeng1, 2 ; Song, Kexing1, 2 ; Wang, Qing3
Author affiliation: 1 Institute of Materials Science and Engineering, Henan University of
Science and Technology, Luoyang 471003, China
China
Corresponding author: Gao, J. ([email protected])
Source title: Materials Science Forum
Abbreviated source title: Mater. Sci. Forum
Volume: 704-705
Monograph title: Physical and Numerical Simulation of Material Processing VI
Issue date: 2012
Pages: 177-182
Language: English
ISSN: 02555476
CODEN: MSFOEP
ISBN-13: 9783037853061
Conference name: 6th International Conference on Physical and Numerical Simulation of
Materials Processing, ICPNS2010
Conference location: Guilin, China
Sponsor: The Minerals, Metals and Materials Society; Dynamic Systems Inc. (DSI); Harbin
Institute of Technology; Wollongong University; Graz University of Technology
Publisher: Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
Abstract: T2-copper conductive body is a important part used in high voltage switch, it has poor
machining process due to the complex shape. Through Deform numerical simulation, conductive
body was formed by open-die forging and closed die forging. In the open-die forging simulation,
heat transfer coefficient between blank(880°C) and open-die (200°C) is 11, the surrounding
environment temperature is 20 °C, friction factor is 0.3. The main open-die forging process
parameters is: outer draft angle α=6.5°; inner draft angle β =10°; bridge width b = 5, 8, 11mm.
punching skin and cylindrical blank. Simulation results show that forging can meet the
requirement while properly adjusting mould parameters. The main size of closed-die forging
working parts is designed according to the conductive body graph, no draft angle and ring blank of
external diameter Φ1 11mm and inside diameter Φ93mm with the same volume of conductive
body. The simulation results shows that forging can be formed using open-die forging, and it is
difficult to form product by the process of the closed-die forging for ring blank because of the
restriction of solid state metal liquidity, many regions of the filling is not sufficient. Open-die
forging and casting blank-closed die forging are both used in actual production. The casting
blank-closed die forging is a more reasonable forming process compared with the open-die forging
as metal volume of distribution is solved, higher utilization rate of material, more simple process
in following work and the like. To make it more suitable for practical production, appropriate
adjustments of some parameters was made in the mold design process based on the numerical
simulation. © (2012) Trans Tech Publications.
Controlled terms: Casting - Conductive materials - Copper compounds - Dies Forgings - Mathematical models - Molds - Upsetting (forming)
Uncontrolled terms: Closed-die forging - Complex shapes - Conductive bodies - Die
forging - Draft-angles - Forming process - Friction factors - High voltage switches
- Machining Process - Mold designs - Mould design - Open die forging Practical production - Solid state metals - Surrounding environment - Utilization rates
- Working parts
Classification code: 804.1 Organic Compounds - 723.5 Computer Applications - 708.2
Conducting Materials - 921 Mathematics - 535.2.1 Metal Forming Machines - 534.2
Foundry Practice - 534.1 Foundries - 535.2 Metal Forming
DOI: 10.4028/www.scientific.net/MSF.704-705.177
Database: Compendex
103.
Title: Deposition & characterization of TiAlON & TiMoAlON solar absorber coatings for high
temperature phtothermal applications prepared by PEM controlled dual-gas reactive magnetron
sputtering
Authors: Geng, Haibin1 ; Wu, Tao1 ; Ma, Chengwei1
Technology, Xi'an, 710048, China
Corresponding author: Ma, C. ([email protected])
Volume: 538-541
Monograph title: Materials Processing Technology II
Issue date: 2012
Pages: 344-349
Language: English
ISSN: 10226680
ISBN-13: 9783037854471
Conference name: 2nd International Conference on Advanced Engineering Materials and
Technology, AEMT 2012
Conference location: Zhuhai, China
Abstract: A novel Plasma Emission Monitoring (PEM) controlled N2-O2 dual gas reactive
dcMS method is proposed for depositing TiAlON and TiMoAlON solar absorber coatings.
Working in a 'cheated' feedback mode, the PEM controller ensures smooth & precise control of
O/N ratio in obtaining oxy-nitrides without occuring of serious target poisoning. The coatings
have three functional layers including the infrared reflector, the absorbing layer, and the
antireflection layer. The absorbing layers of the two kinds of coatings are both designed to have a
gradually change Al and/or O content. However, the TiAlON coatings have a single TiAlON
absorber layer while the TiMoAlON have a tandem absorber composed of a Mo doped TiAlN
layer and a Mo doped TiAlON layer. Single-crystal silicon chips and glass slices are used as
substrates to deposit the coatings and to characterize the photothermal conversion properties and
thermal stability of the coatings by using SEM, UV-visible-near infrared photospectrometer, and
solar spectrum emissiometer. The experimtal results show that the tandem TiMoAlON coating
exhibits superior theraml stability up to 550°C. After annealing in air at 500°C for 8hrs, it exhibits
higher absorptance than as-deposited status. The annealed TiMoAlON coating has a broad
absorbing peak covering 400-800nm, which is beneficial to collect the majority energy in solar
radiation. Due to its higher absorptivity and lower normal emissivity than the TiAlON coatings,
the TiMoAlON coating yields a high solar selectivity (α/Ε&asyum;19) at room temperature.
However, at 500°C, its Ε value increases from 0.05 to about 0.25 which might attribute to its
excessive thicknesses of the sublayers. The above results demonstrate that the proposed method is
a convenient way for preparing high performance oxy-nitride solar absorber coatings which are
suitable for non-vacuum high temperature photothermal applications. © (2012) Trans Tech
Main heading: Coatings
Controlled terms: Aluminum coatings - Deposits - High temperature applications Magnetron sputtering - Nitrides - Solar absorbers - Solar radiation - Sun Vacuum applications
Uncontrolled terms: Absorber coatings - Photothermal conversion - Plasma emission
monitoring - Reactive magnetron sputtering - Tandem absorber
Classification code: 813.1 Coating Techniques - 804.2 Inorganic Compounds - 708.3.1
High Temperature Superconducting Materials - 657.2 Extraterrestrial Physics and Stellar
Phenomena - 813.2 Coating Materials - 657.1 Solar Energy and Phenomena - 617
Turbines and Steam Turbines - 612 Engines - 532 Metallurgical Furnaces - 633.1
Vacuum Applications
Database: Compendex
104.
Title: An analytical solution of residual stresses for shrink-fit two-layer cylinders after
autofrettage based on actual material behavior
Authors: Gexia, Yuan1, 2 ; Hongzhao, Liu1
Author affiliation: 1 School of Mechanical and Precision Instrument Engineering, Xi'An
2 Mechanical and Electrical Institute, Baoji University of Arts and Sciences, Baoji 721007,
China
Corresponding author: Gexia, Y. ([email protected])
Source title: Journal of Pressure Vessel Technology, Transactions of the ASME
Abbreviated source title: J Pressure Vessel Technol Trans ASME
Volume: 134
Issue: 6
Issue date: 2012
Language: English
ISSN: 00949930
E-ISSN: 15288978
CODEN: JPVTAS
Publisher: American Society of Mechanical Engineers, 3 Park Avenue, New York, NY
Abstract: To enhance the pressure capacity and the life of a pressure vessel, different processes
such as shrink-fit and autofrettage are usually employed. For autofrettaged and shrink-fit
multilayer cylinders, numerical solutions for determining the residual stress distribution have been
reported. However, few studies about the analytical method are available. In this study, an
analytical solution was presented for shrink-fit two-layer cylinders after autofrettage based on the
actual tensile-compressive stress-strain curve of material. The new analytical method accurately
predicted a residual stress distribution, and it could be used to design two-layer compound
cylinders. In this method, unloading and shrink-fitting were considered as a simultaneous
operation for an inner cylinder, allowing for a simple and accurate analysis. Some significant
factors were taken into account, including the nonlinear behavior of an original autofrettaged inner
layer in the shrink-fitting process and a material's different unloading behavior at different
maximum tensile affects back-yielding. The results of the proposed method were in excellent
agreement with the results from the simulation performed by ansys. The results indicated that an
increased shrink-fit pressure expanded the back-yielding zone of the inner cylinders, and did not
affect the back-yielding zone of the outer cylinders. The optimum percentages overstrain depend
on the working pressure when the shrink-fit pressure, cylinder size, and material are defined, and
inner and outer cylinders have different optimum percentages overstrain. © 2012 American
Society of Mechanical Engineers.
Main heading: Cylinders (shapes)
Controlled terms: Elastoplasticity - Materials - Mathematical techniques - Residual
stresses - Shrinkfitting - Stress concentration - Stress-strain curves - Unloading
Uncontrolled terms: Analytical method - Autofrettage - Elastic-plastic analysis Material behavior - Shrink-fit - Two-layer cylinder
Classification code: 408.2 Structural Members and Shapes - 421 Strength of Building
Materials; Mechanical Properties - 604.2 Machining Operations - 674.1 Small Marine
Craft - 921 Mathematics - 951 Materials Science
DOI: 10.1115/1.4006121
Database: Compendex
105.
Title: A new method for the morph of planar polygons based on shape feature
Authors: Gong, Chun-Qiong1
Author affiliation: 1 School of Science, Xi'an University of Technology, Xi'an, Shannxi, China
Corresponding author: Gong, C.-Q. ([email protected])
Source title: Proceedings - 2011 International Conference of Information Technology, Computer
Engineering and Management Sciences, ICM 2011
Abbreviated source title: Proc. - Int. Conf. Inf. Technol., Comput. Eng. Manage. Sci., ICM
Volume: 3
Monograph title: Proceedings - 2011 International Conference of Information Technology,
Computer Engineering and Management Sciences, ICM 2011
Issue date: 2011
Pages: 7-10
Language: English
ISBN-13: 9780769545226
Conference name: 2011 International Conference on Information Technology, Computer
Conference location: Nanjing, Jiangsu, China
Sponsor: The International Information Management Association; California State University
San Bernardino; Nanjing University of Information Science and Technology; US Jiangsu
Economy Trade and Culture Association; CSR Zhuzhou Institute Co., LTD
United States
Abstract: A shape feature-based and intersection-free method for morphing two planar simple
polygons with corresponding vertices is presented. Based on the convexity-preserving morph of
planar convex polygons and the convexitypreserving morph of compatible planar triangulations
with different convex boundaries, we present the method in this paper for the morph of two simple
planar polygons which embeds the source and target polygons in the compatible planar
triangulations whose boundaries are the boundaries of the magnified convex hull of the polygons
respectively, then morphs the triangulations with the convexity-preserving method. In contrast
with the existing intersection-free method which embeds the polygons in the compatible planar
triangulations with identical convex boundaries, our method takes into consideration the geometric
contours as well as the differences of the source and target polygons, so the morph is possibly
more natural, on the other hand, the algorithm for compatibly triangulating the polygons with a
single hole in our method uses further less Steiner vertices, so the efficiency is improved greatly.
© 2011 IEEE.
Main heading: Geometry
Controlled terms: Information technology - Management science - Triangulation
Uncontrolled terms: Convex hull - Convex polygon - Convexity-preserving Feature-based - Intersection-free - Morphing - Planar triangulation - Polygon Shape features - Simple polygon
- Single hole - Steiner vertices
Classification code: 405.3 Surveying - 903 Information Science - 912.2 Management 921 Mathematics
DOI: 10.1109/ICM.2011.44
Database: Compendex
106.
Title: High performance VLSI architecture of Bi-directional motion search for B picture in
H.264
Authors: Gu, Mei-Hua1 ; Kong, Rui2
Author affiliation: 1 College of Electronic Information, Xi'an Polytechnic University, Xi'an,
710048, China
2 Department of Electronics Engineering, Xi'an University of Technology, Xi'an, 710048, China
Corresponding author: Kong, R. ([email protected])
Source title: Procedia Engineering
Abbreviated source title: Procedia Eng.
Volume: 29
Monograph title: 2012 International Workshop on Information and Electronics Engineering
Issue date: 2012
Pages: 301-305
Language: English
ISSN: 18777058
Conference name: 2012 International Workshop on Information and Electronics Engineering,
IWIEE 2012
Sponsor: Harbin University of Science and Technology; International Science and Engineering
Research Center
Abstract: Bi-directional motion search is one of the important features of B picture coding in
H.264/AVC. However, its high computational complexity and huge memory traffic make design
difficult. This paper proposes a high throughput and cost efficient VLSI architecture for
bi-directional integer motion estimation (Bi-IME). The redundancy of the joint motion search is
removed, and the algorithm is simplified. Novel memory structure and intelligent reading method
are designed to satisfy the iterations of full search with two reference windows. The parallel and
sequence techniques are adopted to process the matching procedure. After logic synthesis using
SMIC 0.13 μm standard cell library, under a clock frequency of 300MHz, the proposed Bi-IME
architecture can provide processing capacity up to 149M MBs/sec which is enough for 1080p
real-time video systems. © 2011 Published by Elsevier Ltd.
Main heading: Motion estimation
Controlled terms: Electric batteries - Electronics engineering - Image matching Motion Picture Experts Group standards - Video signal processing
Uncontrolled terms: B pictures - B-picture coding - Bi-directional - Bidirectional
motion - Clock frequency - Cost-efficient - Full search - H.264/AVC - High
throughput - Integer motion estimation
- Joint motion - Logic synthesis - Memory
structure - Processing capacities - Real time videos - Standard cell - VLSI VLSI architectures
Classification code: 741 Light, Optics and Optical Devices - 723.2 Data Processing and
Image Processing - 718 Telephone Systems and Related Technologies; Line Communications
- 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television 715 Electronic Equipment, General Purpose and Industrial - 714 Electronic Components and
Tubes - 713 Electronic Circuits - 702.1 Electric Batteries
DOI: 10.1016/j.proeng.2011.12.711
Database: Compendex
107.
Title: Effect of target current on corrosion resistance of AlSn20/C coating deposited by
magnetron sputtering
Authors: Guo, Qiao-Qin1, 2 ; Jiang, Bai-Ling1 ; Li, Jian-Ping2
Author affiliation: 1 Institute of Materials Science and Technology, Xi'an University of
2 School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710032,
China
Corresponding author: Guo, Q.-Q. ([email protected])
Source title: Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Abbreviated source title: Zhongguo Youse Jinshu Xuebao
Volume: 22
Issue: 8
Pages: 2289-2294
Language: Chinese
ISSN: 10040609
CODEN: ZYJXFK
Publisher: Central South University of Technology, Hunan, Changsha, 410083, China
Abstract: The AlSn20/C composite films were deposited on the surface bearing alloy by
non-equilibrium magnetron sputtering. The influence of carbon target current on the structure and
corrosion resistance were studied by scanning electron microscopy (SEM), electrochemical
impedance spectroscopy (EIS) and polarization curves. The results indicate that when the current
is in the range of 0.2-0.8 A, the film is in layer structure, and the lower the current is, the
compacter the film structure is. The composite coating can improve the electrochemical
impedance by 5-6 order of magnitude. When the carbon target current is 0.2 A, the self-corrosion
potential can be improved from -1.42 V to -1.18 V. The carbon target current is an important factor
to affect the corrosion resistance of AlSn20/C composite coating, the lower the target current is,
the better the corrosion resistance is.
Main heading: Corrosion resistance
Controlled terms: Carbon - Composite coatings - Composite films - Deposits Electrochemical corrosion - Electrochemical impedance spectroscopy - Magnetron
sputtering - Scanning electron microscopy
Uncontrolled terms: Bearing alloys - Carbon targets - Electrochemical impedance Film structure - Layer structures - Non equilibrium - Polarization curves Self-corrosion potential
Classification code: 813.2 Coating Materials - 813.1 Coating Techniques - 804 Chemical
Products Generally - 801.4.1 Electrochemistry - 801 Chemistry - 741.1 Light/Optics
- 714.2 Semiconductor Devices and Integrated Circuits - 617 Turbines and Steam Turbines
- 612 Engines - 539.1 Metals Corrosion - 532 Metallurgical Furnaces
Database: Compendex
108.
Title: Robust variable structure control for compound active-clamp three-phase PFC converter
with soft switch
Authors: Guo, Xin1 ; Ren, Haipeng1
Author affiliation: 1 Xi'an University of Technology, School of Automation and Information
Engineering, Xi'an, 710048, China
Corresponding author: Guo, X. ([email protected])
Volume: 433-440
Issue date: 2012
Pages: 610-616
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Abstract: Compound active clamping three-phase Boost PFC converter with soft-switch has a
good potential application because of its high power factor, high efficiency and simple structure.
The mathematical model of this converter is analyzed. A variable structure control method with
the robustness item is proposed for the control of this converter, in order to overcome the
shortcoming of the existing method, when the converter parameters changes. The time-varying
boundary layer is used to smooth the control discontinuity. Simulation is performed using PSIM
and MATLAB hybrid simulation method. The results indicate that the proposed method possesses
not only better transient and steady state performance under the nominal parameters, but also
better robustness under the parameter perturbations, compared with the traditional PI control and
the former variable structure control without the robustness item. © (2012) Trans Tech
Main heading: Variable structure control
Controlled terms: DC-DC converters - Electric power factor - Electric rectifiers Information technology - Materials science - Mathematical models - MATLAB Robust control - Robustness (control systems)
Uncontrolled terms: Active-clamp - Boost PFC - Compound active-clamping - High
power factor - Hybrid simulation - Parameter perturbation - PI control - Potential
applications - PWM rectifier - Robust variable structure control - Simple structures
- Soft switch - Steady state performance - Three-phase PFC - Time varying Variable structure control method - Variable structures
Classification code: 951 Materials Science - 921 Mathematics - 903 Information Science
- 731 Automatic Control Principles and Applications - 706 Electric Transmission and
Distribution - 704.2 Electric Equipment - 704.1 Electric Components
Database: Compendex
109.
Title: Thermal expansion behavior of MgO/Cu composite with lower MgO volume fraction
Authors: Guo, Xiuhua1, 2, 3 ; Song, Kexing1, 2, 3 ; Liang, Shuhua1 ; Zheng, Cuihua2, 3
2 School of Materials Science and Engineering, Henan University of Science and Technology,
Luoyang 471003, China
Corresponding author: Song, K. ([email protected])
Source title: Materials Research Bulletin
Abbreviated source title: Mater Res Bull
Volume: 47
Issue: 11
Pages: 3211-3215
Language: English
ISSN: 00255408
CODEN: MRBUAC
Abstract: MgO/Cu composites reinforced with 1.0 vol.%, 1.5 vol.%, 2.0 vol.%, 2.5 vol.% and
3.0 vol.% MgO particles were fabricated by powder metallurgy. The effect of MgO particles on
the thermal expansion behavior of MgO/Cu composites was studied, and the thermal expansion
properties of MgO/Cu composites prepared were evaluated by the coefficient of thermal
expansion at the temperatures range from 50 °C to 500 °C. The results show that the introduction
of MgO particles significantly reduces the coefficient of thermal expansion of copper matrix. The
increased temperature enhances the coefficient of thermal expansion of MgO/Cu composite,
whereas more MgO content decreases the coefficient of thermal expansion of MgO/Cu composite.
The thermal expansion properties of MgO/Cu composites were calculated by theoretical models.
The calculated pressure values at the interface between MgO particles and copper matrix suggest
that plastic deformation can occur at 350 °C, which is consistent with the variations of the
measured coefficient of thermal expansion. © 2012 Elsevier Ltd. All rights reserved.
Main heading: Particle reinforced composites
Controlled terms: Metallic matrix composites - Powder metallurgy - Thermal expansion
Uncontrolled terms: Copper matrix - Increased temperature - MgO - MgO content Pressure values - Theoretical models - Thermal expansion behavior - Thermal
expansion properties
Classification code: 531 Metallurgy and Metallography - 536 Powder Metallurgy - 951
Materials Science
DOI: 10.1016/j.materresbull.2012.08.012
Database: Compendex
110.
Title: Elevated temperature tensile properties of Mg-Al-Si alloys prepared by reciprocating
extrusion
Authors: Guo, Xue-Feng1 ; Yang, Wen-Peng1, 2 ; Song, Pei-Wei2
Author affiliation: 1 School of Materials Science and Engineering, Henan Polytechnic
University, Jiaozuo 454010, China
China
Corresponding author: Guo, X.-F. ([email protected])
Source title: Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Abbreviated source title: Cailiao Rechuli Xuebao
Volume: 33
Issue: 2
Pages: 7-11
Language: Chinese
ISSN: 10096264
CODEN: JRXUDO
Publisher: Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083,
China
Abstract: Mg-4Al-2Si (AS42), Mg-4Al-4Si (AS44) and Mg-6Al-6Si (AS66) alloys were
prepared by reciprocating extrusion (RE-n, where n is pass number), and tensile properties of the
alloys were examined at 150°C with an initial strain rate of 1.33 × 10-3 s-1. The results show that
the grain size of RE-8-AS42 alloy with Mg2Si particles of 1.3 μm is 2.1 μm, the grain size of 4.8
μm is observed in RE-4-AS42 alloy containing Mg2Si particles of 2-20 μm, and the grain sizes of
RE-AS44 and RE-AS66 alloys are about 11 μm containing Mg2Si particles larger than 20 μm. The
tensile strength increases with increasing extrusion passes. The RE-8-AS42 alloy has the best
tensile properties with an ultimate tensile strength, a yield strength and an elongation of 250 MPa,
197 MPa and 62%, respectively. The excellent properties are attributed to the fine grains and
thermally stable fine Mg2Si particles, which can suppress grain boundaries sliding effectively.
Main heading: Silicon alloys
Controlled terms: Aluminum - Extrusion - Grain boundaries - Grain size and shape
- Silicon - Tensile strength
Uncontrolled terms: Elevated temperature tensile properties - Fine grains - Grain
boundaries sliding - Grain size - Initial strains - Reciprocating extrusion Si-particle - Thermally stable - Ultimate tensile strength
Classification code: 933.1 Crystalline Solids - 801.4 Physical Chemistry - 549.3
Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 541.1 Aluminum
- 535.2.2 Metal Forming Practice - 422 Strength of Building Materials; Test Equipment and
Methods - 421 Strength of Building Materials; Mechanical Properties
Database: Compendex
111.
Title: Comparison studies on modified atmosphere packaging of post-harvest apple
Authors: Guo, Yanfeng1 ; Hou, Qinrui1 ; Xu, Wencai2 ; Pan, Songnian1
Author affiliation: 1 Xi'an University of Technology, Dept. of Packaging Engineering, Xi'an
710048, Shaanxi Province, China
2 Beijing Institute of Graphic Communication, Dept. of Packaging Engineering, Beijing 102600,
China
Corresponding author: Guo, Y. ([email protected])
Volume: 200
Monograph title: Packaging Science and Technology
Issue date: 2012
Pages: 492-497
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854785
Conference name: 2012 International Conference on Packaging Technology and Science, ICPTS
2012
Conference location: Ningbo, China
Abstract: In the article the comparison package box with modified atmosphere packaging (MAP)
and without package is firstly developed and applied to make comparison experiments of
post-harvest apples during storage of 30days, 60days and 90days. Then the influence of MAP on
the transpiration of post-harvest apples is studied by comparison experiments, and the respiration
model and the change of water loss for post-harvest apples is analyzed. These results show that,
within the initial storage of 20days the change of water loss of apples with MAP or without
package is approximate and almost linear. After 20days the two cases of water loss have obvious
difference, the water loss by transpiration for apples without package still shows linearity and
maintain constant transpiration rate, yet the transpiration rate of apples with MAP would gradually
decrease. Transpiration of post-harvest apples with MAP can be effectively retarded at high
relative humidity, and these apples may maintain better quality and 90days shelf life at constant
temperature 5°C and relative humidity 60%. © (2012) Trans Tech Publications, Switzerland.
Main heading: Modified atmosphere packaging
Controlled terms: Evapotranspiration - Experiments - Fruits - Harvesting Transpiration
Uncontrolled terms: Apple - Comparison study - Constant temperature - High
relative humidities - Postharvest - Shelf life - Transpiration rates - Water loss Weight loss
Classification code: 444.1 Surface Water - 643 Space Heating, Ventilation and Air
Conditioning - 694.1 Packaging, General - 821.3 Agricultural Methods - 821.4
Agricultural Products - 901.3 Engineering Research
Database: Compendex
112.
Title: A new-type package of corrugation paperboard bracket on electron gun
Authors: Guo, Yanfeng1 ; Hou, Jinli1 ; Ma, Xianping1 ; Xu, Wencai2
China
Volume: 200
Issue date: 2012
Pages: 48-52
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854785
2012
Abstract: On account of the serious damage case of electron gun packaged by using the PE or
PVC plastic trays during long-distance distribution, the new-type packages of corrugation
paperboard bracket (one layer, two layers and three layers) are developed for the protective
packaging of electron gun, which have the advantages of compact structure with placement,
orientation and fixation, favorable stability, count, and dustproof function for electron guns. The
verification and comparison by a series of comparison experiments on drop shocks and sine
vibrations prove that the improved packages have favorable package cushioning and
vibration-proof performances, and can provide effective protection for the products of electron
gun during storage and transportation. Moreover the new-type packages have the advantages of
compact structure with placement, orientation and fixation, favorable stability, count and
dustproof function for electron guns. © (2012) Trans Tech Publications, Switzerland.
Main heading: Electron guns
Controlled terms: Corrugated paperboard - Packaging - Paperboards - Polyvinyl
chlorides
Uncontrolled terms: Compact structures - Package cushioning - Protective packaging Sine vibration - Three-layer - Vibration-proof
Classification code: 694.1 Packaging, General - 714.1 Electron Tubes - 811.1 Pulp and
Paper - 815.1.1 Organic Polymers
Database: Compendex
113.
Title: A new-type packaging protection model of moulded pulp on electron gun
Authors: Guo, Yin1 ; Guo, Yanfeng1 ; Xu, Wencai2
China
Volume: 200
Issue date: 2012
Pages: 131-135
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854785
2012
Abstract: In this research work the moulded pulp of inexpensive and environmental-friendly
advantages over plastic foams, excellent machining technique is applied into the transport
packaging of electron gun. Firstly, three packaging protection models of moulded pulp (one layer,
two layers, and three layers) on electron gun are developed on account of the structural
characteristics of electron gun, which have the advantages of compact structure with placement,
orientation and fixation, favorable stability, count, and dustproof function for electron gun.
Secondly, the package cushioning and vibration-proof performances of these packaging protection
models are respectively studied by six groups of drop shock experiments and sine vibration tests
of comparison. All results show that, the three packaging protection models of moulded pulp have
favorable packaging function, and can provide effective protection for the products of electron gun
during storage and transportation. © (2012) Trans Tech Publications, Switzerland.
Main heading: Packaging
Controlled terms: Electron guns
Uncontrolled terms: Compact structures - Environmental-friendly - Machining
techniques - Moulded pulp - Package cushioning - Packaging functions - Sine
vibration tests - Structural characteristics - Three-layer - Transport packaging
Vibration-proof
Classification code: 694.1 Packaging, General - 714.1 Electron Tubes
Database: Compendex
114.
Title: Surface nano-crystallization of TC4 titanium alloy and its thermal stability
Authors: Guo, Zhou-Qiang1 ; Ge, Li-Ling1 ; Yuan, Hang1 ; Qin, Chao1
Corresponding author: Ge, L.-L. ([email protected])
Source title: Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Abbreviated source title: Cailiao Rechuli Xuebao
Volume: 33
Issue: 3
Pages: 114-118
Language: Chinese
ISSN: 10096264
CODEN: JRXUDO
Publisher: Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083,
China
Abstract: A nanocrystalline surface layer was fabricated on TC4 titanium alloy by using
supersonic fine particles bombarding (SFPB), and then was annealed at different temperatures for
2 h. The surface nanocrystallization mechanism and its thermal stability were investigated by
means of X-ray diffraction (XRD), micro-hardness testing, transmission electron microscopy
(TEM) and differential thermal analysis (DTA). The results indicate that the thickness of the
nanostructured layer increased with the extension of SFPB treatment time and finally is saturated
after SFPB treatment for 30 min. The average size of equiaxed nanocrystallites is approximately
15 nm, which exhibits a random crystallographic orientation on the top surface layer. The
nanostructure of the treated surface has an excellent thermal stability up to an annealing
temperature of 750°C.
Main heading: Thermodynamic stability
Controlled terms: Differential thermal analysis - Nanocrystallization - Titanium alloys -
Transmission electron microscopy - X ray diffraction
Uncontrolled terms: Annealing temperatures - Average size - Crystallographic
orientations - Fine particles - Nano-structured layer - Nanocrystalline surface layer Surface nanocrystallization - TC4 titanium alloy - Top surface - Transmission electron
microscopy (TEM) - Treatment time
Classification code: 933.1.1 Crystal Lattice - 933 Solid State Physics - 801 Chemistry 761 Nanotechnology - 741.3 Optical Devices and Systems - 641.1 Thermodynamics 542.3 Titanium and Alloys
Database: Compendex
115.
Title: Research situation of water flow in bend open channel
Authors: Ha, An-Ying1 ; Liu, Lei2
2 Tsinghua University, Beijing 100084, China
Corresponding author: Ha, A.-Y. ([email protected])
Volume: 42
Issue: 12
Pages: 1462-1469
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: The research on bend flow in open channels includes the lateral slope of water surface
and velocity distribution of circulating current. This paper summarizes the development of
research on the above aspects. Comparisons of current used formulas and retated experimental
data are also given. The best formula for engineering practice is sugested.
Main heading: Open channel flow
Controlled terms: Research
Uncontrolled terms: Circulating current - Engineering practices - Experimental data Flow in bend open channel - Lateral water surface slope - Open channels - Water flows
- Water surface
Classification code: 631.1 Fluid Flow, General - 901.3 Engineering Research
Database: Compendex
116.
Title: Quantitative division method for floodplain and main channel of alluvial river and its
application
Authors: Ha, An-Ying1 ; Wu, Teng2 ; Chen, Gang1
2 Hohai University, Nanjing 210098, China
Corresponding author: Ha, A.-Y. ([email protected])
Volume: 43
Issue: 1
Pages: 10-14
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: An investigation on hydraulic characteristics of compound channel is presented in this
paper. It shows that the composite velocity exhibits a sharp decrease immediately when water
flows over floodplains and increase later, while kinetic energy coefficient and momentum
coefficient exhibits a sharp increase immediately when water flows over floodplains and decrease
later. Based on the hydraulic characteristics, the quantitative division method for floodplain and
main channel of alluvial river is referred. The integrated velocity of compound channel is selected
as the discrimination factor. The proposed method is used to divide the floodplain and main
channel in flow and sediment mathematical model, and a good result is attained.
Main heading: Banks (bodies of water)
Controlled terms: Anoxic sediments - Buoyancy - Flow of water - Hydraulics Mathematical models - Rivers - Velocity
Uncontrolled terms: Alluvial river - Compound channel - Energy coefficients - Flood
plains - Flow and sediment mathematical model - Hydraulic characteristic Momentum coefficient - Sharp increase - Water flows
Classification code: 931.1 Mechanics - 921 Mathematics - 632.1 Hydraulics - 631.1.1
Liquid Dynamics - 631 Fluid Flow - 483 Soil Mechanics and Foundations - 407.2
Waterways
Database: Compendex
117.
Title: Local flow field and scour near the water intake project between spur dikes
Authors: Ha, Anying1, 2 ; Li, Guodong1 ; Yang, Lan1 ; Chen, Gang1, 3
Author affiliation: 1 School of Water Resources and Hydroelectric Engineering, Xi'an
2 Ningxia Water Resources and Hydropower Survey Design and Research Institute Cooperation
Limited, Yinchuang 750004, China
3 Ankang University, Ankang 725000, China
Corresponding author: Li, G. ([email protected])
Source title: Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and
Engineering
Abbreviated source title: Yingyong Jichu yu Gongcheng Kexue Xuebao
Volume: 20
Issue: 4
Pages: 602-611
Language: Chinese
ISSN: 10050930
Publisher: Editorial Board of Journal of Basic Science and, Room 110, Old Geosciences
Building Peking University, Beijing, 100871, China
Abstract: In combining with a water intake project in Ningxia section of Yellow River, the flow
field and local scour and deposition deformation features around the project shielded by the spur
dikes were investigated using undistorted movable-bed physical model. The results showed that
the local flow pattern and scour near the project were mainly conducted by the backflow between
spur dikes and the diffusing mainstream. Under the current conditions, the flow pattern in the front
of water intake structure is free of backflow, and the back silting sediment does not endanger the
safety of water intake, but the diffusing mainstream rushes the project and results in serious local
scour. When up-oriented submerged type diversion facilities are added, the local scour can be
greatly reduced. The optimizing configuration and orientation angler of diversion facilities were
obtained. Extending the up spur dam in a reasonable manner can achieve a more favorable flow
condition for water intake, so that rushing was alleviated and local scour was diminished. These
results can provide reference for the design of similar engineering.
Main heading: Inlet flow
Controlled terms: Flow fields - Flow patterns - Levees - Scour
Uncontrolled terms: Backflow - Deformation feature - Flow condition - Local flow
field - Local scour - Model design - Physical model - Spur dike - Water intake
structure - Water intakes - Yellow river
Flood Control - 631.1 Fluid Flow, General - 951 Materials Science
DOI: 10.3969/j.issn.1005-0930.2012.08.006
Database: Compendex
118.
Title: 3-D hydrodynamic model for free-surface flows and sediment transport on unstructured
σ-coordinate grid. Part II. Model validation
Authors: Ha, Anying1 ; Hu, Dechao2, 3 ; Zhang, Hongwu2 ; Zhao, Weiyang4
2 State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084,
China
3 Changjiang River Scientific Research Institute, Wuhan 430010, China
4 Changjiang Design and Research Institute of Waterway, Wuhan 430011, China
Corresponding author: Hu, D. ([email protected])
Volume: 30
Issue: 6
Pages: 230-236
Language: Chinese
ISSN: 10031243
Abstract: The model described in part I of this paper is compared with several similar
hydrodynamic models, and it is validated through several test cases. Successful simulations of tide
flows in natural rivers indicate that this new model can simulate free-surface flows and that it is
robust in modeling complex river boundaries. The model was validated by comparing its
hydrodynamic and sediment transport predictions with the measured data of a pure erosion
experiment, an experiment of local scouring around a spur-bar of trapezoid cross-section and the
natural river field data of bed deformation, and good agreements were obtained. © Copyright.
Main heading: Three dimensional
Controlled terms: Anoxic sediments - Experiments - Fluid dynamics - Numerical
models - Rivers - Sediment transport - Sedimentology - Sediments
Uncontrolled terms: Flows - Free surfaces - Sediment dynamics - Three dimensions
- Unstructured grid - Validations
Classification code: 921 Mathematics - 902.1 Engineering Graphics - 901.3 Engineering
Research - 931.1 Mechanics - 483.1 Soils and Soil Mechanics - 481.1 Geology 407.2 Waterways - 483 Soil Mechanics and Foundations
Database: Compendex
119.
Title: Experimental study of mechanical characteristics of sandstone under different loading
paths
Authors: Han, Tielin1 ; Chen, Yunsheng1 ; Song, Yongjun2 ; Li, Weihong1 ; Yu, Zhao1
Xi'an, Shaanxi 710048, China
2 School of Highway, Chang'an University, Xi'an, Shaanxi 710064, China
Corresponding author: Han, T. ([email protected])
Source title: Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and
Engineering
Abbreviated source title: Yanshilixue Yu Gongcheng Xuebao
Volume: 31
Issue: SUPPL. 2
Pages: 3959-3966
Language: Chinese
ISSN: 10006915
CODEN: YLGXF5
Abstract: Triaxial compression for sandstone sample under three paths, i.e. axial loading and
radial constant, axial loading and radial unloading, axial constant and radial unloading are realized
on WDT-1500 reactive material testing machine. The mechanical characteristic of sandstone
comparatively from deformation property, strength property, failure feature and its mechanism are
analyzed and researched. The test results show that strength of sandstone is reduced, but
deformation of radial and its expansion of capacity under the same principal stress increase
significantly under axial loading and radial unloading, axial constant and radial unloading relative
to axial loading and constant radial, and especially under axial loading and radial unloading the
expansion of capacity is largest; the deformation property and strength property of sandstone
under these three stress paths are mainly influenced by initial axial pressure and initial radial
pressure, but the influence of the unloading speed of radial pressure on mechanical characteristics
of sandstone is not clear. The failure characteristics of samples under axial loading and constant
radial present shear failure, but the failure characteristics of samples often present mixed
tensile-shear failure under axial loading and radial unloading, axial constant and radial unloading.
Main heading: Unloading
Controlled terms: Axial loads - Deformation - Loading - Mechanical properties Rock mechanics - Sandstone
Uncontrolled terms: Axial loading - Axial pressures - Deformation properties Experimental studies - Failure characteristics - Failure features - Loading path Mechanical characteristics - Principal stress - Radial pressure - Reactive materials Sandstone samples - Shear failure - Standstone - Strength property - Stress paths Triaxial compression
Classification code: 674.1 Small Marine Craft - 672 Naval Vessels - 502.1 Mine and
Quarry Operations - 951 Materials Science - 482.2 Minerals - 421 Strength of Building
Materials; Mechanical Properties - 408 Structural Design - 422 Strength of Building
Materials; Test Equipment and Methods
Database: Compendex
120.
Title: Numerical study on flow around three circular piers in tandem arrangement at a
supercritical Reynolds number
Authors: Hao, Peng1, 2 ; Li, Guodong1 ; Yang, Lan1 ; Chen, Gang1, 3
Author affiliation: 1 College of Water Resources and Hydroelectric Engineering, Xi'an
2 Mid-south Design and Research Institute, CHECC, Changsha, 410014, China
3 Ankang University, Ankang 725000, China
Corresponding author: Hao, P. ([email protected])
Volume: 170-173
Issue date: 2012
Pages: 1932-1937
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: As the support structures of building for crossing river, piers of bridge and/or aqueduct
are generally arranged in tandem along the river direction, the fluid dynamic forces are main
lateral loads acting on the Piers. Two-dimensional fluid computations have been performed using
LES model to investigate the flows around three circular piers in tandem arrangements at a
supercritical Reynolds number, Re =8.76×106. Both center-to-center spaces are L/D=2.6. The
flows and fluid-dynamic forces obtained from the simulations are analyzed. The results can
provide the basis for the dynamic design of the supporting structures of the aqueducts. © (2012)
Trans Tech Publications, Switzerland.
Main heading: Piers
Controlled terms: Building materials - Civil engineering - Computer simulation Hydraulic structures - Reynolds number - Structural design
Uncontrolled terms: Dynamic design - Fluid dynamic forces - Lateral loads Numerical studies - On flow - Super-critical - Support structures - Supporting
structure - Tandem arrangement
Classification code: 631.1 Fluid Flow, General - 611 Hydroelectric and Tidal Power Plants
- 441 Dams and Reservoirs; Hydro Development - 415 Metals, Plastics, Wood and Other
Structural Materials - 414 Masonry Materials - 723.5 Computer Applications - 413
Insulating Materials - 411 Bituminous Materials - 409 Civil Engineering, General 408.1 Structural Design, General - 407.1 Maritime Structures - 412 Concrete
Database: Compendex
121.
Title: Study on three-dimensional fluid-solid dynamic interaction model
Authors: Hao, Peng1, 2 ; Liu, Yun-He1 ; Liu, Zhe1 ; Lu, Bo1
2 Mid-South Design and Research Institute, CHECC, Changsha 410014, China
Corresponding author: Hao, P. ([email protected])
Volume: 43
Issue: 2
Pages: 246-252
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: Fluid-solid dynamic interaction is a significant problem in the area of engineering, but
it is difficult to study on their coupling analysis due to dramatic differences between fluid and
solid, especially on 3-D analysis. This paper analyzes interface's motion status of tri-dimensional
fluid and solid, proposing and applying infinite dot pair's mode on interface to simulate fluid-solid
dynamic interaction. Moreover, according to the generalized variational principle and Lagrange
multiplier method this paper introduces flu? id-solid interface constraint condition and establishes
theoretical model that could analyze dynamic interaction about tri-dimensional uncompressed
fluid and solid. Then it deduces coupling dynamic finite element equation and treats fluid-solid
dynamic coupling internal force as unknown which allows dynamic transient response of coupling
fluid domain and solid domain could be deduced from the same equation. The results of a classic
example indicate that this model is correct and has relatively high accuracy in calculation. The
earthquake response of fluid tank indicates that solid deformation is dramatic and should be
considered in engineering designing.
Controlled terms: Finite element method - Lagrange multipliers - Variational techniques
Uncontrolled terms: Contact interface - Coupling analysis - Coupling dynamics Coupling fluids - Dynamic couplings - Dynamic interaction - Dynamic transients Earthquake response - Finite Element - Generalized variational principle
- Infinite dot
pairs mode - Interface constraints - Internal forces - Lagrange multiplier method Solid deformation - Theoretical models - Tri-dimensional dynamic coupling
Database: Compendex
122.
Title: Mie scattering in ultraviolet communication
Authors: He, Hua1 ; Ke, Xi-Zheng1
Author affiliation: 1 Automation and Information School, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: He, H. ([email protected])
Source title: Yingyong Kexue Xuebao/Journal of Applied Sciences
Abbreviated source title: Yingyong Kexue Xuebao
Volume: 30
Issue: 3
Pages: 245-250
Language: Chinese
ISSN: 02558297
CODEN: YKXUD4
Publisher: Shanghai Science and Technology Press, P.O. Box 123, 99 Shangda Road, Shanghai,
200444, China
Abstract: Aerosols contributes much to the ultraviolet non-line-of-sight communication. Based
on the Mie theory, this paper derives recurrence functions of Mie scattering coefficient and angle
scattering coefficient, and uses the recurrence functions to compute the ultraviolet scattering
phrase function. The results show that the larger the scattering particle radius, the stronger the
forward and backward scattering effects. When scattering particles are smaller, ultraviolet forward
scattering is weaker than back scattering, and the range of phrase function is not large. However,
when scattering particles become larger, the ultraviolet forward scattering is much stronger than
scattering in the backward and other directions.
Main heading: Communication
Controlled terms: Brillouin scattering - Forward scattering
Uncontrolled terms: Backward scattering - Mie scattering - Mie theory Non-line-of-sight - Scattering co-efficient - Scattering particles
Classification code: 711 Electromagnetic Waves - 716 Telecommunication; Radar, Radio and
Television - 741.1 Light/Optics
DOI: 10.3969/j.issn.0255-8297.2012.03.005
Database: Compendex
123.
Title: Effect on resistance and airflow distribution of lateral moving-electrode type electric field
Authors: He, Jian1 ; Xu, Guosheng1 ; Zhou, Xiaode1 ; Yuan, Shuxia2
Author affiliation: 1 Xi'an University of Technology XAUT, Xi'an, China
2 Xi'an Yuqing Environmental Engineering Technology Co., Ltd. XAYQ, Xi'an, China
Corresponding author: He, J. ([email protected])
CDCIEM
Issue date: 2012
Pages: 272-274
Language: English
ISBN-13: 9780769546391
United States
Abstract: Lateral moving-electrode type electric field (LMEF) was a new upgrading technique
for electrostatic precipitator (ESP) and obtained excellent effect in application for its advanced
mechanism, feasibility and economic. Modeling on the ESP of Hebei Iron &Steel Group, this
paper has numerically simulated the effect of LMEF on resistance and airflow distribution of the
ESP. The results indicated that LMEF has almost no influence upon resistance increasing but
market effect on airflow distribution. © 2012 IEEE.
Main heading: Electric fields
Controlled terms: Electric resistance - Electrostatic precipitators - Environmental
engineering
Uncontrolled terms: Airflow distribution - Market effect - On-resistance
Classification code: 454 Environmental Engineering - 701.1 Electricity: Basic Concepts and
Phenomena - 704.2 Electric Equipment
DOI: 10.1109/CDCIEM.2012.71
Database: Compendex
124.
Title: Collection performance of lateral moving-electrode type electric field
Authors: He, Jian1 ; Xu, Guosheng1 ; Zhou, Xiaode1
Author affiliation: 1 Xi'an University of Technology XAUT, Xi'an, China
Corresponding author: He, J. ([email protected])
CDCIEM
Issue date: 2012
Pages: 195-197
Language: English
ISBN-13: 9780769546391
United States
Abstract: this paper proposed a new structure of movingelectrode type electric field and selected
three kinds of typical metallurgical dusts to carry out characteristic analysis and performance
experiments in it and traditional fixed electric field respectively. The results showed that lateral
movingelectrode type electric field(LMEF) has superior performance on collecting fine particles
but limited effect on coarse particles and is suited for using in outlet of electrostatic
precipitators(ESP), which is an economic and feasible method for ESP renovation. © 2012 IEEE.
Main heading: Electric fields
Controlled terms: Electrostatic precipitators - Electrostatic separators - Environmental
engineering
Uncontrolled terms: Coarse particles - Collection performance - Electrostatic
precipitation - Fine particles - Lateral - Moving-electrode - Out characteristics Performance experiment
Classification code: 454 Environmental Engineering - 701.1 Electricity: Basic Concepts and
Phenomena - 704.2 Electric Equipment
DOI: 10.1109/CDCIEM.2012.53
Database: Compendex
125.
Title: Analysis and validation of coupled heat-moisture-deformation model for saturated frozen
soils
Authors: He, Min1, 3 ; Li, Ning1, 2 ; Liu, Nai-Fei1
2 State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou 730000, China
3 Northwest Hydro Consulting Engineering, Xi'an 710048, China
Corresponding author: He, M. ([email protected])
Volume: 34
Issue: 10
Pages: 1858-1865
Language: Chinese
ISSN: 10004548
CODEN: YGXUEB
Abstract: Based on the theoretical frame of multi-phase porous medium for saturated frozen
soils, the momentum equilibrium equation, the continuity equation, and the energy equation of the
coupled model for frozen soils are simplified through the introduction of Clapeyron equation to
describe the temperature gradient on the moisture migration in freezing zone and considering the
actual engineering characteristics in cold regions. The program of the FEM resolution for the
coupled heat-moisture-deformation model for civil engineering in cold zone is established under
the plane strain. The simulated results for analyzing Penner's lab heaving tests are introduced to
check and validate the rationality and reliability of the proposed model.
Main heading: Frozen soils
Controlled terms: Civil engineering - Computer simulation - Deformation - Moisture
- Porous materials
Uncontrolled terms: Clapeyron equations - Cold regions - Continuity equations Coupled models - Energy equation - Engineering characteristics - Moisture migration
- Momentum equilibrium equation - Phase Change - Plane strains - Porous medium
- Simulated results
Classification code: 951 Materials Science - 801.4 Physical Chemistry - 723.5 Computer
Applications - 483.1 Soils and Soil Mechanics - 422 Strength of Building Materials; Test
Equipment and Methods - 421 Strength of Building Materials; Mechanical Properties - 409
Civil Engineering, General
Database: Compendex
126.
Title: Effects of excitation wavelength and Y3+ content on luminescent properties of
YMO4:Dy3+ (M = V, P) phosphors induced by ultraviolet excitation
Authors: He, Yuyang1 ; Zhao, Maiqun1 ; Song, Yanyan1 ; Zhao, Gaoyang1
Author affiliation: 1 Faculty of Material Science and Engineering, Xi'An University of
Corresponding author: He, Y. ([email protected])
Source title: Materials Research Bulletin
Abbreviated source title: Mater Res Bull
Volume: 47
Issue: 7
Pages: 1821-1826
Language: English
ISSN: 00255408
CODEN: MRBUAC
Abstract: Y0.99VO4:0.01Dy3+, Y0.99PO 4:0.01Dy3+ and YxVO4:0.01Dy 3+ phosphors were
synthesized by chemical co-precipitation method. All the samples were characterized by X-ray
powder diffraction (XRD) and photoluminescence spectroscopy. XRD results show that the
samples only have single tetragonal structure and the crystallinity of Y0.99VO 4:0.01Dy3+
phosphor is higher than that of Y 0.99PO4:0.01Dy3+ phosphor when the heat treatment process is
same. Photoluminescence excitation spectra results show that the Y0.99VO4:0.01Dy3+ and Y
0.99PO4:0.01Dy3+ phosphors can be efficiently excited by ultraviolet light from 250 nm to 380
nm, the former have a wide Dy3+-O2- charge transfer band ranging from 260 nm to 350 nm
including a peak at 310 nm, the latter have four peaks at 294 nm, 326 nm, 352 nm and 365 nm.
Emission spectra of all the samples exhibit a strong blue emission (483 nm) and another strong
yellow emission (574 nm). Moreover, the yellow-to-blue emission intensity ratio and color
temperature of emission of Dy3+ are strongly related to excitation wavelength in Y
0.99PO4:0.01Dy3+ phosphor, but it is almost not in Y0.99VO4:0.01Dy3+ phosphor. For Y
xVO4:0.01Dy3+ (x = 0.94, 0.97, 0.99, 1.01, 1.03) phosphors, with increasing value of x, the body
color of phosphor changes from yellow to white and the strongest peak in excitation spectra shifts
a little to shorter wavelength. It is detrimental to luminous intensity when Y3+ content deviate
stoichiometric ratio, but the influence of Y 3+ on the color temperature of emission of YVO4:Dy
3+ phosphor is slight. © 2012 Elsevier Ltd. All rights reserved.
Main heading: Phosphors
Controlled terms: Charge transfer - Color - Emission spectroscopy - Excited states Luminescence - Photoluminescence spectroscopy - Ultraviolet radiation - X ray
diffraction - X ray powder diffraction
Uncontrolled terms: Blue emission - Charge transfer bands - Chemical coprecipitation
method - Chemical synthesis - Color temperatures - Crystallinities - Emission
intensity ratio - Emission spectrums - Excitation spectrum - Excitation wavelength
Heat treatment process - Luminescent property - Luminous intensity Photoluminescence excitation spectrum - Shorter wavelength - Stoichiometric ratio Tetragonal structure - Ultra violet excitation - Ultra-violet light - XRD
- Yellow
emissions
Classification code: 741.1 Light/Optics - 741.3 Optical Devices and Systems - 802.2
Chemical Reactions - 931.3 Atomic and Molecular Physics
DOI: 10.1016/j.materresbull.2012.03.019
Database: Compendex
127.
Title: A safety framework and alarming model for train operation environment based on CPS
Authors: Hei, Xinhong1 ; Chang, Lining1 ; Ma, Weigang1 ; Xie, Guo2
Technology, No. 5 Jinhua South Road, Xi'an, China
2 Graduate School of Science and Technology, Nihon University, Narashino Dai 7-24-1,
Funabashi, Chiba, Japan
Corresponding author: Hei, X. ([email protected])
Source title: Proceedings - 2011 7th International Conference on Computational Intelligence and
Security, CIS 2011
Abbreviated source title: Proc. - Int. Conf. Comput. Intell. Secur., CIS
Monograph title: Proceedings - 2011 7th International Conference on Computational
Intelligence and Security, CIS 2011
Issue date: 2011
Pages: 1418-1421
Language: English
ISBN-13: 9780769545844
Conference name: 2011 7th International Conference on Computational Intelligence and
Security, CIS 2011
Conference location: Sanya, Hainan, China
Sponsor: Xidian University; HIC; Beijing Normal University; Guangdong University of
Technology
United States
Abstract: In recent years, with the development of high speed railway, the speed and capability
of the train constantly improve, and traffic density gets more and more serious. As a result the
requirement to the reliability and safety of the high speed train operation enhances increasingly.
However, safety of high speed railway extremely relies on its surrounding environment. This
paper discusses the key technical problems about ensuring the safe operation of the high-speed
train, and puts forward a high-speed railway safety framework based on CPS (Cyber Physical
Systems). It uses the thought of wireless sensor network to design the high-speed railway
infrastructure, in order to timely collect, transfer, analyze and process the surrounding
environment information. Further, this paper discusses the system network structure,
heterogeneous network access technology, key technology of heterogeneous information fusion as
well as network fault-tolerant technology for the high-speed train safety monitoring system. The
aim is to forecast before a disaster or accurate alarm after a disaster, by which to avoid or reduce
the danger, and make the train operation keep fail-safe. © 2011 IEEE.
Main heading: Railroad transportation
Controlled terms: Accident prevention - Artificial intelligence - Disaster prevention Heterogeneous networks - Information fusion - Railroad cars - Railroad engineering Railroads - Speed - Technology
Uncontrolled terms: CPS - Cyber-physical systems - Fault-tolerant - Heterogeneous
information - High speed trains - High-speed railways - Information fusion technology
- Key technologies - Network access - Network structures - Safe operation Surrounding environment - Technical problem - Traffic densities - Train operations
Classification code: 931.1 Mechanics - 914.1 Accidents and Accident Prevention - 903.1
Information Sources and Analysis - 901 Engineering Profession - 723.4 Artificial
Intelligence - 723 Computer Software, Data Handling and Applications - 722 Computer
Systems and Equipment - 717 Optical Communication - 716 Telecommunication; Radar,
Radio and Television - 682.1.1 Railroad Cars - 682 Railroad Rolling Stock - 681
Railway Plant and Structures - 433.1 Railroad Transportation, General
DOI: 10.1109/CIS.2011.316
Database: Compendex
128.
Title: A concurrent scheduling model of distributed train control system
Authors: Hei, Xinhong1 ; Ma, Weigang1 ; Gao, Jinli1 ; Xie, Guo2
Author affiliation: 1 School of Computer Science and Engineering, Xi'An University of
Technology, No.5 Jinhua South Road, Xi'an, China
2 Graduate School of Science and Technology, Nihon University, Narashino Dai 7-24-1,
Funabashi, Chiba, Japan
Corresponding author: Hei, X. ([email protected])
Source title: Proceedings of 2011 IEEE International Conference on Service Operations,
Logistics and Informatics, SOLI 2011
Abbreviated source title: Proc. IEEE Int. Conf. Serv. Oper., Logist. Informatics, SOLI
Monograph title: Proceedings of 2011 IEEE International Conference on Service Operations,
Logistics and Informatics, SOLI 2011
Issue date: 2011
Pages: 478-483
Language: English
ISBN-13: 9781457705731
Conference name: 2011 IEEE International Conference on Service Operations, Logistics and
Informatics, SOLI 2011
United States
Abstract: Distributed railway interlocking System (DRIS) and the process logics of the
interlocking devices in DRIS are proposed in our previous research. In DRIS, the signal, track unit
and switch point have their own control logic. When a train requests a route, the devices which are
related to the requested route will cooperate to complete the route reservation for the train. Such a
process is a typical concurrent and asynchronous process, which possibly brings about conflict and
confusion, and reduces efficiency of train operation. In this paper, a self-adaptive scheduling
(dispatch) model is proposed in order to ensure train safety. The model introduces priority and
weight to train by which the scheduling efficiency is possible to be improved. Petri nets are used
to model and analyze the proposed approach based on a typical concurrent scene. The analysis
result shows that the model is feasible, and it contributes to the future development and
application of the DRIS. © 2011 IEEE.
Main heading: Scheduling
Controlled terms: Information science - Interlocking signals - Petri nets - Railroad
transportation
Uncontrolled terms: A-train - Concurrent request - Control logic - Interlocking
devices - Interlocking systems - Process logic - Railway interlocking system Route reservations - Scheduling models - Scheduling strategies - Self-adaptive Train control systems - Train operations - Train safety
Classification code: 433.1 Railroad Transportation, General - 433.4 Railway Traffic Control
- 903 Information Science - 912.2 Management - 921.4 Combinatorial Mathematics,
Includes Graph Theory, Set Theory
DOI: 10.1109/SOLI.2011.5986608
Database: Compendex
129.
Title: A novel fire recognition algorithm based on flame's Multi-features Fusion
Authors: Hongliang, Li1, 2 ; Qing, Liu3 ; Sun'an, Wang1
Author affiliation: 1 School of Mechanical Engineering, Xi' an Jiaotong University, Xi'an,
China
2 ZhuZhou Times Electronic Technology Co., Ltd., ZhuZhou, China
3 Engineering Training Center, Xi'an University of Technology, Xi'an, China
Corresponding author: Hongliang, L. ([email protected])
Source title: 2012 International Conference on Computer Communication and Informatics,
ICCCI 2012
Abbreviated source title: Int. Conf. Comput. Commun. Informatics, ICCCI
Monograph title: 2012 International Conference on Computer Communication and Informatics,
ICCCI 2012
Issue date: 2012
Language: English
ISBN-13: 9781457715822
Conference name: 2012 International Conference on Computer Communication and Informatics,
ICCCI 2012
Conference date: January 10, 2012 - January 12, 2012
Conference location: Coimbatore, India
United States
Abstract: In this paper, a novel fire recognition algorithm based on muti-features fusion(MFF)
with self-adaptive, self-learning and fault tolerance is proposed after analyzing the characteristics
of the burning fire, and taking the flame's twinkling frequency and its dynamic contour into
account. First, picking up the dynamic video of fire, extracting the eigenvector of suspicious fire
area, and using disperse FFT to the eigenvector to build a quantified distinguishing rule; then,
checking the nearby frame which changes most, qualitative and quantitative analyzing its changes
to form a quantified edge feature. After quantifying all the characteristic parameters, a probability
update function is used to fusion such muti-features to carry out the probability recognition of fire.
Tests show that MFF algorithm of this paper has the abilities of self-adaptive, self-learning and
anti-interference to white spots from moving or static objects, even under a very complex
circumstance with spotlight, automobile light and illumination changing. © 2012 IEEE.
Main heading: Feature extraction
Controlled terms: Communication - Eigenvalues and eigenfunctions - Fault tolerance Fires - Information science - Probability
Uncontrolled terms: Anti-interference - Characteristic parameter - Dynamic contour Edge features - Fire areas - Fire recognition - Flame Detection - Multi-feature
fusion - Picking up - Probability Model - Quantitative analyzing - Self-adaptive
- Self-learning - Static objects - White spots
Classification code: 716 Telecommunication; Radar, Radio and Television - 722.4 Digital
Computers and Systems - 903 Information Science - 914.2 Fires and Fire Protection 921.1 Algebra - 922.1 Probability Theory
DOI: 10.1109/ICCCI.2012.6158911
Database: Compendex
130.
Title: Review of data-parallel programming model
Authors: Hou, Ke1, 2 ; Zhang, Jing1 ; Li, Jun-Huai1
Author affiliation: 1 Institute of Computer Science and Engineering, Xi'an University of
2 School of Economic Management, Xi'an Shiyou University, Xi'an, China
Corresponding author: Hou, K.
Source title: ICCSE 2012 - Proceedings of 2012 7th International Conference on Computer
Science and Education
Abbreviated source title: ICCSE - Proc. Int. Conf. Comput. Sci. Educ.
Monograph title: ICCSE 2012 - Proceedings of 2012 7th International Conference on Computer
Issue date: 2012
Pages: 629-633
Language: English
ISBN-13: 9781467302425
Conference name: 2012 7th International Conference on Computer Science and Education,
ICCSE 2012
Conference location: Melbourne, VIC, Australia
Sponsor: University of Melbourne
United States
Abstract: Data-parallel programming model (DPPM for short) specialized for data-intensive
computing becomes considerable popular because it simplifies the development of distributed
parallel programs. DPPMs are classified into two categories: 1) MapReduce, Dryad; and 2)
Piccolo, Function Flow, etc. based on their maturity. We analyze and compare these typical models
by deployment, application, data partition, communication, fault tolerance and so on. Finally, we
pay more attention to discussing development of key technologies which are deployment of
storage and computation, task partition and fault tolerance in DPPM. © 2012 IEEE.
Main heading: Digital storage
Controlled terms: Computer science - Education computing - Engineering education Fault tolerance - Parallel architectures - Parallel programming
Uncontrolled terms: Data partition - Data-intensive computing - Data-parallel
programming - DPPM - Key technologies - Map-reduce - Parallel program Task partition - Typical model
Classification code: 721 Computer Circuits and Logic Elements - 722 Computer Systems
and Equipment - 723 Computer Software, Data Handling and Applications - 723.1
Computer Programming - 901.2 Education
DOI: 10.1109/ICCSE.2012.6295154
Database: Compendex
131.
Title: Fast terahertz continuous-wave detector based on weakly ionized Plasma
Authors: Hou, Lei1 ; Shi, Wei1
Author affiliation: 1 Department of Applied Physics, Xi'An University of Technology, Xi'an
710048, China
Corresponding author: Hou, L. ([email protected])
Source title: IEEE Electron Device Letters
Abbreviated source title: IEEE Electron Device Lett
Volume: 33
Issue: 11
Issue date: 2012
Pages: 1583-1585
Language: English
ISSN: 07413106
CODEN: EDLEDZ
Abstract: A fast terahertz (THz) continuous-wave detector based on weakly ionized plasma is
developed. Its response time can be less than a microsecond according to calculation. By
comparing with a Schottky diode in a THz interferometer, we illustrated that our detector has
faster response time, linear responsivity, and higher signal-to-noise ratio. © 2012 IEEE.
Main heading: Terahertz wave detectors
Controlled terms: Detectors - Ionization - Plasmas - Response time (computer
systems) - Schottky barrier diodes - Terahertz waves
Uncontrolled terms: Continuous waves - Responsivity - Schottky diodes - Terahertz
- Weakly ionized plasma
Classification code: 932.3 Plasma Physics - 914 Safety Engineering - 802.2 Chemical
Reactions - 732.2 Control Instrumentation - 722.4 Digital Computers and Systems -
714.2 Semiconductor Devices and Integrated Circuits - 711 Electromagnetic Waves
DOI: 10.1109/LED.2012.2214471
Database: Compendex
132.
Title: Enhanced terahertz emission from photoconductive antenna with ohmic contact electrodes
biased by out-of-phase voltages
Authors: Hou, Lei1 ; Shi, Wei1 ; Han, Xiaowei2 ; Yan, Zhijin1
Author affiliation: 1 Department of Applied Physics, Xi'An University of Technology, Xi'an
710048, China
2 Xiaowei Han (Institute of Physical and Electrical Engineering, Weinan Normal University,
Weinan 714000, China
Corresponding author: Hou, L.
Source title: Electronics Letters
Abbreviated source title: Electron. Lett.
Volume: 48
Issue: 13
Issue date: June 21, 2012
Pages: 780-781
Language: English
ISSN: 00135194
CODEN: ELLEAK
Publisher: Institution of Engineering and Technology, Six Hills Way, Stevenage, SG1 2AY,
United Kingdom
Abstract: Terahertz emission power is one of the main obstacles for photoconductive antenna
applications. In conventional photoconductive antennas, the electrical field distributes in a narrow
area near to the anode, which limits the emission efficiency. A SI-GaAs antenna with AuGeNi
ohmic contact electrodes was prepared by the present authors' improved fabrication technology,
and the electrical field distributes more evenly when one electrode was biased by a DC square
wave pulse or two electrodes were biased by two DC square wave pulses with opposed phases.
Compared with the conventional antennas, the terahertz emission efficiency of the antenna was
improved by one order when biased by the out-of-phase voltages and illuminating the whole
antenna gap to suppress the carrier screening and radiation screening. © 2012 The Institution of
Engineering and Technology.
Main heading: Antennas
Controlled terms: Electric contactors - Electrodes - Microwave antennas - Ohmic
contacts
Uncontrolled terms: Contact electrodes - Electrical field - Emission efficiencies Fabrication Technologies - Out of phase - Photoconductive antennas - Radiation
screening - SI-GaAs - Square waves - Terahertz emissions
Classification code: 704 Electric Components and Equipment - 704.1 Electric Components
- 715 Electronic Equipment, General Purpose and Industrial - 716 Telecommunication;
Radar, Radio and Television
DOI: 10.1049/el.2012.1402
Database: Compendex
133.
Title: Fast broadband inexpensive weakly ionised plasma detector used in terahertz
continuous-wave imaging
Authors: Hou, Lei1 ; Shi, Wei1
Author affiliation: 1 Xi'An University of Technology, Department of Applied Physics, Xi'an
710048, China
Corresponding author: Hou, L.
Source title: Electronics Letters
Abbreviated source title: Electron. Lett.
Volume: 48
Issue: 20
Pages: 1286-1287
Language: English
ISSN: 00135194
CODEN: ELLEAK
Publisher: Institution of Engineering and Technology, Six Hills Way, Stevenage, SG1 2AY,
United Kingdom
Abstract: A continuous-wave terahertz (THz) detector based on weakly ionised plasma in a
discharged neon lamp has been developed. The inexpensive detector has a wide spectral response
range and a fast response time, which were illustrated by experiment. The detector was used in a
THz imaging system and obtained a THz image of a three-dimensional object. The image has a
high contrast that means the detector is competent for THz non-destructive testing. © 2012 The
Institution of Engineering and Technology.
Main heading: Terahertz wave detectors
Controlled terms: Detectors - Electric lighting - Ionization - Nondestructive
examination - Three dimensional
Uncontrolled terms: Continuous waves - Continuous-wave terahertz - Fast response time
- High contrast - Non destructive testing - Spectral response - Tera Hertz Three-dimensional object - Weakly ionised plasma
Electric Lighting - 732.2 Control Instrumentation - 802.2 Chemical Reactions - 902.1
Engineering Graphics - 914 Safety Engineering
DOI: 10.1049/el.2012.2835
Database: Compendex
134.
Title: 3-D hydrodynamic model for free-surface flows and sediment transport on unstructured
σ-coordinate grid. Part I. Numerical scheme
Authors: Hu, Dechao1, 2 ; Zhang, Hongwu1 ; Ha, Anying3 ; Zhao, Weiyang4
Author affiliation: 1 State Key Laboratory of Hydroscience and Engineering, Tsinghua
University, Beijing 100084, China
2 Changjiang River Scientific Research Institute, Wuhan 430010, China
4 Changjiang Design and Research Institute of Waterway, Wuhan 430011, China
Corresponding author: Hu, D. ([email protected])
Volume: 30
Issue: 6
Pages: 221-229
Language: Chinese
ISSN: 10031243
Abstract: A formulation of 3-D hydrodynamic model is proposed for simulation of complex
free-surface flows and sediment transport in natural rivers on unstructured, σ-coordinate grids.
Two computation steps are adopted to solve the equations with a pressure-splitting and θ
semi-implicit method. First, free surface and provisional velocity filed are obtained by solving a
2-D Poisson equation; second, non-hydrostatic pressures are computed by solving a 3-D Poisson
equation and the provisional velocity filed is corrected. In constructing this 3-D Poisson equation,
the methods of BOM model were adopted, while its mode-split technique was discarded to
overcome the inconsistencies. In the sediment transport model that was developed on the
hydrodynamic model, an Eulerian-Lagrangian Method (ELM) is used to solve the governing
equations, so that the computation time steps are not restricted to the CFL stability conditions. ©
Copyright.
Controlled terms: Anoxic sediments - Fluid dynamics - Hydrostatic pressure Lagrange multipliers - Numerical methods - Numerical models - Poisson equation Sediment transport - Sedimentology - Sediments
Uncontrolled terms: Flows - Free surfaces - Sediment dynamics - Three dimensions
- Unstructured grid
Classification code: 481.1 Geology - 483 Soil Mechanics and Foundations - 483.1 Soils
and Soil Mechanics - 631 Fluid Flow - 902.1 Engineering Graphics - 921 Mathematics
Database: Compendex
135.
Title: Continuity conditions for developable CE-Bézier surfaces with multiple shape parameters
Authors: Hu, Gang1, 2 ; Ji, Xiaomin2 ; Qin, Xinqiang1
Author affiliation: 1 School of Science, Xi'an University of Technology, Xi'an 710048, China
2 Faculty of Mechanical and Precision Instrument Engineering, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Hu, G. ([email protected])
Source title: Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University
of Science and Technology (Natural Science Edition)
Abbreviated source title: Huazhong Ligong Daxue Xuebao
Volume: 40
Issue: 4
Pages: 54-58
Language: Chinese
ISSN: 16714512
Publisher: Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
Abstract: Complex developable surfaces in engineering can not be described by using a single
developable surface. Thus, the continuity conditions of developable CE-Be´zier surfaces with
multiple shape parameters were investigated. Following the analysis of some properties about
developable CE-Be´zier surfaces, the necessary and sufficient conditions of G1 continuity,
Farin-Behm G2 continuity and G2 Beta continuity between two adjacent developable CE-Be´zier
surfaces were presented. Finally, some applications in developable CE-Be´zier surfaces design
were discussed. The modeling examples illustrate that the continuity conditions of the developable
CE-Be´zier surfaces provide a valuable way for the design of developable surfaces.
Main heading: Engineering
Controlled terms: Mathematical models
Uncontrolled terms: Continuity conditions - Developable surfaces - Duality - Shape
parameters - Sufficient conditions
Classification code: 901 Engineering Profession - 921 Mathematics
Database: Compendex
136.
Title: Geometric design and shape adjustment for developable B-spline surfaces with multiple
shape parameters
Authors: Hu, Gang1, 2 ; Ji, Xiao-Min1 ; Qin, Xin-Qiang2
2 School of Science, Xi'an University of Technology, Xi'an 710048, China
Source title: Yingyong Kexue Xuebao/Journal of Applied Sciences
Abbreviated source title: Yingyong Kexue Xuebao
Volume: 30
Issue: 3
Pages: 324-330
Language: Chinese
ISSN: 02558297
CODEN: YKXUD4
Publisher: Shanghai Science and Technology Press, P.O. Box 123, 99 Shangda Road, Shanghai,
200444, China
Abstract: To solve the problems in adjusting and controlling shapes of developable surfaces, two
explicit and efficient methods of computer-aided design for developable surfaces with multiple
local shape parameters are proposed. A class of novel quasi-B-spline basis functions with two
shape parameters is presented to construct B-spline curves with multiple shape parameters, which
is an extension of the classical cubic uniform B-spline basis functions. Following the idea of
duality between points and planes in 3D projective space, the corresponding developable
quasi-B-spline surfaces with multiple shape parameters are represented using control planes with
quasi-B-spline basis functions. The developable quasi-B-spline surfaces inherit the outstanding
properties of the B-spline surfaces, with good performance in adjusting the local shapes by
changing the two shape parameters. In the particular case where shape parameters are both equal
to 1, the developable quasi-B-spline surface is a developable B-spline surface. In addition, some
properties of the developable quasi-B-spline surfaces and applications in developable surfaces
design are discussed. Modeling examples illustrate that the developable quasi-B-spline surfaces
provide two valuable ways for the design of developable surfaces.
Controlled terms: Computer aided design - Curve fitting - Interpolation
Uncontrolled terms: B spline curve - Control planes - Developable surfaces - Duality
- Shape parameters
Classification code: 723.5 Computer Applications - 921.6 Numerical Methods
DOI: 10.3969/j.issn.0255-8297.2012.03.018
Database: Compendex
137.
Title: Geometric design and adjustment of shape for developable quartic λ-Bézier surfaces with
shape parameters
Authors: Hu, Gang1, 2 ; Ji, Xiao-Min2, 3 ; Qin, Xin-Qiang1 ; Shen, Xiao-Qin1
Author affiliation: 1 School of Science, Xi'an University of Technology, Xi'an 710048, China
Xi'an 710048, China
3 College of the Arts, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Ji, X.-M. ([email protected])
Source title: Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University
Abbreviated source title: Shanghai Jiaotong Daxue Xuebao
Volume: 46
Issue: 4
Pages: 601-606
Language: Chinese
ISSN: 10062467
CODEN: SCTPDH
Publisher: Shanghai Jiao Tong University, 2200 Xietu Rd, Shanghai, 200032, China
Abstract: To solve the problems in adjusting and controlling shapes of developable surfaces, two
direct explicit and efficient methods of computer-aided design for developable surfaces with local
shape parameters were proposed. Firstly, following the important idea of duality between points
and planes in 3D projective space, the developable quartic λ-Be´zier surfaces with shape
parameters were represented using control planes with quartic λ-Be´zier basis functions. The
developable quartic λ-Be´zier surfaces inherit the outstanding properties of the Be´zier surfaces,
with a good performance on adjusting their local shapes by changing the shape parameters. In the
particular case where λ is equal to 0, the developable quartic λ-Be´zier surface is a developable
Be´zie surface. And then, the conditions of G2 continuity and C2 continuity between two adjacent
developable quartic λ-Be´zier surfaces were presented. Finally, some properties of the developable
quartic λ-Be´zier surfaces and applications in developable surfaces design were discussed. The
modeling examples illustrate that the developable quartic λ-Be´zier surfaces provide two valuable
ways for the design of developable surfaces.
Controlled terms: Computer aided design
Uncontrolled terms: Continuity conditions - Control planes - Developable surfaces Duality - Shape parameters
Classification code: 723.5 Computer Applications
Database: Compendex
138.
Title: Regional feature self-adaptive image fusion method based on nonsubsampled steerable
pyramid transform
Authors: Hu, Gang1, 2 ; Ji, Xiaomin1 ; Liu, Zhe3 ; Qin, Xinqiang2
2 School of Science, Xi'an University of Technology, Xi'an 710048, China
3 School of Science, Northwestern Polytechnical University, Xi'an 710072, China
Source title: Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and
Computer Graphics
Abbreviated source title: Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao
Volume: 24
Issue: 5
Pages: 636-648
Language: Chinese
ISSN: 10039775
CODEN: JFTXFX
Publisher: Institute of Computing Technology, P.O. Box 2704, Beijing, 100080, China
Abstract: To conquer the weakness of existing traditional image fusion method based on the
steerable pyramid transform, a novel adaptive fusion algorithm of multi-sensor images based on
nonsubsampled steerable pyramid transform (NSSPT) is proposed. Firstly, the NSSPT is
performed on the source images with different scales and directions, thus both the low and high
frequency subband coefficients together with varieties of directional bandpass subband
coefficients are obtained. Secondly, for the low frequency subband coefficients, a selection
principle based on the local area difference of the coefficient's mean value is presented, while for
the high frequency subband coefficients and varieties of directional bandpass subband coefficients,
a scheme based on the local area average energy combined with the weighted average scheme is
presented, which is also consistent with the regional feature of the high and bandpass sub-images.
Finally, the fused image is obtained by performing the inverse NSSPT on the combined
coefficients. The experimental results show that the proposed approach not only can avoid the
introduction of the artifacts and high frequency noise, but also can significantly outperform the
traditional image fusion methods based on the pyramid transform, wavelet transform or steerable
pyramid transform in terms of both visual quality and objective evaluation criteria.
Main heading: Image fusion
Controlled terms: Computer applications - Mathematical models
Uncontrolled terms: Adaptive fusion - Average energy - Band pass - Different scale
- Fused images - Fusion rule - High frequency - High-frequency noise - Image
fusion methods - Local area energy - Low and high frequencies - Low frequency Mean values - Multi sensor images - Nonsubsampled - Objective evaluation criteria Pyramid transform - Regional feature - Selection principles - Self-adaptive
Source images - Steerable pyramid transforms - Subband coefficients - Subimages Visual qualities - Weighted-average scheme
Classification code: 723.2 Data Processing and Image Processing - 723.5 Computer
Database: Compendex
139.
Title: A theoretical model study on the Impact of Incubator Network on Incubated Corporate
Financing
Authors: Hu, Haiqing1 ; Bai, Tao1 ; Zhang, Lang1 ; Jin, Liang1
Author affiliation: 1 School of Business Administration, Xi'an University of Technology, Xi'an
Shaanxi, China
Corresponding author: Hu, H. ([email protected])
Volume: 3
Issue date: 2011
Pages: 307-311
Language: English
ISBN-13: 9780769545233
United States
Abstract: The incubated corporates is a kind of small high-tech enterprises which locate in the
incubator. By the features like high risk, high income and information asymmetry, financing is a
bottleneck restricting their development. The attribute of the Incubator Network make it be an
effective way to solve the incubated corporate financing difficulties. On this basis, this article
studies on how the incubated corporates use their own superiority in network and relative
information to financing by themselves. From the network's angle, put the incubator network,
incubated corporate financing into an organic framework system, building up a model of incubator
network effects incubated corporate's financing methods. © 2011 IEEE.
Main heading: Finance
Controlled terms: Industrial engineering - Information management - Innovation
Uncontrolled terms: Corporates - Incubated corporate financing - Information asymmetry
- Network effects - Relative information - Theoretical models
Classification code: 911.1 Cost Accounting - 912 Industrial Engineering and Management
DOI: 10.1109/ICIII.2011.356
Database: Compendex
140.
Title: Hardness enhancement of CrN coatings by C-doping
Authors: Hu, Pengfei1 ; Jiang, Bailing1 ; Li, Hongtao1
Corresponding author: Hu, P. ([email protected])
Source title: Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology
Abbreviated source title: Zhenkong Kexue yu Jishu Xuebao
Volume: 32
Issue: 2
Pages: 158-162
Language: Chinese
ISSN: 16727126
CODEN: CKKSDV
Abstract: The carbon-doped CrN coatings were deposited by closed-field unbalanced magnetron
sputtering ion plating on silicon substrates. The impacts of the growth conditions on the
microstructures and mechanical properties of the CrN coatings were characterized with X-ray
diffraction, X-ray photoelectron spectroscopy, atomic force microscopy, transmission electron
microscopy and conventional mechanical probes. The results show that the C-target current
significantly affects the microstructures and mechanical properties of the coating, and that sp2, sp3
and Cr-C bonds dominate in the carbon bonding. As the current increases from 0 to 1.5 A, the
micro-hardness of the coatings, with decreased grain size, increases by almost 19%, from 1930
HV to 2300 HV, and the current increase also resulted in a polycrystalline to amorphous phase
transition.
Main heading: Chromate coatings
Controlled terms: Amorphous materials - Atomic force microscopy - Hardness - Ion
implantation - Magnetron sputtering - Microstructure - Transmission electron
microscopy - X ray diffraction - X ray photoelectron spectroscopy
Uncontrolled terms: AFM - Carbon bonding - Closed-field unbalanced magnetron
sputtering - CrCN coating - CrN coating - Current increase - Grain size Growth conditions - Hardness enhancement - Ion plating
- Mechanical probes Microstructures and mechanical properties - Polycrystalline - Silicon substrates - XRD
Classification code: 933 Solid State Physics - 932.1 High Energy Physics - 813.2
Coating Materials - 951 Materials Science - 801 Chemistry - 715.1 Electronic
Equipment, non-communication - 421 Strength of Building Materials; Mechanical Properties
- 741.3 Optical Devices and Systems
DOI: 10.3969/j.issn.1672-7126.2012.02.15
Database: Compendex
141.
Title: Outliers-tolerant test algorithms for error models of radar measurement
Authors: Hu, Shaolin1, 2 ; Yu, Hui1 ; Wang, Xiaofeng2 ; Lou, Lin1
Author affiliation: 1 State Key Laboratory of Astronautic Dynamics, Xi'an Satellite Control
Center, Xi'an 710043, China
2 School of Automation, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Hu, S.
Source title: Zhongguo Kongjian Kexue Jishu/Chinese Space Science and Technology
Abbreviated source title: Zhongguo Kongjian Kexue Jishu
Volume: 31
Issue: 6
Pages: 8-14+20
Language: Chinese
ISSN: 1000758X
CODEN: ZKKJEK
Publisher: Chinese Academy of Space Technology, P.O. Box 9622, Bejing, 100086, China
Abstract: The precision and reliability of spacecraft navigation mainly relies on the accuracy of
error models of the radar system and measurement data. For the pulse radar, a series of new test
algorithms were built, including the F-test algorithm and the outliers-tolerant F-test algorithm to
test the fittness of the error models with measurement data, and the T-test algorithm and
outliers-tolerant T-test algorithm to diagnose the significance of error components. These
algorithms were based on the theory of statistical hypothesis test and can be used in two different
cases with or without outliers in measurement data respectively. These algorithms were tested with
practical measurement data from the pulse radar in tracking a spacecraft. The results show that
these algorithms have good outliers-tolerance and adaptation, and are available to diagnose
whether the error models of radar data are correct.
Main heading: Radar tracking
Controlled terms: Algorithms - Measurements - Navigation - Radar measurement Radar systems - Statistical tests - Statistics - Surface discharges - Tracking radar
Uncontrolled terms: Error components - Error model - Hypothesis tests Measurement data - Model diagnosis - Outliers tolerance - Pulse radars - Radar
data - Spacecraft navigation - Statistical hypothesis test - Test algorithms
Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring
Instruments - 922.2 Mathematical Statistics - 944 Moisture, Pressure and Temperature, and
Radiation Measuring Instruments - 921 Mathematics - 716.3 Radio Systems and
Equipment - 716.2 Radar Systems and Equipment - 701.1 Electricity: Basic Concepts and
Phenomena - 723 Computer Software, Data Handling and Applications
DOI: 10.3780/j.issn.1000-758X.2011.06.002
Database: Compendex
142.
Title: Optimal strategy and timing of merging multi-targets
Authors: Hu, Wen-Xiu1 ; Zhang, Wei-Guo1 ; Zhang, Tao1
Author affiliation: 1 School of Business Administration, Xi'an University of Technology, Xi'an
710054, China
Corresponding author: Zhang, W.-G.
Source title: Xitong Gongcheng Lilun yu Shijian/System Engineering Theory and Practice
Abbreviated source title: Xitong Gongcheng Lilum yu Shijian
Volume: 32
Issue: 1
Pages: 20-26
Language: Chinese
ISSN: 10006788
CODEN: XGLSE2
Publisher: Systems Engineering Society of China, Xitong Yanjiusuo, Beijing, 100080, China
Abstract: Through introducing the probability of success, the paper proposed the single-target
merger timing under double uncertainty (both the size and the realization of the synergy are
uncertain). Furthermore, the paper extended the model to multi-targets merging situation, figuring
out the merger timing under both independent merger strategy and sequential merger strategy. The
paper also pointed out the optimal merger strategy of multi-targets merging through comparing
and contrasting the threshold and acquirer's firm value of two merging strategies. Because of the
extra information value of sequential merger, the threshold of sequential merger strategy is smaller
than that of independent merger strategy, and there exists a sequential merger interval where
sequential merger strategy is superior to independent merger strategy. Finally, through numerical
analyzing the paper investigated the impact of correlation coefficient, success probability, and the
acquirer's bargaining power on the threshold and the sequential merger interval.
Main heading: Merging
Controlled terms: Mergers and acquisitions
Uncontrolled terms: Information value - Merger strategy - Merger timing Multi-targets - Probability of success
Classification code: 723.1 Computer Programming - 912 Industrial Engineering and
Management
Database: Compendex
143.
Title: Empirical research on the level and quality of gains from ST stocks in China
Authors: Hu, Wenxiu1 ; Niu, Jing1 ; Mu, Qingbang1
Author affiliation: 1 Xi'an University of Technology, Yanxiang Road No.58, Xi'an, 710054,
Shaanxi, China
Corresponding author: Hu, W.
Volume: 143 AISC
Monograph title: Business, Economics, Financial Sciences, and Management
Issue date: 2012
Pages: 89-95
Language: English
ISSN: 18675662
ISBN-13: 9783642279652
Conference name: 2011 International Conference on Business, Economics, and Financial
Sciences, Management, BEFM 2011
Conference location: Jeju Island, Korea, Republic of
Abstract: The paper investigated the question whether excess profits exist among ST stocks in
China, under the circumstances of adjusting risk and not adjusting risk. Firstly, the paper made a
group of t-test of significant difference between ST stocks and the financial market and normally
listed stocks, on the holding income and accumulative total income; Then, the article made and
empirical study on the investing risk of ST stocks by estimating their Beta coefficients. The result
shows that, only the ST stocks and *ST stocks outperformed the financial market and normally
listed stocks in the short run by the geometry average earnings, but it is not always the case in the
long run. © 2012 Springer-Verlag GmbH.
Main heading: Risk perception
Controlled terms: Finance - Profitability
Uncontrolled terms: Beta coefficient - Empirical research - Empirical studies Excess profit - Financial market - ST stock
Classification code: 911.2 Industrial Economics - 922.1 Probability Theory
DOI: 10.1007/978-3-642-27966-9_13
Database: Compendex
144.
Title: Surface/interface effect and size/configuration dependence on the energy release in
nanoporous membrane
Authors: Hu, Yifeng1 ; Li, Qun2 ; Shi, Junping1 ; Chen, Yiheng2
Author affiliation: 1 School of Civil Engineering and Architecture, Xi'An University of
Technology, No. 5 South JinHua Road, Xi'an 710048, China
2 State Key Laboratory for Mechanical Structural Strength and Vibration, School of Aerospace,
Xi'An Jiaotong University, No. 28 Xianning Western Road, Xi'an 710049, China
Corresponding author: Hu, Y.
Source title: Journal of Applied Physics
Abbreviated source title: J Appl Phys
Volume: 112
Issue: 3
Language: English
ISSN: 00218979
CODEN: JAPIAU
Abstract: This paper deals with the surface/interface effect and the size/configuration
dependence on the M-integral representing the energy release due to the self-similar expansion of
multiple nanosized pores in nanoporous membrane. An explicit formulation of the M-integral is
derived by considering the surface/interface effect induced from the residual surface tension and
the surface Lame´constants based on the Gurtin-Murdoch surface model. It is concluded that the
surface/interface effect on the energy release is primarily determined by the surface tension,
whereas the surface Lame´constants yield much less influence than the surface tension. Moreover,
the energy release significantly relies on the size and configuration of nanopores in nanoporous
membrane, which even yields the energy absorption depending on the loading level especially
when the pore size is less 20 nm. The two-state M-integral analysis is performed to clarify the
mutual effects of surface/interface and size/configuration on the M-integral to explain the energy
release or absorption in nanoporous membrane. © 2012 American Institute of Physics.
Main heading: Loading
Controlled terms: Surface tension
Uncontrolled terms: Energy release - Explicit formulation - Loading level M-integral - Nanoporous membrane - Nanosized pores - Self-similar - Surface
models - Two-state
Classification code: 672 Naval Vessels - 931.2 Physical Properties of Gases, Liquids and
Solids
DOI: 10.1063/1.4740224
Database: Compendex
145.
Title: Experimental study of nonlinear K-G model for unsaturated loess
Authors: Hu, Zai-Qiang1 ; Ma, Su-Qing1 ; Li, Hong-Ru1 ; Zhao, Kai1 ; Tian, Yuan1
Xi'an 710048, China
Corresponding author: Hu, Z.-Q. ([email protected])
Volume: 33
Issue: SUPPL. 1
Pages: 56-60
Language: Chinese
ISSN: 10007598
Abstract: The K-G model is much better than E-μ model for its each parameter directly contacts
with soil modulus and convenient for the nonlinear theory and calculation analysis of geotechnical
engineering. Taking the Yongdeng unsaturated loess in Western Gansu as the object of study, a
large number of unsaturated loess conventional triaxial tests under different humidities is carried
out; and then different initial saturations under the K-G model parameters are obtained, the change
rule of these parameters with different initial saturations is studied. The relevant expressions of
model parameters and initial saturation are established. So that in actual project, using the
measured unsaturated loess humidity indicator, we can get the unsaturated loess parameters of
K-G model for moistening numerical simulation analysis and avoid suction measurement and
calculation. The result has a certain practical value.
Main heading: Geologic models
Controlled terms: Geotechnical engineering - Hydraulic conductivity
Uncontrolled terms: Calculation analysis - Conventional triaxial test - Experimental
studies - Initial saturation - K-G model - Model parameters - Non-linear theory Soil modulus - Suction measurements - Unsaturated loess
Classification code: 409 Civil Engineering, General - 481 Geology and Geophysics 481.1 Geology - 483 Soil Mechanics and Foundations - 632.1 Hydraulics
Database: Compendex
146.
Title: High barrier graphene oxide nanosheet/poly(vinyl alcohol) nanocomposite films
Authors: Huang, Hua-Dong1 ; Ren, Peng-Gang2 ; Chen, Jun1 ; Zhang, Wei-Qin1 ; Ji, Xu1 ; Li,
Zhong-Ming1
Author affiliation: 1 College of Polymer Science and Engineering, State Key Laboratory of
Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
2 Institute of Printing and Packaging Engineering, Xi'an University of Technology, Xi'an, Shanxi
710048, China
Corresponding author: Li, Z.-M. ([email protected])
Source title: Journal of Membrane Science
Abbreviated source title: J. Membr. Sci.
Volume: 409-410
Pages: 156-163
Language: English
ISSN: 03767388
E-ISSN: 18733123
CODEN: JMESDO
Abstract: A simple and environmentally friendly method was proposed to prepare high barrier
graphene oxide nanosheet (GONS)/poly(vinyl alcohol) (PVA) nanocomposite films. Transmission
electrical microscope and two-dimensional wide angle X-ray diffraction techniques showed that
GONSs in PVA matrix were fully exfoliated, uniformly dispersed and highly oriented along the
surface of nanocomposite films. Fourier-transform infrared spectroscopy (FTIR) and differential
scanning calorimetry (DSC) measurements investigated the strong H-bonding interactions
between GONSs and PVA matrix. A remarkable improvement on barrier properties of GONS/PVA
nanocomposite films was achieved. Both O2 and water vapor permeability coefficients of PVA
film declined by about 98% and 68% at a low GONS loading of 0.72vol%. This was attributed to
excellent impermeable property of GONSs, their full exfoliation, uniform dispersion and high
alignment in the PVA matrix and the strong interfacial adhesion between GONSs and PVA matrix.
These results demonstrate that such a plate-like nanofiller blending method is an effective strategy
to design and fabricate high barrier polymer-based nanocomposite films and it will dramatically
promote the application of polymer film in the packaging industry. © 2012 Elsevier B.V.
Main heading: Nanocomposite films
Controlled terms: Blending - Differential scanning calorimetry - Loading - Polymer
films - Two dimensional - X ray diffraction
Uncontrolled terms: Application of polymers - Barrier films - Barrier properties Electrical microscopes - Environmentally-friendly - FTIR - Graphene oxides H-bonding interaction - Interfacial adhesions - Nanofiller - Packaging industry PVA films - Uniform dispersions - Vinylalcohol - Water vapor permeability - Wide
angle Xray diffraction
Classification code: 931.3 Atomic and Molecular Physics - 902.1 Engineering Graphics 802.3 Chemical Operations - 801 Chemistry - 712.1.2 Compound Semiconducting
Materials - 712.1 Semiconducting Materials - 672 Naval Vessels
DOI: 10.1016/j.memsci.2012.03.051
Database: Compendex
147.
Title: Research of magnetron sputtering plasma characteristics and load matching based on pulse
bias
Authors: Huang, Xiping1 ; Zhao, Suxia1 ; Sun, Qiang1 ; Chen, Guitao1
Author affiliation: 1 Department of Automation and Information Engineering, Xi'an University
of Technology, Shaanxi, China
Corresponding author: Huang, X. ([email protected])
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: A well performing thin film can be obtained by adding pulse bias on the magnetron
sputtering substrate. However, serious load voltage oscillation, caused by the capacitive
component in the plasma load, affects thin film deposition. The paper analyzes the cause of
producing oscillation theoretically based on the magnetron sputtering plasma load equivalent
circuit loop model. Although the voltage oscillation can be suppressed effectively by joining
inductor or a series unit of resistor and inductor between pulsed voltage power and load circuit,
the rising rate of pulsed voltage is reduced significantly. Considering this problem, a matching
circuit with series inductors and diodes connected in parallel unit in load loop is introduced in the
paper. Inductor inhibits oscillation and plays the role of current limiter. Freewheel diode
accelerates the rising rate of voltage when the pulse voltage changes direction. Simulation and
experimental verification were conducted, indicating that the method ensures the film quality by
suppressing oscillation and improving the rising rate of pulsed voltage at the same time. © 2012
IEEE.
Main heading: Bias voltage
Controlled terms: Electric inductors - Limiters - Magnetron sputtering
Uncontrolled terms: Capacitive components - Experimental verification - Film quality Load characteristics - Load matching - Load voltages - Loop models - Magnetron
sputtering plasma - Matching circuit - Plasma loads - Pulse bias - Pulse voltage Pulsed voltages - Rising rate - Series inductor - Thin-film depositions - Voltage
oscillation
Classification code: 713 Electronic Circuits - 713.3 Modulators, Demodulators, Limiters,
Discriminators, Mixers - 714 Electronic Components and Tubes - 715.1 Electronic
Equipment, non-communication
DOI: 10.1109/APPEEC.2012.6307547
Database: Compendex
148.
Title: Outage performance of opportunistic relaying systems with limited feedback
Authors: Hui, Hui1 ; Li, Wei-Qin1 ; Wu, Ya-Li1
Corresponding author: Hui, H. ([email protected])
Source title: Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
Abbreviated source title: Dianzi Yu Xinxi Xuebao
Volume: 34
Issue: 8
Pages: 2013-2017
Language: Chinese
ISSN: 10095896
CODEN: DKXUEC
Abstract: In this paper, the outage performance and diversity gain of amplify-and-forward
opportunistic relaying systems under the constraint of limited feedback are studied. With limited
feedback, the quantization error of Channel State Information (CSI) will impact the distinguishing
of the best relay and worsen the system performance. Considering this issue, the outage
performance is studied and its approximate analytical expression is derived for opportunistic
relaying systems with limited feedback. Further, the following two propositions are analyzed and
proved: with limited feedback, no matter how many potential relays in cooperation, the diversity
order can and only can be 2; with the increasing accuracy of feedback, the outage probability
approaches to that of the ideal opportunistic relaying systems. Simulation results verify the
analytical expression of the outage probability and the proposed propositions, which provide a
theoretical support for the design of relaying protocols under the constraint of limited feedback.
Main heading: Probability
Controlled terms: Cooperative communication - Electrical engineering - Signal
processing
Uncontrolled terms: Amplify-and-forward - Analytical expressions - Diversity gain Diversity order - Limited feedback - Opportunistic relaying - Outage performance Outage probability - Quantization errors
Classification code: 709 Electrical Engineering, General - 716.1 Information Theory and
Signal Processing - 722.3 Data Communication, Equipment and Techniques - 922.1
Probability Theory
DOI: 10.3724/SP.J.1146.2012.00024
Database: Compendex
149.
Title: The development of software platform for SVC in parameters optimization design and
analysis
Authors: Ji, Junpeng1 ; Zeng, Guang1 ; Zhang, Jinggang1 ; Liu, Haiwa1
XUT, Xi'an, China
Corresponding author: Ji, J. ([email protected])
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: Because the design process of TCR+FC type SVC device which is now widely used in
power system, involves a lot of factors and a wide range of the relevant device parameters, and a
lot of checking standards of device parameter, it is very big for the amount of design work which
usually is repetitive, and its design cycle is very long, and its design cost is very high. The general
parameters of SVC system, especially the FC filter network parameters, which strongly depend on
power grid system parameter, need to be analyzed and verified, therefore, the parameters of SVC
required to be optimized. As to the case of SVC, in order to solve the problem of the complicated
design process, this paper develops a software platform of SVC system parameter optimization
design and analysis. The interface of the software platform is concise and friendly, and involves an
area widely. The overall design of software platform is well modular. Each module is centered on
database. The input and output of data are very convenience. Not only all parameters of SVC
system, including the rated voltage, rated current, rated power, and error range etc., can be worked
out quickly by the platform, even including the models of some commonly used devices, but also
it can simulate operation effect of SVC in alliance with MATLAB/SIMULINK. Through
simulation analysis the optimal parameters can be obtained. By this software platform in design
process of SVC, the amount of design work is largely reduced, the design cycle is largely
shortened, and all this are benefit to the industrialization of SVC. © 2012 IEEE.
Controlled terms: Optimization
Uncontrolled terms: Design costs - Design cycle - Design process - Design work Device parameters - Error range - Filter networks - Input and outputs - Optimal
parameter - Optimization design
- Overall design - Parameter optimization Parameters optimization - Power grid system - Rated voltages - Simulation analysis Software platforms - SVC
Classification code: 408 Structural Design - 921.5 Optimization Techniques
DOI: 10.1109/APPEEC.2012.6307303
Database: Compendex
150.
Title: Research on selection method of Passive Power Filter topologies
Authors: Ji, Junpeng1 ; Zeng, Guang1 ; Liu, Haiwa1 ; Luo, Lei1 ; Zhang, Jinggang1
XUT, Xi'an, China
Asia, IPEMC
Volume: 4
Issue date: 2012
Pages: 2844-2848
Language: English
ISBN-13: 9781457720864
United States
Abstract: Passive Power Filter (PPF) is widely used in power system because of its advantages
in performance-price ratio. For PPF, there are several topologies, each of which has different
frequency characteristic. In power system, in order to achieve the certain filtering effect, it is
necessary to combine different filter topologies. Currently, the selection of PPF topologies is based
on the engineering practical experience of PPF designer. However, there is a lack in systematic
design method and scientific design basis. For this reason, this paper, taking the filtering effect and
filters cost as the design indices, deeply investigates the selection problem of PPF topologies, and
proposes a selection method of PPF topologies. The research results show that the most reasonable
combination of different filter topologies can be obtained by this method for different situation
needed to mitigate harmonic and compensate reactive power. © 2012 IEEE.
Main heading: Topology
Controlled terms: Design - Motion control - Power electronics
Uncontrolled terms: Design index - Different frequency - Filter topology - Filtering
effects - Harmonic mitigation - Passive power filters - Practical experience Research results - Selection methods - Selection problems - Systematic design
methods
Classification code: 408 Structural Design - 715.2 Industrial Electronic Equipment 731.3 Specific Variables Control - 921.4 Combinatorial Mathematics, Includes Graph Theory,
Set Theory
DOI: 10.1109/IPEMC.2012.6259317
Database: Compendex
151.
Title: The multi-objective optimization design of passive power filter based on PSO
Authors: Ji, Junpeng1 ; Liu, Haiwa1 ; Zeng, Guang1 ; Zhang, Jinggang1
XUT, Xi'an, China
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: The Passive Power Filter (PPF) is widely used in power system because of its high
performance-price ratio. Firstly, the design of PPF is to meet the requirements of filtering effect.
Meanwhile it is restricted by the power factor, economic indicators and other conditions.
Traditional design method, which is usually based on one economic and technical indexes or
engineering experience, is too dependent on experience and unable to reach the optimum design.
This paper present a design method of PPF based on Particle Swarm Optimization (PSO)
algorithm, the initial investment cost of PPF, reactive power compensation capacity and the
filtering effect are taken as three optimization goals. This method is validated by a simulation
power system experiments. The experimental results show that the optimization design method of
PPF is correct and effective. And the optimized PPF has good comprehensive performance. ©
2012 IEEE.
Main heading: Particle swarm optimization (PSO)
Controlled terms: Design - Economics - Electric power factor - Investments Multiobjective optimization
Uncontrolled terms: Comprehensive performance - Design method - Economic
indicators - Filtering effects - Investment costs - Multi objective optimizations (MOO)
- Optimization design - Optimization goals - Optimum designs - Particle swarm
optimization algorithm - Passive power filters - Power factors - Reactive power
compensation
Classification code: 408 Structural Design - 706 Electric Transmission and Distribution 911.2 Industrial Economics - 921.5 Optimization Techniques
DOI: 10.1109/APPEEC.2012.6307477
Database: Compendex
152.
Title: Netted structure of grain boundary phases and its influence on electrical conductivity of
Cu- Ni-Si system alloys
Authors: Jia, L.1 ; Xie, H.1, 2 ; Lu, Z.L.1 ; Wang, X.1 ; Wang, S.M.1
2 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese
Academy of Sciences, Lanzhou 730000, China
Corresponding author: Xie, H. ([email protected])
Source title: Materials Science and Technology
Abbreviated source title: Mater. Sci. Technol.
Volume: 28
Issue: 2
Issue date: 2012
Pages: 243-248
Language: English
ISSN: 02670836
E-ISSN: 17432847
CODEN: MSCTEP
Publisher: Maney Publishing, Suite 1C, Joseph's Well, Hanover Walk, Leeds, LS3 1AB, United
Kingdom
Abstract: Cu-Ni-Si alloys with four different Cu contents were fabricated by means of smelting.
Subsequently, isothermal aging and hot rolling followed by aging treatment were carried out. The
microstructure and phase composition were characterised by optical microscope, transmission
electron microscope and X-ray diffractometer. Electrical conductivity was measured by using an
eddy current based technique. The results show that the electrical conductivities of as cast
Cu-Ni-Si alloys decrease obviously with a decline in Cu content. Isothermal aging is favourable to
enhance the electrical conductivities of Cu-Ni-Si alloys with higher than 90%Cu content rather
than that with ,90%Cu content containing an integrated netted structure of grain boundary phases.
The electrical conductivities of as rolled Cu-Ni-Si alloys can obviously be increased by
subsequent aging treatment. The above results suggest that the disintegration of the integrated
netted structure at the grain boundary is a promise to achieve high electrical conductivity for
Cu-Ni-Si alloys. © 2012 Institute of Materials, Minerals and Mining.
Main heading: Copper alloys
Controlled terms: Cerium alloys - Electric conductivity - Grain boundaries - Hot
rolling - Light transmission - Silicon - Silicon alloys - Transmission electron
microscopy
Uncontrolled terms: Aging treatment - As-cast - Cu content - Cu-Ni-Si alloy Electrical conductivity - Grain boundary phasis - High electrical conductivity Isothermal aging - Netted structure - Ni-Si system - Optical microscopes Transmission electron microscope - X ray diffractometers
Classification code: 741.3 Optical Devices and Systems - 741.1 Light/Optics - 701.1
Electricity: Basic Concepts and Phenomena - 933.1 Crystalline Solids - 549.3 Nonferrous
Metals and Alloys excluding Alkali and Alkaline Earth Metals - 544.2 Copper Alloys 535.1.2 Rolling Mill Practice - 547.2 Rare Earth Metals
DOI: 10.1179/1743284711Y.0000000054
Database: Compendex
153.
Title: Abnormal improvement on electrical conductivity of Cu-Ni-Si alloys resulting from
semi-solid isothermal treatment
Authors: Jia, Lei1 ; Lin, Xin2 ; Xie, Hui1, 2 ; Lu, Zhen-Lin1 ; Wang, Xiao1
Author affiliation: 1 School of Materials Science and Engineering, Xi'An University of
2 State Key Laboratory of Solidification Processing, Northwestern Polytechnical University,
Xi'an 710072, China
Corresponding author: Xie, H. ([email protected])
Source title: Materials Letters
Abbreviated source title: Mater Lett
Volume: 77
Pages: 107-109
Language: English
ISSN: 0167577X
CODEN: MLETDJ
Abstract: The effect of semi-solid isothermal treatments on electrical conductivities of Cu-Ni-Si
alloys with the addition of 10 wt.%Ni + Si was studied in conjunction with different solid-state
solution treatments. The microstructure and phase composition of as-treated samples were
investigated. The results showed that after semi-solid isothermal treatments at 1000°C, both the
complete decomposition of δ-Ni2Si phases in Cu-rich solutions and the remelting of eutectic
phases at the grain boundaries had occurred. As a result, an abnormal improvement on the
electrical conductivities of Cu-Ni-Si alloys could be obtained due to lower scatter effect of Ni and
Si atoms on electron movement, resulting from more Ni and Si atoms in Cu-rich solutions entered
into the eutectic melts at the grain boundaries by solid-state diffusion. © 2012 Elsevier B.V. All
rights reserved.
Main heading: Silicon alloys
Controlled terms: Electric conductivity of solids - Electric properties - Eutectics Grain boundaries - Isotherms - Microstructure - Silicon
Uncontrolled terms: Cu-Ni-Si alloy - Electrical conductivity - Electron movement Eutectic melt - Eutectic phasis - Isothermal treatment - Semi-solid treatment Semi-solids - Si atoms - Solid-state diffusion
- Solid-state solution
Classification code: 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth
Metals - 701.1 Electricity: Basic Concepts and Phenomena - 801.4 Physical Chemistry 933 Solid State Physics - 933.1 Crystalline Solids - 951 Materials Science
DOI: 10.1016/j.matlet.2012.03.010
Database: Compendex
154.
Title: Extract dynamic specific property information of hydraulic turbine based on characteristic
entropy of dual-tree complex wavelet
Authors: Jia, Rong1 ; Zhang, Xinwei1 ; Lu, Yao1
Author affiliation: 1 Institute of Water Resources and Hydro-Electric Engineering, Xi'an
Corresponding author: Jia, R. ([email protected])
Volume: 31
Issue: 5
Pages: 292-296
Language: Chinese
ISSN: 10031243
Abstract: This paper adopts a technique of dual-tree wavelet transformation as information
extracting tool to study the dynamic behaviors of turbine draft tube. This technique has advantages
of approximate shift invariance, complete reconstruction and better energy focus. As information
entropy reflects abnormal characteristics of short-term system signal, combination of wavelet
coefficients and information entropy provides a device for recognition of fault pattern with
characteristic entropy used as recognition feature vector. This new method was applied to the
monitored signal of pressure fluctuation in a draft tube. Results show that it is effective in
extracting fault information. Thus, it opens up a new direction for fault diagnosis of hydraulic
machinery. © right.
Main heading: Hydraulic turbines
Controlled terms: Entropy - Face recognition - Hydraulic machinery - Pattern
recognition systems - Tubes (components) - Wavelet transforms
Uncontrolled terms: Characteristic extracting - Draft tubes - DT-CWT - Dual-tree Dual-tree complex wavelets - Dynamic behaviors - Energy focus - Fault patterns Information entropy - Information extracting
- Pressure fluctuation - Recognition
features - Shift invariance - System signals - Wavelet coefficients - Wavelet
transformations
Classification code: 616.1 Heat Exchange Equipment and Components - 617.1 Hydraulic
Turbines - 632.2 Hydraulic Equipment and Machinery - 641.1 Thermodynamics - 716
Telecommunication; Radar, Radio and Television - 921.3 Mathematical Transformations
Database: Compendex
155.
Title: The application of TU alignment technology in computer scoring of human translated texts
Authors: Jiang, Jinlin1 ; Wei, Wei2 ; Sun, Ya1
Author affiliation: 1 Research Centre for Business English and Cross-cultural Studies,
University of International Business and Economics, Beijing 100029, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
Corresponding author: Jiang, J. ([email protected])
Volume: 6
Issue: 13
Pages: 510-519
Language: English
ISSN: 19759339
E-ISSN: 22339310
Abstract: As a widely adopted quality predictor of machine translation, Ngram does not attach
due importance to context and it ignores the translating operation when evaluating human
translation. To match the human translating practice, this study makes Translation Unit (TU)
alignment based on a self-made multi-word dictionary when performing computer scoring of over
300 English-Chinese translated texts. It compares the correlations between the number of matched
Ngrams and human scorings of meaning, form, and overall quality of translation with those
between the number of aligned TUs and scorings. It further explores the predicting power of
matched Ngrams and aligned TUs with multiple regression analysis. Research indicates that the
number of aligned TUs has higher explanatory power for meaning scoring than overall Ngrams,
but lower explanatory power for form and overall scorings. In addition, models with the number
of word-based unigrams and aligned TUs as independent variables explain more scorings than
those with all Ngrams, and their calculated scores are more consistent with human scorings.
Therefore, integrating word-based unigram with TU alignment technology achieves the best
predicting effect of human translated texts.
Main heading: Alignment
Controlled terms: Regression analysis
Uncontrolled terms: Explanatory power - Independent variables - Machine translations
- Multi-word - Multiple regression analysis - N-grams - Overall quality Translation unit
Classification code: 601.1 Mechanical Devices - 922.2 Mathematical Statistics
Database: Compendex
156.
Title: Research and application of 3D Early Warning Monitoring Platform for flood prevention
Authors: Jiang, Ren-Gui1 ; Xie, Jian-Cang1 ; Li, Jian-Xun1
Corresponding author: Jiang, R.-G. ([email protected])
Volume: 43
Issue: 6
Pages: 749-755
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: For overcoming the shortages existed in the present flood information management
system such as difficulty in integrating multi-source information, and insufficient timeliness and
expression capacity, a 3D early warning monitoring platform (3D-EWMP) has been designed and
developed on the base of 3D geographic information system WorldWind. Four-layer system
structure consisting of data layer, server layer, application layer and client layer was proposed, the
application layer function module and basic component architecture were designed, basic
component data was effectively organized and managed using tile pyramid technology and quad
tree structure. The 3D visualization environment was set up, geospatial information of flood
control was integrated into the platform by Web Map Service (WMS), and multi-source
information integration of flood control was proposed. Application of the 3D-EWMP in flood
control and drought relief decision services platform of Shaanxi Province shows that the platform
designed has integration of mass data, good practicability, expansibility and 3D expression, which
could provide decision-making support for flood control.
Main heading: Three dimensional computer graphics
Controlled terms: Flood control - Geographic information systems - Information
management - Information retrieval - Three dimensional - Trees (mathematics) Visualization
Uncontrolled terms: 3D Visualization - 3D-EWMP - Application layers - Component
- Component architectures - Data layer - Decision making support - Early warning
- Flood prevention - Function module
- Geospatial information - Information
integration - Information management systems - Mass data - Monitoring platform Multisources - Quadtree structure - Research and application - Services platforms System structures - Web map services
Classification code: 454.1 Environmental Engineering, General - 723.3 Database Systems
- 723.5 Computer Applications - 902.1 Engineering Graphics - 903.2 Information
Dissemination - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory
Database: Compendex
157.
Title: Research and application on flood disaster comprehensive evaluation system based on
GRA
Authors: Jiang, Rengui1 ; Xie, Jiancang1 ; Wang, Chunyan2 ; He, Ting3
Author affiliation: 1 Faculty of Water Resources and Hydraulic Power, Xi'an University of
2 Xi'an Subsidiary, Beijing Petrochemical Engineering Co., Ltd., Xi'an, China
3 Geographische Wissenschaften, Free University of Berlin, Berlin, Germany
Corresponding author: Jiang, R. ([email protected])
Source title: Proceedings of 2011 International Conference on Computer Science and Network
Technology, ICCSNT 2011
Abbreviated source title: Proc. Int. Conf. Comput. Sci. Netw. Technol., ICCSNT
Volume: 3
Monograph title: Proceedings of 2011 International Conference on Computer Science and
Network Technology, ICCSNT 2011
Issue date: 2011
Pages: 2099-2102
Language: English
ISBN-13: 9781457715846
Conference name: 2011 International Conference on Computer Science and Network
Technology, ICCSNT 2011
United States
Abstract: Analytic hierarchy process(AHP) and entropy method were used to calculate
combination weight vectors for different evaluation indexes, relevancy of different flood disaster
sequences were acquired by means of computing relational coefficients of flood disaster
sequences and referenced sequence, flood disaster ranks of different flood disaster sequences were
obtained. Application on flood disaster evaluation of China during 1998~2009 showed that the
comprehensive evaluation system included more comprehensive and objective flood disaster
information, the results were correspond to the actual flood situation. The results indicated that
comprehensive evaluation system was conciseness and reliability, which had general applicability
in flood disaster evaluation and other areas. © 2011 IEEE.
Main heading: Entropy
Controlled terms: Analytic hierarchy process - Computer science - Hierarchical systems
Uncontrolled terms: Combination weights - Comprehensive evaluation system - Entropy
methods - Evaluation index - Flood disaster - Grey relation analysis - Research and
application
Classification code: 641.1 Thermodynamics - 721 Computer Circuits and Logic Elements -
722 Computer Systems and Equipment - 723 Computer Software, Data Handling and
Applications - 921 Mathematics - 961 Systems Science
DOI: 10.1109/ICCSNT.2011.6182384
Database: Compendex
158.
Title: The research on the informatization construction of human resource management
Authors: Jiang, Xiao-Rong1 ; Xue, Xiao-Xue1
Author affiliation: 1 School of Business and Administration Management, Xi'an University of
Corresponding author: Jiang, X.-R. ([email protected])
Volume: 2
Issue date: 2011
Pages: 251-254
Language: English
ISBN-13: 9780769545233
United States
Abstract: With the growing trend of globalization, diversification of labor and the fierce
competition among enterprises, as the core of enterprise management, the requirements for human
resource management is increasingly high. Therefore, with the rapid development of information
technology, the construction of enterprise human resource management information has become
atop priority of human resources management reform in new era. This paper is to analyze and
research the common problem during the construction of enterprise human resource management,
and propose strategies and advice to the modern enterprise human resource management
information technology. © 2011 IEEE.
Main heading: Information management
Controlled terms: Competition - Human resource management - Industrial engineering
- Industry - Information technology - Innovation
Uncontrolled terms: Common problems - Construction of enterprise - Enterprise human
resource - Enterprise management - Human resources management - Informatization
- Rapid development
Classification code: 903 Information Science - 903.2 Information Dissemination - 911.2
Industrial Economics - 912 Industrial Engineering and Management
DOI: 10.1109/ICIII.2011.208
Database: Compendex
159.
Title: Effect of current filament characteristics on the output current of high-gain
photoconductive semiconductor switch
Authors: Jiang, Zenggong1 ; Shi, Wei1, 2 ; Hou, Lei1 ; Gui, Huaimeng1 ; Ji, Weili1 ; Ma,
Cheng1 ; Zhang, Lin1
Author affiliation: 1 Applied Physics Department, Xian University of Technology, Xian
710048, China
2 State Key Laboratory of Electrical Insulation for Power Equipment, Xian Jiaotong University,
Xian 710049, China
Corresponding author: Jiang, Z.
Source title: Applied Physics Letters
Abbreviated source title: Appl Phys Lett
Volume: 101
Issue: 19
Issue date: November 5, 2012
Language: English
ISSN: 00036951
CODEN: APPLAB
Abstract: The output current characteristics of a high-gain photoconductive semiconductor
switch (PCSS) were analyzed under different bias voltages. The results indicate that the voltages
on different discharge regions of current filament are dynamic, which determines the output
current transient characteristics. The physical processes of anode region influenced by the bias
voltage of PCSS dominate that the output current presents the characteristic of lock-on or
overshoot. The quench of current filament is determined by the external circuit and the carrier
recombination process, resulting in the turn-off of high-gain PCSS. © 2012 American Institute of
Physics.
Main heading: Power quality
Controlled terms: Bias voltage - Photoconductive switches
Uncontrolled terms: Carrier recombination - Current filaments - External circuits High-gain - Lock-on - Output current - Photoconductive semiconductor switches Physical process
Classification code: 706.1.2 Electric Power Distribution - 713 Electronic Circuits - 714.2
Semiconductor Devices and Integrated Circuits
DOI: 10.1063/1.4761999
Database: Compendex
160.
Title: Research on unknown static parameter estimation problem of state space models based on
particle filter algorithm
Authors: Jiao, Shang-bin1 ; Qian, Fu-cai1 ; Yang, Jun1
Corresponding author: Jiao, S.-B. ([email protected])
Volume: 532-533
Monograph title: Materials Science and Information Technology II
Issue date: 2012
Pages: 1820-1824
Language: English
ISSN: 10226680
ISBN-13: 9783037854389
Conference name: 2012 2nd International Conference on Materials Science and Information
Technology, MSIT 2012
Conference location: Xi'an, Shaan, China
Abstract: A novel parameter estimation method for unknown static parameters of the state space
model using particle filtering (PF) has proposed in this paper. Traditional methods enlarge state
vector by treating the unknown parameter θ as a part of state vector (x k,θ). But this may cause the
degeneration of θ , when some estimates become too small to continue as a result of the
non-dynamic character of parameters if θ at time k is only determined by time k -1. Compared to
traditional methods, this novel method assumes that the posterior distribution of θ is given by
previous observation and state vectors, z 1:k and x 1:k. Obtain statistics at time k by using the
integration of z 1:k and x 1:k, and solve parameter estimation problem by updating θ recursively.
Good results are obtained when this method is used in different models. © (2012) Trans Tech
Main heading: Parameter estimation
Controlled terms: Information technology - Materials science - Monte Carlo methods Signal filtering and prediction - State space methods - Target tracking
Uncontrolled terms: Parameter estimation method - Parameters estimation - Particle filter
- Particle filter algorithms - Particle Filtering - Posterior distributions - Sequential
updating - State space model - State vector - State-space models - Static
parameters
Classification code: 716.2 Radar Systems and Equipment - 731.1 Control Systems - 903
Information Science - 922.2 Mathematical Statistics - 951 Materials Science
Database: Compendex
161.
Title: The effect of sintering temperature on mechanical and electrical properties of a W-10Ti
alloy prepared by hot press sintering
Authors: Jie, Xianzhuo1 ; Liang, Shuhua1 ; Wang, Qingxiang1 ; Zhao, Xin1 ; Fan, Zhikang1 ;
Wang, Xianhui1
Technology, No. 5 South Jinhua Road, Xi'an, Shaanxi 710048, China
Corresponding author: Jie, X. ([email protected])
Source title: Journal of Materials Engineering and Performance
Abbreviated source title: J Mater Eng Perform
Volume: 21
Issue: 1
Pages: 101-104
Language: English
ISSN: 10599495
CODEN: JMEPEG
Publisher: Springer New York, 233 Springer Street, New York, NY 10013-1578, United States
Abstract: W-10Ti alloy was prepared by hot press sintering using W-TiH2 powders milled for 24
h under argon atmosphere. The effect of sintering temperature on the phase constituents and the
microstructure of the alloys was characterized by x-ray diffraction (XRD), scanning electron
microscopy (SEM), and transmission electron microscopy (TEM). The microhardness of W-rich
phase, electrical resistivity and impurity (C, O) contents of W-10Ti alloy were determined. The
results show that the amount of W-Ti solid solution, the microhardness of the W-rich solid solution
and the resistance of W-10Ti alloy increase with an increase of sintering temperature. At 1300 °C,
W-10Ti alloy has the maximum microhardness value of 333 HV0.05, the O content of 360 ppm
and C content of 200 ppm. © 2011 ASM International.
Main heading: Titanium alloys
Controlled terms: Alloys - Atmospheric temperature - Electric conductivity Mechanical properties - Microhardness - Presses (machine tools) - Scanning electron
microscopy - Sintering - Solid solutions - Transmission electron microscopy Tungsten - X ray diffraction
Uncontrolled terms: Argon atmospheres - Electrical resistivity - Hot-press sintering impurity contents - Mechanical and electrical properties - Phase constituent - Sintering
temperatures
Classification code: 951 Materials Science - 933.1.1 Crystal Lattice - 933 Solid State
Physics - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 701.1 Electricity:
Basic Concepts and Phenomena - 603.1 Machine Tools, General - 543.5 Tungsten and
Alloys - 542.3 Titanium and Alloys - 536.1 Powder Metallurgy Operations - 531.1
Metallurgy - 443.1 Atmospheric Properties - 421 Strength of Building Materials;
Mechanical Properties
DOI: 10.1007/s11665-010-9828-5
Database: Compendex
162.
Title: Multispectral image fusion based on contrast modulation and weighted wavelets and
markov modeling
Authors: Jin, Haiyan1 ; Li, Shuai1 ; Wang, Bingbo1 ; Sun, Xueming1
Corresponding author: Jin, H. ([email protected])
Source title: Communications in Computer and Information Science
Abbreviated source title: Commun. Comput. Info. Sci.
Volume: 288 CCIS
Issue: PART 1
Monograph title: Communications and Information Processing - International Conference,
ICCIP 2012, Revised Selected Papers
Issue date: 2012
Pages: 193-200
Language: English
ISSN: 18650929
ISBN-13: 9783642319648
Conference name: 2012 International Conference on Communications and Information
Processing, ICCIP 2012
Conference location: Aveiro, Portugal
Abstract: This paper presents an improved multisensor image fusion scheme, which is based on
the typical geometrical structure of images. Consider the textures, directional and spectral features,
the paper modulate and enhance the contrast of the original images in different scales and reduce
the time cost at the same time using contrast pyramid; use weighted wavelets and wedgelets to
capture the geometrical characteristics of different scales. In wedgelets, employ Markov models to
find the best wedgelet orientations at different scales. Results clearly demonstrate the superiority
of this improved approach when compared to conventional wavelet-based systems. © 2012
Springer-Verlag Berlin Heidelberg.
Controlled terms: Data processing - Image texture - Markov processes
Uncontrolled terms: Different scale - Geometrical characteristics - Geometrical structure
- Markov model - Markov modeling - Multi-spectral image fusions - Multisensor
image fusion - Original images - Spectral feature - Time cost - Wedgelet Weighted wavelets
Classification code: 723.2 Data Processing and Image Processing - 922.1 Probability Theory
DOI: 10.1007/978-3-642-31965-5_23
Database: Compendex
163.
Title: Optimization of agricultural drainage system design with multiple objectives in a vertisol
soil district of China based on DRAINMOD simulations
Authors: Jing, Wei-Hua1, 3 ; Luo, Wan1 ; Jia, Zhong-Hua1 ; Wen, Ji2
2 Irrigation Research Institute, Ministry of Water Resources, Xinxiang 453003, China
3 Tsinghua University, Beijing 100084, China
Corresponding author: Luo, W. ([email protected])
Volume: 43
Issue: 7
Pages: 842-851
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: Owing to the unevenly distributed rainfall, water logging and drought hazards happen
concurrently almost every year in the poorly drained vertisol soil district in the Huaibei Plain of
China. The existing drainage system was designed for single objective of water logging control,
which neglected equal needs of drought prevention and water quality protection. With the aid of
the field hydrology model-DRAINMOD, this paper presents a simulation study of drainage
system design considering multiple objectives including maximizing crop yields, minimizing
subsurface drainage, and land saving etc. The results show that the optimized subsurface drainage
system layout for the study area is placing the drain pipes at depths no deeper than 1.2m and
spacing between 18 to 30m. The analysis also shows that replacing the existing open drainage
ditches at field level may save land area of more than 10% in the study area.
Main heading: Drainage
Controlled terms: Agriculture - Drought - Groundwater flow - Natural water
geochemistry - Optimization - Soils - Systems analysis
Uncontrolled terms: Agricultural drainage - Crop yield - Drainage systems DRAINMOD - Multiple objectives
Classification code: 921.5 Optimization Techniques - 821 Agricultural Equipment and
Methods; Vegetation and Pest Control - 502 Mines and Quarry Equipment and Operations 483.1 Soils and Soil Mechanics - 961 Systems Science - 444.2 Groundwater - 442
Flood Control; Land Reclamation - 406 Highway Engineering - 401 Bridges and Tunnels
- 444 Water Resources
Database: Compendex
164.
Title: An oriented clonal selection algorithm for associative classification
Authors: Kang, Wan-Li1 ; Wu, Jing-Jing1 ; Cui, Duwu2 ; Zhao, Li2
Author affiliation: 1 Hebei Vocational College for Correctional Police, HanDan, China
2 Xi'An University of Technology, Xi'an, China
Corresponding author: Kang, W.-L. ([email protected])
Volume: 170-173
Issue date: 2012
Pages: 3320-3323
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: In this paper, we present an oriented clonal selection algorithm (O-CLONALG) for
mining association rules effectively for classification. Different with the traditional evolutionary
algorithms, O-CLONALG firstly scans dataset one time to find the frequent rules with one item.
The items are used to generate new rules and the mutation operation is limited in it. When
mutation operation takes place, each rule in the same generation was added a new item. The
results have shown that it is efficient in dealing with the problem on the complexity of the rule
search space. At the same time, good classification accuracy has been achieved. © (2012) Trans
Main heading: Evolutionary algorithms
Controlled terms: Building materials - Civil engineering
Uncontrolled terms: Artificial Immune System - Associative classification Classification accuracy - Clonal selection algorithms - Data sets - Mining associations
- Mutation operations - Rule search
Classification code: 723 Computer Software, Data Handling and Applications - 415 Metals,
Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 921 Mathematics
- 413 Insulating Materials - 411 Bituminous Materials - 409 Civil Engineering, General
- 412 Concrete
Database: Compendex
165.
Title: Analysis on the influence of the re-circulation mechanism's position on the friction torque
fluctuation in ball screw
Authors: Kang, Xianmin1 ; Fu, Weiping2 ; Wang, Dacheng1 ; Wang, Jiansheng1
Author affiliation: 1 WuYi University, Jiangmen, Guangdong, 529020, China
2 Xi'an University of Technology, Xian, Shanxi, 710000, China
Corresponding author: Kang, X. ([email protected])
Volume: 472-475
Monograph title: Advanced Manufacturing Technology
Issue date: 2012
Pages: 2663-2669
Language: English
ISSN: 10226680
ISBN-13: 9783037853702
ICMSE 2012
Abstract: When a re-circulating mechanism is in different position, the force exerted on a ball
that is into and out of the re-circulating mechanism is different, on which a model of friction
torque fluctuation at different position is set up. The friction torque fluctuation varying with the
different rotation rate of a ball screw is discussed. The analysis shows that a critical rate exists at
different position and a critical preload is likely to occur. The tendency of a friction torque
fluctuation is same while the critical rate is different. In the end, the result is verified by
experiment. © (2012) Trans Tech Publications.
Main heading: Manufacture
Controlled terms: Ball screws - Friction - Screws - Tribology
Uncontrolled terms: Critical rates - Friction torque - Friction torque fluctuations - Pre
loads - Recirculations - Rotation rate
Classification code: 537.1 Heat Treatment Processes - 605 Small Tools and Hardware 732.1 Control Equipment - 931 Classical Physics; Quantum Theory; Relativity - 931.1
Mechanics
Database: Compendex
166.
Title: Research on multi-aperture reception in wireless laser communication
Authors: Ke, Xizheng1 ; Song, Peng1 ; Pei, Guoqiang1
Technology, Shaanxi, Xi'an 710048, China
Corresponding author: Ke, X. ([email protected])
Source title: Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title: Guangxue Xuebao
Volume: 31
Issue: 12
Language: Chinese
ISSN: 02532239
CODEN: GUXUDC
Publisher: Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China
Abstract: In atmospheric laser communications, light intensity flashing caused by turbulence
severely interferes the performance of communication system and increases the bit error rate
(BER) of the system. Multi-aperture reception is the effective method to overcome the above
interference. The reception areas of multi apertures and the effect of aperture position relation on
space smoothing factor are analyzed. The reception performance of three apertures, is mainly
analyzed and smoothing factor of multi-aperture reception is compared with that of single-aperture
reception. The probability density function of light intensity fluctuation deriving from the
Gamma-Gamma channel modeling from weak turbulence band to strong turbulence band is
deployed to analyze the BER of multi-aperture reception system. The result shows that
multi-aperture reception system can better improve the light intensity fluctuation of reception area
and decrease system's BER. With the increase of the number of aperture, the aperture smoothing
factor and BER will be decreased.
Main heading: Bit error rate
Controlled terms: Atmospheric thermodynamics - Atmospheric turbulence Communication systems - Laser optics - Light - Light polarization - Optical
communication - Optical links - Probability density function
Uncontrolled terms: Aperture smoothing - Atmospheric laser - Bit error rate (BER) Channel modeling - Light intensity - Light-intensity fluctuation - Multi aperture Reception systems - Smoothing factors - Space smoothing
- Strong turbulence Weak turbulence - Wireless laser communication
Classification code: 443.1 Atmospheric Properties - 716 Telecommunication; Radar, Radio
and Television - 717.1 Optical Communication Systems - 723.1 Computer Programming
- 741.1 Light/Optics - 921 Mathematics
DOI: 10.3788/AOS201131.1201003
Database: Compendex
167.
Title: Free space optical communication based on space-time trellis coding
Authors: Ke, Xizheng1 ; Xie, Mengqi1 ; Gao, Haitao1 ; Li, Tie2
2 Key Laboratory of Electro-Mechanical Dynamic Control, Xi'an Institute of
Electro-Mechanical Information Technology, Xi'an 710065, China
Corresponding author: Ke, X. ([email protected])
Volume: 41
Issue: 4
Pages: 1022-1027
Language: Chinese
ISSN: 10072276
Abstract: A space-time trellis codes based on free space optical communications (FSO) was
presented. The 4-PPM space-time trellis encoder with two transmitting antennas was designed,
and then the basic design principle and the coding algorithm were introduced. The multiple-input
and multiple-output (MIMO) channel capacity was analyzed theoretically in the atmospheric
optical channel. Finally, based on the Monte Carlo algorithm, optical channel capacity and bit
error rate were simulated. The simulation results shows that space-time trellis codes based on FSO
can reduce the atmospheric scintillation turbulence effects on bit error rate of atmospheric. When
the number of transmit antennas is fixed, the bit error rate will decrease with the increasing
number of receiving antenna; when the number of transmit antennas is not fixed, as the number of
tranmit antennas increases, the channel capacity will increase.
Main heading: Channel capacity
Controlled terms: Algorithms - Bit error rate - MIMO systems - Optical
communication - Pulse position modulation - Receiving antennas
Uncontrolled terms: Atmospheric scintillation - Coding algorithms - Design Principles
- Free Space Optical communication - FSO - Monte carlo algorithms - Multiple input
and multiple outputs - Optical channels - Space time trellis coding - Space-time trellis
- Space-time trellis codes - STTC - Transmit antenna - Transmitting antenna Turbulence effect
Classification code: 961 Systems Science - 921 Mathematics - 723.1 Computer
Programming - 723 Computer Software, Data Handling and Applications - 717.1 Optical
Communication Systems - 716.1 Information Theory and Signal Processing - 716
Telecommunication; Radar, Radio and Television
Database: Compendex
168.
Title: Space design tactics for green office building
Authors: Kong, Liming1 ; Huang, Lei1 ; Luo, Zhixing1
Author affiliation: 1 College of Architecture, Xi'an University of Technology and Architecture,
No. 13, Yanta Road, Xi'an City, Shaanxi Province, China
Corresponding author: Kong, L. ([email protected])
Volume: 174-177
Monograph title: Advanced Building Materials and Sustainable Architecture
Issue date: 2012
Pages: 1820-1823
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854235
Abstract: Initiated from the volume and space designing before constructing office building, the
paper is in purpose of adopt reasonable passive energy saving design so as to make people to have
the sense of space comfort and pleasure, decrease the costs for construction and operation, and
finally construct more efficient green office building. More details about design tactics and
outcome were expressed by a case. © (2012) Trans Tech Publications.
Controlled terms: Building materials - Civil engineering - Energy conservation -
Office buildings
Uncontrolled terms: Green office buildings - Office space - Passive energy - Space
design
Classification code: 525.2 Energy Conservation - 415 Metals, Plastics, Wood and Other
Structural Materials - 414 Masonry Materials - 413 Insulating Materials - 412 Concrete
- 411 Bituminous Materials - 409 Civil Engineering, General - 408 Structural Design 402.2 Public Buildings
Database: Compendex
169.
Title: Preparation and photoinduced hydrophilic properties of (TiO2-ZnO)/TiO2 gradient thin
films by magnetron sputtering
Authors: Kou, Gang1 ; Bai, Li-Jing1 ; Gong, Zhen-Yao1 ; Zhao, Zhi-Ming1
Author affiliation: 1 College of Material Science and Engineering, Xi'an University of
Corresponding author: Bai, L.-J. ([email protected])
Volume: 41
Issue: 1
Pages: 94-99
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: (TiO2-ZnO)/TiO2 gradient composite thin films were prepared by ion plating
magnetron sputtering technique. The structure, morphology and surface hydroxy group of
composite thin films were investigated by TEM, AFM, Raman and XPS. The differences of
photocatalytic activity and hydrophilic property were analyzed between (TiO2-ZnO)/TiO2
gradient composite thin films and ordinary TiO2-ZnO, TiO2 thin films. The results show that the
(TiO2-ZnO)/TiO2 composite gradient films were constituent of TiO2-ZnO composite key body
and TiO2 top layer, the surface morphology of (TiO2-ZnO)/TiO2 film was compact and uniform,
and the grain size was about 10-14 nm. The photocatalysis and hydrophilic properties of
(TiO2-ZnO)/TiO2 gradient composite films were better than ordinary TiO2-ZnO composite thin
films and TiO2 thin films, and its light response region was extended to the visible region(450 nm).
The XPS indicates that the surface hydroxy group of (TiO2-ZnO)/TiO2 gradient composite thin
films were 12.53%. At the same time, The gradient composite thin films show excellent resistance
to anti-photo corrosion and well stability of contact angle.
Main heading: Titanium dioxide
Controlled terms: Contact angle - Film preparation - Hydrophilicity - Ion
implantation - Magnetron sputtering - Nanocomposite films - Photocatalysis - Thin
films - X ray photoelectron spectroscopy - Zinc oxide
Uncontrolled terms: AFM - Composite gradients - Composite thin films - Gradient
- Gradient composites - Grain size - Hydrophilic properties - Hydroxy groups Ion plating - Light response - Photo-induced - Photocatalytic activities - TiO Visible region - ZnO
Classification code: 931.2 Physical Properties of Gases, Liquids and Solids - 804.2 Inorganic
Compounds - 801 Chemistry - 741.1 Light/Optics - 715.1 Electronic Equipment,
non-communication - 714.2 Semiconductor Devices and Integrated Circuits - 712.1
Semiconducting Materials
Database: Compendex
170.
Title: Numerical simulation of meso-damage process of concrete under dynamic load and CT
experiment verification
Authors: Lei, Guangyu1 ; Dang, Faning1 ; Pan, Feng1
Xi'an 710048, China
Corresponding author: Lei, G. ([email protected])
Volume: 174-177
Monograph title: Advanced Building Materials and Sustainable Architecture
Issue date: 2012
Pages: 299-303
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854235
Abstract: In mesoscopic level, concrete was taken as three-phase composites consisting of
aggregate, bond and mortar. Use the Monte Carlo methods, establish random aggregate model of
concrete and apply the concrete damage plasticity model. Judge the failure based on the
load-displacement curve and then doing the numerical simulation to the specimen on the impact
loads. Through CT test, get the CT images of various force stages of the concrete. Compare the
damage process picture of the numerical simulation with CT test. Find the failure process of the
numerical simulation is similar to the CT test. The results show that the model is right to simulate
the damage and fracture of concrete which is under the dynamic load. It is established that the
model of the method is feasible. © (2012) Trans Tech Publications.
Main heading: Aggregates
Controlled terms: Building materials - Civil engineering - Computer simulation Computerized tomography - Dynamic loads - Monte Carlo methods
Uncontrolled terms: Aggregate model - CT experiment - CT Image - Damage process
- Damage-plasticity models - Failure process - Impact loads - Load-displacement
curve - Meso-damage - Mesoscopic levels - Random aggregate model Three-phase composites
Classification code: 723.5 Computer Applications - 415 Metals, Plastics, Wood and Other
Structural Materials - 414 Masonry Materials - 413 Insulating Materials - 922.2
Mathematical Statistics - 412 Concrete - 409 Civil Engineering, General - 408.1
Structural Design, General - 406 Highway Engineering - 411 Bituminous Materials
Database: Compendex
171.
Title: The low coupling compliant straight -line mechanisms structure and parameter analysis
Authors: Lei, He1, 2 ; Ji, Xiaomin1 ; Huang, Pengtao2
Author affiliation: 1 School of Mechanical Instrumental Engineering, Xi'An University of
2 School of Mechanical Engineering, Shandong University of Technology, Zibo city, China
Corresponding author: Lei, H. ([email protected])
Source title: Proceedings - 2012 International Conference on Computer Science and Information
Processing, CSIP 2012
Abbreviated source title: Proc. - Int. Conf. Comput. Sci. Inf. Process., CSIP
Monograph title: Proceedings - 2012 International Conference on Computer Science and
Information Processing, CSIP 2012
Issue date: 2012
Pages: 833-836
Language: English
ISBN-13: 9781467314114
Conference name: 2012 International Conference on Computer Science and Information
Processing, CSIP 2012
Conference location: Xi'an, Shaanxi, China
Sponsor: Xi'an Technological University; IEEE Xi'an Section; Missouri Western State
University; Natl. New Netw. Monit. Control Eng. Lab.
United States
Abstract: Aiming at the characteristics of large coupling error and complex structure of the
single direction translation micro-displacement mechanism,some compliant mechanisms' theoretic
anysis and Finite element tests are discussed. The symmetric four bars structure which has the
advantages of simple structure, good linearity and high sensitivity is determined as the basic forms
of low coupling compliant straight -line mechanisms. Based on the relationship between the
incision contour and the output displacement, the vertical incision contour is determined as the
ideal hinge type, and effecting on output displacement of coupling compliant straight -line
mechanisms by parameters is studied by method of finite element. © 2012 IEEE.
Main heading: Finite element method
Controlled terms: Computer science - Data processing - Mechanisms
Uncontrolled terms: Complex structure - Coupling errors - Finite Element - Four bar
- High sensitivity - Low coupling - Method of finite elements - Microdisplacement
- Nonlinear coefficient - Parameter analysis
- Simple structures
Classification code: 601.3 Mechanisms - 721 Computer Circuits and Logic Elements 722 Computer Systems and Equipment - 723 Computer Software, Data Handling and
Applications - 723.2 Data Processing and Image Processing - 921.6 Numerical Methods
DOI: 10.1109/CSIP.2012.6308982
Database: Compendex
172.
Title: Wind farm tie-line protection setting based on adaptive current-voltage protection
principles
Authors: Lei, Xian-Guo1 ; Duan, Jian-Dong1
Xi'an, China
Corresponding author: Lei, X.-G. ([email protected])
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: Wind farm tie-lines need to complete the relay protection, but existing tie-lines, or not
set protect at wind farm side, or the protection may be affected by wind farm characteristic and
misoperation. This paper first analyzes the DFIG short circuit current characteristics; draw DFIG
short circuit current be closely connected with fault time, fault modes, the Crowbar circuit whether
action, voltage dips degree, etc. So setting the tie-line protection based on adaptive current-voltage
protection principles. Finally, paper establishes the simulation model that base on Northern
Shaanxi Lang'ergou wind farm to test the protection, the simulation software is DIgSILENT. Test
results show that the protection configuration scheme is feasible; it can distinguish the internal
fault or external fault and with excellent properties. © 2012 IEEE.
Main heading: Wind power
Controlled terms: Computer simulation - Electric utilities - Software testing
Uncontrolled terms: Crow-bar circuit - Current characteristic - Current voltage DFIG - External fault - Fault modes - Fault time - Internal faults - Misoperation
- Protection configurations - Protection principle - Protection settings - Simulation
model - Simulation software - Tie-line - Voltage dip - Wind farm
Classification code: 615.8 Wind Power (Before 1993, use code 611 ) - 706 Electric
Transmission and Distribution - 723.5 Computer Applications
DOI: 10.1109/APPEEC.2012.6307124
Database: Compendex
173.
Title: Detection for rective current based on the instantaneous reactive power theory
Authors: Lei, Xiao-Cui1 ; Zeng, Guang1 ; Zhang, Jing-Gang1
Author affiliation: 1 Xi'an University of Technology, Department of Electrical Engineering,
Xi'an, China
Corresponding author: Lei, X.-C. ([email protected])
Volume: 433-440
Issue date: 2012
Pages: 6565-6571
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Abstract: Three-phase circuit instantaneous reactive power theory has received a successful
application in detecting harmonic and reactive current timely, the ip-iq and d-q method of first
proposed require the phase-locked loop and low-pass filter. The paper make corresponding
improvement on the basis of the method based on amplitude integration which only can detect
fundamental current, propose a method which can detect the active and reactive current, and the
method based on amplitude integration can detect fundamental current of single-phase circuit
directly, and simulation. The simulation results show that the method can detect the harmonic and
reactive current accurately and timely, and is suitable for various circumstances that three-phase
power supply distortion and asymmetry and so on, and when only detecting the harmonic current,
it does not require the phase-locked loop and low-pass filter, while detecting the harmonic and
reactive current, increases the phase-locked loop; when the method based on amplitude integration
is directly used to detect single-phase fundamental current, the phase-locked loop and low-pass
filter are not required. The paper deduces the theory of the method and researches on simulation
analysis. © (2012) Trans Tech Publications, Switzerland.
Controlled terms: Error detection - Harmonic analysis - Information technology Integration - Low pass filters - Materials science - Phase locked loops - Reactive
power - Signal filtering and prediction
Uncontrolled terms: D-q transformation - Fundamental current - Harmonic currents Improved - Instantaneous reactive power theory - Power supply - Reactive currents Simulation analysis - Single phase circuit - Three phase circuits
Classification code: 951 Materials Science - 921.6 Numerical Methods - 921.2 Calculus
- 903 Information Science - 731.1 Control Systems - 721.1 Computer Theory, Includes
Formal Logic, Automata Theory, Switching Theory, Programming Theory - 713.5 Electronic
Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers 706 Electric Transmission and Distribution - 703.2 Electric Filters
Database: Compendex
174.
Title: Performance analysis of quantitative attributes inverse classification problem
Authors: Li, Aiguo1 ; Zhou, Xin2 ; Zhang, Jiulong2
Author affiliation: 1 School of Computer Science and Technology, Xi'an University of Science
and Technology, Xi'an, China
2 Computer Science and Engineering, Xi'an University of Technology, Xi'an, China
Corresponding author: Li, A. ([email protected])
Source title: Journal of Computers
Abbreviated source title: J. Comput.
Volume: 7
Issue: 5
Issue date: 2012
Pages: 1067-1072
Language: English
ISSN: 1796203X
Abstract: Most inverse classification algorithms address discrete attributes and can not deal with
quantitative attributes. In order to overcome the disadvantage, the discretization algorithms are
applied to the inverse classification algorithms, and the main idea is: firstly, a group of feature
attributes are selected by using feature selection algorithm; then, the quantitative attributes are
discretized by using discretization algorithms, and the inverted statistics are constructed on the
training samples; finally, the test samples are analyzed in order to classify and estimate the
missing values. Experimental results on IRIS and Ecoli datasets show that this method could find
the class label effectively and estimate the missing values accurately. The performance of the
equal-width histogram method is better in the inverse classification problem of quantitative
attributes. © 2012 ACADEMY PUBLISHER.
Main heading: Inverse problems
Controlled terms: Algorithms
Uncontrolled terms: Class labels - Classification algorithm - Data sets - Discrete
attributes - Discretization algorithms - Feature selection algorithm - Histogram method
- Missing values - Performance analysis - Quantitative attributes
- Test samples Training sample
Classification code: 921 Mathematics
DOI: 10.4304/jcp.7.5.1067-1072
Database: Compendex
175.
Title: Study of the synthesis and field emission characteristics of one-dimensional GaN
nanostructures
Authors: Li, Enling1 ; Zhao, Tao1 ; Zhao, Danna1 ; Cui, Zhen1 ; Liu, Mancang1
Author affiliation: 1 Science School, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Li, E. ([email protected])
Source title: Surface Review and Letters
Abbreviated source title: Surf. Rev. Lett.
Volume: 19
Issue: 2
Language: English
ISSN: 0218625X
CODEN: SRLEFH
Publisher: World Scientific Publishing Co. Pte. Ltd, 5 Toh Tuck Link, Singapore, 596224,
Singapore
Abstract: The chemical vapor deposition (CVD) process has been used to synthesize gallium
nitride (GaN) nanostructures using Pt-coated n-type Si(100) as the substrate, and NH3 gas and
Ga2O3 powder as the reaction agents. The surface morphologies of the prepared GaN
nanostructures obtained by field emission scanning electron microscopy (FE-SEM) show a large
number of GaN nanowires and nanorods on the Si substrates. The synthesized nanostructures are
hexagonal as determined from XRD analysis and show a turn-on field of 5 v/μm at 10 μA/cm2. ©
2012 World Scientific Publishing Company.
Main heading: Nanorods
Controlled terms: Chemical vapor deposition - Field emission - Field emission
microscopes - Gallium alloys - Gallium nitride - Nanowires - Platinum - Silicon
- Substrates - Synthesis (chemical) - Vapors
Uncontrolled terms: Field emission scanning electron microscopy - Field-emission
characteristics - GaN nanostructures - GaN nanowires - Reaction agents - Si
substrates - Si(1 0 0) - Turn-on field - XRD analysis
Classification code: 933 Solid State Physics - 932 High Energy Physics; Nuclear Physics;
Plasma Physics - 804.2 Inorganic Compounds - 804 Chemical Products Generally 802.2 Chemical Reactions - 801 Chemistry - 761 Nanotechnology - 741.3 Optical
Devices and Systems - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline
Earth Metals - 547.1 Precious Metals - 461 Bioengineering and Biology
DOI: 10.1142/S0218625X12500114
Database: Compendex
176.
Title: Study of electronic structures and transport properties on saturated GaN nanowires
Authors: Li, Enling1 ; Zhu, Pengfei1 ; Zhao, Tao1 ; Ma, Deming1 ; Wang, Xuewen2
Author affiliation: 1 Sciences School, Xi'an University of Technology, Xi'an, 710048, China
2 Electronic Information Science and Technology, Northwest University, Xi'an, 710068, China
Volume: 465
Monograph title: Advanced in Nanoscience and Technology
Issue date: 2012
Pages: 118-124
Language: English
ISSN: 10226680
ISBN-13: 9783037853672
Conference name: 10th China International Nanoscience and Technology Symposium and the
Nano-Products Exposition
Sponsor: Chinese Society of Micro-NanoTechnology; IEEE Nanotechnology Council
Abstract: Geometry structure, electronic structure and electronic transport properties of saturated
hexagonal single crystalline GaN nanowires in the [001] growth direction have been investigated
based on generalized gradient approximation (GGA) of density functional theory (DFT) and
non-equilibrium green's function (NEGF) method. The results show, there is a contraction of the
bond lengths of the saturated GaN nanowires after optimization; the nanowires have direct band
gap, and band gap decreases with the increase of the cross section of nanowires; the electronic
density of state and electronic transmission spectra of two-probe system have their own pulse-type
sharp peaks with almost the same location of electron energy; the curves of I-V characteristics of
the three saturated GaN nanowires are symmetric over the entire bias-voltage range, and they are
semiconducting. © (2012) Trans Tech Publications, Switzerland.
Main heading: Nanowires
Controlled terms: Electronic density of states - Electronic structure - Energy gap Gallium nitride - Geometry - Nanoscience - Transport properties
Uncontrolled terms: Cross section - Direct band gap - Electron energies - Electronic
transmissions - Electronic transport - Electronic transport properties - GaN nanowires
- Generalized gradient approximations - Geometry structure - Growth directions IV characteristics - Non-equilibrium Green's function - Single-crystalline
Classification code: 933.1.1 Crystal Lattice - 933 Solid State Physics - 931 Classical
Physics; Quantum Theory; Relativity - 921 Mathematics - 804.2 Inorganic Compounds 761 Nanotechnology - 423 Non Mechanical Properties and Tests of Building Materials 422 Strength of Building Materials; Test Equipment and Methods - 421 Strength of Building
Materials; Mechanical Properties
Database: Compendex
177.
Title: Electronic structures and transport properties of single crystalline gan nanotubes
Authors: Li, Enling1 ; Hou, Liping1 ; Cui, Zhen1 ; Zhao, Danna1 ; Liu, Mancang1 ; Wang,
Xuewen2
Author affiliation: 1 Sciences School, Xi'An University of Technology, Xi'an 710048, China
2 Electronic Information Science and Technology, Northwest University, Xi'an 710068, China
Source title: Nano
Abbreviated source title: Nano
Volume: 7
Issue: 3
Language: English
ISSN: 17932920
Singapore
Abstract: The electronic structures and transport properties of single crystalline GaN nanotubes
with 0.92 nm inner diameter and different wall thicknesses of 0.08 nm, 0.26 nm and 0.54 nm are
studied based on the generalized gradient approximation (GGA) of density functional theory (DFT)
and the nonequilibrium green's function (NEGF). The research shows that (1) the three single
crystalline GaN nanotubes have direct band gaps, decreasing with the increase of wall thickness;
(2) the electronic density of state and electronic transmission spectra of two-probe system have
their own pulse-type sharp peaks with almost the same location of electron energy; (3) under
different bias-voltages, two-probe systems of the single crystalline GaN nanotubes have the I-V
properties which reveal that the single-wall GaN nanotube and the single-layer GaN nanotube are
semiconducting and the double-layer GaN nanotube appears nearly metallic. © 2012 World
Scientific Publishing Company.
Main heading: Nanotubes
Controlled terms: Crystalline materials - Density functional theory - Electronic density of
states - Electronic structure - Gallium nitride - Transport properties
Uncontrolled terms: Density functional theories (DFT) - Direct band gap - Double layers
- Electron energies - Electronic transmissions - Electronic transport - GaN nanotubes
- Generalized gradient approximations - Inner diameters - Non-equilibrium Green's
function - Single layer - Single-crystalline - Single-wall - Wall thickness
Classification code: 761 Nanotechnology - 804.2 Inorganic Compounds - 931 Classical
Physics; Quantum Theory; Relativity - 933.1 Crystalline Solids
DOI: 10.1142/S1793292012500142
Database: Compendex
178.
Title: Pyrolyzed carbon-supported Co-N4 electrocatalysts using hexamethylene-tetramine as
nitrogen source
Authors: Li, Feng1, 2 ; Pattrick, Gary2 ; Moutloali, Richard2 ; Van Der Lingen, Elma2
Author affiliation: 1 School of Material Science and Engineering, Xi'an University of
2 Advanced Materials Division, MINTEK, Randburg 2194, Johannesburg, South Africa
Corresponding author: Li, F. ([email protected])
Source title: Rare Metals
Abbreviated source title: Rare Met
Volume: 30
Issue: SUPPL.1
Pages: 68-70
Language: English
ISSN: 10010521
E-ISSN: 18677185
CODEN: RARME8
Publisher: University of Science and Technology Beijing, 30 Xueyuan Lu, Beijing, 100083,
China
Abstract: Hexamethylenetetramine was used as nitrogen resource to prepare platinum-free Fe-N
and Co-N electrocatalyst for oxygen reduction reaction (ORR). X-ray diffraction measurement
shows that trace Co ions are reduced to Co metal. Cyclic voltammogram experiment shows that
the ORR peak potential appears at 200 mV (vs. SCE) in oxygen-saturated acidic media. The
Koutecky-Levich analysis indicates that the ORR follows the first-order kinetic reaction and the
ORR proceeds mainly via the four-electron reduction. © The Nonferrous Metals Society of China
and Springer-Verlag Berlin Heidelberg 2011.
Main heading: Electrocatalysts
Controlled terms: Electrolytic reduction - Fuel cells - Oxygen - Platinum Pyrolysis - Trace elements - X ray diffraction
Uncontrolled terms: Acidic media - Co ions - Cyclic voltammograms - First-order
kinetic reaction - Four-electron reduction - Hexamethylenetetramine - Nitrogen sources
- Oxygen reduction reaction - Peak potentials - X-ray diffraction measurements
Classification code: 547.1 Precious Metals - 702.2 Fuel Cells - 802.2 Chemical
Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products
Generally - 931.3 Atomic and Molecular Physics
DOI: 10.1007/s12598-011-0240-6
Database: Compendex
179.
Title: Application of structural loess binary-medium model to localization shear band
Authors: Li, Hong-Ru1 ; Hu, Zai-Qiang1 ; Feng, Fei1 ; Liu, Yin1
Xi'an 710048, China
Corresponding author: Li, H.-R. ([email protected])
Volume: 33
Issue: 9
Pages: 2803-2810
Language: Chinese
ISSN: 10007598
Abstract: Based on the theory of breakage mechanics, the structural loess is conceptualized as
binary-medium model consisting of bonding brick and frictional band. Shear band is structural
loess' breakage, localization band sprout and development is dynamic process that bonding brick
is translating into frictional band. Applying the double parameter breakage ratio binary-medium
model of structural loess, the process of structural loess localization band sprouting and expanding
is simulated with the numerical simulations method, the localization shear band shape, speciality
and law under different disfigurement project are studied; it is found that the strain localization on
a shear band of structural soil at originally is some sets discontinuous little local breakage area
step by step developed, connected and formed the shape of whole destruction with the external
load increased. Combining binary-medium model with general finite elements, visual reappeared
the course of the local shear band germination and progress.
Controlled terms: Brick - Friction - Geologic models - Shear bands
Uncontrolled terms: Breakage mechanics - Double parameter breakage ratio - Dynamic
process - External loads - Finite Element - Finite element simulations Localization bands - Strain localizations - Structural loess
Classification code: 414.2 Brick Materials - 481.1 Geology - 723.5 Computer
Applications - 931.1 Mechanics
Database: Compendex
180.
Title: Application of structural loess binary-medium mode in localization shear band
Authors: Li, Hong-Ru1 ; Feng, Fei1 ; Wang, Qing1
Volume: 204-208
Monograph title: Progress in Industrial and Civil Engineering
Issue date: 2012
Pages: 825-832
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854846
Conference name: 2012 International Conference on Civil, Architectural and Hydraulic
Engineering, ICCAHE 2012
Conference location: Zhangjiajie, China
Abstract: Based on the theory of breakage mechanics,the structural loess are conceptualized as
binary -medium model consisting of bonding brick and frictional band. Shear band is structural
loess' breakage, localization band sprout and development is dynamic process that bonding brick
is translating into frictional band.Application of double parameter breakage ratio binary-medium
mode of structural loess,simulated the process of structural loess localization band sprouting and
expanding with the numerical simulations method,studied localization shear band shape, speciality
and law under different disfigurement project,found that the strain localization on a shear band of
structural soil at originally is some sets discontinuous little local breakage area step by step
developed, connected and formed the shape of whole destruct with the external load
increased,appeared dilatation softening phenomena under the especial disfigurement. Combining
binary-medium mode with general finite element,solved the question of localization shear band
softening,visual reappeared the course of the local shear band germination and progress. © (2012)
Main heading: Shear bands
Controlled terms: Brick - Civil engineering - Fluid mechanics - Friction - Shore
protection
Uncontrolled terms: Binary-medium mode - Breakage mechanics - Double parameter
breakage ratio - Dynamic process - External loads - Finite Element - Finite element
simulations - Localization bands - Softening phenomenon - Strain localizations
Structural loess
Classification code: 407.1 Maritime Structures - 409 Civil Engineering, General - 414.2
Brick Materials - 931.1 Mechanics
Database: Compendex
181.
Title: Structural soil binary-medium constitutive model and factor of breakage ratio influence
Authors: Li, Hong-Ru1 ; Hu, Zai-Qiang1 ; Zhao, Kai1 ; Zhang, Long1
Xi'an 710048, China
Volume: 33
Issue: SUPPL. 1
Pages: 67-72
Language: Chinese
ISSN: 10007598
Abstract: Geological materials are inhomogeneous natural materials having micro cracks and
micro voids. Under the theoretical framework of breakage mechanics for geological material, the
geomaterials are conceptualized as binary medium consisting of bonded blocks and bonded bands,
evolvement equation of breakage ratio are reflectrd the fracture process degree of the
transformation of fracturing or breaking of bonded blocks into bonded bands in the process of
loading, which are analysed deformation and breakage development speciality, showed the change
course of bonded blocks into bonded bands under loading. Finally, aimed at the loess in Yanglin
region, through triaxial shear test, the influences of confining pressure and water content on the
breakage rate evolution are studied. The results show that the breakage ratio of simple parameter
binary-medium mode has no relation of the confining pressure and water content, it is the function
of maximum principal strain from the test.
Main heading: Loading
Controlled terms: Curricula - Geologic models - Rock pressure
Uncontrolled terms: Binary medium - Breakage mechanics - Breakage process Confining pressures - Fracture process - Geological materials - Geomaterials Maximum principal strain - Micro voids - Natural materials - Theoretical framework
- Triaxial shear tests
Classification code: 481.1 Geology - 502.1 Mine and Quarry Operations - 672 Naval
Vessels - 901.2 Education
Database: Compendex
182.
Title: Multi-fractal feature recognition for shaft centerline orbit of hydropower units based on
fuzzy clustering
Authors: Li, Hui1 ; Bai, Liang1 ; Luo, Xingqi1 ; Jia, Rong1 ; Tian, Lulin1
Author affiliation: 1 Institute of Water Resources and Hydropower Engineering, Xi'an
Corresponding author: Li, H. ([email protected])
Volume: 31
Issue: 4
Pages: 238-242+262
Language: Chinese
ISSN: 10031243
Abstract: In this paper, multi-fractal spectrum is used to represent the graphics features of axis
orbits of hydropower unit and to achieve feature extraction from common orbit shapes of unit axis.
Fuzzy c-means clustering method is used to identify the multi-fractal characteristics of clustering
variety of fault value of orbits. Results show that this method produces better classification
identification of the multi-axis samples and meets the needs of intelligent diagnosis of hydropower
generating units.
Main heading: Orbits
Controlled terms: Failure analysis - Feature extraction - Fractals - Fuzzy systems Hydroelectric power
Uncontrolled terms: Centerlines - Classification identification - Feature recognition Fuzzy C means clustering - Fuzzy c-means clustering method - Generating unit Hydropower unit - Intelligent diagnosis - Multi fractals - Multi-Axis
Multi-fractal spectrum - Orbit shapes
Classification code: 611.1 Hydroelectric Power Plants - 655.2 Satellites - 716
Telecommunication; Radar, Radio and Television - 921 Mathematics - 961 Systems
Science
Database: Compendex
183.
Title: Monitoring and estimating non-point source pollution on typical sections along the Weihe
River
Authors: Li, Jia-Ke1 ; Li, Huai-En1 ; Shen, Bing1 ; Qin, Yao-Min1 ; Dong, Wen1
Author affiliation: 1 Key Laboratory of Northwest Water Resource and Environment Ecology
of Ministry of Education, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Li, J.-K. ([email protected])
Source title: Shuikexue Jinzhan/Advances in Water Science
Abbreviated source title: Shuikexue Jinzhan
Volume: 22
Issue: 6
Pages: 818-828
Language: Chinese
ISSN: 10016791
CODEN: SHUJE6
Abstract: The water quality of the Weiher River is heavily affected by non-point source
pollution(NSP). It is therefore necessary to quantify NSP loading. We monitored both water flow
and water quality at two cross-sections along the Guanzhong river reach near the cities of
Xianyang and Lintong for two flooding and non-flooding seasons of 2009 and 2010. The
measured parameters include chemical oxygen demand(COD), dissolved orthophosphate, total
phosphorus(TP), TP, NH3-N, NO2-N, NO3-N and total nitrogen(TN). NSP loadings are calculated
using the modified hydrological division method and the mean concentration method. The latter is
proven to be a well-established and widely-used method. The results show that COD, NH3-N and
TN constitute the majority of pollutants in the Guanzhong reach. Their mean concentrations are
lower but more variable during flooding seasons compared to that of non-flooding seasons. The
concentration is inversely proportional to the scale of the floods in the reach. The NSP simulations
using the two methods agree well each other, indicating the applicability of the hydrological
division method when data is scarce. The two simulations reveal that NSP accounts for about 20%
to 30% of the total pollutant loading at the two cross-sections in 2009(a dry year with P=68%).
Thus, point source pollution(pollutants discharged from the cities of Xianyang and Lintong) is the
main contributor to the water pollution problem in the Guanzhong river reach, as it contributes
more than 80% of the total loading. However, compared to 2006 other dry year with P=69%, the
point source loadings of COD, NH3-N and TN are actually reduced by 11937 t, 791 t, and 29 t in
2009. This shows the effectiveness in controlling point source of pollution in the Weiher River. In
addition, the overall composition of pollution remains almost unchanged in 2006 and 2009, and
NSP gives a substantial contribution to water pollution, which cannot be ignored.
Controlled terms: Chemical oxygen demand - Dissolved oxygen - Loading Monitoring - Phosphorus - Pollution control - Rivers - Water quality
Uncontrolled terms: Flooding season - Lintong - Mean concentrations - Measured
parameters - Non-point source pollution - Point source pollution - Point sources Pollutant loadings - Pollution problems - Proportion
- Total nitrogen - Total
phosphorus - Water flows - Xianyang
Classification code: 944 Moisture, Pressure and Temperature, and Radiation Measuring
Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric
and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments 804 Chemical Products Generally - 672 Naval Vessels - 454.2 Environmental Impact and
Protection - 453.2 Water Pollution Control - 453 Water Pollution - 445.2 Water
Analysis - 445 Water Treatment - 444.1 Surface Water - 444 Water Resources
DOI: CNKI:32.1309.P.20110911.1132.005
Database: Compendex
184.
Title: Estimation of non-point source pollution characteristics and loading in Xi'an urban areas
Authors: Li, Jiake1 ; Li, Huai-En1 ; Dong, Wen1 ; Li, Yajiao2 ; Shen, Bing1 ; Qin, Gaowei1
Author affiliation: 1 Key Lab of Northwest Water Resource and Environment Ecology of
MOE, Xi'an University of Technology, Xi'an 710048, China
2 School of Architecture and Civil Engineering, Xi'an University of Science and Technology,
Xi'an 710054, China
Corresponding author: Li, J. ([email protected])
Volume: 31
Issue: 4
Pages: 131-138
Language: Chinese
ISSN: 10031243
Abstract: River water quality is heavily impacted by urban non-point source pollution (NSP) and
study of characteristics and loading of urban NSP is crucial to water quality control. We monitored
the water quality at different runoff plots in the main urban areas of Xi'an city in 2010 and 2011,
and calculated the NSP loadings of the same areas for 2010 (normal year). The results indicate that
NSP concentrations were the highest in the initial 20 minutes of each surface runoff process and
they were decreasing as rainfall continued. The variations of NSP concentration are the smallest in
traffic zones and the greatest in residential zones. In traffic zones, mean concentrations of
suspended solid (SS), chemical oxygen demand (COD) and heavy metal were the highest, while in
business zones, mean concentrations of ammonia nitrogen (NH3-N), total nitrogen (TN) and total
phosphorus (TP) were the highest. Second, the estimations by concentration method and method
of monitored rainfall proportion in total rainfall, agree well with each other, indicating that these
methods are reliable and applicable to urban NSP loading. In estimating this loading, we found
two good methods that verify each other, one summing up each functional zone' loadings
calculated using mean concentration and surface runoff, the other using a comprehensive mean
concentration and total surface runoff of the city for direct calculation. Third, calculations of the
main urban areas in 2010 show that the NSP loadings of SS, COD, NH3-N, TN, TP, Cu, Zn, Pb,
Cd and Cr were 12958.5 tons, 3444.2 tons, 141.9 tons, 231.4 tons, 7.5 tons, 0.94 tons, 4.3 tons, 2.2
tons, 1.1 tons and 1.4 tons, respectively. Pollutant export coefficients of traffic zones were the
highest, and the ones of green lands the lowest.
Controlled terms: Chemical oxygen demand - Estimation - Lead - Loading Pollution - Rain - Runoff - Water quality
Uncontrolled terms: Characteristics - Monitor - Non-point source pollution - Water
environments - Xi'an city
Classification code: 672 Naval Vessels - 546.1 Lead and Alloys - 454.2 Environmental
Impact and Protection - 921 Mathematics - 453.2 Water Pollution Control - 444.1
Surface Water - 443.3 Precipitation - 453 Water Pollution
Database: Compendex
185.
Title: Evaluation of AnnAGNPS and its applications in a semi-arid and semi-humid watershed in
Northwest China
Authors: Li, Jiake1 ; Li, Huaien1 ; Li, Yajiao2
Author affiliation: 1 Key Lab of Northwest Water Resource and Environment Ecology of
MOE, Xi'an University of Technology, 5 South Jinghua Road, Xi'an, Shaanxi 710048, China
2 School of Architecture and Civil Engineering, Xi'an University of Science and Technology, 58
Yanta road, Xi'an, Shaanxi 710054, China
Source title: International Journal of Environment and Pollution
Abbreviated source title: Int. J. Environ. Pollut.
Volume: 49
Issue: 1-2
Pages: 62-88
Language: English
ISSN: 09574352
E-ISSN: 17415101
CODEN: IJVLEN
Publisher: Inderscience Enterprises Ltd., Editorial Office, P O Box 735, Olney, Bucks., MK46
5WB, MK46 5WB, United Kingdom
Abstract: The main goal of this study was to evaluate the performance of AnnAGNPS
(Annualised Agricultural Non-Point Source Pollution Model) in simulating runoff, sediment
loading and nutrient loading in a semi-arid and semi-humid watershed of an area of 1481sq km,
located in Northwest China. This model was fi rst calibrated and tested by historic monitoring data
and then the validated model was used to simulate the effects of non-point source (NPS) pollution
management measures. The results indicate that reforestation measures, which reduce the amount
of runoff, sediment, total nitrogen and total phosphorus, should be adopted in the study watershed
to control NPS pollution. The model was also used to assess the effects of other measures on NPS
pollution. This study concludes that AnnAGNPS has the potential to be a valuable tool for the
planning and management of watersheds in the semi-arid regions of China. Copyright © 2012
Inderscience Enterprises Ltd.
Main heading: Water pollution
Controlled terms: Agricultural runoff - Arid regions - Computer simulation Landforms - Loading - Pollution control - Reforestation - Sedimentology Watersheds
Uncontrolled terms: China - Effect simulation - Environmental pollutions Management measures - Non-point source pollution - NorthWest China - NPS
pollution - Nutrient loading - Sediment loading - Semi arid - Semi-arid region Total nitrogen - Total phosphorus
Classification code: 672 Naval Vessels - 481.1 Geology - 454.2 Environmental Impact
and Protection - 453.1 Water Pollution Sources - 723.5 Computer Applications - 453
Water Pollution - 444 Water Resources - 443 Meteorology - 442.2 Land Reclamation
- 444.1 Surface Water
DOI: 10.1504/IJEP.2012.049769
Database: Compendex
186.
Title: Experimental research on impermeable characteristics of slurry cake in cutoff wall hole of
coarse-grained soil
Authors: Li, Jian-Jun1 ; Shao, Sheng-Jun1 ; Yang, Fu-Yin1 ; Yang, Chun-Ming1
Author affiliation: 1 Shaanxi Key Laboratory of Loess Mechanics and Engineering, Institute
of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Shao, S.-J. ([email protected])
Volume: 33
Issue: 4
Pages: 1087-1093
Language: Chinese
ISSN: 10007598
Abstract: In order to explore the seepage stability of slurry cake formed in the cutoff wall hole of
coarse-grained soil, the impermeable characteristics of slurry cake are tested by the self-made
slurry seepage apparatus. After the slurry cake wall is formed by the slurry seepage through sand
samples with some particles gradation under some pressure difference, the seepage experiments of
water passing through the frontal face of slurry cake or through the reversal face of slurry cake are
carried out under some pressure difference. Through the analysis of test results, the following
knowledge are obtained. The cutoff effect of slurry cake bearing with large gradient is significant.
There are different seepage characteristics of slurry cakes formed under different pressure
differences. The greater the pressure difference when the slurry cake are formed, the more
compact the slurry cake is, the stronger the ability is to resist infiltration and damage, the smaller
the permeability of the slurry cake is. The impermeability of water passing through reversal face
of slurry cake under some pressure difference is smaller than through frontal face of slurry cake
under same pressure difference. With the sustaining time of hydraulic action increasing, the
structure of slurry cake will change and its seepage velocity also increases. Under the large
hydraulic gradient action the slurry cake damage may occur under certain osmotic pressure
difference. The critical hydraulic gradient is closely associated with the loading pressure
difference of slurry cake formation. The larger the pressure difference is, the larger the critical
hydraulic gradient is. On the contrary, the smaller the critical hydraulic gradient is. The
above-mentioned knowledge has theoretical and practical importance that the design method and
construction technology of cutoff wall in large depth covering layer is improved by investigating
the impermeable characteristics of slurry cake.
Main heading: Seepage
Controlled terms: Experiments - Loading
Uncontrolled terms: Cake formation - Coarse-grained soils - Construction technologies
- Covering layer - Critical hydraulic gradient - Cutoff wall - Design method Experimental research - Frontal faces - Hydraulic gradients
- Large depth overburden
layer - Loading pressures - Osmotic pressure differences - Practical importance Pressure differences - Seepage stability - Seepage velocity - The impermeable
characteristics
Dams and Reservoirs; Hydro Development - 672 Naval Vessels - 901.3 Engineering
Research
Database: Compendex
187.
Title: Hydrological forecasting preferred and combination methods based-on dichotomous group
decision
Authors: Li, Jianxun1 ; Shen, Bing1 ; Xie, Jiancang1 ; Jiang, Rengui1
Volume: 31
Issue: 4
Pages: 60-64+88
Language: Chinese
ISSN: 10031243
Abstract: A hydrological forecasting preferred method is put forward based on dichotomous
group decision to solve the combination problems of multiple hydrological forecasting. In this
method, a preferred problem can be transformed into one of dichotomous group decision by using
a model for calculations of decision group, decision section, ability vector, and forecasting income.
In this work, parameter calibration and preferred solution were determined by decision quality,
and the forecasting accuracy and influences of model parameters were analyzed. Results show that
from two forecasted alternatives, the method can effectively pick the one closer to the
measurement at a success rate higher than 76%, and thus it produces higher forecasting accuracy.
Main heading: Forecasting
Controlled terms: Energy resources - Mechanical engineering
Uncontrolled terms: Combination method - Decision quality - Forecasting accuracy Group decision - Hydrological forecasting - Model parameters - Parameter calibration
- Preferred solutions
Classification code: 525.1 Energy Resources and Renewable Energy Issues - 608
Mechanical Engineering, General - 921 Mathematics
Database: Compendex
188.
Title: Research progress of pollutants transportation and diffusion modeling based on the
random walk theory
Authors: Li, Juan1 ; Feng, Minquan1 ; Dong, Lili1 ; Fan, Shiping1 ; Zhu, Jianwen2
Ecology, Education Ministry, Xi'an University of Technology, Xi'an, 710000, China
2 Lanzhou Jiao Tong University, Lanzhou, 730070, China
Source title: 2012 International Symposium on Geomatics for Integrated Water Resources
Abbreviated source title: Int. Symp. Geomatics Integr. Water Resour. Manage., GIWRM
Monograph title: 2012 International Symposium on Geomatics for Integrated Water Resources
Issue date: 2012
Language: English
ISBN-13: 9781467312820
Conference name: 2012 International Symposium on Geomatics for Integrated Water Resources
Sponsor: Lanzhou Jiaotong University (LJU); IEEE Geoscience and Remote Sensing Society
(GRSS); International Cartographic Association (ICA); International Association of Hydrological
Sciences (IAHS)
United States
Abstract: This paper summarizes the necessity of research on simulation of the
migration-diffusion of the contaminant based on random walk theory. Then it introduces the
theory and application domain of random walk theory and compares three various kinds of
random walk modes, analyzing the research statuses of the simulation of contaminant
migration-diffusion based on random walk theory. The paper presents the problems in research
process and conceivable development tendencies, and provides theory supporting to post-study. ©
2012 IEEE.
Main heading: Random processes
Controlled terms: Diffusion - Impurities - Research - Surveying - Water resources
Uncontrolled terms: Development tendency - Diffusion modeling - migration-diffusion
- Random-walk theory - randomwalk - Research process - Research progress simulation
Classification code: 405.3 Surveying - 444 Water Resources - 901.3 Engineering
Research - 922.1 Probability Theory - 931.1 Mechanics - 951 Materials Science
DOI: 10.1109/GIWRM.2012.6349608
Database: Compendex
189.
Title: Test analysis of relationship between natural frequency and compaction degree for
roadbed soil
Authors: Li, Jun1, 3 ; Zhou, Zhili2 ; Li, Yan1
2 Vehicle and Motive Power Engineering School, Henan University of Science and Technology,
3 Department of Mechanical Engineering, Luoyang Institute of Science and Technology,
Engineering
Volume: 28
Issue: 14
Pages: 71-76
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: The relationship between the natural frequency of roadbed soil and the soil compaction
degree is the foundation for accurately establishing the relationship between the vibration signal of
vibration roller and the compaction degree of soil and is the basis for effectively adjusting work
parameters of vibratory roller to improve the compaction efficiency based on the real-time
compaction condition of roadbed by online detecting vibration signal. Taken specific roadbed soil
as study subjects, cylinder soil samples were made by homemade spiral compacting mechanism in
this paper. Based on the modal analysis method and using INV306DF portable intelligent signal
acquisition and processing analysis system, the natural frequency tests were done for different
cylinder soil samples with different compaction degree. The function relation expression was
obtained between natural frequency and compaction degree of roadbed soil. This study provides a
reference for improving the intellectualized control system of vibratory roller.
Main heading: Compaction
Controlled terms: Cylinders (shapes) - Modal analysis - Natural frequencies - Rollers
(machine components) - Signal processing - Soil mechanics - Soil surveys - Soils
Uncontrolled terms: Analysis method - Analysis system - Compaction degree Compaction efficiency - Natural frequency test - Online detecting - Relation
expression - Signal acquisitions - Soil compaction - Soil sample - Test analysis Vibration signal - Vibrations - Vibratory rollers
Classification code: 921 Mathematics - 716.1 Information Theory and Signal Processing -
711.1 Electromagnetic Waves in Different Media - 601.2 Machine Components - 536.1
Powder Metallurgy Operations - 483.1 Soils and Soil Mechanics - 408.2 Structural
Members and Shapes
DOI: 10.3969/j.issn.1002-6819.2012.14.012
Database: Compendex
190.
Title: Visualization method of trajectory data based on GML, KML
Authors: Li, Junhuai1 ; Wang, Jinqin1 ; Yu, Lei1 ; Qi, Rui1 ; Zhang, Jing1
Volume: 169 AISC
Issue: VOL. 2
Monograph title: Advances in Computer Science and Information Engineering
Issue date: 2012
Pages: 479-484
Language: English
ISSN: 18675662
ISBN-13: 9783642302220
Conference name: Computer Science and Information Engineering, CSIE 2012
Sponsor: International Science and Education Researcher Association; VIP Information
Conference Center; Beijing Gireda Research Center
Abstract: With the advantages of GML and KML, we propose a new method of visualization of
trajectory data. To achieve the integration and sharing of geographic data of different sources and
different formats, XSLT and XPath technologies are utilized firstly to convert the original
trajectory data to GML format for storage and transmission. And then GML is converted to KML
to achieve the rapid visualization of trajectory data in browser. Finally, using KML files, the
trajectory data can be visualized rapidly in Google Maps and Google Earth. © 2012
Springer-Verlag GmbH.
Main heading: Data visualization
Controlled terms: Computer science - Trajectories - Visualization
Uncontrolled terms: Geographic data - GML - Google maps - KML - Trajectory
data - Visualization method
Classification code: 404.1 Military Engineering - 721 Computer Circuits and Logic
Elements - 722 Computer Systems and Equipment - 723 Computer Software, Data
Handling and Applications - 902.1 Engineering Graphics
DOI: 10.1007/978-3-642-30223-7_75
Database: Compendex
191.
Title: Design and implement of vehicle monitoring system using 3G technology
Authors: Li, Ling1 ; Wang, Ting2
Author affiliation: 1 Dept. of Mechanical Engineering, Xi'an Aerotechnical College, Xi'an,
China
2 Profession of Signal and Information Processing, Xi'an University of Technology, Xi'an, China
Corresponding author: Li, L.
Source title: Proceedings of the 2012 International Conference on Industrial Control and
Abbreviated source title: Proc. Int. Conf. Ind. Control Electron. Eng., ICICEE
Monograph title: Proceedings of the 2012 International Conference on Industrial Control and
Issue date: 2012
Pages: 832-835
Language: English
ISBN-13: 9780769547923
Conference name: 2012 International Conference on Industrial Control and Electronics
Engineering, ICICEE 2012
Sponsor: Xi'an Technological University; Missouri Western State University; IEEE Kansas City
Section
United States
Abstract: In order to promote vehicles working with speed and safety, a vehicle monitoring
system using 3G and GPS technology is designed. Intelligent Transportation System (ITS) aims to
realize the informatization, intellectualization and socialization of transportation system, and can
solve the transportation problems in city effectively. As a key point of ITS-Vehicle monitoring
system is paid more attention by more countries recently. A practical vehicle monitoring system is
developed and deployed in certain district of Xi'an, which demonstrates our system can combine
the function of vehicle monitoring, scheduling and anti-robbing together with low cost and high
efficiency. © 2012 IEEE.
Main heading: Transportation
Controlled terms: Electronics engineering - Intelligent systems
Uncontrolled terms: 3G technology - GPS location - GPS technologies Informatization - Intelligent transportation - Intelligent transportation systems Keypoints - Low costs - Monitoring system - Transportation problem Transportation system - Vehicle monitoring - Vehicle Monitoring System
Classification code: 723.4 Artificial Intelligence - 718 Telephone Systems and Related
Technologies; Line Communications - 717 Optical Communication - 716
Telecommunication; Radar, Radio and Television - 715 Electronic Equipment, General
Purpose and Industrial - 714 Electronic Components and Tubes - 713 Electronic Circuits
- 434 Waterway Transportation - 433 Railroad Transportation - 432 Highway
Transportation - 431 Air Transportation
DOI: 10.1109/ICICEE.2012.221
Database: Compendex
192.
Title: Molecular dynamics study on buckling of single-wall carbon nanotube-based
intramolecular junctions and influence factors
Authors: Li, Ming1 ; Kang, Zhan1 ; Yang, Peiying2 ; Meng, Xianhong3 ; Lu, Yanjun4
Author affiliation: 1 State Key Laboratory of Structural Analysis for Industrial Equipment,
Dalian University of Technology, Dalian 116024, China
2 Institute of System Engineering, Northeastern University, Shenyang 110004, China
3 School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
4 School of Mechanical and Instrumental Engineering, Xi'An University of Technology, Xi'an,
710048 Shaanxi, China
Corresponding author: Kang, Z. ([email protected])
Source title: Computational Materials Science
Abbreviated source title: Comput Mater Sci
Volume: 67
Pages: 390-396
Language: English
ISSN: 09270256
CODEN: CMMSEM
Abstract: Carbon nanotube-based intramolecular junctions can function as rectifying diodes and
switches in circuits and thus possesses the promising potential to be applied in nano-scale
electronic devices. Due to their slender and unsymmetrical geometry, intramolecular junctions are
prone to buckling under compression and the resulting structural instability will eventually leads
to structural or electrical failure. Thus, it is important to explore the mechanical behaviors of
intramolecular junctions subject to compressive loads. In this study, molecular dynamical
simulations are carried out to investigate the compressive behaviors of intramolecular junctions at
finite temperature, while carbon nanotubes are also studied as reference. The simulation results
indicate that the strain rate effect is negligible within relatively low loading-rate range but the
critical strain increases significantly under higher loading rate. At an extremely high strain rate,
the intramolecular junctions will crush immediately. It is also predicted that local deformation will
be introduced at high environmental temperature. Moreover, with increasing tube length, the
instability mode of the intramolecular junctions transfers from shell buckling to column buckling
and the critical aspect ratio is lower than that of carbon nanotubes due to presence of the
Stone-Wales defects. © 2011 Elsevier B.V. All rights reserved.
Main heading: Buckling
Controlled terms: Aspect ratio - Carbon nanotubes - Molecular dynamics - Point
defects - Semiconductor junctions - Strain rate - Temperature
Uncontrolled terms: Column buckling - Compressive behavior - Compressive loads Critical aspect ratio - Critical strains - Dynamical simulation - Electrical failures Electronic device - Environmental temperature - Finite temperatures - High strain
rates - Instability modes - Intramolecular junctions - Length - Loading rate Local deformations - Mechanical behavior - Nano scale - Shell buckling Single-wall
- Stone-Wales defects - Strain rate effect - Structural instability - Tube
length - Unsymmetrical geometry
Classification code: 943 Mechanical and Miscellaneous Measuring Instruments - 933.1.1
Crystal Lattice - 931 Classical Physics; Quantum Theory; Relativity - 801.4 Physical
Chemistry - 761 Nanotechnology - 714.2 Semiconductor Devices and Integrated Circuits
- 641.1 Thermodynamics - 422 Strength of Building Materials; Test Equipment and Methods
- 421 Strength of Building Materials; Mechanical Properties
DOI: 10.1016/j.commatsci.2012.09.034
Database: Compendex
193.
Title: Further researches on finite element method in tunnels with shallow overburden and
loosen rock mass
Authors: Li, Ning1 ; Qu, Xing1 ; Yao, Xian-Chun1 ; Liu, Nai-Fei1
Xi'an 710048, China
Corresponding author: Li, N. ([email protected])
Volume: 34
Issue: 8
Pages: 1475-1482
Language: Chinese
ISSN: 10004548
CODEN: YGXUEB
Abstract: Further researches on discretization finite element simulation of collapsing arch based
on loose surrounding rock in shallow-buried tunnels are performed. First of all, they are compared
with other numerical simulation methods and the definition and the applicable scope are put
forward. Compared with the results of the common finite element methods, it is further proved
that the proposed method is reasonable and can more realistically reflect the tensile state of the
surrounding rock in the near-surface, the intersecting site of slip surface with surface, the arch
crown, the arch and the sidewall bottom, the yield damage of loose rock and the collapse trend of
rock mass tunnel, so as to reveal the tensile breaking, fracturing and sloughing of rock. By
regarding whether or not the displacement of the arch crown is convergent as the judgement basis,
the influences of discrete interface parameters and block sizes on the results are preliminarily
discussed, showing that the discrete DFEM is feasible in technical and project application.
Main heading: Arches
Controlled terms: Finite element method - Rock mechanics - Rocks
Uncontrolled terms: Discretizations - Influence factor - Shallow-buried tunnel Stability of surrounding rock - Surrounding rock
Classification code: 408.2 Structural Members and Shapes - 481.1 Geology - 502.1 Mine
and Quarry Operations - 921.6 Numerical Methods
Database: Compendex
194.
Title: Several points in dynamic stability analysis of rock slope
Authors: Li, Ning1, 2 ; Yao, Xianchun1 ; Zhang, Chengke1
2 State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and
Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
Engineering
Volume: 31
Issue: 5
Pages: 873-881
Language: Chinese
ISSN: 10006915
CODEN: YLGXF5
Abstract: Emphasis is put on discussions of three basic problems in dynamic stability analysis of
rock slope: (1) mechanical characteristics of fractured rock masses under dynamic loads; (2)
dynamic response and safety assessment of slope; (3) safety evaluation of slope reinforcement
measures(mainly anchor cables) under dynamic loads. Based on long-term engineering
experiences and researches, assessment methods for dynamic stability of slopes are discussed,
especially for high rock slopes under seismic and blasting loads. The strength characteristics and
research emphasis for rock masses under dynamic loads are summarized and put forward. The
dynamic responses of rock slope are analyzed systematically. It is pointed out that the dynamic
stability of rock slopes should be assessed from three aspects, i.e. the trend of dynamic factor of
safety, the dynamic fracturing and sliding of potential sliding surface, and the particle vibration
velocity of key points in slopes. Finally, the security assessment of prestressed anchor cables
under dynamic loads is proposed.
Main heading: Anchor cables
Controlled terms: Anchorages (concrete construction) - Convergence of numerical methods
- Dynamic loads - Dynamic response - Rock mechanics - Rocks - Safety factor
- Slope protection
Uncontrolled terms: Assessment methods - Blasting load - Dynamic factors Dynamic stability analysis - Fractured rock mass - High rock slope - Keypoints Mechanical characteristics - Potential sliding surfaces - Prestressed anchor cable Rock mass - Rock slope - Safety assessments - Safety evaluations - Security
assessment - Slope engineering - Slope reinforcement - Stability of slopes Strength characteristics - Vibration velocity
Classification code: 921.6 Numerical Methods - 671.2 Ship Equipment - 502.1 Mine and
Quarry Operations - 483.1 Soils and Soil Mechanics - 481.1 Geology - 412 Concrete
- 408.1 Structural Design, General
Database: Compendex
195.
Title: Influence research of slope blasting excavation on adjacent existed tunnel
Authors: Li, Ning1, 2 ; Zhang, Chengke1 ; Zhou, Zhong3
2 State Key Laboratory of Frozen Soil Engineering, Cold and Arid Region Environmental and
Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
3 HydroChina Chengdu Engineering Corporation, Chengdu, Sichuan 610072, China
Engineering
Volume: 31
Issue: SUPPL. 2
Pages: 3471-3477
Language: Chinese
ISSN: 10006915
CODEN: YLGXF5
Abstract: The effect of slope blasting vibration on an adjacent existed tunnel and its control are
key problems of tunnel project. Since the new slope is close to existing tunnel, the seismic wave
induced by blasting endangers the safety and stability of the surrounding rock and the lining of
existing tunnel. For a different distance between slope and tunnel, a different rock mass damping
ratio, how much safety explosive quantity for single blasting in project is in urgent need of
solution. On the basis of the simulation with the dynamic finite element method (FEM), the effects
of slope blasting vibration on the surrounding rock and lining structure of adjacent existed tunnel
in different distances between slope and tunnel, damping ratio, safety explosive quantity for single
blasting are studied, combining with influence of slope blasting on tunnel analysis issue on
Jinping I hydropower station left bank project construction. According to the tunnel wall permitted
vibration velocity and lining dynamic tensile stress caused by slope blasting vibration wave,
obtain maximum explosive quantity of slope blasting constructions considering different damping
ratios under different distances between slope and tunnel and different rock types: grade III rock
mass, when distance between tunnel and slope equal to 20 and 50 m, the explosive quantity should
be controlled in 100 and 300 kg respectively; grade IV rock mass, when distance between tunnel
and slope equal to 20 and 50 m, the explosive quantity should be controlled in 150 and 450 kg
respectively, and the research results provide the reference and basis to construction and design of
the actual project.
Main heading: Explosives
Controlled terms: Blasting - Damping - Finite element method - Linings - Rock
mechanics - Rocks - Seismic waves - Slope stability - Tunnels
Uncontrolled terms: Blasting construction - Blasting excavation - Blasting vibration
wave - Blasting vibrations - Damping ratio - Dynamic finite element method Existing tunnel - Jinping I Hydropower Station - Lining structure - Project construction
- Research results - Rock mass - Rock types - Slope engineering - Surrounding
rock - Tunnel projects - Tunnel wall - Vibration velocity
Classification code: 951 Materials Science - 931.1 Mechanics - 921.6 Numerical
Methods - 804 Chemical Products Generally - 502.1 Mine and Quarry Operations - 484
Seismology - 481.1 Geology - 406.2 Roads and Streets - 401.2 Tunnels and Tunneling
Database: Compendex
196.
Title: Quantitative studies of the effectiveness of perennial grass on soil and water conservation
Authors: Li, Peng1 ; Li, Zhanbin1, 2 ; Cheng, Shengdong1
Author affiliation: 1 Key Lab of Northwest Water Resources and Environment Ecology of
MOE, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
2 Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of
Education, Yangling, Shaanxi 712100, China
Corresponding author: Li, P. ([email protected])
Source title: Civil Engineering and Urban Planning 2012 - Proceedings of the 2012 International
Conference on Civil Engineering and Urban Planning
Abbreviated source title: Civ. Eng. Urban Plann. - Proc. Int. Conf. Civ. Eng. Urban Plann.
Monograph title: Civil Engineering and Urban Planning 2012 - Proceedings of the 2012
International Conference on Civil Engineering and Urban Planning
Issue date: 2012
Pages: 491-497
Language: English
ISBN-13: 9780784412435
Conference name: 2012 International Conference on Civil Engineering and Urban Planning,
CEUP
Sponsor: Yan Tai University; Chinese Culture University; Communication University of China;
Constr. Inst. (CI) Am. Soc. Civ. Eng.
Publisher: American Society of Civil Engineers (ASCE), 1801 Alexander Graham Bell Drive,
Reston, VA 20191-4400, United States
Abstract: Based on the observation of the runoff plots of Onobrychis viciifolia Scop and
Astragalus absurgens on the Ansai Ecological Experimental Station, the long-term effect of
vegetation cover on soil and water loss was studied. Results of the runoff and sediment on the
plots indicated that there existed exponential relation between the soil erosion modulus under each
rain by unit rainfall erosivity and vegetation cover: M=ae-bF. The results alsoverified that the
artificial forage grass generally degraded in 5 th or 6th year after planting, mainly with the
decrease of coverage, and needs human management for improving. It is clear that runoff and
sediment decreased with the increase of vegetation cover; while with the vegetation degradation,
its effectiveness to conserve soil and water also depressed. © 2012 ASCE.
Main heading: Soil conservation
Controlled terms: Rain - Runoff - Sedimentology - Soils - Urban planning Vegetation - Water conservation
Uncontrolled terms: Experimental stations - Exponential relation - Forage grass Long-term effects - Perennial grass - Quantitative relations - Quantitative study Rainfall erosivity - Soil and water - Soil and water conservation
- Soil and water loss
- Soil erosion - Vegetation cover - Vegetation degradation
Classification code: 403.1 Urban Planning and Development - 443.3 Precipitation 444.1 Surface Water - 481.1 Geology - 483.1 Soils and Soil Mechanics - 821
Agricultural Equipment and Methods; Vegetation and Pest Control
DOI: 10.1061/9780784412435.087
Database: Compendex
197.
Title: Beam element considering the warping effect of cross section in large displacement finite
element analysis
Authors: Li, Pengfei1, 2 ; Yuan, Yuan1 ; Liu, Hongzhao1
Author affiliation: 1 School of Mechanical and Precision Instrumental Engineering, Xi'an
University of Technology, Xi'an, Shaanxi province, 710048, China
2 Xi'an Typical Industry Co., Ltd., Xi'an, Shaanxi province, 710068, China
Corresponding author: Li, P. ([email protected])
Volume: 152-154
Monograph title: Mechanical Engineering and Materials: ICMEM 2012
Issue date: 2012
Pages: 958-963
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853528
Conference name: 2012 International Conference on Mechanical Engineering and Materials,
ICMEM 2012
Abstract: A simple two-dimensional shear deformable finite beam element is developed in order
to examine the effect of the high order interpolation on the modes of deformation of the beam
cross section using the ANCF finite element. The new element allows for effect of warping that
cannot be captured using previously introduced ANCF beam elements, and relaxes the assumption
of planar cross section. The displacement field of the new element is assumed to be cubic in the
axial direction and quadratic in the transverse direction. Using this displacement field, new shape
functions are formulated and include the quadratic of the transverse direction instead of the linear
expression. The displacement gradient and transverse strain component obtained using the new
higher order element are introduced. Numerical example is presented in order to compare the
results obtained using the new finite element and the results obtained using previously developed
ANCF finite element. The results reveal that the cross section remains as a curve surface not a
planar one. © (2012) Trans Tech Publications.
Main heading: Thin walled structures
Controlled terms: Deformation - Finite element method - Mechanical engineering
Uncontrolled terms: Absolute nodal coordinate formulation - Axial direction - Beam
cross section - Beam cross section deformation - Beam elements - Cross section Curve surface - Displacement field - Displacement gradients - Finite beam elements
- Finite Element - High order - Higher order elements - Large displacements Linear expression - Numerical example - Shape functions - Transverse directions Transverse strain - Warping effects
Classification code: 408 Structural Design - 421 Strength of Building Materials; Mechanical
Properties - 422 Strength of Building Materials; Test Equipment and Methods - 608
Mechanical Engineering, General - 921.6 Numerical Methods
Database: Compendex
198.
Title: Structure analysis image quality measurement
Authors: Li, Qian1 ; Yang, Cui1 ; Liu, HongMei1 ; Zhang, FangFang2
Author affiliation: 1 School of Technical Physics, Xidian University, Xi'an Shaanxi, China
2 Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an
Shaanxi, China
Corresponding author: Li, Q. ([email protected])
Source title: Proceedings of 2011 International Conference on Image Analysis and Signal
Processing, IASP 2011
Abbreviated source title: Proc. Int. Conf. Image Anal. Signal Process., IASP
Monograph title: Proceedings of 2011 International Conference on Image Analysis and Signal
Issue date: 2011
Pages: 439-443
Language: English
ISBN-13: 9781612848808
Conference name: 3rd International Conference on Image Analysis and Signal Processing, IASP
2011
United States
Abstract: In this paper, a novel image quality assessment, called Structure Analysis Image
Quality Measurement (SAIM), is proposed by evaluating the difference of the distorted image
from the reference image on three aspects: the average luminance, edge intensity and orientation.
It is sensitive to edge change, which consists well with the perceptual characteristics of human
vision. The experiment results demonstrate its superiority over the most popular metrics, such as
PSNR and MSSIM, on "LIVE Image Quality Assessment Database". And furthermore, SAIM can
find a wide application in various fields, because of its capability of estimating the similarity
between any two signals. © 2011 IEEE.
Main heading: Quality control
Controlled terms: Image analysis - Image quality - Signal processing
Uncontrolled terms: Distorted images - edge intensity - Human vision - Image
quality assessment - Image quality measurement - Reference image - structure analysis
Classification code: 716.1 Information Theory and Signal Processing - 741 Light, Optics and
Optical Devices - 913.3 Quality Assurance and Control
DOI: 10.1109/IASP.2011.6109079
Database: Compendex
199.
Title: The research on calculation method of pump efficiency
Authors: Li, Qiang1 ; Yin, Xudong1
Corresponding author: Li, Q. ([email protected])
Volume: 503-504
Monograph title: Frontiers of Manufacturing Science and Measuring Technology II
Issue date: 2012
Pages: 968-971
Language: English
ISSN: 10226680
ISBN-13: 9783037854044
Conference name: 2012 2nd International Conference on Frontiers of Manufacturing Science
and Measuring Technology, ICFMM 2012
Sponsor: Control Engineering and Information Science Research Association; Int. Front. Sci.
Technol. Res. Assoc.; Trans Tech Publications; Chin-Yi University of Technology
Abstract: Pump efficiency as an important parameter in the modern production of oil field. How
to get the actual pump efficiency accurately and quickly is very important. In order to obtain
accurate pump efficiency, the ground dynamometer card of the oil well is taken as the research
object. According to find the traveling valve factual open and close position, we can get the actual
efficient stroke and the load change of sucker rod. Then pump efficiency is computed using the
actual efficient stroke and the load change of sucker rod. © (2012) Trans Tech Publications.
Main heading: Pumps
Controlled terms: Dynamometers - Efficiency - Manufacture - Oil fields - Oil
well pumps - Oil wells
Uncontrolled terms: Calculation methods - Dynamometer card - Efficient stroke Load change - Pump efficiency - Research object - Sucker rod
Classification code: 512.1.1 Oil Fields - 618.2 Pumps - 913.1 Production Engineering 913.4 Manufacturing - 943.1 Mechanical Instruments
Database: Compendex
200.
Title: Real-time visual analyses on failure criteria of slope stability in strength reduction finite
element method
Authors: Li, Rong Jian1 ; Zheng, Wen1 ; Liu, Jun Ding1 ; Xie, Tao1
Xi'an 710048, China
Corresponding author: Li, R.J. ([email protected])
Volume: 430-432
Monograph title: Frontiers of Advanced Materials and Engineering Technology, FAMET 2012
Issue date: 2012
Pages: 1155-1158
Language: English
ISSN: 10226680
ISBN-13: 9783037853399
Conference name: 2012 International Conference on Frontiers of Advanced Materials and
Engineering Technology, FAMET 2012
Sponsor: Int. Front. Sci. Technol. Res. Assoc.; HongKong Control Eng. Inf. Sci. Res. Assoc.
Abstract: The failure criteria in strength reduction FEM are not unified and often affected greatly
by researcher's experience and judgment, so it is necessary to discuss the applicability and the
difference of some various criteria of instability of slope. According to the thought of visualization
in real time computing, the corresponding visual program is developed based on some common
failure criteria adopted simultaneity in the strength reduction FEM. Then, through the real-time
visual interface, the comparisons of the common failure criteria are conducted. The results show
that, the safety factor of a simple slope can be determined clearly from the inflection point of the
computational curve based on the criterion of the characteristic nodal displacement and the
criterion of equivalent plastic strain exceeding a certain value, by contrast, the safety factor which
based on the criterion of the iteration non-convergence lag behind the others in the same condition.
© (2012) Trans Tech Publications.
Controlled terms: Engineering technology - Finite element method - Safety factor Stability criteria - Strength of materials - Visualization
Uncontrolled terms: Equivalent plastic strain - Failure criteria - Inflection points Nodal displacement - Real time computing - Slope - Strength reduction FEM Strength reduction finite element method - Visual analysis - Visual Interface
Classification code: 951 Materials Science - 921.6 Numerical Methods - 902.1
Engineering Graphics - 902 Engineering Graphics; Engineering Standards; Patents - 961
Systems Science - 901 Engineering Profession - 422 Strength of Building Materials; Test
Equipment and Methods - 421 Strength of Building Materials; Mechanical Properties 406.2 Roads and Streets - 662.1 Automobiles
Database: Compendex
201.
Title: Experimental analyses of dynamic damage of the reinforced concrete pile
Authors: Li, RongJian1, 2 ; Yan, Rui1 ; Li, HaiTao1
2 Shaanxi provincial Key Laboratory of Loess Mechanics and Engineering, Xi'an, 710048,
China
Corresponding author: Li, R. ([email protected])
Volume: 204-208
Monograph title: Progress in Industrial and Civil Engineering
Issue date: 2012
Pages: 3182-3185
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854846
Conference name: 2012 International Conference on Civil, Architectural and Hydraulic
Engineering, ICCAHE 2012
Conference location: Zhangjiajie, China
Abstract: The earthquake often leads to the damage of stabilizing concrete pile. In order to
analyze the damage mechanism of the reinforced concrete stabilizing pile, this article uses the
developed concrete model piles, studies the seismic deformation of a slope reinforced with
stabilizing piles and the dynamic broken damage phenomenon of pile by using the dynamic
centrifuge model test without groundwater. The results show that the earthquake action leads to
the obvious increase of dynamic excess bending moments, eventually results in the pile's breaking
damage. © (2012) Trans Tech Publications, Switzerland.
Main heading: Piles
Controlled terms: Civil engineering - Earthquakes - Fluid mechanics - Groundwater
- Pile foundations - Reinforced concrete - Seismic response - Shore protection
Uncontrolled terms: Centrifuge tests - Concrete model - Damage mechanism Dynamic centrifuge model tests - Dynamic damage - Earthquake action - Experimental
analysis - Micro-concrete - Pile damage - Seismic deformation - Stabilizing piles
Classification code: 931.1 Mechanics - 484 Seismology - 483.2 Foundations - 444.2
Groundwater - 412 Concrete - 409 Civil Engineering, General - 408.2 Structural
Members and Shapes - 408 Structural Design - 407.1 Maritime Structures
Database: Compendex
202.
Title: Diffusion model with Schwarz method in information potential field
Authors: Li, Rongjian1 ; Wei, Wei2
Author affiliation: 1 Department of Mathematical Sciences, Xi'an Jiaotong University, Xi'an
710049, China
2 School of Electronic and Information Engineering, Xi'an University of Technology, Xi'an
710048, China
Corresponding author: Li, R.
Volume: 11
Issue: 6
Issue date: 2012
Pages: 725-729
Language: English
ISSN: 18125638
E-ISSN: 18125646
Abstract: One active application of the wireless sensor networks is the mobile vehicle navigation.
In this study, we propose a new potential field method based upon diffusion equation and gradient
descent algorithm to achieve more flexibility and adaptability in searching the best path. Based on
the mathematical model obtained, Schwarz methods are introduced. We give a short survey of
Schwarz method for partial differential equations, including the motivation, its evolution process
such as continuous and discrete versions and recent achievements. © 2012 Asian Network for
Scientific Information.
Main heading: Partial differential equations
Controlled terms: Mathematical models - Wireless sensor networks
Uncontrolled terms: Active application - Best paths - Diffusion equations - Diffusion
model - Evolution process - Gradient descent algorithms - Information field Information potential - Mobile vehicle navigation - Potential field methods
- Schwarz
method - Variation models
Classification code: 732 Control Devices - 921 Mathematics - 921.2 Calculus
DOI: 10.3923/itj.2012.725.729
Database: Compendex
203.
Title: An over-modulation in matrix converter based on limit-trajectory
Authors: Li, Shengmin1 ; Lu, Jing1 ; Zhong, Yanru1
Corresponding author: Li, S.
Volume: 27
Issue: 6
Pages: 110-117+125
Language: English
ISSN: 10006753
CODEN: DIJXE5
Abstract: Aimed at problem of poor quality of waveforms and that of complicated modulation
strategy, a novel over-modulation in matrix converter based on limit-trajectory is proposed in this
paper. This strategy is adopted in matrix converter based on the virtual uncontrollable modulation
and used to ensure linear modulation in all over-modulation regions. The algorithm is simple and
the simpler control algorithm reduces memory space and linear calculation is instead of look-up
table. Simulation and experiments show that the voltage transfer ratio can be improved from 0.95
to 1.0 and the quality of output waveforms is effectively enhanced.
Main heading: Trajectories
Controlled terms: Algorithms - Modulation - Table lookup
Uncontrolled terms: Linear calculation - Linear modulations - Look up table - Matrix
converter - Memory space - Modulation strategy - Output waveform Overmodulation - Virtual uncontrollable rectifier - Voltage transfer ratio - Wave forms
Classification code: 921 Mathematics - 723.1 Computer Programming - 723 Computer
Software, Data Handling and Applications - 718 Telephone Systems and Related Technologies;
Line Communications - 717 Optical Communication - 716 Telecommunication; Radar,
Radio and Television - 404.1 Military Engineering
Database: Compendex
204.
Title: Microstructure and mechanical properties of ZrO2 (Y 2O3)-Al2O3 nanocomposites
prepared by spark plasma sintering
Authors: Li, Shufeng1, 3 ; Izui, Hiroshi1 ; Okano, Michiharu2 ; Zhang, Weihua3 ; Watanabe,
Taku1
Author affiliation: 1 College of Science and Technology, Nihon University, 7-24-1,
Narashinodai, Funabashi, Chiba 274-8501, Japan
2 College of Science and Technology, Nihon University, 1-8-14, Kandasurugadai, Chiyoda,
Tokyo 101-8308, Japan
3 College of Materials Science and Technology, Xi'An University of Technology, 5 South Jinhua
Road, Xi'an, Shaanxi 710048, China
Corresponding author: Li, S. ([email protected])
Source title: Particuology
Abbreviated source title: Particuology
Volume: 10
Issue: 3
Pages: 345-351
Language: English
ISSN: 16742001
Abstract: Zirconia (yttria)-alumina ceramic nanocomposites were fabricated from different
powders by spark plasma sintering (SPS). One powder was a commercially available
nanocomposite powder TZP-3Y20A, consisting of 3 mol% yttria-stabilized zirconia (3-YSZ)
reinforced with 20 wt% alumina, and the other, used as a comparison, was a conventional
mechanically mixed powder 3YSZ-20A, a blend made of 3 mol% yttria-stabilized zirconia
powder ZrO 2 (3Y) and 20 wt% α-alumina powder. The effect of the sintering temperature on the
densification, the sintering behavior, the mechanical properties and the microstructure of the
composites was investigated. The results showed that the density increased with increasing
sintering temperature, and thus, the mechanical properties were strengthened because of the
increased densification. The nanocomposite powder TZP-3Y20A was easily sintered, and good
mechanical properties were achieved as compared with the powder from the conventional
mechanically mixed method, the maximum flexural strength and fracture toughness of which were
967 MPa and 5.27 MPa m1/2, respectively. © 2011 Chinese Society of Particuology and Institute
of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights
reserved.
Main heading: Yttria stabilized zirconia
Controlled terms: Alumina - Densification - Density (specific gravity) - Fracture
toughness - Mechanical properties - Microhardness - Microstructure Nanocomposites - Spark plasma sintering - Yttrium alloys - Zirconia - Zirconium
alloys
Uncontrolled terms: Alumina ceramic - Alumina powder - Microstructure and
mechanical properties - Mixed method - Mixed powder - Nano-composite powders Sintering behaviors - Sintering temperatures - Zirconia-alumina
Classification code: 951 Materials Science - 933.1 Crystalline Solids - 933 Solid State
Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 812.1 Ceramics 804.2 Inorganic Compounds - 802.3 Chemical Operations - 761 Nanotechnology 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 482.2.1
Gems - 421 Strength of Building Materials; Mechanical Properties
DOI: 10.1016/j.partic.2011.05.002
Database: Compendex
205.
Title: Synthesis of Mg2Si/MgO nanofibers using SiO2 nanofibers in Mg vapor
Authors: Li, W.1 ; Yang, Q.2 ; Tatsuoka, H.3
Author affiliation: 1 Graduate School of Science and Technology, Shizuoka University, 3-5-1
Johoku, Naka-ku, Hamamatsu 432-8011, Japan
2 Faculty of Material Science and Engineering, Xi'an University of Technology, 5 South Jinhua
Road, Xi'an 710048, China
3 Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561,
Japan
Corresponding author: Tatsuoka, H. ([email protected])
Source title: e-Journal of Surface Science and Nanotechnology
Abbreviated source title: e-J. Surf. Sci. Nanotechnol.
Volume: 10
Pages: 297-300
Language: English
E-ISSN: 13480391
Publisher: Surface Science Society of Japan, Hongo Corporation 402, 2-40-13 Hongo,
Bunkyo-ku, Tokyo, 113-0033, Japan
Abstract: Mg2Si/MgO nanofibers were synthesized by the heat treatment of amorphous SiO2
nanofibers in Mg vapor, and their morphological and structural properties were then investigated.
Well-aligned Mg2Si/MgO nanofibers with high density were synthesized, which preserves the
general morphology of the original SiO2 nanofibers. The morphology and crystalline quality of
Mg2Si/MgO nanofibers depend on the reaction temperature. This reaction provides a low cost
method to synthesize nanoscale thermoelectric materials with high crystalline quality to enhance
thermoelectric properties. © 2012 The Surface Science Society of Japan.
Main heading: Nanofibers
Controlled terms: Crystalline materials - Magnesia - Magnesium - Morphology Silicides - Silicon oxides - Thermoelectric equipment - Thermoelectricity Transmission electron microscopy - Vapors
Uncontrolled terms: Crystalline quality - High density - High-crystalline quality Low cost methods - Nano scale - Reaction temperature - Scanning transmission
electron microscopy - Thermoelectric material - Thermoelectric properties Well-aligned
Classification code: 951 Materials Science - 933.1 Crystalline Solids - 933 Solid State
Physics - 804.2 Inorganic Compounds - 804 Chemical Products Generally - 761
Nanotechnology - 741.3 Optical Devices and Systems - 615.4 Thermoelectric Energy 542.2 Magnesium and Alloys
DOI: 10.1380/ejssnt.2012.297
Database: Compendex
206.
Title: A competitive-cooperative co-evolutionary optimization algorithm based on cloud model
Authors: Li, Wei1 ; Wang, Lei1
Author affiliation: 1 Faculty of Computer Science and Engineering, Xi'an University of
Corresponding author: Li, W. ([email protected])
Source title: Proceedings of 4th International Workshop on Advanced Computational
Intelligence, IWACI 2011
Abbreviated source title: Proc. Int. Workshop Adv. Comput. Intell., IWACI
Monograph title: Proceedings of 4th International Workshop on Advanced Computational
Intelligence, IWACI 2011
Issue date: 2011
Pages: 662-669
Language: English
ISBN-13: 9781612843735
Conference name: 4th International Workshop on Advanced Computational Intelligence, IWACI
2011
United States
Abstract: For the problem of lacking efficient regulation mechanism between local search and
global search in an evolution algorithm based on cloud model (CEBA), a competitive-cooperative
co-evolutionary optimization algorithm based on cloud model (CECD) is proposed in this paper. It
introduces the concept of co-evolution in biological systems into intelligent computing. The
proposed algorithm makes cooperation evolution between the parent cloud droplets during the
process of evolution to enhance the viability of the individual partners and the exploratory
capability of the algorithm. It effectively ensures the diversity of the cloud droplets in the
evolution. It also employs the competition evolution between sub-population to ensure the global
convergence and stability of the proposed algorithm. Theory analysis and experiments on 12
widely used benchmark problems show that when compared with the CEBA which only uses
individual fitness to control the biological evolution, CECD algorithm is capable of improving
search ability, convergence speed, solution quality and algorithm stability. © 2011 IEEE.
Main heading: Evolutionary algorithms
Controlled terms: Benchmarking - Biology - Drops - Intelligent computing
Uncontrolled terms: Algorithm stability - Bench-mark problems - Biological evolution
- Cloud droplets - Cloud models - Co-evolution - Co-evolutionary - Convergence
speed - Evolution algorithms - Global convergence - Global search - Local search
- Optimization algorithms - Process of evolution - Regulation mechanisms - Solution
quality
Classification code: 921 Mathematics - 913 Production Planning and Control;
Manufacturing - 912 Industrial Engineering and Management - 723.4 Artificial
Intelligence - 723 Computer Software, Data Handling and Applications - 461.9 Biology 443.1 Atmospheric Properties
DOI: 10.1109/IWACI.2011.6160090
Database: Compendex
207.
Title: Study of water security for sustainable economic development in Shanxi based on
AHP-BN
Authors: Li, Weiqian1 ; Xie, Jiancang1 ; Li, Jianxun1, 2 ; Chen, Tianqing1
Author affiliation: 1 Water Resources Research Institute, Xi'an University of Technology,
Xi'an 710048, China
2 Institute of Business and Administration, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Li, W. ([email protected])
Volume: 31
Issue: 5
Pages: 6-13
Language: Chinese
ISSN: 10031243
Abstract: To promote sustainable economic development (SED) and efficient use of water
resources in Shaanxi province, an approach of evaluating the degree of SED is proposed using
analytic hierarchy process (AHP) and Bayesian network (BN) combined with water resources
assessment. In this approach, a SED index system is constructed using AHP from three aspects,
the expansibility, sustainability and compatibility of regional economy, society, resources and
environments. Delphi method and BN self-learning are used to determine the weight of each index
for calculation of various factors of economic development and water resources guarantee ability
for the related cities and districts, and BN reasoning algorithm for calculation of the sustainability
of regional economy. Then, the relation between changes in water resources index and SED is
analyzed. Results show that the SED degrees in the regions of Shanbei and Guanzhong would be
enhanced if each index of water resources is increased by 30%. Based on these results, this paper
suggests several safeguard measures of water resources for the SED in Shaanxi, hence providing a
feasible guideline for development of this province. © right.
Controlled terms: Bayesian networks - Economics - Hierarchical systems - Regional
planning - Sustainable development
Uncontrolled terms: Analytical Hierarchy Process - Delphi method - Economic
development - Efficient use of water - Index systems - Reasoning algorithms Regional economy - Self-learning - Sustainable economic development - Water
economy - Water resources assessment - Water security
Classification code: 403.2 Regional Planning and Development - 444 Water Resources -
911.2 Industrial Economics - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set
Theory - 961 Systems Science - 971 Social Sciences
Database: Compendex
208.
Title: Discussion on solutions to SSN based on Ansoft simulation analysis
Authors: Li, X.P.1 ; Li, D.2 ; Liu, Y.Q.3
Author affiliation: 1 Information and Control Department of Xi'an University of Technology,
2 Humanities Department of Xi'an University of Technology, Xi'an 710071, China
3 School of Physics and Electrical Engineering, Weinan Normal University, 714000, China
Corresponding author: Li, X. P. ([email protected])
Volume: 529
Monograph title: Optical, Electronic Materials and Applications II
Issue date: 2012
Pages: 3-8
Language: English
ISSN: 10226680
ISBN-13: 9783037854303
Conference name: 2nd International Conference on Optical, Electronic Materials and
Applications 2012, OEMA 2012
Sponsor: National Natural Science Foundation of China (NSFC).
Abstract: To analyze the inhibition to SSN, we use the design and emulation tools from Ansoft
Co., which are used in the optimization design on PDS, integrated with particular circuit designs.
Firstly, the traditional means of adding Decoupling Capacitor is adopted to inspect and verify that
increased decoupling capacitors will help to increase high frequency response. Secondly, we
introduce a high impedance electromagnetic surface texture, which can be applied to decrease
SSN. Lastly, we support that EBG is better than traditional adding decoupling capacitor. © (2012)
Main heading: Capacitors
Controlled terms: Materials science
Uncontrolled terms: Circuit designs - Decoupling capacitor - EGB - High frequency
response - High-impedance electromagnetic surfaces - Optimization design - Power
integrity - Simulation analysis - SSN
Classification code: 704.1 Electric Components - 951 Materials Science
DOI: 10.4028/www.scientific.net/AMR.529.3.
Database: Compendex
209.
Title: Application of improved knowledge evolutionary algorithm in distribution network
reconfiguration
Authors: Li, Xue1, 2 ; Cui, Duwu1 ; Wang, Chaoxue3 ; Fei, Rong1
Technology, No. 5, South Jinhua Road, Xi'an 710048, China
2 International Business School, Shaanxi Normal University, No. 199, South Chang'an Road,
Xi'an 710062, China
3 School of Information and Control Engineering, Xi'an University of Architecture and
Technology, No. 13, Yanta Road, Xi'an 710055, China
Corresponding author: Li, X. ([email protected])
Source title: ICIC Express Letters, Part B: Applications
Abbreviated source title: ICIC Express Lett Part B Appl.
Volume: 3
Issue: 3
Pages: 543-550
Language: English
ISSN: 21852766
Publisher: ICIC Express Letters Office, Tokai University, Kumamoto Campus, 9-1-1, Toroku,
Kumamoto, 862-8652, Japan
Abstract: This paper presents a novel improved knowledge evolutionary algorithm (IK EA) for
distribution network reconfiguration, which consists of the description of the problem, the idea of
the improved algorithm, the encoding rules, the fitness function, operators and the process of
IKEA. The application of IKEA solves the problem of distribution network reconfiguration. The
proposed algorithm was applied in three well known distribution networks (IEEE16-bus,
IEEE33-bus and IEEE69-bus) from published literature. In the 100 times simulation, IKEA could
find the global optimal solution in each time and reduced the times of iteration. It shows that
IKEA is feasible and efficient for distribution network reconfiguration comparison with other
intelligent algorithm. © 2012 ICIC International.
Main heading: Buses
Uncontrolled terms: Distribution network reconfiguration - Fitness functions - Global
optimal solutions - Improved algorithm - Inheritance operation - Intelligent Algorithms
Classification code: 663.1 Heavy Duty Motor Vehicles - 723 Computer Software, Data
Handling and Applications - 921 Mathematics
Database: Compendex
210.
Title: View synthesis based on Delaunay triangulation and epipolar constraint
Authors: Li, Xue1, 2 ; He, Yuyao2 ; Sui, Liansheng3 ; Zhang, Zhenshan3
Author affiliation: 1 School of Electronic and Control Engineering, Chang'an University, Xi'an
710064, China
2 College of Marine, Northwestern Polytechnical University, Xi'an 710071, China
3 School of Computer Science and Technology, Xi'an University of Technology, Xi'an 710048,
China
Corresponding author: Li, X. ([email protected])
Source title: Journal of Computational Information Systems
Abbreviated source title: J. Comput. Inf. Syst.
Volume: 8
Issue: 13
Pages: 5391-5400
Language: English
ISSN: 15539105
Publisher: Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States
Abstract: In this paper we propose an approach which can compute the dense relative affine
structure for a pair images. Generally, the algorithms based on the relative affine structure only
obtain the sparse parallax of a set of matching points between the pair of images. Firstly, our
approach segments each image using the Delaney triangulation, and then compute matching points
in the corresponding triangular area with bilinear interpolation. Secondly, though the dense
matching points are obtained, there exist some mistaken matching points. As a result, we apply the
epipolar geometry constraint to discard these wrong matching points. Finally, we validate the
possibility of our approach with experiments. © 2011 by Binary Information Press.
Main heading: Image matching
Controlled terms: Geometrical optics - Triangulation
Uncontrolled terms: Bilinear interpolation - Delaunay triangulation - Epipolar constraints
- Epipolar geometry - Matching points - Relative affine structure - View synthesis
Classification code: 405.3 Surveying - 741 Light, Optics and Optical Devices - 741.1
Light/Optics
Database: Compendex
211.
Title: Comprehensive entropy weight observability-controllability risk analysis and its
application to water resource decision-making
Authors: Li, Xun-Gui1 ; Wei, Xia1, 2 ; Huang, Qiang3
Author affiliation: 1 College of Earth and Environmental Sciences, Lanzhou University,
Lanzhou 730000, Gansu Province, China
2 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy
of Sciences, Lanzhou 730000, Gansu Province, China
3 Institute of Water Resources, Xi'an University of Technology, Xi'an 710048, Shaanxi Province,
China
Corresponding author: Li, X.-G. ([email protected])
Source title: Water SA
Abbreviated source title: Water SA
Volume: 38
Issue: 4
Pages: 573-580
Language: English
ISSN: 03784738
E-ISSN: 18167950
CODEN: WASADV
Publisher: South African Water Research Commission, Private Bag X03, Gezina, 0031, South
Africa
Abstract: Decision making for water resource planning is often related to social, economic and
environmental factors. There are various methods for making decisions about water resource
planning alternatives and measures with various shortcomings. A comprehensive entropy weight
observability-controllability risk analysis approach is presented in this study. Computing methods
for entropy weight (EW) and subjective weight (SW) are put forward based on information
entropy theory and experimental psychology principles, respectively. Comprehensive weight (CW)
consisting of EW and SW is determined. The values of observability-controllability risk (Roc) and
gain by comparison (Gbc) are obtained based on the CWs. The quantitative analysis of
alternatives and measures is achieved based on Roc and Gbc. A case study on selection of water
resource planning alternatives and measures in the Yellow River Basin, China, was performed.
Results demonstrate that the approach presented in this study can achieve optimal
decision-making results.
Main heading: Decision making
Controlled terms: Controllability - Observability - Resource allocation - Water
resources
Uncontrolled terms: Analysis approach - Analysis of alternatives - Computing methods
- Entropy weights - Environmental factors - Gain by comparison - Information
entropy - Making decision - Water resource planning - Yellow River basin Yellow River basin , China
Classification code: 444 Water Resources - 731.1 Control Systems - 912.2 Management
DOI: http://dx.doi.org/10.4314/wsa.v38i4.13
Database: Compendex
212.
Title: Experiments of ultrasonic-assisted wire sawing of SiC single crystal
Authors: Li, Yan1 ; Wang, Xiao-Ye1, 2 ; Li, Shu-Juan1 ; Zheng, Jian-Ming1 ; Yuan, Qi-Long1
2 Department of Electronic and Mechanical Engineering, Baoji University of Arts and Sciences,
Baoji 721007, China
Corresponding author: Li, Y. ([email protected])
Volume: 41
Issue: 4
Pages: 1076-1081
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: Focus on the lower sawing efficiency, inferior surface roughness and flatness, severe
wire saw wear and fracture etc in the sawing process of single crystal SiC wafers, a machining
method that the wire saw is executed transverse ultrasonic vibration in sawing single crystal SiC
wafers is put forward. Experiments are conducted to compare the conventional sawing with
ultrasonic-assisted sawing process, the results show that the sawing force in ultrasonic-assisted
sawing single crystal SiC wafers is decreased 37%-52% comparing with conventional wire sawing
process, and the decreasing trend is significant with increasing of work-piece feed rate; Surface
roughness is decreased about 26% to 55%, the wafers surface morphology is uniform, no scratches
and much better than that in the conventional sawing methods; Wear of wire saws is reduced by
nearly 40% and the sawing efficiency of nearly 56%.
Main heading: Sawing
Controlled terms: Experiments - Silicon carbide - Single crystals - Surface roughness
- Wire
Uncontrolled terms: Feed-rates - Machining methods - Sawing process - Ultrasonic
vibration - Wire saw - Wire-sawing - Work pieces
Classification code: 535.2 Metal Forming - 604.1 Metal Cutting - 804.2 Inorganic
Compounds - 901.3 Engineering Research - 931.2 Physical Properties of Gases, Liquids
and Solids - 933.1 Crystalline Solids
Database: Compendex
213.
Title: Influence of initial deviation in vibrating deep hole drilling on hole straightness error
Authors: Li, Yan1 ; Kong, Lingfei1
Author affiliation: 1 School of Mechanical and Instrumental Engineering, Xi'an University of
Corresponding author: Kong, L. ([email protected])
Source title: Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
Abbreviated source title: Jixie Gongcheng Xuebao
Volume: 48
Issue: 13
Pages: 167-173
Language: Chinese
ISSN: 05776686
CODEN: CHHKA2
Publisher: Editorial Office of Chinese Journal of Mechanical, 22 Baiwanzhuang Dajie, Beijing,
100037, China
Abstract: Based on the extended Hamilton principle, the boring trepanning association (BTA)
drilling shaft is established in the form of the Timoshenko element model using finite element
method for vibrating drilling process. This model is developed that considers the axial vibration of
drilling shaft containing vibrating cutting force and the hydrodynamic forces of cutting fluid. The
linear degrees of freedom will be truncated by using modal synthesis with free-interface but
nonlinear degrees of freedom of the system are retained in the physical space, and thus, the DOF
of the coupled system are reduced. Further, the updated model is acquired to study the relationship
between the axial hole straightness deviation and cutting parameters such as drilling shaft length
and drilling depth. Simultaneously, the change rules of the axial hole straightness are obtained for
the different position of intermediate supports or different initial deviation, so these can make a
good reference for the dynamic design of large-scale drilling machine. Through the combination
of theories with experiment, the correctness and effectiveness of the above methods have been
verified. © 2012 Journal of Mechanical Engineering.
Main heading: Mechanics
Controlled terms: Cutting fluids - Finite element method - Modal analysis
Uncontrolled terms: Axial vibrations - Boring trepanning associations - Coupled systems
- Cutting forces - Cutting parameters - Deep hole drilling - Drilling process Drilling shaft - Dynamic design - Finite element models
- Hamilton principle Hydrodynamic forces - Initial deviation - Intermediate support - Modal synthesis Straightness errors - Synthesis techniques - Updated model
Classification code: 607.1 Lubricants - 921 Mathematics - 921.6 Numerical Methods 931.1 Mechanics
DOI: 10.3901/JME.2012.13.167
Database: Compendex
214.
Title: Analysis on chaotic characters of river runoff
Authors: Li, Yanbin1 ; You, Feng1 ; Huang, Qiang2 ; Xu, Jianxin1 ; Savenije, Hubert. H. G.3
Author affiliation: 1 North China University of Water Conservancy and Hydroelectric Power,
Zhengzhou 450011, China
3 Water Resources Section Faculty of Civil Engineering and Geosciences, Delft University of
Technology, GA Delft, Netherlands
Volume: 31
Issue: 3
Pages: 11-17+30
Language: Chinese
ISSN: 10031243
Abstract: This paper proposes an analysis method of river runoff chaotic character with a
discussion on chaos theory and applicability of this method to river runoff system, applies the
method to the Yellow River and reconstructs a phase space of its monthly runoff. The conclusions
are as follow. Satiable correlation dimension of natural runoff is greater than the measured runoff.
For a dynamical model, at least 4 variables and at most 8 variables are needed to depict the
variation character of measured runoff, while at least 5-6 and at most 12 for natural runoff.
Measured runoff has different chaotic character from that of natural runoff at the same
hydrological station in the same time period, and the downstream reach has stronger chaotic
character than the upstream. The chaotic character in the period from 1950s to the beginning of
this century is somewhat stronger than that of 1920s to 1970s. The chaotic character depends on
the length of runoff time series, and longer series has a stronger character. The chaotic character
revealed in the present study would be a basis for development of dynamical models and runoff
forecast for the Yellow River. © right.
Main heading: Rivers
Controlled terms: Chaos theory - Phase space methods - Runoff - Water resources
Uncontrolled terms: Chaotic characters - Hydrology and water resource - Phase space
reconstruction - River runoffs - Yellow river
Classification code: 444 Water Resources - 444.1 Surface Water - 921 Mathematics
Database: Compendex
215.
Title: On forecasting of production cycle of make-to-order products
Authors: Li, Yang Shui1 ; Liu, Meng1 ; Li, Li1
Author affiliation: 1 Faculty of Economics and Management, Xi'an University of Technology,
XAUT, Xi'an, China
Corresponding author: Li, Y.S. ([email protected])
Volume: 3
Issue date: 2011
Pages: 3-6
Language: English
ISBN-13: 9780769545233
United States
Abstract: In the context of customer needs becoming individualism and diversified, mass
customization has become an important production mode for modern manufacturing. As per
product production cycle (focus on customization), companies organize production activities. This
study, in conformity with the generic predict production module, deals with factors including
forecast special module design, manufacturing and assembly process production cycle. The study
establishes a production cycle prediction model based on make-to-order whereby to make an
empirical analysis of Xi'an Shiky High Voltage Electric Co. Ltd. The major finding is that the
average of the cycle of product manufacturing and assembly is 520 hours, showing a high
accuracy for being close to reality. © 2011 IEEE.
Main heading: Manufacture
Controlled terms: Forecasting - Industrial engineering - Information management Innovation - Mathematical models
Uncontrolled terms: Assembly process - Customer need - Empirical analysis - High
voltage - Make to order - Mass customization - Modularity - Module design Product manufacturing - Product production - Production activity - Production cycle
- Production modes
Classification code: 537.1 Heat Treatment Processes - 912 Industrial Engineering and
Management - 921 Mathematics
DOI: 10.1109/ICIII.2011.287
Database: Compendex
216.
Title: Unipolar resistive switching behavior study in CuxO thin films at different annealing
temperatures
Authors: Li, Ying1, 2 ; Zhao, Gaoyang2 ; Shi, Fen2, 3
Author affiliation: 1 Advanced material analysis center, Xian University of Technology, BOX
759#, No.5Jinhua South road, Xi an 710048, China
2 Material science and engineering school, X'an University of Technology, Xi an 710048, China
3 Xi'an Aeronautical polytechnic Institute, No.48 people's west Road, Yan Liang District, Xi'an,
710089, China
Volume: 586
Monograph title: Advanced Materials and Information Technology Processing II
Issue date: 2012
Pages: 24-29
Language: English
ISSN: 10226680
ISBN-13: 9783037855232
Conference name: 2012 2nd International Conference on Advanced Materials and Information
Technology Processing, AMITP 2012
Conference location: Taipei, Taiwan
Abstract: We investigated unipolar resistance switching in CuxO thin films. We studied on the
resistive switching behavior associated with the annealing temperature of CuxO thin films and
focused on HRTEM, XPS and AFM analyses. In this paper we investigated the surface and
interface structures of CuxO films. Results show that there is a mount of oxygen content in the
CuxO thin films which is contained in Cu (II) oxides and Cu (?) oxides. When annealing
temperature increases the qualification of oxygen vacancies increase and more oxygen vacancies
is connected with top and bottom electrode. © (2012) Trans Tech Publications, Switzerland.
Controlled terms: Annealing - Information technology - Interfaces (materials) Oxygen vacancies - Switching systems - Thin films - X ray photoelectron spectroscopy
Uncontrolled terms: AFM - Annealing temperatures - Bottom electrodes - HRTEM
- Oxygen content - Resistance switching - Resistive switching - Resistive switching
behaviors - Surface and interface structures
Classification code: 903 Information Science - 801 Chemistry - 718 Telephone Systems
and Related Technologies; Line Communications - 717 Optical Communication - 951
Materials Science - 716 Telecommunication; Radar, Radio and Television - 544.1 Copper
- 537.1 Heat Treatment Processes - 482 Mineralogy - 714.2 Semiconductor Devices and
Integrated Circuits
Database: Compendex
217.
Title: High-resolution transmission electron microscopy study on bipolar resistive switching
behavior in TiO2 thin films
Authors: Li, Ying1 ; Zhao, Gaoyang2 ; Zhou, Xiaofei2 ; Pan, Lining2 ; Ren, Yang2
Author affiliation: 1 Advanced Material Analysis Center, Xi'An University of Technology, Box
759, No. 5, Jinhua South Road, Xi'an, Shaanxi 710048, China
2 Material Science and Engineering School, Xi'An University of Technology, Xi'an, Shaanxi
710048, China
Source title: Materials Science in Semiconductor Processing
Abbreviated source title: Mater Sci Semicond Process
Volume: 15
Issue: 1
Pages: 37-40
Language: English
ISSN: 13698001
Abstract: We fabricated TiO2 thin films the by sol-gel process. Successful I-V curves can be
obtained in the Cu/TiO2/ATO structure device in which TiO2 thin film was calcined at 300°C. The
bipolar resistive switching behavior was observed and the ratio of Roff/Ron can be increased to
104. The switching voltage changes from 4.8 to 3.5 V when the current compliance drops from 10
to 0.1 mA. We also investigated the microstructure by HRTEM technology. © 2011 Elsevier Ltd.
All rights reserved.
Main heading: Titanium dioxide
Controlled terms: Calcination - Sol-gel process - Sol-gels - Switching systems Thin films - Transmission electron microscopy
Uncontrolled terms: HRTEM - I - V curve - Resistive switching - Resistive switching
behaviors - Switching voltages - TiO
Classification code: 813.1 Coating Techniques - 804.2 Inorganic Compounds - 804
Chemical Products Generally - 802.3 Chemical Operations - 741.3 Optical Devices and
Systems - 718 Telephone Systems and Related Technologies; Line Communications - 717
Optical Communication - 716 Telecommunication; Radar, Radio and Television - 714.2
Semiconductor Devices and Integrated Circuits
DOI: 10.1016/j.mssp.2011.07.001
Database: Compendex
218.
Title: Application of direct orthogonal signal correction algorithm in multi-component alkane
quantitative analysis
Authors: Li, Yu-Jun1, 2 ; Tang, Xiao-Jun2 ; Liu, Jun-Hua2
Author affiliation: 1 Faculty of Automation and Information Engineering, Xi'an University of
2 School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author: Li, Y.-J. ([email protected])
Source title: Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Abbreviated source title: Guang Pu Xue Yu Guang Pu Fen Xi
Volume: 32
Issue: 4
Pages: 1038-1042
Language: Chinese
ISSN: 10000593
CODEN: GYGFED
Abstract: According to the baseline departure of multi-component alkane gas mixture spectra,
direct orthogonal signal correction (DOSC) algorithm was proposed to pretreat the infrared spectra
data. Fourier transform infrared (FTIR) spectrometer was used to sample 936 spectra data of seven
components gas mixture, including methane, ethane, propane, iso-butane, n-butane, iso-pentane
and n-pentane gases. The concentration of each component ranges from 0.01% to 0.1%, 0.01% to
0.1%, 0.01% to 0.15%, 0.0% to 0.1%, 0.0% to 0.1%, 0.0% to 0.05%, and 0.0% to 0.05%,
respectively. For analyzing intuitively, partial least square regression (PLSR) was introduced to
build the component gas quantitative analysis model. In experiment, DOSC method was compared
with first derivative algorithm (FDA) and second derivative algorithm (SDA). In order to get the
optimal model, ergodic optimization method was used to select the optimal parameters of the
model, i.e. the step of the derivative algorithm, the number of the primary component of the PLSR
and the number of orthogonal components of the DOSC algorithm. The experiment results show
that DOSC algorithm has the better effect in the field of infrared spectra data pretreating. The
average mean relative error (MRE) of the component gas analysis models is 16.58%, which
declined by 66.80% from the average MRE before data pretreating 49.93%. Compared with DA,
the average MRE declined by 51.51% from 34.19% after pretreated by FDA, and declined by
56.30% from 37.94% after pretreated by SDA. So DOSC method is feasible to pretreat the IR
spectra data, and has definite practical and investigation value.
Controlled terms: Butane - Chemical analysis - Ethane - Experiments - Fourier
transform infrared spectroscopy - Gas mixtures - Methane - Propane Spectroscopy
Uncontrolled terms: Baseline departure - Ergodics - First derivative - Fourier
transform infrared spectrometer - Infrared spectrum - IR spectrum - Isobutanes Mean relative error - Multicomponents - n-Butane - N-pentane - Optimal model
- Optimal parameter - Optimization method - Orthogonal components - Orthogonal
signal correction - Partial least square regression - Quantitative analysis model Second derivatives
Classification code: 921 Mathematics - 901.3 Engineering Research - 804.1 Organic
Compounds - 804 Chemical Products Generally - 801 Chemistry - 723 Computer
Software, Data Handling and Applications - 451.1 Air Pollution Sources
DOI: 10.3964/j.issn.1000-0593(2012)04-1038-05
Database: Compendex
219.
Title: Sediment flow behavior in agro-watersheds of the purple soil region in China under
different storm types and spatial scales
Authors: Li, Zhan-Bin1, 2 ; Li, Peng2, 3 ; Han, Jian-Gang1, 3 ; Li, Mian2, 4
Author affiliation: 1 Institute of Soil and Water Conservation, CAS and MWR, Yangling,
Shaanxi 712100, China
2 Xi'an University of Technology, Xi'an, Shaanxi 710048, China
3 Northwest Sci-tec University of Agriculture and Forestry, Yangling, Shaanxi 712100, China
4 Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission,
Zhengzhou, Henan 450003, China
Corresponding author: Li, Z.-B. ([email protected])
Source title: Soil and Tillage Research
Abbreviated source title: Soil Tillage Res.
Volume: 105
Issue: 2
Pages: 285-291
Language: English
ISSN: 01671987
CODEN: SOTRD5
Abstract: Bedload sediment is not only a major pollutant, but can also act as a transporter of
pollutants. Sediment flow behavior often reflects the characteristics of a watershed, such as land
use and management. To clarify the behavior of sediment flow under different spatial scales and
storm types in the Chinese purple soil area, the sediment flow behavior in three small
agro-watersheds with different catchment areas, physical characteristics and land use types was
investigated during natural rainfall events from 1999 to 2000. The results showed that there were
three types of sediment hydrographs, waveform or linear with a low sediment concentration
(1.13±0.58gl-1), logarithmic decrease (3.41±4.13gl-1), and compound linear and logarithmic
decrease (9.58±10.90gl-1). During PP-type rainfall events (high-intensity rainfall occurred during
the prophase of the rainfall process) and ML-type rainfall events (high intensity rainfall occurred
during the middle of the rainfall event), the waveform or linear type sediment hydrographs or the
logarithmic decrease type hydrographs were generated in each of the three agro-watersheds.
However, sediment hydrographs produced by IM-type rainfall events (discontinuous rainfall with
obvious segments) depended on the spatial scale of the watershed. As the spatial scale decreased,
the hydrographs were transformed from the logarithmic decrease type to the compound type. In
addition, it was found that the S=aQb model could effectively simulate the sediment hydrologic
process of a single rainfall event. The information provided in this study will help evaluate and
prevent soil and water loss and non-point source pollution in the purple soil region. © 2009.
Main heading: Sediments
Controlled terms: Catchments - Flow fields - Land use - Landforms - Pollution
- Rain - Sedimentology - Soils - Storms - Watersheds
Uncontrolled terms: Agro-watershed - Bedload sediments - Catchment area - Flow
behaviors - High intensity rainfall - Hydrographs - Hydrologic process - Land use
type - Linear types - Non-point source pollution
- Physical characteristics Rainfall event - Sediment concentration - Soil and water loss - Spatial scale - Wave
forms
Classification code: 631.1 Fluid Flow, General - 483.1 Soils and Soil Mechanics - 483
Soil Mechanics and Foundations - 481.1 Geology - 454.2 Environmental Impact and
Protection - 444.1 Surface Water - 444 Water Resources - 443.3 Precipitation - 403
Urban and Regional Planning and Development
DOI: 10.1016/j.still.2009.04.002
Database: Compendex
220.
Title: Experiment on flow pattern in labyrinth emitter
Authors: Li, Zhiqin1, 2 ; Ma, Jing2
2 College of Water Resources and Engineering, Taiyuan University of Technology, Taiyuan
030024, China
Corresponding author: Li, Z. ([email protected])
Engineering
Volume: 28
Issue: 1
Pages: 82-86
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: In order to analyze the flow pattern and the critical Reynolds number of flow pattern
conversion to each other in the runner of the labyrinth emitter, the tests of the water flow for the
model with five different sizes of runner were conducted, the phenomena of water flow were
observed and analyzed, the relationship between the head loss and average velocity in the
labyrinth runner was analyzed, and the relationship between friction loss and average velocity
along the straight runner that with the same section size as the labyrinth runner was analyzed. The
results show that: The labyrinth path has great disturbance on the flow, making the laminar flow
change into the transition region when Reynolds number is 41.5; the laminar flow may occur in
the labyrinth units at the entrance section which accounts for 10%-12% of the whole labyrinth
units. as a whole, the flow pattern can be regarded as turbulence or transition region; unlike the
classical Reynolds test, the head loss in the labyrinth path is proportional to the 2.0-2.5th power of
average velocity of section; the flow pattern index of labyrinth emitter can be 0.4-0.5; and the
critical Reynolds number of flow state conversion between transition region and the turbulence
ranges from 87.5 to 125.0 in the test.
Main heading: Flow patterns
Controlled terms: Flow of water - Hydraulics - Laminar flow - Losses - Reynolds
number - Turbulence
Uncontrolled terms: Average velocity - Critical Reynolds number - Different sizes Emitter - Flow state - Friction loss - Head loss - Labyrinth channel - Pattern
index - Reynolds
- Section size - Transition regions - Water flows
Classification code: 631.1 Fluid Flow, General - 631.1.1 Liquid Dynamics - 632.1
Hydraulics - 911.2 Industrial Economics
DOI: 10.3969/j.issn.1002-6819.2012.01.016
Database: Compendex
221.
Title: Image fusion using higher order singular value decomposition
Authors: Liang, Junli1 ; He, Yang1 ; Liu, Ding1 ; Zeng, Xianju2
Author affiliation: 1 School of Automation and Information Engineering, Xi'An University of
2 College of Management, Shenzhen University, Shenzhen 518060, China
Corresponding author: Liang, J. ([email protected])
Source title: IEEE Transactions on Image Processing
Abbreviated source title: IEEE Trans Image Process
Volume: 21
Issue: 5
Pages: 2898-2909
Language: English
ISSN: 10577149
CODEN: IIPRE4
Abstract: A novel higher order singular value decomposition (HOSVD)-based image fusion
algorithm is proposed. The key points are given as follows: 1) Since image fusion depends on
local information of source images, the proposed algorithm picks out informative image patches of
source images to constitute the fused image by processing the divided subtensors rather than the
whole tensor; 2) the sum of absolute values of the coefficients (SAVC) from HOSVD of
subtensors is employed for activity-level measurement to evaluate the quality of the related image
patch; and 3) a novel sigmoid-function-like coefficient-combining scheme is applied to construct
the fused result. Experimental results show that the proposed algorithm is an alternative image
fusion approach. © 1992-2012 IEEE.
Uncontrolled terms: Absolute values - Coefficient-combining strategy - Fused images Higher order singular value decomposition - Image fusion algorithms - Image fusion
approach - Image patches - Keypoints - Local information - Sigmoid function
Source images
Classification code: 723 Computer Software, Data Handling and Applications - 723.2 Data
Processing and Image Processing - 921 Mathematics
DOI: 10.1109/TIP.2012.2183140
Database: Compendex
222.
Title: Design of on-line monitoring system for transformer oil chromatogram and its data
analysis
Authors: Liang, Li1 ; Wang, Ning1 ; Ma, Xiaochang1 ; Liu, Zhen2
2 Xi'an Heavy Machinery Research Institute, Xi'an, China
Corresponding author: Liang, L. ([email protected])
Volume: 462
Monograph title: Material Science and Engineering Technology
Issue date: 2012
Pages: 281-286
Language: English
ISSN: 10226680
ISBN-13: 9783037853610
Conference name: 2011 International Conference on Material Science and Engineering
Technology, ICMSET 2011
Sponsor: Int. Assoc. Comput. Sci. Inf. Technol.
Abstract: On-line monitoring system of transformer oil chromatogram works in laboratory.
Using the basic principles of gas chromatography (GC) of the broad spectrum, the system
provides online-testing of dissolving gases from oil with a single gas chromatographic column and
sensors with high sensitivity. The single-chip is used to collect the data and control transformers.
The main controlling computer realizes the function of analyzing and managing the collected data,
by which transformer fault can be judged. © (2012) Trans Tech Publications, Switzerland.
Main heading: Monitoring
Controlled terms: Chromatographic analysis - Engineering technology - Gas
chromatography - Materials science - Oil filled transformers - Voltage measurement
Uncontrolled terms: Basic principles - Broad spectrum - Chromatographic column Controlling computers - Gas chromatogram - Gas chromatographic column - High
sensitivity - ITS data - Monitoring system - On-line monitoring system Single-chip - Transformer faults
Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942.2 Electric
Variables Measurements - 942 Electric and Electronic Measuring Instruments - 951
Materials Science - 941 Acoustical and Optical Measuring Instruments - 901 Engineering
Profession - 801 Chemistry - 704.2 Electric Equipment - 902 Engineering Graphics;
Engineering Standards; Patents
Database: Compendex
223.
Title: Fabrication of CuW pseudo alloy by W-CuO nanopowders
Authors: Liang, Shuhua1 ; Wang, Xianhui1 ; Wang, Lingling1 ; Cao, Weichan1 ; Fang,
Zhikang1
Technology, 5 South Jinhua Road, Xi'an, Shaanxi 710048, China
Corresponding author: Liang, S. ([email protected])
Source title: Journal of Alloys and Compounds
Abbreviated source title: J Alloys Compd
Volume: 516
Issue date: March 5, 2012
Pages: 161-166
Language: English
ISSN: 09258388
CODEN: JALCEU
Abstract: CuW pseudo alloy was fabricated with W-CuO nanopowders by sintering and
infiltration. The microstructure and phase constituents of the CuW pseudo alloy prepared were
characterized by a scanning electron microscope, X-ray diffractometer, and the arc erosion
behavior was also evaluated by arcing test. The CuO powders, instead of the induced copper
powders, were introduced into W nanopowders. CuW pseudo alloy with uniform structures of Cu
and W phases was obtained when 11 wt.% CuO powders were introduced into W nanopowders. In
comparison to the conventional CuW pseudo alloy, the sizes of W skeleton and the infiltrated Cu
phase were reduced remarkably and both the hardness and electrical conductivity were increased.
The arc erosion resistance was increased due to the split characteristic of the cathode spot for the
CuW pseudo alloy prepared by W-CuO nanopowders. The appropriate addition of induced copper
can improve the distribution of Cu and W phases, and promote the subsequent infiltration of the
molten Cu due to pre-wetting the surface of W skeleton. © 2011 Elsevier B.V. All rights reserved.
Main heading: Tungsten
Controlled terms: Alloys - Copper - Copper powder - Electric conductivity Erosion - Infiltration - Musculoskeletal system - Nanostructured materials Powders - Scanning electron microscopy - Seepage - Sintering
Uncontrolled terms: Arc erosion - Arcing - Cathode spot - Electrical conductivity Nano powders - Phase constituent - Pre-wetting - Properties - Scanning Electron
Microscope - Skeleton - Uniform structure - X ray diffractometers
Classification code: 804 Chemical Products Generally - 536.1 Powder Metallurgy
Operations - 543.5 Tungsten and Alloys - 544.1 Copper - 701.1 Electricity: Basic
Concepts and Phenomena - 741.1 Light/Optics - 761 Nanotechnology - 536 Powder
Metallurgy - 483.1 Soils and Soil Mechanics - 483 Soil Mechanics and Foundations 461.3 Biomechanics, Bionics and Biomimetics - 441 Dams and Reservoirs; Hydro
Development - 407 Maritime and Port Structures; Rivers and Other Waterways - 531.1
Metallurgy
DOI: 10.1016/j.jallcom.2011.12.018
Database: Compendex
224.
Title: Online T-S model identification algorithm based on adaptive overlap coefficient and its
application
Authors: Liang, Yan-Ming1 ; Liu, Ding1 ; Wu, Guang-Yu1
Corresponding author: Liang, Y.-M. ([email protected])
Source title: Kongzhi yu Juece/Control and Decision
Abbreviated source title: Kongzhi yu Juece Control Decis
Volume: 27
Issue: 9
Pages: 1425-1428+1432
Language: Chinese
ISSN: 10010920
CODEN: KYJUEF
Publisher: Northeast University, P.O. Box 125, Shenyang, 110005, China
Abstract: To more reasonably partition fuzzy spaces during online identification of T-S model, a
calculation method on overlap coefficient between two fuzzy spaces is proposed. In this method,
the overlap coefficient can be derived by the centre distance between two contiguous clusters. In
addition, an online T-S model identification algorithm which has higher identification accuracy
can be obtained through the integration of this method, least square (LS) algorithm and recursive
least square (RLS) algorithm. Based on the data of thermal field from a single crystal furnace, the
thermal field model is on-line identified by this identification algorithm. Simulation results show
that the single crystal furnace thermal field model identified by this method has higher precision.
Controlled terms: Furnaces - Least squares approximations - Single crystals Thermoelectricity
Uncontrolled terms: Adaptive overlap coefficient - Cluster - Least Square - On-line
identification - T S models - Thermal field
Classification code: 532 Metallurgical Furnaces - 615.4 Thermoelectric Energy - 723
Computer Software, Data Handling and Applications - 921 Mathematics - 921.6 Numerical
Methods - 933.1 Crystalline Solids
Database: Compendex
225.
Title: A T-S fuzzy model with recurrent rule and its identification method
Authors: Liang, Yanming1 ; Liu, Ding1
Corresponding author: Liu, D.
Source title: Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
Abbreviated source title: Hsi An Chiao Tung Ta Hsueh
Volume: 46
Issue: 8
Pages: 54-58
Language: Chinese
ISSN: 0253987X
CODEN: HCTPDW
Publisher: Xi'an Jiaotong University, West Xian Ning Road 28, Xi'an, 710049, China
Abstract: A dynamic T-S fuzzy model with a recurrent rule structure(TFM-RR) and its
identification are proposed to improve the problem that conventional T-S fuzzy models can not
exactly describe the time-varying characteristics of systems. A weighted feedback component that
bases on the traditional T-S fuzzy model, is introduced in TFM-RR, and produces a new firing
strength of the current rule from the weighted sum of the current firing strength and the previous
firing strength. Thus, the firing strength of a rule varies dynamically and recursively, and
effectively describes the dynamic process of the system. In order to make TFM-RR has fewer
rules and good generalization capabilities, parameters of the antecedent of a rule are achieved
using a fuzzy clustering algorithm that bases on the firing strength of the rule, while parameters of
the consequent and the recursion are achieved by an integrated identification method that
combines the support vector machine and a particle swarm optimization algorithm. Simulation
results and comparisons with the hybrid clustering method on Box-Jenkins gas furnace show that
the TFM-RR and its identification algorithm significantly reduce the mean variance by 1.2%, and
show a better dynamic description ability.
Main heading: Identification (control systems)
Controlled terms: Algorithms - Fuzzy clustering - Particle swarm optimization (PSO) Support vector machines
Uncontrolled terms: Box-Jenkins - Dynamic process - Firing strength Generalization capability - Hybrid clustering - Identification algorithms - Identification
method - Integrated identification method - Mean variance - Particle swarm
optimization algorithm - Recurrent rule - Recursions - T S models - T-S fuzzy
models - Time-varying characteristics - Weighted Sum
Classification code: 723 Computer Software, Data Handling and Applications - 731.1
Control Systems
Database: Compendex
226.
Title: Band gap engineering of silicene zigzag nanoribbons with perpendicular electric fields: A
theoretical study
Authors: Liang, Yunye1 ; Wang, Vei1, 2 ; Mizuseki, Hiroshi1 ; Kawazoe, Yoshiyuki1
Author affiliation: 1 Institute for Materials Research, Tohoku University, Aobaku, Sendai
980-8577, Japan
2 Department of Applied Physics, Xian University of Technology, Xian 710054, China
Corresponding author: Liang, Y. ([email protected])
Source title: Journal of Physics Condensed Matter
Abbreviated source title: J Phys Condens Matter
Volume: 24
Issue: 45
Language: English
ISSN: 09538984
E-ISSN: 1361648X
CODEN: JCOMEL
United Kingdom
Abstract: The electronic properties of silicene zigzag nanoribbons with the presence of
perpendicular fields are studied by using first-principles calculations and the generalized nearest
neighboring approximation method. In contrast to the planar graphene, in silicene the Si atoms are
not coplanar. As a result, by applying perpendicular fields to the two-dimensional silicene sheet,
the on-site energy can be modulated and the band gap at the Dirac point is open. The buckled
structure also creates a height difference between the two edges of the silicene zigzag nanoribbons.
We find that the external fields can modulate the energies of spin-polarized edge states and their
corresponding band gaps. Due to the polarization in the plane, the modulation effect is width
dependent and becomes much more significant for narrow ribbons. © 2012 IOP Publishing Ltd.
Main heading: Energy gap
Controlled terms: Approximation theory - Calculations - Electronic properties Graphene - Nanostructures - Superconducting films
Uncontrolled terms: Approximation methods - Band gap engineering - Dirac point Edge state - External fields - First-principles calculation - Modulation effects Nanoribbons - On-site energy - Planar graphene - Si atoms - Spin-polarized Theoretical study
Classification code: 931.3 Atomic and Molecular Physics - 921.6 Numerical Methods 921 Mathematics - 804 Chemical Products Generally - 933 Solid State Physics - 761
Nanotechnology - 721 Computer Circuits and Logic Elements - 708.3 Superconducting
Materials - 701.1 Electricity: Basic Concepts and Phenomena - 723 Computer Software,
Data Handling and Applications
DOI: 10.1088/0953-8984/24/45/455302
Database: Compendex
227.
Title: Effects of different scroll buttress on the flow field and performances of turbine
Authors: Liao, Weili1 ; Zhao, Yaping1 ; Li, Zhihua2 ; Luo, Xingqi1
2 Xi'an Thermal Power Research Institute Co. Ltd., Xi'an 710032, China
Corresponding author: Liao, W. ([email protected])
Volume: 31
Issue: 2
Pages: 210-215+221
Language: Chinese
ISSN: 10031243
Abstract: A 3-D numerical simulation of steady flow in the full scroll passage of a Kaplan
turbine was conducted to study the effects of four different types of scroll buttress. The results
show that the number and shape of scroll buttresses produce a great effect on the hydraulic
parameters and turbine performances, particularly on the uniformity of vertical inflow profile at
the runner inlet where the flow rate in the vane spacing increases in upward direction. This effect
can extend to the flow rate in the spacing of stay vanes. The buttress tail that twists toward the
worm inlet, could effectively guide the flow toward the worm and distribute the flow more evenly
along the circumference. Thus through a better design of scroll buttresses the efficiency and
stability of hydraulic turbine is improved and the life of turbine will be extended.
Main heading: Hydraulic motors
Controlled terms: Efficiency - Flow rate - Inlet flow - Turbines
Uncontrolled terms: 3-D numerical simulation - Buttress - Flow - Hydraulic loss Hydraulic parameters - Inflow profile - Turbine performance
Classification code: 612.3 Gas Turbines and Engines - 631 Fluid Flow - 631.1 Fluid
Flow, General - 632.2 Hydraulic Equipment and Machinery - 913.1 Production
Engineering
Database: Compendex
228.
Title: A competency test model of marketing personnel in equipment manufacturing industry Case study of Xi'an equipment manufacturing industry
Authors: Lili, Hu1 ; Chen, Shen1
Author affiliation: 1 Economic and Administration Department, Xi'an University of
Technology, Yan xiang Road No. 58, Xi'an, Shaanxi, China
Corresponding author: Lili, H. ([email protected])
Source title: 8th International Conference on Service Systems and Service Management Proceedings of ICSSSM'11
Abbreviated source title: Int. Conf. Serv. Syst. Serv. Manage. - Proc. ICSSSM
Monograph title: 8th International Conference on Service Systems and Service Management Proceedings of ICSSSM'11
Issue date: 2011
Language: English
ISBN-13: 9781612843094
Conference name: 8th International Conference on Service Systems and Service Management,
ICSSSM'11
Conference location: Tianjin, China
Sponsor: IEEE Systems, Man and Cybernetics Society; Tsinghua University, Research Center
for Contemporary Management; The Chinese University of Hong Kong; Nankai University
United States
Abstract: In this paper, we use the methods of analytic hierarchy process to determine the index
weight, basing on the building of competency test indexes of marketing personnel, and
establishing competency test model. Taking equipment manufacturing industry in Xi'an as an
example, the author test the level of the competency, which provides a competency evaluation
ideas and methods for marketing personnel in Xi'an equipment manufacturing industry. © 2011
IEEE.
Main heading: Equipment
Controlled terms: Human resource management - Marketing
Uncontrolled terms: Competency evaluation - Competency test - Equipment
manufacturing - Equipment Manufacturing Industry - Index weight - Test models
Classification code: 901 Engineering Profession - 911.4 Marketing - 912.4 Personnel
DOI: 10.1109/ICSSSM.2011.5959374
Database: Compendex
229.
Title: Three-dimensional observation of defects in nitrogen-doped 6H-SiC crystals using a laser
scanning confocal microscope
Authors: Lin, Shenghuang1 ; Chen, Zhiming1 ; Liu, Sujuan1 ; Yang, Ying1 ; Feng, Xianfeng1 ;
Ba, Yintu1 ; Yang, Mingchao1 ; Yang, Chen1
Xi'an 710048, China
Corresponding author: Lin, S. ([email protected])
Source title: Journal of Materials Science
Abbreviated source title: J Mater Sci
Volume: 47
Issue: 7
Pages: 3429-3434
Language: English
ISSN: 00222461
E-ISSN: 15734803
CODEN: JMTSAS
Abstract: Different defective structures of nitrogen-doped 6H-SiC single crystals were examined
using a combination of laser scanning confocal microscopy (LSCM), scanning electron
microscope (SEM) and KOH-K2CO3 etching. The form, depth and size of the defects in etched
silicon carbide (SiC) crystals were observed by LSCM. Using these 3D LSCM images, defective
structures varying in the growth direction were observed from a side view for the first time. To
study the size, depth and form of defect etch pits in detail, we observed the defect etch pits
configuration in some volumes through taking 3D LSCM pictures. Information on defects
obtained using this approach will be very helpful for investigation of MP and SD formation
mechanism in conducting SiC substrates, as well as the observation of polytype stability in
nitrogen-doped SiC crystals. © 2011 Springer Science+Business Media, LLC.
Controlled terms: Confocal microscopy - Crystal defects - Nitrogen - Scanning
electron microscopy - Silicon carbide - Single crystals
Uncontrolled terms: Defective structures - Etch pits - Formation mechanism Growth directions - Laser scanning confocal microscopes - Laser scanning confocal
microscopy - Nitrogen-doped - Polytype stability - Scanning electron microscopes SiC substrates - Side view - Three-dimensional observations
Classification code: 933.1.1 Crystal Lattice - 933.1 Crystalline Solids - 902.1
Engineering Graphics - 804.2 Inorganic Compounds - 804 Chemical Products Generally
- 744.9 Laser Applications - 741.1 Light/Optics
DOI: 10.1007/s10853-011-6190-4
Database: Compendex
230.
Title: Investigation of micropipes in 6HSiC by Raman scattering
Authors: Lin, Shenghuang1 ; Chen, Zhiming1 ; Li, Lianbi2 ; Ba, Yintu1 ; Liu, Sujuan1 ; Yang,
Mingchao1
Xi'an 710048, China
2 School of Science, Xi'An Polytechnic University, Xi'an 710048, China
Corresponding author: Chen, Z. ([email protected])
Source title: Physica B: Condensed Matter
Abbreviated source title: Phys B Condens Matter
Volume: 407
Issue: 4
Pages: 670-673
Language: English
ISSN: 09214526
CODEN: PHYBE3
Abstract: The spectra of 6HSiC crystals including micropipes have been examined for the Si
face using Raman scattering. The first-order Raman features reveal that the intensity of the
transverse optical phonon band centered at ∼796 cm -1 is sensitive to the micropipes. And the
second-order Raman features of the micropipes in bulk 6HSiC are well-defined using the selection
rules for second-order scattering in wurtzite structure. It is found that there are some second-order
peaks missing for the micropipe-including sample, which may be induced by the reduction of the
incident laser intensity at around the micropipe, especially the uneven surface in the inner wall of
the micropipe. These features might also be employed to characterize other structural defects such
as screw-dislocations and threading edge dislocations. © 2011 Elsevier B.V. All rights reserved.
Main heading: Edge dislocations
Controlled terms: Feature extraction - Raman scattering - Scattering - Screw
dislocations - Silicon carbide - Zinc sulfide
Uncontrolled terms: First-order - Incident laser - Inner walls - Micropipes Raman feature - Second order scattering - Second orders - Selection Rules - SiC Structural defect - Threading edge dislocation - Transverse optical phonons - Uneven
surfaces - Wurtzite structure
Classification code: 741.1 Light/Optics - 804.2 Inorganic Compounds - 933.1.1 Crystal
Lattice
DOI: 10.1016/j.physb.2011.12.001
Database: Compendex
231.
Title: Stacking faults at the boundary between 15R- and 4H-polytype in SiC
Authors: Lin, Shenghuang1 ; Chen, Zhiming1 ; Ba, Yintu1 ; Yang, Mingchao1 ; Li, Lianbi2
Xi'an 710048, China
2 School of Science, Xi'An Polytechnic University, Xi'an 710043, China
Source title: Materials Letters
Abbreviated source title: Mater Lett
Volume: 81
Pages: 27-30
Language: English
ISSN: 0167577X
CODEN: MLETDJ
Abstract: The availability of large high-quality silicon carbide (SiC) single crystals is a key issue
in the development of the full potential of SiC-based device technology. In this letter, 4H-SiC
crystals were grown on the (0001¯) substrates with 4°off-orientation toward <11¯00>. It had been
found that there existed high density stacking faults (SFs) at the boundary between the 15R- and
4H-polytype. The HR-TEM observation revealed that this kind of SFs was of the 3C-SiC polytype.
Meanwhile, the Raman spectra from these SFs suggested that the peaks at ∼ 782 and ∼ 796 cm-1
were both sensitive to SFs. Especially, the band at ∼ 782 cm-1 can be the feature peak for
identifying SFs with 15R inclusion. © 2012 Elsevier B.V. All rights reserved.
Main heading: Silicon carbide
Controlled terms: Crystal orientation - Defects - Electron microscopy Semiconductor materials
Uncontrolled terms: Device technologies - High density - High quality - Polytypes
- Raman
Classification code: 423 Non Mechanical Properties and Tests of Building Materials - 712.1
Semiconducting Materials - 804.2 Inorganic Compounds - 933 Solid State Physics 933.1.1 Crystal Lattice - 951 Materials Science
DOI: 10.1016/j.matlet.2012.05.004
Database: Compendex
232.
Title: Effect of impurities on the raman scattering of 6H-SiC crystals
Authors: Lin, Shenghuang1 ; Chen, Zhiming1 ; Li, Lianbi2 ; Yang, Chen1
2 School of Science, Xi'An Polytechnic University, Xi'an, 710043, China
Source title: Materials Research
Abbreviated source title: Mater. Res.
Volume: 15
Issue: 6
Issue date: November-December 2012
Pages: 833-836
Language: English
ISSN: 15161439
Publisher: Universidade Federal de Sao Carlos, C.P. 676, Sao Carlos SP, 13565-905, Brazil
Abstract: Raman spectroscopy was applied to different-impurities-doped 6H-SiC crystals. It had
been found that the first-order Raman spectra of N-, Al- and B-doped 6H-SiC were shifted to
higher frequency when comparing with undoped samples. However, the first-order Raman spectra
of V-doped sample was shifted to lower frequency, revealing that there existed low free carrier
concentration, which might be induced by the deep energy level effect of V impurity. Meanwhile,
the second-order Raman spectra are independent of polytype and impurity type. © 2012.
Main heading: Crystal impurities
Controlled terms: Impurities - Raman scattering - Raman spectroscopy - Silicon
carbide
Uncontrolled terms: 6H-SiC - Deep energy levels - First-order - Free carrier
concentration - Higher frequencies - Lower frequencies - Polytypes - Second orders
Classification code: 741.1 Light/Optics - 804.2 Inorganic Compounds - 933.1.1 Crystal
Lattice - 951 Materials Science
DOI: 10.1590/S1516-14392012005000108
Database: Compendex
233.
Title: Tensile properties of Mo-Si alloys at room and elevated temperature
Authors: Lin, Xiaohui1, 2 ; Zhang, Gunjun1 ; Zhang, Nana1 ; Chen, Dichun1 ; Yan, Fuxue1
2 Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
Corresponding author: Lin, X. ([email protected])
Source title: Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title: Xiyou Jinshu Cailiao Yu Gongcheng
Volume: 41
Issue: 6
Pages: 1021-1025
Language: Chinese
ISSN: 1002185X
CODEN: XJCGEA
Publisher: Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract: The Mo-Si alloy sheets with different silicon contents were fabricated by
powder-metallurgical processing, and static tensile tests were performed at 25, 300, 800 and
1200°C, respectively. The effect of test temperatures on mechanical properties, facture mode and
microstructure of Mo-Si alloys were studied. The results indicate that with increasing of tensile
test temperature, the strength of the pure Mo and Mo-Si alloy sheets decrease dramatically, the
elongation shows an increasing trend at lower 300°C and then decreasing at higher temperatures.
The fracture mode of molybdenum alloy sheets transform from transgranular cleavage fracture at
room temperature to dimple fracture at 300 and 800°C, and then to intergranular fracture at
1200°C. The strengthening mechanism analysis results show that the strengthening of Mo-Si alloy
originates from particle dispersion strengthening and solid solution strengthening at room
temperature. While, at elevated temperature the role of solid solution strengthening weakens
significantly and the particle dispersion strengthening and grain coarsening are main strengthening
modes. Copyright © 2012, Northwest Institute for Nonferrous Metal Research. Published by
Elsevier BV. All rights reserved.
Main heading: Molybdenum alloys
Controlled terms: Brittle fracture - Dispersions - Fractography - Fracture mechanics
- Mechanical properties - Molybdenum - Silicon - Silicon alloys - Solid solutions
- Tensile strength
- Tensile testing - Textures
Uncontrolled terms: Alloy sheets - Cleavage fracture - Dimple fracture - Elevated
temperature - Fracture mode - Grain coarsening - Intergranular fracture - Particle
dispersion - Room temperature - Silicon contents - Solid solution strengthening Static tensile tests - Strengthening mechanisms - Tensile tests - Test temperatures Transgranular
Strength of Building Materials : Test Methods - 543.3 Molybdenum and Alloys - 549.3
Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 933 Solid State
Physics - 951 Materials Science
Database: Compendex
234.
Title: Decision making on production mode selection for manufacturing enterprises under two
types of market structure
Authors: Liu, Chen-Guang1 ; Bai, Yu-Fang1 ; Li, Wen-Juan1 ; Lian, Jie1 ; Yin, Yong1, 2
Xi'an 710048, China
2 Department of Economics and Business Management, Yamagata University, Yamagata
990-8560, Japan
Corresponding author: Liu, C.-G.
Volume: 32
Issue: 1
Pages: 49-59
Language: Chinese
ISSN: 10006788
CODEN: XGLSE2
Abstract: In the market demand characterized by increasingly diverse product variety and
shorter delivery time, it has become an urgent issue for many manufacturing enterprises to decide
whether to implement mass production or mass customization. The present paper proposed
different profit models under two types of market structure of monopoly and duopoly. To solve
these models, backward induction method was employed, which is evaluated as an effiective
approach in settling the subgame-perfect Nash equilibrium. Then, feasible plans for production
mode selection with regard to different conditions were obtained through systematical analyses of
selecting either mass production or mass customization under monopoly, and different combined
decisions of mass production and mass customization under duopoly. The research results
contribute to providing theory and method support for manufacturing enterprises to make
decisions on production mode selection under two types of market structure of monopoly and
duopoly.
Main heading: Competition
Controlled terms: Commerce - Machine tools - Production engineering - Profitability
Uncontrolled terms: Backward induction - Decision on production mode - Delivery time
- Manufacturing enterprise - Market demand - Market structures - Mass
customization - Mass production - Nash equilibria - Product variety - Production
modes - Profit model - Research results - Systematical analysis - Theory and
methods
Classification code: 603.1 Machine Tools, General - 911.2 Industrial Economics - 913.1
Production Engineering
Database: Compendex
235.
Title: Reconfiguration of assembly systems: From conveyor assembly line to serus
Authors: Liu, Chenguang1 ; Li, Wenjuan1 ; Lian, Jie1 ; Yin, Yong1, 2
Author affiliation: 1 School of Economics and Management, Xi'An University of Technology,
Xi'an City, Shaanxi Province 710048, China
2 Department of Economics and Business Management, Yamagata University, 1-4-12
Kojirakawa-machi, Yamagata-shi 990-8560, Japan
Corresponding author: Liu, C. ([email protected])
Source title: Journal of Manufacturing Systems
Abbreviated source title: J Manuf Syst
Volume: 31
Issue: 3
Pages: 312-325
Language: English
ISSN: 02786125
CODEN: JMSYEB
Abstract: Confronted with the dynamic and complex market environments, the traditional
conveyor assembly line can no longer meet customers' demands effectively. The way of
reconfiguring conveyor assembly line to a more flexible manufacturing system has been attracting
considerable attention both in the academics and production practices. Seru system, also called
assembly cell system, is regarded as one of the most successful innovations of manufacturing
system in reconfiguring conveyor assembly line. Such a manufacturing system merges
considerable flexibility of job shops and high efficiency of conveyor assembly lines to some
extent. In this paper, we investigate the problem of how to reconfigure conveyor assembly line to
serus. A comprehensive mathematical model incorporating two issues of how many serus should
be established and how many workers should be assigned to each seru is developed. Then the
model is investigated by an industrial case and compared to Kaku's model with respect to the
selected plan. The computation results validate that the proposed model is more suitable to
analyze the reconfiguration problems from conveyor assembly line to serus. © 2012 The Society
of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
Main heading: Assembly
Controlled terms: Assembly machines - Conveyors - Flexible manufacturing systems Mathematical models
Uncontrolled terms: Assembly cells - Assembly line - Assembly systems - Job shop
- Market environment - Production practice - Reconfiguration problems - Serus
Classification code: 601.1 Mechanical Devices - 692.1 Conveyors - 913.1 Production
Engineering - 913.4.1 Flexible Manufacturing Systems - 921 Mathematics
DOI: 10.1016/j.jmsy.2012.02.003
Database: Compendex
236.
Title: The role of run-on for overland flow and the characteristics of runoff generation in the
Loess Plateau, China
Title of translation: Le rôle du ruissellement latéral dans l'écoulement de surface et les
caractéristiques de la production d'écoulement dans le plateau de Loess, en Chine
Authors: Liu, Dengfeng1, 2 ; Tian, Fuqiang2 ; Hu, Hongchang2 ; Hu, Heping2
Ecology of MOE, School of Water Resources and Hydropower, Xi'an University of Technology,
2 State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering,
Tsinghua University, Beijing, 100084, China
Corresponding author: Tian, F. ([email protected])
Source title: Hydrological Sciences Journal
Abbreviated source title: Hydrol. Sci. J.
Volume: 57
Issue: 6
Pages: 1107-1117
Language: English
ISSN: 02626667
E-ISSN: 21503435
CODEN: HSJODN
Publisher: Taylor and Francis Ltd., 4 Park Square, Milton Park, Abingdon, Oxfordshire, OX14
4RN, United Kingdom
Abstract: The Loess Plateau in China is overlain by deep and loose soil. As in other semi-arid
regions, convective precipitation produces storms, typically of short duration, relatively high
intensity and limited areal extent. Infiltration excess (Hortonian mechanism) of precipitation is
conventionally assumed to be more prominent than saturation excess (Dunne mechanism) for
storm runoff generation. This assumption is true at a point during the storm. However, the runoff
generation mechanism is altered when the runoff is conditioned by a lateral redistribution
movement of water, i.e. run-on, as the spatial scale increases. In the Loess Plateau, the effects of
run-on may be significant, because of the deep and loose surface soil layer. In this study, the role
of run-on for overland flow in the Upper Wei River basin, located in the Loess Plateau, is
evaluated by means of a simple numerical model at the hillslope scale. The results show that
almost all the Hortonian overland flow infiltrates into the soil along the flat hillslope and dry gully
before it reaches the river channel. Most of the runoff is generated from the saturated soil near the
river channel and from the subsurface. The run-on process takes much longer than the infiltration,
facilitating rainfall-runoff modelling at a daily time step. A hydrological model is employed to
investigate the characteristics of runoff generation in the Upper Wei River basin. The analysis
shows that the subsurface flow contribution to total streamflow is more than 53% from October to
March, while the overland flow contribution exceeds 72% from April to September. © 2012
Copyright 2012 IAHS Press.
Main heading: Runoff
Controlled terms: Arid regions - Infiltration - Rivers - Soils - Storms Watersheds
Uncontrolled terms: Loess Plateau - run-on - Runoff generation - scaling - Wei
river
Classification code: 443 Meteorology - 443.3 Precipitation - 444 Water Resources 444.1 Surface Water - 483.1 Soils and Soil Mechanics
DOI: 10.1080/02626667.2012.695870
Database: Compendex
237.
Title: Simulation and evaluation of ecohydrological effect of water transfers at Alagan in lower
Tarim River
Authors: Liu, Dengfeng1, 2 ; Lin, Mu3 ; Tian, Fuqiang2
Ecology of MOE, Xi'an University of Technology, Xi'an 710048, China
2 State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering,
Tsinghua University, Beijing 100084, China
3 School of Applied Mathematics, Central University of Finance and Economics, Beijing
100081, China
Corresponding author: Liu, D. ([email protected])
Volume: 518-523
Monograph title: Advances in Environmental Science and Engineering
Issue date: 2012
Pages: 4233-4240
Language: English
ISSN: 10226680
ISBN-13: 9783037854167
Conference name: 1st International Conference on Energy and Environmental Protection, ICEEP
2012
Conference location: Hohhot, China
Abstract: The riparian vegetation is highly dependent on the groundwater which is recharged by
the river in arid regions. Water is the most important limiting factor for riparian vegetation in arid
regions. From 1970s to 2000, the lower Tarim River almost dried up and the groundwater table
fell down obviously. The riparian vegetation degraded seriously due to the low groundwater table.
From 2000 to 2006, water transfers were implemented in the lower Tarim River to restore the
ecological environment. Although the observation of groundwater and vegetation was carried out
along lower Tarim River, the dynamics of the groundwater and vegetation along the cross section
of the river were unknown. Ecohydrological evolution model on Riparian Vegetation in hyper-arid
regions (ERV model) is a distributed ecohydrological model and has been validated at Yingsu in
lower Tarim River. In this paper, the ERV model is applied to analyze the ecohydrological effect
of water transfers at Alagan in lower Tarim River. At the same time, the ERV model is further
validated. The simulation result is validated by observed groundwater table and vegetation
coverage computed from remote sensing data. The result shows that the average groundwater table
at Alagan increased by 4.74m from 2000 to 2006 and the average groundwater depth reached
6.36m. The average vegetation coverage increased from 0.130 to 0.194. In order to recover the
green corridor, the further water transfers are required. The results are helpful for the
ecohydrological research and water resources management in lower Tarim River. © (2012) Trans
Controlled terms: Arid regions - Groundwater - Groundwater resources - Remote
sensing - Vegetation
Uncontrolled terms: Cross section - Ecohydrological model - Ecological environments
- Effect of water - Evolution models - Ground water table - Remote sensing data Riparian vegetation - Tarim river - Vegetation coverage - Water resources
management - Water transfers
Classification code: 443 Meteorology - 444 Water Resources - 731.1 Control Systems 821 Agricultural Equipment and Methods; Vegetation and Pest Control
Database: Compendex
238.
Title: Ecohydrological evolution model on riparian vegetation in hyperarid regions and its
validation in the lower reach of Tarim River
Authors: Liu, Dengfeng1, 2 ; Tian, Fuqiang1 ; Hu, Heping1 ; Lin, Mu3 ; Cong, Zhentao1
Author affiliation: 1 State Key Laboratory of Hydroscience and Engineering, Department of
Hydraulic Engineering, Tsinghua University, Beijing 100084, China
2 Key Laboratory of Northwest Water Resources and Environmental Ecology of MOE, Xi'an
University of Technology, Xi'an, 710048, China
3 School of Applied Mathematics, Central University of Finance and Economics, Beijing,
100081, China
Corresponding author: Tian, F. ([email protected])
Source title: Hydrological Processes
Abbreviated source title: Hydrol. Processes
Volume: 26
Issue: 13
Pages: 2049-2060
Language: English
ISSN: 08856087
E-ISSN: 10991085
CODEN: HYPRE3
Publisher: John Wiley and Sons Ltd, Southern Gate, Chichester, West Sussex, PO19 8SQ,
United Kingdom
Abstract: The evolution of the ecohydrological system driven by external climatic forcing and
internal feedbacks between vegetation and hydrology, which is more remarkable in arid and
semiarid regions, has attracted substantial research attention in recent years. To examine critically
the state-of-the-art assumptions and dynamic equations used in the evolution study of an
ecohydrological system, the rule of proceeding from simplicity to complexity should be followed.
The riparian vegetation ecohydrological system in hyperarid regions (e.g. the lower Tarim River)
can serve as a starting point given its simplicity, which has been seldom examined before in terms
of system evolution. Further, the water transfer practice from 2000 to 2006 in the lower Tarim
River serves as a valuable prototype experiment for model validation. This is because the
remarkable changes in groundwater and vegetation in the area have taken place within a shorter
period and thus can be easily observed. In the present study, the ecohydrological evolution model
on riparian vegetation (ERV model) in hyperarid regions was proposed by coupling groundwater
movement and vegetation dynamics. In the ERV model, the groundwater table serves as a critical
feedback variable that determines the vegetation dynamics (colonization and mortality) and is
determined by vegetation transpiration other than groundwater movement. The monitored
groundwater table by wells and satellite-observed vegetation coverage from the Moderate
Resolution Imaging Spectroradiometer are used for model validation. The simulation results show
the good performance of the ERV model with uncalibrated parameters. It was also calibrated
manually using a multiobjective method, and the fine-tuned parameters are close to the
uncalibrated ones, indicating the robustness of the model. The analysis shows further that the
increased evapotranspiration is substantially due to the water transfer and thus the vegetation
growth, which implies the importance of ecohydrological coupling for long-term hydrological
modelling. © 2011 John Wiley & Sons, Ltd.
Controlled terms: Arid regions - Dynamics - Feedback - Groundwater Hydrology - Vegetation - Water supply
Uncontrolled terms: Arid and semi-arid regions - Dynamic equations - Eco-hydrology Evolution models - Ground water movement - Ground water table - Hydrological
modelling - Hyperarid regions - Internal feedback - Model validation
- Moderate
resolution imaging spectroradiometer - Multiobjective method - Prototype experiment Riparian vegetation - System evolution - Tarim river - Vegetation coverage Vegetation dynamics - Vegetation growth - Water transfers
Classification code: 931.1 Mechanics - 821 Agricultural Equipment and Methods; Vegetation
and Pest Control - 731.1 Control Systems - 471 Marine Science and Oceanography 446.1 Water Supply Systems - 444 Water Resources - 443 Meteorology
DOI: 10.1002/hyp.8313
Database: Compendex
239.
Title: Embedded multi-parameter monitoring system for submersible electric pump
Authors: Liu, Fei1 ; Li, Qiang1
Corresponding author: Liu, F. ([email protected])
Volume: 503-504
Monograph title: Frontiers of Manufacturing Science and Measuring Technology II
Issue date: 2012
Pages: 1642-1646
Language: English
ISSN: 10226680
ISBN-13: 9783037854044
Conference name: 2012 2nd International Conference on Frontiers of Manufacturing Science
and Measuring Technology, ICFMM 2012
Sponsor: Control Engineering and Information Science Research Association; Int. Front. Sci.
Technol. Res. Assoc.; Trans Tech Publications; Chin-Yi University of Technology
Abstract: The multi-parameter measurement of submersible electric pump is an important part of
monitoring data underground. The system measures the temperature, pressure, leakage current and
vibration signals, which return through the power line carrier technology and data processing on
the oil well. This article also focuses on the pressure sensor temperature compensation algorithm,
using an anti-linear curve fitting to approximating, and effectively eliminates the error of silicon
pressure sensor resulting from temperature changing. The system has brought about a striking
effect in experiments of oil field. © (2012) Trans Tech Publications.
Main heading: Submersibles
Controlled terms: Curve fitting - Data processing - Manufacture - Oil fields - Oil
wells - Pressure sensors - Sensors - Temperature distribution
Uncontrolled terms: Electric pumps - Monitoring system - Multi-parameter measurement
- Multiparameters - Power line carrier - Signal - Silicon pressure sensors Striking effects - Temperature changing - Temperature compensation
- Vibration
signal
Classification code: 921.6 Numerical Methods - 801 Chemistry - 723.2 Data Processing
and Image Processing - 944.3 Pressure Measuring Instruments - 674.1 Small Marine Craft
- 537.1 Heat Treatment Processes - 512.1.1 Oil Fields - 641.1 Thermodynamics
Database: Compendex
240.
Title: Weighted mixed-norm based blind super-resolution algorithm
Authors: Liu, Gang1, 2 ; Zhao, Hong-Yi3 ; Hu, Zhen-Long4
Author affiliation: 1 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese
Academy of Sciences, Changchun 130033, China
2 School of Electronics and Information, Shanghai Dianji University, Shanghai 201306, China
3 Faculty of High Vocational Education, Xi'an University of Technology, Xi'an 710082, China
4 Zhejiang Yuexiu University of Foreign Languages, Shaoxing 312008, China
Corresponding author: Hu, Z.-L. ([email protected])
Source title: Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and
Technology Edition)
Abbreviated source title: Jilin Daxue Xuebao (Gongxueban)
Volume: 42
Issue: 4
Pages: 1054-1058
Language: Chinese
ISSN: 16715497
CODEN: JDXGAH
Publisher: Editorial Board of Jilin University, 5988 Renmin Street, Changchun, 130022, China
Abstract: Conventional Super-Resolution (SR) methods have some limitations. First, most of
existing SR algorithms can not cope with local motions and hence not suitable for most video
sequences. Second, the blurring operator is assumed to be known in advance and be a constant for
all the low-resolution images. Finally, SR noise is assumed to be either Gaussian or Laplacian. To
overcome these limitations, a general local cost function is proposed that consists of weighted
L1-and L2-norms considering the SR noise model. In this function, the weights are generated
according to the error of registration and noise distribution, and the inaccurately registered parts of
the image are penalized. Both the super-resolved images and blurring operators are estimated at
the same time. Both objective and subjective evaluations demonstrate the effectiveness of the
proposed algorithm.
Controlled terms: Data processing - Image fusion - Image registration - Optical
resolving power
Uncontrolled terms: Blind Super-resolution - Gaussians - Laplacians - Local motions
- Low resolution images - Mixed-norm - Noise distribution - Noise models Subjective evaluations - Super resolution - Video sequences
Classification code: 723 Computer Software, Data Handling and Applications - 723.2 Data
Processing and Image Processing - 741.1 Light/Optics - 921 Mathematics
Database: Compendex
241.
Title: The translation invariant wavelet-based contourlet transform for image denoising
Authors: Liu, Gang1 ; Liu, Jing2 ; Wang, Quan1 ; He, Wenjuan2
Author affiliation: 1 School of Computer Science and Technology, Xidian University, Xi'an,
China
2 Faculty of Computer Science and Engineering, Xi'an University of Technology, Xi'an, China
Corresponding author: Liu, G. ([email protected])
Source title: Journal of Multimedia
Abbreviated source title: J. Multimedia
Volume: 7
Issue: 3
Issue date: 2012
Pages: 254-261
Language: English
ISSN: 17962048
Abstract: A new method of image denoising using wavelet based contourlet transform (WBCT)
is proposed. Due to the lack of translation invariance of WBCT, image denoising by means of
WBCT would lead to Gibbs-like phenomena. In the paper, cycle spinning-based technique is
applied to develop translation invariant WBCT denoising scheme. Many simulation experiments
with images contaminated by additive white Gaussian noise demonstrate that the performance of
the proposed approach substantially surpasses that of previously wavelets methods using the cycle
spinning both visually and in terms of the PSNR values, especially for the images that include
mostly fine textures and contours. © 2012 ACADEMY PUBLISHER.
Main heading: Image denoising
Controlled terms: Image texture - Wavelet analysis - Wavelet transforms
Uncontrolled terms: Additive White Gaussian noise - Cycle-spinning - De-noising Method of images - Simulation experiments - Translation invariance - Translation
invariants - Wavelet-based contourlet transforms
Classification code: 723.2 Data Processing and Image Processing - 921.3 Mathematical
Transformations
DOI: 10.4304/jmm.7.3.254-261
Database: Compendex
242.
Title: A method for denoising based on Direction of image edge
Authors: Liu, Gang1 ; Liu, Jing2 ; Wang, Quan1 ; Li, Zhongyang1
Author affiliation: 1 School of Computer Science and Technology, Xidian University, Xi'an
710071, China
2 Faculity of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
Volume: 8
Issue: 16
Pages: 6797-6804
Language: English
ISSN: 15539105
Abstract: A novel denoising method is proposed based on Directionlet transform. The
characteristic of multidirectional framework of Directionlet transform can make the image energy
more concentrative and reduce the extent of the high frequency coefficients. In order to overcome
visible ringing effects introduced by image denoising, the image was decomposed and
transformed in multi-directions using Directionlet; Average all the denoising images processed by
means of the different generator matrices. Results of our experiments show that the proposed
denoising algorithm can preserve uniformity and smoothness of image and outperform Bandelet
and Contourlet-based multiscale geometric analysis both in terms of objective denoising
performance measurements and image edge detail preservation. © 2012 Binary Information Press.
Main heading: Image denoising
Controlled terms: Edge detection
Uncontrolled terms: Bandelet - De-noising - De-noising algorithm - Denoising
methods - Detail preservation - Directionlet transform - Generator matrix - High
frequency - Image edge - Image energy - Multi-directional - Multiscale geometric
analysis - Performance measurements - Ringing effect
Classification code: 716 Telecommunication; Radar, Radio and Television - 716.1
Information Theory and Signal Processing
Database: Compendex
243.
Title: Current-carrying friction and wear characteristics of Ti3SiC2 by reactive sintering
Authors: Liu, Gang-Tian1 ; Xiao, Qi-Dan2 ; Lv, Zhen-Lin2 ; Zhang, Yong-Zhen1
Author affiliation: 1 Henan University of Science and Technology, Luoyang 471003, China
Corresponding author: Liu, G.-T. ([email protected])
Source title: Mocaxue Xuebao/Tribology
Abbreviated source title: Mocaxue Xuebao
Volume: 32
Issue: 3
Pages: 233-237
Language: Chinese
ISSN: 10040595
CODEN: MAXUE7
Abstract: The current carrying friction and wear characteristics of Ti3SiC2 are investigated at
different loads and electric currents by using an HST-100 friction and wear testing machine.
Scanning electron microscopy is used for the analysis of sample worn surface configuration and
determination of wear mechanism. The results show that without electric current the wear
mechanism of Ti3SiC2 is mainly mechanical wear, the friction coefficient reduces with increasing
load to a minimum value of 0.32 at a load of 120 N. Under the current carrying conditions, the
main wear mechanisms of Ti3SiC2 are arc erosion and mechanical wear, the wear rate of the
Ti3SiC2 decreases with increasing load to a lowest value of 2.2×10-6 mm3/(N·m) at a load of 120
N, which is close to that under the no current carrying conditions. Ti3SiC2 shows good current
carrying tribological properties under high load and different current.
Uncontrolled terms: Arc erosion - Friction and wear - Friction and wear characteristics
- Friction coefficients - High load - Minimum value - Reactive sintering
Tribological properties - Wear mechanisms - Wear rates - Worn surface
Database: Compendex
-
244.
Title: Minimum active sound absorption method study based on the reflected sound pressure of
piezoelectric materials
Authors: Liu, Gangtian1, 2 ; Ji, Xiaomin1
2 School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang
471003, China
Source title: Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
Abbreviated source title: Jixie Gongcheng Xuebao
Volume: 48
Issue: 13
Pages: 141-145
Language: Chinese
ISSN: 05776686
CODEN: CHHKA2
Publisher: Editorial Office of Chinese Journal of Mechanical, 22 Baiwanzhuang Dajie, Beijing,
100037, China
Abstract: A sound absorption method based on the reflected sound of the least power is put
forward. It takes piezoelectric materials as the main body material of the active sound absorption
to absorb the sound with the active sound absorption principle. It past the piezoelectric ceramic on
the thin simply support board through two microphones sensor which arranges in front of the
simply supported board to test the incident sound waves and reflection sound waves. According to
the detected reflection sound wave, the sound pressure which is produced by the wave and
vibration of the simply support board adding the piezoelectric ceramic voltage is the total reflected
sound pressure. At the condition of the least quadratic and the sum of the reflected sound pressure,
the voltage is obtained which adds in the piezoelectric ceramic, so as to achieve the effect of
sound absorption. The sound pressure quadratic sum theory of single piece of piezoelectric
ceramic chips and more pieces of piezoelectric ceramic chips is designed. Numerical calculation
and experiment are made according to the number of the piezoelectric ceramic chips for one, three
and five etc. The results show that this method could have good active effect of sound absorption,
and the effect is good when the number of piezoelectric ceramic chips is three. More piezoelectric
ceramic chips could not made the sound absorption effect obvious increase. © 2012 Journal of
Mechanical Engineering.
Main heading: Acoustic wave absorption
Controlled terms: Piezoelectric ceramics - Piezoelectric materials - Sound insulating
materials - Ultrasonics - Waves
Uncontrolled terms: Body materials - Numerical calculation - Quadratic sum Reflected sounds - Simply supported - Sound absorption - Sound pressures - Two
microphones
Classification code: 413.3 Sound Insulating Materials - 711 Electromagnetic Waves 751.1 Acoustic Waves - 753.1 Ultrasonic Waves - 812.1 Ceramics
DOI: 10.3901/JME.2012.13.141
Database: Compendex
245.
Title: Transformerless high voltage grid-connected inverter based on carrier phase-shifted
control
Authors: Liu, Gengbo1, 2 ; Zhang, Hui1, 2 ; Luo, Xiangyang1
Author affiliation: 1 Xi'An University of Technology, China
2 State Key Laboratory of Electrical Insulation and Power Equipment, Xi'An Jiaotong
University, China
Asia, IPEMC
Volume: 3
Issue date: 2012
Pages: 1594-1596
Language: English
ISBN-13: 9781457720864
United States
Abstract: As far as the problem of high voltage transformation in wind power concerned, a
module of transformerless high voltage grid-connected converter based on carrier phased-shift
control strategy is proposed. The working condition of cascaded power modules is elaborated, and
the analysis of four operating states is introduced as well in this paper. Furthermore, with the
technology of unipolar dual-frequency Carrier Phase shift PWM modulation (CPS-SPWM), the
corresponding simulation and experiments for three units cascaded converter confirm the control
method's effects. © 2012 IEEE.
Main heading: Phase shift
Controlled terms: Electricity - Motion control - Power electronics - Wind power
Uncontrolled terms: Carrier phase shift - Cascaded converters - Control methods Control strategies - CPS-SPWM - Dual frequency - Grid connected inverters Grid-connected converters - High voltage - Multilevel - Multilevel converter Operating state - Phase shifted - Phase-shifted control - Power module Transformerless - Working conditions
Classification code: 615.8 Wind Power (Before 1993, use code 611 ) - 701.1 Electricity:
Basic Concepts and Phenomena - 715.2 Industrial Electronic Equipment - 731.3 Specific
Variables Control - 942.2 Electric Variables Measurements
DOI: 10.1109/IPEMC.2012.6259071
Database: Compendex
246.
Title: A parameter estimation method of nonlinear system
Authors: Liu, Guangjun1 ; Xu, Xiaoping1 ; Wang, Feng2
Author affiliation: 1 School of Sciences, Xi'an University of Technology, Xi'an 710054, China
2 School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author: Liu, G.
Source title: Proceedings - 2012 IEEE Symposium on Electrical and Electronics Engineering,
EEESYM 2012
Abbreviated source title: Proc. - IEEE Symp. Electr. Electron. Eng., EEESYM
Monograph title: Proceedings - 2012 IEEE Symposium on Electrical and Electronics
Engineering, EEESYM 2012
Issue date: 2012
Pages: 396-398
Language: English
ISBN-13: 9781467323659
Conference name: 2012 IEEE Symposium on Electrical and Electronics Engineering, EEESYM
2012
Conference location: Kuala Lumpur, Malaysia
United States
Abstract: Nonlinear system parameter estimation is a main topic of modern identification. In
accordance with the variety of models of nonlinear systems, this paper proposed a general
parameter estimation method based on particle swarm optimization algorithm, which can be used
in most kinds of nonlinear system model. This method was applied to simulating parameter
estimation of several different examples of nonlinear system. The simulation results indicated that
the method is effective and feasibilitive. © 2012 IEEE.
Main heading: Nonlinear systems
Controlled terms: Algorithms - Electronics engineering - Parameter estimation Particle swarm optimization (PSO)
Uncontrolled terms: Parameter estimation method - Particle swarm optimization algorithm
Classification code: 921 Mathematics - 731.1 Control Systems - 723 Computer Software,
Data Handling and Applications - 718 Telephone Systems and Related Technologies; Line
and Television - 715 Electronic Equipment, General Purpose and Industrial - 714
Electronic Components and Tubes - 713 Electronic Circuits
DOI: 10.1109/EEESym.2012.6258674
Database: Compendex
247.
Title: Study on the fuzzy control strategy based on back-to-back micro grid connection
Authors: Liu, Jia-Jun1 ; Yao, Li-Xiao1 ; Tian, Dong-Meng1 ; Liu, Bo1 ; Liu, Dong1
Author affiliation: 1 Institute of Water Resources and Hydro-electricity, Xi'an University of
Corresponding author: Liu, J.-J.
Proceedings
Issue date: 2012
Language: English
ISSN: 21574839
E-ISSN: 21574847
ISBN-13: 9781457705472
United States
Abstract: This paper proposes a method of microgrid paralleling with large grid based on back to
back VSC. In double-loop control of back to back VSC, the outer loop control strategy is fuzzy
control strategy , the outer loop control references can be established by using the ratio between
frequency differences and active power transmission and the ratio of reactive power transmission
between voltage differences, then control parameters can be regulated automatically. The results of
PSCAD/EMTDC simulation show the effectiveness of the method and that fuzzy control can
increase dynamic response and stability of grid paralleling. © 2012 IEEE.
Main heading: Fuzzy control
Controlled terms: Computer simulation - Dynamic response - Power converters Power transmission
Uncontrolled terms: Control parameters - Double-loop control - Frequency differences
- Fuzzy control strategy - grid paralleling - Grid-based - Micro grid - Outer loop
- PSCAD/EMTDC simulations - Voltage difference - Voltage source converters
Classification code: 408.1 Structural Design, General - 602.2 Mechanical Transmissions 704.2 Electric Equipment - 723.5 Computer Applications - 731 Automatic Control
Principles and Applications - 921 Mathematics
DOI: 10.1109/APPEEC.2012.6307268
Database: Compendex
248.
Title: Research on tie-line power fluctuation based on power transmission parallel
Authors: Liu, Jia-Jun1 ; Yan, Bo1 ; Yao, Li-Xiao1 ; Liu, Bo1 ; Liu, Dong1 ; Xue, Mei-Juan1
Corresponding author: Liu, J.-J. ([email protected])
Source title: Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control
Abbreviated source title: Dianli Xitong Baohu yu Kongzhi
Volume: 40
Issue: 4
Pages: 125-128+144
Language: Chinese
ISSN: 16743415
Publisher: Power System Protection and Control Press, 1706 XJ Avenue, Xuchang, 461000,
China
Abstract: In order to ensure the safety and stability of power system, this paper proposes a
method to calculate tie-line power fluctuation in the process of paralleling based on power
transmission. Paralleling process is divided into power transmission and closing process. During
power transmission, tie-line power fluctuation depends on the reference power and control system
performance. At the moment of closing tie-line circuit breaker, tie-line power fluctuation is
considered as the fluctuation caused by power shortage in interconnected AC system, and power
fluctuation peak can be calculated through second-order system step response overshoot, power
fluctuation peak is mainly determined by the ratio of inertia constants of power systems on both
sides and the damping ratio of area oscillation mode. PSCAD simulation results suggest that
theoretical values are basically the same as simulation results, and this method can accurately
describe the paralleling dynamic process.
Main heading: Power transmission
Controlled terms: Electric power transmission - Electric power transmission networks Electrical engineering
Uncontrolled terms: AC systems - Circuit breaker - Control system performance Damping ratio - Dynamic process - Grid paralleling - Inertia constants - Oscillation
mode - Power fluctuations - Power shortage - PSCAD simulation - Second-order
systemss - Stability of power system - Theoretical values - Tie-line
Classification code: 602.2 Mechanical Transmissions - 706.1.1 Electric Power Transmission
- 709 Electrical Engineering, General
Database: Compendex
249.
Title: Simulation research on ice-melting of tie line by UPFC based on synchronizing device
Authors: Liu, Jiajun1 ; Tian, Dongmeng1 ; He, Changhong2 ; Yao, Lixiao1 ; Liu, Bo1
University of Technology, Xi'an 710048, Shaanxi Province, China
2 Ankang Power Supply Bureau, Ankang 725000, Shaanxi Province, China
Corresponding author: Liu, J. ([email protected])
Source title: Dianwang Jishu/Power System Technology
Abbreviated source title: Dianwang Jishu
Volume: 36
Issue: 4
Pages: 89-93
Language: Chinese
ISSN: 10003673
CODEN: DIJIES
Publisher: Power System Technology Press, China Electric Power Research Institute, Qinghe,
Bejing, 100085, China
Abstract: The ice-coating of transmission lines occurred in winter seriously affects reliable
operation of power grids in China. In allusion to this situation and considering the result of earlier
research that after the synchronizing device turned into unified power flow controller (UPFC) the
synchronizing device possesses the ability of power flow control, such an ice-melting approach
that the ice-melting is carried out through enlarging the load current of ice-covered tie line to
make the tie line overloaded by the UPFC based on the synchronizing device is proposed and
simulated by PSCAD/EMTDC and simulation results show that the load current of the ice-covered
tie line can play the role of ice-melting. The feasibility and effectiveness of ice-melting by power
transmission are theoretically explained.
Main heading: Ice
Controlled terms: Coatings - Electric control equipment - Electric power transmission Melting - Power control - Power transmission - Synchronization
Uncontrolled terms: Ice-coating - Ice-melting - Load currents - Power flow controls
- Power grids - PSCAD/EMTDC - Reliable operation - Simulation research - Tie
line - Unified power flow controllers
Classification code: 732.1 Control Equipment - 731.3 Specific Variables Control 706.1.1 Electric Power Transmission - 961 Systems Science - 602.2 Mechanical
Transmissions - 531.1 Metallurgy - 443 Meteorology - 539 Metals Corrosion and
Protection; Metal Plating
Database: Compendex
250.
Title: An effective CFS-PML implementation for cylindrical coordinate FDTD method
Authors: Liu, Jiangfan1 ; Wan, Guobin1 ; Zhang, Jinsheng2 ; Xi, Xiaoli3
Author affiliation: 1 Northwestern Polytechnical University, Xi'an 710052, China
2 High-Tech Institute, Xi'an 710025, China
3 Xi'An University of Technology, Xi'an 710048, China
Source title: IEEE Microwave and Wireless Components Letters
Abbreviated source title: IEEE Microwave Compon. Lett.
Volume: 22
Issue: 6
Issue date: 2012
Pages: 300-302
Language: English
ISSN: 15311309
CODEN: IMWCBJ
Abstract: The stretched coordinate (SC) perfectly matched layer (PML) absorbing boundary in
cylindrical coordinate system is implemented using the bilinear transform technique. The
proposed PML performs much better in attenuating low frequency evanescent waves as compared
to the conventional UPML (anisotropic medium). Numerical results show the efficiency of the
proposed algorithm. © 2012 IEEE.
Main heading: Finite difference time domain method
Controlled terms: Algorithms - Anisotropic media - Electromagnetic wave absorption Numerical methods - Optical waveguides
Uncontrolled terms: Absorbing boundaries - Anisotropic medium - Bilinear transforms
- Complex frequency shifted - Cylindrical coordinate systems - Cylindrical coordinates
- Evanescent wave - FDTD - Low frequency - Numerical results
- Perfectly
Matched Layer
Classification code: 711 Electromagnetic Waves - 717.2 Optical Communication Equipment
- 921 Mathematics - 921.6 Numerical Methods - 951 Materials Science
DOI: 10.1109/LMWC.2012.2197818
Database: Compendex
251.
Title: Robust digital watermarking scheme using wavelet-based contourlet transform
Authors: Liu, Jing1 ; Liu, Gang2 ; Li, Aimin1 ; Yang, Chunxia1
Author affiliation: 1 Faculty of Computer and Engineering, Xi'an University of Technology,
Xi'an 710048, China
2 School of Computer Science and Technology, Xidian University, Xi'an 710071, China
Volume: 8
Issue: 16
Pages: 6695-6703
Language: English
ISSN: 15539105
Abstract: A novel highly robust and oblivious watermarking scheme using wavelet-based
contourlet transform (WBCT) is presented in this paper, which uses the texture and energy
features of the image to find the embedding watermarking position. WBCT retains multiscale
framework and directionality from the Contourlet yet abandoning its coefficient spread property.
The watermark is embedded into the more energy coefficients of the largest detail subbands of the
WBCT. Experimental results show the proposed algorithm is highly robust for different attacks on
the watermarked image and superior in terms of both the watermarking invisibility and the
watermarking robustness. In addition, the comparison experiments prove the high-efficiency of
detection of the proposed method. © 2012 Binary Information Press.
Main heading: Image watermarking
Controlled terms: Textures - Watermarking
Uncontrolled terms: Directionality - Energy feature - Multiscale framework - Spread
property - Texture information - Wavelet-based contourlet transforms
Classification code: 723.2 Data Processing and Image Processing - 811.1.1 Papermaking
Processes - 933 Solid State Physics
Database: Compendex
252.
Title: A new digital watermarking algorithm based on WBCT
Authors: Liu, Jing1 ; Liu, Gang2 ; He, Wenjuan1 ; Li, Ye1
2 School of Computer Science and Technology, Xidian University, Xi'an 710071, China
Source title: Procedia Engineering
Abbreviated source title: Procedia Eng.
Volume: 29
Monograph title: 2012 International Workshop on Information and Electronics Engineering
Issue date: 2012
Pages: 1559-1564
Language: English
ISSN: 18777058
Conference name: 2012 International Workshop on Information and Electronics Engineering,
IWIEE 2012
Sponsor: Harbin University of Science and Technology; International Science and Engineering
Research Center
Abstract: The paper presents an imperceptible and robust digital watermarking algorithm using
wavelet-based contourlet transform (WBCT), The WBCT can give the anisotropy optimal
representation of the edges and contours in the image by virtue of the characteristics of multi-scale
framework and multi-directionality. The proposed algorithm takes advantage of the significant
texture information of the image to find the embedding watermarking position. Experimental
results show the validity of the proposed algorithm in terms of both the watermarking invisibility
and the watermarking robustness. In addition, the comparison experiments prove the
high-efficiency of the proposed method. The paper presents an imperceptible and robust digital
watermarking algorithm using wavelet-based contourlet transform (WBCT), The WBCT can give
the anisotropy optimal representation of the edges and contours in the image by virtue of the
characteristics of multi-scale framework and multi-directionality. The proposed algorithm takes
advantage of the significant texture information of the image to find the embedding watermarking
position. Experimental results show the validity of the proposed algorithm in terms of both the
watermarking invisibility and the watermarking robustness. In addition, the comparison
experiments prove the high-efficiency of the proposed method. © 2011 Published by Elsevier Ltd.
Controlled terms: Algorithms - Anisotropy - Electronics engineering - Experiments
- Image texture - Optimization - Textures - Watermarking
Uncontrolled terms: Digital image watermarking - Multi-directionality - Multiscales Texture information - Watermarking algorithms - Watermarking robustness Wavelet-based contourlet transforms
Classification code: 933 Solid State Physics - 723.2 Data Processing and Image Processing
- 811.1.1 Papermaking Processes - 901.3 Engineering Research - 921 Mathematics 921.5 Optimization Techniques - 931.2 Physical Properties of Gases, Liquids and Solids -
723 Computer Software, Data Handling and Applications - 717 Optical Communication 716 Telecommunication; Radar, Radio and Television - 715 Electronic Equipment, General
Purpose and Industrial - 714 Electronic Components and Tubes - 713 Electronic Circuits
- 718 Telephone Systems and Related Technologies; Line Communications
DOI: 10.1016/j.proeng.2012.01.173
Database: Compendex
253.
Title: Influences of processing parameters on reciprocating extrusion process of AZ31
magnesium alloy
Authors: Liu, Jun1 ; Guo, Xue-Feng2 ; Zhang, Zhong-Ming1 ; Ye, Yong-Nan1
2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000,
Henan, China
Source title: Cailiao Gongcheng/Journal of Materials Engineering
Abbreviated source title: Cailiao Gongcheng
Issue: 5
Pages: 70-75
Language: Chinese
ISSN: 10014381
CODEN: CAGOEW
Publisher: Beijing Institute of Aeronautical Materials (BIAM), P.O. Box 81, Beijing, 100095,
China
Abstract: The rigid visco-plastic finite element method was used for the study on the coupling
thermal-mechanical numerical simulation of reciprocating extrusion process of AZ31 magnesium
alloy. The influence of initial temperature of blank, extrusion velocity and friction factor on the
equivalent strain, equivalent stress and temperature field of reciprocating extrusion process was
investigated. The results show that the extrusion velocity has little effect on the peak value of
equivalent strain, with the increasing of the extrusion velocity, the peak value of temperature
within the workpiece ascends linearly, the temperature distribution becomes more inhomogeneous,
while the peak value of stress first increases and then decreases. With the increasing of initial
blank temperature, the peak value of equivalent stress decreases linearly; and the friction factor
has little effect on the peak value of temperature; with the increasing of friction factor, the peak
value of equivalent strain first increases and then remains stable, and the peak value of equivalent
stress increases with decreasing amplitude.
Main heading: Extrusion
Controlled terms: Computer simulation - Finite element method - Magnesium alloys
Uncontrolled terms: AZ31 magnesium alloy - Equivalent strains - Equivalent stress Extrusion velocity - Friction factors - Peak values - Processing parameters Reciprocating extrusion - Work pieces
Classification code: 535.2.2 Metal Forming Practice - 542.2 Magnesium and Alloys 723.5 Computer Applications - 921.6 Numerical Methods
Database: Compendex
254.
Title: The changes of electrical signals in corn at different temperatures
Authors: Liu, Kai1 ; Xi, Gang1 ; Fan, Lin-Lin2 ; Meng, Xiao-Li1 ; Gao, Xiang1 ; Liu, Qing1
Author affiliation: 1 School of Sciences, Xi'An University of Technology, Xi'an 710054, China
2 Mathematics and Physics Section, Xi'An Commanding College of CAPF, Xi'an 710038, China
Corresponding author: Liu, K. ([email protected])
Volume: 10
Issue: PART A
Issue date: 2011
Pages: 39-44
Language: English
E-ISSN: 18780296
Abstract: Electrical signals in plants play the role of biological messages. It is significant to
make them understood. In order to acquire the basic characteristics of the electrical signal in corn,
wavelet soft-threshold de-noising method was introduced to reduce the noise for the acquisition
signals. The amplitudes of electrical signals in corn were μV level, and the frequencies were
below 1Hz, large parts of which were lower than 0.5Hz. The amplitudes were large, and the
distribution of power spectrum was stable when the environment temperature between 20°C and
35°C. The ratio of signal below 0.1Hz gained when the temperature was above 35°C, while the
amplitude reduced obviously. It can be considered that the disappearance of the high frequency
and the reducing of the amplitudes were the signs of cell vital activity subsiding. Thus, it is
possible to achieve the prediction life status according to the amplitudes and the frequencies of
electrical signals in plants. © 2011 Published by Elsevier Ltd.
Main heading: Signal processing
Controlled terms: Environmental engineering - Power spectrum - Temperature
Uncontrolled terms: Denoising methods - Electrical signal - Environment temperature High frequency - Large parts - Soft-threshold - Wavelet denoise - Zea mays L
Classification code: 454 Environmental Engineering - 641.1 Thermodynamics - 711
Electromagnetic Waves - 716.1 Information Theory and Signal Processing - 921
Mathematics - 941 Acoustical and Optical Measuring Instruments
DOI: 10.1016/j.proenv.2011.09.008
Database: Compendex
255.
Title: Modeling and analysis of a feed servo system for a large CNC machine tool
Authors: Liu, Li-Lan1 ; Liu, Hong-Zhao1 ; Wu, Zi-Ying1 ; Wang, Jian-Ping1
Author affiliation: 1 School of Machinery and Precision Instrument Engineering, Xi'an
Corresponding author: Liu, L.-L.
Source title: Zhendong yu Chongji/Journal of Vibration and Shock
Abbreviated source title: J Vib Shock
Volume: 31
Issue: 6
Pages: 32-36
Language: Chinese
ISSN: 10003835
Publisher: Chinese Vibration Engineering Society, 121 Nanjiang Lu, Shanghai, 200011, China
Abstract: The transverse feed system of a large CNC machine tool was investigated. The
mechanical and mathematical models governing the system with friction and transmission
stiffness were established. And the influences of the variance of the static and kinematic friction
and the transmission stiffness on the outputs of the worktable were analyzed with numerical
simulations. A few possible conditions for the stick-slip occurrence of the worktable were obtained.
The rationality of the theoretical analysis was verified with the field experiment results of the
transverse feed system of the large CNC machine tool. The study results provided a basis for
improving stability and machining accuracy of feed servo systems.
Main heading: Numerical control systems
Controlled terms: Friction - Machining - Mathematical models - Servomechanisms
- Slip forming - Stick-slip - Stiffness - Tribology
Uncontrolled terms: CNC machine tools - Feed systems - Field experiment Machining Accuracy - Modeling and analysis
Classification code: 931.1 Mechanics - 931 Classical Physics; Quantum Theory; Relativity
- 921 Mathematics - 731.1 Control Systems - 951 Materials Science - 705 Electric
Generators and Motors - 422 Strength of Building Materials; Test Equipment and Methods 421 Strength of Building Materials; Mechanical Properties - 412 Concrete - 604.2
Machining Operations
Database: Compendex
256.
Title: Effects of the varying normal force on the stick slip motion of systems with friction
Authors: Liu, Lilan1
Author affiliation: 1 Xi'an University of Technology, No. 5 Jinhua South Road, Xi'an, China
Corresponding author: Liu, L. ([email protected])
Volume: 479-481
Monograph title: Advanced Mechanical Design
Issue date: 2012
Pages: 1078-1083
Language: English
ISSN: 10226680
ISBN-13: 9783037853726
ICMSE 2012
Abstract: In most cases, the normal force applied to mechanical systems with friction is
supposed to be constant for convenience. However, through experiments, normal vibration has
been proved to have an effect on the stability of mechanical systems. Aiming at uncover the
effects of the varying normal force on the stick slip motion, a belt driven system with LuGre
friction is investigated. The driving velocity is considered as the critical parameter for stick slip
occurrence. By means of the Jacobian matrix and the Taylor expansion, the critical driving
velocity is achieved analytically as a function of frequency and acceleration of the varying normal
force. In addition, the influence of the varying normal force on the size of limit cycles is also
studied numerically. Results show that the variation of the applied normal force has an obviously
effect on the stability of mechanical systems, and it should not be ignored in the structure design
and the stability analysis for high precision mechanical systems. © (2012) Trans Tech
Publications.
Main heading: Mechanics
Controlled terms: Convergence of numerical methods - Delta sigma modulation Friction - Jacobian matrices - Machine design - Manufacture - Mechanical
engineering - Slip forming - Stick-slip - Tribology
Uncontrolled terms: Belt-driven systems - Critical parameter - Driving velocity Function of frequency - High precision - Limit cycle - Lugre friction - Mechanical
systems - Normal forces - Normal vibrations
- Stability analysis - Stick slip
motion - Structure design - Taylor expansions
- 921.6 Numerical Methods - 921.1 Algebra - 716 Telecommunication; Radar, Radio and
Television - 608 Mechanical Engineering, General - 601 Mechanical Design - 537.1
Heat Treatment Processes - 412 Concrete
Database: Compendex
257.
Title: Modeling and analysis of the crossfeed servo system of a heavy-duty lathe with friction
Authors: Liu, Lilan1 ; Wu, Ziying1 ; Liu, Hongzhao1
Author affiliation: 1 School of Mechanical Engineering, Xi'an University of Technology, Xi'an,
China
Corresponding author: Liu, L. ([email protected])
Source title: Mechanics Based Design of Structures and Machines
Abbreviated source title: Mech. Based Des. Struct. Mach.
Volume: 41
Issue: 1
Pages: 1-20
Language: English
ISSN: 15397734
E-ISSN: 15397742
Publisher: Taylor and Francis Inc., 325 Chestnut St, Suite 800, Philadelphia, PA 19106, United
States
Abstract: The performance of feed servo system has an important effect on the path tracking and
positioning accuracy of computer numerical control (CNC) machine tools. The nonlinearity of
friction can lead to the occurrences of unstable behavior of the feed servo system, such as
stick-slip motion and oscillation. The crossfeed servo system of a heavy-duty lathe with closed
loop control subjected to friction is studied in this article. The multi-degree of freedom (MDOF)
mechanical and mathematical models of the crossfeed servo system are established. In the models,
the torsional stiffness of shaft, meshing stiffness of gears, ballscrew-nut pair contacting stiffness,
axial stiffness of the bearing, and the ballscrew and the kinematical friction force between up and
down guideways are considered. The weakest link of the mechanical transmission system of the
feed system is found by simulations. In the field test, the critical stick slip feed velocity at
different feed position is measured by the Renishaw XL laser interferometer. And the relation
curve of the critical stick slip velocity versus the axial stiffness of the ballscrew is obtained. The
change tendency of the simulation results and that of the experimental results matches well. The
research conclusions can provide a theoretical support for the optimal design and performance
prediction of the feed servo system of heavy-duty lathes. Copyright © Taylor & Francis Group,
LLC.
Main heading: Chemical contamination
Controlled terms: Computer control systems - Friction - Laser interferometry Lathes - Mathematical models - Servomechanisms - Slip forming - Stick-slip Stiffness - Tribology
Uncontrolled terms: Axial stiffness - Ball-screw - Closed-loop control - Computer
numerical control machines - Feed position - Feed systems - Feed velocity - Field
test - Friction force - Laser interferometer - Mechanical transmission system Meshing stiffness - Modeling and analysis - Optimal design - Path tracking Performance prediction - Positioning accuracy - Renishaw - Slip velocity - Stick
slip motion
- Torsional stiffness - Unstable behavior
- 921 Mathematics - 822.3 Food Products - 744.9 Laser Applications - 951 Materials
Science - 731.1 Control Systems - 603.1 Machine Tools, General - 422 Strength of
Building Materials; Test Equipment and Methods - 421 Strength of Building Materials;
Mechanical Properties - 412 Concrete - 705 Electric Generators and Motors
DOI: 10.1080/15397734.2012.675873
Database: Compendex
258.
Title: Environmental effect on fatigue properties of die-cast magnesium alloys
Authors: Liu, Mabao1 ; Liu, Qida1 ; Wang, Xianhui2 ; Gao, Hong1
Author affiliation: 1 School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author: Liu, M. ([email protected])
Volume: 152-154
Issue date: 2012
Pages: 548-553
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853528
ICMEM 2012
Abstract: In order to study the environmental effect on fatigue properties of die-cast magnesium
alloys, several fatigue tests were performed for AM50HP and AZ91HP in ambient air, vacuum,
engine oil, deionized water and 3.5% NaCl solution. It is found that the S-N curves are steeper in
corrosive environment and AM50HP shows a higher sensitivity to the action of 3.5% NaCl
solution than AZ91HP. Both alloys do not have endurance limits in 3.5% NaCl solution, whereas
endurance limits could be detected in ambient air, which are about 90MPa and 100MPa for
AZ91HP and AM50HP respectively. It is also found that FCP rate is substantially increased in
corrosion media: the presence of oxygen causes the production of oxide film on the fresh surfaces
made during the cyclic loading and the oxide film would restrict the deformation of the matrix
beneath the hard film and promote hydrogen embrittlement in the wet condition. © (2012) Trans
Tech Publications.
Main heading: Magnesium alloys
Controlled terms: Corrosion fatigue - Deionized water - Durability - Fatigue testing
- Mechanical engineering - Oxide films - Sodium chloride - Vacuum applications
Uncontrolled terms: 3.5%Nacl - Ambient air - Corrosion media - Corrosive
environment - Cyclic loadings - Die-cast - Endurance limit - Engine oil Environment - Fatigue cracks - Fatigue properties - Fatigue tests - Fresh surfaces
- Hard films - matrix - S-N curve - Wet conditions
Classification code: 712.1.2 Compound Semiconducting Materials - 633.1 Vacuum
Applications - 608 Mechanical Engineering, General - 804.2 Inorganic Compounds 542.2 Magnesium and Alloys - 422.2 Strength of Building Materials : Test Methods - 421
Strength of Building Materials; Mechanical Properties - 445.1 Water Treatment Techniques
Database: Compendex
259.
Title: Application of smart coating sensor in crack detection for aircraft
Authors: Liu, Mabao1 ; Wang, Xianhui2 ; Liu, Qida1 ; Gao, Hong1
Author affiliation: 1 School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China
Volume: 152-154
Issue date: 2012
Pages: 554-559
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853528
ICMEM 2012
Abstract: A novel smart coating sensor, consisted of driving layer, sensing layer and protective
layer, has been successfully developed, and it was utilized to detect crack initiation and growth in
fatigue tests. The results show that the smart coating sensor can detect cracks above 300μm,
corresponding to the increment of the sensing layer's resistance at the level of 0.05Ω.
Subsequently, the development of SCS is of importance significance in the substitution of an
existed inspection that requires substantial disassembly and surface preparation, and, thus, can
find numerous applications in difficult-to-access locations on commercial and military aircrafts. ©
(2012) Trans Tech Publications.
Main heading: Aircraft materials
Controlled terms: Aircraft - Coatings - Crack detection - Cracks - Electric
resistance - Fatigue testing - Growth (materials) - Mechanical engineering Sensors
Uncontrolled terms: Driving layer - Fatigue tests - Protective layers - Sensing layers
- Smart coatings - Surface preparation
Classification code: 951 Materials Science - 801 Chemistry - 652.2 Aircraft Materials 652.1 Aircraft, General - 608 Mechanical Engineering, General - 539 Metals Corrosion
and Protection; Metal Plating - 423 Non Mechanical Properties and Tests of Building
Materials - 422.2 Strength of Building Materials : Test Methods - 421 Strength of Building
Database: Compendex
260.
Title: Fault diagnosis of hydro turbine governor based on fuzzy neural networks
Authors: Liu, Minghua1 ; Nan, Haipeng1 ; Yu, Xiangyang1
Author affiliation: 1 Institute of Water Resource and Hydro-Electric Engineering, Xi'an
Volume: 31
Issue: 3
Pages: 234-239
Language: Chinese
ISSN: 10031243
Abstract: This paper analyzes fault mechanism of regulating process for hydraulic turbine
governor and establishes rules of fault diagnosis according to experts' experiences. A fuzzy neural
network is developed by taking advantages of expert knowledge expression and its self-learning
ability. It can be trained with a number of diagnosis rules. As an expert system, it was applied to
fault diagnosis for a hydraulic turbine governor, overcoming the difficulties in sample collection,
insufficient expert experiences and 'combination explosion' problem of fuzzy rules. Simulation
results show that it is a feasible and effective method in fault diagnosis. © right.
Main heading: Fuzzy neural networks
Controlled terms: Expert systems - Failure analysis - Governors - Hydraulic turbines
Uncontrolled terms: Expert experience - Expert knowledge - Fault mechanism Hydroturbine governor - Hydroturbines - Sample collection - Self-learning ability
Classification code: 421 Strength of Building Materials; Mechanical Properties - 612.1.1
Internal Combustion Engine Components - 617.1 Hydraulic Turbines - 723.4 Artificial
Intelligence - 723.4.1 Expert Systems - 921 Mathematics
Database: Compendex
261.
Title: Inhomogeneous creep of polarization and strain around a circular hole in ferroelectrics
under electric field: Experiments and modeling
Authors: Liu, Q.D.1 ; Wang, X.H.2 ; Liu, M.B.1
Author affiliation: 1 State Key Laboratory for Strength and Vibration, School of Aerospace,
Xian Jiaotong University, Xian, 710049, China
2 School of Materials Science and Engineering, Xian University of Technology, Xian, 710048,
China
Corresponding author: Liu, M.B. ([email protected])
Source title: Ferroelectrics, Letters Section
Abbreviated source title: Ferroelectr Lett Sect
Volume: 39
Issue: 1-3
Pages: 8-14
Language: English
ISSN: 07315171
E-ISSN: 15635228
CODEN: FELEDJ
States
Abstract: The simulation of inhomogeneous creep around a circular hole in a solid of anisotropic
ferroelectric is presented under various levels of constant electric potential condition from virgin
state aiming for understanding the experimental situation by birefringence measurements. Due to
the electric field concentration effect presented by the hole, the time dependent fields of stress,
strain and polarization can be determined using the finite element method. It is found that the
electric field concentration factor by a hole can achieve 6times of the applied loads and shows
slightly time dependence; the creep of polarization and strains process is controlled by the local
electric field magnitude, which governs the saturation of remnant polarization and strain. The
result of principal strain difference around a hole agrees with the birefringence observation. This
confirms the established birefringence-strain correlation by the previous experimental study. ©
2012 Copyright Taylor and Francis Group, LLC.
Main heading: Hole concentration
Controlled terms: Birefringence - Creep - Electric fields - Electric potential Ferroelectric materials - Ferroelectricity - Finite element method - Polarization Strain - Stress concentration
Uncontrolled terms: Applied loads - Birefringence measurements - Circular holes Electrical boundary conditions - Experimental studies - Ferroelectric property - Field
concentrations - Local electric field - Potential conditions - Principal strain - PZT
- Remnant polarizations - Time dependence - Time-dependent fields - Virgin state
Classification code: 951 Materials Science - 921.6 Numerical Methods - 741.1
Light/Optics - 708.1 Dielectric Materials - 701.1 Electricity: Basic Concepts and
Phenomena - 422 Strength of Building Materials; Test Equipment and Methods - 421
Strength of Building Materials; Mechanical Properties
DOI: 10.1080/07315171.2012.707023
Database: Compendex
262.
Title: A novel digital optimal control for DC-DC converters based on simplified unified model
Authors: Liu, Qingfeng1 ; Leng, Zhaoxia1 ; Sun, Jinkun1 ; Wang, Huamin1
Corresponding author: Liu, Q.
Volume: 27
Issue: 6
Pages: 118-125
Language: Chinese
ISSN: 10006753
CODEN: DIJXE5
Abstract: Operating on big signal condition, the work mode of DC-DC switching converter isn't
only one, so, a novel optimal control strategy based on the simplified unified discrete model is
presented, which is easy to be realized adopting digital way for DC-DC converter operating in
CCM and DCM. The power-exponent functions in model coefficient matrix are linearized to
simplify the unified discrete model based on CCM and DCM. According to the voltage and
current characteristics of simplified model, the objective function is designed. Optimal control
strategy is deduced by substituting model states into objective function and minimizing the
objective function. According to the recursion states and optimal control, the operation mode of
simplified model is decided by itself and the output of model provides the optimization output
track. For compensating the control error caused by parasitic parameters in actual converter
system, the optimal control is modified according to the output error of actual system and model.
In this paper, the simplified unified discrete model of Boost converter is founded, optimal control
is obtained, and digital PI is adopted to adjust control error. Simulation and experimental results
validate that the output voltage of converter can be controlled with fast response and without
impulse voltage in starting period, and the output voltage of converter can be controlled accurately
and quickly on various work conditions.
Main heading: Current voltage characteristics
Controlled terms: Control - DC-DC converters - Digital control systems - Electric
converters - Optimal control systems
Uncontrolled terms: Actual system - BOOST converter - Control errors - Converter
system - Current characteristic - Dc-dc switching converters - Digital control Digital optimal control - Discrete models - Fast response - Impulse voltage Model coefficient - Model state - Objective functions - Operation mode - Optimal
control strategy - Optimal controls - Output errors - Output voltages - Parasitic
parameter - Recursions - Signal condition - Unified model - Work condition Work mode
Classification code: 704.1 Electric Components - 704.2 Electric Equipment - 714
Electronic Components and Tubes - 731 Automatic Control Principles and Applications 731.1 Control Systems - 732 Control Devices
Database: Compendex
263.
Title: Influence of Mo target microstructure on the morphology and properties of sputtered films
Authors: Liu, Renzhi1, 2 ; Sun, Yuanjun2 ; Wang, Kuaishe1 ; An, Geng2 ; Li, Jing2 ; Wang,
Yinting2
Author affiliation: 1 Xi'an University of Technology and Architecture, Xi'an 710055, China
2 Jinduicheng Moly Co. Ltd., Xi'an 710075, China
Corresponding author: Liu, R. ([email protected])
Source title: Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Abbreviated source title: Xiyou Jinshu Cailiao Yu Gongcheng
Volume: 41
Issue: 9
Pages: 1559-1563
Language: Chinese
ISSN: 1002185X
CODEN: XJCGEA
Publisher: Rare Metals Materials and Engineering Press, P.O. Box 51, Xi'an, 721014, China
Abstract: Four kinds of Mo targets with different microstructures were sputtered by the same
sputtering line under the same sputtering process. Microstructures (face and fractured
cross-section) of sputtered films were analyzed with SEM, and the orientation of crystals and
square resistance were measured with XRD and four-probe array method, respectively. Influence
of Mo target's microstructure on deposition rate and square resistance of the sputtered film were
discussed. Results show that the sputtering film's morphology of different Mo-targets is rarely
different. When Mo targets are with 80% fine grains under 50 μm, the uniformity of sputtering
film's thickness and resistance are satisfied. The preferred orientation of Mo sputtered film is
mostly (110). The target microstructures have little effect on sputtering film crystals' orientation.
When the Mo target's grain size is finer and the area rate of grain boundary is higher, the
sputtering film has faster deposition velocity and the sputtering film's thickness is larger. The
thickness reduction of sputtering target is more homogeneous, which raises the utilization rate of
sputtering targets. Copyright © 2012, Northwest Institute for Nonferrous Metal Research.
Published by Elsevier BV. All rights reserved.
Main heading: Microstructure
Controlled terms: Crystal orientation - Grain boundaries - Morphology
Uncontrolled terms: Deposition velocities - Fine grains - Four-probe - Grain size Preferred orientations - Sputtered films - Sputtering process - Sputtering target Square resistance - Thickness reduction - Utilization rates - XRD
Classification code: 933 Solid State Physics - 951 Materials Science
Database: Compendex
264.
Title: The study on the wear mechanism of electrode materials in negative EDM process and the
effect of carbon deposition layer
Authors: Liu, Shu-Yang1 ; Huang, Yu-Mei1
University of Technology, Xi'an, Shaanxi 710048, China
Corresponding author: Liu, S.-Y. ([email protected])
Source title: Tien Tzu Hsueh Pao/Acta Electronica Sinica
Abbreviated source title: Tien Tzu Hsueh Pao
Volume: 40
Issue: 4
Pages: 654-660
Language: Chinese
ISSN: 03722112
CODEN: TTHPAG
Publisher: Chinese Institute of Electronics, P.O. Box 165, Beijing, 100036, China
Abstract: Based on the field-emission theory, the wear of electrode materials and the work
energy were studied, and the single-hole EDMing contrast experiments with different process
parameters were designed and carried out. The analysis on experimental results show that, copper
electrode has the higher discharging energy, higher machining efficiency but lower material wear
comparing with A3# steel ones; the carbon deposition layer on the end surface plays a better role
in reducing the wear of copper electrode while has little effect on A3# ones; and to copper
electrode, the bigger ratios of valid discharging time will be helpful to improve the machining
efficiency, lower the wear of electrode, but the wear-reducing function of carbon deposition layer
will recede either.
Main heading: Carbon
Controlled terms: Electrodes - Tribology
Uncontrolled terms: Carbon deposition - Contrast experiment - Copper electrodes EDM - Electrode material - Machining efficiency - Material wear - Process
parameters - Wear mechanisms
Classification code: 704.1 Electric Components - 804 Chemical Products Generally - 931
Classical Physics; Quantum Theory; Relativity
DOI: 10.3969/j.issn.0372-2112.2012.04.006
Database: Compendex
265.
Title: Study on hydration of poly(N-vinylcaprolactam) microgels by near-IR and mid-IR
spectroscopy
Authors: Liu, Tao1 ; Chen, Jianhong1 ; Sugihara, Shinji2 ; Maeda, Yasushi2
2 Department of Applied Chemistry and Biotechnology, University of Fukui, Fukui 910-8507,
Japan
Corresponding author: Maeda, Y. ([email protected])
Source title: Colloid and Polymer Science
Abbreviated source title: Colloid Polym. Sci.
Volume: 290
Issue: 8
Pages: 763-767
Language: English
ISSN: 0303402X
E-ISSN: 14351536
CODEN: CPMSB6
Abstract: Hydration of poly(N-vinylcaprolactam) microgels was investigated by near-infrared
(NIR) and mid-infrared (MIR) spectroscopy. The thermosensitive microgels were prepared by
emulsion polymerization, and turbidity, dynamic light scattering, and differential scanning
calorimetry measurements were carried out. In MIR spectra, carbonyl bands consist of three
components due to double, single, and zero hydrogen-bonding carbonyl groups as verified by
density functional theory calculations. The relative intensities changed critically at the volume
phase transition temperature upon heating. In NIR spectra, two absorbance peaks around 5,900
cm-1 were observed, which can be assigned to the first overtone of C-H bands. Both of them
undergo red shifts during the phase transition in a similar way to that of fundamental bands in
MIR spectra. The result suggests that NIR spectroscopy may be a new general method that can
provide new information for research on hydration of thermosensitive microgels. ©
Springer-Verlag 2012.
Main heading: Gels
Controlled terms: Density functional theory - Differential scanning calorimetry Emulsion polymerization - Hydration - Hydrogen - Infrared devices - Iridium Near infrared spectroscopy - Turbidity
Uncontrolled terms: Absorbance peak - Carbonyl bands - Carbonyl groups - Density
functional theory calculations - Fundamental bands - General method - Micro-gels Microgel - Mid-infrared spectroscopy - Mid-IR spectroscopy - Near infra red Near-IR - NIR spectroscopy - NIR spectrum - Red shift - Relative intensity Thermosensitive microgels - Three component - Volume phase transition
Classification code: 804 Chemical Products Generally - 802.2 Chemical Reactions 801.3 Colloid Chemistry - 922.1 Probability Theory - 801 Chemistry - 741.1
Light/Optics - 547.1 Precious Metals - 741.3 Optical Devices and Systems
DOI: 10.1007/s00396-012-2621-2
Database: Compendex
266.
Title: NMS-based blurred image sub-pixel registration
Authors: Liu, Wei1 ; Zhu, Hong1 ; Han, Gui-Jin2
2 School of Automation, Xi'an University of Posts and Telecommunications, Xi'an, China
Corresponding author: Liu, W. ([email protected])
Source title: Proceedings of 2011 International Conference on Image Analysis and Signal
Abbreviated source title: Proc. Int. Conf. Image Anal. Signal Process., IASP
Monograph title: Proceedings of 2011 International Conference on Image Analysis and Signal
Issue date: 2011
Pages: 98-101
Language: English
ISBN-13: 9781612848808
Conference name: 3rd International Conference on Image Analysis and Signal Processing, IASP
2011
United States
Abstract: Sub-pixel accurate registration is the challenging aspect of super-resolution
reconstruction. However, the blur contained in the low-resolution images will result in inaccurate
registration and an unsatisfactory reconstruction result. Therefore, this paper introduces a blurred
image sub-pixel registration method based on Non-Maxima Suppression (NMS). By analyzing the
relationship between the image edge energy and the registration precision, NMS technology is
used to extract the local gradient magnitude maximum point set adaptively, which is used for
image registration as strong information. Experimental results show that this method can improve
the registration accuracy of blur low-resolution images. © 2011 IEEE.
Main heading: Pixels
Controlled terms: Image analysis - Image registration - Optical resolving power Signal processing
Uncontrolled terms: Accurate registration - Blurred image - Defocus blur - Image
edge - Local gradients - Low resolution images - NMS - Point set - Registration
accuracy - Registration methods
- Registration precision - Sub pixels - Super
resolution - Super-resolution reconstruction
Classification code: 716.1 Information Theory and Signal Processing - 723.2 Data
Processing and Image Processing - 723.5 Computer Applications - 741.1 Light/Optics
DOI: 10.1109/IASP.2011.6109006
Database: Compendex
267.
Title: Feasibility of the visible light-activation of 4H-SiC thyristors
Authors: Liu, Wentao1 ; Chen, Zhiming2 ; Li, Lianbi2, 3
Author affiliation: 1 Aerospace Geomatics Centre, Beijing 100000, China
2 Department of Electronic Engineering, Xi'an University of Technology, Xi'an 710048, China
3 School of Science, Xi'an Polytechnic University, Xi'an, 710048, China
Corresponding author: Liu, W. ([email protected])
Issue date: 2012
Pages: 171-174
Language: English
ISBN-13: 9781467329750
2012
United States
Abstract: A light triggered 4H-SiC thyristor (LTT) with a gate of p+-Si/n+-Si/p-4H-SiC
heterojunction structure (Si/4H-SiC HLTT) is designed. Its switch-characteristics at different
forward-blocking-voltages are simulated under an activation of visible light with wavelength of
473nm at 600K. Results indicate that it is feasible to realize the visible light-activation of 4H-SiC
thyristors by employing a Si/SiC heterojunction gate structure, and the higher the
forward-blocking-voltage is, the smaller the triggering-light intensity is needed for a device with a
rated breakdown voltage. © 2012 IEEE.
Main heading: Silicon carbide
Controlled terms: Heterojunctions - Light - Models - Systems engineering Thyristors
Uncontrolled terms: Gate structure - Heterojunction structures - Light triggered thyristors
- SiC thyristors - Visible light
Classification code: 714.2 Semiconductor Devices and Integrated Circuits - 741.1
Light/Optics - 804.2 Inorganic Compounds - 902.1 Engineering Graphics - 912
Industrial Engineering and Management - 961 Systems Science
DOI: 10.1109/SYSoSE.2012.6333467
Database: Compendex
268.
Title: Visual tracking based on interacting multiple model
Authors: Liu, Xiaoli1 ; Yi, Yingmin2
Author affiliation: 1 Research Institute of Electronic Comprehensive Survey, Ministry of
Information Industry, Xi'an Shaanxi 710054, China
2 Faculty of Automation and Information Engineering, Xi'an University of Technology, Xi'an
Corresponding author: Yi, Y. ([email protected])
Source title: 2011 International Workshop on Engineering Application Research, WEAR 2011
Abbreviated source title: Int. Workshop Eng. Appl. Res., WEAR
Monograph title: 2011 International Workshop on Engineering Application Research, WEAR
2011
Issue date: 2011
Pages: 251-256
Language: English
Conference name: 2011 International Workshop on Engineering Application Research, WEAR
2011
Publisher: Institute of Electronic and Information Technology, Australia
Abstract: In this paper, a visual tracing method based on interacting multiple model (IMM)
algorithm is presented using HSV color model. The moving characteristics of the target are
acquired by means of the filter function of IMM algorithm. The location of the target can be
predicted by IMM algorithm with one-step or N-steps. After the obtaining of the next observation
frame, the target is searched in the predictive area. Thus in this way the search area can be reduced,
the search time be saved and the ability of real-time tracking be increased. This method is used to
search and track the red ball in RoboCup. Experiment results show that the moving target can be
searched quickly and tracked correctly. The moving characteristics of the target can be obtained
with the proposed algorithm. © 2011 Institute of Electronic and Information Technology.
Controlled terms: Condensed matter physics - Engineering - Industrial engineering Surfaces
Uncontrolled terms: Filter function - HSV color models - IMM algorithms Interacting multiple model - Interacting multiple model algorithms - Moving targets Real time tracking - RoboCup - Search area - Search time - Visual tracing Visual Tracking
Classification code: 951 Materials Science - 933 Solid State Physics - 931 Classical
Physics; Quantum Theory; Relativity - 921 Mathematics - 912.1 Industrial Engineering 901 Engineering Profession - 723 Computer Software, Data Handling and Applications
DOI: 10.5813/www.ieit-web.org/IPS.1.69
Database: Compendex
269.
Title: 2D simulation of flow and sludge distribution in a circular secondary clarifier
Authors: Liu, Y.L.1 ; Zhang, P.1 ; Wei, W.I.1
Author affiliation: 1 Institute of Hydraulic Engineering, Xi'an University of Technology, Xi'an,
China
Corresponding author: Liu, Y.L. ([email protected])
Volume: 468-471
Monograph title: Automation Equipment and Systems
Issue date: 2012
Pages: 798-801
Language: English
ISSN: 10226680
ICMSE 2012
Abstract: In this paper, we use solid-liquid two-phase mixture model and the Realizable k-Ε
turbulence model to numerically simulate the advection secondary flow and sludge concentration
distribution in a circular secondary clarifier. The PISO algorithm is used to decouple velocity and
pressure. The velocity field and the sludge concentration distribution are obtained by the proposed
model. © (2012) Trans Tech Publications.
Controlled terms: Industrial applications - Manufacture - Microchannels - Turbulence
models - Velocity
Uncontrolled terms: 2D simulations - PISO algorithm - Secondary clarifier Simulation - Sludge concentration - Sludge distribution - Solid-liquid - Two-phase
mixture models - Velocity field
Classification code: 931.1 Mechanics - 913.4 Manufacturing - 913 Production Planning
and Control; Manufacturing - 723.5 Computer Applications - 631.1 Fluid Flow, General 631 Fluid Flow - 604 Metal Cutting and Machining
Database: Compendex
270.
Title: Simulation of 3D gas-liquid two-phase flow characteristics of carrousel oxidation ditch
Authors: Liu, Y.L.1 ; Lv, B.1 ; Wei, W.L.1
Author affiliation: 1 Institute of Hydraulic Engineering, Xi'An University of Technology, Xi'an,
710048, China
Corresponding author: Liu, Y.L.
Volume: 482-484
Monograph title: Advanced Composite Materials
Issue date: 2012
Pages: 1265-1268
Language: English
ISSN: 10226680
ICMSE 2012
Abstract: In this paper, the gas-liquid two-phase mixture model with the k-Ε turbulence model
was used to numerically simulate the characteristics of an oxidation ditch. The proposed model
concerns with the drag force and the drift velocity. The numerical method is based on a
pressure-correction algorithm of the SIMPLE-type. A multigrid technique based on the full
approximation storage (FAS) scheme is employed to accelerate the numerical convergence, while
the ?-Ε model with wall functions is used. The numerical results for velocity and turbulent kinetic
energy in the oxidation ditch are obtained. © (2012) Trans Tech Publications, Switzerland.
Controlled terms: Computational fluid dynamics - Industrial applications - Liquids Manufacture - Sewage lagoons - Three dimensional computer graphics - Turbulence
models
Uncontrolled terms: CFD simulations - Characteristics - Drag forces - Drift velocities
- Full approximation storages - Gas liquids - Gas-liquid two-phase flow - Multigrid
technique - Numerical convergence - Numerical results - Oxidation ditch Turbulent kinetic energy - Two-phase mixture models - Wall function
and Control; Manufacturing - 931.2 Physical Properties of Gases, Liquids and Solids 902.1 Engineering Graphics - 452.2 Sewage Treatment - 443.1 Atmospheric Properties 723.5 Computer Applications
Database: Compendex
271.
Title: A CFD methodology for solid and liquid flow fields of sedimentation tanks
Authors: Liu, Y.L.1 ; Zheng, Y.1 ; Zhang, P.1 ; Wei, W.L.1
China
Volume: 178-181
Monograph title: Sustainable Environment and Transportation
Issue date: 2012
Pages: 371-375
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854242
Abstract: In this paper, the CFD approach is used to study the solid-liquid two-phase turbulent
flow and sludge concentration distribution in a secondary sedimentation tank. By the simulation,
the velocity and the turbulent kinetic energy and turbulent kinetic energy dissipation rate and solid
distribution in a secondary sedimentation tank are obtained, which shows the simulation model is
an effective method to investigate the flow patterns and their influence on the process inside the
sedimentation vessel. © (2012) Trans Tech Publications, Switzerland.
Main heading: Computational fluid dynamics
Controlled terms: Building materials - Civil engineering - Computer simulation Kinetic energy - Settling tanks - Water treatment
Uncontrolled terms: Liquid flow field - Numerical modelling - Simulation model Sludge concentration - Solid-liquid - Turbulent kinetic energy
Classification code: 931.1 Mechanics - 723.5 Computer Applications - 445.1 Water
Treatment Techniques - 415 Metals, Plastics, Wood and Other Structural Materials - 414
Masonry Materials - 413 Insulating Materials - 412 Concrete - 411 Bituminous
Materials - 409 Civil Engineering, General
Database: Compendex
272.
Title: Large eddy simulation of gas-liquid two-phase flow for a nested type fixed-cone valve
University of Technology, Xi'an, China
Volume: 170-173
Issue date: 2012
Pages: 2458-2463
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: large eddy simulation cooperated with a physical fractional-step method is applied to
simulate steady flow around a nested type fixed-cone valve; and the equations are solved with the
finite volume method. The free fluid surface is simulated by the VOF method. The pressure
contours and vorticity magnitude are obtained. The modeling results conform to physical law, and
show that the large eddy simulation theory has powerful capacity in simulation of microstructures
of turbulent flows, and the function of the nested type fixed-cone valve for energy dissipating is
good. © (2012) Trans Tech Publications, Switzerland.
Main heading: Large eddy simulation
Controlled terms: Building materials - Civil engineering - Finite volume method Models - Turbulence
Uncontrolled terms: Energy dissipating - Flows - Fractional step methods Fractional-step - Free fluids - Gas-liquid two-phase flow - Large eddy - Modeling
results - Physical laws - Pressure contours - VOF method
Classification code: 921.6 Numerical Methods - 921 Mathematics - 902.1 Engineering
Graphics - 631.1 Fluid Flow, General - 631 Fluid Flow - 415 Metals, Plastics, Wood
and Other Structural Materials - 414 Masonry Materials - 413 Insulating Materials 412 Concrete - 411 Bituminous Materials - 409 Civil Engineering, General
Database: Compendex
273.
Title: Research on the shape of oxidation ditch diversion wall
China
Volume: 178-181
Issue date: 2012
Pages: 419-423
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854242
Abstract: Diversion wall can improve bend flow patterns in an oxidation ditch. In this paper, a
non-equal thickness diversion wall was proposed, and studied by numerical simulation method.
The simulated velocity field of the new shape of oxidation ditch diversion wall was compared
with that of the common shape diversion wall under the same boundary conditions, which shows
that the new shape can better improve the bend flow patterns in an oxidation ditch, and reduce the
size of the backflow area and increase the high-velocity region in the channel. © (2012) Trans
Main heading: Sewage lagoons
Controlled terms: Building materials - Civil engineering - Computer simulation Flow fields - Flow patterns - Velocity
Uncontrolled terms: Backflow - High velocity - Non-equal thickness diversion wall Numerical simulation method - Oxidation ditch - Velocity field
Classification code: 723.5 Computer Applications - 631.1 Fluid Flow, General - 452.2
Sewage Treatment - 415 Metals, Plastics, Wood and Other Structural Materials - 931.1
Mechanics - 414 Masonry Materials - 412 Concrete - 411 Bituminous Materials 409 Civil Engineering, General - 413 Insulating Materials
Database: Compendex
274.
Title: Investigation of the submerged depth of aeration impellers in an oxidation ditch by
numerical simulation
China
Volume: 178-181
Issue date: 2012
Pages: 429-432
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854242
Abstract: In this paper, the flow structure of the oxidation ditch was studied using numerical
simulation method and different submerged depth of aeration impellers. The computed velocity
fields were analyzed, which shows that under the same conditions, and by using the optimal
submerged depth the average velocity of the flow in oxidation ditch is increased and the velocity
near-bottom has increased significantly. The results of comparisons show that the velocity
distribution is more uniform along the depth direction, and that the flow velocity distribution
structure can prevent sludge from settling in the oxidation ditch processing system at the
submergence ratio called the optimal submergence ratio, which helps to improve the efficiency of
oxidation ditch sewage treatment system. © (2012) Trans Tech Publications, Switzerland.
Main heading: Sewage lagoons
Controlled terms: Building materials - Civil engineering - Computer simulation Flow fields - Impellers - Optimization - Sewage treatment - Velocity
Uncontrolled terms: Average velocity - Numerical simulation method - Optimal
submerged depth - Oxidation ditch - Processing systems - Velocity field
Classification code: 921.5 Optimization Techniques - 723.5 Computer Applications 631.1 Fluid Flow, General - 601.2 Machine Components - 452.2 Sewage Treatment 931.1 Mechanics - 415 Metals, Plastics, Wood and Other Structural Materials - 413
Engineering, General - 414 Masonry Materials
Database: Compendex
275.
Title: Research on grid generation
Authors: Liu, Y.L.1 ; Bai, Y.1 ; Zhao, X.J.1 ; Wei, W.L.1 ; Ma, K.1
710048, China
Corresponding author: Liu, Y.L.
Volume: 170-173
Issue date: 2012
Pages: 3691-3694
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: A method for orthogonal grid generation is presented. The generating system is based
on solution of a system of partial differential equations with finite difference discretization. The
influence of the number of grid points, type of boundary, and intensity of the grid quality control
function and grid properties are investigated. Specification of both boundary point distribution on
all sides is used. The proposed method is applied to various test problems, which shows this
method provides a good balance between controlling grid orthogonality and cell aspect ratio. ©
(2012) Trans Tech Publications, Switzerland.
Main heading: Mesh generation
Controlled terms: Aspect ratio - Building materials - Civil engineering - Partial
differential equations
Uncontrolled terms: Boundary points - Control functions - Finite difference Finite-difference discretization - Generating system - Grid generation - Grid quality Number of Grids - Orthogonal grid - Orthogonality - Test problem
Classification code: 943 Mechanical and Miscellaneous Measuring Instruments - 921.4
Combinatorial Mathematics, Includes Graph Theory, Set Theory - 921.2 Calculus - 415
Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 413
Engineering, General
Database: Compendex
276.
Title: Two-dimensional orthogonal grid generation
Authors: Liu, Y.L.1 ; Bai, K.1 ; Wang, Xi2 ; Liu, Mingqin3
China
2 School of Software and Microelectronics, North Western Polytechnical University, Xi'an,
China
3 Equipment Transportation Department, Engineering College of Armed Police Force, Xi'an,
China
Volume: 468-471
Issue date: 2012
Pages: 2668-2671
Language: English
ISSN: 10226680
ICMSE 2012
Abstract: A method for nearly orthogonal grid generation is presented in this study. The
generating system is based on solution of a system of partial differential equations with finite
difference discretization. The grid quality control functions and grid properties are investigated.
Specification of both boundary point distribution on all sides is used. The proposed method is
applied to various test problems, which shows this method provides a good balance between
controlling grid orthogonality and cell aspect ratio. © (2012) Trans Tech Publications.
Main heading: Mesh generation
Controlled terms: Aspect ratio - Manufacture - Partial differential equations
Uncontrolled terms: Boundary points - Control functions - Finite difference Finite-difference discretization - Generating system - Grid quality - Orthogonal grid Orthogonality - Test problem
Classification code: 537.1 Heat Treatment Processes - 921.2 Calculus - 921.4
Combinatorial Mathematics, Includes Graph Theory, Set Theory - 943 Mechanical and
Miscellaneous Measuring Instruments
Database: Compendex
277.
Title: High- resolution numerical model for dam-break flow in an L-shaped channel
Authors: Liu, Y.L.1 ; Wei, W.L.1
Author affiliation: 1 Institute of Hydraulic Engineering, Xi'An University of Technology, Xi'an,
China
Volume: 482-484
Monograph title: Advanced Composite Materials
Issue date: 2012
Pages: 679-683
Language: English
ISSN: 10226680
ICMSE 2012
Abstract: A high-resolution numerical model for dam-break flow in an L-shaped channel was
presented based on using the two-step finite-volume component-wise TVD (total variation
diminishing) scheme, by which second-order accuracy in both time and space is achieved.
Numerical simulation for open L-shaped channel flow was implemented, and velocity and water
surface were obtained. © (2012) Trans Tech Publications, Switzerland.
Main heading: Hydraulic structures
Controlled terms: Computer simulation - Finite volume method - Manufacture Numerical models
Uncontrolled terms: Componentwise - Dam-break flow - Finite-volume - High
resolution - L-shaped - Second-order accuracy - Total variation diminishing - TVD
scheme - Water surface
Classification code: 441 Dams and Reservoirs; Hydro Development - 537.1 Heat Treatment
Processes - 611 Hydroelectric and Tidal Power Plants - 723.5 Computer Applications 921 Mathematics - 921.6 Numerical Methods
Database: Compendex
278.
Title: Optimize and analysis of fiber optic gyroscope combination bracket based on redundancy
design
Authors: Liu, Ying1, 2 ; Zhao, Xiaodong2 ; Li, Yan3 ; Xu, Jintao2
Author affiliation: 1 School of Automation, Xi'an University of Post and Telecommunications,
Xi'an 710121, China
2 State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and
Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
Xi'an 710048, China
Corresponding author: Liu, Y. ([email protected])
Volume: 41
Issue: 6
Pages: 1556-1560
Language: Chinese
ISSN: 10072276
Abstract: In view of the domestic research status of fiber optic gyroscope, a new combination of
fiber optic gyroscopes bracket was designed based on the redundancy design scheme in order to
meet the requirements of inertial navigation system which used the high accuracy and high
reliability fiber optic gyroscopes. The Ansys finite element software was used to analyze the
dynamics characteristic of the bracket. And the bracket was optimized based on the result of the
modal analysis and frequency response analysis. After optimizing the bracket lighted 43%, and
avoided resonance in the work frequency band of 0-2000 Hz, the acceleration response amplitude
reduced significantly, and the response of deformation were less than 10-7, which could improve
the dynamic characteristics of the bracket and laid a good foundation for raising the accuracy and
reliability of inertial navigation system.
Main heading: Redundancy
Controlled terms: Computer software - Design - Finite element method - Frequency
bands - Gyroscopes - Inertial navigation systems - Modal analysis - Optimization
Uncontrolled terms: Acceleration response - Domestic research - Dynamic
characteristics - Dynamics analysis - Dynamics characteristic - Fiber optic gyroscopes
- Finite Element - Finite element software - Frequency response analysis - High
reliability - Redundancy design - Work frequency
Classification code: 921 Mathematics - 914 Safety Engineering - 903 Information
Science - 943.1 Mechanical Instruments - 723 Computer Software, Data Handling and
Applications - 431.5 Air Navigation and Traffic Control - 408 Structural Design - 716.4
Television Systems and Equipment
Database: Compendex
279.
Title: Process parameters modeling and optimizing for compound machining with ultrasonic
vibration on sic wafer
Authors: Liu, Yong1 ; Li, Shujuan1 ; Li, Yan1 ; Wan, Bo1
Corresponding author: Liu, Y. ([email protected])
Volume: 217-219
Monograph title: Advanced Materials and Process Technology
Issue date: 2012
Pages: 1520-1525
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037855027
Abstract: Since it is difficult for ultrasonic vibration compound machining to get effective
cutting mechanism mathematical model through dynamic analysis, and testing study is shown an
effective method to solve this problem. Central Composite Design (CCD) testing was used to
carry out following researches. Second-order relational model was established between tangential
cutting force, surface roughness, and their main technological factors involved in SiC wafer
vibration compound machining. Constraints of actual processing conditions on technological
factors were discussed. Optimized target function was established to enhance processing
efficiency of SiC wafer, which meant taking maximized sawing force as target. Particle Swarm
Optimization (PSO) algorithm was designed to solve the issue, and obtain optimized process
parameters meeting kinds of constraints. © (2012) Trans Tech Publications, Switzerland.
Controlled terms: Mathematical models - Particle swarm optimization (PSO) - Silicon
carbide - Surface roughness - Ultrasonic effects - Ultrasonic waves
Uncontrolled terms: Central composite designs - Cutting mechanisms - Optimized
process - Particle swarm optimization algorithm - Process parameters - Processing
condition - Relational Model - Second orders - SiC wafer - Tangential cutting force
- Target functions - Technological factors - Testing study - Ultrasonic vibration
Classification code: 408 Structural Design - 723 Computer Software, Data Handling and
Applications - 753.1 Ultrasonic Waves - 804.2 Inorganic Compounds - 921
Mathematics - 931.2 Physical Properties of Gases, Liquids and Solids
Database: Compendex
280.
Title: The process of organization and dynamic of evolution of tacit knowledge on innovation
talents' growth research
Authors: Liu, Zeshuang1 ; Han, Xinxin1
Author affiliation: 1 School of Economy and Management, Xi'an University of Technology,
Xi'an, Shaan Xi, 710054, China
Corresponding author: Liu, Z. ([email protected])
Volume: 141 AISC
Monograph title: Advances in Computational Environment Science - Selected Papers from 2012
International Conference on Environment Science, ICES 2012
Issue date: 2012
Pages: 177-184
Language: English
ISSN: 18675662
ISBN-13: 9783642279560
Conference name: 2012 International Conference on Environment Science, ICES 2012
Sponsor: Springer
Abstract: The purpose of this paper is to control the process of tacit innovative talents'
knowledge organization by sharing tacit knowledge in the organization. This study constructed
organization of tacit knowledge mechanism model of innovative talents on the base of the SECI
mode, and then used the method of system dynamics to establish differential dynamic model of
innovative talents' tacit knowledge sharing in the enterprise. Finally, determine the threshold
whether the creative talents' tacit knowledge can be organization or not, and discuss the control
parameters which effects the creative talents' tacit knowledge. © 2012 Springer-Verlag GmbH.
Main heading: Innovation
Controlled terms: Knowledge management - Societies and institutions
Uncontrolled terms: Control parameters - Innovative talents - Knowledge organization
- Mechanism model - System Dynamics - Tacit knowledge
Classification code: 723.5 Computer Applications - 901.1.1 Societies and Institutions 912 Industrial Engineering and Management
DOI: 10.1007/978-3-642-27957-7_22
Database: Compendex
281.
Title: High power and high-longevity GaAs photoconductive semiconductor switches
Authors: Liu, Zheng1 ; Shi, Wei1 ; Li, Xiaolong1 ; Zhang, Zhenzhen1
Author affiliation: 1 Applied Physics Department, Xi'an University of Technology, 5 South
Jinhua Road, Xi'an 710048, China
Corresponding author: Liu, Z.
Source title: 2008 17th International Conference on High Power Particle Beams, BEAMS'08
Abbreviated source title: Int. Conf. High Power Part. Beams, BEAMS
Monograph title: 2008 17th International Conference on High Power Particle Beams,
BEAMS'08
Issue date: 2008
Language: English
Conference name: 17th International Conference on High Power Particle Beams, BEAMS'08
Sponsor: Chinese Pulsed Power Society; Chinese Particle Accelerator Society
United States
Abstract: A 14mm photoconductive semiconductor switch (PCSS) is excited at 20kV/400A, and
the longevity is up to 350 shots. After 350 shots, the dark resistances decreases, and the biased
voltage can not be increased to 20 kV again. The breakdown mechanism and the cause of the dark
resistances decrease of the PCSS is analyzed based on the breakdown characteristics. © 2008
Institute of Fluid Physics, C.
Main heading: Photoconductive switches
Controlled terms: Particle beams
Uncontrolled terms: Biased voltage - Breakdown characteristics - Breakdown
mechanism - GaAs - High-power - Photoconductive semiconductor switches
Classification code: 714.2 Semiconductor Devices and Integrated Circuits - 932.1 High
Energy Physics
Database: Compendex
282.
Title: Passive forensics method to detect tampering for double JPEG compression image
Authors: Liu, Zhenli1 ; Wang, Xiaofeng1 ; Chen, Jing2
Author affiliation: 1 Xi'an University of Technology, No.5, South Jinhua Road, Xi'an, Shaanxi,
710048, China
2 Xi'an University of Architecture and Technology, No.13, Yanta Road, Xi'an, Shaanxi, 710055,
China
Corresponding author: Wang, X. ([email protected])
Source title: Proceedings - 2011 IEEE InternationalSymposium on Multimedia, ISM 2011
Abbreviated source title: Proc. - IEEE Int.Symp. Multimedia, ISM
Monograph title: Proceedings - 2011 IEEE InternationalSymposium on Multimedia, ISM 2011
Issue date: 2011
Pages: 185-189
Language: English
ISBN-13: 9780769545899
Conference name: 13th IEEE International Symposium on Multimedia, ISM 2011
Conference location: Dana Point, CA, United states
United States
Abstract: A passive forensics method to detect tampering for double JPEG compression image is
proposed. In the proposed method, inconsistency of quality factors is used to detect double JPEG
compression, and then a passive forensics approach to detect tampering and locate tampered area
for tampered JPEG images is proposed. Comparing with existing methods, the main advantages of
the proposed method are as follows: (1) It can detect rotation, scaling and tampering in small area.
(2) It has a high computing efficiency. © 2011 IEEE.
Uncontrolled terms: 8-neighborhood method - Computing efficiency - distortion degree
- JPEG artifact - JPEG compression - JPEG image - K-means clustering - Quality
factors - Small area
DOI: 10.1109/ISM.2011.37
Database: Compendex
283.
Title: New padding algorithm for object-based coding
Authors: Long, Liu1 ; Zhanhui, Wang2 ; Qijun, Song3 ; Haiyan, Zhou4
Author affiliation: 1 School of Xi'an University of Technology, Xi'an, China
2 School of Naval University of Engineering, Wuhan, China
3 China Electronic Systems Engineering Corporation, Beijing, China
4 Xinjiang Oilfiled Company Exploration and Development Research Institute, Xinjiang, China
Corresponding author: Long, L.
Source title: Proceedings - 4th International Congress on Image and Signal Processing, CISP
2011
Abbreviated source title: Proc. - Int. Congr. Image Signal Process., CISP
Volume: 1
Monograph title: Proceedings - 4th International Congress on Image and Signal Processing,
CISP 2011
Issue date: 2011
Pages: 556-559
Language: English
ISBN-13: 9781424493067
Conference name: 4th International Congress on Image and Signal Processing, CISP 2011
Sponsor: Donghua University
United States
Abstract: The boundary macroblock padding is one key technology of MPEG-4 codes. In
MPEG-4, the repetitive padding algorithm does not make use of the trend of pixel value variation
often near object boundaries in padding the exterior pixels of reference video object. In this paper,
in order to improve performance of MPEG-4 coder, a linear padding for MPEG-4 motion
estimation is proposed to reduce prediction errors and improve compression efficiency. In our test,
the different video rate distortion curves verify that the proposed algorithm get the higher PSNR
(0.4∼2.5 dB) than the repetitive padding scheme does at different bit rate. © 2011 IEEE.
Main heading: Motion Picture Experts Group standards
Controlled terms: Algorithms - Codes (symbols) - Image coding - Image
compression - Motion estimation - Pixels - Signal processing
Uncontrolled terms: Bit rates - Compression efficiency - Key technologies - Macro
block - Motion estimati - MPEG-4 - Object based coding - Object boundaries Padding - Padding scheme
- Pixel values - Prediction errors - Video objects Video rates
Classification code: 716.1 Information Theory and Signal Processing - 723 Computer
Software, Data Handling and Applications - 921 Mathematics
DOI: 10.1109/CISP.2011.6099991
Database: Compendex
284.
Title: Adaptive controller for parallel mechanism based on stability
Authors: Lu, Kaijiang1, 2 ; Shi, Junping1 ; Dan, Bochou2
2 Electromechanical Engineering Department, Baoji University of Arts and Sciences, Baoji
721016, China
Corresponding author: Lu, K. ([email protected])
Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural
Machinery
Abbreviated source title: Nongye Jixie Xuebao
Volume: 43
Issue: 1
Pages: 202-207
Language: Chinese
ISSN: 10001298
CODEN: NUYCA3
Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai,
Abstract: The strategy was proposed based on model and reference to adaptive control according
to the properties of parameter variations and unpredictable, un-modeled error in parallel
mechanism. Parameter variations and un-modeled error of mechanism system were treated as a
disturbance to the practical system, an ideal reference model was established, and adaptive
feedback rule was constructed depend on system status and the error. The adaptive control rule
was derived by stability theory, and the practical mechanism had the same dynamic characteristics
as parameter model. Example showed that adaptive controller could effectively restrain motion
error which caused by parameter variations and un-modeled error, the mechanism has high
tracking precision to planed target movement.
Main heading: Model reference adaptive control
Controlled terms: Control theory - Controllers - Convergence of numerical methods Mechanisms
Uncontrolled terms: Adaptive Control - Adaptive controllers - Adaptive feedback Dynamic characteristics - Motion errors - Parallel mechanisms - Parameter model Parameter variation - Practical systems - Reference models - Stability theories System status - Target movements - Tracking precision
Classification code: 601.3 Mechanisms - 731.1 Control Systems - 732.1 Control
Equipment - 921.6 Numerical Methods
DOI: 10.6041/j.issn.1000-1298.2012.01.036
Database: Compendex
285.
Title: Qualification of multifractal features of three-dimensional geomorphology in Chabagou
catchment
Authors: Lu, Kexin1 ; Wang, Min2 ; Li, Zhanbin1 ; Cui, Lingzhou3
Author affiliation: 1 Key Lab. of Northwest Water Resources and Environment Ecology of
MOE, Xi'an University of Technology, Xi'an 710048, China
2 Henan Investigation and Design Institute of Water Conservancy, Zhengzhou 450016, China
3 School of Life and Environmental Science, Wenzhou University, Wenzhou 325027, China
Corresponding author: Lu, K. ([email protected])
Engineering
Volume: 28
Issue: 18
Pages: 248-254
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: Quantifying three-dimensional geomorphology feature of watershed synthetically and
scientifically is one of key problems in the fields of geomorphology and watershed soil erosion
prediction model. According to the obvious anisotropy and three-dimensional characteristics of
watershed feature, based on multifractal theory, the GIS-based qualification model and its
realization method of multifractal spectrums of watershed three-dimensional geomorphology was
established firstly in the paper. Based on the established model and DEM data of study watersheds,
multifractal spectrums and its main parameters of watershed three-dimensional geomorphology of
seven typical sub-watersheds in Chabagou watershed were calculated and analyzed, and the
multifractal features of watershed three-dimensional geomorphology of the seven study
sub-watersheds and geomorphologic meanings of multifractal spectrums and its main parameters
were studied finally. The results indicated that: 1) the qualification model established in the paper
could be used to realize direct qualification of multifractal spectrums and its main parameters of
watershed three-dimensional geomorphology; 2) the three-dimensional geomorphologies of the
five sub-watersheds had significant multifractal features; 3) the multifractal spectrum and its main
parameters could express the total three-dimensional geomorphologic characteristics of a
watershed more sensitively and comprehensively than the simple fractal, and could scientifically
represent and emphasize inner fine structure and abnormity partial variations of watershed
three-dimensional geomorphology. The results in the paper provide a new approach and thought
for synthetical and scientifical qualification of watershed three-dimensional geomorphology.
Controlled terms: Catchments - Fractals - Geographic information systems Geomorphology - Landforms - Models - Watersheds
Uncontrolled terms: Dem datum - Fine structures - Main parameters - Multi fractals
- Multi-fractal spectrum - Multifractal theory - Qualification model - Realization
method - Soil erosion - Three-dimensional characteristics - Watershed features
Classification code: 921 Mathematics - 902.1 Engineering Graphics - 723.3 Database
Systems - 481.1.1 Geomorphology - 481.1 Geology - 444.1 Surface Water - 444
Water Resources
DOI: 10.3969/j.issn.1002-6819.2012.18.035
Database: Compendex
286.
Title: Semi-supervised discriminative orthogonal locality preserving projections for face
recognition
Authors: Lü, Lintao1 ; Fang, Bei1 ; Zhao, Minghua1 ; Lü, Hui2
Author affiliation: 1 School of Computer Science and Enginnering, Xi'An University of
2 School of Civil Engineering, Chongqing University, Chongqing 400030, China
Corresponding author: Lü, L. ([email protected])
Volume: 114
Monograph title: Software Engineering and Knowledge Engineering: Theory and Practice:
Volume 1
Issue date: 2012
Pages: 513-521
Language: English
ISSN: 18675662
ISBN-13: 9783642037177
Abstract: Locality Preserving Projections (LPP) has been a popular method for feature
extraction techniques. However, when applied to classification problems in a supervised setting,
LPP only focuses on the intraclass geometrical information while ignores the interaction of
samples from different classes. To enhance the performance of LPP in classification, a new
algorithm termed as Semi-supervised Discriminative Orthogonal locality preserving projections
(SDOLPP) is proposed in this paper. SDOLPP takes into account the labeled and unlabeled
samples, changes the objective function, and then orthogonalizes the basis vectors of the face
subspace. The proposed method was compared with LPP, DOLPP and SLPP on the AR and YaleB
face databases. Experimental results verify the performance of the proposed approach. ©
Springer-Verlag Berlin Heidelberg 2012.
Main heading: Face recognition
Controlled terms: Feature extraction - Knowledge engineering - Software engineering
Uncontrolled terms: Basis vector - Dimensionality reduction - Face database -
Feature extraction techniques - Geometrical informations - Locality preserving projections
- Objective functions - Semi-supervised - Unlabeled samples
Classification code: 716 Telecommunication; Radar, Radio and Television - 723.1 Computer
Programming - 723.4 Artificial Intelligence
DOI: 10.1007/978-3-642-03718-4_64
Database: Compendex
287.
Title: A novel background subtraction method for moving vehicle detection
Authors: Lu, Xiaofeng1, 2 ; Izumi, Takashi1 ; Teng, Lin1 ; Horie, Tadahiro1 ; Wang, Lei2
Author affiliation: 1 Graduate School of Science and Technology, Nihon University, 7-24-1,
Narashinodai, Funabashi, Chiba 274-8501, Japan
2 Faculty of Computer Science and Engineering, Xi'An University of Technology, Xi'an,
Corresponding author: Izumi, T. ([email protected])
Source title: IEEJ Transactions on Fundamentals and Materials
Abbreviated source title: IEEJ Trans. Fundam. Mater.
Volume: 132
Issue: 10
Monograph title: Fabrication and Evaluation of Nanoscale Magnetic Materials with New
Functionality / Instrumentation and Measurement Technology Supporting Technological
Innovation
Issue date: 2012
Pages: 857-863
Language: English
ISSN: 03854205
E-ISSN: 13475533
Publisher: Institute of Electrical Engineers of Japan, 1-12-1 Yurakucho, Chiyoda-ku, Tokyo, 100,
Japan
Abstract: Background subtraction is a method typically used to segment moving vehicles in
image sequences taken from a static camera by comparing each new frame with a model of the
background scene. This paper presents a robust background subtraction algorithm which reduces
the influence of illumination changes and shadows and adapts to rapid changes in the traffic scene.
A statistical background modeling method is presented, which is based on a histogram at the pixel
level and produces a color model from a series of frames. For foreground detection, we propose
the Choquet integral to fuse the three color-component similarity measures and a texture similarity
measure based on a uniform local binary pattern. Finally, we propose a new adaptive background
maintenance method. The experimental results for several dataset videos show that the proposed
method is more efficient, robust, and accurate than classical approaches. © 2012 The Institute of
Electrical Engineers of Japan.
Main heading: Automobile manufacture
Controlled terms: Integral equations - Magnetic materials - Maintenance - Models
Uncontrolled terms: Background maintenance - Background modeling - Background
subtraction - Choquet integral - Foreground detection
Classification code: 662.1 Automobiles - 708.4 Magnetic Materials - 902.1 Engineering
Graphics - 913.5 Maintenance - 921.2 Calculus
DOI: 10.1541/ieejfms.132.857
Database: Compendex
288.
Title: Nonlinear dynamic analysis of a rotor system with fixed-tilting-pad self-acting
gas-lubricated bearings support
Authors: Lu, Yanjun1 ; Zhang, Yongfang3 ; Shi, Xiaolei4 ; Wang, Weimin5 ; Yu, Lie2, 5
2 State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044,
China
3 School of Printing and Packaging Engineering, Xi'an University of Technology, Xi'an, Shaanxi
710048, China
4 Building Machinery Co., XCMG Construction Machinery Co., Ltd., Xuzhou, Jiangsu 221004,
China
5 Institute of Mechatronics and Information Systems, Xi'an Jiaotong University, Xi'an, Shaanxi
710049, China
Corresponding author: Lu, Y. ([email protected])
Source title: Nonlinear Dynamics
Abbreviated source title: Nonlinear Dyn
Volume: 69
Issue: 3
Pages: 877-890
Language: English
ISSN: 0924090X
CODEN: NODYES
Abstract: Based on the nonlinear theory, the unbalanced responses of a fixed-tilting-pad
gas-lubricated journal bearing-rigid rotor system are investigated. A time-dependent mathematical
model is established to describe the pressure distribution of gas-lubricated journal bearing with
nonlinearity. The rigid rotor supported by a fixed-tilting-pad self-acting gas-lubricated journal
bearing is modeled. The differential transformation method has been employed to solve the
timedependent gas-lubricated Reynolds equation, and the dynamic motion equation has been
solved by the direct integral method. The unbalanced responses of the rotor system supported by
fixed-tilting-pad gaslubricated journal bearings are analyzed by the orbit diagram, Poincare´map,
time series, and spectrum diagram. The numerical results reveal periodic, period-3, and
quasiperiodic motions of nonlinear behaviors of the system. Finally, the effects of pivot ratio and
preload coefficient on the nonlinear dynamic characteristics of the fixed-tilting-pad self-acting
gaslubricated journal bearing-rotor system are investigated. © Springer Science+Business Media
B.V. 2011.
Main heading: Gas lubricated bearings
Controlled terms: Bifurcation (mathematics) - Gases - Journal bearings - Lubrication
- Mathematical models - Reynolds equation - Rigid rotors
Uncontrolled terms: Bearing-rotor system - Differential transformation methods - Direct
integral method - Non-linear theory - Non-Linearity - Nonlinear - Nonlinear
behavior - Nonlinear dynamic characteristics - Numerical results - Poincare - Pre
loads - Quasi-periodic motion - Rotor systems - Spectrum diagram Time-dependent - Unbalanced response
Classification code: 601.2 Machine Components - 607.2 Lubrication - 921 Mathematics
- 921.2 Calculus - 931.2 Physical Properties of Gases, Liquids and Solids
DOI: 10.1007/s11071-011-0310-1
Database: Compendex
289.
Title: Fabrication of Ti3AlC2 by reactive sintering and its friction and wear behavior
Authors: Lü, Zhenlin1 ; Liu, Jingge1 ; Xiao, Qidan1 ; Wang, Bin1
Source title: Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Abbreviated source title: Kuei Suan Jen Hsueh Pao
Volume: 40
Issue: 4
Pages: 503-506
Language: Chinese
ISSN: 04545648
CODEN: KSYHA5
Abstract: A ceramic material of Ti3AlC2 was sintered with Ti, Al and C powders as raw
materials by a reaction sintering technology. Effect of process parameters on the physical
properties of the ceramic material was investigated. The friction and wear behavior of the prepared
material was analyzed. The results demonstrate that Ti3AlC2ceramic material with a high density
is fabricated by the reactive sintering at a molar ratio of Ti/Al/C of 3.0:1.2:2.0 and 1300°C for 0.5
h. The content of Ti3AlC2in the material was 94.6%, and the porosity was only 9.4%. The content
of Ti3AlC2 was lower at a lower sintering temperature. A higher sintering temperature could lead
the material to be composed. The main wear mechanism at a lower load was an abrasive wear that
was caused by the shedding of Ti3AlC2 particles and the rheologic behavior of worn surface. The
wear mechanism at a higher load was scratch and slight adhesive wear.
Main heading: Sintering
Controlled terms: Ceramic materials - Friction - Tribology - Wear of materials
Uncontrolled terms: Adhesive wears - Friction and wear behaviors - Friction coefficients
- High density - Higher loads - Lower sintering temperatures - Molar ratio Process parameters - Reaction sintering - Reactive sintering
- Sintering temperatures
- Wear mechanisms - Wear rates - Worn surface
Ceramics - 812.2 Refractories - 931 Classical Physics; Quantum Theory; Relativity 931.1 Mechanics - 951 Materials Science
DOI: CNKI:11-2310/TQ.20120331.1118.006
Database: Compendex
290.
Title: Structural damage evolution and constitutive relation of loess under coupling of stress and
moisture
Authors: Luo, Aizhong1, 2 ; Shao, Shengjun1
2 School of Architecture Engineering, Bijie University, Bijie, Guizhou 551700, China
Corresponding author: Luo, A. ([email protected])
Engineering
Volume: 31
Issue: 4
Pages: 841-847
Language: Chinese
ISSN: 10006915
CODEN: YLGXF5
Abstract: In order to study the deformation of destructured loess induced by structural damage
under coupling of stress and moisture, the macromechanics reflection of structured loess is
analyzed, which is induced by structural damage development, by analyzing the deformation of
structured loess under compression tests and triaxial tests. The analysis result shows that water
content increasing, consolidation pressures increasing, and shearing would cause structural
damage of loess. With the water content increasing, structural damage of loess is more prominent
by compression and shearing. When consolidation pressures are much larger, structural damage of
intact loess by compression and shearing is significant, and the secondary structure and
shearing-compression are increasing. Based on structural parameter proposed by comparing with
the stress ratios of intact loess and saturated remolded loess during triaxial experiments, and
utilizing the stress ratio damage equation and strain damage equation, the structural damage
evolution equation is proposed by regarding structural damage loess as complex materials
composed of intact loess and destructured loess. Based on the intact loess following Hooke's law
and normal consolidation loess following modified Cambridge model, the elastoplastic damage
constitutive equation is proposed by regarding deformation of destructured loess as elastic
deformation of intact loess and elastoplastic deformation of normal consolidation loess.
Meanwhile, the rationality of constitutive relationship is tested and verified by comparing and
analyzing test curves under different moistures and theoretical curves described by the
elastoplastic constitutive model proposed in this paper.
Main heading: Moisture
Controlled terms: Compression testing - Deformation - Elastoplasticity - Shearing Soil mechanics
Uncontrolled terms: Complex materials - Compression tests - Consolidation pressure Constitutive relations - Constitutive relationships - Elasto-plastic damage Elastoplastic constitutive model - Elastoplastic deformation - Hooke's Law - Loess Macro-mechanics - Modified Cambridge model - Secondary structures - Stress ratio Structural damages - Structural parameter - Triaxial test
Classification code: 421 Strength of Building Materials; Mechanical Properties - 422
Strength of Building Materials; Test Equipment and Methods - 483.1 Soils and Soil Mechanics
- 604.1 Metal Cutting - 801.4 Physical Chemistry - 943 Mechanical and Miscellaneous
Measuring Instruments
Database: Compendex
291.
Title: Singular data restoration for hydraulic generator fault based on EMD-wavelet analysis
Authors: Luo, Xingqi1 ; Xue, Yangang1 ; Wang, Han1
Corresponding author: Luo, X. ([email protected])
Volume: 31
Issue: 2
Pages: 245-250
Language: Chinese
ISSN: 10031243
Abstract: State-monitoring data of a hydraulic generator under the factors of sensor,
measurement condition and environment are often distorted and singular data are generated.
Wavelet transform is an effective way to correctly detect signal singularity. This paper develops a
method combining mode decomposition and wavelet transform. In this method, singular signal is
detected by wavelet transform, then the singular points are removed and new data are
reconstructed using the signal details and certain approximate coefficients. Simulation results
show a good agreement of the reconstructed signal with the original one. The proposed EMD
wavelet analysis on monitoring data has a practical value and it is vital to fault recognition and
description of hydraulic generator state.
Main heading: Monitoring
Controlled terms: Failure analysis - Instruments - Wavelet analysis - Wavelet
transforms
Uncontrolled terms: Empirical Mode Decomposition - Fault recognition - Fault-based Hydraulic generator - Measurement conditions - Mode decomposition - Signal process
- Singular data - Singular points - Singularity
Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric
and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments 921.3 Mathematical Transformations - 921 Mathematics - 421 Strength of Building
Database: Compendex
292.
Title: 3D numerical simulation of hydraulics in an oxidation ditch
Authors: Lv, B.1 ; Wei, W.L.1 ; Liu, Y.L.1
710048, China
Corresponding author: Lv, B.
Volume: 468-471
Issue date: 2012
Pages: 190-193
Language: English
ISSN: 10226680
ICMSE 2012
Abstract: A numerical simulation study of the hydrodynamics of an oxidation ditch is presented.
The numerical method is based on a pressure-correction algorithm of the SIMPLE-type. A
multigrid technique based on the full approximation storage (FAS) scheme is employed to
accelerate the numerical convergence, while as a turbulence model the RNG κ-Ε model with wall
functions is used. The numerical results for velocity in the oxidation ditch are obtained. © (2012)
Trans Tech Publications.
Controlled terms: Hydrodynamics - Manufacture - Sewage lagoons - Turbulence
models
Uncontrolled terms: 3-D numerical simulation - CFD simulations - Full approximation
storages - Hydrodynamics (general) - Multigrid technique - Numerical convergence Numerical results - Numerical simulation studies - Oxidation ditch - Wall function
Classification code: 443.1 Atmospheric Properties - 452.2 Sewage Treatment - 537.1
Heat Treatment Processes - 631.2 Hydrodynamics - 723.5 Computer Applications
Database: Compendex
293.
Title: Evolution modes and EMD gray self-memory model of the Yellow River water resources
Authors: Lv, Jiqiang1 ; Shen, Bing1 ; Shao, Nianhua1 ; Dong, Kepeng2 ; Li, Kangbin1
Author affiliation: 1 Key Lab. of Northwest Water Resources and Environmental Ecology of
MOE at XAUT, Xi'an 710048, China
2 Hotan Survey Bureau of Hydrology and Water Resources, Xinjiang Hotan 848000, China
Corresponding author: Lv, J. ([email protected])
Volume: 31
Issue: 3
Pages: 25-30
Language: Chinese
ISSN: 10031243
Abstract: To better understand the evolution modes and self-memory characteristics of the
Yellow River annual runoff, a gray self-memory prediction model is developed by using empirical
mode decomposition theory. A auto-correlation function is adopted to define the backdate orders
of this model to improve its accuracy. The results show that the runoff series at Huayuankou gauge
can be decomposed into seven intrinsic mode functions (IMF) and a tendency function. Since
1965 the evolution modes and periodicity of runoff series has changed under the influences by
water resources development and climate change in this river basin. © right.
Controlled terms: Climate change - Rivers - Runoff - Signal processing
Uncontrolled terms: Annual runoff - Autocorrelation functions - Empirical Mode
Decomposition - Hydrology and water resource - Intrinsic Mode functions - Prediction
model - River basins - Water resources development - Yellow river
Classification code: 444 Water Resources - 444.1 Surface Water - 451 Air Pollution 716.1 Information Theory and Signal Processing
Database: Compendex
294.
Title: A semi-fragile watermarking scheme for image tamper localization and recovery
Authors: Lv, Lintao1 ; Fan, Hua1 ; Wang, Jinfeng1 ; Yang, Yuxiang2
Technology, 710048, China
2 School of Mechanical Instrumental Engineering, Xi'an University of Technology, 710048,
China
Corresponding author: Lv, L. ([email protected])
Source title: Journal of Theoretical and Applied Information Technology
Abbreviated source title: J. Theor. Appl. Inf. Technol.
Volume: 42
Issue: 2
Pages: 287-291
Language: English
ISSN: 19928645
E-ISSN: 18173195
Publisher: Little Lion Scientific, Qadri Plaza, Office No.9, New Mal, Kuri Road, Opposite,
Shahzad Town, Islamabad, 45500, Pakistan
Abstract: A novel semi-fragile watermarking scheme for Image tamper localization and recovery
is proposed. The Logistic map is used to encrypt the feature extracted from the original image,
then the generated watermark is embedded into the middle-frequency DCT coefficients of each
block after being ordered in zigzag manner based on invariance properties of DCT coefficients
before and after JPEG compressions. As for authentication, firstly, the feature information is
extracted after decryption, and compared it with reconstructed feature information, then, the
tamper matrix is generated. Finally, recover the invalid blocks by using bicubic interpolation.
Experimental results illustrate that the watermarked image has good imperceptibility and can
tolerate the common content-preserving image processing. It is also sensitive to malicious
manipulations and can localize and recover tampered regions approximately. © 2005 - 2012
JATIT & LLS.
Controlled terms: Authentication - Cryptography - Image compression - Recovery Watermarking
Uncontrolled terms: Bicubic interpolation - DCT coefficients - Feature information Image authentication - JPEG compression - Logistic maps - Original images Semi-fragile - Semi-fragile watermarking - Tamper localization - Watermarked
images
Classification code: 531 Metallurgy and Metallography - 723 Computer Software, Data
Handling and Applications - 723.2 Data Processing and Image Processing - 811.1.1
Papermaking Processes
Database: Compendex
295.
Title: Research of grid-side converter proportional-resonant with feed-forward control strategy
for variable-speed constant-frequency wind power generator system
Authors: Ma, Haomiao1, 2 ; Gao, Yong1 ; Yang, Yuan1
2 School of Computer Science, Shanxi Normal University, Xi'an 710062, China
Corresponding author: Ma, H. ([email protected])
Source title: Taiyangneng Xuebao/Acta Energiae Solaris Sinica
Abbreviated source title: Taiyangneng Xuebao
Volume: 33
Issue: 10
Pages: 1702-1709
Language: Chinese
ISSN: 02540096
CODEN: TYNPDG
Abstract: Proportional-resonant control with high precision and simple algorithm was applied to
the grid side converter for variable-speed constant-frequency wind power generator system, but its
stability is easy to be disturbed by load and grid voltage disturbance. Under this condition, based
on the analysis of proportional resonant control algorithm structure of grid side converter, an
improved feed-forward control strategy including the information of both grid voltage and rotor
current differential signal was proposed according to the input and output power balance
relationship. Power balance between the input and output can be maintained by adjusting rotor
current differential signal. Compared to conventional proportional-resonant control, the robustness
of the grid side converter to the disturbance of both grid voltage and rotor converter load was
improved by the proposed control strategy, and the dynamic performance of the system was also
be greatly enhanced. Simulation and experiment results verify the correctness and effectiveness of
the proposed control strategy.
Main heading: Electric power transmission networks
Controlled terms: Algorithms - Rotors (windings) - Wind power
Uncontrolled terms: Control strategies - Dynamic performance - Grid voltage Grid-side converter - High precision - Input and outputs - Power balance Proportional-resonant (PR) - Proportional-resonant controls - Rotor current - SIMPLE
algorithm - Variable speed constant frequency
Classification code: 615.8 Wind Power (Before 1993, use code 611 ) - 703.1 Electric
Networks - 704.1 Electric Components - 723 Computer Software, Data Handling and
Database: Compendex
296.
Title: Preparation and characterization of the Cu(In, Al)Se2 absorber
Authors: Ma, Jianping1 ; Li, Yaming1 ; Liu, Yantao1
Author affiliation: 1 Department of Applied Electronics, Xi'an University of Technology, 5
South Jinhua Road, Xi'an, Shaanxi, 710048, China
Corresponding author: Ma, J. ([email protected])
Source title: Lecture Notes in Electrical Engineering
Abbreviated source title: Lect. Notes Electr. Eng.
Volume: 134 LNEE
Monograph title: Advances in Electrical Engineering and Electrical Machines
Issue date: 2011
Pages: 329-335
Language: English
ISSN: 18761100
E-ISSN: 18761119
ISBN-13: 9783642259043
Conference name: 2nd International Conference of Electrical and Electronics Engineering,
ICEEE 2011
Conference location: Macau, China
Sponsor: International Industrial Electronics Center
Abstract: The CIAS films were deposited sequentially by selenization process of metallic
precursors, The CIAS films were characterized with X-ray diffraction (XRD), scanning electron
microscopy (SEM), energy dispersive spectroscopy (EDS) and so on. The results show that :it is
observed that CIAS thin films of samples F1, F2 and F3 are Cu-rich and the ratio of nAl/(nAl+nIn)
is 0.14, 0.22, 0.33, and the CIAS films with smooth surface, homogenous distribution and better
crystallization, films are chalcopyrite phase with preferred (112) orientation. For F2 sample with
four minutes sputtering time, the value of x is 0.22 in CIAS film, the band gap between 1.4eV and
1.5eV was obtained in accordance with ideal band gap of solar cells. © 2011 Springer-Verlag.
Controlled terms: Copper compounds - Electric machinery - Electrical engineering -
Electronics engineering - Energy dispersive spectroscopy - Energy gap - Film
preparation - Nickel compounds - Scanning electron microscopy - Semiconducting
selenium compounds - X ray diffraction
Uncontrolled terms: Cu(In ,Al)Se - Cu(In ,Al)Se2 - Metallic precursor - Selenization
- Smooth surface - Sputtering time
- 741.1 Light/Optics - 801 Chemistry - 804.1 Organic Compounds - 931.3 Atomic
and Molecular Physics - 715 Electronic Equipment, General Purpose and Industrial - 544.1
Copper - 705.1 Electric Machinery, General - 709 Electrical Engineering, General 712.1 Semiconducting Materials - 712.1.2 Compound Semiconducting Materials - 713
Electronic Circuits - 714 Electronic Components and Tubes
DOI: 10.1007/978-3-642-25905-0_43
Database: Compendex
297.
Title: Automated debugging of resistance inflexion of OCXO
Authors: Ma, Jianping1 ; Wang, Bing1
Author affiliation: 1 Automation and Information Engineering, Xi'An University of
Technology, Xi'an, Shaanxi, China
Volume: 433-440
Issue date: 2012
Pages: 5601-5606
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Abstract: This paper presents a method of automated testing inflexion of OCXO by computer. It
has been greatly reduced the debugging process and production time of OCXO through the
configuration consisted by computer software and AVR single chip designing. All the advantages
mentioned above contribute to the mass production of OCXO. © (2012) Trans Tech Publications,
Switzerland.
Main heading: Computer debugging
Controlled terms: Information technology - Materials testing - Program debugging
Uncontrolled terms: Inflexion - MCU - OCXO - Temperature-frequency charcteristic
- VC++
Classification code: 422 Strength of Building Materials; Test Equipment and Methods - 423
Non Mechanical Properties and Tests of Building Materials - 723.1 Computer Programming
- 903 Information Science - 951 Materials Science
Database: Compendex
298.
Title: Characterization of CuInS2 thin films prepared by sulfurization of the Cu-In precursors
Authors: Ma, Jianping1 ; Gao, Yang1 ; Liu, Yantao1
Author affiliation: 1 Department of Applied Electronics, Xi'an University of Technology, 5
South Jinhua Road, Xi'an, Shaanxi, 710048, China
Volume: 134 LNEE
Monograph title: Advances in Electrical Engineering and Electrical Machines
Issue date: 2011
Pages: 337-343
Language: English
ISSN: 18761100
E-ISSN: 18761119
ISBN-13: 9783642259043
Conference name: 2nd International Conference of Electrical and Electronics Engineering,
ICEEE 2011
Conference location: Macau, China
Sponsor: International Industrial Electronics Center
Abstract: CuInS2 (CIS) thin films were prepared by sulfurization of the Cu-In metallic
precursors in sulfur atmosphere. Cu-In metallic precursor layers were deposited onto soda lime
glass substrates by pulsed-dc magnetron sputtering process, CuInS2 samples were grown by
sulfurization of the Cu-In metallic precursors in the sulfurization experiment set up, the influences
of annealing temperature and annealing time on the films properties were studied. Microstructure,
composition and optical properties of the films were investigated by X-ray diffraction (XRD),
energy dispersive spectroscopy (EDS) and spectrophotometer. The results explicitly reveal that
annealing conditions exerts significant influences on the properties of the CuInS2 films during the
sulfurization process. © 2011 Springer-Verlag.
Main heading: Film preparation
Controlled terms: Annealing - Copper - Electric machinery - Electrical engineering
- Electronics engineering - Energy dispersive spectroscopy - Optical properties Substrates - Thin films - X ray diffraction
Uncontrolled terms: Annealing condition - Annealing temperatures - Annealing time CuInS2 - Films properties - Magnetron sputtering process - Metallic precursor Precursors - Pulsed DC - Soda lime glass substrate
- Sulfur atmosphere Sulfurization
Classification code: 715 Electronic Equipment, General Purpose and Industrial - 716
Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718
Telephone Systems and Related Technologies; Line Communications - 741.1 Light/Optics 801 Chemistry - 931.3 Atomic and Molecular Physics - 714.2 Semiconductor Devices and
Integrated Circuits - 537.1 Heat Treatment Processes - 544.1 Copper - 705.1 Electric
Machinery, General - 709 Electrical Engineering, General - 712.1 Semiconducting
Materials - 713 Electronic Circuits - 714 Electronic Components and Tubes
DOI: 10.1007/978-3-642-25905-0_44
Database: Compendex
299.
Title: An research for formal verification of safety-critical software
Authors: Ma, Weigang1, 2 ; Hei, Xinhong2
Author affiliation: 1 Key Laboratory of Computer Networks and Information Security,
Ministry of Education, Xidian University, Xi'an, 710071, China
2 School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, 710071,
China
Corresponding author: Ma, W.
Source title: Proceedings of the 2012 International Conference on Computer Application and
System Modeling, ICCASM 2012
Abbreviated source title: Proc. Int. Conf. Comput. Appl. Syst. Model., ICCASM
Monograph title: Proceedings of the 2012 International Conference on Computer Application
and System Modeling, ICCASM 2012
Issue date: 2012
Pages: 0836-0839
Language: English
ISBN-13: 9789491216008
Conference name: 2012 2nd International Conference on Computer Application and System
Modeling, ICCASM 2012
Conference location: Shenyang, China
Sponsor: ASME; Taiyuan Institute of Technology
Publisher: Atlantis Press, 29 avenue Laumiere, Paris, 75019, France
Abstract: A verification methodology is presented for railway interlocking system which is
regarded as a safety-critical system. The methodology utilizes UML to model the function
requirement and LTL to verify the safety requirements of the specification. The device
specifications of railway interlocking system are modeled with UML, then translate into FSM.
The safety specification is translated LTL and analyzed with NuSMV. We try to show the
feasibility of improving the reliability and reducing revalidation efforts when designing and
developing a decentralized railway signaling system. © The Authors.
Main heading: Computer applications
Controlled terms: Interlocking signals - Specifications
Uncontrolled terms: Device specification - Formal verifications - FSM - Function
requirements - LTL - Railway interlocking system - Railway signaling Revalidation - Safety critical software - Safety critical systems
- Safety requirements
- Safety specifications - UML - Verification methodology
Classification code: 681.3 Railroad Signals and Signaling - 723.5 Computer Applications 902.2 Codes and Standards
Database: Compendex
300.
Title: Enriched meshless method based on partition of unity for a body with cracks
Authors: Ma, Wen-Tao1, 2 ; Shi, Jun-Ping1 ; Li, Ning1
2 Department of Mathematics and Computer Engineering, Ningxia University, Yinchuan 750021,
China
Corresponding author: Ma, W.-T. ([email protected])
Source title: Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics
Abbreviated source title: Jisuan Lixue Xuebao
Volume: 29
Issue: 4
Pages: 505-510
Language: Chinese
ISSN: 10074708
CODEN: JLXIAB
Abstract: Numerical simulation of discontinuities, especially for solving the dynamic cracks, is a
hot and difficult problem. The meshless method based only on nodes is very suitable for solving
those typical questions. A new method for crack approximation is introduced. Based on the idea of
partition of unity, one Heaviside function accounting for the displacement discontinuity along the
crack faces and four enriched functions near the crack tip in order to capture the singularity of the
asymptotic crack tip displacement fields are enriched in the function of moving least square (MLS)
approximation. Then the linear discrete system of equilibrium differential equations is derived by
using the Galerkin method and the interaction integral method to evaluate the stress intensity
factors is presented. Compared with other styles of enriched meshless, one advantage of this
methods is that the visibility criterion is not to be used around the crack tip. Therefore, r1/2
singularity is reproduced very well. The second advantage is that the domain of influence of the
nodes not changed by the passage of the crack, holding the equations of sparsity, leading to rather
high computations. Numerical simulations illustrate that the approach can effectively model the
discontinuities, and it has practical merits.
Main heading: Least squares approximations
Controlled terms: Computer simulation - Crack tips - Cracks - Galerkin methods Stress intensity factors
Uncontrolled terms: Crack faces - Crack tip displacement - Discontinuities Displacement discontinuity - Domain of influences - Heaviside functions - Interaction
integral method - Linear discrete systems - Mesh-less methods - Meshless Moving least square approximation - Partition of unity - Visibility criterion
Computer Applications - 921.6 Numerical Methods
Database: Compendex
301.
Title: A new meshless numerical method for simulating frictional contact problems
Authors: Ma, Wen-Tao1, 2 ; Shi, Jun-Ping1 ; Li, Ning1
2 School of Mathematics and Computer Engineering, Ningxia University, Yinchuan 750021,
China
Corresponding author: Ma, W.-T. ([email protected])
Volume: 33
Issue: 10
Pages: 3145-3150
Language: Chinese
ISSN: 10007598
Abstract: A new meshless numerical method for frictional contact problem is presented. In order
to represent the discontinuous displacement field along contact surface and stress singularity
around the contact surface tip, a discontinuous function and asymptotic crack tip displacement
fields are added to the standard displacement formula based on the idea of partition of unity. Then,
combined with frictional contact laws, a linear complementary model with the meshless method is
formulated. In this approach, contact interface equations are discretized by contact
point-discretization; and the global discretized system equation are transformed into a standard
linear complementary problem that can be solved readily by using the Lemke method. Numerical
examples show that the method is effective for solving the frictional contact problems.
Main heading: Friction
Controlled terms: Numerical methods
Uncontrolled terms: Complementary model - Contact interface - Contact surface Crack tip displacement - Discontinuous displacement - Discontinuous displacement field
- Discontinuous functions - Discretized systems - Frictional contact - Frictional
contact problems - Linear complementarity - Linear complementary problems Mesh-less methods - Meshless numerical method - Numerical example - Partition of
unity - Stress singularities
Classification code: 921.6 Numerical Methods - 931.1 Mechanics
Database: Compendex
302.
Title: The survey and research on application of cloud computing
Authors: Ma, Wenqing1, 2 ; Zhang, Jing1
2 Xi'an Shiyou University, Xi'an, China
Corresponding author: Ma, W.
Source title: ICCSE 2012 - Proceedings of 2012 7th International Conference on Computer
Abbreviated source title: ICCSE - Proc. Int. Conf. Comput. Sci. Educ.
Monograph title: ICCSE 2012 - Proceedings of 2012 7th International Conference on Computer
Issue date: 2012
Pages: 203-206
Language: English
ISBN-13: 9781467302425
Conference name: 2012 7th International Conference on Computer Science and Education,
ICCSE 2012
Sponsor: University of Melbourne
United States
Abstract: Cloud computing has now become the largest hearing field and question in IT industry
and each industry join in the development of cloud. This article studies the popular cloud
platforms and cloud services on the basis of three types of cloud services, introduces the Google's
cloud computing technology - GFS, MapReduce, Bigtable which has the most application
prospects. And it analysis the application scene and prospect of the three types of clouds, forecasts
that the cloud technology is the most mainstream development direction in IT in 21 century. And
cloud computing offer opportunities and challenges not only to the IT manufacturers but also to
every country. © 2012 IEEE.
Main heading: Cloud computing
Controlled terms: Audition - Computer science - Distributed database systems Education computing - Engineering education - Information technology - Web services
Uncontrolled terms: Application prospect - Cloud services - Computing technology Development directions - Infrastructure as a Service - IT industry - Map-reduce Platform as a Service - Software as a service
Classification code: 901.2 Education - 751.1 Acoustic Waves - 723.3 Database Systems
- 903 Information Science - 723 Computer Software, Data Handling and Applications 722 Computer Systems and Equipment - 721 Computer Circuits and Logic Elements 722.4 Digital Computers and Systems
DOI: 10.1109/ICCSE.2012.6295057
Database: Compendex
303.
Title: Evolving multicast tree based artificial fish swarm algorithm
Authors: Ma, Xuan1 ; Liu, Qing1
Corresponding author: Ma, X.
Source title: Tongxin Xuebao/Journal on Communications
Abbreviated source title: Tongxin Xuebao
Volume: 33
Issue: 9
Pages: 1-7
Language: Chinese
ISSN: 1000436X
Publisher: Editorial Board of Journal on Communications, No.1 Binhe Road, Hepingli,
Dongcheng District, Beijing, 1000013, China
Abstract: An artificial fish swarm algorithm with two regions model was proposed. The
algorithm used a multicast tree formed by the predecessor orientation method to represent an
artificial fish, and divided the search space into feasible region and infeasible region. The artificial
fishes in the feasible region and the infeasible region were given different moving objectives,
respectively. The behavior operator was designed to adaptively implement four behaviors of
artificial fish. Experimental results show that the proposed algorithm can effectively make use of
the infeasible individuals and performs better in searching least-cost multicast tree with delay
constraint.
Main heading: Trees (mathematics)
Controlled terms: Algorithms - Forestry - Multicasting
Uncontrolled terms: Artificial fish - Artificial fish swarm algorithms - Delay constraints
- Feasible regions - Multicast tree - Search spaces
Classification code: 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory 921 Mathematics - 821.0 Woodlands and Forestry - 723 Computer Software, Data
Handling and Applications - 718 Telephone Systems and Related Technologies; Line
and Television
Database: Compendex
304.
Title: Numerical investigation of different casing treatments on performance of a high speed
centrifugal compressor stage
Authors: Ma, Yan1 ; Xi, Guang1 ; Wu, Guangkuan2
Author affiliation: 1 School of Energy and Power Engineering, Xi'an Jiaotong University,
Xi'an 710049, China
Xi'an 710048, China
Corresponding author: Ma, Y.
Source title: Proceedings of the ASME Turbo Expo
Abbreviated source title: Proc. ASME Turbo Expo
Volume: 3
Monograph title: ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition,
GT2011
Volume title: Controls, Diagnostics and Instrumentation; Education; Electric Power;
Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle
Issue date: 2011
Pages: 843-851
Language: English
ISBN-13: 9780791854631
Conference name: ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition,
GT2011
Conference location: Vancouver, BC, Canada
Sponsor: International Gas Turbine Institute
Abstract: In this paper, two different casing treatment devices - one adopting inlet recirculation
at the shroud side of the impeller inlet and the other adopting circumferential casing grooves at the
shroud side of the vaneless space, are designed for a high speed centrifugal compressor stage. The
effects of different casing treatments to the flow range and performance of the centrifugal
compressor stage are studied numerically. The results indicate that traditional inlet recirculation at
impeller inlet does not extend the stall margin of the stage and the performance deteriorates due to
the adding of the extra device. The study also shows that, when the location of the bleed slot
moves downstream, the performance of the stage deteriorates due to the longer flow path.
Moreover, the 2mm depth circumferential casing grooves extend the stall margin by about 12.05%.
By contrast, the 6mm depth and 10mm depth grooves extend the stall margin by 3% and 2.4%
respectively. Copyright © 2011 by ASME.
Main heading: Exhibitions
Controlled terms: Centrifugal compressors - Impellers - Turbines
Uncontrolled terms: Casing treatment - Centrifugal compressor stage - Circumferential
casing grooves - Flow path - Flow ranges - High speed centrifugal compressor Impeller inlets - Inlet recirculation - Numerical investigations - Stall margin
Classification code: 601.2 Machine Components - 612.3 Gas Turbines and Engines 618.1 Compressors - 902.2 Codes and Standards
Database: Compendex
305.
Title: Study of twin shear unified elastoplastic finite difference method
Authors: Ma, Zong-Yuan1 ; Liao, Hong-Jian2
2 Department of Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Corresponding author: Ma, Z.-Y. ([email protected])
Source title: Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics
Abbreviated source title: Jisuan Lixue Xuebao
Volume: 29
Issue: 1
Pages: 43-48+80
Language: Chinese
ISSN: 10074708
CODEN: JLXIAB
Abstract: Based on the Lagrangian finite difference method, format of twin shear unified
elastoplastic finite difference is established. Twin shear unified elastoplastic model loaded into
software of FLAC (Fast Lagrangian Analysis of Continua) using a dynamic-link library file which
developed by VC++. The progressive failure of structure under complex stress state can be
simulated by twin shear unified elastoplastic finite difference method, moreover, no stiffness
matrix and nonlinear iterative created in the calculation proceess. Thus, it has positive significance
for theory and application of engineering. In this paper, the thick walled cylinder under inner
pressure, tension and compression of perforated plate, limit analysis of strip footing and slope
problem for SD (Strength Difference) material is analyzed. The results of numerical and slip line
field method are compared, and the results of two methods are similar.
Main heading: Elastoplasticity
Controlled terms: Computer simulation - Finite difference method - Lagrange multipliers
- Numerical methods - Perforated plates - Stiffness matrix - Strength of materials
Uncontrolled terms: Complex stress state - Dynamic link library - Elasto-plastic Elasto-plastic analysis - Elasto-plastic models - Fast Lagrangian analysis of continuum Finite difference - Inner pressure - Lagrangian - Limit analysis - Progressive
failure - Slipline field - Strength differences - Strip footing - Tension and
compression - Thick walled cylinders - Twin shear unified strength theory
Classification code: 951 Materials Science - 921.6 Numerical Methods - 921
Mathematics - 723.5 Computer Applications - 422 Strength of Building Materials; Test
Equipment and Methods - 421 Strength of Building Materials; Mechanical Properties 408.2 Structural Members and Shapes
Database: Compendex
306.
Title: Effect of preparation conditions on morphology and thermal stability of nanoporous
copper
Authors: Mao, Rong1 ; Liang, Shuhua1 ; Wang, Xianhui1 ; Yang, Qing1 ; Han, Bingbing1
Technology, Jinhua Road 5, Xi'an, Shaanxi 710048, China
Source title: Corrosion Science
Abbreviated source title: Corros. Sci.
Volume: 60
Pages: 231-237
Language: English
ISSN: 0010938X
CODEN: CRRSAA
Abstract: Nanoporous copper (NPC) was prepared by dealloying the as-cast Zn50Cu50,
Zn60Cu40, Zn70Cu30 and Zn80Cu20 alloys in NH4Cl+HCl and HCl solutions. The results show
that Zn70Cu30 alloy is the best precursor to form NPC with uniform structures. The addition of
NH4Cl into HCl aqueous solution increases the corrosion rate, which favors the fabrication of
uniform porous structures. A solution of 1M NH4Cl+HCl is suitable for dealloying Zn70Cu30
alloy. To reduce the shale-defects, the Zn70Cu30 alloy should be annealed at 530°C. The NPC
fabricated by dealloying Zn70Cu30 precursor (annealed at 530°C) in NH4Cl+HCl solution has
better thermal stability. © 2012 Elsevier Ltd.
Main heading: Zinc
Controlled terms: Alloys - Copper - Thermodynamic stability
Uncontrolled terms: Acid corrosion - As-cast - C. De-alloying - Dealloying - HCl
solution - Nano-porous - Porous structures - Preparation conditions - Uniform
structure
Classification code: 531.1 Metallurgy - 544.1 Copper - 546.3 Zinc and Alloys - 641.1
Thermodynamics
DOI: 10.1016/j.corsci.2012.03.032
Database: Compendex
307.
Title: Parameter inversion model for two dimensional parabolic equation using
Levenberg-Marquardt method
Authors: Min, Tao1 ; Hao, Zhulin1 ; Feng, Minquan1 ; Tang, Hansong2
2 Dept. of Civil Eng., City College, City University of New York, New York 10031, United
States
Corresponding author: Min, T. ([email protected])
Source title: Modelling for Environment's Sake: Proceedings of the 5th Biennial Conference of
the International Environmental Modelling and Software Society, iEMSs 2010
Abbreviated source title: Model. Environ. Sake: Proc. Bienn. Conf. Int. Environ. Model. Softw.
Soc., iEMSs
Volume: 3
Monograph title: Modelling for Environment's Sake: Proceedings of the 5th Biennial
Conference of the International Environmental Modelling and Software Society, iEMSs 2010
Issue date: 2010
Pages: 2385-2392
Language: English
ISBN-13: 9788890357411
Conference name: 5th Biennial Conference of the International Environmental Modelling and
Software Society: Modelling for Environment's Sake, iEMSs 2010
Conference location: Ottawa, ON, Canada
Sponsor: Beijing Development Area Co., Ltd.; Computing Research Laboratory for the
Environment (CRLE); Open Geospatial Consortium, Inc. (OGC); International Symposium on
Environmental Software Systems (ISESS); Peking University; U.S. Geological
Survey-Climateand Land Use Change Branch (USGS)
Publisher: iEMSs Secretariat c/- IDSIA, Galleria 2, Manno, 6928, Switzerland
Abstract: The problem of determining unknown parameters in the two-dimensional heat
equation is considered. A method based on the Levenberg-Marquardt algorithm (LMA) is
examined. The approach is successfully applied to solve the inverse problem of a two-dimensional
parabolic equation whose coefficient is a partition paragraph function. The numerical results
demonstrate the effectiveness of the proposed method.
Main heading: Partial differential equations
Controlled terms: Inverse problems - Numerical methods - Two dimensional
Uncontrolled terms: Heat equation - Levenberg-Marquardt - Levenberg-Marquardt
algorithm - Levenberg-Marquardt method - Numerical results - Parabolic Equations Parameter inversion - Unknown parameters
Database: Compendex
308.
Title: Urban water demand prediction model based on blind number theory
Authors: Mo, Shuhong1 ; Duan, Haini1 ; Shen, Bing1
Author affiliation: 1 Key Laboratory of North-West Water Resources and Ecology
Environment, Education Ministry, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Mo, S. ([email protected])
Source title: IAHS-AISH Publication
Abbreviated source title: IAHS-AISH Publ.
Volume: 350
Monograph title: Hydrological Cycle and Water Resources Sustainability in Changing
Environments
Issue date: 2011
Pages: 639-644
Language: English
ISSN: 01447815
CODEN: IAPUEP
ISBN-13: 9781907161254
Conference name: 5th International Symposium on Integrated Water Resources Management,
IWRM 2010 and the 3rd International Symposium on Methodology in Hydrology
Conference location: Nanjing, China
Sponsor: The Chinese National Committee for IAHS; Int. Train. Res. Cent. Hydrol., Water
Resour. Environ.; UNESCO; China's 111 Proj. Initiated Minist. Educ. State; Adm. Foreign Experts
Aff. (B08048); et. al.
Publisher: IAHS Press, Wallingford, Oxfordshire, OX10 8BB, United Kingdom
Abstract: Under rapid social and economic development, the urban water consuming system is
full of uncertainties. In this study, by analysing the driving factors leading to the uncertainties, the
method of structure analysis is combined with unascertained mathematics to develop an uncertain
urban water demand forecasting model based on blind number theory. A case study is provided to
forecast the domestic water demand in Baoji city by the developed methodology, the results
indicated that reasonable solution is reliable and conforms more to objective reality, which shows
the developed method is feasible in studying urban water supply and demand. Copyright © 2011
IAHS Press.
Controlled terms: Economics - Forecasting - Mathematical models - Number theory
- Uncertainty analysis
Uncontrolled terms: Blind number - Domestic water - Driving factors - Economic
development - Objective reality - Structure analysis - Unascertained mathematics Urban water supply - Urban waters
Classification code: 444 Water Resources - 921 Mathematics - 922.1 Probability Theory
- 971 Social Sciences
Database: Compendex
309.
Title: A novel PN-coded FMCW radar design and implementation
Authors: Mu, Li1 ; Zhang, Xiaohui1 ; Tong, Xiangqian1 ; Liu, Qing1
Author affiliation: 1 Xi'An University of Technology, Xi'an, China
Corresponding author: Mu, L. ([email protected])
Source title: Proceedings of 2011 IEEE CIE International Conference on Radar, RADAR 2011
Abbreviated source title: Proc. IEEE CIE Int. Conf. Radar, RADAR
Volume: 2
Monograph title: Proceedings of 2011 IEEE CIE International Conference on Radar, RADAR
2011
Issue date: 2011
Pages: 1004-1007
Language: English
ISBN-13: 9781424484416
Conference name: 6th International Conference on Radar, RADAR 2011
Conference location: Chengdu, China
Sponsor: China Institute of Electronics (CIE); IEEE Beijing Section; IEEE Chengdu Section;
IEEE Aerospace and Electronic System Society (AESS); The Institute of Engineering and
Technology (IET)
United States
Abstract: In this paper, a pseudo-noise( PN) coded FMCW radar system design and
implementation is proposed, the PN-coded FMCW radar character as low false alarm rate and low
cost, the radar sensor prototype has been used in a collision warning system. experiment results
indicated that the radar is suitable for automotive collision avoidance system application. © 2011
IEEE.
Main heading: Radar systems
Controlled terms: Systems analysis
Uncontrolled terms: Capacity analysis - Collision avoidance systems - Collision warning
system - False alarm rate - FMCW radar - Low costs - Pseudonoise - Radar
sensors
Classification code: 716.2 Radar Systems and Equipment - 961 Systems Science
DOI: 10.1109/CIE-Radar.2011.6159721
Database: Compendex
310.
Title: Study on the FPGA implementation algorithm of effictive FIR filter based on remainder
theorem
Authors: Mu, Nila1 ; Liu, Gaohui2
Author affiliation: 1 School of Computer Science and Engineering, Xinjiang University of
Finance and Economics, Urumqi, Xinjiang 830012, China
Corresponding author: Mu, N. ([email protected])
Source title: 2012 2nd International Conference on Consumer Electronics, Communications and
Networks, CECNet 2012 - Proceedings
Abbreviated source title: Int. Conf. Consum. Electron., Commun. Networks, CECNet - Proc.
Monograph title: 2012 2nd International Conference on Consumer Electronics, Communications
and Networks, CECNet 2012 - Proceedings
Issue date: 2012
Pages: 2128-2131
Language: English
ISBN-13: 9781457714153
Conference name: 2012 2nd International Conference on Consumer Electronics,
Communications and Networks, CECNet 2012
Conference location: Three Gorges, China
Sponsor: IEEE
United States
Abstract: To minimize the logic resources and improve the operation speed, a new kind of FPGA
implementation algorithm of distributed arithmetic FIR filter is presented, which is based on
remainder theorem. In this algorithm, firstly the input signal and FIR filter's coefficients are
respectively transformed into remainder number, then the filtering operation are carried out by
MAC module with folding structure and pipeline organization, finally the remainder number of
MAC result are transformed into binary data. The ModelSim simulation result shows that the
implementation method is feasibly and effictive and comparing with the traditional methods can
enormously reduce the logic resources. © 2012 IEEE.
Main heading: FIR filters
Controlled terms: Algorithms - Consumer electronics - Field programmable gate arrays
(FPGA) - Filter banks
Uncontrolled terms: Binary data - Distributed arithmetic - Filter-based - Filtering
operations - Folding structures - FPGA implementations - Input signal - Logic
resources - Modelsim - Operation speed - Pipeline organization - Pipeline
structure - Remainder theorem
Classification code: 703.2 Electric Filters - 715 Electronic Equipment, General Purpose and
Industrial - 721.3 Computer Circuits - 723 Computer Software, Data Handling and
Applications - 913 Production Planning and Control; Manufacturing - 921 Mathematics
DOI: 10.1109/CECNet.2012.6201698
Database: Compendex
311.
Title: Optimization for combination of irrigation technique element for border irrigation
Authors: Nie, Weibo1 ; Fei, Liangjun1 ; Ma, Xiaoyi2
Author affiliation: 1 Institute of Water Resources, Xi'an University of Technology, Xi'an
710048, China
2 Key Laboratory for Agricultural Soil and Water Engineering in Arid and Semiarid Areas,
Northwest A and F University, Yangling, Shaanxi 712100, China
Corresponding author: Nie, W. ([email protected])
Source title: Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural
Machinery
Abbreviated source title: Nongye Jixie Xuebao
Volume: 43
Issue: 1
Pages: 83-88+107
Language: Chinese
ISSN: 10001298
CODEN: NUYCA3
Publisher: Chinese Society of Agricultural Machinery, No. 1 Beishatan Deshengmen Wai,
Abstract: Based on the field experiments carried out in Yangling, the values of irrigation
performance were simulated by the WinSRFR software, and the influence of border length, field
slope, unit discharge and cutoff time on irrigation application efficiency, distribution uniformity
and storage efficiency were analyzed. On this basis, combined with uniform design and multiple
regression analysis, a single-objective optimization model was established including irrigation
application efficiency, distribution uniformity and storage efficiency, and taking unit discharge and
cutoff time as variables. The model was solved by genetic algorithms, the optimized combination
of irrigation technique element under different theories of water requirement were proposed in
Wangshang Village, the results show that it can realize a high irrigation performance and water
saving for border irrigation through a proper selection of unit discharge and cutoff time.
Main heading: Irrigation
Controlled terms: Efficiency - Mathematical models - Optimization - Regression
analysis - Water conservation
Uncontrolled terms: Border irrigation - Distribution uniformity - Field experiment Irrigation performance - Multiple regression analysis - Optimization model - Single
objective optimization - Storage efficiency - Uniform Design - Unit discharge
Water requirements - Water saving
Classification code: 444 Water Resources - 821.3 Agricultural Methods - 913.1
Production Engineering - 921 Mathematics - 921.5 Optimization Techniques - 922.2
Mathematical Statistics
DOI: 10.6041/j.issn.1000-1298.2012.01.016
Database: Compendex
312.
Title: Evaluation of border irrigation performance based on spatial variability of infiltration
parameters
Authors: Nie, Weibo1, 2 ; Fei, Liangjun1 ; Ma, Xiaoyi2
Author affiliation: 1 Institute of Water Resources, Xi'an University of Technology, Xi'an
710048, China
2 Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of
Education, Northwest Agriculture and Forestry University, Yangling 712100, China
Corresponding author: Nie, W. ([email protected])
Engineering
Volume: 28
Issue: 1
Pages: 100-105
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: Objective evaluation on border irrigation performance is an essential basis to set up a
proper irrigation scheme. Assumed that the soil characteristics spatial variability can be directly
reflected from the changes of infiltration coefficient, taken the border irrigation experiments
conducted in Yangling District with the clay loam and sandy loam as study objects, the effects of
the soil characteristics spatial variability to irrigation performance were analyzed and the changes
of irrigation performance of border irrigation were revealed. Results showed that irrigation
efficiency, distribution uniformity and storage efficiency decreased with the infiltration variation
coefficient increased. The decrease range of the irrigation application efficiency and storage
efficiency was smaller respectively compared with that of distribution uniformity. Therefore the
spatial variability of soil infiltration coefficient has greater effect on distribution uniformity than
the irrigation application efficiency and storage efficiency. The method proposed in this paper can
much better reflect the actual irrigation performance of border irrigation and provide a proper
irrigation scheme with theoretical foundation and technological support.
Main heading: Irrigation
Controlled terms: Efficiency - Infiltration - Seepage - Soil surveys - Soils
Uncontrolled terms: Border irrigation - Clay loams - Distribution uniformity Evaluation of irrigation performance - Infiltration parameters - Irrigation efficiency -
Irrigation performance - Irrigation schemes - Objective evaluation - Sandy loams Soil characteristics - Soil infiltration - Spatial variability - Storage efficiency Technological supports - Theoretical foundations - Variation coefficient
Dams and Reservoirs; Hydro Development - 483.1 Soils and Soil Mechanics - 821.3
Agricultural Methods - 913.1 Production Engineering
DOI: 10.3969/j.issn.1002-6819.2012.01.019
Database: Compendex
313.
Title: Strengthening treatment and analysis for the left bank abutment of Jin Ping arch dam
Authors: Ning, Li1 ; Xianchun, Yao1 ; Xing, Qu1 ; Chengke, Zhang1 ; Zhiqiang, Zhang1 ;
Zhong, Zhou2
Author affiliation: 1 Xian University of Technology, Institute of Geotechnical Engineering, 5
South Jinhua Road, Xi'an Shaanxi, 710048, China
2 Chengdu Hydroelectric Investigation and Design Institute of SPC, NO.1 Huanhua Road,
Chengdu, 610072, China
Corresponding author: Ning, L. ([email protected])
Source title: Geomechanik und Tunnelbau
Abbreviated source title: Geomech. Tunnelbau
Volume: 5
Issue: 5
Pages: 497-502
Language: English
ISSN: 18657362
E-ISSN: 18657389
Publisher: Wilhelm Ernst and Sohn, Rotherstr. 21, Berlin, 10245, Germany
Abstract: The Jin Ping arch dam foundation exhibits large differences in the stiffness between
left and right bank due to a fault in the valley and unloading, relaxation and rock crushing effects
in the left abutment. An extremely complex engineering problem appears by achieving mechanical
balance for the dam body. To reinforce the left dam foundation concrete pads refilling faults, huge
concrete piles and consolidation grouting together with grout and drainage curtains are
investigated and executed. The numerical results show that these reinforcement measures for the
excavated dam foundation improved significantly the rock mass deformability and its stability. A
suitable excavation sequence for reinforcement tunnels and caverns is studied and the stability of
these tunnels is analysed. The influence of consolidation grouting on the slope stability is
investigated by varying spacing and number of active grouting holes. During the construction of
the reinforcement tunnels the vibrations induced by blasting are simulated and measured. For
different distances between tunnels and slope to tunnels respectively, the maximum quantity of
explosives for single drives is studied. © 2012 Ernst & Sohn Verlag fu&die;r Architektur und
technische Wissenschaften GmbH & Co. KG, Berlin.
Main heading: Grouting
Controlled terms: Abutments (bridge) - Arch dams - Concrete construction Explosives - Foundations - Mortar - Reinforcement - Slope stability Unloading
Uncontrolled terms: Arch dam foundation - Complex engineering problems - Dam body
- Dam foundation - Excavation sequences - Left abutment - Mechanical balance Numerical results - Rock crushing - Rock mass
Classification code: 804 Chemical Products Generally - 674.1 Small Marine Craft 441.1 Dams - 415 Metals, Plastics, Wood and Other Structural Materials - 951 Materials
Science - 414.3 Mortar (Before 1993, use code 412) - 406.2 Roads and Streets - 405
Construction Equipment and Methods; Surveying - 401.1 Bridges - 412 Concrete
DOI: 10.1002/geot.201200036
Database: Compendex
314.
Title: Formation of multiple twins and their strengthening effect in nanocrystalline Cu/Zr
multilayer films
Authors: Niu, J.J.1 ; Zhang, P.1 ; Wang, R.H.2 ; Zhang, J.Y.1 ; Liu, G.1 ; Zhang, G.J.2 ; Sun, J.1,
2
Author affiliation: 1 State Key Laboratory for Mechanical Behavior of Materials, Xi'an
Jiaotong University, Xi'an, 710049, China
2 School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048,
China
Source title: Materials Science and Engineering A
Abbreviated source title: Mater. Sci. Eng. A
Volume: 539
Pages: 68-73
Language: English
ISSN: 09215093
Abstract: Multiple twins are experimentally observed within Cu grains in nanostructured Cu/Zr
multilayer films. Formation of the multiple twins occurs through the sequential emission of partial
dislocations not only from the grain boundaries but also from the Cu/Zr interfaces, which are
driven by extremely high internal stresses and highly complex stress state caused by the
inhomogeneous microstructures. The multilayers with multiple twins exhibit hardness higher than
those with single or coplanar twins, indicative of a significant strengthening effect of the multiple
twins. © 2012 Elsevier B.V.
Main heading: Strengthening (metal)
Controlled terms: Grain boundaries - Interface states - Multilayer films
Uncontrolled terms: Complex stress state - Formation mechanism - Inhomogeneous
microstructure - Multiple twins - Nanocrystalline Cu - Nanostructured Cu - Partial
dislocations - Strengthening effect
Classification code: 537.1 Heat Treatment Processes - 813.2 Coating Materials - 931
Classical Physics; Quantum Theory; Relativity - 932 High Energy Physics; Nuclear Physics;
Plasma Physics - 933.1 Crystalline Solids
DOI: 10.1016/j.msea.2012.01.046
Database: Compendex
315.
Title: Study on a novel disphase supplying supported liquid membrane for transport behavior of
divalent nickel ions
Authors: Pei, Liang1, 2 ; Wang, Liming2, 3 ; Guo, Wei3 ; Zhao, Nan2
Author affiliation: 1 Key Laboratory of Water Cycle and Related Land Surface Processes,
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,
Beijing 100101, China
2 Faculty of Water Resources and Hydraulic Power, Xi'An University of Technology, Xi'an
710048, China
3 School of Chemical and Environmental Engineering, Xi'An Polytechnic University, Xi'an
710048, China
Corresponding author: Pei, L. ([email protected])
Source title: Chinese Journal of Chemical Engineering
Abbreviated source title: Chin J Chem Eng
Volume: 20
Issue: 4
Pages: 633-640
Language: English
ISSN: 10049541
CODEN: CJCEEB
Publisher: Chemical Industry Press, No. 3 Huixinli, Chaoyangqu, Beijing, 100029, China
Abstract: A novel disphase supplying supported liquid membrane (DSSLM), containing
supplying feed phase and supplying stripping phase for transport behavior of Ni(II), have been
studied. The supplying supported feed phase included feed solution and di(2-ethyhexyl)
phosphoric acid (HDEHP) as the carrier in kerosene, and supplying stripping phase included
HDEHP as the carrier in kerosene and HCl as the stripping agent. The effects of volume ratio of
membrane solution to feed solution (O/F), pH, initial concentration of Ni(II) and ionic strength in
the feed solution, volume ratio of membrane solution to stripping solution (O/S), concentration of
H2SO4 solution, HDEHP concentration in the supplying stripping phase on transport of Ni(II), the
advantages of DSSLM compared to the traditional supported liquid membrane (SLM), the system
stability, the∼reuse of∼membrane∼solution and the retention of membrane phase were studied.
Experimental results indicated that the optimum transport of Ni(II) was obtained when H2SO4
concentration was 2.00 mol·L-1, HDEHP concentration was 0.120 mol·L-1, and O/S was 4: 1 in
the supplying stripping phase, O/F was 1: 10 and pH was 5.20 in the supplying feed phase. The
ionic strength in supplying feed phase had no obvious effect on transport of Ni(II). When initial
Ni(II) concentration was 2.00×10-4 mol/L, the transport percentage of Ni(II) was up to 93.1 in
250 min. The kinetic equation was deduced in terms of the law of mass diffusion and the interface
chemistry. © 2012 Chemical Industry and Engineering Society of China (CIESC) and Chemical
Industry Press (CIP).
Main heading: Liquid membranes
Controlled terms: Integral equations - Ionic strength - Kerosene - Nickel Organic acids - pH effects - Phosphoric acid - System stability
Uncontrolled terms: Feed phase - Nickel ions - Phosphonic acids - supplying
stripping phase - Supported liquid membrane
Classification code: 961 Systems Science - 921.2 Calculus - 804.2 Inorganic Compounds
- 804.1 Organic Compounds - 802.1 Chemical Plants and Equipment - 801.4 Physical
Chemistry - 801.1 Chemistry, General - 548.1 Nickel - 523 Liquid Fuels
DOI: 10.1016/S1004-9541(11)60228-0
Database: Compendex
316.
Title: Transport behavior of divalent lead ions through disphase supplying supported liquid
membrane with PC-88A as mobile carrier
Authors: Pei, Liang1 ; Wang, Li-Ming2
Author affiliation: 1 Laboratory of Water Cycle and Related Land Surface Processes, Institute
of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing
100101, China
2 Faculty OfWater Resources and Hydraulic Power, Xi'an University of Technology, Xi'an
710048, China
Source title: International Journal of Chemical Reactor Engineering
Abbreviated source title: Int. J. Chem. Reactor Eng.
Volume: 10
Issue: 1
Issue date: 2012
Article number: A11
Language: English
E-ISSN: 15426580
Publisher: Walter de Gruyter GmbH and Co. KG, Genthiner Strasse 13, Berlin, D-10785,
Germany
Abstract: Abstract The transport behavior of Pb(II) through a novel disphase supplying
supported liquid membrane (DSSLM) with 2-ethyl hexyl phosphonic acid-mono- 2-ethyl hexyl
ester (PC-88A) as the carrier in kerosene, polyvinylidene fluoride membrane(PVDF) as the
support and HCl as the stripping agent, has been studied. The effects of organic-to-feed volume
ratio (O:F), pH, initial concentration of Pb(II) and ionic strength in the feed solution,
organic-to-strip volume ratio (O:S), concentration of HCl solution and PC-88A concentration in
the supplying strip phase on transport of Pb(II) have also been investigated. The advantages of
DSSLM campared to the traditional SLM were investigated. The system stability, the reuse of
membrane solution and the retention of membrane phase were also studied. When initial Pb(II)
concentration was 2.00 × 10-4 mol/L, the transport percentage of Pb(II) was up to 92.9% under
the optimun conditions in 175 min. The kinetic equation was developed in terms of the law of
mass diffusion and the theory of interface chemistry. The results were in good agreement with
experimental results. Copyright. © 2012 De Gruyter. All rights reserved.
Main heading: Liquid membranes
Controlled terms: Chemical contamination - Concentration (process) - Integral equations
- Ionic strength - Lead - Organic acids - pH effects - System stability
Uncontrolled terms: Feed phase - Lead ion - Organophosphates - Strip phase Supported liquid membrane
Classification code: 961 Systems Science - 921.2 Calculus - 822.3 Food Products 804.1 Organic Compounds - 802.3 Chemical Operations - 802.1 Chemical Plants and
Equipment - 801.4 Physical Chemistry - 801.1 Chemistry, General - 546.1 Lead and
Alloys
DOI: 10.1515/1542-6580.2695
Database: Compendex
317.
Title: Study on a novel flat renewal supported liquid membrane with D2EHPA and hydrogen
nitrate for neodymium extraction
Authors: Pei, Liang1, 2 ; Wang, Liming3 ; Yu, Guoqiang2
Author affiliation: 1 Key Laboratory of Water Cycle and Related Land Surface Processes,
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,
Beijing 100101, China
2 Faculty of Water Resources and Hydraulic Power, Xi'An University of Technology, Xi'an
710048, China
3 School of Environment and Chemistry Engineering, Xi'An Polytechnic University, Xi'an
710048, China
Source title: Journal of Rare Earths
Abbreviated source title: J Rare Earth
Volume: 30
Issue: 1
Pages: 63-68
Language: English
ISSN: 10020721
CODEN: JREAE6
Publisher: Chinese Rare Earth Society, 2 Xinjiekouwai Dajie, Beijing, 100088, China
Abstract: The Nd(III) extraction in flat renewal supported liquid membrane (FRSLM), with
polyvinylidene fluoride membrane and renewal solution including HNO 3 solution as the stripping
solution and di(2-ethylhexyl) phosphoric acid (D2EHPA) dissolved in kerosene as the membrane
solution, was investigated. The effects of pH in the feed phase, volume ratio of membrane solution
to stripping solution, concentration of HNO3 solution and concentration of carrier in the renewal
phase on extraction of Nd(III) were also studied, respectively. As a result, the optimum extraction
conditions of Nd(III) were obtained when concentration of HNO3 solution was 4.00 mol/L,
concentration of D2EHPA was 0.100 mol/L, and volume ratio of membrane solution to stripping
solution was 1.00 in the renewal phase, and pH was 4.60 in the feed phase. When initial
concentration of Nd(III) was 2.00×10-4 mol/L, the extraction percentage of Nd(III) was up to 92.9
in 75 min. © 2012 The Chinese Society of Rare Earths.
Main heading: Neodymium
Controlled terms: Carrier concentration - Concentration (process) - Hydrogen Liquid membranes - Nitric acid - pH effects - Phosphoric acid - Rare earths
Uncontrolled terms: Di(2-ethylhexyl)phosphoric acid - Extraction conditions - Feed
phase - Initial concentration - Membrane extraction - Membrane solution Polyvinylidene fluoride membranes - Stripping solution - Supported liquid membrane Volume ratio
Classification code: 804.2 Inorganic Compounds - 804 Chemical Products Generally -
802.3 Chemical Operations - 802.1 Chemical Plants and Equipment - 801.1 Chemistry,
General - 701.1 Electricity: Basic Concepts and Phenomena - 547.2 Rare Earth Metals
DOI: 10.1016/S1002-0721(10)60640-0
Database: Compendex
318.
Title: CRAFT: Multimodality confocal skin imaging for early cancer diagnosis
Authors: Peng, Tong1, 2 ; Xie, Hao1 ; Ding, Yichen1 ; Wang, Weichao3 ; Li, Zhiming4 ; Jin,
Dayong5 ; Tang, Yuanhe2 ; Ren, Qiushi1, 3 ; Xi, Peng1
Author affiliation: 1 Department of Biomedical Engineering, College of Engineering, Peking
University, No. 5 Yiheyuan Road, Beijing 100871, China
2 Department of Physics, Xi'an University of Technology, No. 5 South Jinhua Road, Xi'an
710048, China
3 Department of Biomedical Engineering, College of Life Sciences and Biotechnology,
Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
4 Department of Dermatology and Venereology, First Affiliated Hospital of Wenzhou Medical
College, No. 2 Fuxue Road, Wenzhou, Zhejiang 325000, China
5 Advanced Cytometry Labs, MQphotonics Research Centre, Macquarie University, NSW 2109,
Sydney, Australia
Corresponding author: Xi, P. ([email protected])
Source title: Journal of Biophotonics
Abbreviated source title: J. Biophotonics
Volume: 5
Issue: 5-6
Pages: 469-476
Language: English
ISSN: 1864063X
E-ISSN: 18640648
Publisher: Wiley-VCH Verlag, P.O. Box 101161, Weinheim, D-69451, Germany
Abstract: Although histological analysis serves as a gold standard to cancer diagnosis, its
application on skin cancer detection is largely prohibited due to its invasive nature. To obtain both
the structural and pathological information in situ, a Confocal Reflectance/Auto-Fluorescence
Tomography (CRAFT) system was established to examine the skin sites in vivo with both
reflectance and autofluorescence modes simultaneously. Nude mice skin with cancerous sites and
normal skin sites were imaged and compared with the system. The cellular density and reflective
intensity in cancerous sites reflects the structural change of the tissue. With the decay coefficient
analysis, the corresponding NAD(P)H decay index for cancerous sites is 1.65-fold that of normal
sites, leading to a 97.8% of sensitivity and specificity for early cancer diagnosis. The results are
verified by the followed histological analysis. Therefore, CRAFT may provide a novel method for
the in vivo, non-invasive diagnosis of early cancer. © 2012 WILEY-VCH Verlag GmbH & Co.
KGaA, Weinheim.
Main heading: Diseases
Controlled terms: Dermatology - Optical tomography - Reflection - Tissue
Uncontrolled terms: Autofluorescence - Cancer - Cancer diagnosis - Cellular density
- Decay coefficients - Decay index - Early cancer - Gold standards - Histological
analysis - In-situ
- In-vivo - Melanoma - Multi-modality - NAD(p)H Non-invasive diagnosis - Normal skin - Nude mice - Reflective intensity Sensitivity and specificity - Skin cancers - Skin imaging - Structural change
Classification code: 461 Bioengineering and Biology - 711 Electromagnetic Waves
DOI: 10.1002/jbio.201100124
Database: Compendex
319.
Title: The role of a nanoscale interphase from plasma polymers on the micromechanics of fiber
composites
Authors: Photjanataree, Penchom1 ; Liu, Zheng2 ; Jones, Frank Ralph3
Author affiliation: 1 Thai Packaging Centre, Thailand Institute of Scientific and Technological
Research, Bangkok 10900, Thailand
2 School of Materials Science and Engineering, Xi'An University of Technology, Xi'an 710048,
China
3 Composites Systems Innovation Centre, Department of Materials Science and Engineering,
University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
Corresponding author: Jones, F.R. ([email protected])
Source title: Macromolecular Materials and Engineering
Abbreviated source title: Macromol. Mater. Eng.
Volume: 297
Issue: 6
Monograph title: New Trends in High-Performance Fibers and Fiber Technology
Pages: 523-531
Language: English
ISSN: 14387492
E-ISSN: 14392054
CODEN: MMENFA
Abstract: A model composite is used to simulate the interphase between an
allylamine/1,7-octadiene plasma copolymer-coated fiber and an epoxy resin. Time-of-flight
secondary-ion mass spectrometry (ToF-SIMS) is used to identify the structure of the interacting
polymers and the locus of failure. The crack propagates near to one of the glass surfaces where a
bonded semi- interpenetrating network forms. The effect of functionality of the plasma copolymer
coating (or size) and its thickness on interfacial stress transfer efficiency (STE) at a fiber-break is
studied using the fragmentation test. The cumulative stress transfer function and associated STE is
able to differentiate between the improvement with increasing amine group concentration and
decreasing thickness of the plasma polymer. Copyright © 2012 WILEY-VCH Verlag GmbH & Co.
KGaA, Weinheim.
Main heading: Plastic coatings
Controlled terms: Copolymers - Epoxy resins - Fibers - Glass - Interfaces
(materials) - Plasmas - Polymers - Secondary ion mass spectrometry
Uncontrolled terms: Allyl amine - Amine groups - Fiber composite - fragmentation
- Glass surfaces - Interfacial stress transfer - Model composites - Nano scale Plasma copolymer - Plasma polymers
- Time of flight secondary ion mass spectrometry
Classification code: 951 Materials Science - 932.3 Plasma Physics - 817.2 Polymer
Applications - 817 Plastics and Other Polymers: Products and Applications - 815.1.1
Organic Polymers - 815.1 Polymeric Materials - 812.3 Glass - 812 Ceramics,
Refractories and Glass - 801 Chemistry
DOI: 10.1002/mame.201100341
Database: Compendex
320.
Title: Equivalent ground conductivity inversion in maritime ASF correction
Authors: Pu, Yurong1 ; Xi, Xiaoli1 ; Zhu, Hong1
Corresponding author: Pu, Y.
Source title: IEICE Transactions on Communications
Abbreviated source title: IEICE Trans Commun
Volume: E95-B
Issue: 8
Monograph title: Special Section on Networking Technologies for Cloud Services
Pages: 2665-2668
Language: English
ISSN: 09168516
E-ISSN: 17451345
CODEN: ITRCEC
Publisher: Maruzen Co., Ltd., P.O. Box 247, Nihonbashi, Tokyo, 103-8691, Japan
Abstract: This letter presents an efficient method for the maritime Loran-C additional secondary
factor (ASF) correction based on equivalent ground conductivity inversion. Using the proposed
method, the accuracy of Loran-C system on maritime positioning, navigation, and timing (PNT)
can be improved significantly with a limited number of surveys. Comparison with measured ASF
results shows a root-mean-square error (RMSE) of less than 100 ns in most areas. Copyright ©
2012 The Institute of Electronics, Information and Communication Engineers.
Main heading: Electric grounding
Controlled terms: Radio navigation
Uncontrolled terms: Additional secondary factors - ASF - Ground conductivity Loran-C - Root-mean-square errors
Classification code: 704 Electric Components and Equipment - 706 Electric Transmission
and Distribution - 716.3 Radio Systems and Equipment
DOI: 10.1587/transcom.E95.B.2665
Database: Compendex
321.
Title: The knowledge-transfer risk evaluation model of the execution of ERP project based on
AHP
Authors: Qi, Dewei1 ; Zhu, Zongqian1
Author affiliation: 1 Economics-Management Institute, Xi'an University of Technology, Xi'an,
China
Corresponding author: Qi, D.
Source title: Proceedings of the 2012 5th International Conference on Business Intelligence and
Financial Engineering, BIFE 2012
Abbreviated source title: Proc. Int. Conf. Bus. Intell. Financ. Eng., BIFE
Monograph title: Proceedings of the 2012 5th International Conference on Business Intelligence
and Financial Engineering, BIFE 2012
Issue date: 2012
Pages: 636-640
Language: English
ISBN-13: 9780769547503
Conference name: 2012 5th International Conference on Business Intelligence and Financial
Engineering, BIFE 2012
United States
Abstract: The ERP project implementation process is to determine its characteristics. It is a
process of transferring knowledge. On the analysis of the ERP project implementation, the process
of transferring knowledge will arouse risks. Based on the knowledge-transferred risk evaluation
index system and the analytic hierarchy process (AHP), the knowledge-transferred risk evaluation
model of the executive ERP project has been set up. After the studies of many real cases, the
results show that the ERP project implementation knowledge transferred risk assessment is
feasible by using analytic hierarchy process. © 2012 IEEE.
Main heading: Enterprise resource planning
Controlled terms: Analytic hierarchy process - Hierarchical systems - Knowledge
management - Models
Uncontrolled terms: Evaluation - Knowledge transfer - Project implementation Project-based - Risk evaluation - Transferred risk
Classification code: 723.2 Data Processing and Image Processing - 723.5 Computer
Applications - 902.1 Engineering Graphics - 921 Mathematics - 961 Systems Science
DOI: 10.1109/BIFE.2012.138
Database: Compendex
322.
Title: Drinking water source risks management and conservation planning
Authors: Qi, Qing-Qing1, 2 ; Xu, Jian-Xin1 ; Zhang, Ze-Zhong1 ; Zhang, Yun-Feng1
Author affiliation: 1 North China Institute of Water Conservancy and Hydroelectric Power,
Zhengzhou 450008, China
2 Key Lab. of Northwest Water Resources and Environment Ecology of MOE, Xian University
of Technology, Xian 710048, China
Corresponding author: Qi, Q.-Q. ([email protected])
Volume: 162 AISC
Monograph title: Software Engineering and Knowledge Engineering: Theory and Practice Selected Papers from 2012 Int. Conference on Software Engineering, Knowledge Engineering and
Information Engineering, SEKEIE 2012
Issue date: 2012
Pages: 211-215
Language: English
ISSN: 18675662
ISBN-13: 9783642294549
Conference name: 2012 International Conference on Software Engineering, Knowledge
Engineering and Information Engineering, SEKEIE 2012
Conference location: China
Abstract: Now the water quality of drinking water face some austere risk, after the ordination of
"Establish Scientific views on development" so as to promote the environmental protection and
the holding of the sixth environmental meeting, protective measures and guarantee safely in
drinking water source was considered to be the most important thing in environmental work in
China. In order to reduce risk and improve the safety of drinking water source, the paper based on
the man- oriented and sustainable development viewpoints; give some advise to apply scientific
knowledge planning; add humanistic measures; bring forward the idea of restriction/leading blend,
refinement of law and enhance standards. © 2012 Springer-Verlag GmbH.
Main heading: Software engineering
Controlled terms: Conservation - Knowledge engineering - Planning - Sustainable
development - Water quality - Water resources
Uncontrolled terms: Conservation planning - Drinking water sources - Environmental
works - Protective measures - Risks management - Safety of drinking water Scientific knowledge
Classification code: 911.2 Industrial Economics - 723.4 Artificial Intelligence - 723.1
Computer Programming - 454 Environmental Engineering - 453.2 Water Pollution Control
- 444 Water Resources - 403 Urban and Regional Planning and Development
DOI: 10.1007/978-3-642-29455-6_31
Database: Compendex
323.
Title: Tracking and identification for system with dual uncertainties
Authors: Qian, Fu-Cai1, 2 ; Li, Jiang1 ; Zhao, Ping1
2 State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University,
Xi'an 710054, China
Corresponding author: Qian, F.-C.
Volume: 32
Issue: 4
Pages: 839-846
Language: Chinese
ISSN: 10006788
CODEN: XGLSE2
Abstract: An efficient adaptive control scheme is presented for Gaussian white noises stochastic
linear system with unknown parameters. On the one hand, the controller can control the system
operation toward the desired state, on the other hand, it can identify the unknown parameters. The
optimal tradeoff between tracking and identification can be obtained for given utility function.
Simulation results show the validation of the approach developed in this paper.
Main heading: Adaptive control systems
Controlled terms: Robust control
Uncontrolled terms: Adaptive Control - Adaptive control schemes - Gaussian white noise
- Optimal tradeoffs - Stochastic linear systems - System operation - Uncertainty
system - Unknown parameters - Utility functions
Classification code: 731 Automatic Control Principles and Applications - 731.1 Control
Systems
Database: Compendex
324.
Title: Complete statistical characterization of discrete-time LQG and cumulant control
Authors: Qian, Fucai1 ; Gao, Jianjun2 ; Li, Duan3
Author affiliation: 1 School of Automation and Information Engineering, Xi'An University of
Technology, Xi'an Shaanxi 710048, China
2 Department of Automation, School of Electronic Information and Electrical Engineering,
Shanghai Jiao Tong University, Hong Kong, Hong Kong
3 Department of Systems Engineering and Engineering Management, Chinese University of
Hong Kong, Hong Kong, Hong Kong
Corresponding author: Qian, F. ([email protected])
Source title: IEEE Transactions on Automatic Control
Abbreviated source title: IEEE Trans Autom Control
Volume: 57
Issue: 8
Issue date: 2012
Pages: 2110-2115
Language: English
ISSN: 00189286
CODEN: IETAA9
Abstract: As the performance index of the linear-quadratic-Gaussian (LQG) problem is
governed by the noncentral generalized Chi-square distribution, solely controlling the expected
value of the performance index, as the traditional LQG theory aims at, is insufficient to deliver a
satisfactory solution in some situations. While the risk sensitive control does control a specific
weighting sum of various moments of the performance index, the single degree of freedom in
adjusting the weighting coefficients in this specific weighting sum of various moments of the
performance index often prevents the risk sensitive control from generating a desired pattern of
high order moment-distribution. We achieve in this note the complete statistical characterization of
the performance index for the discrete-time LQG formulation. More specifically, we derive a
recursive relationship to obtain cumulants of various orders of the performance index successively.
Parameterized in feedback gain, the optimal feedback control law can be computed off-line by
solving a static polynomial optimization problem, thus serving two design goals: i) To shape the
probability density function (pdf) of the performance index to attain, at least approximately, a
given desired pattern by regulating cumulants of various orders, and ii) to improve the
performance measure of an incumbent solution (generated by the risk sensitive control, for
example) by adjusting the levels of cumulants of various orders. © 2012 IEEE.
Main heading: Polynomials
Controlled terms: Density (specific gravity) - Optimization - Probability density function
- Probability distributions
Uncontrolled terms: Chi-square distribution - Cumulants - Design goal - Expected
values - Feedback gain - Linear quadratic Gaussian - LQG theory - Optimal
feedback control law - Parameterized - Performance indices - Performance measure
- Polynomial optimization - Polynomial optimization problem - Probability density
function (pdf) - Risk sensitive control - Single degree of freedoms - Statistical
characterization - Stochastic control - Weighting coefficient
Classification code: 921.1 Algebra - 921.5 Optimization Techniques - 922.1 Probability
Theory - 931.2 Physical Properties of Gases, Liquids and Solids
DOI: 10.1109/TAC.2011.2179844
Database: Compendex
325.
Title: In situ synthesis and electrical properties of CuW-La2O 3 composites
Authors: Qian, Kun1 ; Liang, Shuhua1 ; Xiao, Peng1 ; Wang, Xianhui1
Technology, Jinhua Road 5, Xi'an, Shaanxi 710048, China
Source title: International Journal of Refractory Metals and Hard Materials
Abbreviated source title: Int J Refract Met Hard Mater
Volume: 31
Pages: 147-151
Language: English
ISSN: 02634368
CODEN: IJRMD5
Abstract: CuW-La2O3 composites were fabricated using an in-situ synthesis. The breakdown
voltage in vacuum, moving trajectory of cathode spots, electrical conductivity, and hardness of
CuW-La2O3 composites were carefully examined. The microstructures were characterized by a
scanning electron microscope (SEM). The results show that CuW-La 2O3 composites have the
maximum hardness of 220HB and the electrical conductivity of 45% IACS when the content of
La2O 3 is 0.75 wt.%. In comparison with CuW alloy, the dielectric strength, arc life and the arc
mobility of the CuW-La2O3 composites increased by 36.9%, 9.7% and 46.6%, respectively. As a
result, the addition of La2O3 is useful to improve the properties of CuW alloys and the in situ
synthesized CuW-La2O3 composites should have excellent arc erosion resistance. © 2011
Elsevier Ltd. All rights reserved.
Main heading: Lanthanum
Controlled terms: Alloys - Electric conductivity - Erosion - Hardness Lanthanum oxides - Microstructure - Powder metallurgy - Scanning electron
microscopy
Uncontrolled terms: Arc erosion - Cathode spot - Dielectric strengths - Electrical
conductivity - In-situ synthesis - In-situ synthesized - In-vacuum - Maximum
hardness - Scanning electron microscopes
Classification code: 951 Materials Science - 933 Solid State Physics - 804 Chemical
Products Generally - 741.1 Light/Optics - 701.1 Electricity: Basic Concepts and
Phenomena - 547.2 Rare Earth Metals - 536 Powder Metallurgy - 531.1 Metallurgy 483 Soil Mechanics and Foundations - 421 Strength of Building Materials; Mechanical
Properties - 407 Maritime and Port Structures; Rivers and Other Waterways
DOI: 10.1016/j.ijrmhm.2011.10.005
Database: Compendex
326.
Title: Hardware implementation of tier1 coding for JPEG2000
Authors: Qiao, Shijie1 ; Yang, Yuan1
Author affiliation: 1 Department of Electronic Engineering, Xi'an University of Technology,
Xi'an 710048, China
Corresponding author: Qiao, S. ([email protected])
Volume: 212 LNEE
Monograph title: Proceedings of the 2012 International Conference on Information Technology
and Software Engineering - Software Engineering and Digital Media Technology
Issue date: 2013
Pages: 657-663
Language: English
ISSN: 18761100
E-ISSN: 18761119
ISBN-13: 9783642345302
Conference name: 2012 International Conference on Information Technology and Software
Engineering, ITSE 2012
Abstract: The tier1 coding is the main compression process in JPEG2000, the coding process is
heavy computation and suitable for hardware implementation. This paper presents hardware
architecture of the tier1 coding for JPEG2000, the whole architecture contains two coding blocks,
one is the bit plane coding and the other is the arithmetic coding. The Verilog HDL modules for
the architecture are designed, simulated and synthesized to Altera's FPGA. The result shows that
the architectures designed in this paper are correct and efficient for JPEG2000. © 2013
Springer-Verlag.
Main heading: Hardware
Controlled terms: Architecture - Digital arithmetic - Digital storage - Field
programmable gate arrays (FPGA) - Information technology - Software engineering
Uncontrolled terms: Arithmetic Coding - Bitplane coding - Coding blocks - Coding
process - Compression process - Hardware architecture - Hardware implementations
- JPEG 2000 - Tier1 coding - Verilog HDL
Classification code: 921.6 Numerical Methods - 903 Information Science - 723.1
Computer Programming - 722.1 Data Storage, Equipment and Techniques - 721.3
Computer Circuits - 605 Small Tools and Hardware - 402 Buildings and Towers
DOI: 10.1007/978-3-642-34531-9_69
Database: Compendex
327.
Title: Provably secure threshold public-key encryption with adaptive security and short
ciphertexts
Authors: Qin, Bo1, 3 ; Wu, Qianhong1, 2 ; Zhang, Lei4 ; Farràs, Oriol1 ; Domingo-Ferrer,
Josep1
Author affiliation: 1 Department of Computer Engineering and Mathematics, Universitat
Rovira i Virgili, Av. Paï
sos Catalans 26, E-43007 Tarragona, Catalonia, Spain
2 Key Lab. of Aerospace Information Security and Trusted Computing, Wuhan University,
Ministry of Education, China
3 Department of Maths, School of Science, Xi'An University of Technology, China
4 Shanghai Key Laboratory of Trustworthy Computing, Software Engineer Institute, East China
Normal University, Shanghai, China
Corresponding author: Wu, Q. ([email protected])
Source title: Information Sciences
Abbreviated source title: Inf Sci
Volume: 210
Pages: 67-80
Language: English
ISSN: 00200255
CODEN: ISIJBC
Publisher: Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States
Abstract: Threshold public-key encryption is a cryptographic primitive allowing decryption
control in group-oriented encryption applications. Existing TPKE schemes suffer from long
ciphertexts with size linear in the number of authorized users or can only achieve non-adaptive
security, which is too weak to capture the capacity of the attackers in the real world. In this paper,
we propose an efficient TPKE scheme with constant-size ciphertexts and adaptive security.
Security is proven under the decision Bilinear Diffie-Hellman Exponentiation assumption in the
standard model. Then we extend our basic construction with efficient trade-offs between the key
size and the ciphertext size. Finally, we illustrate improvements to transmit multiple secret session
keys in one session with almost no extra cost. © 2012 Elsevier Inc. All rights reserved.
Main heading: Public key cryptography
Controlled terms: Access control
Uncontrolled terms: Adaptive security - Authorized users - Ciphertexts Cryptographic primitives - Diffie Hellman - Exponentiations - Key sizes - Provably
secure - Public key cryptosystems - Public-key encryption
- Session key - The
standard model
Classification code: 723 Computer Software, Data Handling and Applications
DOI: 10.1016/j.ins.2012.04.038
Database: Compendex
328.
Title: A new identity based signcryption scheme in the standard model
Authors: Qin, Bo1, 2 ; Wang, Huaqun1, 3 ; Wu, Qianhong1, 4 ; Liu, Jianwei5 ; Domingo-Ferrer,
Josep1
Author affiliation: 1 Universitat Rovira I Virgili, Department of Computer Engineering and
Mathematics, UNESCO, Tarragona, Catalonia, Spain
2 Department of Mathematics, School of Science, Xi'an University of Technology, China
3 School of Information Engineering, Dalian Ocean University, China
4 School of Computer, Wuhan University, China
5 School of Electronic and Information Engineering, Beijing University of Aeronautics and
Astronautics, China
Corresponding author: Qin, B. ([email protected])
Source title: Proceedings of the 2012 4th International Conference on Intelligent Networking
and Collaborative Systems, INCoS 2012
Abbreviated source title: Proc. Int. Conf. Intelligent Networking Collab. Syst., INCoS
Monograph title: Proceedings of the 2012 4th International Conference on Intelligent
Networking and Collaborative Systems, INCoS 2012
Issue date: 2012
Pages: 606-611
Language: English
ISBN-13: 9780769548081
Conference name: 2012 4th International Conference on Intelligent Networking and
Collaborative Systems, INCoS 2012
Conference location: Bucharest, Romania
United States
Abstract: Signcryption is a useful cryptographic primitive which simultaneously performs
encryption and signature with cost less than the signature-then- encryption approach.
Identity-based signcryption (IBSC) eliminates the complicated management of certificates in
signcryption schemes in the traditional public-key infrastructure (PKI) setting. Most IBSC
schemes are constructed in the random oracle model, while it is unknown how to instantiate a
really ''random" oracle in the real world. By exploiting Boneh et al.'s strongly unforgeable
signature and Paterson et al.'s identity-based signature, this paper proposes a new IBSC scheme in
the standard model. It is proven that our IBSC scheme satisfies semantic security and strong
unforgeability under the bilinear decision Diffie-Hellman (BDDH) assumption. The proofs do not
rely on random oracles. Performance analysis shows that our scheme is also efficient and practical.
© 2012 IEEE.
Main heading: Cryptography
Controlled terms: Semantics
Uncontrolled terms: Bilinear pairing - Semantic security - Signcryption - Standard
model - strong unforgeability
- 723 Computer Software, Data Handling and Applications - 903.2 Information
Dissemination
DOI: 10.1109/iNCoS.2012.43
Database: Compendex
329.
Title: Distributed privacy-preserving secure aggregation in vehicular communication
Authors: Qin, Bo1, 2 ; Wu, Qianhong1, 3 ; Domingo-Ferrer, Josep1 ; Susilo, Willy4
Author affiliation: 1 Department of Computer Engineering and Mathematics, Universitat
Rovira i Virgili, Tarragona, Spain
2 Department of Mathematics, School of Science, Xi'an University of Technology, China
3 School of Computer, Wuhan University, China
4 Centre for Computer and Information Security Research, School of Computer Science and
Software Engineering, University of Wollongong, Wollongong, Australia
Corresponding author: Qin, B. ([email protected])
Source title: Proceedings - 3rd IEEE International Conference on Intelligent Networking and
Collaborative Systems, INCoS 2011
Abbreviated source title: Proc. - IEEE Int. Conf. Intelligent Networking Collab. Syst., INCoS
Monograph title: Proceedings - 3rd IEEE International Conference on Intelligent Networking
and Collaborative Systems, INCoS 2011
Issue date: 2011
Pages: 100-107
Language: English
ISBN-13: 9780769545790
Conference name: 3rd IEEE International Conference on Intelligent Networking and
CollaborativeSystems, INCoS 2011
Conference date: November 30, 2011 - December 2, 2011
Conference location: Fukuoka, Japan
United States
Abstract: Vehicular ad hoc networks (VANETs), formed by computers embedded in vehicles and
the traffic infrastructure, are expected to develop in the near future to improve traffic safety and
efficiency. To this end, VANETs should be designed to be resistant against various abuses and
attacks. In this paper, we first review the existing proposals to provide security, privacy, and data
aggregation in vehicle-to-vehicle communication. We then address the fundamental issue of
achieving these conflicting properties in a unified solution, having observed that separate efforts
cannot fulfill the VANET design objectives. A set of new mechanisms are suggested for efficiently
managing identities and securely compressing cryptographic witnesses, which are among the
major obstacles to the deployment of strong security mechanisms in VANETs. © 2011 IEEE.
Main heading: Vehicle to vehicle communications
Controlled terms: Ad hoc networks - Authentication - Cryptography - Embedded
systems - Vehicular ad hoc networks
Uncontrolled terms: Data aggregation - Design objectives - In-vehicle - New
mechanisms - Privacy preserving - Security mechanism - Traffic infrastructure Traffic safety - VANETs - Vehicle-to-vehicle communication
- Vehicular
communications
Software, Data Handling and Applications
DOI: 10.1109/INCoS.2011.78
Database: Compendex
330.
Title: Two-grid method for characteristics finite-element solution of 2d nonlinear
convection-dominated diffusion problem
Authors: Qin, Xin-Qiang1, 2 ; Ma, Yi-Chen1 ; Zhang, Yin2
Author affiliation: 1 School of Sciences, Xi'an Jiaotong University, Xi'an 710049, China
2 School of Sciences, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Qin, X.-Q. ([email protected])
Source title: Applied Mathematics and Mechanics (English Edition)
Abbreviated source title: Appl. Math. Mech. Engl. Ed.
Volume: 26
Issue: 11
Pages: 1506-1514
Language: English
ISSN: 02534827
CODEN: AMMEEQ
Publisher: Springer Netherlands, Van Godewijckstraat 30, Dordrecht, 3311, Netherlands
Abstract: For two-dimension nonlinear convection diffusion equation, a two-grid method of
characteristics finite-element solution was constructed. In this method the nonlinear iterations is
only to execute on the coarse grid and the fine-grid solution can be obtained in a single linear step.
For the nonlinear convection-dominated diffusion equation, this method can not only stabilize the
numerical oscillation but also accelerate the convergence and improve the computational
efficiency. The error analysis demonstrates if the mesh sizes between coarse-grid and fine-grid
satisfy the certain relationship, the two-grid solution and the characteristics finite-element solution
have the same order of accuracy. The numerical example confirms that the two-grid method is
more efficient than that of characteristics finite-element method. © 2005 Editorial Committee of
Appl. Math. Mech.
Main heading: Error analysis
Controlled terms: Partial differential equations
Uncontrolled terms: Characteristics finite-element - Coarse grid - Convection-diffusion
equations - Convection-dominated diffusion - Convection-dominated diffusion problems
- convergence - Mesh size - Nonlinear convection diffusion equation - Nonlinear
iterations - Numerical example
- Numerical oscillation - Order of accuracy Two-dimension - Two-grid methods
Classification code: 921.2 Calculus - 921.6 Numerical Methods
DOI: 10.1007/BF03246258
Database: Compendex
331.
Title: Domain decomposition method based on ridge basis for solving differential equations
Authors: Qin, Xinqiang1 ; Su, Pengxiang1 ; Duan, Xianbao1 ; Miao, Baoshan1
Author affiliation: 1 Department of Mathematics, Xi'an University of Technology, Xi'an,
Corresponding author: Qin, X. ([email protected])
Issue date: 2012
Pages: 479-483
Language: English
ISBN-13: 9781467329750
2012
United States
Abstract: A numerical method based on combining radial basis meshless method with domain
decomposition is presented for differential equations. By decomposing the solution domain of
the differential equation, an approximate function on the subdomain is constructed that satisfied
the demand of interpolation. The numerical results show that the new method is effective. The
numerical solution is more stable with domain decomposition than that of without domain
decomposition and is more efficiency by using ridge basis methless method for the computation of
differential equations. © 2012 IEEE.
Main heading: Domain decomposition methods
Controlled terms: Differential equations - Numerical methods - Systems engineering
Uncontrolled terms: Approximate function - Domain decompositions - Mesh-less
methods - Numerical results - Numerical solution - Radial basis meshless methods Ridge Basis - Subdomain
Classification code: 912 Industrial Engineering and Management - 921.2 Calculus 921.6 Numerical Methods - 961 Systems Science
DOI: 10.1109/SYSoSE.2012.6333562
Database: Compendex
332.
Title: Study on the three-graded random aggregate model of concrete beam with initial
imperfection
Authors: Qin, Yuan1 ; Chai, Junrui1 ; Dang, Faning1
Author affiliation: 1 College of Hydroelectric Engineering, Xi'an University of Technology,
Xi'an 710048, Shaanxi Province, China
Corresponding author: Qin, Y. ([email protected])
Volume: 505
Monograph title: Manufacturing Engineering and Process
Issue date: 2012
Pages: 121-126
Language: English
ISSN: 10226680
ISBN-13: 9783037854051
Conference name: 2012 International Conference on Manufacturing Engineering and Process,
ICMEP 2012
Conference location: Kunming, China
Abstract: In this paper, the three-graded random aggregate model of concrete beam is
established by using the Monte Carlo method. And in order to close to the engineering practice,
the initial imperfection is putted in to this model. Then the impact load is applied to the beam, and
the numerical calculation is carried out, the results of numerical simulation and experiments of
previous are compared. It is found that the damage process of concrete and calculation results are
similar to the experimental results of previous. Thus proof that the model is suitable to the
engineering practice. © (2012) Trans Tech Publications.
Main heading: Aggregates
Controlled terms: Computer simulation - Concrete beams and girders - Finite element
method - Industrial engineering - Monte Carlo methods
Uncontrolled terms: Concrete beam - Damage element - Damage process Engineering practices - Impact loads - Initial imperfection - Numerical calculation Random aggregate model
Classification code: 406 Highway Engineering - 412 Concrete - 723.5 Computer
Applications - 912.1 Industrial Engineering - 921.6 Numerical Methods - 922.2
Mathematical Statistics
Database: Compendex
333.
Title: Numerical analysis on the modified model to the dynamic strength of defective concrete
beam
Authors: Qin, Yuan1 ; Chai, Junrui1, 2 ; Dang, Faning1
Author affiliation: 1 College of Hydraulic and Hydropower Engineering, Xi'an University of
2 College of Civil and Hydropower Engineering, Three Gorges University, Yichang 443002,
Hubei, China
Corresponding author: Qin, Y. ([email protected])
Source title: Tumu Jianzhu yu Huanjing Gongcheng/Journal of Civil, Architectural and
Environmental Engineering
Abbreviated source title: Tumu Jianzhu yu Huanjing Gongcheng
Volume: 34
Issue: 4
Pages: 85-90
Language: Chinese
ISSN: 16744764
CODEN: TJYHA7
Publisher: China National Publication Industry Trading Corporation, P.O. Box 782, Beijing,
100011, China
Abstract: By improving the traditional digital concrete modeling method, the new defective
concrete model was established. Three cases were simulated based on this model. The influence of
initial defectiveness on the dynamic strength was investigated. The result shows that: 1) At initial
stage, the influence of the initial defectiveness on the dynamic strength becomes more obviously
with the increasing of the loading speed; 2) Regardless of the same loading speed, the influence
becomes less obviously when the load reaches the strength point of the concrete; 3)The simulation
result is compared with the test result, and it is deduced that the new model has higher
computational accuracy and the result is more rational, and it can take the place of the traditional
digital concrete model in practice.
Controlled terms: Concretes - Loading - Numerical analysis
Uncontrolled terms: Computational accuracy - Concrete beam - Concrete model Concrete modeling - Dynamic strength - Initial defects - Initial stages - Loading
speed - Microscopic models - Modified model - Three-point-bending
Classification code: 412 Concrete - 672 Naval Vessels - 723.5 Computer Applications 921.6 Numerical Methods
Database: Compendex
334.
Title: The harmonics control method of inverter in induction heating power supply
Authors: Qingfeng, Liu1 ; Zhaoxia, Leng1 ; Jinkun, Sun1 ; Huamin, Wang1
Corresponding author: Qingfeng, L. ([email protected])
Volume: 155 LNEE
Monograph title: Advances in Electric and Electronics
Issue date: 2012
Pages: 461-468
Language: English
ISSN: 18761100
E-ISSN: 18761119
ISBN-13: 9783642287435
Conference name: 2012 2nd International Conference on Electric and Electronics, EEIC 2012
Abstract: In this paper, the induction heating power supply adopting cascaded multilevel inverter
was the study object. For improving the quality of output voltage in induction heating power
supply inverter, a harmonics control mean of output voltage by selecting switching angles were
presented. The harmonics equation system of output voltage in two modules cascaded multilevel
inverter were established based on the Fourier expression of the output voltage. Based on the work
characteristic of induction hearting power supply, the calculation method of eliminating harmonics
and the reasonable advice about switching angles were given. Simulation and experiment results
shown the total harmonic distortion (THD) of output voltage can be reduced by adopting the
harmonics control mean presented in this paper. © 2012 Springer-Verlag GmbH.
Main heading: Electric inverters
Controlled terms: Electric power systems - Land vehicle propulsion - Wave filters
Uncontrolled terms: Calculation methods - Cascaded multilevel inverters - Control
methods - Equation systems - Fourier - induction heating power supply - inverter
- Output voltages - Power supply - Switching angles - Total harmonic distortion
(THD)
Classification code: 682.1.2 Locomotives - 703.2 Electric Filters - 704.2 Electric
Equipment - 706.1 Electric Power Systems
DOI: 10.1007/978-3-642-28744-2_60
Database: Compendex
335.
Title: A method of facial texture mapping based on CT three-dimensional model
Authors: Qiu, Han1 ; Yu, Lei2 ; Zhang, Guofeng3
Author affiliation: 1 College of Computer Science, Xi'an Polytechnic University, Xi'an 710048,
China
2 Faculty of Computer Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
3 Institute of Visualization Technology, Northwest University, Xi'an 710069, China
Corresponding author: Qiu, H. ([email protected])
Source title: Journal of Information and Computational Science
Abbreviated source title: J. Inf. Comput. Sci.
Volume: 9
Issue: 7
Pages: 1843-1854
Language: English
ISSN: 15487741
Publisher: Binary Information Press, Flat F 8th Floor, Block 3, Tanner Garden, 18 Tanner Road,
Hong Kong
Abstract: Building realistic 3D face models is a challenging task in the field of computer
graphics. This paper proposed a method for building 3D face model. First, the facial feature points
are extracted from the front and profile views of the specific face, and compared with the
corresponding points in the generic 3D face model. Finally, a cylindrical texture map is built from
the two image to generate a realistic 3D face model. During this process, multi-resolution image
fusion with image Laplacian Pyramid is used for merge the boundary. 1548-7741/Copyright ©
2012 Binary Information Press.
Controlled terms: Computer graphics - Face recognition - Image fusion - Image
texture - Radial basis function networks
Uncontrolled terms: 3D face models - CT data - Face modeling - Facial feature
points - Facial textures - Laplacian Pyramid - Multiresolution images - Radial basis
functions - Texture mapping - Texture maps - Three-dimensional model
Classification code: 716 Telecommunication; Radar, Radio and Television
Database: Compendex
- 723 Computer
336.
Title: An algorithm of degenerative vertebral contour detection in 3D space
Authors: Qiu, Han1, 2 ; Zhu, Hong1
Author affiliation: 1 The Faculty of Automation and Information Engineering, Xi'an
2 The School of Computer Science, Xi'an Polytechnic University, Xi'an 710048, China
Corresponding author: Qiu, H. ([email protected])
Volume: 8
Issue: 4
Pages: 1765-1773
Language: English
ISSN: 15539105
Abstract: Human spine structure is very complicated with spatial positions intertwined or
crisscrossed. It is difficult to use the traditional segmentation method to segment every individual
vertebra in medical image. There is no way to reconstruct the single vertebra 3-D image but to
obtain a complete vertebra 3-D image. This paper suggests a kind of 3-D spatial image thinning
algorithm which can be used to achieve the detection of vertebral contour structure in 3-D space
and to segment the conjoined bone structure image. The experiment results indicate that this
algorithm is of the significant segmentation eifects of the degenerated vertebral 3-D image and
achieving the due purpose. © 2011 by Binary Information Press.
Controlled terms: Algorithms - Image segmentation - Musculoskeletal system
Uncontrolled terms: 3-D image - 3-D space - 3D thinning - Bone structure Contour detection - Contour structure - Human spine - Medical images Segmentation methods - Spatial images - Spatial positions
Classification code: 461.3 Biomechanics, Bionics and Biomimetics - 723 Computer
Software, Data Handling and Applications - 921 Mathematics
Database: Compendex
337.
Title: Microstructure and properties of CrFeNiCuMoCo high-entropy alloy prepared by powder
metallurgy
Authors: Qiu, Xing-Wu1, 2 ; Zhang, Yun-Peng1
2 Department of Materials Engineering, Sichuan College of Architectural Technology, Deyang
618000, China
Corresponding author: Qiu, X.-W. ([email protected])
Source title: Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of
Powder Metallurgy
Abbreviated source title: Fenmo Yejin Cailiao Kexue yu Gongcheng
Volume: 17
Issue: 3
Pages: 377-382
Language: Chinese
ISSN: 16730224
Publisher: Central South University, Lushan Nanlu, Changsha, 410043, China
Abstract: The CrFeNiCuMoCo high-entropy alloy was prepared by powder metallurgy method.
Using scanning electron microscopy with spectroscopy (SEM/EDS), X-ray diffraction,
micro/vickers hardness tester, electrochemical workstation and material testing machine analyze
the microstructure, phase composition, hardness, corrosion resistance, compression properties of
the CrFeNiCuMoCo high-entropy alloy, respectively. The results show that the morphology of the
CrFeNiCuMoCo high-entropy alloy is simple, the phase mainly composes of FCC and BCC; Mo
and Cu are segregated in the alloy; the alloy shows excellent corrosion resistance, the corrosion
current density decreases by an order of magnitude compared with 304 stainless steel; the
difference in atom radius among components leads to larger lattice distortion, blocks the
dislocation motion and enhances the solid solution strengthening effect. Since Mo elements can
refine grains, the CrFeNiCuMoCo high-entropy alloy has high hardness of 485 HV and
compressive strength of 1385 MPa. The type of alloy fracture is brittle cleavage fracture.
Main heading: Molybdenum
Controlled terms: Alloys - Brittle fracture - Corrosion resistance - Entropy Hardness - Microstructure - Powder metallurgy - Scanning electron microscopy - X
ray diffraction
Uncontrolled terms: 304 stainless steel - Brittle cleavage - Compression properties Corrosion current densities - CrFeNiCuMoCo - Dislocation motion - Excellent
corrosion resistances - High entropy alloys - High hardness - Lattice distortions
Material testing - Microstructure and properties - Mo element - SEM/EDS - Solid
solution strengthening
Classification code: 933.1.1 Crystal Lattice - 933 Solid State Physics - 741.1
Light/Optics - 641.1 Thermodynamics - 951 Materials Science - 543.3 Molybdenum
and Alloys - 536 Powder Metallurgy - 531.1 Metallurgy - 421 Strength of Building
Materials; Mechanical Properties - 539.1 Metals Corrosion
Database: Compendex
338.
Title: Research on stability of fault f5 replacement tunnel and its intersection tunnel and design
of supporting structure in Jinping I hydropower station
Authors: Qu, Xing1 ; Li, Ning1 ; Zhou, Zhong2 ; Sun, Hongchao3
2 Hydrochina Chengdu Engineering Corporation, Chengdu, Sichuan 610072, China
3 Dongfang Electric Corporation, Chengdu, Sichuan 611731, China
Corresponding author: Qu, X. ([email protected])
Engineering
Volume: 31
Issue: SUPPL. 2
Pages: 3571-3578
Language: Chinese
ISSN: 10006915
CODEN: YLGXF5
Abstract: f5 Fault is the largest fault in the dam area of Jinping I hydropower station. In order to
improve the quality of rock mass of dam abutment, adits f5-1, f5-2 and 4 inclined shaft were used
to replace the fault f5. Based on the extensive research, the necessity of replacement grid setting
was discussed. 3D finite element method was employed to simulate natural topography and
geological conditions and excavation. The stability of replacement grid was evaluated by stress
and deformation, and compared with measured data. The results show that the adits f5-1and f5-2
meet the stability requirement of the construction period, but supporting force in local tunnel is
insufficient. For adit f5-2, two kinds of reinforced measures, prestressed anchor bolt, steel arch
centering, thick shotcret and lining in advance, were adopted, these measures can makes the adit to
meet stability requirements. Taking the other factors into consideration, it is believed that lining in
advance is more reasonable. For cross parts of adit and inclined shaft, inclined shaft were
excavated after lining before and after 10 m of cross parts of adit were completed, the maximum
compressive stress of lining is less than 6.5 MPa and the maximum tensile stress is less than 1.7
MPa. For cross parts of adit f5-1 and force transmission tunnel # 5, first proposed in # 5 tunnel
applied lining, then consolidation grouting on the thinner rock pillar, last for the construction of
the adit. The numerical analysis results provide a scientific basis for the design of lining in
replacement tunnel, and has guiding meaning to the other similar projects.
Main heading: Tunnels
Controlled terms: Computer simulation - Concrete construction - Finite element method
- Fluid mechanics - Linings - Rock mechanics - Shore protection - Stability
Uncontrolled terms: 3-D finite element method - Broken rock - Construction period Dam abutments - Force transmission - Geological conditions - Hydraulic engineering
- Inclined shaft - Jinping I Hydropower Station - Prestressed anchor-bolt Replacement grid - Rock mass - Rock pillar - Stability requirements - Steel arches
- Stress and deformation - Supporting structure
Classification code: 951 Materials Science - 931.1 Mechanics - 921.6 Numerical
Methods - 723.5 Computer Applications - 502.1 Mine and Quarry Operations - 412
Concrete - 407.1 Maritime Structures - 405 Construction Equipment and Methods;
Surveying - 401.2 Tunnels and Tunneling
Database: Compendex
339.
Title: Application of the MITK based intelligent volume rendering by Ray-leaping method in
medical image visualization
Authors: Qu, Zhen1 ; Qin, Xinqiang1
Author affiliation: 1 School of Sciences, Xi'an University of Technology, Xi'an, Shaanxi,
710054, China
Corresponding author: Qu, Z. ([email protected])
Source title: Proceedings - 2011 International Conference of Information Technology, Computer
Abbreviated source title: Proc. - Int. Conf. Inf. Technol., Comput. Eng. Manage. Sci., ICM
Volume: 3
Monograph title: Proceedings - 2011 International Conference of Information Technology,
Computer Engineering and Management Sciences, ICM 2011
Issue date: 2011
Pages: 11-14
Language: English
ISBN-13: 9780769545226
Conference name: 2011 International Conference on Information Technology, Computer
Conference location: Nanjing, Jiangsu, China
Sponsor: The International Information Management Association; California State University
San Bernardino; Nanjing University of Information Science and Technology; US Jiangsu
Economy Trade and Culture Association; CSR Zhuzhou Institute Co., LTD
United States
Abstract: Ray casting Algorithm is one of the basic algorithms used in the volume rendering of
three dimensional data, which has a good operating and a simple description, but there are some
obvious problems on the rendering speed and the precision. In this paper, a new intelligent volume
rendering method, integrated the particle swarm optimization on transfer function design with the
Ray-leaping rendering algorithm, is described, which make up the lack of rendering speed and
precision in traditional ray casting algorithm. Then, the MITK is used to render a skull CT image
sequence. © 2011 IEEE.
Controlled terms: Algorithms - Computerized tomography - Information technology Management science - Particle swarm optimization (PSO) - Precision engineering Transfer functions - Visualization - Volume rendering
Uncontrolled terms: 3D reconstruction - CT Image - Medical images - MITK Particle swarm - Ray casting algorithm - Ray-leaping - Rendering algorithms Three-dimensional data - Volume rendering methods
Classification code: 912.2 Management - 903 Information Science - 902.1 Engineering
Graphics - 921 Mathematics - 801 Chemistry - 723 Computer Software, Data Handling
and Applications - 531 Metallurgy and Metallography - 761 Nanotechnology
DOI: 10.1109/ICM.2011.190
Database: Compendex
340.
Title: Predicting urban runoff under different surface conditions in Xi'an, China with
DRAINMOD
Authors: Quan, Quan1 ; Luo, Wan1 ; Shen, Bing1 ; Zhang, Gao-feng2 ; Dong, Li-Yuan3
Author affiliation: 1 Water Resources Research Institute, Xi'an University of Technology,
P.O.Box 748 Xi'an, Shaanxi 710048, China
2 Xi'an water conservancy bureau, Shaanxi 710007, China
3 Shandong urban architectural design institute, Shandong 250000, China
Corresponding author: Quan, Q. ([email protected])
Volume: 588-589
Monograph title: Advances in Mechanics Engineering
Issue date: 2012
Pages: 2083-2087
Language: English
ISSN: 10226680
ISBN-13: 9783037855287
Conference name: 2012 International Conference on Advances in Mechanics Engineering,
ICAME 2012
Conference location: Hong kong
Abstract: Increasing impermeable surface area has become a serious burden for drainage of
urban stormwater. It is thus important to know how much surface runoff may be generated by
storms of varying intensity and duration, especially on a continual daily basis. In this paper, the
field hydrology model-DRAINMOD was used to simulate daily surface runoff under different
surface condition in Xi'an, China. As a major hydrological components in DRAINMOD, daily
evapotranspirations were calculated with the FAO Penman-Monteith method and read into the
model. Infiltration parameters were considered as calibration factors in the modeling process.
Available data from a local rainfall-runoff experiment were used for model calibration by
matching the model predicted surface runoff with the measured values on an event basis. The
calibrated model was then used for long term simulations in order to examine the impact of
varying climatic conditions and land cover on urban runoff. The modeling results may provide a
practical guidance for city storm water management. © (2012) Trans Tech Publications,
Switzerland.
Main heading: Runoff
Controlled terms: Calibration - Computer simulation - Infiltration - Sewage Storms - Water management
Uncontrolled terms: Calibrated model - Calibration factors - Climatic conditions Daily evapotranspirations - DRAINMOD - Field hydrology - Impermeable surface Infiltration parameters - Land cover - Long term simulation
- Model calibration Modeling process - Modeling results - Penman-Monteith method - Practical guidance
- Rainfall runoff - Simulation - Stormwater managements - Stormwaters - Surface
conditions - Surface runoffs - Urban runoff - Urban stormwater
Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring
Instruments - 723.5 Computer Applications - 944 Moisture, Pressure and Temperature, and
Radiation Measuring Instruments - 452.1 Sewage - 444.1 Surface Water - 444 Water
Resources - 443.3 Precipitation - 446 Waterworks
Database: Compendex
341.
Title: Experimental study of the impact of rainfall characteristics on runoff generation and soil
erosion
Authors: Ran, Qihua1 ; Su, Danyang1 ; Li, Peng2 ; He, Zhiguo3
Author affiliation: 1 Department of Hydraulic Engineering, Zhejiang University, Hangzhou
310058, China
2 Key Laboratory of Northwest Water Resources and Environment Ecology, Xi'an University of
3 Department of Ocean Science and Engineering, Zhejiang University, Hangzhou 310058, China
Corresponding author: He, Z. ([email protected])
Source title: Journal of Hydrology
Abbreviated source title: J. Hydrol.
Volume: 424-425
Pages: 99-111
Language: English
ISSN: 00221694
CODEN: JHYDA7
Abstract: The impact of rainfall characteristics on runoff generation and soil erosion are not fully
understood despite their importance. In this study, a series of laboratory experiments,
systematically considering different rainfall intensities, durations, moving directions, rainfall
positions, and no-rainfall intervals, were conducted to investigate the impacts of rainfall
characteristics on runoff generation and soil erosion. Significant differences, including hydrograph,
sediment graph, soil water content, and infiltration depth (depth of wetting front), were observed.
The following conclusions are drawn for the studied rainfall characteristics and soil from this
study: (1) when compared with moving upstream rainfall scenarios (MURSs), moving
downstream rainfall scenarios (MDRSs) can generally be characterized by hydrographs with a
later rise and higher runoff peak for most of the rainfall events; (2) surface sealing changes the
infiltration pattern so that MURS generally produce more total runoff than MDRS, and for some
rainfall events MDRS generate lower runoff peak than MURS, which is different from what has
been widely reported; (3) with the increase in the runoff peak, the erosion peak increases first and
then decreases, indicating a switch from transport-limited erosion to detachment-limited erosion;
(4) the increase ratio of underground water content for MURS is lower than MDRS; (5) rainfall
duration is an important factor in soil crack occurrence. Not only does this study expand the
understanding of hydrologic response and erosion, it also provides an important database for the
hydrology community. © 2012 Elsevier B.V.
Main heading: Infiltration
Controlled terms: Anoxic sediments - Erosion - Groundwater - Rain - Runoff Sediment transport - Soil moisture
Uncontrolled terms: Experimental studies - Hydrographs - Hydrologic response Laboratory experiments - Moving direction - Rainfall characteristics - Rainfall duration
- Rainfall event - Rainfall intensity - Runoff generation
- Soil erosion - Soil
water content - Surface sealing - Wetting fronts
Classification code: 443.3 Precipitation - 444.1 Surface Water - 444.2 Groundwater 483 Soil Mechanics and Foundations - 483.1 Soils and Soil Mechanics
DOI: 10.1016/j.jhydrol.2011.12.035
Database: Compendex
342.
Title: Crystal structure of a new quaternary Mg-Zn-Ca-Li phase
Authors: Remennik, Sergei1 ; Xu, Chunjie2 ; Brant, Reut1 ; Meshi, Louisa3 ; Shechtman, Dan1,
4
Author affiliation: 1 Department of Materials Engineering, Technion-Israel Institute of
Technology, Technion City, Haifa 32000, Israel
2 School of Materials Science and Engineering, Xi'An University of Technology, Xi'an, Shaanxi
710048, China
3 Department of Materials Engineering, Ben-Gurion University of the Negev, Beer Sheva 84105,
Israel
4 MSE, Iowa State University, Ames, IA 50011, United States
Corresponding author: Remennik, S. ([email protected])
Source title: Intermetallics
Abbreviated source title: Intermet
Volume: 22
Pages: 62-67
Language: English
ISSN: 09669795
CODEN: IERME5
Abstract: In course of a study of high strength, ductile alloys based on the Mg-Li system, we
have identified a new quaternary phase with a composition of Mg 31Zn26Ca13Li8. The structure
of this phase was investigated by Transmission Electron Microscopy (TEM) using the Convergent
Beam Electron Diffraction (CBED) technique. Full atomic model is proposed using direct
methods applied to powder X-ray diffraction data. The phase has a cubic primitive unit cell with
lattice parameter a = 9.386(8) and its crystal symmetry belongs to the Pm3 (No. 200) space group.
The unit cell of the new phase exhibits a new structure type, which is a variant of the Mg 2Zn11
structure. The reliability factors characterizing the Rietveld refinement procedure are: Rp = 8.6%,
Rwp = 12.4%, RB = 6.9% and Rf = 4.4%. © 2011 Elsevier Ltd. All rights reserved.
Main heading: Crystal symmetry
Controlled terms: Chemical analysis - Electrons - High strength alloys Intermetallics - Rietveld refinement - Transmission electron microscopy - X ray
crystallography - X ray diffraction - Zinc
Uncontrolled terms: Atomic models - Convergent-beam electron diffraction - Direct
method - Ductile alloys - F. Diffraction - High strength - Phase identification Powder X ray diffraction - Reliability factor - Space Groups - Structure type Unit cells
Classification code: 933.1.1 Crystal Lattice - 804 Chemical Products Generally - 801
Chemistry - 741.3 Optical Devices and Systems - 701.1 Electricity: Basic Concepts and
Phenomena - 546.3 Zinc and Alloys - 531.1 Metallurgy
DOI: 10.1016/j.intermet.2011.09.013
Database: Compendex
343.
Title: Research on the control strategy of energy management system for low capability
microgrid
Authors: Ren, Bi-Ying1 ; Tong, Xiang-Qian1 ; Sun, Xiang-Dong1 ; Zhang, Qi1
Author affiliation: 1 Department of Electrical Engineering and Automation, Xi'An University
of Technology, Xi'an, China
Corresponding author: Ren, B.-Y. ([email protected])
Source title: PEAM 2011 - Proceedings: 2011 IEEE Power Engineering and Automation
Conference
Abbreviated source title: PEAM: - Proc.: IEEE Power Eng. Autom. Conf.
Volume: 2
Monograph title: PEAM 2011 - Proceedings: 2011 IEEE Power Engineering and Automation
Conference
Issue date: 2011
Pages: 441-444
Language: English
ISBN-13: 9781424496884
Conference name: 2011 IEEE Power Engineering and Automation Conference, PEAM 2011
Sponsor: IEEE Beijing Section; Wuhan University; Tongji University; Xi'an Jiaotong University;
Beijing University of Aeronautics and Astronautics
United States
Abstract: The energy management system(EMS) is very important for the stable operation of
microgrid with multi-micro sources. In this paper, the model of microgrid consisting of micro
sources such as PV, storage battery and fuel cells is built. In the grid-connected mode and
islanding mode, the EMS control strategy is designed and analyzed. Through the EMS
corresponding control, each micro sources unit controller performs the transfer between the
working manners, the transfer between the control methods, the output of active power and
reactive power to ensure microgrid operate stably. Under the various operation conditions, the
simulation results verifies the proposed EMS control strategy correctness and feasible. © 2011
IEEE.
Main heading: Energy management
Controlled terms: Electric batteries - Electric power supplies to apparatus - Management
Uncontrolled terms: Active power - Control methods - Control strategies - Energy
management system - energy management system (EMS) - Grid-connected modes Islanding - Micro grid - Micro sources - Operation conditions - Stable operation
- Storage battery - Unit controller
Classification code: 525 Energy Management and Conversion - 702.1 Electric Batteries 715.2 Industrial Electronic Equipment - 912.2 Management
DOI: 10.1109/PEAM.2011.6134978
Database: Compendex
344.
Title: Analysis and design of an LCL filter for the three-level grid-connected inverter
Authors: Ren, Biying1 ; Sun, Xiangdong1 ; An, Shaoliang1 ; Cao, Xiangui1 ; Zhang, Qi1
Xi'an, China
Corresponding author: Ren, B.
Asia, IPEMC
Volume: 3
Issue date: 2012
Pages: 2023-2027
Language: English
ISBN-13: 9781457720864
United States
Abstract: A neutral-point-clamped (NPC) three-level inverter is used more and more in the
grid-connected power generation system. In order to achieve the lower current harmonic, an LCL
filter is widely utilized due to its superior filtering performance. Passive and active damping
control are studied to solve the resonant problem appearing in an LCL filter, active damping
control overcomes the weakness of power loss existing in the passive damping method, thus it
gradually becomes one of research focus. According to the feature of the NPC three-level
grid-connected inverter and active damping method based on feedback control of the capacitor
current, design method of the LCL filter is thoroughly discussed in this paper, simulation and
experimental results show that the filter design method is right. © 2012 IEEE.
Main heading: Damping
Controlled terms: Design - Motion control - Power electronics
Uncontrolled terms: Active damping - Analysis and design - Capacitor current Current harmonics - Design method - Filter designs - Filtering performance - Grid
connected inverters - Grid-connected - LCL filters
- Parameter designs - Passive
damping - Power generation systems - Power-losses - Three-level - Three-level
inverters
Classification code: 408 Structural Design - 715.2 Industrial Electronic Equipment 731.3 Specific Variables Control - 931.1 Mechanics
DOI: 10.1109/IPEMC.2012.6259152
Database: Compendex
345.
Title: Uncovering missing symbols in communication with filtered chaotic signals
Authors: Ren, Hai-Peng1, 2 ; Baptista, Murilo S.2 ; Grebogi, Celso2
Author affiliation: 1 Department of Information and Control Engineering, Xi'An University of
2 Institute for Complex System and Mathematical Biology, SUPA, University of Aberdeen,
Aberdeen, AB24 3UE, United Kingdom
Corresponding author: Ren, H.-P. ([email protected])
Source title: International Journal of Bifurcation and Chaos
Abbreviated source title: Int. J. Bifurcation Chaos
Volume: 22
Issue: 8
Language: English
ISSN: 02181274
Singapore
Abstract: We investigate the physical modifications caused by a linear filter in a chaotic
trajectory. We show that while the filter strongly modifies the topological characteristics of the
chaotic signal, it might not alter its information content. We propose a chaos-based
communication system that takes advantage of this fundamental characteristic of the dynamics.
We devise procedures both to recover all the symbols at the receiver end and to decode the
received higher-dimensional filtered chaotic signal by using techniques from the theory of pattern
recognition. Our results show that a message bearing chaotic signal can be transmitted over a low
bandwidth physical channel and be decoded with a low decoding bit error rate. © 2012 World
Scientific Publishing Company.
Main heading: Signal receivers
Controlled terms: Communication systems - Pattern recognition - Support vector
machines - Topology
Uncontrolled terms: Chaos-based communication systems - Chaotic communications Chaotic signal - Chaotic trajectory - filter effect - Fundamental characteristics Higher-dimensional - Information contents - Linear filters - Low-bandwidth
missing symbol - Physical channels - Physical modifications - Topological dimensions
Graph Theory, Set Theory
DOI: 10.1142/S0218127412501994
Database: Compendex
- 921.4 Combinatorial Mathematics, Includes
346.
Title: Composites of ultrahigh-molecular-weight polyethylene with graphene sheets and/or
MWCNTs with segregated network structure: Preparation and properties
Authors: Ren, Peng-Gang1 ; Di, Ying-Ying1 ; Zhang, Qian1 ; Li, Lan2 ; Pang, Huan3 ; Li,
Zhong-Ming3
Author affiliation: 1 Institute of Printing and Packaging Engineering, Xi'An University of
2 401 Research Institute, Fourth Academy of Space, Xi'an, Shaanxi 710025, China
3 State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and
Engineering, Sichuan University, Chengdu, Sichuan, 610065, China
Corresponding author: Ren, P.-G. ([email protected])
Source title: Macromolecular Materials and Engineering
Abbreviated source title: Macromol. Mater. Eng.
Volume: 297
Issue: 5
Pages: 437-443
Language: English
ISSN: 14387492
E-ISSN: 14392054
CODEN: MMENFA
Abstract: UHMWPE/MWCNT and UHMWPE/GNS composites with a segregated network are
prepared. TEM and SEM images indicate that the conducting fillers are distributed on the
UHMWPE surface and form a segregated conducting network. The percolation threshold of
UHMWPE/GNS composites is &asyum;0.25 wt% and that of UHMWPE/MWCNT composites is
0.20 wt%. The electrical conductivity of UHMWPE/GNS composites is almost four orders of
magnitude lower than that of the UHMWPE/MWCNT composites. For equivalent concentrations
of GNS and MWCNT, the composites with hybrid fillers exhibit a lower percolation threshold and
a higher conductivity than that with GNS or MWCNT alone. Due to the high strength of the fillers
and the segregated network structure, the mechanical properties of the composites first increase
and then decrease with increasing filler content. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA,
Weinheim.
Main heading: Fillers
Controlled terms: Conducting polymers - Electric conductivity - Graphene Mechanical properties - Multiwalled carbon nanotubes (MWCN) - Percolation (computer
storage) - Percolation (fluids) - Percolation (solid state) - Polyethylenes Thermoplastics
Uncontrolled terms: Conducting fillers - Electrical conductivity - Equivalent
concentrations - Filler contents - Four-order - Graphene sheets - High strength Percolation thresholds - Preparation and properties - Segregated network - SEM
image
Classification code: 933 Solid State Physics - 815.1.1 Organic Polymers - 815.1
Polymeric Materials - 804 Chemical Products Generally - 951 Materials Science - 803
Chemical Agents and Basic Industrial Chemicals - 722.1 Data Storage, Equipment and
Techniques - 701.1 Electricity: Basic Concepts and Phenomena - 631.1 Fluid Flow,
General - 761 Nanotechnology
DOI: 10.1002/mame.201100229
Database: Compendex
347.
Title: Study on flow characteristics near spur dikes under tidal bore
Authors: Rong, Gui-Wen1, 2 ; Wei, Wen-Li2 ; Liu, Yu-Ling2 ; Xu, Guang-Quan1
Author affiliation: 1 Anhui University of Science and Technology, Huainan 232001, China
Corresponding author: Rong, G.-W. ([email protected])
Volume: 43
Issue: 3
Pages: 296-301
Language: Chinese
ISSN: 05599350
CODEN: SLHPBI
Abstract: A mathematical model of tide flow motion nearby spur dikes is illustrated in this paper.
The Reynolds equations and the RNG k-Ε turbulent model are solved by the pressure implicit
splitting-operator (PISO) method. The governing equations are discretized by the finite volume
method, and the physical parameters are arranged on a staggered grid, and the free surface is
traced with volume of fluid method (VOF). The model is verified by the observation data, and the
comparison between the numerical results and experimental data is in good agreement. The
proposed model has been used to simulate the velocity vectors, free water surface, contours and
bore pressures of the flow in the vincinity of a spur dike. It is found that the flow near the spur
changes strongly, and bore pressures at different height on the groin rise rapidly at first, and then
reach their maximum almost at the same time.
Main heading: Levees
Controlled terms: Bridge piers - Computer simulation - Finite volume method Mathematical models - Reynolds equation
Uncontrolled terms: Different heights - Experimental data - Flow motion - Free
surfaces - Free water surfaces - Governing equations - Numerical results Observation data - On flow - Physical parameters
- Spur dike - Staggered grid Tidal bore - Turbulent models - Velocity vectors - Volume of fluid method
Classification code: 401.1 Bridges - 442.1 Flood Control - 723.5 Computer Applications
- 921 Mathematics
Database: Compendex
348.
Title: Dynamic stability of functionally graded materials skew plates subjected to uniformly
distributed tangential follower forces
Authors: Ruan, Miao1, 2 ; Wang, Zhong-Min1 ; Wang, Yan1
Author affiliation: 1 School of Sciences, Xi'An University of Technology, China
2 School of Sciences, Chang'An University, Xian, 710064, China
Corresponding author: Ruan, M. ([email protected])
Source title: JVC/Journal of Vibration and Control
Abbreviated source title: JVC/J Vib Control
Volume: 18
Issue: 7
Pages: 913-923
Language: English
ISSN: 10775463
E-ISSN: 17412986
CODEN: JVCOFX
Publisher: SAGE Publications Inc., 2455 Teller Road, Thousand Oaks, CA 91320, United States
Abstract: The dynamic stability of functionally graded material (FGM) skew thin plate subjected
to uniformly distributed tangential follower force is investigated. The material properties are
assumed to vary continuously through their thickness according to a power-law distribution of the
volume fractions of the plate constituents based on the Voigt model. In skew coordinate system,
the differential equations of motion of the FGM skew plate subjected to uniformly distributed
tangential follower force are derived by the Kirchhoff thin plate theory, and the different boundary
conditions are obtained of the plate for arbitrary curve edges. By eliminating the in-plane
displacement components on the neutral plane, the differential equations of motion can be
expressed in terms of deflection only. Then the equations are discretized by the differential
quadrature method, and the curves of real parts and imaginary parts of the first second-order
dimensionless complex frequencies vs. uniformly distributed tangential follower force are
obtained. The effects of the gradient index, skew angle and aspect ratio on the instability type and
the corresponding critical load of the non-conservation FGM skew plate are analyzed. © The
Author(s) 2011 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.
Main heading: Functionally graded materials
Controlled terms: Aspect ratio - Beams and girders - Boundary conditions Convergence of numerical methods - Differentiation (calculus) - Equations of motion Stability
Uncontrolled terms: Co-ordinate system - Complex frequency - Critical load Different boundary condition - Differential quadrature methods - Follower forces Gradient indexes - Imaginary parts - In-plane displacement - Kirchhoff thin plate
theory - Material property - Neutral plane - Power law distribution - Real part Second orders - Skew angles - Skew plates - Thin plate - uniformly distributed Voigt model
Classification code: 951 Materials Science - 943 Mechanical and Miscellaneous Measuring
Instruments - 931.1 Mechanics - 961 Systems Science - 931 Classical Physics;
Quantum Theory; Relativity - 801 Chemistry - 415 Metals, Plastics, Wood and Other
Structural Materials - 921 Mathematics
DOI: 10.1177/1077546311403787
Database: Compendex
349.
Title: An energy-efficient data aggregation routing algorithm in wireless sensor networks
Authors: Shan, Liqun1 ; Wang, Jinkuan1, 2 ; Wei, Wei3
Author affiliation: 1 School of Information Science Engineering, Northeastern University,
Shenyang, 110819, China
2 Engineering Optimization and Smart Antenna Institute, Northeastern University, Qinhuangdao
066004, China
Corresponding author: Wang, J.
Volume: 11
Issue: 10
Issue date: 2012
Pages: 1463-1469
Language: English
ISSN: 18125638
E-ISSN: 18125646
Abstract: In Wireless Sensor Networks (WSNs), each sensor obtains data and have to
communicate these data to a central node. Because sensors are battery powered they are highly
energy constrained. Data aggregation can be used to combine data of several sensors into a single
message, thus reducing the data traffic and the power consumption. This study has considered the
problem of maximizing the time at which the first node with data aggregation in WSNs drains out
of energy. It investigated optimal data aggregation routing for achieving the goal above. The
problem is formulated as a linear programming problem. By solving the network lifetime
optimization problem, the optimal solutions and the distributed implementation can be obtained
that are based on the primal-dual decomposition. Simulation results indicate that the algorithm is
superior to the existing methods. © 2012 Asian Network for Scientific Information.
Main heading: Problem solving
Controlled terms: Linear programming - Optimal systems - Optimization - Sensor
nodes - Sensors - Wireless sensor networks
Uncontrolled terms: Battery powered - Data aggregation - Data traffic - Distributed
implementation - Energy efficient - Energy-constrained - Linear programming problem
- Network lifetime - Optimal data - Optimal solutions
- Optimization problems Primal-dual decomposition - Relay selection - Transmission rates - Wireless sensor
network (WSNs)
Classification code: 722 Computer Systems and Equipment - 732 Control Devices - 801
Chemistry - 921 Mathematics - 921.5 Optimization Techniques
DOI: 10.3923/itj.2012.1463.1469
Database: Compendex
350.
Title: An energy-efficient aggregation scheduling algorithm with minimal latency in wireless
sensor networks
Authors: Shan, Liqun1, 3 ; Wang, Jinkuan1, 2 ; Wei, Wei4 ; Liu, Zhigang2
Author affiliation: 1 School of Information Science and Engineering, Northeastern University,
Shenyang, China
2 Engineering Optimization and Smart Antenna Institute, Northeastern University at
Qinhuangdao, Qinhuangdao, China
3 Northeast Petroleum University, Qinhuangdao, China
Corresponding author: Wang, J. ([email protected])
Volume: 6
Issue: 9
Pages: 195-203
Language: English
ISSN: 19759339
E-ISSN: 22339310
Abstract: In this paper, we address the problem of data aggregation scheduling problem to
minimize the latency in wireless sensor networks (WSNs). An efficient distributed synchronous
aggregation scheduling method is proposed to structure a collision-free schedule for data
aggregation in SNs. By using a connected dominating set (CDS) as an aggregation tree, we
implement the synchronous aggregation scheduling. We prove that the latency of the aggregation
schedule generated by our algorithm is at most 4 δ +15R -16 time-slots where R is the network
radius and δ is the maximum node degree in the communication graph of the original network.
Analysis and simulation results show the validity and superiority of the algorithm.
Main heading: Wireless sensor networks
Controlled terms: Algorithms - Scheduling
Uncontrolled terms: Analysis and simulation - Communication graphs - Connected
Dominating Set - Connected dominating sets - Data aggregation - Energy efficient Node degree - Scheduling methods - Scheduling problem - Time slots
- Wireless
sensor network (WSNs)
Classification code: 723 Computer Software, Data Handling and Applications - 732 Control
Devices - 912.2 Management - 921 Mathematics
Database: Compendex
351.
Title: An efficient and easy method for measuring warpage and thickness of large liquid crystal
display glass substrate part
Authors: Shao, Wei1 ; Hua, Denxin1 ; Zhou, Awei2 ; Yang, Jia1
University of Technology, Xi'an 710048, Shaanxi, China
2 School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
Corresponding author: Shao, W.
Source title: Journal of Nanoelectronics and Optoelectronics
Abbreviated source title: J. Nanoelectron. Optoelectron.
Volume: 7
Issue: 2
Issue date: 2012
Pages: 181-185
Language: English
ISSN: 1555130X
E-ISSN: 15551318
Publisher: American Scientific Publishers, 25650 North Lewis Way, Stevenson Ranch,
California, 91381-1439, United States
Abstract: This paper presents an measurement and analysis system of warpage and thickness of
LCD glass substrate parts with large and complicated curved surfaces used widely. For such LCD
glass substrate part which is characterized by a great volume, a big area, deforming easily, the
required accuracy and rigidity of the system are critical features. The purpose of the system is to
inspect LCD glass substrate part before the liquid crystal filled process. A new measurement
method called continuous automatic tracking controlling of probe scanning measurement system
base on Coordinate Measurement Machine (CMM) have been developed, the parts are measured
on-line after being machined. The parts are evaluated on-line via the techniques such as curves
matching and error separating. The measuring efficiency is advanced and the measurement
precision is enhanced. The successful application of it proves that the method is effective, credible
and accurate. Copyright © 2012 American Scientific Publishers All rights reserved.
Main heading: Coordinate measuring machines
Controlled terms: Error analysis - Liquid crystal displays - Measurements Servomechanisms - Substrates
Uncontrolled terms: Automatic tracking - Coordinate measurement machines - Curved
surfaces - Glass substrates - Measurement and analysis - Measurement precision New Measurement Method - Scanning measurement - Warpages
Classification code: 943.3 Special Purpose Instruments - 943 Mechanical and Miscellaneous
Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941
Acoustical and Optical Measuring Instruments - 944 Moisture, Pressure and Temperature, and
Radiation Measuring Instruments - 921.6 Numerical Methods - 741.3 Optical Devices and
Systems - 705 Electric Generators and Motors - 461 Bioengineering and Biology - 801
Chemistry
DOI: 10.1166/jno.2012.1242
Database: Compendex
352.
Title: A novel measurement and analysis technique for inspection of sheet metal parts based on
statistics
Authors: Shao, Wei1 ; Zhou, Awei1 ; Hua, Dengxin1
Corresponding author: Shao, W. ([email protected])
Source title: Proceedings of 2012 IEEE International Conference on Information Science and
Technology, ICIST 2012
Abbreviated source title: Proc. IEEE Int. Conf. Inf. Sci. Technol., ICIST
Monograph title: Proceedings of 2012 IEEE International Conference on Information Science
and Technology, ICIST 2012
Issue date: 2012
Pages: 77-82
Language: English
ISBN-13: 9781457703454
Conference name: 2012 IEEE International Conference on Information Science and Technology,
ICIST 2012
United States
Abstract: This paper presents the practical implementation of a novel shape measurement and
analysis scheme for automatic quality inspection of sheet metal parts with large and complicated
curved surfaces used widely for manufacturing applications base on statistics. In the proposed
technique, the online measurement system (OLMS) developed with improved accuracy, flexibility
and advanced measuring efficiency advantages, and the shape error analysis are used to assure
quality and to reduce manufacturing costs and rework. The proposed shape error analysis
technique first uses a statistical method to determine the number of test-points with suitable
sample size. Then, the technique uses centroid-based matching and flexible transversal matching
to perform the geometrical adjustment, following a report on detected shape errors. Experimental
results showed satisfactory performances of the proposed shape measurement and analysis
technique in terms of speed, accuracy and reliability in manufacturing processes. © 2012 IEEE.
Main heading: Reliability analysis
Controlled terms: Error analysis - Information science - Technology
Uncontrolled terms: Automatic quality inspection - Curved surfaces - Manufacturing
applications - Manufacturing cost - Manufacturing process - Measurement and analysis
- On line measurement system - Practical implementation - Sample sizes - Shape
errors - Shape measurements - Sheet metal parts - Test-points
Classification code: 901 Engineering Profession - 903 Information Science - 913
Production Planning and Control; Manufacturing - 921.6 Numerical Methods
DOI: 10.1109/ICIST.2012.6221611
Database: Compendex
353.
Title: A measurement and analysis technique of curves of metal parts
Authors: Shao, Wei1 ; Hua, Dengxin1
Author affiliation: 1 Xi'An University of Technology, Xi'an, Shaanxi, China
Volume: 424-425
Monograph title: Advanced Research on Engineering Materials, Energy, Management and
Control
Issue date: 2012
Pages: 665-668
Language: English
ISSN: 10226680
ISBN-13: 9783037853443
Conference name: 2012 2nd International Conference on Engineering Materials, Energy,
Management and Control, MEMC2012
Sponsor: International Science and Education Researcher Association (ISER); Beijing Gireida
Education Research Center; VIP-Information Conference Center
Abstract: Metal parts with large and complicated curved surfaces used widely have some
characteristics such as a great volume, a big area, distorting easily. It is very difficult to measure
and evaluate accurately the parts. Taking measurement of the parts as a purpose, a new
measurement method called On-Line Shape Measurement System (OSMS) is put forward.Error
analysis of curves is a requirement to assure quality and to reduce manufacturing costs and rework.
This paper proposes a new approach and algorithms for the error analysis of curves.the system
applies a robust mathematic model, Implicit polynomials (IP), to construct the model of the
test-points. Once the CAD model is adjusted, it is compared with input to reveal the errors
between their shapes. To accomplish this task a new shape matching algorithm is developed.
Experimental results on error analysis of a variety of the machined metal skin of aircraft are
reported to show the validity of the proposed methodology. © (2012) Trans Tech Publications,
Switzerland.
Controlled terms: Algorithms - Computer aided design - Error analysis - Inspection
- Metal analysis - Metals
Uncontrolled terms: CAD models - Curved surfaces - Curves - Implicit polynomials
- Manufacturing cost - Mathematic model - Measurement and analysis - Metal parts
- Metal skin - New Measurement Method
- Shape errors - Shape matching Shape measurement systems - Test-points
Classification code: 921.6 Numerical Methods - 921 Mathematics - 913.3.1 Inspection
- 913.3 Quality Assurance and Control - 723.5 Computer Applications - 723 Computer
Software, Data Handling and Applications - 531 Metallurgy and Metallography
Database: Compendex
354.
Title: Diameter controlling method of large size sapphire single crystal grown by kyropoulos
method
Authors: Shao, Wei1 ; Yang, Jun-Liang1
Volume: 41
Issue: 1
Pages: 253-257
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: To obtain high quality crystals, a precision diameter-constant controlling method was
required in the growth process of large size sapphire single crystal by Kyropoulos method. Based
on the weight of the crystal to control the thermal field, and to achieve diameter-constant growth
of crystals. a generalized minimum variance principle base on online adjusting polynomial
weights (RAPW_GMV) control method is introduced, and establishing model of system. Its main
idea is based on the online estimation of the parameters of controlled object and RAPW_GMV
output, online adjusting polynomial weights, fulfill the controlling of thermal field and
diameter-constant growth of crystals. The emulator and experimental results confirm that the
controlling method achieve precision diameter-constant controlling of Sapphire Single Crystal and
effectively improve the quality of sapphire single crystal.
Controlled terms: Crystals - Physical properties
Uncontrolled terms: Control methods - Controlled objects - Controlling methods Generalized minimum variance - Growth process - High quality crystals - Kyropoulos
method - Large sizes - Model of systems - On-line estimation
- Polynomial weight
- Sapphire single crystal - Thermal field
Classification code: 913.3 Quality Assurance and Control - 931.2 Physical Properties of
Gases, Liquids and Solids - 933.1 Crystalline Solids
Database: Compendex
355.
Title: Simulated effects and adaptive evaluation of different canopies rainfall interception
models in Loess Plateau
Authors: She, Dongli1, 2 ; Liu, Yingying2 ; Shao, Ming'an3 ; Chen, Youlin2 ; Peng, Shizhang1 ;
Zhou, Beibei4
Author affiliation: 1 State Key Laboratory of Hydrology-Water Resources and Hydraulic
Engineering, Hohai University, Nanjing 210098, China
2 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing
210098, China
3 Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic
Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100100, China
Xi'an 710048, China
Corresponding author: Shao, M.
Engineering
Volume: 28
Issue: 16
Pages: 115-120
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: To understand the hydro-ecological effects of canopy rainfall interception, we
measured and simulated the dynamics of canopy interception for Korshinsk peashrub and Apricot
in the Loess Plateau. Measurement results showed that the canopy interception were significantly
different between the two kinds vegetation. The interception increased with the increase of rainfall
for Korshinsk peashrub tree stand, and the steady interception rate was about 15%. Comparatively,
the interception rate was relative low for Apricot tree stand for its 'funnel-shaped' canopy,
especially, when the rainfall was lower than 5 mm. There are no significant relationship between
the interception rate of Apricot canopy and rainfall, and the steady interception rate was about
10%. About the simulation of Interception laws of Caragana Korshinskii, the determination
coefficient of rainfall and canopy density was 0.74 in Cui's interception model, in which including
variables of rainfall and canopy density, and the determination coefficient of simulation was 0.68
in the Wang's interception model, in which variable is rainfall. However, there was no better
simulation result of the two models for the 'funnel-shaped' canopy of apricot tree stand.
Controlled terms: Forestry - Models - Rain - Vegetation
Uncontrolled terms: Adaptive evaluation - Apricot - Canopy density - Canopy
interception - Caragana Korshinskii - Determination coefficients - Korshinsk peashrub
- Loess Plateau - Measurement results - Rainfall interception
- Simulation - Tree
stands
Classification code: 443.3 Precipitation - 723.5 Computer Applications - 821
Agricultural Equipment and Methods; Vegetation and Pest Control - 821.0 Woodlands and
Forestry - 902.1 Engineering Graphics
DOI: 10.3969/j.issn.1002-6819.2012.16.018
Database: Compendex
356.
Title: Hydrological combined forecasting method based-on vector angular cosine
Authors: Shen, Hai1, 2 ; Xie, Jian-Cang1 ; Li, Jian-Xun1 ; Li, Wei-Qian1
2 Department of General Studies, Xi'an International Studies University, Xi'an 710128, China
Corresponding author: Shen, H. ([email protected])
Volume: 32
Issue: 7
Pages: 1591-1597
Language: Chinese
ISSN: 10006788
CODEN: XGLSE2
Abstract: According to the low accuracy problem of single hydrological forecasting model in
hydrological forecasting, a hydrological combined forecasting method was put forward based on
vector angular cosine. Applying the theory of combination forecasting, this paper was to establish
measurement vector, prediction vector and weight vector, to construct vector angular cosine model.
This paper discusses fitting goodness and dynamic approximation as two variable weights
calculation methods for different conditions of historical hydrological data; Completes calibration
and initialization of parameters, and analyzes the influencing factors of forecasting accuracy by
parameters. The results show that this method can effectively overcome the lack of individual
hydrological forecasting, and achieve a combination model from individual hydrological
forecasting with more than 20% pass rate.
Main heading: Forecasting
Controlled terms: Vectors
Uncontrolled terms: Accuracy problems - Combination forecasting - Combination
models - Combined forecasting - Forecasting accuracy - Hydrological data Hydrological forecasting - Influencing factor - Pass rate - Prediction vectors Variable weight - Weight vector
Classification code: 921 Mathematics - 921.1 Algebra
Database: Compendex
357.
Title: Preparation and characterization of diatomite-based porous ceramics
Authors: Shen, Wenning1 ; Feng, Lajun1 ; Lei, Ali1 ; Guo, Meijuan1
Technology, No.5 South Jinhua Road, Xi'an 710048, China
Corresponding author: Shen, W. ([email protected])
Volume: 217-219
Monograph title: Advanced Materials and Process Technology
Issue date: 2012
Pages: 879-885
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037855027
Abstract: Diatomite-based porous ceramics were prepared by hand compression molding under
low temperature sintering, using diatomite as raw material, sodium carbonate and polyvinyl
alcohol (PVA) as additives. The effects of sintering temperature, addition amount of sodium
carbonate and PVA on the properties of porous ceramics were discussed. The prepared porous
ceramics were characterized by mercury porosimeter, XRD, SEM and FTIR. And the adsorption
of methyl orange by porous ceramics was investigated. The results show that the performances of
porous ceramics, such as porosity and crushing strength, change with the addition amount of
sodium carbonate and PVA, also the sintering temperature. The optimum formula for preparing
porous ceramics used as carrier and filter simultaneously consists of 100 portions of calcined
diatomite, 10 portions of sodium carbonate, 150 portions of water, PVA and polyacrylamide (PAM)
solution[m(H2O):m(PVA):m(PAM)=1000:4:4]. When sintered at 900 °C, the porosity, crushing
strength, average pore diameter and specific surface area of prepared porous ceramics are 71.74%,
4.535MPa, 10.023μm and 230m2/g, respectively. The prepared porous ceramics are composed of
tetragonal cristobalite. And the decoloration conversion for methyl orange of prepared porous
ceramics can reach 40.43% in 90 min. © (2012) Trans Tech Publications, Switzerland.
Main heading: Ceramic materials
Controlled terms: Adsorption - Azo dyes - Calcination - Carbonation Compression molding - Compressive strength - Design - Dyes - Mercury (metal)
- Porosity - Silicate minerals - Sintering - Sodium - Temperature
Uncontrolled terms: Calcined diatomite - Cristobalites - Decoloration - Diatomite Diatomite-based porous ceramics - FTIR - Low-temperature sintering - Mercury
porosimeters - Methyl Orange - Polyacrylamides
- Polyvinyl alcohol (pva) - Pore
diameters - Porous ceramics - Sintering temperatures - Sodium carbonate - XRD
Classification code: 816.1 Processing of Plastics and Other Polymers - 812.1 Ceramics 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 802.2
Chemical Reactions - 931.2 Physical Properties of Gases, Liquids and Solids - 641.1
Thermodynamics - 549.1 Alkali Metals - 482.2 Minerals - 421 Strength of Building
Materials; Mechanical Properties - 408 Structural Design - 549.3 Nonferrous Metals and
Alloys excluding Alkali and Alkaline Earth Metals
Database: Compendex
358.
Title: Dimensional splitting method for nonlinearly elastic shell
Authors: Shen, Xiaoqin1 ; Li, Kaitai2
Author affiliation: 1 School of Sciences, Xi'an University of Technology, Xi'an, Shaanxi
710054, China
2 School of Sciences, Xi'an Jiaotong University, Xi'an, Shannxi 710049, China
Corresponding author: Shen, X. ([email protected])
Source title: Proceedings - 2012 International Conference on Computer Science and Electronics
Engineering, ICCSEE 2012
Abbreviated source title: Proc. - Int. Conf. Comput. Sci. Electron. Eng., ICCSEE
Volume: 3
Monograph title: Proceedings - 2012 International Conference on Computer Science and
Electronics Engineering, ICCSEE 2012
Issue date: 2012
Pages: 452-455
Language: English
ISBN-13: 9780769546476
Conference name: 2012 International Conference on Computer Science and Electronics
Engineering, ICCSEE 2012
Conference location: Hangzhou, Zhejiang, China
Sponsor: Xi'an Technological University; Shaanxi New Network and Monitoring Control
Engineering Laboratory
United States
Abstract: In this paper, we successfully split the 3-D problem into the 2-D problem for
nonlinearly elastic shell. We put forward a new 2-D model for the nonlinearly elastic by using
dimensional splitting method, which is more exact than classic models. At the same time, we
provide the solution to 2-D nonlinearly shell model. © 2012 IEEE.
Main heading: Computer science
Controlled terms: Asymptotic analysis - Electronics engineering
Uncontrolled terms: 2-D model - 3-D problems - Classic models - dimension
splitting - Elastic shells - Shell models - Splitting method
Classification code: 723 Computer Software, Data Handling and Applications - 722
Computer Systems and Equipment - 721 Computer Circuits and Logic Elements - 718
Telephone Systems and Related Technologies; Line Communications - 921 Mathematics 717 Optical Communication - 715 Electronic Equipment, General Purpose and Industrial 714 Electronic Components and Tubes - 713 Electronic Circuits - 716 Telecommunication;
Radar, Radio and Television
DOI: 10.1109/ICCSEE.2012.215
Database: Compendex
359.
Title: Effect of vacuum annealing temperature on the microstructure of Cr-doped graphite like
carbon coatings
Authors: Shi, Hui-Ying1 ; Li, Hong-Tao1 ; Jiang, Bai-Ling1
Corresponding author: Shi, H.-Y. ([email protected])
Volume: 41
Issue: 4
Pages: 1143-1147
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: The Cr-doped graphite like carbon coatings were deposited onto single crystal silicon
by magnetron sputtering ion plating. The phase and microstructure of Cr-doped graphite like
carbon coatings before and after vacuum annealing were analyzed in detail using XRD and TEM.
The results show that: Cr3C2, Cr23C6 and even the microcrystalline graphite crystals can appear
in the C/Cr working layer of Cr-doped graphite like carbon coatings successively as the vacuum
annealing temperature above 500°C. During the vacuum annealing process of Cr-doped graphite
like carbon coatings, Cr3C2 was precipitated easily in amorphous graphite layer with Cr atoms
doped compared to Cr23C6, and Cr3C2 carbides tend to precipitate around the high concentration
zone of Cr atoms in the C/Cr working layer. The dependence of Cr3C2, Cr23C6 etc. carbides
precipitation on Cr atoms concentration was gradually weakened.
Controlled terms: Amorphous carbon - Annealing - Atoms - Carbides - Graphite
- Ion implantation - Microstructure - Silicon wafers - Vacuum
Uncontrolled terms: Cr atoms - Cr-doped - Graphite layers - Graphite like carbon
coatings - High concentration - Ion plating - Microcrystalline graphite - Single
crystal silicon - Vacuum annealing temperature - Vacuum-annealing
- XRD
Classification code: 933.2 Amorphous Solids - 933 Solid State Physics - 932.1 High
Energy Physics - 931.3 Atomic and Molecular Physics - 951 Materials Science - 804.2
Inorganic Compounds - 712.1.1 Single Element Semiconducting Materials - 633 Vacuum
Technology - 537.1 Heat Treatment Processes - 804 Chemical Products Generally
Database: Compendex
360.
Title: Effect of sublayer on the structures and tribological properties of GLC coating on Al-based
alloy
Authors: Shi, Huiying1 ; Long, Yanni1 ; Jiang, Bailing1 ; Chen, Dichun1
Corresponding author: Shi, H. ([email protected])
Source title: Jinshu Xuebao/Acta Metallurgica Sinica
Abbreviated source title: Jinshu Xuebao
Volume: 48
Issue: 8
Pages: 983-988
Language: Chinese
ISSN: 04121961
CODEN: CHSPA4
Publisher: Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110015, China
Abstract: Graphite-like carbon (GLC) film is a kind of antifriction coating. Cr/Cr-C/GLC and
Al/Al-Cr-C/GLC composite coatings were prepared by using an unbalanced magnetron sputtering
system on Al-based alloy, where Al and Cr layer are the sublayers, Cr-C and Al-Cr-C are the
transition layers. As a comparation, the GLC coating without sublayer was also deposited on the
substrate. The microstructure, binding force and tribological properties of as-deposited coatings
were studied. The results show that the Cr sublayer shows a columnar growth structure, while the
columnar grain is not found in the Cr-C transition layer which has a gradient composition
distribution. There is a good combining interface between Al sublayer and Al-based alloy substrate.
Al-Cr-C transition layer has a gradient composition distribution also. GLC layers based on
different sublayers and transition layers have amorphous structures. Compared with GLC coating
without sublayer, the binding forces of Cr/Cr-C/GLC and Al/Al-Cr-C/GLC composite coatings are
obviously higher, and the Al/Al- Cr-C/GLC composite coating has the maximum critical load.
Under different loading conditions, the friction coefficients of both Cr/Cr-C/GLC and
Al/Al-Cr-C/GLC composite coatings are low and similar to each other. © Copy Right.
Controlled terms: Alloys - Aluminum - Aluminum coatings - Cerium alloys Composite coatings - Deposits - Grain growth - Interfaces (materials) - Loading Microstructure - Tribology
Uncontrolled terms: Al-based alloys - Amorphous structures - Anti-friction coatings Binding forces - Columnar grain - Columnar growth - Composition distributions Critical load - Friction coefficients - GLC film - Loading condition - Sub-layers
- Transition layers - Tribological properties - Unbalanced magnetron sputtering Unbalanced magnetron sputtering systems
Classification code: 951 Materials Science - 933.1.2 Crystal Growth - 933 Solid State
Physics - 931 Classical Physics; Quantum Theory; Relativity - 813.2 Coating Materials 672 Naval Vessels - 617 Turbines and Steam Turbines - 612 Engines - 547.2 Rare Earth
Metals - 541.1 Aluminum - 532 Metallurgical Furnaces - 531.2 Metallography 531.1 Metallurgy
DOI: 10.3724/SP.J.1037.2011.00748
Database: Compendex
361.
Title: Normal contact stiffness on unit area of a mechanical joint surface considering perfectly
elastic elliptical asperities
Authors: Shi, J.P.1 ; Ma, K.1 ; Liu, Z.Q.1
Author affiliation: 1 Department of Engineering Mechanics, Xi'An University of Technology,
Corresponding author: Shi, J.P.
Source title: Journal of Tribology
Abbreviated source title: J. Tribol.
Volume: 134
Issue: 3
Issue date: 2012
Language: English
ISSN: 07424787
E-ISSN: 15288897
Abstract: Based on the Greenwood and Williamson theory, an assumption about the contact-area
size of asperities on rough surfaces is proposed under the premise that the height of these
asperities on rough surfaces is a Gaussian distribution. A formula has been derived to measure the
number of asperities on 2D surfaces. The contact stiffness on a unit length of a 1D outline and that
on a unit area of 2D surfaces are presented based on a formula for determining the number of
asperities. The relationship between macro parameters, such as contact stiffness and micro
parameters on the joint surface, is established. © 2012 American Society of Mechanical
Engineers.
Main heading: Two dimensional
Controlled terms: Surface measurement
Uncontrolled terms: Contact stiffness - elliptical asperities - Joint surfaces - normal
- unit area
Classification code: 902.1 Engineering Graphics - 943.2 Mechanical Variables
Measurements
DOI: 10.1115/1.4006924
Database: Compendex
362.
Title: Analysis of the residual stress in multi-layer materials
Authors: Shi, Kun1 ; Yuan, Yuan1 ; Wei, Fengtao1
Author affiliation: 1 Xi'an University of Technology, 5 South Jinhua Rd., China
Corresponding author: Shi, K. ([email protected])
Volume: 160
Monograph title: Advances in Intelligent Structure and Vibration Control
Issue date: 2012
Pages: 377-380
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853894
Conference name: 2nd International Conference on Intelligent Structure and Vibration Control
2012, ISVC 2012
Sponsor: Shanghai Jiao Tong University; Nanyang Normal University; Hebei Polytechnic
University; Henan Institute of Science and Technology; Chongqing University of Arts and
Sciences; Hunan Institute of Engineering
Abstract: The residual stresses due to the mismatch between metallic bond coat and ceramic top
coat lead to a collapse of all thermal barrier system. For measuring residual strain in elastic
multilayer materials, the incremental hole-drilling strain-gauge method was studied. The main
stresses, which is interrelated with the residual strain, is resolved on planes that are normal to a
deep hole. In order to link the surface strain to the residual stress, calibration coefficients were
obtained by the finite element method. The result shows that the coefficients depend on the
substrate and the type of coating, the strain gauge used and the size of the step drilled. © (2012)
Trans Tech Publications.
Controlled terms: Finite element method - Intelligent structures - Strain gages Thermal barrier coatings - Vibration control
Uncontrolled terms: Calibration coefficients - Ceramic top coat - Deep holes - Elastic
multilayers - Hole-drilling - Main stress - Metallic bonds - Residual strains Surface strains - Thermal barrier systems
Classification code: 409 Civil Engineering, General - 421 Strength of Building Materials;
Mechanical Properties - 731.3 Specific Variables Control - 813.2 Coating Materials 921.6 Numerical Methods - 943.1 Mechanical Instruments
Database: Compendex
363.
Title: Study on structure including interface based on interface stress element method
Authors: Shi, Kun1 ; Yuan, Yuan1 ; Song, Li1 ; Wei, Fengtao1
Author affiliation: 1 School of Mechanical and Precise Instrument, Xi'an University of
Technology, 5 South Jinhua Rd., Xi'an 710048, China
Volume: 160
Monograph title: Advances in Intelligent Structure and Vibration Control
Issue date: 2012
Pages: 120-124
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853894
Conference name: 2nd International Conference on Intelligent Structure and Vibration Control
2012, ISVC 2012
Sponsor: Shanghai Jiao Tong University; Nanyang Normal University; Hebei Polytechnic
University; Henan Institute of Science and Technology; Chongqing University of Arts and
Sciences; Hunan Institute of Engineering
Abstract: The characteristics of interface affect the behaviors of a whole structure considerably.
The interface along with its neighbouring region is defined as the interface region and the
equivalent parameters in the interface region used in the analysis are obtained by both theoretical
and experimental methods. A structure including interface was taken as an example, whose
calculated model was made by the interface stress element method. The comparison between the
results of calculation and experiment is presented to illustrate the feasibility and effectiveness of
the proposed approach. © (2012) Trans Tech Publications.
Main heading: Stresses
Controlled terms: Intelligent structures - Interfaces (materials) - Structure (composition)
- Vibration control
Uncontrolled terms: Discontinuous media mechanics - Equivalent parameters Experimental methods - Interface regions - Interface stress element - Interface stress
element method
Classification code: 409 Civil Engineering, General - 421 Strength of Building Materials;
Mechanical Properties - 731.3 Specific Variables Control - 951 Materials Science
Database: Compendex
364.
Title: Study of structure with joints based on interface stress element method
Authors: Shi, Kun1 ; Song, Li1 ; Shi, Junping1 ; Yuan, Yuan1 ; Wei, Fengtao1
Source title: International Journal of Advancements in Computing Technology
Abbreviated source title: Intl. J. Adv. Comput. Technolog.
Volume: 4
Issue: 16
Pages: 404-411
Language: English
ISSN: 20058039
E-ISSN: 22339337
Abstract: The characteristics of joint affect the behaviors of a whole structure considerably. An
interface stress element method (ISEM) is proposed to analyze the structure with joints. The
method uses a piecewise rigid-body displacement field; it can be adopted to analyze the
discontinuous structure without setting any interlayer elements. In the interface stress element
(ISE) model of the structure with joints, the joint along with its neighboring region is defined as
the interface region. The equivalent parameters in the interface region used in the analysis are
obtained by both theoretical and experimental methods. A bolted mechanical structure was taken
as an example, whose calculated model was made by the ISEM. The comparison between the
results of calculation and experiment is presented to illustrate the feasibility and effectiveness of
the proposed approach.
Main heading: Rigid structures
Controlled terms: Interfaces (materials) - Stresses - Structure (composition)
Uncontrolled terms: Discontinuous media mechanics - Displacement field - Equivalent
parameters - Experimental methods - Interface regions - Interface stress - Interface
stress element method - Mechanical structures - Piece-wise - Rigid body
Classification code: 408 Structural Design - 421 Strength of Building Materials; Mechanical
Properties - 951 Materials Science
DOI: 10.4156/ijact.vol4.issue16.47
Database: Compendex
365.
Title: Investigation of ultra-wideband electromagnetic radiation based on SI-GaAs
photoconductive switches
Authors: Shi, Wei1, 2 ; Ji, Weili1 ; Jia, Wanli1
Author affiliation: 1 Department of Applied Physics, Xi'An University of Technology, Xi'an,
University, Xi'an, Shaanxi 710049, China
Source title: Microwave and Optical Technology Letters
Abbreviated source title: Microwave Opt Technol Lett
Volume: 54
Issue: 4
Pages: 900-904
Language: English
ISSN: 08952477
E-ISSN: 10982760
CODEN: MOTLEO
Publisher: John Wiley and Sons Inc., P.O.Box 18667, Newark, NJ 07191-8667, United States
Abstract: A new ultra-wideband electromagnetic pulse generating based on the photoconductive
semiconductor switches (PCSS) is presented. Semi-insulated Gallium Arsenide is used to develop
the PCSS for an ultrashort electromagnetic pulse source. The construction and the work principle
of PCSS are illustrated in this paper. The experimental results of ultra-wide-band radiation with
DC biased GaAs photoconductive semiconductor switch triggered by nanosecond (ns), picosecond
(ps), femtosecond (fs) laser pulse, are reported respectively. The radiations of the PCSS triggered
by the ns laser pulse, the ps laser pulse and fs laser pulse series illustrate that the electromagnetic
pulses would have high repetition of more than 80 MHz and frequency bandwidth of DC-7.6 GHz.
The radiation characteristic of the ultrafast electrical pulse generated by PCSS is analyzed. © 2012
Wiley Periodicals, Inc.
Main heading: Gallium arsenide
Controlled terms: Electromagnetic pulse - Laser pulses - Photoconductive switches Ultra-wideband (UWB)
Uncontrolled terms: DC biased - Femtosecond (fs) laser - Frequency band width - Fs
laser pulse - GaAs - High repetition - Photoconductive semiconductor switches Picoseconds - Radiation characteristics - SI-GaAs
- Ultra-fast electrical pulse Ultra-wideband electromagnetic pulse - ultra-wideband radiation - Ultrashort
electromagnetic pulse - Work principle
Classification code: 701 Electricity and Magnetism - 714.2 Semiconductor Devices and
Integrated Circuits - 716.3 Radio Systems and Equipment - 744.1 Lasers, General - 804
Chemical Products Generally
DOI: 10.1002/mop.26683
Database: Compendex
366.
Title: Fiber-optically triggered four parallel GAas photoconductive semiconductor switches
Authors: Shi, Wei1, 2 ; Xue, Hong1 ; Li, Ning1 ; Chen, Suguo1 ; Dai, Ruijuan1
Author affiliation: 1 Applied Physics Department, Xi'An University of Technology, Xi'an
710048, China
University, Xi'an 710049, China
Source title: Plasma Science and Technology
Abbreviated source title: Plasma Sci. Technol.
Volume: 13
Issue: 6
Pages: 747-750
Language: English
ISSN: 10090630
United Kingdom
Abstract: Four parallel GaAs photoconductive semiconductor switches (PCSSs) were triggered
simultaneously by four 1064 nm laser beams. The transient characteristics of four linear electrical
pulses were investigated. When the energy of four laser beams were 16.4 mJ, 15.6 mJ, 15.3 mJ,
and 13.7 mJ, respectively, four stable electrical pulses of about 25 ns width and 10 ns rise time
were obtained at the same bias voltage of 8 kV. The maximum switching voltage amplitude was
3.8 kV. With the triggering pulse energy and bias voltage kept constant, the three GaAs PCSSs
were triggered at 10 Hz laser pulse. The method of synchronization calculation was given, and the
synchronization of four parallel GaAs PCSSs was calculated to be 79 ps. The influence of bias
voltage and laser energy on the voltage amplitude of electrical pulse was analyzed. Furthermore,
relationship between the synchronization and the jitter time was also discussed.
Main heading: Bias voltage
Controlled terms: Fibers - Gallium arsenide - Laser beams - Photoconducting devices
- Photoconductivity - Power quality - Semiconducting gallium - Semiconductor
lasers - Semiconductor switches - Synchronization
Uncontrolled terms: 1064 nm lasers - Electrical pulse - GaAs - Jitter-time - Laser
energies - Linear modes - PCSS - Photoconductive semiconductor switches - Pulse
energies - Risetimes
- Switching voltages - Transient characteristic - Voltage
amplitude
Classification code: 817 Plastics and Other Polymers: Products and Applications - 812
Ceramics, Refractories and Glass - 804 Chemical Products Generally - 744.8 Laser Beam
Interactions - 961 Systems Science - 741.1 Light/Optics - 713 Electronic Circuits 712.1.1 Single Element Semiconducting Materials - 706.1.2 Electric Power Distribution 714.2 Semiconductor Devices and Integrated Circuits
DOI: 10.1088/1009-0630/13/6/21
Database: Compendex
367.
Title: Mechanism analysis of the flashover quenching the photoconductive semiconductor
switch in SF6
Authors: Shi, Wei1 ; Jiang, Zenggong2
Author affiliation: 1 Applied Physics Department, Xi'An University of Technology, State Key
Laboratory of Electrical Insulation for Power Equipment, Xi'an 710048, China
2 Applied Physics Department, Xi'An University of Technology, Xi'an 710048, China
Source title: IEEE Transactions on Plasma Science
Abbreviated source title: IEEE Trans Plasma Sci
Volume: 40
Issue: 9
Issue date: 2012
Pages: 2221-2224
Language: English
ISSN: 00933813
CODEN: ITPSBD
Abstract: The authors designed the voltage withstand test of the photoconductive semiconductor
switch (PCSS) in which the electrode gap was 18 mm in the condition of the pulsed laser triggered.
During the experiments, the flashover quenching the photon-activated charge domain (PACD) has
been observed, namely, when the flashover occurred, the pulse current amplitude of
semi-insulating GaAs PCSS was lower than the normal value without flashover and the rise time
of the output current increased. The experiment indicates that the current output characteristics of
PCSS contain the information of the flashover, when the flashover occurs with the discharge of the
PCSS. The analysis denotes that the secondary electron emission in the flashover quenches the
PACD and ultimately quenches the PCSS. The external electric field of the PACD modulated by
the secondary electron emission determines if the PACD is to be quenched or not. The Gunn
domain is imported to describe the critical state where the flashover quenches the PACD and the
threshold condition has been given. © 2012 IEEE.
Main heading: Flashover
Controlled terms: Critical current density (superconductivity) - Experiments - Gallium
arsenide - Photoconductive switches - Photons - Quenching - Secondary emission
- Semiconducting gallium - Sulfur hexafluoride
Uncontrolled terms: Critical state - Current output - Electrode gap - External electric
field - Gunn domains - Laser triggered - Mechanism analysis - Output current Photoconductive semiconductor switches - photon-activated charge domain (PACD) Pulse currents - Risetimes - Secondary electron emissions - Semi-insulating GaAs Threshold condition
Classification code: 901.3 Engineering Research - 804.2 Inorganic Compounds - 804
Chemical Products Generally - 741.1 Light/Optics - 714.2 Semiconductor Devices and
Integrated Circuits - 714.1 Electron Tubes - 712.1.1 Single Element Semiconducting
Materials - 701.1 Electricity: Basic Concepts and Phenomena - 537.1 Heat Treatment
Processes
DOI: 10.1109/TPS.2012.2207408
Database: Compendex
368.
Title: Infrared inhibition of flashover in photoconductive semiconductor switch in high electric
field
Authors: Shi, Wei1 ; Xu, Ming1
Author affiliation: 1 Research Center for Ultrafast Photoelectric Technology, Xi'An University
of Technology, Xi'an 710048, China
Source title: IEEE Photonics Technology Letters
Abbreviated source title: IEEE Photonics Technol Lett
Volume: 24
Issue: 20
Issue date: 2012
Pages: 1838-1840
Language: English
ISSN: 10411135
CODEN: IPTLEL
Abstract: Semi-insulating GaAs photoconductive switches hold great potential for use in
high-voltage switching applications. However, the utility is restricted by surface flashover, which
resulted in breakdown in previous experiments. In this letter, we designed a configuration based
on infrared inhibition to suppress the surface flashover in high-voltage operation. Bias voltage can
be up to 32 kV with a 0.9-kA switching current. Results show that transport of photo-activated
charge domain is interrupted by the formation of new domains due to second laser trigger. ©
1989-2012 IEEE.
Main heading: Electric insulators
Controlled terms: Electric fields - Gallium arsenide - Photoconductive switches
Uncontrolled terms: High electric fields - High-voltage operation - High-voltage
switching - Photo-activated - Photoconductive semiconductor switches Semi-insulating GaAs - Semi-insulating gallium arsenide - Surface flashover Switching currents
Classification code: 701.1 Electricity: Basic Concepts and Phenomena - 704 Electric
Components and Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 804
Chemical Products Generally
DOI: 10.1109/LPT.2012.2215956
Database: Compendex
369.
Title: Characteristics of water and salt transport in layered soils
Authors: Shi, Wenjuan1 ; Wang, Juan1 ; Song, Xiaoyu1
Author affiliation: 1 Key Laboratory of Northwestern Water Resources and Ecological
Environment, Xi'an University of Technology, Xi'an 710048, China
Volume: 518-523
Issue date: 2012
Pages: 5008-5011
Language: English
ISSN: 10226680
ISBN-13: 9783037854167
2012
Abstract: Characteristics of water and salt transport in layered soils with the loess soil layer
overlapping different particle size sandy soil layer, was investigated in two dimensions soil
chamber. The results show that, finger flow occurs when the wetting front enters into the low layer
sandy soil, and the accumulative infiltration is greater for coarser particle size sandy soil than that
for finer particle size one. The behavior of water movement and salt transport are disagree since
salt content in soil profile has a significant difference for two treatments and water content is
almost same. The further analysis explains this phenomenon is mainly caused by adsorption of the
finer sandy soil to Na+. In additional, Cl- is easier to movement in pathway of the finger flow than
that of Na+ whether the soil texture was same or not. © (2012) Trans Tech Publications,
Switzerland.
Main heading: Soils
Controlled terms: Adsorption - Particle size - Sand
Uncontrolled terms: Finer particles - Finger flow - Layered soils - Loess soils Salt content - Salt transport - Sandy soils - Soil chamber - Soil profiles - Soil
textures - Two-dimension - Water movements - Wetting fronts
Classification code: 483.1 Soils and Soil Mechanics - 802.3 Chemical Operations - 943.2
Mechanical Variables Measurements
Database: Compendex
370.
Title: Sparse field snake model: A novel active contour model used for lung segmentation on
chest radiographs
Authors: Shi, Zhenghao1 ; Li, Li1 ; Zhao, Minghua1 ; He, Lifeng4 ; Wang, Yinghui1 ; Zhang,
Ming2 ; Suzuki, Kenji3
Technology, 5 South Jinhua Road, Xi'an 710048, China
2 First Affiliated Hospital of School of Medicine, Xi'an Jiaotong University, 76 West Yanta Road,
Xi'an 710061, China
3 Department of Radiology, University of Chicago, 5841 South Maryland Avenue, MC 2026,
Chicago, IL 60637, United States
4 School of Information Science and Technology, Aichi Prefectural University, 1522-3
Ibaragabasama, Nagakute, Aichi 480-1198, Japan
Corresponding author: Shi, Z. ([email protected])
Volume: 3
Issue: 4
Pages: 777-783
Language: English
ISSN: 21852766
Abstract: It is usually a difficult problem to segment heterogeneous objects from chest
radiographs correctly using the conventional snake models. To solve this problem, a sparse field
snake model is proposed and employed for lung segmentation on chest radiographs, in which the
Sparse Field Method (SFM) is employed instead of a level set method which is frequently used in
the conventional snake models. The basic idea of the sparse field snake is using a key point list to
track the points close to the zero level set, which means that the updating speed of a curve is only
dependent on the length of the curve, but not the size of the image. Experimental results suggest
that the proposed method was superior to other similar methods for lung segmentation on chest
radiographs. © 2012 ICIC International.
Main heading: Biological organs
Controlled terms: Radiography
Uncontrolled terms: Active contour model - Active contours - Chest radiographs Heterogeneous object - Keypoints - Level Set method - Lung segmentation - Snake
model - Sparse field method - Zero level set
Classification code: 461.2 Biological Materials and Tissue Engineering - 746 Imaging
Techniques
Database: Compendex
371.
Title: Hessian-log: A novel dot enhancement filter
Authors: Shi, Zhenghao1 ; Zhao, Minghuaf1 ; Wang, Yinghui1 ; He, Lifeng4 ; Suzuki, Kenji3 ;
Jin, Chenwang2 ; Zhang, Ming2
2 First Affiliated Hospital of School of Medicine, Xi'an Jiaotong University, No. 76, West Yanta
Volume: 6
Issue: 8
Issue date: 2012
Pages: 1987-1992
Language: English
ISSN: 21852766
Abstract: In order to make regions appearing as dots on a chest radiograph more clearly in visual,
a novel filtering method, Hessian-LoG filter, is developed in this paper. The proposed filter
consists of two major operations. First, using the eigenvalues of Hessian matrix detects dot points
in chest radiography. The derivatives of a Hessian matrix at multiple scales are convolved with an
input image at each pixel. To determine the local shape of structures at pixels in each scale, the
eigenvalues of Hessian matrix are analyzed at each pixel in the resulting image. The diameter of
the detected dot is equal to the kernel size with the highest classifrier value. Finally, dot images
are convolved with the Laplacian of Gaussian (LoG) operator. Experiments show that the
proposed enhancem filter can simultaneously enhance dot-like objects and suppress line-like
structures, and thus improve the sensitivity of nodule detection. © 2012 ICIC International.
Controlled terms: Eigenvalues and eigenfunctions - Laplace transforms - Radiography
Uncontrolled terms: Chest radiographs - Chest radiography - Eigenvalues - Filtering
method - Hessian matrices - Input image - Kernel size - Laplacian of Gaussian Local shape - Multiple scale
- Nodule detection
Classification code: 723.5 Computer Applications - 746 Imaging Techniques - 921.1
Algebra - 921.3 Mathematical Transformations
Database: Compendex
372.
Title: Hessian-LoG: A novel dot enhancement filter
Authors: Shi, Zhenghao1 ; Zhao, Minghua1 ; Wang, Yinghui1 ; He, Lifeng4 ; Suzuki, Kenji3 ;
Jin, Chenwang2 ; Zhang, Ming2
2 First Affiliated Hospital of School of Medicine, Xi'an Jiaotong University, No. 76, West Yanta
Source title: ICIC Express Letters
Abbreviated source title: ICIC Express Lett.
Volume: 6
Issue: 8
Issue date: 2012
Pages: 1987-1992
Language: English
ISSN: 1881803X
Abstract: In order to make regions appearing as dots on a chest radiograph more clearly in visual,
a novel filtering method, Hessian-LoG filter. is developed in this paper. The proposed filter
consists of two major operations. First, using the eigenvalues of Hessian matrix detects dot points
in chest radiography. The derivatives of a Hessian matrix at multiple scales are convolved with an
input image at each pixel. To determine the local shape of structures at pixels in each scale, the
eigenvalues of Hessian matrix are analyzed at each pixel in the resulting image. The diameter of
the detected dot is equal to the kernel size with the highest classifier value. Finally, dot images are
convolved with the Laplacian of Gaussian (LoG) operator. Experiments show that the proposed
enhancement filter can simultaneously enhance dot-like objects and suppress line-like structures,
and thus improve the sensitivity of nodule detection. © 2012 ICIC International.
Controlled terms: Eigenvalues and eigenfunctions - Laplace transforms - Radiography
Uncontrolled terms: Chest radiographs - Chest radiography - Eigenvalues - Filtering
method - Hessian matrices - Input image - Kernel size - Laplacian of Gaussian Local shape - Multiple scale
- Nodule detection
Classification code: 723.5 Computer Applications - 746 Imaging Techniques - 921.1
Algebra - 921.3 Mathematical Transformations
Database: Compendex
373.
Title: Application of EFGM-FEM coupling analysis for retaining wall
Authors: Si, Jianhui1 ; Fan, Rong1 ; Jian, Zheng1
Author affiliation: 1 Xi'an University of Technology, Shaanxi, China
Corresponding author: Si, J. ([email protected])
Source title: Proceedings - 2012 IEEE Symposium on Electrical and Electronics Engineering,
EEESYM 2012
Abbreviated source title: Proc. - IEEE Symp. Electr. Electron. Eng., EEESYM
Monograph title: Proceedings - 2012 IEEE Symposium on Electrical and Electronics
Engineering, EEESYM 2012
Issue date: 2012
Pages: 416-418
Language: English
ISBN-13: 9781467323659
Conference name: 2012 IEEE Symposium on Electrical and Electronics Engineering, EEESYM
2012
Conference location: Kuala Lumpur, Malaysia
United States
Abstract: Numerical model of Element Free Galerkin Method (EFGM) coupling Finite Element
Method (FEM) for retaining wall is proposed. Concrete was calculated by EFGM and
reinforcement was simulated by truss elements in FEM. The stiffness matrix of the whole structure
was gained based on displacement compatibility condition. Via analyzing one RC retaining wall,
the calculation shows that the method is feasible. © 2012 IEEE.
Main heading: Retaining walls
Controlled terms: Couplings - Electronics engineering - Finite element method Stiffness matrix
Uncontrolled terms: Coupling analysis - Displacement compatibility - Element free
Galerkin methods - Element-free Galerkin method - Finite element method FEM Truss elements
Classification code: 718 Telephone Systems and Related Technologies; Line Communications
- 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television 715 Electronic Equipment, General Purpose and Industrial - 714 Electronic Components and
Tubes - 921.6 Numerical Methods - 713 Electronic Circuits - 421 Strength of Building
Materials; Mechanical Properties - 407 Maritime and Port Structures; Rivers and Other
Waterways - 406 Highway Engineering - 405 Construction Equipment and Methods;
Surveying - 602 Mechanical Drives and Transmissions
DOI: 10.1109/EEESym.2012.6258680
Database: Compendex
374.
Title: Evaluation indicators for assessing the influence of reservoirs on downstream water
temperature
Authors: Song, Ce1 ; Zhou, Xiao-De1 ; Tang, Wang1
Author affiliation: 1 Key Lab. Cultivating Base of Eco-Hydrology Engineering of Northwest
Arid Area, Xi'an University of Technology, Xi'an 710048, China
Corresponding author: Song, C. ([email protected])
Source title: Shuikexue Jinzhan/Advances in Water Science
Abbreviated source title: Shuikexue Jinzhan
Volume: 23
Issue: 3
Pages: 419-426
Language: Chinese
ISSN: 10016791
CODEN: SHUJE6
Abstract: Assessing the influence of reservoirs on downstream water temperature constitutes an
important part of environmental impact study for hydropower development. A set of evaluation
indicator system is established from the perspective of downstream water temperature fluctuation.
The latter is the result of reservoir-induced temperature changes in downstream waters. The
evaluation indicators include the baseline deviation, the phase shift and the extreme change. Each
indicator is defined and the corresponding formula is provided. An evaluation method using the
indictors is proposed for assessing the influence of reservoirs on downstream water temperature.
The cascade reservoirs on the upstream of Yellow River are selected for a case study in an effort to
test the proposed evaluation indicator system and the evaluation method. A spatial and temporal
evaluation of the influence of reservoirs on downstream water temperature is conducted. The
result shows that the evaluation indicator system and the evaluation method are able to adequately
reveal the seasonal change of water temperature, as well as its time lagging and flattening
resulting from reservoir operations. The main characteristics of water temperature variation can
also be determined by the system and the method. Furthermore, through analyzing various
indicators at different river reaches, the cumulative influence of cascade reservoirs on downstream
water temperature can be revealed. The evaluation indicator system and evaluation method
provide a general methodology, and can be applied to other river systems to study the influence of
reservoirs on downstream water temperature.
Controlled terms: Reservoirs (water) - Temperature distribution
Uncontrolled terms: Cascade reservoirs - Cumulative influence - Environmental impact
study - Evaluation - Evaluation indicator system - Evaluation indicators Evaluation Method - General methodologies - Hydro-power development - Indicators
systems
- Reservoir operation - River systems - Seasonal changes - Temperature
changes - Temporal evaluation - Water temperatures - Yellow river
Classification code: 407.2 Waterways - 441.2 Reservoirs - 641.1 Thermodynamics
DOI: CNKI: 32.1309.P.20120501.1617.004
Database: Compendex
375.
Title: Study on the incentive system of independent directors
Authors: Song, Lin1 ; Zhang, Dan1, 2 ; Li, Yuan3
Author affiliation: 1 School of Economics and Finance, Xi'an Jiaotong University, Xi'an,
Shaanxi, China
2 School of Economics and Management, Xi'an University of Technology, Xi'an, Shaanxi, China
3 Shaanxi Branch, Agricultural Bank of China, Xi'an, Shaanxi, China
Corresponding author: Song, L. ([email protected])
Source title: Proceeding of 2012 International Conference on Information Management,
Abbreviated source title: Proc. Int. Conf. Inf. Manage., Innov. Manage. Ind. Eng., ICIII
Volume: 3
Monograph title: Proceeding of 2012 International Conference on Information Management,
Issue date: 2012
Pages: 523-526
Language: English
ISBN-13: 9781467319324
Conference name: 2012 International Conference on Information Management, Innovation
United States
Abstract: In China, due to the lack of the reputation incentive system, the salary system for
independent directors plays an important role in improving the corporate governance. In this paper,
the salary system for independent directors is thought of as an issue of the formation of
equilibrium price in the process of market transaction. Then, this paper indicates that since the
formation of our independent director mechanism is passive, only if restructuring the incentive
system, can our corporate governance structure be improved. ©2012 IEEE.
Main heading: Industrial engineering
Controlled terms: Industrial management - Information management - Innovation Wages
Uncontrolled terms: Corporate governance - Equilibrium price - Incentive systems Independent director - Market transactions
Classification code: 912 Industrial Engineering and Management
Database: Compendex
376.
Title: Study on modulation strategy with neutral-point balancing control for three-level two
stage matrix converter
Authors: Song, Weizhang1 ; Zhong, Yanru1 ; Ye, Ying1 ; Xue, Chen1
Corresponding author: Song, W. ([email protected])
Volume: 433-440
Issue date: 2012
Pages: 6951-6958
Language: English
ISSN: 10226680
ISBN-13: 9783037853191
Abstract: Aim to the three-level neutral-point potential balancing problem of three-level two
stage matrix converter(TLTSMC),which is a new topology from matrix converter family that can
synthesis three-level voltage in order to improve output performance in terms of reduced harmonic
contents, this paper discussed the operating principles and a space vector modulation strategy with
neutral-point potential balancing control for this topology. The method is divided into two control
stages. Space vector PWM without zero vectors is used for rectifier stage. The modulation method
of inverter stage based on the virtual space vector concept only requires the condition that the flow
of neutral-point current equals zero, so the neutral-point balancing problem of this topology is
effectively settled. The commutation principle of TLTSMC is analyzed. Finally, the validity and
feasibility of this modulation method is tested by simulation and experiment, the result indicates
that TLTSMC with the modulation strategy produces better output performance in terms of
reduced harmonic contents and is also able to maintain sinusoidal input currents, furthermore,
guarantees the balancing of neutral-point potential over the full range of output voltage. © (2012)
Main heading: Modulation
Controlled terms: Information technology - Materials science - Topology - Vector
spaces - Vectors
Uncontrolled terms: Balancing problems - Commutation principle - Control stage Harmonic contents - Inverter stage - Matrix converter - Modulation methods Modulation strategy - Neutral point potential - Operating principles - Output
performance - Output voltages - Rectifier stage - Sinusoidal input - Space Vector
Modulation - Space vector PWM - Three-level - Two stage matrix converter Virtual spaces - Zero vectors
- 903 Information Science - 921 Mathematics - 951 Materials Science
Database: Compendex
377.
Title: Space vector over-modulation strategy used for two-stage matrix converters
Authors: Song, Weizhang1 ; Zhong, Yanru1 ; Wei, Xiping1 ; Sun, Xiangdong1
Corresponding author: Song, W.
Volume: 27
Issue: 9
Pages: 242-250
Language: Chinese
ISSN: 10006753
CODEN: DIJXE5
Abstract: Aiming at the low voltage transfer ratio shortage of two-stage matrix converter
(TSMC), on the basis of over-modulation strategy of current and voltage source converter, a space
vector over-modulation algorithm suitable for rectifier and inverter of TSMC is proposed
respectively, which improves the maximum voltage transfer ratio from 0.866 to 1.053 and controls
the output voltage fundamental amplitude linearly as well as owns the low total harmonic
distortion. Moreover, the inverter modulation strategy with this over-modulation algorithm can
effectively immune to the influence imposed on the output performance caused by surge and sag
input voltages. In addition, the algorithm are neither necessary to store a lot of data nor to do
complex calculation, which are very suitable for implement. The feasibility and validity of the
proposed over-modulation strategy are verified by simulation and experiment.
Main heading: Modulation
Controlled terms: Electric rectifiers - Power converters - Vector spaces
Uncontrolled terms: Current and voltage sources - Input voltages - Low voltages Modulation strategy - Output performance - Output voltages - Overmodulation Space Vector - Space Vector Modulation - Total harmonic distortion (THD) - Two
stage matrix converter - Voltage transfer ratio
Classification code: 704.2 Electric Equipment - 714.2 Semiconductor Devices and Integrated
Circuits - 716 Telecommunication; Radar, Radio and Television - 717 Optical
- 921 Mathematics
Database: Compendex
378.
Title: Establishing and application of ecology-oriented water resources optimal allocation model
in Chanba River basin
Authors: Song, Xiao Yu1 ; Li, Huai You2 ; Shi, Wen Juan1
Author affiliation: 1 Northwest Key Laboratory of Water Resource and Environment Ecology,
Ministry of Education, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
2 Xifeng Experiment Station of Soil and Water Conservation, Yellow River Conservancy
Committee, Xifeng, Gansu 745000, China
Corresponding author: Song, X.Y. ([email protected])
Volume: 518-523
Issue date: 2012
Pages: 4165-4170
Language: English
ISSN: 10226680
ISBN-13: 9783037854167
2012
Abstract: In this paper, based on the fact of water resources shortage, environmental degradation
in Chanba River basin, using multi-objective optimization theory, we established the
ecology-oriented water resources optimal allocation model and achieved the coupling between
water quantity and quality. According to supply and demand of water resources in two levels of
years (2020, 2030) and the guaranteed rate 75%, developed model parameters (coefficients),
called the optimization function to solve it. The model is applied to Chanba River basin, indicating
that the model is reasonable, efficient algorithms The optimal allocation model and the results
reflect the concept of sustainable development for ecological, economic efficiency and help to
improve water supply reliability, the sustainable use of water resources planning and management
provides a basis for decision making. © (2012) Trans Tech Publications, Switzerland.
Controlled terms: Algorithms - Decision making - Degradation - Ecology Economics - Multiobjective optimization - Site selection - Water supply Watersheds
Uncontrolled terms: Developed model - Ecology-oriented - Economic efficiency Guaranteed rate - Multi objective optimizations (MOO) - Optimal allocation Optimization function - River basins - Supply and demand - Supply reliability Sustainable use - Water quantities - Water resources planning
Classification code: 921.5 Optimization Techniques - 921 Mathematics - 912.2
Management - 802.2 Chemical Reactions - 723 Computer Software, Data Handling and
Applications - 971 Social Sciences - 454.3 Ecology and Ecosystems - 444.1 Surface
Water - 444 Water Resources - 403 Urban and Regional Planning and Development 402 Buildings and Towers - 446.1 Water Supply Systems
Database: Compendex
379.
Title: First-principle study on the doping mechanism of ZnO:Sb
Authors: Song, Yang1 ; Liang, Shu-Hua1
Corresponding author: Liang, S.-H. ([email protected])
Volume: 41
Issue: 2
Pages: 528-534
Language: Chinese
ISSN: 1000985X
CODEN: RJXUEN
Abstract: The doping mechanism of ZnO:Sb was investigated through the calculation of the
geometric structures, band structures and density of states of wurtzite ZnO and three types of Sb
doped ZnO models (SbO, SbZn and SbZn-2VZn) by the first-principles density functional theory.
The calculated results show that Sb doping could give rise to the expansion of ZnO lattice to some
extent, and SbZn-2VZn complex model has the least expansion and the shortest bond length,
indicated that this structure had the highest chemical stability. Based on the analysis of energy
band and the density of states, it is learnt that it is irrational for SbO and SbZn models, while the
presence of VZn in SbZn-2VZn complex defects can introduce nonlocal hole carriers in valence
band. The quantitative calculations also confirm that SbZn-2VZn complex can hold the most
electrons. This can explain why the electrical conductivity of ZnO crystal can be improved.
According to the calculated results of formation energy, it is known that SbZn-2VZn complex has
the lowest formation energy under O-rich condition. It suggests that O-rich condition is more
beneficial for the p-type doping ZnO.
Main heading: Zinc
Controlled terms: Band structure - Calculations - Density functional theory - Electric
conductivity - Zinc oxide - Zinc sulfide
Uncontrolled terms: Complex defects - Complex model - Density of state - Doping
mechanism - Electrical conductivity - First-principle study - First-principles First-principles density functional theory - Formation energies - Geometric structure
Hole carriers - Large scale - Nonlocal - P-type doping - Quantitative calculation Sb doping - Sb-doped - Wurtzites - ZnO - ZnO crystals
Classification code: 933 Solid State Physics - 921 Mathematics - 804.2 Inorganic
Compounds - 933.3 Electronic Structure of Solids - 723 Computer Software, Data
Handling and Applications - 701.1 Electricity: Basic Concepts and Phenomena
Zinc and Alloys - 721 Computer Circuits and Logic Elements
Database: Compendex
- 546.3
380.
Title: A solution to steady-state temperature distribution for N-combination-layer viscoelastic
suspensions with nonuniform heat generation
Authors: Song, Yong1, 2 ; Sun, Dagang1, 2 ; Zhang, Xin1 ; Yan, Bijuan2
Author affiliation: 1 Faculty of Mechanical and Precision Instrument Engineering, Xian
University of Technology, Xian, Shannxi, China
2 School of Mechanical and Electronic Engineering, Taiyuan University of Science and
Technology, 66 Wailu Road, Taiyuna, Shanxi, China
Corresponding author: Song, Y. ([email protected])
Source title: International Journal of Computational Methods in Engineering Science and
Mechanics
Abbreviated source title: Int. J. Comput. Methods Eng. Sci. Mech.
Volume: 12
Issue: 6
Pages: 261-269
Language: English
ISSN: 15502287
E-ISSN: 15502295
States
Abstract: A method is proposed for solving the steady-state temperature distribution of
N-combination-layer viscoelastic suspensions with nonuniform heat generation. The suspension's
heat flow and temperature distribution formulas are derived and their transformations are analyzed
to demonstrate the validation in theory. Two numerical examples are performed to verify the
correctness of the proposed method. The temperature results obtained by the formulas are
compared with those obtained by the finite element method (FEM). Strong consistency is shown
between the results, which indicates the method is feasible. The proposed method can provide a
reference for the development of high-performance N-combination-layer viscoelastic suspensions.
© 2011 Copyright Taylor and Francis Group, LLC.
Main heading: Temperature distribution
Controlled terms: Finite element method - Heat generation - Solutions
Uncontrolled terms: Construction vehicle - Numerical example - Steady-state
temperature - Strong consistency
Classification code: 921.6 Numerical Methods - 804 Chemical Products Generally - 803
Chemical Agents and Basic Industrial Chemicals - 801 Chemistry - 643 Space Heating,
Ventilation and Air Conditioning - 642 Industrial Furnaces and Process Heating - 641.1
Thermodynamics - 641 Heat and Mass Transfer; Thermodynamics - 615 Thermoelectric,
Magnetohydrodynamic and Other Power Generators
DOI: 10.1080/15502287.2011.615793
Database: Compendex
381.
Title: An analytical solution to steady-state temperature distribution of N-layer viscoelastic
suspensions used in crawler vehicles
Authors: Song, Yong1 ; Sun, Dagang1, 2 ; Zhang, Xin1 ; Yan, Bijuan2
University of Technology, 5 Jinhua South Road, Xi'an, 710048, Shannxi, China
Technology, 66 Waliu Road, Taiyuan, 030024, Shanxi, China
Corresponding author: Song, Y. ([email protected])
Source title: International Journal of Heavy Vehicle Systems
Abbreviated source title: Int. J. Heavy Veh. Syst.
Volume: 19
Issue: 3
Pages: 281-298
Language: English
ISSN: 1744232X
E-ISSN: 17415152
Publisher: Inderscience Enterprises Ltd., Editorial Office, P O Box 735, Olney, Bucks., MK46
5WB, MK46 5WB, United Kingdom
Abstract: An analytical method is proposed for solving the steady-state temperature distribution
of N-layer viscoelastic suspensions with non-uniform heat generation. To find the temperature
distribution laws of the suspension, the heat flow and temperature distribution formulas are
derived. Two numerical examples are performed to verify the correction of the derived formulas.
The temperature results obtained by the derived formulas are compared with those obtained by
Finite Element Method (FEM). The results show strong consistency with each other, which
indicates that the proposed method is valid and feasible. The derived formulas can provide
reference for the development of high performance N-layer viscoelastic suspensions. Copyright ©
2012 Inderscience Enterprises Ltd.
Main heading: Automobile suspensions
Controlled terms: Finite element method - Multilayers - Temperature distribution
Uncontrolled terms: Analytical method - Construction vehicle - Finite element method
FEM - Numerical example - Steady state - Steady-state temperature - Strong
consistency
Classification code: 632.1 Hydraulics - 641.1 Thermodynamics - 921.6 Numerical
Methods - 933.1 Crystalline Solids
DOI: 10.1504/IJHVS.2012.047917
Database: Compendex
382.
Title: A new nonlinear viscoelasto-plastic rheological model for rocks
Authors: Song, Yong-Jun1, 2 ; Lei, Sheng-You1 ; Han, Tie-Lin3
Author affiliation: 1 School of Highway, Chang'an University, Xi'an 710064, China
2 Department of Engineering Technology, Xijing University, Xi'an 710123, China
3 Research Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048,
China
Corresponding author: Song, Y.-J. ([email protected])
Volume: 33
Issue: 7
Pages: 2076-2080
Language: Chinese
ISSN: 10007598
Abstract: By means of classic element combination modeling ideas, making fractional calculus
soft-matter element and spring element in series and combining a visco-plastic body of power
function, a new nonlinear viscoelasto-plastic rheological model with four elements is put forward.
The constitutive equation and creep equation of the model are given and the creep curves in
different stress conditions are obtained. It can be found that nonlinear gradual change process of
steady creep phase and creep speed rate of accelerated creep stage of rock can be effectively
simulated by adjusting creep parameters. In lower stress level, the model can describe the initial
creep and steady creep of rocks. Moreover, if the stress level exceeds the long-term strength of
rocks, the model can reflect the accelerated creep characteristics. The fitted results show that the
nonlinear rheological model which contains soft-matter element and visco-plastic body of power
function can effectively describe the creep properties of rocks and reduce the number of
components and parameters of combination model.
Main heading: Creep
Controlled terms: Calculations - Frozen soils - Rheology - Rocks
Uncontrolled terms: Accelerated creeps - Combination models - Creep curves Creep equations - Creep parameters - Creep properties - Fractional calculus Gradual changes - Long-term strength - Lower stress - Number of components Power functions - Rheological models - Soft-matter element - Speed rates - Spring
element - Stress condition - Stress levels
Classification code: 931.1 Mechanics - 921 Mathematics - 723 Computer Software, Data
Handling and Applications - 951 Materials Science - 721 Computer Circuits and Logic
Elements - 481.1 Geology - 421 Strength of Building Materials; Mechanical Properties 483.1 Soils and Soil Mechanics
Database: Compendex
383.
Title: Prototype coupled-vibration test of generator set and power-house and FEM feedback
analysis
Authors: Song, Zhiqiang1 ; Ma, Zhenyue2
2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning
116023, China
Corresponding author: Song, Z. ([email protected])
Volume: 31
Issue: 2
Pages: 170-174+205
Language: Chinese
ISSN: 10031243
Abstract: Prototype vibrations were tested for a generator set and hydropower house on
Lancangjiang River in Yunnan. Their mechanism is analyzed in this paper and they are evaluated
by the corresponding rules. The features of vibration sources and propagation paths are examined,
and a finite-element method is used to compute the dynamic responses of the power house. Some
suggestions for operation safety and vibration control are given.
Main heading: Houses
Controlled terms: Dynamic response - Finite element method - Hydraulic structures Hydroelectric power
Uncontrolled terms: Coupled vibrations - Feedback analysis - Hydropower house Operation safety - Propagation paths - Prototype tests - Vibration sources
Classification code: 402.3 Residences - 408.1 Structural Design, General - 441 Dams and
Reservoirs; Hydro Development - 611 Hydroelectric and Tidal Power Plants - 611.1
Hydroelectric Power Plants - 921.6 Numerical Methods
Database: Compendex
384.
Title: Prototype vibration test and dynamic parameter identification of a generator set shaft
system
Authors: Song, Zhiqiang1 ; Liu, Yunhe1 ; Ma, Zhenyue2
2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116023, China
Volume: 31
Issue: 2
Pages: 251-257
Language: Chinese
ISSN: 10031243
Abstract: Prototype tests were conducted for a generator set and the results were evaluated.
Since the operation of this large generator set is continuous and shaft oil-film exists only when the
unit is operating, application of an effective excitation to the shaft system is difficult. In this work,
a time-domain identification method of modal parameters was adopted to study the shaft
self-vibration features. This is a multiple signal classification method for the identification, while
the traditional method has limitations in many cases such as few test cases or few test points. In
the new method, the dynamic parameters of shaft oil-film are used for identification. The
identification results were verified by FEM numerical simulation, and the method offers an
effective tool for vibration response analysis.
Main heading: Parameter estimation
Controlled terms: Identification (control systems) - Modal analysis - Wavelet analysis
Uncontrolled terms: Dynamic characteristics - Hydroelectric units - Modal - Oil-film
- Parameters identification - Shaft system
Classification code: 731.1 Control Systems - 921 Mathematics
Database: Compendex
385.
Title: Analysis on torsional vibrations of hydro generator shaft system considering hydraulic and
electromagnetic excitations
Authors: Song, Zhiqiang1 ; Ma, Zhenyue2
2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning
116023, China
Volume: 31
Issue: 3
Pages: 240-245
Language: Chinese
ISSN: 10031243
Abstract: This paper derives expressions of electromagnetic torque and electromagnetic stiffness
with energy method and develops a mechanical-electrical coupling torque vibration model for a
hydro generator shaft system under hydraulic and electromagnetic excitations, focusing on a study
on the effects of rotor moment inertia, spiders' stiffness, added mass of water and hydraulic
excitation frequency. Frequency response curves of shaft torque, torsional vibration angle and
electromagnetic torque are presented, including the mechanical-electrical coupling resonance to
hydraulic excitations of zero and first order frequencies and the influences of excitation electric
current and internal active power angle. These results provide a reference for design and stable
operation of hydro generator set. © right.
Main heading: Electric excitation
Controlled terms: Elastic waves - Electromagnetism - Frequency response - Machine
vibrations - Stiffness - Torque
Uncontrolled terms: Active power - Added mass - Electrical coupling Electromagnetic excitations - Electromagnetic torques - Energy method - Excitation
frequency - First-order frequency - Frequency-response curves - Hydro generator
Hydro-generator shaft - Mechanical-Electrical coupling - Shaft torque - Stable
operation - Torsional vibration - Vibration model
Classification code: 931.1 Mechanics - 751.1 Acoustic Waves - 731.1 Control Systems
- 951 Materials Science - 701.1 Electricity: Basic Concepts and Phenomena - 422
Strength of Building Materials; Test Equipment and Methods - 421 Strength of Building
Materials; Mechanical Properties - 701 Electricity and Magnetism
Database: Compendex
386.
Title: Sensitivity analysis of generator set parameters considering magnetic and seal effects
Authors: Song, Zhiqiang1 ; Ma, Zhenyue2 ; Zhang, Dawei3
2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116023, China
3 Shen Kan Engineering and Technology Corporation, Shenyang 110016, China
Volume: 31
Issue: 1
Pages: 226-231+212
Language: Chinese
ISSN: 10031243
Abstract: A magnetic stiffness matrix was derived to express the energy of air-gap magnetic
field of generator rotor, and an eight-parameter model and Muszynska model were used to
simulate the seal effect of turbine impeller. A shaft system model was developed with
consideration of the vibration sources in the magnetic field and the hydraulic seal. By adopting
these models, sensitivity analysis was conducted for the responses of critical speed to various
parameters of magnetic field, seal, journal stiffness and outer diameter. This study offers
references for dynamic design and operation of generator set. © Right.
Main heading: Magnetic fields
Controlled terms: Hydroelectric generators - Sensitivity analysis - Stiffness Stiffness matrix
Uncontrolled terms: Air-gap magnetic field - Critical speed - Dynamic design Generator rotors - Hydraulic seals - Muszynska model - Outer diameters Sensitivity - Shaft system - Turbine impellers - Vibration sources
Classification code: 421 Strength of Building Materials; Mechanical Properties - 422
Strength of Building Materials; Test Equipment and Methods - 611.1 Hydroelectric Power
Plants - 701.2 Magnetism: Basic Concepts and Phenomena - 921 Mathematics - 951
Materials Science
Database: Compendex
387.
Title: The coordination for logistics alliance of manufacturer and TPL with uncertain demand
Authors: Su, Ju-Ning1 ; Shi, Chuan-Fang1 ; He, Yan-Qing1
Xi'an 710054, China
Corresponding author: Su, J.-N.
Volume: 160 AISC
Issue: VOL. 2
Monograph title: Advances in Future Computerand Control Systems
Issue date: 2012
Pages: 501-506
Language: English
ISSN: 18675662
ISBN-13: 9783642293894
Conference name: Future Computer and Control Systems, FCCS 2012
Conference location: Changsha, China
Abstract: In the alliance of the manufacturer and TPL, the manufacturer logistics service would
exist in supply short risk because the market demand which the manufacturer facing was uncertain.
The coordination of logistics alliance was studied with uncertain logistics demand. Firstly, the
decision behaviors of the manufacturer and TPL were analyzed in decentralized decision. Then the
results between decentralized decision and centralized decision were compared, and found that
decentralized decision couldn't reach the performances of centralized decision. The coordination
mechanism based on cost-sharing was proposed. The analysis results of the coordination model
indicated that the Pareto improvement of logistics alliance parties and the optimization of whole
alliance could be achieved by designing appropriate cost-sharing ratio. © 2012 Springer-Verlag
GmbH.
Main heading: Cost benefit analysis
Controlled terms: Control systems - Cost effectiveness - Manufacture
Uncontrolled terms: coordination - Coordination mechanisms - Coordination model Cost sharing - Logistics alliances - Logistics demand - Logistics services - Market
demand - Pareto improvements - Uncertain demand
Classification code: 537.1 Heat Treatment Processes - 731.1 Control Systems - 911 Cost
and Value Engineering; Industrial Economics - 911.2 Industrial Economics
DOI: 10.1007/978-3-642-29390-0_80
Database: Compendex
388.
Title: Cooperative R&D analysis in time-sensitive supply chain under asymmetry information
Authors: Su, Ju-Ning1 ; He, Yan-Qing1
Xi'an 710054, China
Corresponding author: Su, J.-N.
Volume: 160 AISC
Issue: VOL. 2
Monograph title: Advances in Future Computerand Control Systems
Issue date: 2012
Pages: 513-518
Language: English
ISSN: 18675662
ISBN-13: 9783642293894
Conference name: Future Computer and Control Systems, FCCS 2012
Conference location: Changsha, China
Abstract: A supply chain with time-sensitive demand is discussed in the paper, which is
consisted of a AM (assembly manufacturer) and a CS (component supplier). The R&D price
subsidy strategy in supply chain with symmetric information structure was first discussed. Then
the R&D price subsidy strategy in supply chain under asymmetry information about CS's R&D
ability was discussed. Some study conclusions which were drawn from a numerical example show
that under symmetric information, the higher R&D ability of the CS, the less amount of price
subsidy of the AM, and the profit of CS reduced too. But under asymmetry information, in order
to stimulate the CS, the AM has to pay additional cost for the unknown R&D ability of the CS,
this results in the increase of the amount of price subsidy, and the reduction of the AM's profit,
while the profit of the CS increases due to holding private information. As a result, the whole
supply chain coordination can not be achieved. © 2012 Springer-Verlag GmbH.
Main heading: Costs
Controlled terms: Control systems - Profitability - Supply chains
Uncontrolled terms: Additional costs - Asymmetric information - Information structures
- Numerical example - price subsidy strategy - Private information - Supply chain
coordination - Time-sensitive demand
Classification code: 731.1 Control Systems - 911 Cost and Value Engineering; Industrial
Economics - 911.2 Industrial Economics - 912 Industrial Engineering and Management 913 Production Planning and Control; Manufacturing
DOI: 10.1007/978-3-642-29390-0_82
Database: Compendex
389.
Title: Analysis of hydro turbine vibration signals based on empirical mode decomposition and
Wigner-Ville distribution
Authors: Su, Li1 ; Nan, Haipeng1 ; Yu, Xiangyang1 ; Wu, Luochang1 ; Wang, Jin2
2 Hydrochina Guiyang Engineering Corporation, Guiyang 550081, China
Corresponding author: Su, L. ([email protected])
Volume: 31
Issue: 2
Pages: 240-244+250
Language: Chinese
ISSN: 10031243
Abstract: To avoid the defect of empirical mode decomposition (EMD) in mode mixing and the
inherent defect of Wigner-Ville distribution (WVD) in cross-term interference of multi-component
non-stationary signals, this paper proposes a method of combining ensemble empirical mode
decomposition (EEMD) and WVD. Due to its WVD features, this method can better describe the
time variation of signals. The simulation results of hydro turbine vibration signals show that the
proposed method can effectively suppress the cross-term interference and thus provides an
effective analysis tool for fault diagnosis of hydro turbine.
Main heading: Signal processing
Controlled terms: Defects - Hydraulic turbines - Wigner-Ville distribution
Uncontrolled terms: Cross-term interference - EEMD - Effective analysis - Empirical
Mode Decomposition - Ensemble empirical mode decomposition - Hydroturbines Multicomponents - Nonstationary signals - Time frequency analysis - Time variations
- Vibration signal
Classification code: 423 Non Mechanical Properties and Tests of Building Materials - 617.1
Hydraulic Turbines - 716.1 Information Theory and Signal Processing - 922 Statistical
Methods - 951 Materials Science
Database: Compendex
390.
Title: Application of wavelet denoising of improved threshold function to vibration signal
analysis of hydroelectric units
Authors: Su, Li1 ; Nan, Haipeng1 ; Yu, Xiangyang1 ; Wu, Luochang1 ; Wang, Jin2
Author affiliation: 1 Institute of Water resources and Hydropower Engineering, Xi'an
2 Hydrochina Guiyang Engineering Corporation, Guiyang 550081, China
Corresponding author: Su, L. ([email protected])
Volume: 31
Issue: 3
Pages: 246-251
Language: Chinese
ISSN: 10031243
Abstract: Threshold denoising in wavelet domain is a traditional algorithm for noise reduction of
hydro turbine vibration signals. This paper puts forward a denoise analysis method of improved
threshold function for turbine vibration monitoring to solve the traditional method's conflict
between noise pollution control and signal details retaining. Signal sampling and denoise
calculation are implemented with a code of Labview and MATLAB languages. A comparison of
the denoise capability of simulated signals verifies that this new method gives better RMSE
performance and RSN gains than the traditional method. A detailed comparison of retained
vibration characteristics of the original signals with the denoised signals by different denoise
methods shows that the new method is effective and superior in retaining each characteristic
component to the traditional function. © right.
Main heading: Signal denoising
Controlled terms: Noise pollution control - Turbines
Uncontrolled terms: Analysis method - De-Noise - De-noised signals - Hydroelectic
unit - Hydroelectric units - Hydroturbines - LabViEW - Matlab languages Original signal - Simulated signals
- Threshold denoising - Threshold functions Vibration characteristics - Vibration monitoring - Vibration signal - Vibration signal
analysis - Wavelet denoising - Wavelet domain
Classification code: 461.7 Health Care - 612.3 Gas Turbines and Engines - 716.1
Information Theory and Signal Processing
Database: Compendex
391.
Title: Numerical simulation of root water uptake for grape in extremely arid region
Authors: Su, Lijun1 ; Wang, Quanjiu1 ; Bai, Yungang2 ; Zeng, Chen3 ; Nan, Qingwei1 ; Lu,
Zhenlin2
2 Xinjiang Institute of Water Resources and Hydropower Research, Urumchi 830049, China
3 Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institutes of
Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China
Corresponding author: Wang, Q. ([email protected])
Engineering
Volume: 28
Issue: 6
Pages: 88-93
Language: Chinese
ISSN: 10026819
CODEN: NGOXEO
Abstract: According to the researches about the root distributions of mature grape, the
characteristics of root water uptake and the laws of water consumption, it can be provided
technical support for formulating the optimum irrigation system, proposing reasonable water
management pattern and creating technical system of high-efficiency utilization of water. Based
on analyzing the characteristic of water uptake and the measured data of the grape root
distribution under condition of irrigation, a meshless numerical simulation model for
one-dimensional water flow in unsaturated soils and one-dimensional root distribution function of
grape were introduced in this paper. Further, the root distribution function and the other empirical
root distribution functions were applied to numerical simulation model to demonstrate the
appropriateness. According to the comparison between the results of dynamic simulation and data
of field experiment, it shows that the simulated values of fitting root distribution, exponential root
distribution, linear root distribution and piecewise root distribution are coincide well with
measured values, and all of the relative errors are below 1%. However, compared with other root
distribution functions, the error of exponential root distribution is larger. Therefore the fitting root
distribution and the meshless numerical model can simulate the root water uptake of grape and the
soil water movement in extremely arid region well. Moreover, under the condition of the shortage
of the field root length distribution, linear root distribution and piecewise root distribution can be
used to describe the practical root distribution of grape, and provide reference for using
one-dimensional simple root distribution model to analyze the characteristic of grape water uptake
under irrigation condition.
Main heading: Fruits
Controlled terms: Arid regions - Computer simulation - Distribution functions Irrigation - Models - Numerical methods - Soil moisture - Water management Water supply
Uncontrolled terms: Field experiment - Irrigation systems - Management pattern Measured data - Mesh-less methods - Meshless - Numerical simulation models Piece-wise - Relative errors - Root distribution - Root length - Root-water uptake
- Simple root - Soil water movement - Technical support - Technical systems Unsaturated soil - Water consumption - Water flows - Water uptake
Classification code: 922.1 Probability Theory - 921.6 Numerical Methods - 902.1
Engineering Graphics - 821.4 Agricultural Products - 821.3 Agricultural Methods 723.5 Computer Applications - 483.1 Soils and Soil Mechanics - 446.1 Water Supply
Systems - 446 Waterworks - 444 Water Resources - 443 Meteorology
DOI: 10.3969/j.issn.1002-6819.2012.06.015
Database: Compendex
392.
Title: The DC capacitors' voltage balancing strategy for cascaded H-bridge converter based
STATCOM
Authors: Su, Zhonglai1 ; Zeng, Guang1 ; Zhang, Jinggang1 ; Zhou, Bo1
Xi'an, China
Corresponding author: Su, Z. ([email protected])
Asia, IPEMC
Volume: 4
Issue date: 2012
Pages: 2683-2686
Language: English
ISBN-13: 9781457720864
United States
Abstract: The DC capacitors' voltage balancing strategy is one of the key technique of cascaded
H-bridge STATCOM, because the DC capacitors of cascaded H-bridge STATCOM playing an
important role in supporting DC voltage. The impact of H-bridge parameters on the DC capacitors'
voltage has been analyzed based on then static mathematical model of DC capacitors of cascaded
STATCOM. And traditional pulse rotation control method can make capacitors' voltage balance in
the premise of no change of reactive current's THD. But this method has the disadvantage of
capacitors' voltage balance slowly and bad steady performance. According to the advantages and
disadvantages of traditional pulse rotation control method, an optimization pulse rotation control
method is proposed in this paper to overcome the shortcoming of capacitors' voltage balance
slowly and bad steady performance by pulse rotation control method. And the principle and
characteristics of this optimization strategy is analyzed. Simulation mode of 11-level cascade
STATCOM has been developed to verify the theory analysis. © 2012 IEEE.
Main heading: Capacitors
Controlled terms: Bridge circuits - Electric current regulators - Mathematical models Motion control - Optimization - Power electronics - Rotation - Voltage control
Uncontrolled terms: Cascaded H-bridge - Cascaded H-bridge converter - Dc capacitor DC voltage - H-bridges - Key techniques - Optimization strategy - Reactive
currents - Rotation control - Statcom - Steady performance - Voltage balance Voltage balancing
Classification code: 921 Mathematics - 731.3 Specific Variables Control - 715.2
Industrial Electronic Equipment - 921.5 Optimization Techniques - 704.2 Electric
Equipment - 703.1 Electric Networks - 601.1 Mechanical Devices - 704.1 Electric
Components
DOI: 10.1109/IPEMC.2012.6259286
Database: Compendex
393.
Title: Study on the color printer characterization models by analyzing different interpolation
algorithms
Authors: Sun, Bangyong1 ; Zhou, Shisheng1 ; Tian, Chen2 ; Wu, Xiaoxing3
Author affiliation: 1 Faculty of Printing and Packaging Engineering, Xi'an Univ. of Tech, Xi'an
710048, China
2 Xi'an PGA Teaching Center, Int. EDUKEYS Co.,Ltd, China
3 City College, Xi'an Jiaotong University, Xi'an 710018, China
Corresponding author: Sun, B. ([email protected])
Volume: 4
Issue: 11
Pages: 328-336
Language: English
ISSN: 19763700
E-ISSN: 22339345
Abstract: To find a better characterization model for printers, different 3D interpolation models
are analyzed. Firstly, the main principle of 3D look-up-table that interpolation technique based on
is introduced; and then the geometric structure and expression of four different interpolation
models-trilinear, tetrahedron, pyramid, prism-are analyzed; at last the precision of these four
algorithms is tested on the Epson printer. In the experiment the test shows that all 3D interpolation
methods get less errors than regression method and BP network; and among the four interpolation
methods, the tetrahedron model get smaller average errors and have better error distribution than
others, which indicates that this method may be the firstly-selected model for printer
characterization.
Controlled terms: Algorithms - Characterization - Computational mechanics - Errors
- Geometry - Interpolation - Printing presses - Three dimensional computer graphics
Uncontrolled terms: Average errors - BP networks - Color printer - Error
distributions - Geometric structure - Interpolation algorithms - Interpolation method Interpolation techniques - Look-up-table - Regression method
- Tetrahedron model
Classification code: 723.5 Computer Applications - 745.1.1 Printing Equipment - 902.1
Engineering Graphics - 921 Mathematics - 921.6 Numerical Methods - 951 Materials
Science
Database: Compendex
394.
Title: Application of urban water demand prediction model by using particle swarm algorithm
based on simulated annealing
Authors: Sun, Bo1 ; Xie, Jiancang1 ; Wang, Ni1
Author affiliation: 1 Xi'an University of Technology, Xi'an Shannxi 710048, China
Corresponding author: Sun, B. ([email protected])
Volume: 155-156
Monograph title: Mechanical Engineering and Green Manufacturing II, MEGM 2012
Issue date: 2012
Pages: 102-106
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037853771
Conference name: 2nd International Conference on Mechanical Engineering and Green
Manufacturing, MEGM 2012
Sponsor: National Natural Science Foundation of China; Chongqing University; Hunan Institute
of Engineering; Chongqing Normal University; Shanghai Jiao Tong University
Abstract: Water demand prediction is a complicated multifactor, multi-level non-linear system
influenced by the urban population, industrial and economic level. The results of the prediction
accuracy have a greater uncertainty and ambiguity. As a new cluster intelligent evolutionary
algorithms, particle swarm optimization (PSO) is easy to understand, easy to implement ,and it is
very suitable for non-linear model parameters fitting problems. At the same time, we will
introduce the simulated annealing mechanism into particle swarm optimization algorithm,
constructed the optimization algorithm of simulated annealing particle swarm (SA-PSO). In the
paper, the optimization algorithm of simulated annealing particle swarm (SA-PSO) is applied to
the field of water demand prediction. Example show that compared with the particle swarm
algorithm, simulated annealing particle swarm optimization achieves a high prediction accuracy
for urban water demand prediction, and it is strong applicability in the water demand forecast. ©
(2012) Trans Tech Publications.
Main heading: Particle swarm optimization (PSO)
Controlled terms: Algorithms - Forecasting - Manufacture - Mathematical models Mechanical engineering - Simulated annealing
Uncontrolled terms: Economic level - Fitting problems - Index models - Intelligent
evolutionary algorithms - Multi-factor - Multi-level - Non-linear model Optimization algorithms - Particle swarm - Particle swarm algorithm - Particle swarm
optimization algorithm - Prediction accuracy - Urban population - Urban waters Water demand - Water demand forecasts - Water demand prediction
Classification code: 537.1 Heat Treatment Processes - 608 Mechanical Engineering, General
- 723 Computer Software, Data Handling and Applications - 921 Mathematics
Database: Compendex
395.
Title: Optimization for sandwich damping composite structure: Used in sprockets of crawler
vehicles
Authors: Sun, Dagang1, 2 ; Zhang, Xin1 ; Song, Yong1 ; Yan, Bijuan2
Technology, 710048 Xi'an, China
Technology, 030024 Taiyuan, China
Corresponding author: Zhang, X. ([email protected])
Source title: Journal of Sandwich Structures and Materials
Abbreviated source title: J. Sandw. Struct. Mater.
Volume: 14
Issue: 1
Pages: 95-110
Language: English
ISSN: 10996362
E-ISSN: 15307972
Publisher: SAGE Publications Ltd, 55 City Road, London, EC1Y 1SP, United Kingdom
Abstract: A parametric study of dynamic optimization is carried out for a vibration absorber
which consists of sandwich composites with a tube configuration and be used in the sprocket of
crawler vehicles. A decoupling method is suggested, in which the geometrical parameter, Y, and
viscoelastic material loss factor,β, are given first, then the shear parameter, x, is determined by
analyzing the coupling equations of structural parameters. Based on the temperature-frequency
effect about the viscoelastic materials, the structure optimization of the vibration absorber is
performed by taking the structural dimensions as variables, and the structural loss factors,η, and, Y,
as the objective functions. A dynamic test is executed for the optimized vibration absorber, and the
testing data show good agreement with the optimized theoretical results. A contrast experiment is
conducted in a practical bulldozer, and the results present that the vibration level is decreased
significantly by the optimized vibration absorber. © The Author(s) 2011.
Main heading: Structural optimization
Controlled terms: Beams and girders - Damping - Optimization - Shape optimization
- Sprockets - Structure (composition) - Testing - Viscoelasticity - Wheels
Uncontrolled terms: Contrast experiment - Coupling equations - Decoupling methods Dynamic optimization - Dynamic tests - Geometrical parameters - Objective functions
- Parametric study - Sandwich composites - Shear parameters - Structural
dimensions - Structural loss - Structural parameter - Structure optimization Testing data - Theoretical result - Vibration absorber - Vibration level Visco-elastic material
Classification code: 421 Strength of Building Materials; Mechanical Properties - 423.2 Non
Mechanical Properties of Building Materials: Test Methods - 601.2 Machine Components 921.5 Optimization Techniques - 931.1 Mechanics - 951 Materials Science
DOI: 10.1177/1099636211406426
Database: Compendex
396.
Title: Dynamic behavior of staggered triangular honeycomb cores under in-plane crushing
loadings
Authors: Sun, Deqiang1 ; Zhang, Weihong2 ; Yu, Jiang3
Author affiliation: 1 Shaanxi University of Science and Technology, Xi'an, P.O. Box 806,
Shaaxi 710048, China
2 Engineering Simulation and Aerospace Computing (ESAC), Key Laboratory of Contemporary
Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi'an,
Shaanxi, China
3 Xi'an University of Technology, Xi'an, Shaanxi, China
Corresponding author: Sun, D. ([email protected])
Source title: International Journal of Materials Research
Abbreviated source title: Int. J. Mater. Res.
Volume: 103
Issue: 11
Issue date: 2012
Pages: 1376-1389
Language: English
ISSN: 18625282
Publisher: Carl Hanser Verlag, Kolbergerstrasse 22, Munchen, D-81679, Germany
Abstract: A reliable finite element model was employed to investigate the effects of
configuration parameters and impact velocity on the in-plane deformation mode and dynamic
plateau stress of staggered triangular honeycomb cores at impact velocities 3-300 m s-1 under
in-plane crushing loadings. At different impact velocities, '>'-, '<'-shaped, and 'I'-shaped
deformation modes appear in turn. The effects of configuration parameters on the deformation
modes are discussed qualitatively. When all configuration parameters are kept constant, the mean
in-plane dynamic plateau stress is proportional to the square of impact velocity; for a given impact
velocity, the mean in-plane dynamic plateau stress is related to the ratio of cell-wall thickness to
edge length by power laws and to the expanding angle by complicated curves. Mean in-plane
dynamic plateau stresses are expressed by empirical equations in terms of configuration
parameters and impact velocity based on our simulation results. © 2012 Carl Hanser Verlag
GmbH & Co. KG.
Main heading: Velocity
Controlled terms: Crushing - Deformation - Finite element method - Honeycomb
structures
Uncontrolled terms: Cell-wall thickness - Configuration parameters - Deformation
modes - Dynamic behaviors - Edge length - Empirical equations - Finite element
models - Honeycomb core - Impact velocities - In-plane deformation
- Plateau
stress - Power-law
Classification code: 408.2 Structural Members and Shapes - 421 Strength of Building
Materials; Mechanical Properties - 422 Strength of Building Materials; Test Equipment and
Methods - 802.3 Chemical Operations - 921.6 Numerical Methods - 931.1 Mechanics
DOI: 10.3139/146.110767
Database: Compendex
397.
Title: Cushioning optimization of multilayer regularly-arranged circular honeycombs under
in-plane crushing loadings
Authors: Sun, Deqiang1 ; Wang, Zongqiang2 ; Feng, Junhua3
Author affiliation: 1 Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021,
China
3 Patent Examination Cooperation Center of the Patent Office, SIPO, Beijing 100190, China
Volume: 200
Issue date: 2012
Pages: 104-108
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854785
2012
Abstract: To realize the cushioning optimization of multilayer regularly-arranged circular
honeycombs under in-plane crushing loadings with high impact velocities, a finite element model
is introduced to obtain the cushioning mechanical parameters. A simplified energy absorption
model is used to evaluate the cushioning performance, which shows that the cushioning
performance is related to dynamic plateau stress and dynamic densification strain. The impact
velocity, deformation mode and configuration parameters determine them. Empirical formulas of
critical velocity of deformation mode transition, dynamic densification strain and dynamic plateau
stress are given from the discussion of numerical results. A feasible cushioning optimization
algorithm is presented in detail. © (2012) Trans Tech Publications, Switzerland.
Main heading: Optimization
Controlled terms: Algorithms - Crushing - Deformation - Energy absorption Finite element method - Honeycomb structures - Multilayers
Uncontrolled terms: Configuration parameters - Critical velocities - Deformation modes
- Dynamic densification - Empirical formulas - Energy absorption model - Finite
element models - High-impact velocities - Impact velocities - Mechanical parameters
- Numerical results - Optimal energy - Optimization algorithms - Per unit volume Plateau stress
Classification code: 931.3 Atomic and Molecular Physics - 921 Mathematics - 802.3
Chemical Operations - 933.1 Crystalline Solids - 723 Computer Software, Data Handling
and Applications - 421 Strength of Building Materials; Mechanical Properties - 408.2
Structural Members and Shapes - 422 Strength of Building Materials; Test Equipment and
Methods
Database: Compendex
398.
Title: In-plane crushing of triangular honeycomb cores, Part II: Under dynamic loadings
Authors: Sun, Deqiang1 ; Guo, Yanfeng1 ; Xia, Ronghou1
Author affiliation: 1 Xi'an University of Technology, Xi'an, Shaanxi 710048, China
Volume: 476-478
Monograph title: New Materials and Processes
Issue date: 2012
Pages: 2481-2484
Language: English
ISSN: 10226680
ISBN-13: 9783037853719
Conference name: 3rd International Conference on Manufacturing Science and Engineering,
ICMSE 2012
Abstract: The dynamic behaviors of triangular honeycombs cores (THCs) are investigated by
using the finite element (FE) simulations under the in-plane dynamic crushing loadings. With the
increasing impact velocities, different deformation modes are observed and the kinetic energy of
specimen increases rapidly. The in-plane dynamic plateau stress is the sum of the static plateau
stress and the dynamic enhancement due to the inertia effect. The static plateau stress has been
discussed in Part I. When all configuration parameters are kept constant, the dynamic
enhancement stress is proportional to the square of impact velocity. For a given impact velocity,
the dynamic enhancement stress is proportional to the density of THCs when the expanding angle
is kept constant. The in-plane dynamic plateau stress is expressed empirically in terms of
configuration parameters and impact velocity. © (2012) Trans Tech Publications.
Main heading: Honeycomb structures
Controlled terms: Deformation - Dynamic loads - Industrial applications Manufacture - Velocity
Uncontrolled terms: Configuration parameters - Deformation modes - Dynamic
behaviors - Dynamic crushing - Dynamic loadings - Finite element simulations Honeycomb core - Impact velocities - In-plane dynamic crushing - Inertia effects Plateau stress - Triangular honeycomb cores
and Control; Manufacturing - 422 Strength of Building Materials; Test Equipment and
Methods - 421 Strength of Building Materials; Mechanical Properties - 408.2 Structural
Members and Shapes - 408.1 Structural Design, General
Database: Compendex
399.
Title: In-plane crushing of square honeycomb cores, Part II: Energy absorption and cushioning
optimization
Authors: Sun, Deqiang1 ; Jiang, Zuyong2 ; Wei, Yanbin2
China
Volume: 170-173
Issue date: 2012
Pages: 3237-3240
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: The finite element (FE) model designed in Part I is used to obtain the cushioning
mechanical parameters of square honeycomb cores (SHCs) under in-plane dynamic loadings. A
simplified energy absorption model is proposed to evaluate the energy absorption performance of
SHCs, which shows that the optimal energy absorption per unit volume is related to dynamic
plateau stress and dynamic densification strain that are affected by configuration parameters and
impact velocity. The optimal energy absorption efficiency is the reciprocal of dynamic
densification strain. The dynamic plateau stress has been discussed in Part I. For SHCs, the
dynamic densification strain is independent of impact velocity and determined by configuration
parameters. The empirical formulas of cushioning mechanical parameters are derived from
physical analysis of FE results. Based on these empirical formulas, the practical cushioning
optimization algorithm is presented. © (2012) Trans Tech Publications, Switzerland.
Main heading: Dynamics
Controlled terms: Algorithms - Building materials - Civil engineering - Crushing Densification - Dynamic loads - Energy absorption - Honeycomb structures Optimization
Uncontrolled terms: Absorption performance - Configuration parameters - Dynamic
densification - Dynamic loadings - Empirical formulas - Energy absorption model Finite element models - Honeycomb core - Impact velocities - Mechanical parameters
- Optimal energy - Optimization algorithms - Per unit volume - Physical analysis Plateau stress
Classification code: 931.3 Atomic and Molecular Physics - 415 Metals, Plastics, Wood and
Other Structural Materials - 723 Computer Software, Data Handling and Applications 802.3 Chemical Operations - 921 Mathematics - 921.5 Optimization Techniques 931.1 Mechanics - 414 Masonry Materials - 412 Concrete - 411 Bituminous Materials
- 409 Civil Engineering, General - 408.2 Structural Members and Shapes - 408.1
Structural Design, General - 413 Insulating Materials
Database: Compendex
400.
Title: In-plane crushing of square honeycomb cores, part I: Mechanical behaviors
Authors: Sun, Deqiang1 ; Cao, Wenting2 ; Cai, Meng2
China
Volume: 170-173
Issue date: 2012
Pages: 3220-3223
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037854228
Abstract: Mechanical behaviors of square honeycombs cores (SHCs) are investigated by using
the finite element (FE) simulations under the in-plane dynamic crushing loadings. With the
increasing impact velocities, different deformation modes are observed. The force-displacement
curves include four regimes with distinct characteristics. The plateau stresses are calculated for the
SHCs with different configuration parameters. The dynamic plateau stress is the sum of the static
plateau stress and the dynamic enhancement due to the inertia effect. The static plateau stress is
proportional to the relative density of SHCs. The dynamic enhancement stress is proportional to
the square of impact velocity and the relation coefficient depends on the configuration parameters.
The empirical formulas of dynamic plateau stress in terms of configuration parameters and impact
velocity are given. © (2012) Trans Tech Publications, Switzerland.
Main heading: Velocity
Controlled terms: Building materials - Civil engineering - Crushing - Deformation Honeycomb structures - Mechanical engineering
Uncontrolled terms: Configuration parameters - Deformation modes - Dynamic crushing
- Empirical formulas - Finite element simulations - Force-displacement curves Honeycomb core - Impact velocities - Inertia effects - Mechanical behavior Mode transitions - Plateau stress - Relative density
Classification code: 802.3 Chemical Operations - 608 Mechanical Engineering, General 422 Strength of Building Materials; Test Equipment and Methods - 421 Strength of Building
Materials; Mechanical Properties - 415 Metals, Plastics, Wood and Other Structural Materials
- 931.1 Mechanics - 414 Masonry Materials - 412 Concrete - 411 Bituminous
Materials - 409 Civil Engineering, General - 408.2 Structural Members and Shapes 413 Insulating Materials
Database: Compendex
© 2012 Elsevier Inc. All rights reserved.

我校教师 EI 工程索引收录（2012.01.01—2012.12.25）（以第一著者音

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我校教师 EI 工程索引收录 （2012.01.01—2012.12.25） （以第一著者音

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我校教师 EI 工程索引收录（2012.01.01—2012.12.25）（以第一著者音