Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Controlled terms:Feedback - Magnetic levitation vehicles - Magnetism - Manufacture - Mechanical engineering - Spheres - State feedback - Suspensions (components) Uncontrolled terms:Air-gaps - Driving joints - Electric energies - Electromagnetic torques - High precision - Interference immunity - Magnetic energies - Magnetic levitation force - Multi degree-of-freedom - Self-test - Simulation experiments - State reconstruction - State synchronization - Suspension control - Synchronous Suspension - The state of reconstruction Classification code:537.1 Heat Treatment Processes - 601.2 Machine Components - 608 Mechanical Engineering, General - 631 Fluid Flow - 701.2 Magnetism: Basic Concepts and Phenomena - 731.1 Control Systems DOI:10.4028/www.scientific.net/AMM.34-35.1471 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110213569050 Title:Study on optimal method of combination operation of adjustable blade with variable speed for single pump unit Authors:Cheng, Jilin (1); Zhang, Lihua (1); Zhang, Rentian (1); Gong, Yi (1); Deng, Dongsheng (3); Feng, Xusong (3); Zhu, Honggeng (1); Qiu, Jinxian (1) Author affiliation:(1) Yangzhou University, Yangzhou 225009, China; (2) Jiangsu Surveying and Design Institute of Water Resources Co., Ltd., Yangzhou 225009, China; (3) Jiangsu Water Supply Co. Ltd. for S-to-N Water Diversion Project, Nanjing 210029, China Corresponding author:Cheng, J.(jlcheng@yzu.edu.cn) Source title:Shuili Fadian Xuebao/Journal of Hydroelectric Engineering Abbreviated source title:Shuili Fadian Xuebao Volume:29 Issue:6
Issue date:December 2010 Publication year:2010 Pages:217-222 Language:Chinese ISSN:10031243 Document type:Journal article (JA) Publisher:Tsinghua University Press, Beijing, 100084, China Abstract:This paper proposes a mathe, matical model of optimal combination operation of adjustable blade with variable speed for a single pump unit in consideration of tidal levels and peak-valley electricity prices. In this model, we use an objective function to minimize the electricity cost of daily operation, adopt a stage variable to divide one day period into several periods and two decision variables of setting angle and pump speed for each period, and impose a constraint condition of pumping a certain volume in a given period. To optimize this complicated system, we put forward a method that optimizes the setting angle by orthogonal experiment and the pump speed by dynamic programming. Through a comparative analysis of combination operation, adjustable blade operation and variable speed operation of the Jiangdu No. 4 pump station, we conclude that under the existing condition of head variation, whether or not the peak-valley electricity prices are considered, this station has no need of adopting the optimal combination operation, and thus no need of the frequency conversion equipments. © Copyright. Number of references:8 Main heading:Pumps Controlled terms:Dynamic programming - Hydroelectric power - Hydroelectric power plants - Landforms - Optimization - Pumping plants - Speed - Underground structures Uncontrolled terms:Adjustable blade - Hydropower engineering - Pumping stations - Single pumps - Variable speed Classification code:931.1 Mechanics - 921.5 Optimization Techniques - 618.2 Pumps - 611.1 Hydroelectric Power Plants - 481.1 Geology - 446 Waterworks - 408.1 Structural Design, General Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110913707535 Title:Contrastive analysis of performance of cement-stabilized aggregate modified with SBR emulsion and polypropylene fibers Authors:Xiao, Peng (1); Li, Ping (1) Author affiliation:(1) College of Architecture Science and Engineering, Yangzhou University, Yangzhou 225009, China Corresponding author:Xiao, P.(xp8833@yzu.edu.cn) Source title:Jianzhu Cailiao Xuebao/Journal of Building Materials Abbreviated source title:Jianzhu Cailiao Xuebao Volume:13 Issue:6
Issue date:December 2010 Publication year:2010 Pages:817-820 Language:Chinese ISSN:10079629 Document type:Journal article (JA) Publisher:Tongji University, 1239 Siping Road, Shanghai, 200092, China Abstract:Through a large amount of experiments and trial road pavement, the strength, flexural elastic modulus and anti-cracking performance of cement-stabilized aggregate modified with SBR emulsion and polypropylene fibers were compared. The results show that both SBR emulsion and polypropylene fibers can effectively improve the flexural and splitting strength of cement-stabilized aggregate, and decrease the flexural elastic modulus at the mean time. SBR emulsion has an advantage over polypropylene fibers on improving the flexural and splitting strength of cement-stabilized aggregate, but it is inferior than polypropylene fibers on decreasing its flexural elastic modulus. Both polymers can improve cement-stabilized aggregate's anti-cracking performance, and polypropylene fiber has a more significant effect. Number of references:8 Main heading:Fibers Controlled terms:Aggregates - Cements - Elastic moduli - Emulsification - Experiments - Plastic products - Roads and streets - Shrinkage - Thermoplastics Uncontrolled terms:Contrastive analysis - Cracking performance - Performance of cement - Polypropylene fiber - Road pavements - SBR emulsion - Splitting strength Classification code:901.3 Engineering Research - 817.1 Polymer Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 951 Materials Science - 802.3 Chemical Operations - 412.1 Cement - 406.2 Roads and Streets - 406 Highway Engineering - 421 Strength of Building Materials; Mechanical Properties DOI:10.3969/j.issn.1007-9629.2010.06.023 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20111013735489 Title:Automatic measurement and quantitative characteristics of rice viscosity Authors:Gao, Yuan (1); Zhou, Jiping (2); Wei, Xiaobin (2); Jiang, Nan (2); Dai, Qigen (1) Author affiliation:(1) Agricultural College of Yangzhou University, Yangzhou 225009, China; (2) College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China Corresponding author:Zhou, J.(jpzhou@yzu.edu.cn) Source title:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering Abbreviated source title:Nongye Gongcheng Xuebao Volume:26 Issue:12
Issue date:December 2010 Publication year:2010 Pages:358-362 Language:Chinese ISSN:10026819 CODEN:NGOXEO Document type:Journal article (JA) Publisher:Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China Abstract:The existing methods and techniques of rice viscosity measurement were analyzed and the mechanism in measuring rice viscosity based on material characteristics was investigated in this paper. Then, an automatic system for measuring viscosity of cooked rice was developed and quantitative characteristics used to express rice viscosity by the average slope of unloading distortion curve were established. Results showed that the system could distinguish the viscosity difference between rice varieties and detect the change of rice viscosity with cooking time for the same variety. Therefore, this system can meet the requirements in assessing and evaluating rice viscosity, which is an important factor for cooked rice quality, and provide a convenient and accurate way for rice quality measurement. Number of references:15 Main heading:Viscosity Controlled terms:Automatic testing - Unloading - Viscometers - Viscosity measurement Uncontrolled terms:Automatic measurements - Automatic systems - Cooked rice - Cooking time - Existing method - Material characteristics - Quality measurements - Quantitative characteristics - Taste control Classification code:422 Strength of Building Materials; Test Equipment and Methods - 423 Non Mechanical Properties and Tests of Building Materials - 631.1 Fluid Flow, General - 674.1 Small Marine Craft - 943.3 Special Purpose Instruments DOI:10.3969/j.issn.1002-6819.2010.12.060 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110313592561 Title:An efficient algorithm of constructing data cube in RFID system Authors:Hu, Kongfa (1); Ding, Youwei (1); Chen, Ling (1) Author affiliation:(1) Department of Computer Science and Engineering, Yangzhou University, Yangzhou 225009, China Corresponding author:Hu, K.(kfhu@yzu.edu.cn) Source title:Journal of Computational Information Systems Abbreviated source title:J. Comput. Inf. Syst. Volume:6 Issue:12
Issue date:December 2010 Publication year:2010 Pages:4143-4150 Language:English ISSN:15539105 Document type:Journal article (JA) Publisher:Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States Abstract:Since RFID technology has being used in more and more applications, a great number of data records with simple format are generated. How to storage and management of RFID data has become an important issue in decision making. Different to normal data records, RFID data contains potential moving paths of items, and it has the characteristics of massive, multi-dimensional and multi-hierarchical, so we must apply new methods in RFID data management. Considering the various distribution of RFID system, we propose a new cubing method to manage RFID data, whose efficiency depends only on the size of path database. In this method, we pre-compute the path database using the concepts of the minimal interest layer and the observation layer, and then choose some suitable cuboids to materialize, which costs less time to respond the path queries from different users in RFID system. Experimental results show our method is effective and efficient. © 2010 Binary Information Press. Number of references:10 Main heading:Decision making Controlled terms:Algorithms - Geometry - Query languages Uncontrolled terms:Data cube - Data management - Data records - Efficient algorithm - Moving path - Multi-hierarchical - Number of datum - Path queries - RFID - RFID systems - RFID Technology Classification code:723.3 Database Systems - 912.2 Management - 921 Mathematics Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110113554478 Title:Memory and human nature and our developments: Hypothesis from narrow dimensions and generalized dimensions Authors:Yu, K. (1); Luo, J.W. (1) Author affiliation:(1) School of Foreign Language, Yangzhou University, Yangzhou 225009, China Corresponding author:Yu, K.(andrews_yu_27@hotmail.com) Source title:Applied Mechanics and Materials Abbreviated source title:Appl. Mech. Mater. Volume:33 Monograph title:Advances in Functional Manufacturing Technologies Issue date:2010 Publication year:2010 Pages:469-473 Language:English ISSN:16609336 ISBN-13:9780878492367 Document type:Conference article (CA) Conference name:2nd International Conference on Functional Manufacturing Technologies, ICFMT 2010 Conference date:August 6, 2010 - August 9, 2010 Conference location:Harbin, China Conference code:83186 Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Memory in the nature of primitive features and basic functions, which plays an important role in promoting all the developments from ancient times to nowadays, is the most fundamental form of human nature. This paper will, from both narrow dimensions and generalized dimensions hypothesize and analyze the connection between memory and human nature or our developments; the original feature and function of memory, thereby, will be revealed. © (2010) Trans Tech Publications. Number of references:9 Main heading:Manufacture Uncontrolled terms:Compare - Development - Generalized dimension - Memory - Narrow dimensions - Nature Classification code:537.1 Heat Treatment Processes DOI:10.4028/www.scientific.net/AMM.33.469 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20105113512340 Title:Effect of quenching on properties of bismuth layered-structure ferroelectrics Authors:Zhu, Jun (1); Wang, Wei (1); Mao, Xiangyu (1); Chen, Haitao (1); Chen, Xiaobing (1) Author affiliation:(1) School of Physics Science and Technology, Yangzhou University, Yangzhou 225002, Jiangsu, China Corresponding author:Zhu, J.(zhujun@yzu.edu.cn) Source title:Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society Abbreviated source title:Kuei Suan Jen Hsueh Pao Volume:38 Issue:12
Issue date:December 2010 Publication year:2010 Pages:2275-2278 Language:Chinese ISSN:04545648 CODEN:KSYHA5 Document type:Journal article (JA) Publisher:Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China Abstract:Effect of quenching on microstructure, ferroelectric and dielectric properties of bismuth layer-structured ferroelectrics SrBi Number of references:21 Main heading:Defect structures Controlled terms:Bismuth - Curie temperature - Dielectric losses - Ferroelectric materials - Ferroelectricity - Oxygen - Oxygen vacancies - Perovskite - Polarization - Quenching Uncontrolled terms:Bismuth layer-structured ferroelectrics - Coercive field - Dielectric measurements - Domain boundary - Domain pinning - Ferroelectric domains - Ferroelectric property - High temperature - Layered-perovskite structure - Quench - Relative dielectric constant - Remanant polarization Classification code:804.2 Inorganic Compounds - 804 Chemical Products Generally - 708.1 Dielectric Materials - 701.2 Magnetism: Basic Concepts and Phenomena - 933.1 Crystalline Solids - 701.1 Electricity: Basic Concepts and Phenomena - 537.1 Heat Treatment Processes - 482.2 Minerals - 482 Mineralogy - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110313592554 Title:Avoiding the searching bias in solving deceptive problems of particle swarm optimization algorithm Authors:Chen, Ling (1); Wang, Shu (1); Liu, Wei (3) Author affiliation:(1) Department of Computer Science, Yangzhou University, Yangzhou 225009, China; (2) State Key Lab of Novel Software Technology, Nanjing University, Nanjing 210093, China; (3) Department of Computer Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Corresponding author:Chen, L.(lchen@yzcn.net) Source title:Journal of Computational Information Systems Abbreviated source title:J. Comput. Inf. Syst. Volume:6 Issue:12
Issue date:December 2010 Publication year:2010 Pages:4075-4082 Language:English ISSN:15539105 Document type:Journal article (JA) Publisher:Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States Abstract:One of the problems in applying particle swarm optimization (PSO) is that the search process is sometimes biased by algorithm features such as the solution construction process. Due to such searching bias, PSO cannot converge to the optimal solution for some problems which are called deceptive problems. Taking the n-bit trap problem as an instance, we theoretically prove that PSO can not converge to the global optimal solution of such problem under certain conditions. In addition, we empirically verified the correctness of our theoretical conclusions. We also present an algorithm BS-sPSO for avoiding the searching bias. The algorithm BS-sPSO can change the particles' search direction and expand their search area at the appropriate time. Our experimental results on the n-bit trap problem show the effectiveness of our bias avoiding algorithm. © 2010 Binary Information Press. Number of references:14 Main heading:Particle swarm optimization (PSO) Controlled terms:Algorithms - Optimal systems - Problem solving Uncontrolled terms:Construction process - Deceptive problem - Global optimal solutions - N-bit Trap Problem - Optimal solutions - Particle Swarm Optimization Algorithm - Search area - Search direction - Search process - Searching Bias - Trap problem Classification code:723 Computer Software, Data Handling and Applications - 921 Mathematics - 961 Systems Science Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110913707655 Title:The ideal geometry parameters of arch cylindrical gear and its process method Authors:Song, Ai-Ping (1); Wu, Wei-Wei (1); Gao, Shang (1); Gao, Wen-Jie (1) Author affiliation:(1) College of Mechanical Engineering, Yangzhou University, Yangzhou 225009, China Corresponding author:Song, A.-P.(apsong@sina.com) Source title:Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University Abbreviated source title:Shanghai Jiaotong Daxue Xuebao Volume:44 Issue:12
Issue date:December 2010 Publication year:2010 Pages:1735-1740 Language:Chinese ISSN:10062467 CODEN:SCTPDH Document type:Journal article (JA) Publisher:Shanghai Jiao Tong University, 2200 Xietu Rd, Shanghai, 200032, China Abstract:This paper put forward ideal geometry parameters of arch cylindrical gear based on analyzing the geometry parameters and process methods of similar arch cylindrical gears. It analyzed the mesh characteristics of two tooth surfaces of gear pair. By graphical representation of the tooth-surface equation and the mesh line expression, it demonstrated the mesh state of two teeth surfaces with graph, which can verify the feasibility of the gear's geometry parameters. It can be concluded that the radius of concave surface and convex surface of the tooth must be equal in the gear, the tooth thickness is equal to the slot width on the different radial section of the gear teeth and the pressure angle at the reference circle must be equal. Based on it, the processing method of the involute arch cylindrical gear and the parallel rod gear processing device, were put forward. Number of references:10 Main heading:Gear teeth Controlled terms:Arches - Geometry - Processing Uncontrolled terms:Circumferential modulus - Concave surface - Convex surfaces - Cylindrical gear - Geometry parameter - Graphical representations - Ideal geometry - Mesh characteristic - Pressure angles - Process methods - Processing device - Processing method - Slot width - Surface equation - Teeth surface - Tooth surface - Tooth thickness Classification code:408.2 Structural Members and Shapes - 601.2 Machine Components - 913.4 Manufacturing - 921 Mathematics Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110213569048 Title:Performance prediction and parameter conversion of variable speed mixed-flow pumping system Authors:Zhu, Honggeng (1); Zhang, Rentian (1); Cheng, Jilin (1); Yao, Linbi (2); Zhang, Bin (2) Author affiliation:(1) College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China; (2) Jiangsu Surveying and Design Institute of Water Resources Co., Ltd., Yangzhou 225009, China Corresponding author:Zhu, H.(hgzhu@163.com) Source title:Shuili Fadian Xuebao/Journal of Hydroelectric Engineering Abbreviated source title:Shuili Fadian Xuebao Volume:29 Issue:6
Issue date:December 2010 Publication year:2010 Pages:205-210 Language:Chinese ISSN:10031243 Document type:Journal article (JA) Publisher:Tsinghua University Press, Beijing, 100084, China Abstract:The numerical simulation of internal flow and performance prediction of a variable speed mixed-flow pumping system are conducted by means of computational fluid dynamics, and the simulated pump performance parameters are compared with those converted by the similitude. The results show that variable speed operation of the pump affects the peak efficiency, and its maximum relative error of the conversion method under five speeds is 0.973%. When the pump runs off the peak efficiency, the error of conversion method decreases in the large flow-rate region, while increases in the small flow-rate region, with a maximum error of 3.043%. Under different pump speeds, the hydraulic characteristics of the outlet passage are not completely similar and the head losses at a given flow rate is not constant as a result of the outlet flow adjustment. These behaviors are the same as that of the mechanical, volumetric and hydraulic efficiencies of the pump. This is a possible explanation for the errors in the converted performance parameters by the similitude. © Copyright. Number of references:12 Main heading:Pumps Controlled terms:Computational fluid dynamics - Computer simulation - Forecasting - Hydraulic machinery - Hydraulics - Mathematical models - Pumping plants - Speed Uncontrolled terms:Hydraueic machinery - Numerical simulation - Parameter conversion - Performance prediction - Similarity law - Variable speed operations Classification code:931.1 Mechanics - 921 Mathematics - 723.5 Computer Applications - 632.2 Hydraulic Equipment and Machinery - 632.1 Hydraulics - 618.2 Pumps - 446 Waterworks Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110413618062 Title:Utility based optimal task scheduling problem in a multi-agent system Authors:Zhang, Xiaowei (1); Li, Bin (1); Zhu, Junwu (1); Wu, Jun (1) Author affiliation:(1) School of Information Engineering, Yangzhou University, Yangzhou, China Corresponding author:Zhang, X.(xwzhang@yzu.edu.cn) Yüklə 2,34 Mb. Dostları ilə paylaş:
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