Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Classification code:408 Structural Design - 537.1 Heat Treatment Processes - 744 Lasers - 921.6 Numerical Methods DOI:10.4028/www.scientific.net/AMR.308-310.1619 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20114014386593 Title:An improved control strategy for Doubly-fed Wind power Generation based on inverse system theory Authors:Jiyong, Zhang (1); Liu, Guohai (2) Author affiliation:(1) Electrical Engineering Institute, Jiangsu University, Zhenjiang Jiangsu, China; (2) Energy Amd Power Engineering Institute, Yangzhou University, Yangzhou Jiangsu, China Corresponding author:Jiyong, Z.(zjy@yzu.edu.cn) Source title:ICEOE 2011 - 2011 International Conference on Electronics and Optoelectronics, Proceedings Abbreviated source title:ICEOE - Int. Conf. Electron. Optoelectron., Proc. Volume:4 Monograph title:ICEOE 2011 - 2011 International Conference on Electronics and Optoelectronics, Proceedings Issue date:2011 Publication year:2011 Pages:V4182-V4185 Article number:6013457 Language:English ISBN-13:9781612842738 Document type:Conference article (CA) Conference name:2011 International Conference on Electronics and Optoelectronics, ICEOE 2011 Conference date:July 29, 2011 - July 31, 2011 Conference location:Dalian, China Conference code:86661 Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:Vector control method is the common way in traditional Double-fed Wind Generation, but it is more dependent on motor parameters, once the operational situation changes, the effect of the system control will be affected. This paper proposes a control method based on inverse system, through the inverse system theory, the state equation of doubly-fed induction motor (DFIG) and power converter, to construct the structure of the DFIG wind power generation inverse control system. Finally, the corresponding wind power generation closed-loop control system is established. When the system operates in variable speed constant frequency (VSCF) and the phase voltage drops, the simulation results show that the control system can keep the DC link voltage steady, maintain unity power factor, achieve the decoupling of the active and reactive power. It proves that this control method used in VSCF wind power generation is feasible. © 2011 IEEE. Number of references:12 Main heading:DC power transmission Controlled terms:Control theory - Electric power factor - Electric power generation - Equations of state - Induction motors - Optoelectronic devices - System theory - Wind power Uncontrolled terms:Control methods - Control strategies - DC-link voltages - DFIG - Double fed - Doubly-fed - Inverse control systems - Inverse system - Inverse system theory - Motor parameters - Phase voltage - State equations - System control - Unity power factor - Variable speed constant frequency - Vector control - Vector control method - VSCF - Wind generation Classification code:961 Systems Science - 921 Mathematics - 731.1 Control Systems - 717.2 Optical Communication Equipment - 706.1.1 Electric Power Transmission - 706 Electric Transmission and Distribution - 705.3.1 AC Motors - 615.8 Wind Power (Before 1993, use code 611 ) - 615 Thermoelectric, Magnetohydrodynamic and Other Power Generators DOI:10.1109/ICEOE.2011.6013457 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20114014389144 Title:Nonlinear finite elements analysis on structure of pumping station in the joint hub of sluice and pumping station Authors:Cao, Qiulin (1); Meng, Yikai (1); Chen, Lei (1) Author affiliation:(1) Hydraulic Science and Engineering College, Yangzhou University, Yangzhou, Jiangsu, China Corresponding author:Cao, Q.(cqlshy@163.com) Source title:Applied Mechanics and Materials Abbreviated source title:Appl. Mech. Mater. Volume:90-93 Monograph title:Advances in Civil Engineering Issue date:2011 Publication year:2011 Pages:2546-2552 Language:English ISSN:16609336 ISBN-13:9783037852422 Document type:Conference article (CA) Conference name:2011 International Conference on Civil Engineering and Transportation, ICCET 2011 Conference date:October 14, 2011 - October 16, 2011 Conference location:Jinan, China Conference code:86692 Sponsor:Shandong Jianzhu University, School of Civil Engineering; Shandong University, School of Civil Engineering; Shandong Univ. Sci. Technol. Sch. Civ. Eng. Archit.; Yantai University, School of Civil Engineering; Shandong Prov. Key Lab Appraisal Retrofitting Build. Struct. Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Aiming at the pivotal project is decorated jointly by sluice and pumping station, thus the relationship between each other is more complex. By using 3-D finite element software ABAQUS, the structure of pumping station was studied. Two methods were used when modeling and analyzing. For the method 1, only the model of pumping station was built and the check sluice was taken as a side load when calculating. For the method 2, the whole model of the joint hub of sluice and pumping station was built. The displacements and strength of the structure of pumping station can meet the requirements according to the calculated results. There is little difference between the calculated results of the two kinds of methods by comparison, but for the method 1, the calculations about displacements are all unsafe and it should be given enough attention, thereby the reliability and security of the design of similar projects will be guaranteed. © (2011) Trans Tech Publications. Number of references:10 Main heading:Pumping plants Controlled terms:ABAQUS - Civil engineering - Computer software - Finite element method - Professional aspects - Pumps Uncontrolled terms:Finite Element - Finite element software ABAQUS - Non-linear finite elements - Pumping station - Pumping stations - Side loads - The joint hub of sluice and pumping station Classification code:921 Mathematics - 901.1 Engineering Professional Aspects - 723 Computer Software, Data Handling and Applications - 921.6 Numerical Methods - 618.2 Pumps - 421 Strength of Building Materials; Mechanical Properties - 409 Civil Engineering, General - 446 Waterworks DOI:10.4028/www.scientific.net/AMM.90-93.2546 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20114014386667 Title:Predicting grain starch content of winter wheat through remote sensing method based on HJ-1A/1B images Authors:Tan, Changwei (1); Wang, Junchan (1); Guo, Wenshan (1); Wang, Jihua (2); Huang, Wenjiang (2) Author affiliation:(1) Jiangsu Province Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, China; (2) National Engineering Research Center for Information Technology in Agriculture, Beijing, China Corresponding author:Guo, W.(guows@yzu.edu.cn) Source title:2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011 - Proceedings Abbreviated source title:Int. Conf. Artif. Intell., Manage. Sci. Electron. Commer., AIMSEC - Proc. Monograph title:2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011 - Proceedings Issue date:2011 Publication year:2011 Pages:6303-6306 Article number:6009646 Language:Chinese ISBN-13:9781457705366 Document type:Conference article (CA) Conference name:2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011 Conference date:August 8, 2011 - August 10, 2011 Conference location:Zhengzhou, China Conference code:86666 Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States Abstract:The purpose of this study is to further improve the accuracy of predicting winter wheat grain quality with remote sensing, and to enhance the prediction mechanism. In order to predict grain starch content (GSC) in winter wheat using HJ-1A/1B images, The experiment was carried out in Jiangsu regions during 2010 winter wheat growth season. Based on HJ-1A/1B image, synchronous or quasi-simultaneous ground observations of leaf nitrogen content(LNC) and grain quality parameters of winter wheat under different periods. Firstly, this study analyzed the relationships between GSC and LNC, and between LNC and satellite remote sensing variables. Secondly, based on remote sensing variable and LNC, the quantitative relationship models were established to predict GSC, and then evaluated with independent samples. Finally, the indirect model of predicting GSC based on remote sensing variable and LNC was compared to the direct model based on only structure insensitive pigment index(SIPI). The results showed that: at the booting stage, winter wheat GSC had a significantly positively correlation with Band(B1), Band4(B4), SIPI and plant senescence reflectance index(PSRI), and then it also had a significantly association with nitrogenous reflection index (NRI). At last, a direct model for predicting GSC was established with only SIPI. At the same time, LNC in this period also showed a higher correlation with GSC. Based on the high relationship between LNC and SIPI, an indirect model of predicting GSC also was established. The indirect and direct models were evaluated with independent samples by the determination coefficient(R2) with 0.662 and 0.533, the root mean square error(RMSE) with 5.72% and 6.34%, respectively. The indirect model based on SIPI and LNC performed better to predict wheat GSC than the direct model based on only SIPI, and obtained the higher accuracy by 9.7% than the direct model. It is concluded that the research can provide an effective way to improve the accuracy of predicting wheat quality based on aerospace remote sensing, and contribute to large-scale application and promotion of the research results. © 2011 IEEE. Number of references:15 Main heading:Grain (agricultural product) Controlled terms:Artificial intelligence - Crops - Electronic commerce - Forecasting - Grain growth - Management science - Mathematical models - Mean square error - Remote sensing - Starch Uncontrolled terms:HJ-1A/1B image - Leaf nitrogen content - Prediction model - Starch contents - Winter wheat Classification code:921 Mathematics - 912.2 Management - 821.4 Agricultural Products - 933.1.2 Crystal Growth - 804.1 Organic Compounds - 723.5 Computer Applications - 723.4 Artificial Intelligence - 731.1 Control Systems DOI:10.1109/AIMSEC.2011.6009646 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20114014385254 Title:A method on obtaining depth information and parallel adjusting mechanism design based on lens imaging principle Authors:Zhao, Xin (1); Zhu, Xinglong (1); Yin, Nan (1); Gao, Shang (1) Author affiliation:(1) School of Mechanical Engineering, University of Yangzhou, Yangzhou, Jiangsu, 225127, China Corresponding author:Zhao, X.(zhaoxin051001138@126.com) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:308-310 Monograph title:Advanced Design Technology Issue date:2011 Publication year:2011 Pages:2062-2067 Language:English ISSN:10226680 ISBN-13:9783037852132 Document type:Conference article (CA) Conference name:2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 Conference date:September 16, 2011 - September 18, 2011 Conference location:Guangzhou, China Conference code:86611 Sponsor:Guangdong University of Technology; Huazhong University of Science and Technology; Hong Kong University of Science and Technology; Hong Kong Polytechnic University; University of Nottingham Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Owing to the deficiency of pinhole imaging model, a method to measure the depth information of the object based on lens imaging principle is proposed in this paper. By drawing on the two states of the measured object before and after changing position, this method manages to adjust the position of lens until the image become clearest, record the related information of position variation in order to obtain the depth information of the object. Meanwhile, whether the lens central plane is parallel to the CCD plane or not is also discussed, which is the reason why the image is fuzzy. A new kind of two degrees of freedom parallel adjusting mechanism was designed to solve the two problems above, which can achieve two degrees of freedom including independent moving and independent rotating. The clearest image can be obtained by adjusting the object distance and the image distance without changing the focal length of the camera. Besides, the mechanism can also be used to detect whether the installation position of lens central plane matches the CCD plane or not. © (2011) Trans Tech Publications. Number of references:8 Main heading:Manufacture Controlled terms:Machine design - Mechanics - Mechanisms - Rotation Uncontrolled terms:Adjusting mechanism - Depth information - Focal lengths - Image distance - Imaging principle - Independent moving - Independent rotating - Installation position - Object based - Object distance - Parallel mechanisms - Pinhole imaging - Two degrees of freedom - Two-state Classification code:537.1 Heat Treatment Processes - 601 Mechanical Design - 601.3 Mechanisms - 931.1 Mechanics DOI:10.4028/www.scientific.net/AMR.308-310.2062 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112514070899 Title:Existence results of semilinear differential equations with nonlocal initial conditions in Banach spaces Authors:Zhu, Lanping (1); Li, Gang (1) Author affiliation:(1) School of Mathematics, Yangzhou University, Yangzhou 225002, China Corresponding author:Zhu, L.(zlpmath@yahoo.com.cn) Source title:Nonlinear Analysis, Theory, Methods and Applications Abbreviated source title:Nonlinear Anal Theory Methods Appl Volume:74 Issue:15
Issue date:October 2011 Publication year:2011 Pages:5133-5140 Language:English ISSN:0362546X CODEN:NOANDD Document type:Journal article (JA) Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom Abstract:In this paper, we establish the existence results for semilinear differential systems with nonlocal initial conditions in Banach spaces. The approaches used are fixed point theorems combined with convex-power condensing operators. The first result obtained will be applied to a class of semilinear parabolic equations. © 2011 Elsevier Ltd. All rights reserved. Number of references:26 Main heading:Mathematical operators Controlled terms:Banach spaces - Partial differential equations - Topology Uncontrolled terms:Convex-power condensing operators - Differential systems - Existence results - Fixed point theorems - Measure of noncompactness - Mild solutions - Nonlocal initial conditions - Semi-linear differential equations - Semilinear - Semilinear parabolic equation Classification code:921 Mathematics DOI:10.1016/j.na.2011.05.007 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20112314033015 Title:Global minimizers of coexistence for rotating N-component BoseEinstein condensates Authors:Zhang, Shan (1); Liu, Zuhan (1); Lin, Zhigui (1) Author affiliation:(1) School of Mathematical Science, Yangzhou University, Yangzhou 225002, China; (2) School of Mathematical Science, Xuzhou Normal University, Xuzhou, 221116, China Corresponding author:Zhang, S.(shanzhang86@163.com) Source title:Nonlinear Analysis: Real World Applications Abbreviated source title:Nonlinear Anal. Real World Appl. Volume:12 Issue:5
Issue date:October 2011 Publication year:2011 Pages:2567-2578 Language:English ISSN:14681218 Document type:Journal article (JA) Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom Abstract:This paper is concerned with the spatial behavior of the interaction components of rotating N-component BoseEinstein condensates. The coexistence of minimal energy solutions is discussed and a mechanism to ensure coexistence is given. Moreover, if the condensation domain has a suitable shape, we prove that, as the interspecies interaction tends to infinity, the solution converges, along with suitable sequence, to a non-trivial spatially segregated state satisfying a non-coupled variational problem. © 2011 Elsevier Ltd. All rights reserved. Number of references:29 Main heading:Rotation Uncontrolled terms:Bose-Einstein condensates - Coexistence - Global minimizers - Interspecies interactions - Minimal energy - Non-trivial - Segregated state - Spatial behaviors - Spatial segregation - Variational problems Classification code:601.1 Mechanical Devices DOI:10.1016/j.nonrwa.2011.03.006 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20113814357305 Title:Self-energy of elliptical dislocation loops in anisotropic crystals and its application for defect-free core/shell nanowires Authors:Chu, H.J. (1); Wang, J. (1); Zhou, C.Z. (2); Beyerlein, I.J. (2) Author affiliation:(1) MST Division, Los Alamos National Laboratory, Los Alamos, NM 87545, United States; (2) Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, United States; (3) Research Group of Mechanics, Yanzhou University, Yangzhou 225009, China Corresponding author:Wang, J.(wangj6@lanl.gov) Source title:Acta Materialia Abbreviated source title:Acta Mater Volume:59 Issue:18
Issue date:October 2011 Publication year:2011 Pages:7114-7124 Language:English ISSN:13596454 Document type:Journal article (JA) Publisher:Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom Abstract:In this work we investigate the self-energy of elliptical dislocation loops in anisotropic crystals and determine the functional dependencies on loop circumference, shape, and dislocation core radius. Systematic numerical calculations using the anisotropic point force Green's function method are carried out with the goal of developing an analytical expression for the self-energy associated with these loops. The resulting formula is shown to accurately predict the self-energies for elliptical loops in anisotropic crystals, as well as the self-energies for simple loop configurations in isotropic crystals, for which analytical expressions exist. We apply this expression to predict the critical shell thickness corresponding to defect-free core/shell nanowires (NW) and further for the first time consider the effect of image energy due to the finite size of NW in anisotropic media using the boundary element method. Consequently, self-energy in NWs is corrected by an energy factor. Moreover, we discuss the dependence of the critical shell thickness on growth direction, with ⟨1 1 0⟩ NW having the largest, ⟨1 1 1⟩ NW the next largest, and ⟨1 1 2⟩ NW the finest. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. Number of references:53 Main heading:Anisotropy Controlled terms:Anisotropic media - Boundary element method - Crystals - Defects - Dislocations (crystals) - Green's function - Nanowires - Numerical methods Uncontrolled terms:Analytical expressions - Anisotropic - Anisotropic crystals - Core/shell - Defect-free - Dislocation core - Dislocation loop - Energy factors - Finite size - Functional dependency - Green's function methods - Growth directions - Image energy - Numerical calculation - Point force - Self energy - Shell thickness - Simple loop Classification code:761 Nanotechnology - 921.6 Numerical Methods - 931.2 Physical Properties of Gases, Liquids and Solids - 933 Solid State Physics - 951 Materials Science DOI:10.1016/j.actamat.2011.07.066 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20113214219734 Title:Hydrothermal synthesis of SnO Authors:Zhang, Yong Cai (1); Du, Zhen Ni (1); Zhang, Ming (1) Author affiliation:(1) Key Laboratory of Environmental Material and Environmental Engineering of Jiangsu Province, College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China Corresponding author:Zhang, Y.C.(zhangyc@yzu.edu.cn) Source title:Materials Letters Abbreviated source title:Mater Lett Volume:65 Issue:19-20 Issue date:October 2011 Publication year:2011 Pages:2891-2894 Language:English ISSN:0167577X CODEN:MLETDJ Document type:Journal article (JA) Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands Abstract:SnO Number of references:10 Main heading:Nanocomposites Controlled terms:Acetic acid - Agglomeration - Azo dyes - Heterojunctions - Hydrothermal synthesis - Nanoparticles - Photocatalysis - Transmission electron microscopy - X ray diffraction Uncontrolled terms:Distilled water - Functional - Heterojunction structures - Hydrothermal reaction - Hydrothermally synthesized - Interfacial electron transfer - Methyl Orange - Nanoplates - Photocatalytic activities - Self-agglomeration - Structural - Thioacetamide - Two-component - UV-vis diffuse reflectance spectra - Visible light Yüklə 2,34 Mb. Dostları ilə paylaş:
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