Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Number of references:10 Main heading:Lubrication Controlled terms:Mechatronics - Rollers (machine components) Uncontrolled terms:Antifriction - Antifriction effect - Contact lines - Contact Stress - Cylindrical rollers - Deep holes - Oil films Classification code:601.2 Machine Components - 607.2 Lubrication - 608 Mechanical Engineering, General DOI:10.4028/www.scientific.net/AMM.43.391 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110313586407 Title:ItemListFCI: An algorithm for mining closed frequent itemsets based on bit table Authors:Tang, Keming (1); Dai, Caiyan (2); Chen, Ling (2) Author affiliation:(1) College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, China; (2) Department of Computer Science, Yangzhou University, China; (3) College of Information Science and Technology, Yancheng Teachers University, China Corresponding author:Tang, K.(tkmchina@126.com) Source title:Applied Mechanics and Materials Abbreviated source title:Appl. Mech. Mater. Volume:44-47 Monograph title:Frontiers of Manufacturing and Design Science Issue date:2011 Publication year:2011 Pages:3159-3163 Language:English ISSN:16609336 ISBN-13:9783037850046 Document type:Conference article (CA) Conference name:2010 International Conference on Frontiers of Manufacturing and Design Science, ICFMD2010 Conference date:December 11, 2010 - December 12, 2010 Conference location:Chongqing, China Conference code:83436 Sponsor:Control Engineering and Information Science Research Association; Int. Front. Sci. Technol. Res. Assoc.; Trans Tech Publications; Chongqing Xueya Conferences Catering Co.,Ltd; Chongqing University of Technology Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Mining closed frequent itemsets in data streams is an important task in stream data mining. Most of the traditional algorithms for mining closed frequent itemsets are Apriori-based which find the frequent itemsets from large amount of candidates, and needs a great deal of time and space. In this paper, an algorithm ItemListFCI for mining closed frequent itemsets in data stream is proposed. The algorithm is based on the sliding window model, and uses a ItemList where the transactions and itemsets are recorded by the column and row vectors respectively. The algorithm first builds the ItemList for the first sliding window. Frequent closed itemsets can be detected by pair-test operations on the binary numbers in the Table. After building the first ItemList, the algorithm updates the ItemList for each sliding window. The frequent closed itemsets in the sliding window can be identified from the ItemList. Algorithms are also proposed to modify ItemList when adding and deleting a transaction. The experimental results on synthetic and real data sets indicate that the proposed algorithm needs less CPU time and memory than other similar methods. © (2011) Trans Tech Publications. Number of references:10 Main heading:Data mining Controlled terms:Algorithms - Data communication systems - Manufacture Uncontrolled terms:Apriori - Binary number - Closed frequent itemsets - CPU time - Data stream - Frequent closed itemsets - Frequent Itemsets - Item sets - Itemset - Sliding Window - Stream data mining - Synthetic and real data - Test operations - Time and space Classification code:537.1 Heat Treatment Processes - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 723 Computer Software, Data Handling and Applications - 921 Mathematics DOI:10.4028/www.scientific.net/AMM.44-47.3159 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110313587187 Title:A Hölling's type II prey-predator model with stage structure and nonlocal delay Authors:Zhang, Lai (1); Lin, Zhigui (1) Author affiliation:(1) School of Mathematical Science, Yangzhou University, Yangzhou 225002, China Corresponding author:Lin, Z.(zglin68@hotmail.com) Source title:Applied Mathematics and Computation Abbreviated source title:Appl. Math. Comput. Volume:217 Issue:10
Issue date:January 15, 2011 Publication year:2011 Pages:5000-5010 Language:English ISSN:00963003 CODEN:AMHCBQ Document type:Journal article (JA) Publisher:Elsevier Inc., 360 Park Avenue South, New York, NY 10010, United States Abstract:In this paper, a prey-predator model with reaction-diffusion is investigated under homogenous Neumann boundary condition. By taking food ingestion and species' moving into account, model is further coupled with Ho¨lling's type II function response and nonlocal delay. Sufficient conditions for the global stability of three equilibria, i.e. positive, semi-trivial and trivial steady states are mainly derived by Lyapunov functional, respectively. Results show that intra-specific competition benefits the coexistence of prey and predator. Numerical simulations are performed to illustrate the analytical results. © 2010 Elsevier Inc. All rights reserved. Number of references:16 Main heading:Holmium Controlled terms:Boundary conditions - Diffusion Uncontrolled terms:Analytical results - Global stability - Intraspecific competition - Lyapunov functionals - Neumann boundary condition - Nonlocal delay - Numerical simulation - Prey-predator models - Reaction diffusion - Stage structure - Steady state - Sufficient conditions - Type II Classification code:547.2 Rare Earth Metals - 921 Mathematics - 931.1 Mechanics DOI:10.1016/j.amc.2010.11.054 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20110213565765 Title:In air template-free synthesis of In Authors:Zhang, Yong Cai (2); Li, Shi Yin (1); Du, Zhen Ni (2) Author affiliation:(1) School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210046, China; (2) College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China Corresponding author:Zhang, Y. C.(zhangyc@yzu.edu.cn) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:152-153 Monograph title:New Materials and Advanced Materials Issue date:2011 Publication year:2011 Pages:63-66 Language:English ISSN:10226680 ISBN-13:9780878492039 Document type:Conference article (CA) Conference name:2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010 Conference date:November 6, 2010 - November 8, 2010 Conference location:Shenzhen, China Conference code:83174 Sponsor:University of Wollongong (UOW); Northeastern University (NU); University of Science and Technology Beijing (USTB); Hebei Polytechnic University (HPU); Hong Kong Industrial Technology Research Centre (ITRC) Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:A novel template-free method, which was based on heating the mixture of InCl Number of references:7 Main heading:Synthesis (chemical) Controlled terms:Ethanol - Field emission - Indium - Nanostructures - Thioureas - Ultraviolet spectroscopy - Urea - Water treatment - X ray diffraction Uncontrolled terms:Chemical synthesis - Cubic phase - Distilled water - Field emission scanning electronic microscopy - Hierarchical Nanostructures - Nanoflakes - Room temperature - Semiconductors - Template free method - Template-free - Urchin-like - UV-VIS absorption spectra - Washing treatment Classification code:933.1.1 Crystal Lattice - 933 Solid State Physics - 932 High Energy Physics; Nuclear Physics; Plasma Physics - 804.1 Organic Compounds - 802.2 Chemical Reactions - 801 Chemistry - 761 Nanotechnology - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 445.1 Water Treatment Techniques DOI:10.4028/www.scientific.net/AMR.152-153.63 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110113546407 Title:Comment on Lee J-s et al.'s identity-based designated verifer proxy signature scheme and its improvement Authors:Liao, Da-Jian (1); Tang, Yuan-Sheng (2) Author affiliation:(1) College of Science, Huaihai Institue of Technology, Lianyungang 222005, China; (2) Sch of Math. Sci., Yangzhou Univ., Yangzhou 225002, China Corresponding author:Liao, D.-J.(1006268675@qq.com) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:143-144 Monograph title:Smart Materials and Intelligent Systems Issue date:2011 Publication year:2011 Pages:753-757 Language:English ISSN:10226680 ISBN-13:9780878492237 Document type:Conference article (CA) Conference name:International Conference on Smart Materials and Intelligent Systems 2010, SMIS 2010 Conference date:December 17, 2010 - December 20, 2010 Conference location:Chongqing, China Conference code:83171 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 Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:In a designated verifier proxy signature scheme, one can delegate his or her signing capability to another user in such a way that the latter can sign messages on behalf of the former, but the validity of the resulting signatures can only be verified by the designated verifier. Recently, Lee J-s et al. proposed a new ID-Based designated verifier proxy signature scheme. They didn't analysis the security of their scheme. We found out that anyone can generate a valid signature on any message m and mw he choose. To overcome this flaw in Lee J-s et al.'s scheme, we formalized the notion of designated verifier proxy signature scheme, provide a new ID-Based designated verifier proxy signature scheme. We also analyzed the proposed scheme. © (2011) Trans Tech Publications. Number of references:7 Main heading:Electronic document identification systems Controlled terms:Authentication - Cryptography - Intelligent materials - Intelligent systems - Network security Uncontrolled terms:Designated verifiers - Designated-verifier proxy signatures - ID-based - Identity-based - Proxy signature scheme - Proxy signatures - Sign messages - Strong designated verifer signatures Classification code:415 Metals, Plastics, Wood and Other Structural Materials - 723 Computer Software, Data Handling and Applications DOI:10.4028/www.scientific.net/AMR.143-144.753 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20111413898041 Title:Comparison of bulb tubular pump unit's support forms Authors:Qiu, Baoyun (1); Pei, Bei (1); Shen, Jian (1); Feng, Xusong (2); Feng, Xiaoli (1) Author affiliation:(1) School of Energy and Power Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China; (2) Jiangsu Water Source Co. Ltd. of S-to-N Water Transfer Project, Nanjing, Jiangsu 210029, China Corresponding author:Qiu, B.(yzdxqby@sohu.com) Source title:Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering Abbreviated source title:Paiguan Jixie Xuebao. Volume:29 Issue:1
Issue date:January 2011 Publication year:2011 Pages:61-66 Language:Chinese ISSN:16748530 CODEN:PAJIE2 Document type:Journal article (JA) Publisher:Editorial Department of Drainage and, 30 Mengxiyuan Lane, Zhenjiang, 212003, China Abstract:In order to optimize supporting structures of bulb tubular pump units and improve the properties, the supports of bulb tubular pump units were divided into 3 hierarchies, i.e. the bearing block support, the bulb support and the pump body support. The support forms of 3 typical bulb tubular pump units were investigated. The shaft deformations and fatigue strength safety factors were calculated through force analysis. Several typical support forms were compared in pump unit reliability, installation, maintainability and overall structure, and the pump system hydraulic performances. The design principles and methods of bulb tubular pump unit supports were put forward in bearing number and their arrangement and installation, the bulb supports and the pump body supports. The results show that supporting forms of bulb tubular pump units affect reliability, stability, installation and maintainability of the pump units and the pump system hydraulic performances. The flexivities of motor rotor and pump impeller reach 0.19~0.39 mm and 0.22~0.62 mm, respectively. The oil film thicknesses of journal bearings and rolling bearings are 0.41~0.53 mm and 0.12~0.17 mm, respectively. When determining the installation height of the bearing saddle, the flexivities of the rotor and the impeller and oil film thicknesses of the bearings should be considered so that the motor's air gap and the clearance between pump blade and shell are evenly distributed. The reliability and hydraulic performances of bulb tubular pump units could be improved by reasonably arranging guide bearings, adopting radiating plate support of the bulb, combining the maintenance channel and the main support which is under the bulb, and using the metal pipe pump structure. The achievements could provide references to optimum design of bulb tubular pump units. Number of references:10 Main heading:Pumps Controlled terms:Bearings (structural) - Design - Hydraulics - Impellers - Journal bearings - Lubricating oils - Maintainability - Plate metal - Quality assurance - Reliability - Safety factor Uncontrolled terms:Air-gaps - Assembly quality - Bearing block - Bulb tubular pump units - Design Principles - Fatigue strength - Force analysis - Guide bearing - Hydraulic performance - Metal pipes - Motor rotors - Oil films - Optimum designs - Pump impeller - Pump structure - Pump system - Rolling bearings - Shaft deformation - Structure design - Supporting structure Classification code:913.3 Quality Assurance and Control - 632.1 Hydraulics - 618.2 Pumps - 913.5 Maintenance - 607.1 Lubricants - 535.1.2 Rolling Mill Practice - 408 Structural Design - 601.2 Machine Components DOI:10.3969/j.issn.1674-8530.2011.01.013 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20111213783947 Title:Longitudinal vibration of a metal core piezoelectric fiber Authors:Bian, Yi-Xiang (1); Qiu, Jin-Hao (2); Wang, Xin-Wei (2) Author affiliation:(1) College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China; (2) Key Lab of Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Corresponding author:Bian, Y.-X. Source title:Zhendong yu Chongji/Journal of Vibration and Shock Abbreviated source title:J Vib Shock Volume:30 Issue:1
Issue date:January 2011 Publication year:2011 Pages:111-115 Language:Chinese ISSN:10003835 Document type:Journal article (JA) Publisher:Chinese Vibration Engineering Society, 121 Nanjiang Lu, Shanghai, 200011, China Abstract:A metal core piezoelectric fiber (MPF) is one of the new type piezoelectric devices for sensors and actuators. When an external harmonically varying voltage is applied on electrodes of a cantilevered MPF, it will cause longitudinal vibration. A force appears due to the strain caused by the electric field in the piezoelectric elements. Using the vibration theory of a cantilevered bar, the longitudinal vibration equations of the MPF were derived. The electric displacement was deduced by using the constitutive equations of the piezoelectric element. And the electric charges on the electrodes were given by integrating electric displacement. The total current flowing through the electrode surface and the admittance of the MPF was derived from the electric charges. Using the resonance frequency, the elastic coefficient at a constant electric field S Number of references:15 Main heading:Piezoelectric actuators Controlled terms:Constitutive equations - Electric charge - Electric fields - Electrodes - Electromechanical coupling - Electromechanical devices - Fibers - Metal testing - Metals - Piezoelectricity - Resonance - Testing Uncontrolled terms:Antiresonance frequencies - Cantilevered bar - Constant stress - Dielectric permittivities - Dynamic testing - Elastic coefficient - Electric displacement - Electro mechanical coupling factors - Electrode surfaces - Longitudinal vibrations - Metal core - Metal core piezoelectric fibers - Piezoelectric coefficient - Piezoelectric elements - Piezoelectric fiber - Resonance frequencies - Sensors and actuators - Theoretical simulation - Total current - Vibration - Vibration theory Classification code:921 Mathematics - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 732 Control Devices - 715 Electronic Equipment, General Purpose and Industrial - 708 Electric and Magnetic Materials - 704.1 Electric Components - 701.1 Electricity: Basic Concepts and Phenomena - 701 Electricity and Magnetism - 601 Mechanical Design - 531 Metallurgy and Metallography - 423.2 Non Mechanical Properties of Building Materials: Test Methods - 408 Structural Design Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20111413898043 Title:Numerical simulation of optimal bulb of tubular pump Authors:Zhou, Jiren (1); Cheng, Li (2); Liu, Chao (2); Tang, Fangping (2) Author affiliation:(1) College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, China; (2) College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China Corresponding author:Zhou, J.(zhoujr@yzu.edu.cn) Source title:Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering Abbreviated source title:Paiguan Jixie Xuebao. Volume:29 Issue:1
Issue date:January 2011 Publication year:2011 Pages:72-76 Language:Chinese ISSN:16748530 CODEN:PAJIE2 Document type:Journal article (JA) Publisher:Editorial Department of Drainage and, 30 Mengxiyuan Lane, Zhenjiang, 212003, China Abstract:The flow patterns and hydraulic performances of two different bulbs of pump system, i.e. normal type and slin type, were studied. Based on the RNG k-Ε model, the SIMPLEC algorithm was applied to the solution of the discretization governing equation. Using multiple reference frames, the flow details of whole pumping systems whose length was of 10.72D, where D was of the impeller diameter, were obtained. The influences of the flow of pump system on difference bulbs were analyzed. The unsuitable design of bulbs caused flow separation and vortex. The calculation results illustrate that the static pressure contours of two pumping systems which were operated at design flowrate, large flowrate and small flowrate, were similar, and therefore the shape of bulb does not impact on the operation status of impellers. The results showed that the flowrate of minimum loss for slin taper bulb is of 112 percent of design flowrate, while that for normal bulb is of 106 percent of design flowrate. It is not quadratic function between flowrate and hydraulic loss, and the loss is somewhat related with the operating region. 3D numerical computation and model test showed that the performance of slin taper bulb was better than that of normal one, and consequently this type of pump system can be applied in the East Route Project of South-to-North Water Transfers. Number of references:10 Main heading:Mathematical models Controlled terms:Blowers - Design - Hydraulics - Impellers - Optimization - Pumping plants - Pumps - Three dimensional Uncontrolled terms:Bulb - Discretizations - Governing equations - Hydraulic loss - Hydraulic performance - Model tests - Multiple-reference frames - Numerical computations - Numerical simulation - Operating regions - Operation status - Pump system - Pumping systems - Quadratic function - SIMPLEC algorithm - Small flow-rate - South-to-North Water Transfer - Static pressure - Tubular pump Classification code:921.5 Optimization Techniques - 921 Mathematics - 902.1 Engineering Graphics - 632.1 Hydraulics - 618.3 Blowers and Fans - 618.2 Pumps - 601.2 Machine Components - 446 Waterworks - 408 Structural Design DOI:10.3969/j.issn.1674-8530.2011.01.015 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20113214220652 Title:Nano express open accepreparation of stable magnetic nanofluids containing fe Authors:Baobao, Zhao (1); Nan, Zhaodong (1) Author affiliation:(1) College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China Corresponding author:Baobao, Z.(zdnan@yzu.edu.cn) Source title:Nanoscale Research Letters Abbreviated source title:Nanoscale Res. Lett. Volume:6 Issue:1
Issue date:January 2011 Publication year:2011 Pages:1-8 Language:English ISSN:19317573 E-ISSN:1556276X Document type:Journal article (JA) Publisher:Springer New York, 233 Springer Street, New York, NY 10013-1578, United States Abstract:Stable magnetic nanofluids containing Fe Yüklə 2,34 Mb. Dostları ilə paylaş:
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