Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
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Authors:Cong, Hai-Bing (1); Huang, Ting-Lin (2); Chai, Bei-Bei (2) Author affiliation:(1) School of Environmental Science and Engineering, Yangzhou Univ., 31th Jiangyang Road, Yangzhou City 225009, China; (2) School of Environmental and Municipal Engineering, Xi'an Univ. of Architecture and Technology, 13th Yanta Road, Xi'an City 710055, China Corresponding author:Cong, H.-B.(chb9903@126.com) Source title:Journal of Hydraulic Engineering Abbreviated source title:J. Hydraul. Eng. Volume:137 Issue:6
Issue date:14 June 2011 Publication year:2011 Pages:659-667 Language:English ISSN:07339429 Document type:Journal article (JA) Publisher:American Society of Civil Engineers (ASCE), 1801 Alexander Graham Bell Drive, Reston, VA 20191-4400, United States Abstract:Thermal stratification is a common phenomenon in deep lakes and reservoirs, which often results in water-quality deterioration, including such problems as hypolimnetic anoxia, the release of pollutants from sediments, and algal blooms. Hypolimnetic oxygenation and destratification are the two commonly used methods for resolving these water-quality problems. A new water-quality improvement device, the water-circulating aerator, was designed to destratify lakes and reservoirs, by circulation and oxygenation of upper and lower layers of water. The design of the structure of the water-circulating aerator is detailed. Three mathematical models were built to optimize this structure, estimate the rate of water flow in the aerator, and calculate the rate of oxygen transfer from air bubbles to water in the aerator. These models were verified by experiments. The water-circulating aerator system has been successfully applied in a stratified reservoir to increase dissolved oxygen to reduce the releasing of ammonia-nitrogen from sediments under anoxic conditions. © 2011 American Society of Civil Engineers. Number of references:18 Main heading:Water aeration Controlled terms:Anoxic sediments - Biochemical oxygen demand - Dissolved oxygen - Flow of water - Hydraulics - Lakes - Mathematical models - Optimization - Oxygenation - Oxygenators - Reservoirs (water) - Sedimentology - Water quality Uncontrolled terms:Air bubbles - Algal blooms - Ammonia-nitrogen - Anoxic conditions - De-stratification - Lake sand reservoirs - Oxygen transfer - Stratified reservoirs - Water flow - Water flow rate - Water flows - Water temperature Classification code:921.5 Optimization Techniques - 481.1 Geology - 483 Soil Mechanics and Foundations - 631.1.1 Liquid Dynamics - 632.1 Hydraulics - 803 Chemical Agents and Basic Industrial Chemicals - 921 Mathematics - 462.2 Hospitals, Equipment and Supplies - 453 Water Pollution - 445 Water Treatment - 444 Water Resources - 441.2 Reservoirs - 407 Maritime and Port Structures; Rivers and Other Waterways - 453.2 Water Pollution Control DOI:10.1061/(ASCE)HY.1943-7900.0000351 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112314045866 Title:Life-time index in whole structural life-cycle Authors:Zhong, Xiaoping (1); Jin, Weiliang (1); Xue, Wen (1) Author affiliation:(1) Institute of Structural Engineering, Zhejiang University, No.388.Yuhangtang Road, Hangzhou, 310058, China; (2) Construction Scientific and Engineering Institute, Yangzhou University, Yangzhou, Jiangsu, 225009, China Corresponding author:Zhong, X.(yz.zxping@pub.yz.jsinfo.net) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:243-249 Monograph title:Advances in Civil Engineering and Architecture Issue date:2011 Publication year:2011 Pages:5711-5716 Language:English ISSN:10226680 ISBN-13:9783037851258 Document type:Conference article (CA) Conference name:1st International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2011 Conference date:June 18, 2011 - June 20, 2011 Conference location:Haikou, China Conference code:85055 Sponsor:Hainan University, College of Civil Engineering and Architecture; Guizhou University, College of Civil and Architecture Engineering; Hainan Society of Theoretical and Applied Mechanics Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:In the analysis on whole structural life-cycle, there are two important factors to need to be considered. One is the determination of design service life of structure, and another is design of structure based on service life. After analyzing deeply the influence factors of life-time index, it can be found that the design service life of structure not only depends on technology level, functional requirement and economic cost factors of structures, but also relate with the specific environmental conditions, using conditions and maintenance conditions of structures. So that, an analysis method of determined design service life of structure is given in this paper. For design of structure on service life, from the view of whole structural life-cycle, a probability reliability-based analysis method of structural service life design and re-design is proposed in this paper. By updating constantly design parameters, the correctness of predicted service life is improved gradually. © (2011) Trans Tech Publications. Number of references:7 Main heading:Structural analysis Controlled terms:Building materials - Civil engineering - Construction equipment - Design - Large scale systems - Reliability analysis - Service life Uncontrolled terms:Analysis method - Design parameters - Design services - Economic costs - Environmental conditions - Functional requirement - Influence factors - IS design - Life-times - Probabilistic performance - Structure-based - Whole life-cycle Classification code:913.1 Production Engineering - 913 Production Planning and Control; Manufacturing - 415 Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 413 Insulating Materials - 961 Systems Science - 412 Concrete - 409 Civil Engineering, General - 408.1 Structural Design, General - 408 Structural Design - 405.1 Construction Equipment - 411 Bituminous Materials DOI:10.4028/www.scientific.net/AMR.243-249.5711 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112314045519 Title:Experimental investigation of unbonded post-tensioned short-limb shear wall Authors:Sun, Weiwei (1); Yuan, Jun (2) Author affiliation:(1) Department of Civil Engineering, Nanjing University of Science and technology, No.200, Qiao Ling Wei, Nan Jing, 210094, China; (2) College of Civil Science and Engineering, Yangzhou University, No.88 Daxue South Road, Yangzhou, 225009, China Corresponding author:Sun, W.(sww717@163.com) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:243-249 Monograph title:Advances in Civil Engineering and Architecture Issue date:2011 Publication year:2011 Pages:3863-3867 Language:English ISSN:10226680 ISBN-13:9783037851258 Document type:Conference article (CA) Conference name:1st International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2011 Conference date:June 18, 2011 - June 20, 2011 Conference location:Haikou, China Conference code:85055 Sponsor:Hainan University, College of Civil Engineering and Architecture; Guizhou University, College of Civil and Architecture Engineering; Hainan Society of Theoretical and Applied Mechanics Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:In order to improve the seismic capacity of short-limb shear wall, two kinds of unbonded post-tensioned short-limb shear wall based on unbonded post-tensioned connections were put forward: (1) direct assembly short-limb wall; (2) hybrid assembly short-limb wall. The quasi-static cycle tests of two reduced scale specimens were conducted to simulate the seismic performance of 8-story symmetric double short-limb shear walls. The test results verified the basic design concept of unbonded post-tensioned short-limb shear wall, which requires that under strong earthquake action, the main part of coupling beam remains elastic and plastic deformation focus on the connection region of limbs and coupling beams. Therefore, the new short-limb shear wall is easier to fix. The test results also show the energy dissipation capacity of hybrid assembly short-limb wall is higher than that of direct assembly short-limb wall due to deformed bar crossing the interface between limbs and coupling beams. © (2011) Trans Tech Publications. Number of references:7 Main heading:Shear walls Controlled terms:Building materials - Civil engineering - Construction equipment - Energy dissipation - Seismology Uncontrolled terms:Pre-stress - Quasi-static - Short-limb - Test - Unbonded Classification code:484.1 Earthquake Measurements and Analysis - 415 Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 413 Insulating Materials - 525.4 Energy Losses (industrial and residential) - 412 Concrete - 409 Civil Engineering, General - 405.1 Construction Equipment - 402 Buildings and Towers - 411 Bituminous Materials DOI:10.4028/www.scientific.net/AMR.243-249.3863 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112314040517 Title:EFG virtual crack closure technique for the determination of stress intensity factor Authors:Chang, Xueping (1); Liu, Jun (2); Li, Shirong (3) Author affiliation:(1) School of Mechatronic Engineering, Southwest Etroleum University, Chengdu 610500, China; (2) School of Civil Engineering, Southwest Petroleum University, Chengdu 610500, China; (3) Department of Hydraulic Science and Engineering, Yangzhou University, Jiangsu 225009, China Corresponding author:Chang, X.(xuepingch0952@sina.com) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:250-253 Monograph title:Advanced Building Materials Issue date:2011 Publication year:2011 Pages:3752-3758 Language:English ISSN:10226680 ISBN-13:9783037851272 Document type:Conference article (CA) Conference name:1st International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2011 Conference date:June 18, 2011 - June 20, 2011 Conference location:Haikou, China Conference code:84978 Sponsor:Hainan University, College of Civil Engineering and Architecture; Guizhou University, College of Civil and Architecture Engineering; Hainan Society of Theoretical and Applied Mechanics Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:The aim of this paper is to introduce a virtual crack closure technique based on EFG method for thread-shape crack. The cracked component is discretized and the displacement field is determined using a coupled FE/EFG method, by which EFG nodes are arranged in the vicinity of crack tip and FE elements in the remain part in order to improve computational efficiency. Two typical parameters, nodal force and crack opening displacement attached to crack tip are calculated by means of setting up an auxiliary FE zone around crack tip. Strain energy release rate (SERR), further stress intensity factor (SIF) are determined by the two parameters. The method to calculate SIF is named as virtual crack closure technique based on EFG method. It is showed by several numerical examples that using the method presented in this paper, SIF on the crack tip can be obtained accurately. © (2011) Trans Tech Publications, Switzerland. Number of references:22 Main heading:Crack closure Controlled terms:Building materials - Civil engineering - Computational efficiency - Construction equipment - Crack tips - Energy release rate - Joints (structural components) - Numerical methods - Strain energy - Strain rate - Stress intensity factors Uncontrolled terms:Crack opening displacements - Displacement field - EFG - EFG method - Nodal force - Numerical example - Numerical solution - Strain energy release rate(SERR) - Two parameter - Virtual crack closure technique Classification code:921.6 Numerical Methods - 921 Mathematics - 421 Strength of Building Materials; Mechanical Properties - 415 Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 931.1 Mechanics - 413 Insulating Materials - 411 Bituminous Materials - 409 Civil Engineering, General - 408.2 Structural Members and Shapes - 405.1 Construction Equipment - 412 Concrete DOI:10.4028/www.scientific.net/AMR.250-253.3752 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112314040420 Title:The study on inverse system decoupling and pdf control used in power magnetic pump Authors:Wang, Jun (1); Zeng, Li (1) Author affiliation:(1) College of Mechanical Engineering, Yangzhou University, China Corresponding author:Wang, J. Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:250-253 Monograph title:Advanced Building Materials Issue date:2011 Publication year:2011 Pages:3249-3253 Language:English ISSN:10226680 ISBN-13:9783037851272 Document type:Conference article (CA) Conference name:1st International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2011 Conference date:June 18, 2011 - June 20, 2011 Conference location:Haikou, China Conference code:84978 Sponsor:Hainan University, College of Civil Engineering and Architecture; Guizhou University, College of Civil and Architecture Engineering; Hainan Society of Theoretical and Applied Mechanics Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:In this paper, the coupling magnetic field model which the power magnetic pump generated by interference between the rotation and levitation force is linear inverse system decoupling, and study pseudo-derivative feedback control strategy on decoupling linearization system. According to the performance analysis and simulation of pseudo-derivative feedback control system, it can be concluded that pseudo-derivative feedback control system has quick response, high control precision, good control ability, and excellent robustness. It doesn't ask the controlled object for a exact math model. Little warp will not influence system performance. It can be applied to project system. © (2011) Trans Tech Publications, Switzerland. Number of references:6 Main heading:Robustness (control systems) Controlled terms:Adaptive control systems - Building materials - Civil engineering - Construction equipment - Feedback control - Feedback linearization - Magnetic fields - Magnetic levitation - Mathematical models - Pumps Uncontrolled terms:Decoupling - Inverse system - PDF control - Power magnetic - Robustness Classification code:921 Mathematics - 731.1 Control Systems - 701.2 Magnetism: Basic Concepts and Phenomena - 618.2 Pumps - 415 Metals, Plastics, Wood and Other Structural Materials - 414 Masonry Materials - 413 Insulating Materials - 412 Concrete - 411 Bituminous Materials - 409 Civil Engineering, General - 405.1 Construction Equipment DOI:10.4028/www.scientific.net/AMR.250-253.3249 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112514077144 Title:Solid-liquid equilibria of the ternary sodium 3-nitrobenzenesulfonate + sodium 4-nitrobenzenesulfonate + water system Authors:Li, Rong-Rong (1); Zhao, Hong-Kun (2); Jiang, Ming (3); Wang, Yong (1); Wang, Qing-Feng (1) Author affiliation:(1) School of Pharmaceutical and Chemical Engineering, TaiZhou University, Linhai, Zhejiang, 317000, China; (2) College of Chemistry and Chemical Engineering, YangZhou University, YangZhou, Jiangsu, 225002, China; (3) School of Life Science, TaiZhou University, Linhai, Zhejiang, 317000, China Corresponding author:Li, R.-R.(lrr@tzc.edu.cn) Source title:Journal of Chemical and Engineering Data Abbreviated source title:J Chem Eng Data Volume:56 Issue:6
Issue date:June 9, 2011 Publication year:2011 Pages:2955-2959 Language:English ISSN:00219568 E-ISSN:15205134 CODEN:JCEAAX Document type:Journal article (JA) Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States Abstract:In this investigation, the mutual solubility for the ternary sodium 3-nitrobenzenesulfonate + sodium 4-nitrobenzenesulfonate + water system was determined at (283.15, 303.15, and 323.15) K. The phase diagrams of the system were constructed based on the measured solubility. The solid phases formed in the studied system were confirmed by Schreinemaker's wet residue method. In addition, the density of the equilibrium liquid phase was obtained. At (283.15, 303.15, and 323.15) K, there are two pure solids formed which correspond to sodium 3-nitrobenzenesulfonate and sodium 4-nitrobenzenesulfonate in the ternary sodium 3-nitrobenzenesulfonate + sodium 4-nitrobenzenesulfonate + water system. Besides, the adduct of sodium 3-nitrobenzenesulfonate with sodium 4-nitrobenzenesulfonate, in which the mole ratio of the two compositions is 1:1, was formed at 323.15 K. © 2011 American Chemical Society. Number of references:19 Main heading:Sodium Controlled terms:Liquids - Phase diagrams - Phase equilibria - Solubility - Ternary systems - Waterworks Uncontrolled terms:Liquid Phase - Mole ratio - Mutual solubility - Solid liquid equilibrium - Solid phasis - Water system Classification code:446 Waterworks - 531.1 Metallurgy - 549.1 Alkali Metals - 801.4 Physical Chemistry - 931.2 Physical Properties of Gases, Liquids and Solids DOI:10.1021/je200202g Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20112314026233 Title:Solvothermal synthesis of CeO Authors:Zhang, Yong Cai (1); Zhang, En Ren (1) Author affiliation:(1) Key Laboratory of Environmental Material and Environmental Engineering of Jiangsu Province, College of Chemistry and Chemical Engineering, Yangzhou University, No.88, Da Xue Road, Yang Zhou, 225002, China Corresponding author:Zhang, Y. C.(zhangyc@yzu.edu.cn) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:236-238 Monograph title:Application of Chemical Engineering Issue date:2011 Publication year:2011 Pages:2000-2003 Language:English ISSN:10226680 ISBN-13:9783037851210 Document type:Conference article (CA) Conference name:2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 Conference date:May 28, 2011 - May 30, 2011 Conference location:Changsha, China Conference code:84977 Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Ultrafine CeO Number of references:13 Main heading:Absorption spectroscopy Controlled terms:Absorption - Cerium - Chemical engineering - Light absorption - Nanoparticles - Optical properties - Oxygen vacancies - Photoelectron spectroscopy - Toluene - Transmission electron microscopy - Ultraviolet spectroscopy - X ray diffraction - X ray photoelectron spectroscopy Uncontrolled terms:Cubic phase - Solvothermal - Solvothermal synthesis - Solvothermal treatment - TEM - TEM images - Ultrafine - UV absorption - UV-VIS absorption spectra - XPS - XRD Classification code:933.1.1 Crystal Lattice - 933 Solid State Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 805.1 Chemical Engineering - 804.1 Organic Compounds - 801 Chemistry - 761 Nanotechnology - 741 Light, Optics and Optical Devices - 708 Electric and Magnetic Materials - 547.2 Rare Earth Metals - 482 Mineralogy DOI:10.4028/www.scientific.net/AMR.236-238.2000 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20112314026602 Title:Microwave synthesis and application of cationic bagasse hemicelluloses Authors:Zhu, Hong Xiang (1); He, Yu Cai (2); Jing, Xiao Bi (3); Lee, Hak Lae (4); Li, Li Zi (4) Author affiliation:(1) School of Light Industrial and Food Engineering, Guangxi University, Da xue road 100#, Nanning, 530004, China; (2) School of Pharmacetical and Life Sciences, Changzhou University, Gehu 1#, Changzhou, 213164, China; (3) Department of Chemistry, Yangzhou University, 88 South Daxue Road, Yangzhou, 225000, China; (4) Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Korea, Republic of Corresponding author:Jing, X. B.(jingxiaobi@yahoo.com.cn) Source title:Advanced Materials Research Abbreviated source title:Adv. Mater. Res. Volume:239-242 Monograph title:Advanced Materials Issue date:2011 Publication year:2011 Pages:730-735 Language:English ISSN:10226680 ISBN-13:9783037851234 Document type:Conference article (CA) Conference name:2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 Conference date:May 28, 2011 - May 30, 2011 Conference location:Changsha, China Conference code:84979 Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract:Novel microwave synthesis cationic hemicelluloses from sugarcane bagasse were obtained by quaternization with CHMAC using sodium hydroxide as a catalyst in microwave synthesis condition. The parameters including the dosage of hemicellulose/CHMAC, the microwave time and the microwave power were optimized and the extent of quaternization was measured by zeta potential. As paper additive, the effect of cationic hemicellulose on bleached bagasse was researched. Then pulp handsheet properties were studied. The results indicated that adding the cationic hemicellulose could increase paper mechanical strengths, and its effect was better than original bleached bagasse pulp. At the dosage of 0.8% on oven dried pulp, paper tensile index, tensile strength, breaking length, burst index and folding endurance can be increased by 43.79%, 36.95%, 33.11%, 17.35%, 33.33% respectively, much better than the paper without the cationic hemicellulose. © (2011) Trans Tech Publications. Yüklə 2,34 Mb. Dostları ilə paylaş:
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