Title: Exciton binding energy and excitonic absorption spectra in a parabolic quantum wire under transverse electric field
Yüklə 2,34 Mb.
|
|
Number of references:22 Main heading:Nanofluidics Controlled terms:Monomers - Nanomagnetics - Nanoparticles - Nitrogen compounds - Polymerization - Polypyrroles - Stabilization - Superparamagnetism Uncontrolled terms:Core-shell - Iron sources - Long term stability - Nano-fluid - Nanofluids - Novel methods - One pot - Oxidizing agents - Polymerization reaction - Pyrrole monomers - Reducing reagents - Steric stabilization - Superparamagnetic behavior - Trisodium citrates Classification code:951 Materials Science - 933 Solid State Physics - 815.2 Polymerization - 815.1.1 Organic Polymers - 804 Chemical Products Generally - 761 Nanotechnology - 708.2 Conducting Materials - 708 Electric and Magnetic Materials - 701.2 Magnetism: Basic Concepts and Phenomena DOI:10.1186/1556-276X-6-230 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20112314039855 Title:Comparison of post-buckling behaviors of a S-S FGM beam under conservative and non-conservative distributed forces Authors:Li, Qing-Lu (1); Li, Shi-Rong (2) Author affiliation:(1) Department of Engineering Mechanics, Lanzhou University of Technology, 730050, China; (2) School of Civil Science and Technology, Yangzhou University, 225127, China Corresponding author:Li, Q.-L.(lqu2008@163.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:266-270 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:Based on the large deformation theory and considering the axial extension of the beam, the governing equations of post-buckling of a simply supported elastic FGM beam subjected to conservative and non-conservative distributed forces were established. In the analysis, it was assumed that the material properties of the beam vary continuously as a power function of the thickness coordinate. By using shooting method, the nonlinear boundary-value problem was solved numerically and the equilibrium paths as well as the post- buckling configurations of the deformed beam were presented. A comparison between the results of conservative system and that of non-conservative systems were given. The results shows that the features of the equilibrium paths of the the functionally graded beam under non-conservative are evidently different from those to a conservative one. © (2011) Trans Tech Publications, Switzerland. Number of references:8 Main heading:Buckling Controlled terms:Beams and girders - Building materials - Civil engineering - Construction equipment - Functionally graded materials Uncontrolled terms:Equilibrium path - Functionally graded - Non-conservative - Postbuckling - Shooting methods Classification code:931 Classical Physics; Quantum Theory; Relativity - 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 - 405.1 Construction Equipment - 412 Concrete DOI:10.4028/www.scientific.net/AMR.250-253.266 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110113542182 Title:Effects of chloride acclimation on iron oxyhydroxides and cell morphology during cultivation of Acidithiobacillus ferrooxidans Authors:Xiong, Huixin (1); Guo, Rong (1) Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China Corresponding author:Guo, R.(guorong@yzu.edu.cn) Source title:Environmental Science and Technology Abbreviated source title:Environ. Sci. Technol. Volume:45 Issue:1
Issue date:January 1, 2011 Publication year:2011 Pages:235-240 Language:English ISSN:0013936X E-ISSN:15205851 CODEN:ESTHAG Document type:Journal article (JA) Publisher:American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States Abstract:Iron oxyhydroxides as the efficient scavengers for heavy metals have been extensively investigated in iron-rich acid sulfate waters in the presence of Acidithiobacillus ferrooxidans (A. ferrooxidans, an especially important chemolithoautotroph for bioleaching and desulfurization of coal). In this study, we observed the morphology and elemental composition of cells in stationary phase and examined the dynamic variation of iron oxyhydroxides produced in cultures of A. ferrooxidans incubated in modified 9K medium initially including 0.15 M of ferrous iron, in the absence/presence of 0.2 M of chloride (NaCl/FeCl Number of references:34 Main heading:Cell culture Controlled terms:Bioleaching - Chlorine compounds - Desulfurization - Heavy metals - Heavy water - Iron - Morphology - pH Uncontrolled terms:Acid sulfate waters - Acidithiobacillus ferrooxidans - Bacterial cultures - Cell morphology - Cellular morphology - Culture medium - Dynamic variations - Elemental compositions - Ferrooxidans - Ferrous iron - Iron oxyhydroxides - Jarosites - Lag period - Low level - pH range - pH value - Schwertmannite - Stationary phase - Typical morphology Classification code:804 Chemical Products Generally - 802.3 Chemical Operations - 802.2 Chemical Reactions - 951 Materials Science - 801.2 Biochemistry - 545.1 Iron - 531 Metallurgy and Metallography - 801.1 Chemistry, General DOI:10.1021/es1019146 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110713667749 Title:Determination of iron(III) by room temperature ionic liquids/surfactant sensitized fluorescence quenching method Authors:Zhu, Xiashi (1); Jiang, Rongrong (1) Author affiliation:(1) College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China Corresponding author:Zhu, X.(xszhu@yzu.edu.cn) Source title:Journal of Fluorescence Abbreviated source title:J Fluoresc Volume:21 Issue:1
Issue date:January 2011 Publication year:2011 Pages:385-391 Language:English ISSN:10530509 CODEN:JOFLEN Document type:Journal article (JA) Publisher:Springer New York, 233 Springer Street, New York, NY 10013-1578, United States Abstract:A new method for the determination of iron (III) has been described. The analytical procedure was based on the fluorescence quenching of salicylfluorone (SAF) by iron (III) and the fluorescence quenching value (ΔF) could be increased in the medium of room temperature ionic liquids (RTILs) (1-ethyl-3-methylimidazolium ethyl sulfate)/SDS (sodium dodecyl sulfate). The main factors influencing the fluorescence quenching (ΔF) were investigated in detail. Under the optimal conditions, the linear equation was \Delta {{F }} = {{319c }} + {176}.{5}\; (c:μg&bullmL-1, r∈=∈0.9936). The linear range of calibration curve was 0.2-1.1 μg&bullmL-1 and the detection limit was 8.3 ng&bullmL-1. The preliminary sensitized mechanism was discussed with distribution coefficient and fluorescence quantum yield in different media. The method has been applied to the determination of Fe (III) in water samples with satisfactory results. © 2010 Springer Science+Business Media, LLC. Number of references:25 Main heading:Ionic liquids Controlled terms:Fluorescence - Ions - Iron compounds - Micelles - Quantum yield - Quenching - Sodium - Sodium sulfate Uncontrolled terms:Analytical procedure - Calibration curves - Detection limits - Distribution coefficient - Ethyl sulfate - Fluorescence quantum yield - Fluorescence quenching - Fluorescence quenching method - Linear range - Optimal conditions - Room temperature - Room temperature ionic liquids - Room temperature ionic liquids (RTILs) - Salicylfluorone (SAF) - SDS micelles - Sensitized fluorescence - Sodium dodecyl sulfate - Water samples Classification code:537.1 Heat Treatment Processes - 549.1 Alkali Metals - 741.1 Light/Optics - 801 Chemistry - 804 Chemical Products Generally - 804.2 Inorganic Compounds DOI:10.1007/s10895-010-0727-9 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20111113743883 Title:Preliminary research on the relationship between long-range correlations and predictability Authors:Zhang, Zhi-Sen (1); Gong, Zhi-Qiang (3); Zhi, Rong (3); Feng, Guo-Lin (1); Hu, Jing-Guo (1) Author affiliation:(1) College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China; (2) Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; (3) National Climate Center, China Meteorological Administration, Beijing 100081, China Corresponding author:Feng, G.-L.(fenggl@cma.gov.cn) Source title:Chinese Physics B Abbreviated source title:Chin. Phys. Volume:20 Issue:1
Issue date:January 2011 Publication year:2011 Article number:019201 Language:English ISSN:16741056 Document type:Journal article (JA) Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom Abstract:By establishing the Markov model for a long-range correlated time series (LRCS) and analysing its evolutionary characteristics, this paper defines a physical effective correlation length (ECL) τ, which reflects the predictability of the LRCS. It also finds that the ECL has a better power law relation with the long-range correlated exponent γ of the LRCS: τ = K exp(-γ/0.3) + Y, (0 < γ < 1)-the predictability of the LRCS decays exponentially with the increase of γ. It is then applied to a daily maximum temperature series (DMTS) recorded at 740 stations in China between the years 1960-2005 and calculates the ECL of the DMTS. The results show the remarkable regional distributive feature that the ECL is about 10-14 days in west, northwest and northern China, and about 5-10 days in east, southeast and southern China. Namely, the predictability of the DMTS is higher in central-west China than in east and southeast China. In addition, the ECL is reduced by 1-8 days in most areas of China after subtracting the seasonal oscillation signal of the DMTS from its original DMTS; however, it is only slightly altered when the decadal linear trend is removed from the original DMTS. Therefore, it is shown that seasonal oscillation is a significant component of daily maximum temperature evolution and may provide a basis for predicting daily maximum temperatures. Seasonal oscillation is also significant for guiding general weather predictions, as well as seasonal weather predictions. © 2011 Chinese Physical Society and IOP Publishing Ltd. Number of references:47 Main heading:Correlation methods Controlled terms:Entropy - Forecasting - Markov processes - Soil structure interactions - Time series Uncontrolled terms:Correlation lengths - information entropy - Long range correlations - Long-range correlation - Markov model - Maximum temperature - Northern China - Oscillation signals - Power law relation - predictability - Southern China - Weather prediction - West China Classification code:483.2 Foundations - 641.1 Thermodynamics - 922.1 Probability Theory - 922.2 Mathematical Statistics DOI:10.1088/1674-1056/20/1/019201 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110313592304 Title:Hydrophobic ionic liquid extraction-flame atomic absorption spectrophotometry for separation/analysis trace gold Authors:Wu, Jun (1); Fu, Hao (1); Li, Bin-Jian (1); Zhu, Xia-Shi (1) Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China Corresponding author:Wu, J.(junwu@yzu.edu.cn) 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:31 Issue:1
Issue date:January 2011 Publication year:2011 Pages:260-262 Language:Chinese ISSN:10000593 CODEN:GYGFED Document type:Journal article (JA) Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China Abstract:In the present paper, the hydrophobicity ionic liquid 1-butyl-3- methylimidazolium hexafluorophosphate ([C4mim][PF6]) was synthesized with 1-methylimidazole and butylbromide and equimolar ammonium hexafluorophosphate, which was applied to preconcentration for trace gold. The factors which may affect preconcentration of gold were investigated. The experimental results showed that the absorbance was linear when the concentration of gold was in the range of 0.40~16.00μg · mL-1, with linear equation A = 0.00763c +0.07387(c:μg · mL-1), correlation coefficient r = 0.9991, and detection limit 0.072 μg · mL-1. The method was applied to the determination of trace gold in water samples satisfactorily. Number of references:18 Main heading:Solvent extraction Controlled terms:Absorption - Absorption spectroscopy - Ammonium compounds - Atomic absorption spectrometry - Atoms - Gold - Hydrophobicity - Ionic liquids - Ions - Trace analysis Uncontrolled terms:1-Butyl-3-methyl-imidazolium hexafluorophosphate - 1-methylimidazole - Absorbances - Correlation coefficient - Detection limits - Flame atomic absorption spectrometry - Flame atomic absorption spectrophotometry - Hexafluorophosphates - Hydrophobic ionic liquid - Pre-concentration - Water samples Classification code:547.1 Precious Metals - 801 Chemistry - 802.3 Chemical Operations - 804 Chemical Products Generally - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics DOI:10.3964/j.issn.1000-0593(2011)01-0260-03 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20111413898044 Title:Influence of middle division pier on hydraulic performance in pumping station outlet conduit Authors:Liang, Jindong (1); Lu, Linguang (1); Liu, Ronghua (1); Wang, Gang (1) Author affiliation:(1) College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China Corresponding author:Lu, L.(yzlulg@yzcn.net) 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:77-81 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 study the influence of middle division pier on the hydraulic performance of a low head pump system, 3D turbulent numerical simulation method was applied to calculate the flow patterns and hydraulic losses of a separated conduit of a certain low head pumping station. Under the design discharge that the middle division pier was set in the conduit, the hydraulic losses calculated were increased by 0.024 m and 0.033 m, respectively. Transparent conduit model experiments were carried out to validate the calculation results. The results of the model experiment are consistent with those of the numerical simulated ones. Based on the numerical simulation and model experiment results, the influence of the pier on the hydraulic performance for both siphon outlet conduit and straight outlet conduit were studied. The results indicate that the flow pattern in the conduit is asymmetrical due to the influence of the flow circulation at the outlet section of the pump guide vane. And consequently, the hydraulic performance of the conduit was affected to a certain extent by the pier. The longer the pier, the larger the influence. Therefore, the pier is unprofitable to the hydraulic performance of the conduit and the pier for a large pumping station with low head could be removed if the structural design condition of the conduit is permitted. Number of references:10 Main heading:Experiments Controlled terms:Computer simulation - Flow patterns - Hydraulics - Mathematical models - Numerical methods - Piers - Pumping plants - Pumps - Structural design Uncontrolled terms:Circulation - Hydraulic performance - Middle division pier - Outlet conduit - Pumping station Classification code:921 Mathematics - 901.3 Engineering Research - 723.5 Computer Applications - 632.1 Hydraulics - 921.6 Numerical Methods - 631.1 Fluid Flow, General - 446 Waterworks - 408.1 Structural Design, General - 407.1 Maritime Structures - 618.2 Pumps DOI:10.3969/j.issn.1674-8530.2011.01.016 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20111113743987 Title:Community detection with consideration of non-topological information Authors:Zou, Sheng-Rong (1); Peng, Yu-Jing (1); Liu, Ai-Fen (2); Xu, Xiu-Lian (2); He, Da-Ren (2) Author affiliation:(1) College of Information Engineering, Yangzhou University, Yangzhou 225009, China; (2) College of Physics Science and Technology, Yangzhou University, Yangzhou 225009, China Corresponding author:He, D.-R.(darendo10@yahoo.com.cn) Source title:Chinese Physics B Abbreviated source title:Chin. Phys. Volume:20 Issue:1
Issue date:January 2011 Publication year:2011 Article number:018902 Language:English ISSN:16741056 Document type:Journal article (JA) Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom Abstract:In a network described by a graph, only topological structure information is considered to determine how the nodes are connected by edges. Non-topological information denotes that which cannot be determined directly from topological information. This paper shows, by a simple example where scientists in three research groups and one external group form four communities, that in some real world networks non-topological information (in this example, the research group affiliation) dominates community division. If the information has some influence on the network topological structure, the question arises as to how to find a suitable algorithm to identify the communities based only on the network topology. We show that weighted Newman algorithm may be the best choice for this example. We believe that this idea is general for real-world complex networks. © 2011 Chinese Physical Society and IOP Publishing Ltd. Number of references:14 Main heading:Algorithms Controlled terms:Electric network topology Uncontrolled terms:Best choice - Community detection - community division - Complex networks - Network topological structure - Network topology - Real-world - Real-world networks - Research groups - Topological information - topological structure - Weighted networks Classification code:703.1 Electric Networks - 723 Computer Software, Data Handling and Applications - 921 Mathematics DOI:10.1088/1674-1056/20/1/018902 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc. Accession number:20110513630015 Title:First synthesis of a C-homosteroid from pregn-4-ene-3,11,20-trione Authors:Zhang, Zonglei (1); Wang, Lizhong (2); Bian, Xiaoqin (1); Sun, Qian (1); Xu, Hangxian (1); Wang, Cunde (1) Author affiliation:(1) School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China; (2) Department of Environmental and Chemical Engineering, Taizhou Polytechnic College, Taizhou 225300, China Corresponding author:Wang, C.(wangcd@yzu.edu.cn) Source title:Helvetica Chimica Acta Abbreviated source title:Helv. Chim. Acta Volume:94 Issue:1
Issue date:January 2011 Publication year:2011 Pages:98-104 Language:English ISSN:0018019X E-ISSN:15222675 CODEN:HCACAV Document type:Journal article (JA) Publisher:Verlag Helvetica Chimica Acta AG, Hofwiesenstrasse 26. Postfach, Zurich, CH-8042, Switzerland Abstract:(3α,5α)-3-Hydroxy-C-homopregnane-11,20-dione (3) was prepared in eleven steps from the commercially available pregn-4-ene-3,11,20-trione (4) via the 11-oxo-13-formyl-12,13-secopregnane intermediate 11 (Scheme 2). Subjection of this secopregnane to an intramolecular aldol condensation afforded the α,β-unsaturated key intermediate C-homopregn-12-en-11-one 12. Copyright © 2011 Verlag Helvetica Chimica Acta AG, Zu¨rich, Switzerland. Number of references:41 Main heading:Condensation reactions Uncontrolled terms:Aldol condensation Classification code:802.2 Chemical Reactions DOI:10.1002/hlca.201000132 Database:Compendex Compilation and indexing terms, Copyright 2011 Elsevier Inc.
Accession number:20105213529862 Title:Face recognition based on 2D locally discriminating projection method Authors:Wang, Jianguo (1); Hua, Jizhao (2); Liu, Suolan (3) Author affiliation:(1) Department of Computer Science and Technology, Tangshan College, Tangshan, China; (2) College of Information, Changzhou University, Changzhou, China; (3) College of Information Engineer, Yangzhou University, Yangzhou, China Corresponding author:Wang, J. Source title:Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 Abbreviated source title:Proc. - Int. Congr. Image Signal Process., CISP Volume:2 Monograph title:Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 Yüklə 2,34 Mb. Dostları ilə paylaş:
|