检索结果-南通市图书馆

BINDING　ENERGY　OF　THE　SHALLOW　DONOR　IN　（CdTe）_m／（ZnTe）_n　STRAINED　DOUBLE　QUANTUM　WELL

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1996年第2期9卷 103-108页

作者： XING Jinhai(Department of Physics,Liaoning University,Shenyang 110036,China)HUANG Heluan(Department of Electronic Science and Engineering,Liaoning University,110036,China) Liaoning Univ Shenyang China

In this paper the binding energy of the *** in CdTe/ZnTe strained double quantum well was *** effect of the finite well potential and strain,resulting from the lattice mismatch,on the binding energy of the impurity is included in a variational *** binding energy is obtained as a function of the well width,barrier width,and impurity position in the barrier by using a variational *** result of the present calculation shows that the variational law of the binding energy is similar to that of unstrained materials.

关键词： binding energy shallow donor strained double quantum well CdTe ZnTe

Non-equilibrium Thermodynamic Analysis of The Transport Properties of Formed-in-Place Zirconium (Ⅳ) Hydrous Oxide-Polyacylate Membranes in aqueous NaNO_3 solution

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1998年第9期9卷 867-868页

作者： Jia Zhen YANG (Department of Chemistry, Liaoning University, Shenyang 110036) Department of Chemistry Liaoning University Shenyang 110036 China

Nanofiltration of aqueous NaNO3 solution with a dynamically formed Zr(IV) hydrousoxide-PAA membrane is presented. The practical transpoft coefficients Lp, σ, ω were obtainedusing relationships of the non-equilibrium... 详细信息

关键词： non-equilibrium thermodynamics dynamically formed membrane electrolytenanofiltration

Spontaneous Transverse Pattern Formation in a Nonlinear Optical Medium with Feedback Mirror

在线全文

学校读者我要写书评

暂无评论

Communications in Nonlinear Science and Numerical Simulation 1998年第1期3卷 39-43页

作者： Luchuan WANG, Qinliang FAN (Department of Physics, Liaoning University, Shenyang, 110036, China) Department of Physics Liaoning University Shenyang 110036 China

ＩｎｔｒｏｄｕｃｔｉｏｎＳｐｏｎｔａｎｅｏｕｓｔｒａｎｓｖｅｒｓｅｐａｔｅｒｎｓｈａｖｅｂｅｅｎｐｒｅｄｉｃｔｅ［１］ａｎｄｏｂｓｅｒｖｅｄ［２］．Ａｒａｔｈｅｒｓｉｍｐｌｅａｒｒａｎｇｅｍｅｎｔｃｏｎｓｉｓｔｉｎ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＳｐｏｎｔａｎｅｏｕｓｔｒａｎｓｖｅｒｓｅｐａｔｅｒｎｓｈａｖｅｂｅｅｎｐｒｅｄｉｃｔｅ［１］ａｎｄｏｂｓｅｒｖｅｄ［２］．ＡｒａｔｈｅｒｓｉｍｐｌｅａｒｒａｎｇｅｍｅｎｔｃｏｎｓｉｓｔｉｎｇｏｆａｔｈｉｎＫｅｒ－ｓｌｉｃｅ...

关键词： spontaneous transverse pattern formation amplitude modulation phase modulation

Electrolytic Sampling from Pure Copper and Common Brasses Ⅰ: Calculation of the Mass Dissolved from the Samples according to Faraday's Law

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1997年第2期8卷 167-170页

作者： Jin ZHANG Jian-Nan YANG(Chemistry Department, Liaoning University, Shenyang, 110036) Chemistry Department Liaoning University Shenyang 110036 China

In a procedure for electrolytic dissolving pure copper and common brasses, the approximate electrochemical mole mass(k) of the sample was determined in accordance with the brand of the sample, a stitable electrolyte was selected to make the current efficiency equal to 100%, and then the dissolved mass of samples was calculated according to Faraday's law(m=klt).Three representative samples were sampled by the electrolytic dissolution method and the calculated dissolved amounts were equal to the values by weighing the *** cxperimental results of zinc and copper in the anode liquor are in agreement with certified values.

关键词： Mass Electrolytic Sampling from Pure Copper and Common Brasses Calculation of the Mass Dissolved from the Samples according to Faraday’s Law

Dark Spatial Soliton Interaction in Nonlinear Kerr Medium

在线全文

学校读者我要写书评

暂无评论

Communications in Nonlinear Science and Numerical Simulation 1998年第4期3卷 263-266页

作者： Luchuan WANG and Qinliang FAN (Department of Physics, Liaoning University, Shenyang 110036, China) Department of Physics Liaoning University Shenyang 110036 China

The dark spatial soliton interaction in nonlinear Kerr medium has been studied in this paper. The problem has been solved by the use of the slowly varyingenvelope approximation in solving coupled nonlinear Schrodinger equations. The perturbation nature of dark spatial soliton interaction has been described and some of their key properties has been discussed as well in the paper.

关键词： dark spatial soliton coupled nonlinear Schrodinger equations(NSE) slowly varying envelope approximation.

BINDING ENERGY OF SHALLOW DONOR IN In_xGa_(1-x)As/GaAsSTRAINED QUANTUM WELL

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1997年第2期10卷 88-92页

作者： J. H. Xing(Department of Physics, Liaoning University, Shenyang 110036, China)H.L. Huang(Department of Electronic Science and Engineering, Liaoning University, Shenyang 110036, China) Liaoning Univ Shenyang China

The effect of the dielectric mismatch between the well and the barrier materials on the binding energies of shallow donor has been investigated in Inx Ga1-xAs/GaAsstrained quantum well. The binding energies as a function of the well widths and impurity positions in the well and the barriers are obtained by using a variational method. Calculation results show that the effect of the dielectric mismatch is quite sizable and such effect is larger for off-center impurity positions,but the effect of the lattice mismatch is small in general.

关键词： quantum well shallow donor binding energy

Realization of Fixed Point Sets

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 1996年第1期12卷 71-76页

作者： Zhao Xuezhi Department of Mathematics Liaoning University Shenyang, 110036 China 辽宁大学数学系辽宁沈阳

Let f: X→X be a selfmap of a compact connected polyhedron, and A a nonempty closed subset of X. In this paper, we shall deal with the question whether or not there is a map g: X→X homotopic to f such that the fixed point set Fixg of g equals A. We introduce a necessary condition for the existence of such a map g. It is shown that this condition is easy to check, and hence some sufficient conditions are obtained.

关键词： Fixed point sets Nielsen number Local cut points Jiang group

Prediction of the thermodynamic properties of 1-alkyl-3-methylimidazolium lactate ionic liquids [C_nmim][Lact](n=2,3,4,5,and 6) by parachor

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2010年第12期53卷 2564-2570页

作者： FANG DaWei 1,3,TONG Jing 2,GUAN Wei 2,WANG Han 2 & YANG JiaZhen 1,3 1 Institute of Rare and Scattered Elements Chemistry,Liaoning University,Shenyang 110036,China 2 College of Chemistry,Liaoning University,Shenyang 110036,China 3 Key Laboratory of Rare and Scattered Elements,Liaoning Province,Shenyang 110036,China Institute of Rare and Scattered Elements Chemistry Liaoning University Shenyang China Key Laboratory of Rare and Scattered Elements Liaoning Province Shenyang China College of Chemistry Liaoning University Shenyang China

An ionic liquid (IL) based on lactate,1-butyl-3-methylimidazolium lactate ([C4mim][Lact]),has been prepared and characterized by 1H nuclear magnetic resonance (NMR) spectroscopy and differential scanning calorimetry (DSC).Since the IL can form strong hydrogen bonds with water,trace water is a problematic impurity in the *** the standard addition method (SAM),the density,refractive index and surface tension of [C4mim][Lact] were measured in the temperature range (308.15 to 343.15 ± 0.05) *** the basis of the experimental data,the parachor and molar volume for [C4mim][Lact],and the molecular volume V m,surface tension γ,molar enthalpy of vaporization △lgHm 0,refractive index n D,and the thermal expansion coefficients,for the homologues [Cnmim][Lact] (n=2,3,4,5,and 6) were estimated using semi-empirical *** estimated values are in good agreement with the experimental data.

关键词： parachor lactate ionic liquid density surface tension refractive index

Studies on the Absorption Spectra of Aqueous L-Tyrosine and Its Application

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1996年第12期7卷 1117-1120页

作者： Jia Zhen YANG Zi Fu ZHANG Jun LIU(Department of Chemistry, Liaoning University, Shenyang 110036) Department of Chemistry Liaoning University Shenyang 110036

The absorption spectra of agueous L-tyrosine at various total ionic strengths were measured by UV-240 spectrophotometer at 298.2+/-0.2K and the standard third dissociation constant of L-tyrosine was determined from th... 详细信息

关键词： Studies on the Absorption Spectra of Aqueous L-Tyrosine and Its Application