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FINITE ELEMENT SIMULATIONS FOR COMPRESSIBLE MISCIBLE DISPLACEMENT WITH MOLECULAR DISPERSION IN POROUS MEDIA

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Applied mathematics(A Journal of Chinese Universities) 1996年第1期11卷 17-32页

作者： CHEN HUANZHEN LI QIAN department of mathematics, Shandong teacher’s University, Jinan 250014

We consider a nonlinear parabolic system describing compressible miscibledisplacement in a porous medium [5]. Continuous time and discrete time Galerkinmethods are introduced to approximate the solution and optimal H^1 error estimatesare obtained. One contribution of this paper is a demonstration of how moleculardispersion can be handled.

关键词： Finite element method molecular dispersion compressible miscible displacement

HB(N5)3M(M=Li,Na,K,and Rb):A new kind of pentazolides as HEDMs

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Progress in Natural Science:Materials International 2009年第1期19卷 41-45页

作者： Jian Cui a,Yan Zhang a,Fengjuan Zhao a,Jing Yang b,Gangyi Shen a,Yu Xu a,a Chinese Minority Traditional Medical Center,college of Live and Environmental Sciences,Central University for Nationalities,Beijing 100081,china b department of Chemistry,Tangshan teacher’s college,Tangshan 063000,china Chinese Minority Traditional Medical Center College of Live and Environmental Sciences Central University for Nationalities Beijing 100081 China department of Chemistry Tangshan Teacher’s College Tangshan 063000 China

HB(N5)3M(M=Li,Na,K,and Rb) have been investigated as potential high-energy density materials in the present paper by means of density functional *** all show kinetic stabilities as to the breakup of N5 *** kinetic stabilities decrease in the order of Li,Na,K,and *** to HB(N5)3K and HB(N5)3Rb,HB(N5)3Li and HB(N5)3Na have higher transition state barriers and are of significantly higher energy content,and thus they are suggested to be more practical and suitable as potential high-energy density materials.

关键词： DFT Pentazolide HEDM

THE CHARGE AND DISCHARGE CHARACTERISTICS OF THE POLYANILINE CELL

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Chinese Science Bulletin 1989年第4期34卷 295-298页

作者：穆绍林 department of Chemistry Yangzhou Teacher's College

To use conducting polymer as an electrode material in a cell instead of a metal electrode is one of the interesting questions for study. In addition to a low density, in the processes of electrode reaction, the parent for a conducting polymer is not soluble, and there is no precipitate on the electrode surface. These characteristics are very important for recharged cells, whereas a metal electrode does not have this nature.

关键词： polyaniline cell recharge cycle.

Molecular dynamics simulations on the structures and properties of ε-CL-20-based PBXs ——Primary theoretical studies on HEDM formulation design

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Science china Chemistry 2007年第6期50卷 737-745页

作者： XU XiaoJuan1,2, XIAO JiJun1, HUANG Hui3, LI JinShan3 & XIAO HeMing1 1 department of Chemistry, Nanjing University of Science and Technology, Nanjing 210094, china 2 department of Chemistry, Yancheng teacher’s college, Yancheng 224002, china 3 Institute of Chemical Materials, china Academy of Engineering Physics, Mianyang 621900, china department of Chemistry Nanjing University of Science and Technology Nanjing China department of Chemistry Yancheng Teacher’s College Yancheng China Institute of Chemical Materials China Academy of Engineering Physics Mianyang China

Five polymer bonded explosives(PBXs)with the base explosive epsilon-CL-20(hexanitrohexaazaisowurtzi-tane),the most important high energy density compound(HEDC),and five polymer binders(Estane 5703,GAP,HTPB,PEG,and F_(2314))were *** dynamics(MD)method was employed to investigate their binding energies(E_(bind))< compatibility,safety,mechanical properties,and energetic *** information and rules were reported for choosing better binders and guiding formulation design of high energy density material(HEDM).According to the calculated binding energies,the ordering of compatibility and stability of the five PBXs was predicted as epsilon-CL-20/PEG < epsilon-CL-20/ Estane5703 ≈ epsilon-CL-20/GAP < epsilon-CL-20/HTPB < epsilon-CL-20/F_(2314).By pair correlation function g(r)analyses,hydrogen bonds and vdw are found to be the main interactions between the two *** elasticity and isotropy of PBXs based epsilon-CL-20 can be obviously improved more than pure epsilon-CL-20 *** is not by changing the molecular structures of epsilon-CL-20 for each binder to affect the *** safety and energetic properties of these PBXs are mainly influenced by the thermal capability(C_p^(deg))and density(p)of binders,respectively.

关键词： high energy density material (HEDM), hexanitrohexaazaisowurtzitane (CL-20), polymer bonded explosives (PBXs), molecular dynamics (MD), compatibility, safety properties, mechanical properties, energetic properties

TGF-β1-promoted epithelial-to-mesenchymal transformation and cell adhesion contribute to TGF-β1-enhanced cell migration in SMMC-7721 cells

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Cell Research 2003年第5期13卷 343-350页

作者： ZHEN XU, MIN XIONG SHEN, DONG ZHU MA, LI YING WANG, XI LIANG ZHA Key Laboratory of Glycoconjugate Research, Ministry of Public Health, department of Biochemistry and Molecular Biology, Shanghai Medical college, Fudan University, Shanghai 200032, china 2 Medical School, Huzhou teacher’s college, Huzhou Zhejiang 313000, china department of Biochemistry and Molecular Biology Key Laboratory of Glycoconjugate Research Ministry of Public Health Shanghai Medical College Fudan University Shanghai China Medical School Huzhou Teacher's College Huzhou Zhejiang China

Transforming growth factor-b 1 (TGF-β1), a multi-function polypeptide, is a double-edged sword in cancer. For some tumor cells, TGF-β1 is a potent growth inhibitor and apoptosis inducer. More commonly, TGF-β1 loses its growth-inhibitory and apoptosis-inducing effects, but stimulates the metastatic capacity of tumor cells. It is currently little known about TGF-β1-promoted cell migration in hepatocellular carcinoma (HCC) cells, let alone its mechanism. In this study, we found that TGF-β1 lost its tumor-suppressive effects, but significantly stimulated cell migration in SMMC-7721 human HCC cells. By FACS and Western blot analysis, we observed that TGF-β1 enhanced the expression of α5β1 integrin obviously, and subsequently stimulated cell adhesion onto fibronectin (Fn). Furthermore, we observed that TGF-β1 could also promote SMMC-7721 cells adhesion onto laminin (Ln). Our data also provided evidences that TGF-β1 induced epithelial-to-mesenchymal transformation (EMT) in SMMC-7721 cells. First, SMM

关键词： TGF-β1 cell migration epitheIial-to-mesenchymal transformation α5β1 integrin.

THE STRATEGICAL ROLE OF THE VISUAL SYSTEM IN THE CHINESE TEFL CLASSROOM

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玉溪师范学院学报 1997年第5期13卷 64-70页

作者： liu QixuanEnglish department,Yuxi teacher’s college,Yunnan (653100),china

This thesis,based on a strategical undertanding,explores the functional modes of the visual sys-tem in the growth and development of English psychology in Chinese *** hypthesis is that the visualsystem can be trategicdally employed for the cultivation of the cultivation of the target language psychology and for the effect *** a detailed delineation of the classroom visual experience,the ensured V1 mode is adopted inthe experiment testifying the hypothsis.A statistic analyis of the result shows that the visual experience,strate-gically constructed and made meaningful in the psychological growth and development,can be a solution to someof the existing problems in the Chinese TEFL classroom.

关键词： visual means psycholinguistic funcbons visual strategy

关于极小非幂零群的正规Sylow子群的换位子群的生成元集

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四川大学学报（自然科学版） 2004年第5期41卷 948-951页

作者：罗驰乐山师范学院数学系四川乐山614004

讨论了极小非幂零群的正规Sylow子群P的换位子群P′,确定了换位子群P′的一个生成元集.从而用简单的和纯群论方法得到换位子群P′的阶｜P′｜的上界,并进而得到不等式｜P′｜≤｜P｜1/3.此外,通过相关的本原单位根,给出了换位子群P′的... 详细信息

讨论了极小非幂零群的正规Sylow子群P的换位子群P′,确定了换位子群P′的一个生成元集.从而用简单的和纯群论方法得到换位子群P′的阶｜P′｜的上界,并进而得到不等式｜P′｜≤｜P｜1/3.此外,通过相关的本原单位根,给出了换位子群P′的阶｜P′｜达到这个上界的一个必要条件.

关键词：极小非幂零群正规Syllow子群换位子群生成元

Boundedness of the Solutions of a Second Order Nonlinear Differential System

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Chinese Quarterly Journal of mathematics 2003年第1期18卷 49-56页

作者： LIU Bing-wen,ZHONG Yi-lin,PENG Le-qun (department of mathematics, Changde teacher’s college, Changde 415000, china) department of mathematics Changde Teacher's College Chengde 415000

In this paper, author obtain sufficient condition for the boundedness of solutions of the second order nonlinear differential systemdxdt=y-φ(x), dydt=-yf(x)-g(x).(E)The result can be applied to the Liénard-type system, which substantially extends and imporves some important results associated with the same problems in the literatures [1—10] et al..

关键词： nonlinear differential system Liénard-type system solutions boundendenss

The Unconditional Stability for the Hyperneutral Type Constant Linear Control System with Delays (I)

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Wuhan University Journal of Natural Sciences 2001年第4期6卷 759-763页

作者： Li Ye-ping Meng Pei-yuan Zhou Guo-peng department of mathematics Xianning Teacher's College Xianning 437005 Hubei China

By means of the frequency domain method and the inequality analysis, we discuss the unconditional stability problem for the hyperneutral type constant linear control system with delays, and obtain some precise suffici... 详细信息

关键词： delays hyperneutral type unconditional stability