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EXISTENCE AND NON-EXISTENCE OF GLOBAL SMOOTH SOLUTIONS FOR QUASILINEAR HYPERBOLIC SYSTEMS~*

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Chinese Annals of Mathematics 1988年第3期9卷 372-377页

作者：林龙威郑永树 Department of Mathematics Zhong Shan University Guangzhou Guangdong China Deparment of Mathematics Hua Chiao University Quanzhou Fujian China

Consider initial value probiom vt-ux=0, ut+p（v）x=0, （E）, v（x, 0）=v0（x）, u（x, 0）=u0（x）, （I）, where A≥0, p（v）=K2v-γ, K>0, 0<γ<3. As 0<γ≤1, the authors give a sufficient condition for that （E）, （I... 详细信息

关键词： EXISTENCE AND NON-EXISTENCE OF GLOBAL SMOOTH SOLUTIONS FOR QUASILINEAR HYPERBOLIC SYSTEMS der QHS

EXISTENCE AND INVARIANCE FOR CONVECTION, DISPERSION, REACTION SYSTEMS WITH PRESSURE

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Acta Mathematica Scientia 1992年第4期12卷 443-456页

作者：谢春红何太平白国红 Dept. of Math. Nanjing Univ. Nanjing 210008 China

In this paper, we consider the initial boundary value problem of Convection-Dispersion-Reaction system which arise in solute transport or thermal transport in groundwater. Also, we prove the existence of the classical... 详细信息

关键词： HHI DISPERSION EXISTENCE AND INVARIANCE FOR CONVECTION der

Boolean Approach to Planar Embeddings of a Graph

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Acta Mathematica Sinica,English Series 1989年第1期5卷 64-79页

作者：刘彦佩 RUTCOR Rutgers University USA The permanent address: Institute of Applied Mathematics Academia Sinica Beijing China 100080

The purpse of this paper which is a sequel of "Boolean planarity characterization ofgraphs" is to show the following results. （1） Both of the problems of testing the planarity of graphs and embedding a planar graph into theplane are equivalent to finding a spanning tree in another graph whose order and sise are bounded by alinear function of the order and the size of the original graph, respectively. （2） The number of topologically non-equivalent planar embeddings of a Hamiltonian planar graphG is τ（G）=2;,where c（H）is the number of the components of the graph H which is related to G.

关键词： der tree Boolean Approach to Planar Embeddings of a Graph

THE GENERAL INITIAL-BOUNDARY VALUE PROBLEMS FOR LINEAR HYPERBOLIC-PARABOLIC COUPLED SYSTEM

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Chinese Annals of Mathematics 1986年第4期7卷 408-424页

作者：李得宁 Department of Mathematics and Mechanics Nanjing Institute of Technology Nanijing China

In this paper, the author considers the general initial boundary value problem of hyperbolic-parabolic coupled system and gives the normal form of boundary conditions, sufficient and necessary for the BVP and the conjugate BVP to be weLl-posed. Furthermore, the author proves the existence of differentiable solution in Sobolev spaces of high order.

关键词： der THE GENERAL INITIAL-BOUNDARY VALUE PROBLEMS FOR LINEAR HYPERBOLIC-PARABOLIC COUPLED SYSTEM 君一

A theoretical analysis and its application of the second order EC' reactions at microelectrodes under steady-state conditions

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Chinese Journal of Chemistry 1993年第4期11卷 308-315页

作者： ZHUANG,Qian-Kun CHEN,Hong-Yuan Department of Chemistry,Nanjing University,Nanjing,Jiangsu 210008 Department of Chemistry Nanjing University Nanjing Jiangsu 210008

With a new approach,the general current expressions of two typical second order catalytic reactions are obtained for disk,hemispherical and spherical microelectrodes under steady-state conditions.This approach is based on the concept of reaction layer.For the second order EC' reactions,we also discussed how it is possible to observe pseudo-first order or second order behavior.This consideration allows the study of the fast chemical reactions and systems where the bulk concentrations of the reactants are nearly equal.Regeneration of Fe^(3+)(EDTA) with H_2O_2 was selected as an example of a rapid catalytic reaction.

关键词： der A theoretical analysis and its application of the second order EC reactions at microelectrodes under steady-state conditions

Theoretical studies of rovibrational spectrum and potential energy function for Ar-N_2 complex

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Chinese Science Bulletin 1997年第1期42卷 43-46页

作者： YAN Guosen, XIE Junkai and XIE DaiqianDepartment of Chemistry, Sichuan University, Chengdu 610064, China Department of Chemistry Sichuan University Chengdu China

THE Ar-N2 complex plays an important role in atmosphere chemistry. Recently, the potential energy functions （PEF） CPV, BTT, MMSV, M3SV, MMSV’ have been determined by comparing the relevant experimental information, such as the molecular beam scattering measurements, virial coefficient data, bulk transport and relaxation phenomena, pressure-broadening and shift of spectroscopic infrared and Raman lines. The pure rotational spectrum of the Ar-14N2, Ar-15N2, and Ar-14N 15N isotopomers have been measured by Jager

关键词： potential energy function van der Waals vibrational states intensity and isotope effects.

BIFURCATION PROBLEMS OF MULTIPARAMETER AND MULTIBRANCH AND THEIR APPLICATIONS

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Acta Mathematica Scientia 1990年第1期10卷 1-19页

作者：张承钿李开泰 Inst for Comput. & Appl. Math. Xi'an Jiaotong Univ. Xi'an China

This paper deals with the bifurcation problems of multiparameter and multibranch and their approximations. It derives general approximation results of solution branches in the neighbourhood of a singular (limit, turning or multibranch) point, and shows that turning and multibranch points are bifurcation points. The abstract theories are applied to a mixed finite element approximation of stationary Navier-Stokes equation.

关键词： Th BIFURCATION PROBLEMS OF MULTIPARAMETER AND MULTIBRANCH AND THEIR APPLICATIONS ID De der 一刀

REGULARITY PROPERTIES OF AN IDENTIFICATION PROBLEM FOR GEOTHERMAL RESERVIOR EXPLOITATION

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Acta Mathematica Scientia 1992年第1期12卷 1-6页

作者：戴淑环 Dept. of Math. Jilin Univ. Changchun 130023 China

The problem of determining the pass on heat coefficient of the water-bearing stratum in geothermal reservior exploitation is investigated using the regularised output-least-square formulation. The regularity propertie... 详细信息

关键词： REGULARITY PROPERTIES OF AN IDENTIFICATION PROBLEM FOR GEOTHERMAL RESERVIOR EXPLOITATION der

Bibliography of Science and Technology of Rare Earths Published in China (1990)

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Journal of Rare Earths 1992年第1期10卷 77-81页

Application287 Status of applications of rare earth metals to precision alloys,Zhong Qiunuan,Rare Metals,1990,9(1),69.288 Effect of Zr and Y on the mechanical properties and the microstructure of Ti-AI-Sn-Nb-Mo-Si Alloy,Qin Kuiqinget al.,Rare Metals,1990,9(1),39.289 Coprecipitated AO/Y-PSZ superfine powder,Wang Zeming,Refractories,1990,24(6),20.290 Realizing the application of RE in malleable iron,Zhang Zhaoyun et al.,Foundry Technology,1990,(2),30.

关键词： La der Bibliography of Science and Technology of Rare Earths Published in China