Huang Shukun Liu Qiang Zhang Hangbo Xie Laixian
Abstract:The adsorption characteristics of 1. 4-butynediol at dropping mercury electrode (DME) were studied by electrocapillary curves, differential capacity curves and semiempirical SCFMO method (CNDO/2). The atomic charge distribution in the molecule supports it
Abstract:LC(linear chain)mechanism is put forward for studying degradation of ZnO varistors. LC mechanism suggests that at the begining of the degradation ion migration' lower the barrier height,and that when the barrier height decreases to some extent, VC(varisto
Abstract:"Switched current" is a new analogue sampled data signal proressing technique which can be implemented without linear floating caparitors. This feature enables signal processors to be integrated in a stundard digital VLSI process. The application of SI te
Abstract:A nonlinear analysis metchod, based on nonlinear continuum mehanics and stress-resultant yield surface plastic flow rule,is successfully applied to the large deformation elasto-plastic analysis of the ultimate strength of plane steel frames. 4 plane steel
Abstract:In this paper the main mechanisms of eliminating COD and LAS in the wastewater of synthetic detergent by electrolytiv locculation treatment were studied. The primary technological conditions for the electrolytic flocculation treatment, which makes the eff
Abstract:Using the competitive capacity-trend chart,the paper has carried out dynamic analysis for the tendency of competitive capacity of China' s electronic product export in the period of the seventh five year plan. A quantitive analysis for various factors eff
Abstract:This article establishes for the export industroes the index system of the assessment and disscusses the steps for using DEA model. In addition it also sets up a relative assessment model for the eport industries. Practice showsthe model is more satisfact
Abstract:In this paper we obtain some algebraic criteria for unifrom stability, unifromly asymptotic stabity and instability of a class of linear systems of total time lag with variable coefficient by using Liaprnov-Razumikhin theorems.
Abstract:In this paper we investigate the closed orbits not nullhomotopic for a class of dynamic systems on the cylinder. Some sufficient conditions, necessary and sufficient conditions for the existence and uniqueness or non-existence of closed orbits of this kin
Abstract:In this paper,the synthesis method is used to calculate the free vibration of tall building structure with large open space at ground floor level. Several calculation formulas for this kind of free vibrations are derived. Two numerical examples are given
Yu Jianshe Huang Lihong Qian Xiangzheng
Abstract:本文研究广义Lienard系统x=(y),y=—(y),f(x)—g(z)闭轨的存在性问题.获得了保证此系统存在闭轨的两组充分条件.在我们的定理中f(x)允许无限次变号,特别在我们的定理2中,去掉了以往关于Lienard系统极限环存在性结果中f(0)<0(或>0)的常设条件.
Abstract:Let X_1, X_2,...X_n be independent and identically distributed samples deawn from a population x with distribution F. The estimation of the probability P(X> E(X))=1-F(E(X)) is discussed in this article. Some strong consistent estimators are proposed, and
Abstract:In this paper, we consider the inverse problems for a kinds of normal matrices. Some necessary and sufficient conditions for existence of solution of these problems are given. The expression of the general solution is given.
Zhang Qingying Chen Xiaolin Que Jianzhong
Abstract:We use the boson surface delta interaction as the effective interaction be. tween two bosons and the boson configuration mixing wave function to study energy spectra of nuclei of three bosons. The agreement between the theoretical results and the observed
Wei Wanzhi Li Yushan Yao Shouzhuo
Abstract:The calibration technique of nonparametric estimation combined with least squares is introduced, which can be used to quantify mixtures of analytes when the theoretical calibration model of a system is unknown or departs from the true behavior of the syst