Abstract:In this paper,throush the analysis for microscopic void model the more realisticand simplified description of growth and nucleation of voids and softening function has been derivedfor isotropic and kinematical hardening materials.The damage evolution equation is embed into anew incremental endochronic elaStoplastic constitutive equation for large deformation,and a damageconstitutive equation has been got.The effect of void evolution on the constitutive equation is denoted by a softenins function w(f) and an it6m reflecting mat6rials plastic expand.A numerical algorithm and finite element program for large elastoplastic deformation of damage materinls are finished.Finally they has been applied to the analysis of the necking of tensile cylinder specimen.Thecomparison between the calculated results and the experimental data show satisfactory agreement.

Abstract:In this paper,the conception of bus voltage stability control area of local powersystem is presented,based on the practical criterion for voltage stability calculated by the real-timeinformation and the quasi-real time information form the power system.The method is test6d onIEEE-30-bus test system and results are satisfactory.

Abstract:The liquid superheat limit and critical radius of bubbles in homogeneous nucleateboiling are determined in the present paper by using density fluctuation theory of statistical theomodynamics.Taking water as an example,calculation was performed to predict the superheat limit of itunder different pressure.A detailed discussion on some important concepts concerned was made.

Abstract:Experimental Study on the effect of fine-granular fluidized bed's furnace surface roughness on (quasi) dispersion fluldhatinn properties was included in thiS paper.The particlesof diameter from 0.076 to 0.45 mm were used in the test.With different kinds of furnace linersand a resistant measuring device made by ourselves,the relations among surface roughness,the distribution and the thickness of fluidizating dead zone near the surface were got.Considering measuring results of coefficients of friction between fine particles and different kinds of furnaces,a theoretical analysis on the relation was made.The researching results showed that a rough surface might result in thicker fluidizd atate deadzone and lead to fluidization change from aggregative fluidizationinto dispersion fluidization more quickly.

Abstract:A three-dimentional thermal elastoplastic contact FE analysis model of solidifiedshell in moulds for continuous casting of thin slabs is set up, based on the known geometry of theshell and the temperature distribution in the shell. We in turn obtain the stress and Strain distributions of the solidified shells formed in lSP and CSP moulds,the gap distributions between the Shellsand the mould walls,as well as the curves of cracking index [1] in the shells,which provides afoundation for the design and control of technical parameturs for continuous casting of thin slabs.

Abstract:The conceptions of mother wavelet and complete wavelet system are introtuced.Their digital features are described in detail.The definitions of con ti n nons, discrete, and dyadic discrete wavelet transforms are given,and their inverse transforms are deduced with reference to thevector expressions in R2 space.

Abstract:Membership functions.formed with the characteristic values obtained by applying the continuous reaction time (CRT) theory from controls and heptic encephalopthy and proposedin this paper.whith these membership functions,the CRT data to be diagnosed are calculated in advance,and then discriminated by BP meural network to differentiate patients with or without braindysfunction.The troubles of low accuracy and efficiency,encountered in training BP network withfuzzy samples.scattered data and extended samples,are solved.

Abstract:Adaptive simulation algorithm is an effective and practical method for simulating stiff system,and the key to realize this algorithm is stiffness recognisation.This paper,based onthe previous recognizing methods,introduces fuzzy set theory in them to develop a more accurate approach which is successfully used in adaptive simulation algorithm.

Abstract:The FCBP(Fuzzy calculating BP) algorithm which is proposed by this paper hasovercome the sensitivity for samples,reduced the number of input layer's samples,lightened the burden of input layer.it is suitable to fuzzy inference and pattern recognition.

Abstract:We present an adaptive algorithm for sequential diagnosis in the PMC model,which can directly identify a faulty processor without first identifying a fault-free processor.

Abstract:An interval relaxation method to solve system of nonlinear equations is discussed in this paper.The conditions is weaker than the related reference.But the conclusion is thesame.Besides,two sufficient conditions are given for the existence of solutions.A speed comparasiontheorem is prsented,too.Finally,an illustrative example is also given.

Abstract:The structure of the slender hammering stem with elastic supporting device isdesigned in this paper,a multiple degree of freedom vibration dynamic model is set up.With an example of the 2T air-hydraulic hammer,the theoretical analysis and computation are given.

Abstract:A raseach has been done on the possibility of producing nitriochumic acid fromweathered coal of Nantong,Sichuan,oxidised by nithic acid.The optimun reacting conditions,whichare found through the way of orthogonal experiment,are suggested as follows:concentration ofHON3 35%,rate of HON3 to coal 3.5,reacting take 15 min,and reaction temperature 369 K. Thecomposition of product is Wf 2. 91 %;Ag 14.06%;HAg 78.28%;Ng 1.62%.

Abstract:The poper proposes an efficient algorithm based on HOPFIELD neural networksto solve the crossing numbers problem of graph theory,and with the algorithm we successfully realized the automatic generation of electric power system tidal current and impedance charts.A technique using logic coordinate system to create,export very large scale graph is introduced in addition.

Abstract:A new acquisition idea with high resolution for fringe image is proposed and therelated technique methods are also discussed. By using this technique,a ftinge image with high resolution,high locking capability and datum compression can be obtained.

Abstract:This paper describes the advanced technologies applied by the author on the development of client applications using Power Builder.The main topics are focused on the manipulations of intelligent object,Data Window of Power Builder.

Abstract:The Systematic Computer-Aided Design(SCAD)method is presented by combining the Systematic Engineering Design method with CAD technology in this paper. Particular implementing scheme of the four phases included in SCAD,Computer-Aided Product Planning(CAPRP),Computer-Aided Conceptual Design (CACD),Computer-Aided Embodiment Design(CAED)and Computer-Aided Detail Design(CADD),are studied.So the basic theoretical framework of SCAD technology is built.

Abstract:This paper presents a new disease diagnosis approach with a woundless testingtechnique.We fetch the data from acupoints in human ears,and then analyse their statistic and frequency response features by computsr in order to find out their characteristic functions.By studingthe correlation between these functions and human diseases,we can diagnose which disease the patient has been suffered.

Abstract:In this paper,a method used to simulate the squirrel-cage motors with rotor-barand end-ring faults is presented. In our analysis,the stator is still represented by three-phase windings,but each loop of the rotor is considered as a single-phase winding,so it is convenient to describethe situation of the motor with any number of broken rotor-bar and end-ring.Compared with othermethods,the method of this paper can be used to analyse both the steady-stats and the transient stateof cage motor with rotor faults.

Abstract:This paper introduces the pricing principle of the spot price and compares it withthe current electrical price systems in China.

Abstract:The Yanmanshu iron concentration has a property of prevention disintegrationwhich has been proved by test.The mechanism of preventing disintegration is also given for preliminary study in this paper.