Abstract:It was showed that a generalized algebraic lattice is isomophic to the closed set lattice of some topological space if and only if it is additive.Thus an additive generalized algebraic lattice will play the same roll in topology as a traditional algebra

Abstract:The least squares solutions of inverse problems for D anti symmetric matrices on the linear manifold was discussed,and the general expression of the solution was obtained.Moreover,the necessary and sufficient conditions of the solvability and the expre

Abstract:Compared with FEM, the Element free Galerkin method (EFGM) possesses notable advantages, such as requiring simple data, having higher accuracy and higher order continuity. These advantages are determined by moving least squares (MLS) approximations adopt

Abstract:A percise solution to the elastic elliptical inhomogeneity problem under general antiplane loads was provided.By combining the theory of sectionally holomorphic function,Cauchy model integral,the analysis of the singularity of complex stress function and

Abstract:In view of cracking phenomena of the floorslabs in frame tube structures,the idealized models were adopted to carry out the parameteric calculations for the stresses and the deformations of the slabs subjected to the action of the differences between the

Abstract:A fast vector transfer algorithm for the computation of Rayleigh wave dispersion curves in multilayered media was presened based on axisymmetric cylindrical Rayleigh waves.The dispersion equation is similar to Menke's E vector up transfer form.The up t

Abstract:The pressure baking is an effective method for preparing c/c composite of high density and high strength.The optimized initiale pressure and initiale temperature of pressing,the curve of ascending temperature and the highest temperature of pressure taking

Abstract:The deep drawing process of the steel polypropylene (PP) steel laminated sheet was simulated by the updated elasto plastic Lagrange finite element formulation. The development of the plastic strains in the steel sheet of the laminate was revealed, and

Abstract:The mechanism and characteristic of super high speed grinding, and the technology and development of super high speed grinding were introduced. The mechanism and process of super high speed grinding was analyzed. The technology about manufacturing the spi

Abstract:The high speed large power precision motorized spindles are core components of high speed NC machines. And the general development level of high speed NC machines is decided by the behaviors of the spindles to great extent. The developments of the tech

Abstract:An concept of Internet based computer aided industrial design in a case study of NC machine tools design was proposed. The method of research and the results of the experiments to assess the form and color information of machine tools were evaluated. Fr

Abstract:The grinding is the most important method for the machining of engineering ceramic. The reseach development of the surface/subsurface damage (such as surface/subsurface microcracks,surface residual stresses) in ceramic grinding was reviewed, analysed and

Abstract:Because of the high speed of the spindle,the strong cutting force, the high feed speed and the high speed rotating wheel,the high speed and super high speed grinding machine has the biggest harm during the processing. According to the method of the machi

Abstract:The multi chip split groove is suitable for high feed and efficiency drilling,the mathematical model for new multi chip split groove drill point is established to resolve the problem of grinding the drill with numerical controlled machine.The solving

Abstract:The highly precise and efficient NC machining for free form surface is one of most challenging problems that process engineers must face in real life. Some crucial technological problems in the NC machining for free form surface were discussed. The fact

Abstract:The thermodynamics and SO 2 equation consistency of reaction of sulfur fixation was analysed. It shows that the reaction impetus is big, and that the heat output of fixation sulfur is bigger than the absorption of heat when limestone is decomposed. The p

Abstract:把边坡定值分析法与可靠性分析法相结合，考虑土性参数的变异性和不确定性。在有限土性参数数据可供利用的条件下，由土性参数分布的3σ法则原理以及土性参数变异系数的公开报道值，取得可靠性分析数据，对粘土边坡稳定性和可靠性作了较为深入的研究评价，并探讨了土性参数的变异性、安全系数变异性和可靠性指标三者之间的内在联系以及粘土边坡稳定敏感性因素及其可靠度的一些规律。

Abstract:Through establishing single input single output identification mathematics model for the dynamic moisture performance of building envelopes by materials surface's air relative humidity input and materials moisture capacity ouput,the interrelation Z trans

Abstract:The wavelet analysis is adopted in degree of single freedom dynamic system. Using the wavelet analysis, the high frequency of dynamic loads is discarded according to the wavelet feature that can analyzes in time frequency domain, and the data of loads in

Abstract:Most of key escrow scheme believes escrow agency to be valid.A new key escrow scheme was presented which enables other escrow agency and KEC to restore the key part of key agency so that the system will work properly when certain key agency is invalid.

Abstract:There is a serious shortcoming in function optimization with GAs:althought they rapidly locate the region in which a global optimum exists,they locate the optimum with similar speed.A new GA with three new strategies-determined mutation,half determined Ha

Abstract:After comparing the price estimates from a stochastic rate model and those from a constant rate model, it is showed that the mean of the absolute pricing errors for the stochastic model is statistically greater than the mean for the constant model at th