Rectangular Cover System of Manifold Method and Its Auto Mesh Algorithm   总被引：2，自引：0，他引：2  

CAI Yong chang  ZHANG Xiang wei 《保鲜与加工》2001,(1):42-46

In contrast to the finite element method, another form of numerical method which is based on the using of rectangular math covers in manifold method is proposed. In this method, the element data is not a necessary in the input data files and it can be incorporated with the CAD technology conveniently. The theory and application of the method are discussed and the auto mesh algorithm of the cover system is also given in this paper. The numerical examples indicate that the method and the algorithm are accurate and effective.  相似文献   

A Study on the Reduction of Hexavalent Chromium Ion in the Process of Sintering and Ironmaking     

Li Zushu Xu Chushao Chen Guangbi 《保鲜与加工》1997,(5):119-124

The basic principle of using chromium leach residue as melting flux of blast furnace is introduced in this paper.The reduction thermodynamics of Na 2CrO 4 and chromium oxides in the process of sintering and ironmaking is studied,and the simulating experiments in the laboratory and industrial experiments in 600 m 3 blase furnace are carried out.The results of thermodynamical study and experimental study show that hexavalent chromium ion in the burden can be well eliminated in the process of sintering and ironmaking.  相似文献   

Unique Property Continuation and Compact Imbodding and Nonlinear Elliptic Equations     

He Chuanjiang 《保鲜与加工》1996,(1):136-138

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An Expert System Approach to the Computer Aided Design of Intelligent Controllers     

Tu Yaqing Li Zushu Huang Shanglian 《保鲜与加工》1993,(2):24-29

The idea for an expert system approach to the computer aided design of intelligent controllers (ESCAD1C) is discussed and the idea of two step modelling of an intelligent controller is presented on the basis of emulating human control behaviours to solve complex problems. The structure, functions and characteristics of ESCADTC system , and the design procedures of intelligent controllers are gived. The knowledge base and simulating functions for designing intelligent controllers are also described.  相似文献   

A Note on the K-Order Busy Period of a Stochastic Service System     

Sun Rongheng 《保鲜与加工》1993,(3):112-115

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A New Monte Carlo Method Based on State Analysis     

Ran Li Ren Zhen Huang Wenying 《保鲜与加工》1993,(6):21-26

A new Monte Carlo Method for system reliability evaluation is proposed in this paper. The repeated sampling of system states with relatively great probabilities is avoided in the simulation,thus the sampling efficiency is significantly improved. Besides,the negative correlations used in different trials can further reduce the estimated varinaces. The sparse matrix technique is employed to reduce the memory requirement and to save the computer time. Comparative studies show that the method proposed is of great value and the application to the IEEE reliability test system (power system) is successful.  相似文献   

A NEW TESTABILITY MEASURE OF DIGITAL CIRCUITS     

Xiang Dong 《保鲜与加工》1992,(6):98-105

A new scoap-like testability measure SCTM(a signal conflict oriented testability meaure) is presented, which represents not only the difficulty to control and observe the value of a node,but also the probability to cause signal conflict in the process of test generation. A parallel calculation scheme is offered, which speeds up the calculation m/2 times. Here m is the word length of a computer.  相似文献   

Optimality Conditions for Nonsmooth Extremum Problems in Topological Vector Spaces     

CHEN Xiu su  XIAO Zhi xiang 《保鲜与加工》2002,(4):47

Some new concepts of coneD_s convexity,coneD-s quasiconvexity,cone D-s pseudoconvexity,s right derivative of vector value mapping are proposed;and their related properties are discussed;the optimality necessary conditions and sufficient conditions for constrained extremum problem(VP)involving in cone D-s convex mapping are extablished;the relation between local optimal solution and global optimal solution;as well as the relation between weakly efficient solution and efficient solution for (VP) are derived;the corresponding results generalize the related results of classic convex programming.  相似文献   

Vibration Analysis and System Simulation for a Stalled Wind Turbine     

HE Jing  HE Yu-lin  JIN Xin  LIU Hua 《保鲜与加工》2007,(5):91-95

The aerodynamic characteristic of wind turbine is calculated by applying the Blade Element Momentum(BEM) theory.Also finite element mode analysis is done for the tower and the rotor.Then the multi-dynamic model of the wind turbine is built in Adams.Also the drive chain is calculated by applying state space method and programmed in Matlab/ Simulink.With that the combined simulation of vibration characteristics is carried out on the base of MATLAB/Simulink and ADAMS,in which the transmission effects and aero-elasticity coupling is fully considered.The results show that the method is able to simulate the vibration characteristic almost the same as software Bladed,which is well-known for analyzing performance and loads for the design and certification of wind turbines.  相似文献   

Computer-aided Classification and Identification of Traditional Chinese Medicine Herbal Formula     

CAI Cong-zhong  YUAN Qian-fei  XlAO Han-guang  LIU Xing-hu  KONG Chun-yang 《保鲜与加工》2006,(10):42-46

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