微机通用人事数据管理系统的开发与实现

介绍了一个《微机通用人事数据管理系统》的开发与实现，对其总体结构、运行环境、主要功能及设计特点进行了较详细的论述．     

改进的模糊预测控制算法及其在CSTR过程中的应用

A finite horizon predictive control algorithm,which applies a saturated feedback control law as its local control law,is presented for nonlinear systems with time-delay subject to input constraints.In the algorithm,N free control moves,a saturated local control law and the terminal weighting matrices are solved by a minimization problem based on linear matrix inequality(LMI) constraints online.Compared with the algorithm with a nonsaturated local law,the presented algorithm improves the performances of the closed-loop systems such as feasibility and optimality.This model predictive control(MPC) algorithm is applied to an industrial continuous stirred tank reactor(CSTR) with explicit input constraint.The simulation results demonstrate that the presented algorithm is effective.     

金属密封球阀球体与阀杆接触部位的优化设计

以金属密封球阀中易产生破损的球体与阀杆接触部位为例,采用有限元分析软件An—Sys,对提出的5种设计方案进行了分析和比较,得到了最优化的设计方案,表明有限元分析方法在金属密封球阀优化设计中的有效性。     

论“有心运动”的起源与发展

应用ｋｅｐｌｅｒ定律、Ｎｅｗｔｏｎ定律和Ｂｉｎｅｔ方程，推导出“万有引力”定律．并依此简述在天体力学和近代物理学中的应用．