Recent Advances in Research of the Distributed Parameters Control System with Moving Boundary

This paper presents a brief summary of the three development stages of investigation on the transpiration cooling and its control for aircraft, missiles and electromagnetic gun, then the control problem of the distributed parameters system with a moving boundary is derived. It introduces the mathematical model of the transpiration cooling control, its control characteristics, and the present situation of the experimental and theoretical study on this problem. This paper also describes the main study results and the existing problems. The prospective application is also reported. The major references in every developing stage are listed systematically for further study.     

煤矿排水设备选型设计的计算机优化程序

本文介绍了在矿井服务年限内,利用能耗低、装置效率高的原则,编制了煤矿排水系统方案设计和初步设计的全部电算优化程序.重点介绍了程序的组成、功能、粗框图;目标函数的选择;技术数据的处理及必要的说明.本程序简称为〈PS—WP CAD〉.是在APPLEⅡ型微机上调试通过的,并经过不同的矿井实例上机计算,效果均良好.     

AN OPTIMAL DESIGN OF RING SPINNING SPINDLES USING PROGRAM SAP84

In this paper, natural frequencies and vibration modes of spindl D1203 are calculated by us-ing structural analysis program SAP84. It is found that the second natural frequency of D1203spindle is too close to the range of working speed. In order to raise the second natural frequencyand to reduce the vibration noise, simple optimal design of several structural parameters are alsodiscussed by means of the orthogonal design method. It is shown that the better design is toshorten the length of the spindle blade appropriately and to increase the elasticity of its uppersupport.     

高校实验材料与低值易耗品的量化管理

本文从管理工程学的角度阐述了高校实验材料与低值易耗品实行量化管理的重要意义,并针对目前这方面所存在的问题,提出了较为可行的实施量化管理的具体办法.     

油田含油污水过滤处理的PC控制系统

介绍了采用ＯＭＲＯＮ可编程序控制器在油田含油污水处理中的应用。在分析消化国外进口设备的基础上结合现场实际工艺状况，研制四罐过滤系统的电控设备。     

System Dependence Graph Construction for Aspect Oriented C＋＋

This paper proposes an extended system dependence graph called AspectSDG to represent control and data dependences for AspeetC＋＋ programs, and presents an approach for the construction of AspectSDG. This approach decomposes aspect-oriented programs into three parts： component codes, aspect codes, and weaving codes. It constructs program dependence graphs （PDGs） for each part, and then connects the PDGs at call sites to form the complete AspectSDG. The AspectSDG can deal with advice precedence correctly, and represent the additional dependences caused by aspect codes. Based on this model, we introduce how to compute a static slice of an AspectC＋ ＋ program.     

类氢原子和同调谐振子坐标幂函数平均值〈nα│x~s│nα〉快捷计算方法

从同调谐振子及类氢原子坐标幂函数平均值〈nα│xs│nα〉的邻居关系出发,以极为简洁的算法展示了坐标幂函数平均值〈nα│xs│nα〉快速计算过程,给出了用计算机系统高效计算波函数和〈nα│xs│nα〉所需M athem atica源程序代码.     

散转程序设计分析

本文就散转程序设计进行了较为系统、深入分析,并给出程序流程图和软件程序.     

新型程控信号源设计

微机型继电保护测试仪要求输出多种参数连续可调的信号.为此,设计了一种基于两级D/A转换的程控信号源,此信号源根据要求可以自动调节输出波形的频率、幅值;结合例子分析此信号源的原理及特点.     

游泳竞赛通用计算机编排记录系统的研制与应用

通过对游泳竞赛编排记录工作的系统分析，按照国际游泳竞赛规则和我国游泳竞赛的规范，研制了一个通用型计算机编排记录系统．该系统适用于各种类型、各种规模的游泳竞赛活动，可以大大提高裁判工作的效率和准确性，变繁杂琐细的人工作业为计算机的自动管理，为游泳竞赛的组织和裁判工作提供了极大的便利．