基于平面直线图链的单调完全集的研究

计算几何中的链方法是平面剖分中一点定位的好方法，本文讨论了从任何平面直线图红正则化手续，进而构造链的单调完全集的方法和过程，这是用链方法进行一点定位的必要准备。     

Quantitative analysis on distribution of modifier in microstructure of SBS modified asphalt

A method was developed to make a quantitative analysis of the microstructure of asphalt modified with styrene-butadiene-styrene block(SBS) copolymer. Moreover, both mixed and branched SBS were employed in the preparation of modified asphalt. By sampling specimens from the top, middle, and bottom, a number of microscope slides were made and 400 times micro images were gained. Binarized with the software of MATLAB, the images then went to the process of distribution test, when four typical distributions were employed to investigate the distribution of modifi er spread in asphalt. The distribution characteristic and its parameter were both found. The results show that asphalt phase clearly obeys Poisson distribution, and its parameter, λ, is bond up with the condition SBS performs in. Based on this parameter, indexes can be set up to evaluate the structure of the mixture and its performance as well. Compared with that modifi ed with mixed SBS, the asphalt modifi ed with branched SBS has better performance but worse stability, for it is easier to segregate.     

IBM Token—Ring网的结构特点

本文综述了IBM Token-Ring环形网络的特点。尤其着重介绍了IBMToken-Ring网可与IBM大、中、小、微各类计算机、控制器和其它外设等连接,并实现数据通信和资源共享,以此来展示IBM Token-Ring网的可开发前景。     

SQL＊FORM与软件开发的研究

ＳＱＬ＊ＦＯＲＭ是ＯＲＡＣＬＥ数据库系统提供的软件开发工具，本文介绍了ＳＱＬ＊ＦＯＲＭ及如何利用ＳＱＬ＊ＦＯＲＭ开发研制应用软件，对利用其他软件工具开发应用软件也有一定的借鉴作用。     

软件加密研究

本文针对微型计算机，分析讨论了软件的保护措施，提出了两种文件的加密方法，并对两种方法进行了深入的研究。     

数据库系统与高级语言通讯

本文论述了关系数据库系统中的ＳＱＬ语言与高级语言间的通讯区的一般结构，并以ＯＲＡＣＬＥ和ＩＮＦＯＲＭＩＸ为例，对ＳＱＬＣＡ和ＳＱＬＤＡ进行了详尽的探讨。     

软件开发中的触发器设计

ＳＱＬ＊ＦＯＲＭ是ＯＲＡＣＬＥ关系数据库提供的软件生成工具。本文介绍的触发器设计是ＳＱＬ＊ＦＯＲＭ的精华之所在。正确使用和设计触发器，从而得到一个完美的ＦＯＲＭ，对于一个应用软件系统的开发是至关重要的。