高容量SCM光纤通信技术中LD非线性噪声的分析

本文对LD发光特性的非线性在高容量SCM光纤通信系统中所引起的互调干扰作了理论性的分析研究,导出了一些有关的计算公式,为高容量光纤通信系统的设计提供了一些理论方面的依据。     

基于Netware IPX的后台实时通信

本文介绍了Ｎｅｔｗａｒｅｎ ＩＰＸ的特点及编程方法，详细论述了利用ＢＩＯＳ １ＣＨ中断实现网上工作站间的点对点、点对面的后台实时通信的思想和方法。     

The tree MVA algorithm

A new algorithm to solve product form queueing networks, especially those with large numbers of centers and chains, is presented. This algorithm is a Tree version of Mean Value Analysis (MVA). Tree MVA is analogous to the Tree version of Convolution developed by Lam and Lien. Like Tree Convolution, Tree MVA allows exact solution of large networks which are intractable with previous sequential algorithms. As with the sequential versions of Convolution and MVA, Tree MVA has better numerical properties than Tree Convolution. Further, Tree MVA avoids the computational complexity of sequential MVA in networks with several queue dependent centers. Thus, we consider Tree MVA to be the best algorithm for general product form networks.     

MultiExpress软件包分析及验证

本文根据对ＭｕｌｔｉＥｘｐｒｅｓｓ软件包的分析，就远程控制进行了简介，提出了它的实现方式并给出流程图，又在此基础上，建立Ｐｅｔｒｉ网模型，进行了验证。     

局部网中实时通信问题的研究

本文论述了在局部网中一种通用实时数据通信的实现技术，解决了网络环境下利用多缓冲区将实时数据从一台工作站的内存迅速转输到网上其它工作站内存的实时传输问题，并给如何实现ＷＩＮＤＯＷＳ环境下实时通信的编程方法。     

Rank formulas for certain products of matrices

For two matrix operations, calledquasi-direct sum andquasi-outer product, we determine their deviations from multiplicative behaviour of the rank. The second operation arises in the determination of the function table for so-called sum-type functions such as the Hamming distance. A consequence of the corresponding rank formula is, that the frequently used log rank can be a very poor bound for two-way communication complexity. Instead, as was shown in [9], a certainexponential rank gives often excellent or even optimal bounds.     

航天飞机的地面保障系统

美国航天飞机的地面保障系统包括航天跟踪和数据网(STDN)、网控制中心(NCC)、航天指控中心(MCC)和有效载荷操作控制中心(POCC)。本文综述上述各部分的组成、任务及它们之间的关系,并就我国载人航天测控通信网的操作控制中心的建设提出了基本看法。     

分布式电梯远程监控系统的设计

本文介绍了一种基于CAN总线和公众电话交换网的分布式电梯远程监控系统。详细阐述了系统的结构配置、通信方式和各部分的功能。经对电梯进行实时监控证实该系统稳定，性能良好，实时性高。     

FK6-700低弹机上的微机监测控制系统

本文对FK6—700低弹机的微机监测控制系统进行了介绍，该系统实现了数据的采集、存储、查询、召唤、打印报表和异常报警等功能。