ADSS光缆的力学计算

介绍了ADSS光缆的力学计算，给出了光缆弧垂、张力、应变和悬长等计算公式，并对普遍采用的“悬链线”和“抛物线”两种计算方法加以比较。     

我国有线电视的网络媒体价值

阐述有线电视网络媒体的特点，有线电视网络媒体面临的困境及解决办法，最后展望有线电视网络媒体价值。     

NEURAL NETS SPEED FLOW CALCULATION

Neural Nets Successfully Solve Complex Fluid Flow Problem. Much research is being done in the area of neural networks, and industry is actively seeking successful application to real world problems. We describe here a successful application. We have used neural networks to model complex coolant flow patterns, such as those encountered in design of hypersonic aircraft. Previous calculation methods, while reasonably accurate, are iterative and extremely time consuming. Our new approach uses a hierarchical neural network architecture to model coolant flow distribution in multiple heat exchanger panels. This method is direct, fast, and accurate.     

ATH在无卤阻燃聚乙烯电缆料中的应用研究

以EVA改性LDPE,以偶联剂改性ATH,通过一系列配方的研究和性能测定,认为可以设计出适合于电缆料用的无卤阻燃聚乙烯的配方。     

求解电缆自感系数的一个佯谬

用求自感系数的两个常用公式求解实心电缆自感系数时，如果不注意对公式中Φm及I的正确理解，将会得到不一致的“佯谬”结果。本文通过将实心电缆等效为许多细线圈的方法，用2种公式求解得到了一致的结果。     

Development of cable fault location method using fiber optic distributed temperature sensor

When ground-fault problems occur on a cable line, immediate fault location and restoration are required. Therefore, various new methods to locate the fault point instantaneously have been investigated to replace such conventional methods as the Murray loop method and the pulse radar method [1]. These methods require a long time to locate the fault point. One possible fault location method is to sense the temperature rise following a ground fault using a fiber optic distributed temperature sensor. Application of this method was found feasible through sensing the temperature rise at a ground-fault test using a thermocouple as a temperature sensor with test cables [4]. A power/optical composite cable was prepared experimentally and after verifying its thermal mechanical performance, the temperature rise at an incidence of a fault was determined and the anticipated performance was demonstrated in a ground-fault test. This article describes the outline of the test.     

市内通信电缆绝缘电阻特殊要求的实现和措施

本文对市内通信电缆的各生产过程进行分析、研究和控制 ,从而提出了解决绝缘电阻特殊要求的方法 ,以及改进的措施。     

基于有线电视网络平台视频点播技术的实现

通过对有线电视网络的频带划分、拓扑结构的介绍以及真视频点播 (T -VOD)技术对通信网络要求的分析 ,深入剖析T -VOD技术在有线电视网上的实现策略 ;另外通过对T -VOD系统以及N -VOD系统典型实现的体系结构和性能特点的分析 ,全面地总结了有线电视网上视频点播技术的实现方案 ,并最终提出有线电视网上实现双向数字业务的一种构想     

列车客车用低温发热电缆地面辐射供暖系统的实验研究

对不同地板结构和不同导线间距下发热电缆地面辐射供暖系统的热工性能进行了测试分析，考察了系统的稳定性和可靠性，给出了综合比较结果，分析了影响发热电缆地面辐射供暖系统热工性能的主要因素及其影响规律。     

连铸转炉钢包电力牵引车的研制

论述研制连铸转炉钢包牵引车的目的、意义、方案的选择及设计计算校核,对技术要点作出了明确阐述.