大型冷库、氨制冷系统气密性试验、试漏检测方法

主要叙述了硫绳燃烧法在氨制冷系统气密试验中检查泄漏的具体步骤及方法.     

热漏对联合动力循环性能的影响

分析旁通热漏对联合动力装置最优性能的影响。在连续流内可逆联合循环模型中加入一热漏项，建立了不可逆联合循环模型，导出其功率与效率间最佳关系、最大功率及其相应的效率界限和最大效率对应的功率界限。分析表明热漏对其最优特性有很大影响，所建立的模型可以更好地预测联合动力装置性能。     

大型回转式空气预热器密封间隙调整方法

针对大唐国际神头第二发电厂3号、4号炉空气预热器整套装置是属回转三分仓式结构，同类型设备在国内外普遍存在漏风大的现象，既影响整台机组的经济性，又缩短了设备使用寿命，经过三个阶段的深入探讨和调整，将漏风率降至6％左右，使其达到最佳经济安全运行范围，具体调整方法可供同类型设备参考。     

UCLA网络加速器路由表快速查找改进模型

论文针对网络服务的应用,研究了UCLA设计的网络加速器模型,发现UCLA网络加速器设计在某些情况下得到较多不合理的下一跳出口地址,减低了加速器的性能。通过增加运算符改进加速器的运算,减少了所查找的路由表的出口数目,能更准确地定位下一跳的位置,提高了加速器的效率。     

管道泄漏计算机在线检测系统及其算法实现

设计了管道泄满计算机在线检测系统的总体结构，提出了一种基于工况分析的逻辑判决故障检测算法，当输油管道工作状况不断发生改变时，这种方法能够动态估计管道运行数据的正常值范围，很好地解决输油管道泄漏的故障检测问题，结合GPS技术和负压波定位算法，大大提高了报警准确性和定位精度，现场测试结果和实际工业应用证明了该方法的有效性。     

Legacy system program transformation by Lyee methodology

Based on the comparative review of several approaches to legacy system conversion and revitalization, the Lyee methodology application for the issue is presented to clarify its idea, the associated procedure, and the implemented tools. It could be said that with the tools and manual developed by ICBSM&T, the mechanical transformation of the conventional program to a Lyee-structured one becomes possible as long as the programs are made in a procedure-oriented language. In addition to the program structure conversion, the Lyee methodology permits people to choose any application language in the transformed program. At the same time, quite a new approach related to the system conversion is introduced, in which the chunk of data extracted from an old program is edited to make a new conventional structure program that has a logical sequence instead of a Lyee type of declarative program. These features can be realized through the concept of LyeeBELT, which is a set of word-information about the attributes, formulae, and conditions for an independent data item.

The overall workflow of the legacy program transformation is shown in the following.

A critical part in its implementation is the feasibility study (pre-analysis) stage where necessary information is supposed to be secured, and an appropriate plan and policy about the system to be revitalized in the new system environment should be clarified so as to customize the tools accordingly. If the initial process is completed, the mechanical legacy system conversion will be realized by registering the parameters in the tool, and the reestablishment of business knowledge in the LyeeBELT will be enabled. With the regulated business logic on the LyeeBELT, the program maintenance afterwards becomes drastically simplified and stable without the ‘spaghetti’ problem, so that software evolution can be possible.     

北电ATM网络运维管理经验

北电ATM交换机的性能管理参数极为丰富，通过对其进行合理配置，可优化网络运行质量。文中介绍通过对北电ATM交换机上的Atmif和Aallces部件参数的合理配置，实现了SVC业务的优化路由选择，改善了仿真电路传输质量，并具体阐明了实际配置方法及注意事项。     

HL-2A装置真空室总体检漏

介绍中国环流器2号A偏滤器托卡马克装置真空室总装检漏及结果.根据其真空室特点设计了不同结构的检漏子系统,用氦质谱检漏仪、四极场质谱计与氦质谱检漏仪相结合的方法(双质谱法)分别进行零部件和真空室总体检漏,对有关检漏技术问题进行了讨论.     

减少机动车对居住小区环境干扰的几种方式

从道路规划上着手解决居住小区内日益增加的人车混杂问题,强调只要通过简单的方法就可以有效地规划居住小区内人车分流交通系统,或使居住小区内人车共存变得更加和谐.     

校园IP网络的分层设计与实现

IP路由设计是校园网络在逻辑实现上的核心,合理的IP路由设计会使网络具有较高的性能.根据校园网络的拓扑和流量分布情况,按照分层设计思想,通过应用VLSM,提出了校园网络IP分层寻址和聚合路由设计方法.在此基础上,结合常用路由协议,具体提供了聚合路由的实施策略.对有类路由协议RIP和IGRP、无类路由协议EIGRP和OSPF情况下的不邻接网络、子网粒度问题作了重点分析实现,从而有效减少网络通信流量和路由选择表大小,以增强网络的可管理性、可靠性和可扩展性.