接触网零件振动试验方法探讨

通过对接触网零件用紧固件的耐振动性能进行振后扭矩测试和横向振动采用压力环测试应变进行对比分析，提出了合理的接触网零件耐振动性能试验方法。     

珠江口门海堤堤型的选择

珠江口站地区面临南海、大陆岸线长４５７ｋｍ，遭受洪水。潮汐、台风的影响，河口滩涂 发育迅速，以约１００ｍ／ａ的速度向大海延伸。随着沿海地区的经济发展，滨海－２ｍ高程以上的滩涂的４万ｈｍ＾２正在和将要建堤围垦和开发利用，原有海堤也亟待加固提高，因此，对珠江口门坝有海堤堤型资料进行收集、整理，分析总结，选择经济可行的海堤堤型，具有重要的现实意义。文中收集了珠江口门的几种主要堤型，通过对各种堤基工程地质     

起重机吊钩拖动绕线电动机他励双高调速系统

本文提出励磁电流可自动控制的他励式双高调速系统设计方案。系统在提升特别是在下放重物时，具有较硬的机械性；在负载１０－１００％的变化范围内，可实现最大偏差Δｎｍａｘ／ｎｍｉｎ１００％≤１０％，调速范围Ｄ≥１０；在满载运行条件下，可节约电能８０％以上。     

Sidle的远程执行设备

Ｓｉｄｌｅ系统是运行在ＳＵＮ工作站网络上的一组实用程序，利用空闲的处理机资源进行大粒度的并行计算．同其它远程执行设备相比，它能支持程序内部并行和嵌套的远程执行，允许一个服务员机接受多个远程执行任务．本文介绍了这些特点和透明性的实现方法．     

大功率CO_2激光器非平衡态合成WO_3／Fe_2O_3新型陶瓷催化剂──Ⅱ．WO_3／Fe_2O_3烯烃歧化反应催化剂的催化活性

用大功率ＣＯ２激光器熔制ＷＯ３／Ｆｅ２Ｏ３新型烯烃歧化反应催化剂。考查了催化剂组成、激光功率及熔炼时间与丙烯歧化反应催化活性之间的关系。     

水下灌浆隧道围岩应力与位移分析

目前对隧道围岩的应力与位移分析，其前提都是以围岩为均质材料，而灌浆隧道的围岩是由两层不同力学性能材料构成的夏合结构，其应力与位移特点不同于均质围岩。基于岩体的弹脆塑性模型及非关联流动法则，考虑地下水压力的作用，对灌浆隧道围岩的应力与位移进行理论分析，获得了围岩位移曲线。     

Growth of HgSe and Hg1−xCdxSe thin films by molecular beam epitaxy

Thin epitaxial films of HgSe and Hg_1−xCd_xSe (x≤0.34) were successfully grown for the first time by molecular beam epitaxy. Film growth parameters are discussed, and results of structural, electrical, and optical studies are reported.     

Daily impact of climate on the pattern of urban family life : Indigenous courtyard houses of Baghdad regions of the hot-dry climates Part I: Daily shifts or daily movements in summer

During the day, there are considerable variations in the climatic factors prevailing in these regions. This is especially so during the 24-hour daily cycle of the long, hot and dry summer (mid-May to midOctober). Such climatic conditions have had a considerable impact on the daily living pattern of family life in the same season, particularly in the urban areas. During the same 24-hour cycle, they have compelled the inhabitants to shift their living activities both vertically in section and horizontally in plan; they do this in pursuit of more acceptable, if not, desirable internal thermal environmental ambience.     

Waves generated by a source below a free surface in water of finite depth

The free-surface flow due to a submerged source in water of finite depth is considered. The fluid is assumed to be inviscid and incompressible. The problem is solved numerically by using a boundary integral equation formulation due to Hocking and Forbes [6]. The numerical results show that there is a train of waves on the free surface in accordance with the results of Mekias and Vanden-Broeck [5]. For small values of the Froude number, the amplitude of the waves is so small that the free surface is essentially flat in the far field. These waveless profiles agree with the calculations of Hocking and Forbes [6].     

PVC／NBR（HNBR）／HDPE共混体系相容性研究（Ⅲ）共混体系动态力学行为和结晶行为研究

用ＤＭＡ和ＤＳＣ研究了ＮＢＲ和氢化ＮＢＲ对ＰＶＣ／ＨＤＰＥ共混体系的增容作用。由于增容剂在相界面与ＰＶＣ和ＨＤＰＥ所产生的作用改变了界面分子的作用形式，使体系中ＰＶＣ和ＨＤＰＥ相的内耗峰内移。而ＤＳＣ的结果表明，增容剂降低了体系中结晶相ＨＤＰＥ的熔点，说明增容剂增加了ＰＶＣ／ＨＤＰＥ的相容性。