高层建筑地下室人防及通风设计

该文结合工程实例介绍了地下室人防及通风设计的方法及实际运用中的注意事项．     

Towards real CAD

Present-day computer-aided design (CAD) packages play only a small part in the area of mechanical engineering design, which involves the synthesis and embodiment of physical components to perform a pre-determined function without unwanted side effects. The computer cannot properly help the designer in this task until it is able to capture and process the function requirements of the design. This paper describes the computer system being developed for this purpose at the Engineering Design Centre at Cambridge University Engineering Department. The paper also explores some of the geometrical and programming implications raised.     

HiSQL: A Front-end Query System for Historical Relational Databases

The paper describes a prototype system called HiSQL (Historical SQL) which extends the functionality of SQL in manipulating historical data, by providing functions for spatial and temporal processing. Conceptually the paper is divided into three parts: the first part deals with the design and architecture of the system; the second part introduces a case study (the defters); and the third part describes specific functions for spatial and temporal processing of serial documents. The paper concludes with a comparison between HiSQL and SQL and suggestions for further work. This revised version was published online in August 2006 with corrections to the Cover Date.     

关于重力坝坝内细部构造设计的几个问题

重力坝常采用横，纵缝将坝体分为柱状体施工。为此，横缝须设置止水，纵缝则待坝体冷却后灌浆，将柱状坝块连成整体。此外坝体内部还须设置坝面排水管以消除坝内渗透压力。关于坝内这些细部构造，设计规范仅有原则性要求，一般专业书列举不多，目前有些工程往往参照已建工程的设计图采用，常由于施工详图不祥易发生施工质量问题。根据丹江口重力坝设计经验，对接缝灌浆中的键槽，止浆片，灌浆管道，出浆盒，排气槽及排气管，基岩陡坡     

Using internal fibre geometry to improve the performance of pin-loaded holes in composite materials

The anisotropic nature of fibre reinforced composites leads to large stress concentrations around pin-loaded holes through standard weave cloths. Proper understanding of how this anisotropic nature affects the load distribution around holes can be utilised to reduce these concentrations if sufficient thought is given to the internal fibre geometry near to the hole. Such local reinforcements need not be highly complex and can be readily produced without excessive effort, producing significant improvements in performance.     

川东地区井下套管损坏的原因分析及对策

本文就近年来在钻井施工中遇到的４口井发套管损坏的问题进行了原因分析，提出了防止井下套管损坏对策。     

多目标模糊全局优化设计方法和软件

分析了优化设计在土木工程中应用不够广泛的原因，由此提出了一个能用于工程设计的多目标模糊全局优化设计方法。介绍了按该方法研制的软件ＭＦＤ的功能和性能，以及一个用该软件分析的拱坝体型设计实例。     

浅谈21世纪新建电厂热控系统的规划设计

为了适应电力工业发展和国家新兴产业政策的需要,本文扼要介绍了21世纪新建电厂在热控系统的规划设计方面应做的改进和注意的问题.并在此基础上阐述了一些个人的观点和看法供管理、设计和技术人员参考.     

低温粉碎系统中旋风分离器设计

旋风分离器是一种应用离心力进行粉体分离的设备。低温粉碎系统应用它分离粉体并起集粉作用。它的效率决定了物质回收率。本文从离心加速度与重力加速度的比值，筒体的高低，筒体直径，进口速度叙述对分离器效率的影响。着重叙述筒体直径确定方法，以及我们设计造长筒形旋风分离器的具体结构和令人满意的试验结果。     

弹丸外弹道优化设计初始点的选取

在弹丸外弹道优化设计中,需对优化设计变量赋于初始值.初始值选取得如何,对整个优化计算所耗机时、迭代点收敛到哪个极值点上等等,影响很大.该文对初始值的选取原则、选取方法等作了讨论,所得结果也可作为对弹丸主要结构参数选优的预估.