氟塑料工业发展概述

本文对世界氟塑料工业发展的历史、概况和发展动态 ,以及中国氟塑料工业的现状作了概述。     

化学镀镍合金在电子工业中的应用

对化学镀镍合金铁工艺和性能特性及其在电子工业中的应有委展现状作了评述。化学镀镍合金具有镀层均匀，适用基材广，结合力高，硬度高，优良的耐磨、耐蚀性，可焊性好和特殊的电磁性能等特性，在电子工业中获得了广泛的应用。文中着重介绍了化学镀镍合金在磁盘、电磁屏蔽、微电路、半导体、连接器及薄膜电阻上的应用情况。这些案例说明，合理应用化学镀镍合金技术，有利于提高电子元器件的质量，降低成本，促进技术进步。     

不清根手工双面焊材料及工艺研究

本文分析了中厚板传统手工双面焊存在的诸如打底焊焊缝质量无法保证，需用碳弧气刨清根；工人劳动强度大；生产效率低；焊接质量不稳定等主要问题。为提高打底焊焊道质量，不用清根使背面得到良好的凹成形，研制了适合Ｘ形坡口的梯形体陶瓷衬垫。探讨了焊缝背面成形的主要影响因素及控制方法。     

我国钢铁工业发展中存在的问题及对策研究

针对全球经济一体化进程加快，以及中国加入WTO，我国钢铁工业应如何发展，剖析了我国钢铁工业存在的主要问题，分析了制约我国钢铁工业发展的重要影响因素，并在此基础上从宏观、微观的角度提出了我国钢铁工业发展的对策。     

Construction Productivity Improvement

Construction productivity has been on the decline in the last decade. The results are presented on a survey of the Engineering News‐Record 400 largest contractors to obtain their views on where productivity improvements would most help and to compare the trends with a similar survey carried out in 1979. Data were collected on the general company characteristics of the responding contractors, and on the contractors' opinions on potential areas for productivity improvement in the office and in the field. Findings indicate that immediate research should concentrate on improving marketing practices, planning and scheduling, labor‐management relations, site supervision, industrialized building systems, equipment policy and engineering design; and that governmental regulations have lost the immediate urgency attached to them in 1979.It is also recommended that similar surveys be conducted every 3 to 4 years to identify new trends and to steer research in the appropriate direction.     

运用社会主义市场经济规律加快水利基础产业的发展

水利作为基础产业,一个基本要求就是要自我维持,自我发展,这就要求人们树立强烈的紧迫感、危机感和赶超意识,按照社会主义市场经济要求,建立水利良性发展机制,调整水利产业结构,大力兴办经济实体,发展壮大水利经济实力,形成水利为社会,社会办水利的新格局。     

Use of Warranties on Highway Projects: A Real Option Perspective

Since the introduction of warranty provisions in federal highway jobs, more and more state departments of transportation (DOTs) have considered the use of such provisions to protect their initial investment. This paper describes the pros and cons of warranty contracting in highway construction based on a survey of warranty practices in the United States. In particular, the need for state DOTs to buy a warranty for a well-built project is questioned. As an alternative, this paper introduces the warranty option, which gives the DOT the right to buy a warranty only if it becomes necessary at the end of construction. This option is exercised if the performance on site warrants it. This paper describes the mechanics of the warranty option and its advantages over the conventional warranty. A bid evaluation model is also developed for the warranty option approach.     

真空行业现状及未来国内市场

简单扼要的概述了真空行业的发展历史，以较详细的统计数据阐述了2002年行业经济运行情况，并通过对相关行业“十五”发展规划的研究，对今后5～10年真空设备的市场进行了分析预测。     

我国WCDMA系统产业化现状及挑战

我国移动通信制造业在2G上晚了十年，未能取得相应的市场份额。但在3G领域，已经逐渐同步业界先进水平。如何改变现有市场格局，我国移动通信业面临全新的机会和重大的挑战，本就我国WCDMA系统产业化现状做了简要论述。