改性氢氧化钙粉体的研制及其特性

介绍了作为氯气清除剂的粉体应具有的特性,并对粉体的研制方法进行了简单叙述。同时,对改性氢氧化钙粉体特性作了详细介绍。不难看出,研制的改性氢氧化钙粉体具有高度活性,与氯气捕消器配合使用,将成为氯气泄漏时的抢险措施     

金沙江流域水土流失与人类活动影响分析

长江三峡水利枢纽工程能否正常发挥效益，泥沙是重要的制约因素之一，而水库的泥沙主要来自上游金沙江，其多年平均输沙量占入库寸滩站的５２７％。因此，本文对金沙江泥沙的地区组成、水土流失及人类活动影响等问题进行了深入的分析，并提出了防治对策。     

四川旱涝灾害时间分布序列的分形特征研究

本文采用分形理论计算了四川旱涝灾害时间分布序列的分数维，其结果初步证实了四川旱涝灾害时间分布在一定区间范围内的无标度性。无标度区的跨度及相应的分形维数可作为四川旱涝灾害自组织程度的量度。     

关于模糊综合指数与模糊向量加权记分

通过将模糊向量加权记分与模糊综合指数的计算步骤、计算内容和方法一一进行比较,证明模糊向量加权记分与模糊综合指数无本质差异。所采用的分制规定差异,只能使模糊向量加权记分所得结果更加不合理。采用模糊综合指数法,选用恰当的权重,可以克服“优劣倒置”现象。     

圆筒件拉深极限理论及计算机辅助工艺设计

此文从实际变形条件下变形区的应力、应变分析以及传力区的实际强度入手,从理论上建立了筒形件拉深失效的判定原则,并编制出了实用的计算机工艺设计程序。     

废水厌氧(水解)--好氧生物组合处理工艺研究进展

比较了厌氧(水解)法和好氧法废水生物处理技术的优缺点，分析了厌氧(水解)—好氧组合工艺的主要优势；并根据组合工艺在空间和时间上的4种不同实现形式，总结了近年来国内外组合工艺的应用现状和发展趋势。     

悬浮填料在废水生物处理中的应用进展

综述了悬浮填料及反应性悬浮填料在废水生物处理中的应用。在曝气池中添加悬浮填料对传统活性污泥法进行改进，改造工程简单，并可使原有污水处理场的处理能力及脱氮能力大大提高；悬浮填料与活性污泥法的多种变型相结合，在市场上形成了多种新型反应器和新的商品处理工艺。反应性悬浮填料的使用也已取得一系列成功经验，但仍然要注意反应性悬浮填料本身在废水中的降解问题。     

Land Use/Cover Changes, the Environment and Water Resources in Northeast China

Land use/cover in Northeast China went through extensive changes during the 1990s. This report explores the interaction between these changes and the environment, and the implication of these changes for rational allocation of water resources. Two maps of land use/cover produced from 1990 and 2000 Landsat TM satellite images were overlaid in ArcInfo to reveal changes in land cover. Results indicate that farmland and grassland decreased by 386,195 and 140,075 ha, respectively, while water, built-up areas, and woodland increased by 238,596, 194,231, and 192,682 ha, respectively. These changes bore a mutual relationship with the environmental change. On the one hand, climate warming made some of these changes (e.g., conversion of woodland and grassland to farmland) possible. On the other hand, the changed surface cover modified the local climate. These changes, in turn, caused severe environmental degradation and increased flooding. The change between dry field and rice paddy, in particular, raised severe implications for the proper allocation of limited water resources in the Northeast. Efforts are needed to coordinate their rational allocation to reap maximum and sustainable return over the entire area, not just in some localities. Results obtained in this study should be of interest to the international audience of Environmental Management in that they highlight the interactive nature of human activities and the environment and the off-site impact of these activities on the environment.     

某铜镍矿冶炼车间鼓风炉除尘系统评价

介绍了喀拉通克铜镍矿冶炼车间鼓风机除尘系统的现状及测定结果，找出了除尘系统存在的问题，并提出了相应的改进措施。     

Eco-environmental benefit assessment of China's South-North Water Transfer Scheme--the middle route project

This paper assess the eco-environmental benefits that may come from the middle route project of China‘s South-North Water Transfer Scheme(SNWT) with principles and methods of eco-economics and planning reports of SNWT‘s middle route project. Some benefits were calculated in monetary units. To make sure that the results can be comparable with normal monetary indices, concrete assessment objects and the parameters are prudently selected according to the major characteristics of the project and its water import region. Primary assessment revealed that in different project construction stages, the benefit could be more than 13.07 billion RMB Yuan in 2010 and 19.79 billion RMB Yuan in 2030, respectively. The monetary value tends to increase with social-economic development. To realize these potential benefits, however, calls for more endeavors.