长江中游地区水资源产业化开发研究

长江中游地区对丰富的水资源进行产业化开发可实现振兴经济的目的,其中售水、水电、水运、水域农业和水上旅游业是主要开发领域。水资源产业化开发的利益关系由合理的收费与价格体系进行协调。     

电动振动台台面加速度失真度的分析

通过对影响电动振动台失真度因素的定性分析，得出影响失真度的理论依据，提出降低电动振动台台面加速度失真度的措施，供设计电动振动台及使用电动振动台者参考。     

RESIDENTIAL WATER DEMAND: A POOLED,TIME SERIES,CROSS SECTION STUDY OF MALMÖ, SWEDEN1

Shortcoming associated with past water demand studies are evaluated. To overcome these shortcomings, pooled, time series, cross section data from -6, Sweden, are used in an ordinary Least squares analysis to estimate the demand for residential water. Elasticities for five variables, including price and income, are estimated. An approach for the conduct of future water demand studies is suggested.     

GIS技术在土地资源估价中的应用分析

本文主要分析了GIS技术的功能、概念、发展及基于该技术的土地估价信息系统的组成、功能和优越性。为土地估价提供了强有力的技术支持和科学依据     

Restructuring water industry in China: towards sustainable urbanization

１　ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｄｕｓｔｒｉａｌｉｚａｔｉｏｎａｎｄｕｒｂａｎｉｚａｔｉｏｎａｒｅｔｗｏｍａｉｎａｓｐｅｃｔｓｏｆｅｃｏｎｏｍｉｃｄｅｖｅｌｏｐｍｅｎｔ．Ｃｈｉｎａｈａｓｂｅｅｎｕｎｄｅｒｇｏｉｎｇｔｈｅｓｅｃｏｕｒｓｅｓ．ＩｎｔｈｅｐｒｏｃｅｓｓｏｆＣｈｉｎｅｓｅｕｒｂａｎｉｚａｔｉｏｎ，ｔｈｅｐｒｏｐｏｒｔｉｏｎｏｆｕｒｂａｎｐｏｐｕｌａｔｉｏｎｉｎｔｏｔａｌｐｏｐｕｌａｔｉｏｎｉｎｃｒｅａｓｅｓｆｒｏｍ２５－８１％ｉｎ１９８８ｔｏ２９－９２％ｉｎ１９９７（ＳＳＢ，１９９０；…     

花生蛋白废水生产的单细胞蛋白安全性的实验研究

花生蛋白废水是在花生蛋白加工过程中排放的一种高浓度有机废水。每生产1t花生蛋白,约有14—15t废水排出,其中BOD,COD高达10000ppm以上。此外还有多种无机离子,如不经处理排放到自然水体,将造成严重的环境污染,使大批水生生物死亡,甚至影响人类的健康。 为此,我们研究出以花生蛋白废水为原料,双菌混合,液、固两步发酵生产单细胞蛋白(SCP)的新工艺。在生产过程中,无培养废液排放,不产生二次污染。生产的SCP含粗     

Transfer of powders into flammable solvents overview of explosion hazards and preventive measures

This paper evaluates and analyses the explosion hazards associated with transfer operations of powders into large containers, hoppers and reactors, which may also contain flammable solvent vapours. The formation and characteristics of explosive atmospheres and the occurrence of process inherent ignition sources, such as static electricity are described. The most commonly applied preventive measures and technical equipment are outlined and discussed including their advantages and disadvantages.     

Fire accident investigation of an explosion caused by static electricity in a propylene plant

This study investigated a 2010 fire and explosion that occurred at a polypropylene (PP) and copper-clad laminate high-tech plant in Taiwan. Liquid acetone leakage caused the fire and explosion. One person was killed and five were injured; property damage was estimated at US$20 million. In contrast to conventional plants, high-tech plants have sophisticated instrumentation, highly complex pipelines, and confined spaces. In addition, the floor area in a high-tech plant is large and frequently contains a channel through the ground floor to the second or third floor. This channel design enables the fire compartment to be destroyed. Therefore, the system cannot confine the fire to a specific area, thus hindering fire-relief operations. In this study, the original fire outbreak occurred in the PP processing area on the ground floor. The acetone storage tank was located on the third floor. The investigation conducted at the fire site of the situations of the burning (bursting) loss determined that the acetone liquid leaked and dripped from floor cracks and tunnel oven to the PP processing area. Because the PP manufacturing process rapidly generates static electricity, the flammable liquids made contact with the source of ignition, which caused the explosion and fire. Various procedures, such as those involving the operating environment of production, packaging, and processing in a high-tech plant, are likely to produce static electricity in a workplace. Improved electrostatic management can prevent the loss of property and lives, liquid acetone leakage, and loss of equipment caused by static electricity fire.     

漏电断路器的安装与使用

提出断路器存在的问题,分析了原因并提出一些改进方法。     

电凝聚去除微污染源水中浊度的试验研究

用电凝聚对微污染水中浊度的去除效果进行试验，得到比较明显的处理效果；对电凝聚去除浊度的机理进行了探讨．在此基础上对实验数据进行了数学分析。