高炉矿槽槽上通风除尘

介绍了高炉矿槽槽上通风除尘的一种新技术,采用移动式通风口加除尘装置,效果良好。     

金的生物地球化学及遥感探矿方法

本文阐述了国内外有关金的生物地球化学性质和对植物产生的生物地球化学效应特征、遥感影象特征以及遥感生物地球化学探矿方法。同时也指出了需加强该领域的理论和应用研究，为广大植被覆盖地区寻求一种快速有效的探矿方法。     

排污费制度改革对煤矿的影响及其对策

在介绍国家新的排污收费制度及其重大变化的基础上，论述了其对煤矿的影响，探讨了煤矿应采取的对策问题。     

搞好绿化设计提高环境质量

石油化工厂在生产过程中散发大量污染环境的有害物质和产生强烈的噪声．绿化设计能起到保护环境、美化环境的作用。     

用硫铁矿烧渣制备的硫酸亚铁研制软磁用α-Fe_2O_3

介绍了利用硫铁矿烧渣制备的硫酸亚铁为原料制备高纯软磁用α Fe2 O3的基本原理、制备工艺 ,以及对工艺过程的影响因素进行了探讨 ,得到了制备高纯软磁用α Fe2 O3的适合条件 ,并对高纯软磁用α Fe2 O3的工业化生产做了经济估算     

基于AutoCAD VBA的轿车滚形轮辋下料尺寸自动计算

利用AutoCADVBA开发了一种根据产品图快速准确地确定轿车滚形轮辋理论下料宽度和下料长度自动计算程序。此程序在轮辋产品工艺设计及新产品开发中具有较大的现实意义。     

麦饭石对水溶液中铜离子的吸附作用研究

研究了麦饭石对水溶液中铜离子的吸附作用。其吸附率与粒度、用量、铜离子溶液、溶液的ｐＨ值和吸附时的温度等因素有关，比较了相同实验条件下麦饭石和活性炭的吸附能力，提出了工业应用的适宜条件。     

化工类建设项目布局选址的思考

化工行业是一个环境风险比较大的行业,由于化工企业经营内容、生产工艺、使用的原材料不同,潜在的环境风险也有很大的差异.为了区别对待合理选址,对化工类项目可能产生的环境风险后果进行环境风险评价与分类,再结合周围环境对环境风险的承载能力进行综合分析,根据环境优先的原则,可以合理的确定化工类项目的选址.     

秦皇岛水安全现状分析及对策研究

随着全球经济的飞速发展,全球生态环境安全已经成为人们日常关切的问题,在这样的前提下,水安全已成为生态安全方面一个重要的核心问题.从秦皇岛市水安全现状出发,探讨了影响秦皇岛市水安全的主要因素,并指出了由水安全问题引发的其他问题,分析了可以解决秦皇岛市水安全问题的解决对策.     

Amniocentesis carried out for neural tube indications in South Wales 1973–1981: Outcome of pregnancies and findings in the malformed abortuses

The 2872 second trimester amniocenteses followed by amniotic alphafetoprotein (AFP) estimations carried out in South Wales between 1973 and 1981 on women known to be at increased risk for neural tube defect (NTD) and those who had a raised serum AFP level in an NTD screening programme led to the identification of 78 pregnancies of a fetus with anen-cephalus, 61 with ‘open’ spina bifida, 8 with gastroschisis, 3 with exomphalos, 2 with encephalo-cele and 6 with chromosome abnormality. Pregnancies of fetuses having 4 potentially identifiable NTDs were missed because of an equivocal AFP level and there were two false positive results leading to the termination of one normal fetus. It is emphasized that both the latter problems of one normal fetus. It is emphasized that both the latter problems would not have occurred had gel-electrophoresis for isoenzymes of acetyl cholinesterase been available. Follow-up of pregnancies showed that 7 children with ‘closed’ NTD and 3 with congenital hydrocephalus were born. The anencephalics and the ‘open’ spina bifidas had a more florid lesion than is usual at term. Nearly all the spina bifidas were associated with hydrocephalus, often severe and with an obvious Arnold-Chiari malformation. All but 13 had leg or back deformation or malformations in other systems, mostly in the renal tract.