压缩应力下（Tb,Dy）Fe2磁致伸缩的研究

本文利用自制的磁致伸缩测量仪和“ｊｕｍｐ”效应测量仪研究了在一定压强了多晶（Ｔｂ、Ｄｙ）Ｆｅ２棒的磁致伸缩,发现加压时,在一定工艺条件下制作的（Ｔｂ、Ｄｙ）Ｆｅ２棒会有磁致伸缩的变化。卸载后经过热处理,磁致伸缩值在不加压时也会维持一个高值。     

球墨铸铁铁路配件的生产

本文对比了两种铸铁的机械性能,叙述了铸态球墨铸铁铁路配件的生产,分析了球化处理、孕育处理对配件质量的影响。     

光三角式传感器测距系统

主要介绍了光三角式距离传感器测距系统的结构组成和原理 ,分析了参数之间的转换关系 ,论述了以单片机为核心构成检测电路的原理和性能 ,以及单片机的软件功能。最后给出检测系统的主要技术指标。     

基于多媒体网络的综合英语多元互动教学模式研究

互动在语言教学中由来已久,随着多媒体网络技术的迅猛发展,多元互动教学模式的可行性和优越性日益凸显出来。本文详细阐述了多元互动教学模式在综合英语教学中的建构,着重探讨了基于多媒体网络的综合英语多元互动的教学实践,旨在探讨如何通过有效的教学互动以达到优化教学效果的目的。     

对石油钻井队正职干部的考核工作初探

科学考核和评价干部,是激励干部创先争优,推进企业绩效持续提升、不断跨越的有效途径,是加强干部队伍建设的基础性工作。胜利油田渤海钻井一公司党委对井队正职的分类量化考核进行大胆探索,制定了《钻井队正职干部综合考评规定(暂行)》,建立健全了井队正职干部能上能下的岗位管理机制,形成创先争优的良好氛围,推进"人才强企"战略实现跨越式发展。     

Photocatalytic degradation of a phenylurea, chlortoluron, in water using an industrial titanium dioxide coated media

The degradation of an herbicide, chlortoluron, by UV/TiO₂ photocatalysis in water using industrial titanium dioxide coated non-woven paper was studied. The influence of parameters such as adsorption capacity, initial concentration and TiO₂ implementation (coated or in suspension) was investigated. The results emphasize the importance of operational conditions and reactor geometry on the kinetic degradation rate. The analysis of the first organic by-products suggests that a hydroxyl radical attack occurs on the phenyl ring and methyl groups of the chlortoluron before the opening of the aromatic ring. The fate of hetero-atoms has been investigated. The fates of the two nitrogen atoms in the molecule are different, not only did it depend on their initial oxidation degree, as both had the same oxidation degree, but also on the initial oxidation state of neighboring carbons. The chlorine atoms were completely released as chloride ions. The study of the influence of the oxygen concentration showed the importance of the oxygen mass transfer when designing an industrial photocatalytic reactor. An original calculation process was carried out to evaluate the adsorption constant of oxygen over the whole photocatalysis period and not only in the initial conditions as previously provided. This work points out the necessity of extending the understanding of the efficiency of chlortoluron removal or of the removal of various complex pesticide mixtures found in agricultural wastewater, using alternative, more industrially realistic, reactors.     

电去离子(EDI)技术在热电厂水处理中的应用

电去离子 (Electrodeionization简称EDI) ,是一种将膜分离技术与离子交换技术有机结合起来去除水中离子获得低电导率产品水的新型水处理技术 ,在电力、电子、医药、化工、冶金、机械、化妆品、电镀电解、食品饮料、纺织印染等多个领域具有广泛的应用空间 ,本文简要介绍了这种新型水处理技术的原理、特点及在热电厂化学水处理中的成功应用情况