微生物絮凝剂在毕节地区污水处理中的应用前景

2006年毕节地区废水排放总量达5746.79万吨,给水资源造成了很大的污染。而微生物絮凝剂以其高效性、无生物毒性、安全性、易被微生物降解、无二次污染、应用范围广、除浊和脱色效果好等特点,在污水处理过程中应越来越来受到人们的关注。     

Obesity and minority—changing meanings of big bodies among young Pakistani obesity patients in Norway

Globally, paediatric obesity causes widespread concern, and the role of ethnicity is an important focus. Investigating how culture can mediate health-related behaviour through ideas about bodies, food and physical activity, while addressing a notion that the Pakistani community in Norway is particularly conservative and slow to change, this article points to the centrality of health as a cultural concept and the state of efficacy of public health promotion in contemporary Norwegian society. A Foucauldian perspective lends itself to this approach and the concepts of bio-power, bio-pedagogy and proper citizenship inform the analysis. Specifically, this article examines the obesity and weight loss experiences of Pakistani youth undergoing treatment for paediatric obesity in Norway and the ways in which they negotiate and position themselves amongst competing discourses of weight, health and weight loss.     

项目教学法在“金属材料热处理”课程中的应用

为提高教学效果,培养学生自主学习兴趣和能力,采用项目教学法对本文“金属材料热处理”课程进行全新的课程设计和教学实践。本文介绍了项目教学法的实践经验和实施过程中应注意的几个关键问题。总之,项目教学法能够有效提高材料类专业的“金属材料热处理”课程的教学效果,值得进一步推广。     

神宁集团梅花井煤矿1102206综采自动化工作面开采技术应斥

介绍了梅花井煤矿1102206综采自动化工作面总体设计方案,对其各子系统进行了阐述。分析自动化工作面的采煤工艺,重点介绍了综采自动化工作面自动控制系统的总体设计,分析了自动控制系统的控制原理。建立了地面监控系统,实现对整个综采工作面集中监控。地面监控系统     

基于物理模型实现的CVBS宽带隔离变压器的设计过程

这篇文章是作者设计的一种CVBS（复合视频基带信号）宽带隔离变压器的技术总结,设计得到了相关视频工业标准的认证。针对复合视频信号传输系统存在的接地环路工频干扰的问题,文中讨论了地回路隔离设备基于模型的开发技术,涉及到物理器件的模型构建、仿真迭代和产品实现的可操作过程及其工具使用;由于设计行为已经深度嵌入到众多工程师的职业生涯中,从任何程度和职业视角对设计过程的回顾,都将有益于对设计技能的探索和改进,因此这个技术总结还触及到设计技能的具体经验乃至设计过程模式的某些思考。文章包含了这样一些章节：问题背景与目标;快速原型;模型迭代;设计验证。     

高压设备电气接头发热缺陷的检测与处理方案分析

目前在110kV电压等级及以上变电站中,输变电设备电气接头不同程度发热的现象时常存在,这对设备本身造成伤害,也对电网安全可靠运行构成很大影响,必须采用有效手段加强检测,尽早发现热点并进行处理和防范。本文以实际运行中一个接头发热案例,分析了故障原因,提出了检测和防范措施。     

Wall base ventilation system to treat rising damp: The influence of the size of the channels

One of the major causes of pathologies in our historic buildings is the presence of moisture, particularly rising damp. Since these constructions tended to be built near water lines, to facilitate their supply, and because their walls are mainly made of high porosity materials, the presence of rising damp is constant. Although many historic buildings in Portugal have already been the targets of interventions to eliminate pathologies, the fact is that it has not been possible to do it properly. The treatment techniques available nowadays are quite diverse but all of them have low applicability to historic constructions. Research has been carried out, in this past years, at the Department of Civil Engineering of the University of Coimbra in collaboration with Department of Civil Engineering of the Faculty of Engineering of the University of Porto to try and solve this problem. An old but poorly studied technique has been investigated experimentally and numerically in the past few years: ventilation of the base of the walls. It was experimentally validated to limestone walls 20 cm thick. Numerical investigation has been carried out in order to analyze the influence of different parameters on its efficiency. In this paper we present the results of the latest investigations that have been carried out about the influence of the size of the ventilation channel on its efficiency.     

Determining treatment priorities for ecclesiastical textiles using significance and conservation assessments

The Benedictine monastic community at New Norcia, Western Australia needed an assessment of their historic textile collection as a preliminary step in gaining financial support to preserve the garments. The textiles were grouped according to functional use with sampling controlled by random number generation of the registers. The highest significance and conservation rankings were rated at 5 and the lowest in the categories was given values of one. The numbers in each category fell logarithmically as the significance values increased. The number of hours of work required to stabilise the objects increased logarithmically as the conservation ranking increased from 1 to 5. Analysis of the conservation needs indicated that nearly 84% of the collection, the sum of the level 1 and level 2 textiles can be stabilised with simple preventive conservation methods practised by trained volunteers, leaving the most significant items in the care of experienced conservators. Multiplication of the conservation and the significance values provides a treatment priority score to guide collection managers in determining which objects are treated by conservators. Data is also provided on the impact of light exposure on the deterioration of the coloured fabrics of the vestments.     

Relational Commitment and the Silent Treatment

When upset with a relational partner, intimates often enact the silent treatment, although it can harm their relationships. This study investigates the degree to which relational commitment predicts a person's self-reported use of the silent treatment. Undergraduate daters indicated their relational commitment, their use of the silent treatment when upset with their partner, and what they do if the partner asks if they are upset. Relational commitment was negatively related to using the silent treatment and stonewalling when the partner asked if there was a problem. Relational commitment was only positively related to admitting being upset when the partner asked if there was a problem. Study limitations and future research implications are discussed.     

聚丙烯微孔膜表面的气体等离子体改性

采用空气等离子体对聚丙烯微孔膜进行表面改性,用X射线光电子能谱,扫描电镜表征膜表面形态和微观结构的变化。考察了改性膜的水接触角、水通量以及在浸没式膜-生物反应器中的动态抗污染性能力。结果表明,改性后聚丙烯微孔膜的水接触角从100°减小到40°,膜的水通量提高,污染率下降。改性后聚丙烯微孔膜的亲水性和抗污染能力得到较大提高。