ZRS-6.72-3型电收尘器技术改造

ZRS-6．72—3型电收尘器原设计用于13．8kt／a锌冶炼烟气收尘制酸工艺中，因电收尘器使用时间长，电源控制柜故障率高和沸腾炉扩大更新，对电收尘器同步进行配套技术改造。改造为CRS-8．24—3型电收尘器后，又陆续使用了HL-Ⅲ型恒流源控制电柜，投产后的电收尘器具有收尘效率高、电场运行稳定等特点。     

SBR工艺发展应用综述

关于SBR工艺的书籍和文章很多。本文在这些资料的基础上整理总结 ,对经典SBR工艺的应用进行了综述 ,归纳了经典SBR工艺的特点 ,介绍了各种新型SBR工艺。     

Absence makes the adaptations grow fonder: Proportion of time apart from partner, male sexual psychology, and sperm competition in humans (Homo sapiens).

Sperm competition occurs when the sperm of multiple males concurrently occupy the reproductive tract of a female and compete to fertilize an egg. We used a questionnaire to investigate psychological responses to the risk of sperm competition for 237 men in committed, sexual relationships. As predicted, a man who spends a greater (relative to a man who spends a lesser) proportion of time apart from his partner since the couple's last copulation reported (a) greater sexual interest in his partner, (b) greater distress in response to his partner's sexual rejection, and (c) greater sexual persistence in response to his partner's sexual rejection. All effects were independent of total time since the couple's last copulation and the man's relationship satisfaction. Discussion addresses limitations of the current research and situates the current results within the broader comparative literature on adaptation to sperm competition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

弹簧钢棒线材质量投诉的分析研究

为分析研究某特钢厂用户投诉的原因及存在的问题，统计了其两年间的弹簧钢棒线材用户质量投诉，从缺陷类型及生产过程控制进行了分析，重点对多起断裂原因不明的投诉进行了深入的失效研究。结果表明，弹簧钢生产厂在设备工艺、过程控制和管理中存在很多不足，加上用户的使用工艺、材料的内外质量和规格等综合因素导致了材料的断裂失效。     

Vasopressin and the transmission of paternal behavior across generations in mated, cross-fostered Peromyscus mice.

The role of arginine vasopressin (AVP) in the nongenomic transfer of paternal behavior from fathers to offspring was examined in Peromyscus. Male California mice (P. californicus) exposed to fewer retrievals by white-footed mouse (P. leucopus) foster parents displayed fewer retrievals of biological offspring. In contrast, white-footed mice were retrieved equally rarely by California mouse foster parents and by biological parents and displayed no changes in pup retrieval behavior. AVP-immunoreactive staining in the bed nucleus of the stria terminalis may predict paternal behavior because it correlated positively with retrievals and with a score consisting of huddling, grooming, and time inside the nest. The authors discuss AVP as a possible mechanism by which early experience shapes adult paternal behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Encapsulation of PV modules using ethylene vinyl acetate copolymer as a pottant: A critical review

The primary purpose of this work is to review the literature about what is and is not known about using ethylene vinyl acetate (EVA0 copolymer as the encapsulant (or pottant) material in photovoltaic (PV) modules. Secondary purposes include elucidating the complexity of the encapsulation problem, providing an overview about encapsulation of PV cells and modules, providing a historical overview of the relevant research and development on EVA, summarizing performance losses reported for PV systems deployed since ca. 1981, and summarizing the general problems of polymer stability in a solar environment. We also provide a critical review of aspects of reported work for cases that we believe are important.Failure modes resolved in the early work to establish reliability of deployed modules and the purposes and properties of pottants, are summarized. Typical performance losses in large field-deployed, large-scale systems ranging from 1% to 10% per year are given quantitatively, and qualitative reports of EVA discoloration are summarized with respect to ultraviolet (UV), world-wide location and site dependence.The general stability of polymers and their desirable bulk properties for solar utilization are given. The stabilization formulation for EVA, its effectiveness, and changes in it during degradation are discussed. The degradation mechanisms for the base resin, e.g., unstabilized Elvax 150^TM, and stabilized EVA are indicated for literature dating to the early 1950s, and the role played by unsaturated chromophores is indicated. The limited number of studies relating discoloration and PV cell efficiency are summarized.Observed degradation of EVA or the unstabilized base resin in the laboratory and examples used to measure the degradation are summarized in sections entitled: (1) thermally-induced degradation; (2) photodegradation and photothermal degradation of EVA in different temperature regimes; (3) photobleaching and photodegradation of the UV absorber and cross-linking agent; (4) acetic acid and metal and metal-oxide catalyzed oxidative degradation; and (5) discolaration and PV cell efficiency losses.Processing effects/influences on EVA stability are discussed in sections entitled: (1) EVA raw materials and extruded, uncured films; (2) thermal encapsulation processes; (3) effects of lamination, curing, and curing peroxide on gel content and chromophores formed; and (4) incomplete shielding of curing-generated chromophores. A summary is given for the limited number of accelerated lifetime testing efforts and examples of erroneous service lifetime predictions for EVA are discussed. The known factors that effect the discoloration rate of several EVA formulations are discussed in which the reduction in rate by using UV-absorbing superstrates is a prime example. A summary is given of what is and is not known about EVA degradation mechanisms, degradation from exposures in field-deployed modeules and/or laboratory testing, and factors that contribute to EVA stability or degradation. Finally, conclusions about using Elvax 150 in EVA formulations are summarized, and future prospects for developing the next-generation pottant for encapsulating PV modules are discussed.     

城市污水处理厂的施工监理

指出施工监理是一项细致而又责任重大的工作。把握好污水处理厂关键工序的施工及检查,才能对污水处理工程进行有效地控制和管理,使之发挥最大的经济和社会效益。     

响洪甸水库坝基扬压力异常原因及处理方法的探讨

响洪甸水库大坝被评定为三类坝,其最主要原因是该库的防洪能力不足、大坝坝基扬压力过高和F2断层难以确定,严重影响大坝的安全稳定.本文主要对坝基扬压力过高的探查试验情况进行介绍,对产生的原因进行分析,并提出了处理方案的设想.     

泄压注浆法在治理小型突水中的运用

七煤集团建设工程公司在施工辽阳铧子石膏矿主、风井井筒时 ,多次采用泄压注浆法成功通过中小型含水层 ,对小型突水进行了有效封堵 ,取得了较好的经济效益     

紫外激光诱导胃癌组织自体荧光的研究

本文测量了紫外激光（３０８ｎｍ）激发诱导正常组织和胃癌组织３１５ｎｍ－６００ｎｍ波段的自体荧光，发现胃癌组织在此荧光光谱不同于正常组织的荧光光谱。根据两者４的区别，可以把胃癌组织从正常组织中区分出来，这为诊断胃癌提供了一个新的思路。