高压氢气安全储运和泄漏监测研究现状

研究氢气泄漏引发的大气、土壤等环境介质的温变机理,对于提高氢气泄漏监测效率具有重要意义。总结氢气储运现状和面临的主要问题,提出保障氢气输送安全的技术措施和监控策略。结合相关工程实践和理论研究成果,对氢气泄漏的特点、扩散特性、燃爆机理及影响因素进行总结。运用数值仿真模拟高压氢气经过泄漏孔后在大气或土壤中的扩散过程,预测氢气泄漏事故的影响范围,为储运工艺设计、管理优化、安全监测提供指导。     

Think Twice Before Going for Incentives: Social Norms and the Principal's Decision on Compensation Contracts

Principals make decisions on various issues, ranging from contract design to control system implementation. Few studies examine the principal's active role in these decisions. We experimentally investigate this role by studying how a principal's choice of an incentive contract that may discourage misrepresentation, compared to a fixed‐salary contract, affects the honesty of his or her agents’ cost reporting. Results show that, besides an incentive effect and a principal trust effect, the active choice for incentives produces a negative “information leakage” effect. When principals use incentives, their choices not only incentivize truthful reporting and signal distrust, but they also leak important information about the social norm, namely, that other agents are likely to report dishonestly. Agents conform to this social norm by misrepresenting cost information more. Our results have important practical implications. Managers must recognize that their decisions can leak information to their agents, which may produce unanticipated consequences for the social norms of the organization.     

建筑外墙渗漏水原因分析与防治措施

针对外墙渗漏这一质量通病,分析了其发生的常见部位和在设计、施工及使用等方面存在的主要原因,并根据水在墙体中渗透深度、渗透量和渗透时间的理论计算公式,评估外墙渗漏的主要影响因素,从而提出防治措施。     

常见的混凝土防渗漏问题及措施分析

工程质量的优劣与千家万户的安乐生活息息相关,如何防治建筑工程的渗漏作为一件大事抓紧抓好,显得十分重要和迫切。本篇文章就是分析混凝土的渗漏问题,分析渗漏问题产生的部分原因和防治方法。     

机械密封式电缆贯穿件研制

核电站、核反应堆等核装置为了防止放射性物质外泄,在电缆穿墙(壁)时采用电缆贯穿件进行隔离。通常电缆贯穿件需将电缆截断采用插接件进行密封,插接式电缆贯穿件密封性能容易保证,密封可靠,泄漏率可达到极小。但加工零件多、精度要求较高,制造成本高。特别是对于大电流动力电缆和要求较高的信号同轴电缆,容易产生插接电极发热过大和信号衰减。为了满足工程需要,采用不截断电缆,不破坏电缆护套,本文研制了一套试验样机。样机经过密封性能、电气性能和抗震试验的验证。样机的的各项技术指标满足工程要求,泄漏率小于1×10-7Pa.m.3s-1。     

THE IMPACT OF THE EU EMISSIONS TRADING SYSTEM ON COMPETITIVENESS AND CARBON LEAKAGE: THE ECONOMETRIC EVIDENCE

This paper carefully surveys the econometric literature that tests for competitiveness effects and related carbon leakage caused by the EU Emissions Trading System (EU ETS). The results of this literature tell us that to date there is no evidence of the EU ETS having had widespread negative or positive effects on the competitiveness of regulated firms, nor is there evidence of significant carbon leakage. However, the paper also identifies three important caveats to this general conclusion. Firstly, the evidence we have still largely refers to the first two trading periods, namely Phases I (2005–2007) and II (2008–2012). Secondly, some heterogeneity of estimated effects is observed, but patterns, notably sectoral patterns, hardly emerge. Thirdly, very little explored is whether the EU ETS has had long-term effects on the economy via investment leakage or firm dynamics. Further empirical studies investigating these long-term effects are particularly desirable.     

土石坝常见病害处理措施分析

土石坝病害实时处理是保证其安全稳定的重要措施,文章结合实际工作经验,在简要分析土石坝常见病害形式的基础上,提出综合性的病害处理策略。     

检测实验室常见化学品泄漏危害及应急处置

本文列出了检测实验室三种化学品汞、重铬酸钾、氢氟酸泄漏的危害及其应急处置措施,并对检测实验室化学品安全防控体系提出意见和建议,本文是首次针对检测类实验室的化学品泄漏提出了专门性的意见和建议。同时我们认为减量化、无害化将是未来检测实验室的发展方向,绿色实验室的理念必将深入人心。     

《物权法》对部队营房管理的几点思考

随着军队住房改革制度和营区综合配套整治工作的深入进行以及国家和军队有关法规政策的调整,特别是《物权法》的出台,军队营房管理人员面临着更高的要求,本文围绕这一课题,就新政策给部队营房管理及部队管理工作带来的影响进行了探讨、提出了当前做好部队营房管理工作的建议。     

飞力潜水泵监控系统介绍及泄露故障案例分析

介绍了ITT飞力潜水泵监控保护系统,总结了该系统在运行过程中遇到的问题,对常见泄漏故障案例进行了分析,并提出了相应的解决办法。