Diversity training in graduate school: An exploratory evaluation of the Safe Zone project.

How can psychologists and graduate students become more affirmative of lesbian, gay, bisexual, and transgender (LGBT) issues? Safe Zone is a diversity-training program to increase sensitivity toward, knowledge of, and advocacy for LGBT populations and issues that affect them. In this exploratory study, the implementation of Safe Zone is described within a school of professional psychology; its effectiveness was assessed by self-reported behavioral and attitudinal changes and from participant evaluations. Results were encouraging with regard to the goals of Safe Zone and its adaptation to institutions interested in improving relations with the LGBT community, but additional empirical studies are needed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

切丝机维护模式刀辊低速自动旋转功能监控系统设计

切丝机是烟草制丝线主要设备。本文介绍运用艾默生CT驱动器的STO(Safe Torque Off)禁止力矩输出技术实现刀辊维护模式下的安全低速驱动。     

Windows堆保护机制及绕过的可能性分析

Windows堆管理器是一个用于动态分配内存的子系统。堆溢出是指在动态分配堆内存过程中堆块块首中的前向指针和后向指针被上一堆块中的溢出数据修改,这样在被溢出堆块被分配时可转去执行恶意代码。微软针对这种堆溢出提出了一系列安全机制,先简要叙述这一系列安全机制的工作原理,然后分析了这些安全机制存在的弱点,并对利用这些弱点绕过安全机制的可能性做了简要的分析。     

结合注册表讨论Windows系统中的安全问题

本文结合注册表进行分析与研究，从安装和Windows系统漏洞等角度提出解决方案。     

煤矿重组整合使山西煤炭工业步入健康发展的轨道

本文阐述了影响山西煤炭工业发展的主要因素,介绍了山西煤矿重组整合的重大成果、综合效益及其重要的现实意义。认为在煤矿重组整合过程中,应该注意处理好政府主导推动和发挥市场运作、国家利益与个人利益、重组整合工作与安全生产等关系。     

内压下轴向穿透裂纹等强度异径三通K1的计算

本文以断裂力学为基础,采用有限元分析方法,借助ANSYS有限元分析软件,对含轴向穿透裂纹等强度异径三通进行了研究。选择单元SOLID95和单元SOLID45建立了含轴向穿透裂纹等强度异径三通的有限元模型,并以此计算了内压载荷下各几何尺寸和裂纹尺寸三通主管和支管的应力强度因子K1,进一步换算成形状因子F并拟合成公式。公式的拟合误差在10％以内,可以满足工程安全评定的要求。     

复杂环境下爆破拆除45m高砖结构烟囱

45m高砖结构烟囱位于大型化工厂区,烟囱附近分布有热力管线、液氯车间和乙炔贮气铁罐;受地震影响在烟囱上部35m处向西偏3°。针对烟囱自身结构特殊性和四周环境的复杂性,采用开倒梯形切口定向倾倒爆破方案,且对爆破参数、安全防护、爆破网路进行精心地设计和施工,并对倾倒条件及稳定性进行验算。爆破取得了圆满成功。     

爆振对衬砌损伤特性影响的室内试验研究

本文根据一隧洞施工现场的实测爆振波特性，就爆振波对隧洞衬砌的浇筑时间、衬砌混凝土受振后的强度降低问题进行了室内爆振模拟试验，并应用损伤力学理论对试验结果作出了合理解释；对工程上所关心的安全爆速、衬砌的安全距离及合理衬砌时间等重要参数都给出了明确解答。     

Principles of engineering safety: Risk and uncertainty reduction

This article provides a systematised account of safety engineering practices that clarifies their relation to the goal of safety engineering, namely to increase safety. We list 24 principles referred to in the literature of safety engineering, dividing them into four major categories: Inherently safe design, Safety reserves, Safe fail and Procedural safeguards. It emerges from this systematisation that important aspects of these methods can be better understood with the help of the distinction between risk and uncertainty.     

Architectural constraints in IEC 61508: Do they have the intended effect?

The standards IEC 61508 and IEC 61511 employ architectural constraints to avoid that quantitative assessments alone are used to determine the hardware layout of safety instrumented systems (SIS). This article discusses the role of the architectural constraints, and particularly the safe failure fraction (SFF) as a design parameter to determine the hardware fault tolerance (HFT) and the redundancy level for SIS. The discussion is based on examples from the offshore oil and gas industry, but should be relevant for all applications of SIS. The article concludes that architectural constraints may be required to compensate for systematic failures, but the architectural constraints should not be determined based on the SFF. The SFF is considered to be an unnecessary concept.