Major Hazard Information Policy in the European Community: Implications for Risk Analysis

The main impetus to the development of information about major industrial hazards in the European Community comes from the so-called Seveso Directive, which defines an information network and requires the generation and transmission of information as the basis for accident prevention and risk management. This important policy development, which calls for the formal identification and analysis of major hazards and the communication of risk information to members of the public, presents new opportunities and challenges to risk analysis and research in Europe. This paper briefly reviews the accidents that gave rise to the Directive and shaped its content, and then summarizes its requirements. The status of its implementation in the EC Member States is discussed, with special emphasis given to the comparison of safety analysis practices, the Major Accident Reporting System (MARS), and risk communication. Some new research directions stimulated by the Directive are identified.     

大学生就业中性别歧视问题的社会心理透视

针对市场经济条件下女大学生在就业环节中遭受性别歧视日益突出这一社会问题,从社会心理学角度,分析了大学生就业环节中的性别歧视现象及其发生的基本原因,提出了预防和处置大学生就业中性别歧视现象的心理学对策。     

产业集群竞争优势的菱形模型——基于1997-2004年我国纺织产业的实证分析

为了深入分析产业集群竞争优势的影响因素及其内在机理,在综合国内外研究成果的基础上,以我国纺织产业集群为样本,通过计量模型的统计回归,提出发展我国纺织产业集群的政策建议,并构建产业集群竞争优势的菱形模型,建立符合我国国情的产业集群竞争优势的分析框架。     

当前银行业存差问题分析与认识

对当前县域银行业存差问题的成因作深入分析,并对当前银行业存差变化趋势进行辩证思考和分析。     

单向不连续碳纤维增强热塑性树脂基复合材料弹塑性应力分析

本文采用有限元法，建立了有关的单胞模型和相关的边界条件．着重研究了单向不连续碳纤维增强聚醚醚酮复合材料的细观弹塑性应力应变关系，分析了纤维端都的不连续性对复合材料中纤维与纤维，纤维与周围基体相互作用以及应力场变化的影响．此外利用体积平均法预测了在外载荷作用下单向不连续碳纤维增强复合材料的弹塑性应力-应变关系．     

Bayesian System Reliability Prediction

In system reliability studies a common problem is the coherent assessment of system reliability, based on generic database information from components and on failure data from a system and its components in a common, but unknown, environment. A solution to this problem is given.     

“四在农家”与贵州省社会主义新农村建设长效机制研究——以黔北地区旺草镇“四在农家”创建活动为实证分析个案

源于贵州省黔北地区的"富、学、乐、美""四在农家"创建活动,是西部欠发达、欠开发落后省区农民群众为改变家乡面貌、提高生活质量在实践中创造的新农村建设的一种模式,这一模式充分体现了党中央、国务院提出的"生产发展、生活宽裕、乡风文明、村容整洁、管理民主"建设社会主义新农村的美好设想。本文是课题组在实地观察、访谈、问卷调查的基础上,以黔北地区旺草镇"四在农家"创建活动为实证分析个案,探索"贵州省乃至西部欠发达、欠开发地区社会主义新农村建设的长效机制"研究报告的一部分。     

Conservatism of the Accident Sequence Evaluation Program HRA Procedure

This paper presents a limited assessment of the conservatism of the Accident Sequence Evaluation Program (ASEP) human reliability analysis (HRA) procedure described in NUREG/CR-4772. The data for this study are derived from simulator examination reports from the NRC requalification examination cycle for nuclear power plant operators. The ASEP procedure was used to estimate human error probability (HEP) values for critical tasks, and the HEP results were compared with the failure rates observed in the examinations. The ASEP procedure was applied by PNNL operator license examiners who supplemented the limited information in the examination reports with expert judgment based upon their extensive simulator examination experience. Comparison of the average of the ASEP HEP values with the fraction of the population actually failed and demonstrated that the ASEP HEP values are larger (conservative) by a statistically significant average factor of two. Partitioning of tasks into subgroups based on the ASEP HEP values and comparison of the subgroup average ASEP HEP values with observed subgroup failure rates showed little or no conservatism for small ASEP HEP values, but considerable conservatism for larger ASEP HEP values.     

递归函数中的 Cache

由于 FFP 表达式具有引用透明性,对于给定的表达式每次计算都得到同样的结果,所以每一个值只需计算一次.然而,由于 FFP 语言支持递归程序,FC-机在处理递归结点时需要拷贝代码,运行时很难检查共享计算,因此可能导致重复计算,为此人们提出了用“记忆函数”(memo function)来解决这一问题.本文主要介绍如何在 FC-机中,利用 Cache 来实现“记忆函数”。最后给出了性能分析和在FFP 系统上的实际测试结果。