Quantitative Risk Assessment of the New York State Operated West Valley Radioactive Waste Disposal Area

This article is based on a quantitative risk assessment (QRA) that was performed on a radioactive waste disposal area within the Western New York Nuclear Service Center in western New York State. The QRA results were instrumental in the decision by the New York State Energy Research and Development Authority to support a strategy of in‐place management of the disposal area for another decade. The QRA methodology adopted for this first of a kind application was a scenario‐based approach in the framework of the triplet definition of risk (scenarios, likelihoods, consequences). The measure of risk is the frequency of occurrence of different levels of radiation dose to humans at prescribed locations. The risk from each scenario is determined by (1) the frequency of disruptive events or natural processes that cause a release of radioactive materials from the disposal area; (2) the physical form, quantity, and radionuclide content of the material that is released during each scenario; (3) distribution, dilution, and deposition of the released materials throughout the environment surrounding the disposal area; and (4) public exposure to the distributed material and the accumulated radiation dose from that exposure. The risks of the individual scenarios are assembled into a representation of the risk from the disposal area. In addition to quantifying the total risk to the public, the analysis ranks the importance of each contributing scenario, which facilitates taking corrective actions and implementing effective risk management. Perhaps most importantly, quantification of the uncertainties is an intrinsic part of the risk results. This approach to safety analysis has demonstrated many advantages of applying QRA principles to assessing the risk of facilities involving hazardous materials.     

Conducting research using web-based questionnaires: Practical,methodological, and ethical considerations

The use of the internet for social science research is becoming increasingly common. This paper outlines practical, methodological and ethical issues for researchers to consider when using web-based questionnaires. This is illustrated by consideration of the authors' own experience of conducting a study into the phenomenon of self-harm.     

开阔思维抓住本质——"计算机控制技术"课程教学探讨

"计算机控制技术"是以控制原理和计算机技术为基础的综合专业课。为了建立与前续课程的区别与联系,文章从积分变换、部分分式法求Z反变换、连续域离散化设计和计算机控制系统直接设计方法等方面探讨了计算机控制技术知识点的本质,以便学生能够理清概念,掌握本课程的知识。     

辩证地看待信息网络技术在医学领域的作用

信息网络技术正逐步改变着我们的生活和工作方式,作为现代科学重要组成部分的现代医学,信息网络技术必将对它产生积极而深远的影响,我们应该辩证地看待信息技术在医学中的作用,这样才能正确有效地利用它为医学服务.     

大众文化立场上的谐俗叙事--论《醒世姻缘传》叙事的文化品位

世情小说《醒世姻缘传》的叙事与该时期的大众文化亲缘密切。作者立足大众文化立场.体现大众关怀.表达大众审美趣味,形成谐俗性叙事的文化品位。这表明,即使是正统文人创作的世情小说,在文化观念、叙事角度和话语选择方面,亦往往受到大众文化的深刘影响。同时,又以其亲和大众文化的优势,有效地进行文化与文学传播,显示出世情小说独有的文化精神与文学魅力。     

农户在风险和不确定环境中决策的定量分析

在市场竞争日益激烈的今天,农户们几乎每天都面临结果不确定的情况。本文用定量的方法分析了农户主对付风险和不确定性环境的态度和目标,作出了一个包括收益变动率的边际分析模型,提出了农户对付风险和不确定性的一些对策。     

商业银行利率风险管理技术综述

一、引言(一)现实背景从2000年9月21日起,我国利率市场化改革进入实质性阶段,预计三年内完成。利率市场化是一场系统性的金融革命,必将对经济金融领域的方方面面产生重要影响。商业银行应积极采取措施,应对利率市场化将带来的一系列风险。近几年,我国发行了大量的国债和金融债,     

仪器分析与药学和临床医学 1.色谱部分

本文是关于仪器分析技术在医学和临床医学中应用的综述。本期发表的为第一部分 综述了色谱技术在这一方面的应用 所述及的技术有气相色谱(GC)、高效液相色谱(HPLC)、薄层色谱(TLC)、超临界流体色谱(SFC)以及诸如气相色谱质谱联用(GC-MS)、液相色谱质谱联用(LC-MS)等一类联用技术。对每种述及的技术提供了少量的从网上搜索得来的实例。本文意在表明:1.色谱技术和其它仪器分析技术一样是与时俱进的,并且和医药科学互相促进:2.互联网的发展对于所有科学技术领域都有极大的帮助。     

提高大学生网上求职成功率的思考

网上求职在大学校园里崭露头角,已成为大学生毕业求职的一条捷径。该文阐述了网上求职的基本特点和优势,通过剖析目前大学生网上求职过程中存在的一些问题,提出了切实提高网上求职成功率的若干策略和技巧。     

论哈代小说中悲剧创作手法的运用

托马斯·哈代的小说具有震撼人心的悲剧力量。其小说的悲剧美在一定程度上来源于哈代本人对于悲剧创作手法的自觉运用。文章分析了哈代小说中的多种悲剧创作手法,对哈代小说的悲剧美作了一次新的解读。