基于数字图像处理技术的再生混凝土数值模拟

为了研究骨料形态对再生混凝土材料力学性能的影响,基于势能原理的基面力元法,利用图像处理技术和MATLAB软件,建立了再生混凝土真实骨料细观模型。应用FORTRAN分析软件对再生混凝土试件进行单轴拉伸试验的数值模拟,研究了真实骨料细观模型再生混凝土宏观应力-应变曲线变化规律和试件的破坏形态。结果显示,真实骨料模型得到的宏观应力-应变曲线和试验曲线吻合度较高,骨料形状对试件的破坏形态影响较小。模型可真实地模拟再生混凝土在单轴拉伸作用下的损伤破坏过程,准确地反映试件的实际骨料形态。     

基于模态应变能密度理论的网架结构损伤识别方法

为了研究网架结构的损伤检测方法,根据应变能密度理论,提出采用单元模态应变能密度差值作为网架结构损伤识别指标的方法,以损伤单元模态应变能密度差值的大小初步确定单元的损伤程度。分析了5种具有代表性的损伤工况,并在数值计算结果中引入了白噪声。结果显示,在一阶模态下,针对单损伤、多损伤和轻微损伤、严重损伤等不同损伤工况,损伤杆件的模态应变能密度差值均为高值。因此,该方法可以有效识别出网架结构的损伤位置,根据损伤单元的模态应变能密度差值大小初步确定单元的损伤程度,且在一定的噪声水平下具有较强的鲁棒性,对网架结构损伤识别具有参考价值。     

人类后基因组研究进展

人类对自身基因组的研究不断发展，已从结构基因组学转向功能基因组学阶段。本文概述了人类后基因组的研究内容及进展状况。     

浅谈计算机技术与生物技术在应用中的相互作用

本阐述了计算机技术和生物技术的出现、发展及两种技术在发展过程中的相互渗透、相互作用，揭示了计算机技术在生物技术从DNA分子结构的理论借鉴，到描绘基因图谱与DNA测序中的数据计算中所起的关键作用，以及生物技术对DNA计算机技术发展方向的影响。     

论新闻侵权中的精神损害赔偿

新闻侵权是在新闻传播的过程中发生的侵权行为 ,其主体为新闻机构 ,侵害的对象为他人的合法利益。新闻侵权发生后 ,新闻机构应当承担民事责任 ,既包括非财产责任 ,又包括财产责任。如果受害人要求精神损害赔偿的 ,人民法院可根据侵权人的过错程度、侵权行为的具体情节等情况具体酌定。在某些情况下 ,新闻机构可根据宪法规定的言论、出版自由和批评建议权主张免除或减轻其民事责任。     

略论行政不作为违法的国家赔偿问题

实践中，行政不作为违法给公民、法人及其他组织的合法权益造成的损害程度不亚于行政作为违法，我国的《国家赔偿法》在此方面的规定存在不足。本文将从该法有关行政不作为违法的立法缺失入手，肯定国家对此应当承担赔偿责任，浅析此举的意义，最后分析了如何将《国家赔偿法》中行政不作为违法纳入国家赔偿机制。     

Health Damage of Air Pollution: An Estimate of a Dose–Response Relationship for the Netherlands

This paper estimates the dose-response relationship between air pollution and the number of work loss days for the Netherlands. The study is based on illness data (work loss days) for the Dutch labour population and average year concentrations of air pollution in 29 districts. The dose-response relationship has been estimated by means of two different techniques: the ordinary least squares method (OLS) and the one-way fixed-effects method (OWFEM), which we consider to be more adequate. In general health effects are much smaller when OWFEM is applied than if OLS is used. With OWFEM a significant relationship is found between sulphate aerosol (SO₄), ammonia (NH₃) and the number of work loss days (WLDs). Particulates (TSP), O₃ and SO₂ have no significant effect on the number of WLDs. These results differ from those obtained in studies in the United States, which indicate that particulates (TSP) and other small particles, ozone (O₃) and to a lesser extent SO₄ and SO₂ significantly influence the number of WLDs.     

The damage costs of climate change toward more comprehensive calculations

It is argued that estimating the damage costs of a certain benchmark climate change is not sufficient. What is needed are cost functions and confidence intervals. Although these are contained in the integrated models and their technical manuals, this paper brings them into the open in order to stimulate discussion. After briefly reviewing the benchmark climate change damage costs, region-specific cost functions are presented which distinguish tangible from intangible losses and the losses due to a changing climate from those due to a changed climate. Furthermore, cost functions are assumed to be quadratic, as an approximation of the unknown but presumably convex functions. Results from the damage module of the integrated climate economy modelFUND are presented. Next, uncertainties are incorporated and expected damages are calculated. It is shown that because of convex loss functions and right-skewed uncertainties, the risk premium is substantial, calling for more action than analysis based on best-guess estimates. The final section explores some needs for further scientific research.     

中国电子商务企业生存的实证分析

本文通过Logisitc回归模型，对电子商务企业生存的影响因素进行了分析。笔者认为，电子商务企业的生存是受企业自身基因构成决定的，而电子商务企业的基因构成包括了企业家才能、资金、信息资本、人力资本、社会资本和技术资本。同时，企业的基因会随着环境的变化而不断地进行着调整和整合，以适应竞争的需要。实证分析的结果证实了笔者的判断。     

对离婚损害赔偿制度的几点思考

界定了离婚损害赔偿的含义和功能,指出了离婚损害赔偿制度的法律意义、立法理由,就离婚损害赔偿的构成要件、关系主体、赔偿范围提出了自己的观点。