空客喷漆车间火灾危险性分析

从喷漆大厅火灾爆炸危险源、全部气化的危险性两个方面分析了空客A320飞机喷漆车间的火灾爆炸危险性,并对喷漆车间爆炸危险区域进行了划分,提出了在飞机喷漆车间设计中应采取的安全措施。     

军校网络信息安全风险评估研究

介绍了信息安全风险评估的相关概念,分析了军校网络信息安全风险评估中存在的问题,并提出了应对策略,希望能对军校开展网络信息安全风险评估工作提供参考。     

火灾风险评估法在性能化设计中的应用

火灾风险评估法对于采取经济有效的消防措施,防止火灾的发生、发展,降低火灾造成的人员伤亡和财产损失有着重要的意义。介绍了火灾风险评估方法的有关概念和分析流程,并举例说明了火灾风险评估方法在性能化设计中的应用。     

大型商业性建筑安全疏散策略研究

近年来,大型商业性建筑火灾事故时有发生,造成了重大损失,火灾发生时如何提高人员的疏散效率是降低伤亡率的要素.通过对大型商业性建筑火灾危险性和疏散中存在的问题进行分析,结合实际从设置消防救援窗,严格划分防火分区,合理设置疏散楼梯和安全出口,制定安全疏散预案,加强消防安全培训,充分利用声光报警等方面论述了优化大型商业性建筑人员疏散效率的策略.     

Budgetary savings from conscription and burden sharing in NATO

We study the spatial and temporal determinants of terrorism risk in Israel, using a geocoded database of Israeli terrorist attacks from 1949 to 2004. In selecting targets, terrorists seem to respond rationally to costs and benefits: they are more likely to hit targets more accessible from their own homebases and international borders, closer to symbolic centers of government administration, and in more heavily Jewish areas. We also examine the waiting time between attacks experienced by localities. Long periods without an attack signal lower risk for most localities, but higher risk for important areas such as regional or national capitals.     

Repairable consecutive‐k‐out‐of‐n: F system with Markov dependence

In this article, a model for a repairable consecutive‐k‐out‐of‐n: F system with Markov dependence is studied. A binary vector is used to represent the system state. The failure rate of a component in the system depends on the state of the preceding component. The failure risk of a system state is then introduced. On the basis of the failure risk, a priority repair rule is adopted. Then the transition density matrix can be determined, and the analysis of the system reliability can be conducted accordingly. One example each of a linear and a circular system is then studied in detail to explain the model and methodology developed in this paper. © 2000 John Wiley & Sons, Inc. Naval Research Logistics 47: 18–39, 2000     

城市居民区地震火灾风险评价研究

在城市地震发生后,火灾往往是最危险的。因此,进行地震火灾危险性分析十分重要。分析了地震火灾产生的原因及其影响因素,提出了地震火灾灾度概念和城市地震火灾危险性分析的模型,建立了城市居民区地震火灾风险评价体系。研究结果可以给城市居民小区地震火灾风险评估提供一套理论模型,用以评价未来某一城市的地震火灾风险。     

冷库建筑消防安全隐患及对策探讨

结合工作实际,分析了冷库建筑在消防设计、施工和管理中容易存在的问题,并提出了改进的意见和建议。     

全球化时代的移民与国家安全：风险评估及其控制

移民具有经济、社会、政治等多重属性,其对国家安全的影响也涉及多个领域,且具有很强的不确定性。而地缘政治地位关键、领土存在国际争议、非劳动力要素供给缺乏弹性、族群认同超越国家认同和政府履行社会管理职能存在结构性缺陷等条件变量的作用,会显著增加移民的安全风险。这意味着控制移民安全风险的关键在于抑制或消除这些条件变量的作用。     

Skewness correction X̄ and R charts for skewed distributions

This paper proposes a skewness correction (SC) method for constructing the and R control charts for skewed process distributions. Their asymmetric control limits (about the central line) are based on the degree of skewness estimated from the subgroups, and no parameter assumptions are made on the form of process distribution. These charts are simply adjustments of the conventional Shewhart control charts. Moreover, the chart is almost the same as the Shewhart chart if the process distribution is known to be symmetrical. The new charts are compared with the Shewhart charts and weighted variance (WV) control charts. When the process distribution is in some neighborhood of Weibull, lognormal, Burr or binomial family, simulation shows that the SC control charts have Type I risk (i.e., probability of a false alarm) closer to 0.27% of the normal case. Even in the case where the process distribution is exponential with known mean, not only the control limits and Type I risk, but also the Type II risk of the SC charts are closer to those of the exact and R charts than those of the WV and Shewhart charts. © 2003 Wiley Periodicals, Inc. Naval Research Logistics 50: 555–573, 2003