巨幕类影厅人员疏散的安全水平分析与优化设计

巨幕类影厅的设计由于其视听效果需要往往超出规范要求,其消防性能化设计的首要安全目标是人员的安全疏散。基于＂消防性能化设计方案的安全水平不低于处方式设计方案＂的设计理念,对位于三层以上、面积超过400m^2的某巨幕影厅进行了人员疏散的安全水平分析,并对影响人员疏散效率的通道进行了优化设计。研究结果表明,进行性能化设计和处方式设计方案的人员疏散安全水平对比,有助于更全面的评价消防性能化设计方案的安全水平。     

城市交通隧道防火设计探讨

通过对城市交通隧道火灾形势、原因及危害性的分析,指出现行《建筑设计防火规范》对城市交通隧道消防设计指导存在不详之处,应进一步明确避难设施、自动灭火系统及火灾自动报警系统等方面的设计要求,由此提出了通过进一步修订现有＂处方式＂规范,结合性能化消防设计,科学合理解决城市交通隧道面临的防火问题的有效方案。     

涉氨企业的消防安全现状与防火对策

根据近年来涉氨企业在生产、经营和生活过程中发生氨气泄漏,引发火灾、爆炸等安全事故所造成的人员伤亡等惨痛教训,对涉氨企业当前的消防安全现状进行了深入的调研,对该类场所存在的消防安全问题及其原因进行了分析,提出了解决消防安全问题的对策。     

基于复杂网络的维修保障力量体系建模方法

针对传统的层级式维修保障力量体系在维修保障过程中暴露出的缺陷,从维修保障力量体系与复杂网络的相似性角度出发,提出用复杂网络理论来研究维修保障力量体系。在对维修保障力量活动过程进行网络化抽象的基础上,建立了维修保障力量网络的拓扑模型,提出了描述维修保障力量网络的特征量。以师维修保障力量体系作为研究对象建立了网络拓扑模型,并对该网络结构作了适当改进。通过一系列对比发现改进后的网络更有利于维修保障,这为维修保障力量体系建设提供了一种新思路和新方法。     

新的中子密度方程

采用去耦合法,在未作任何假定的条件下,导出了一个新的点堆中子密度方程.该方程与老的中子密度方程相比,其精度和应用范围都有很大的提高.     

基于粒子群算法维修保障单元优化配置

针对维修保障单元配置过程中需权衡综合多因素问题,提出了一种基于粒子群算法的维修保障单元优化配置决策模型和方法。首先,以维修任务完成概率为设计目标、以维修保障单元总数量为约束,建立维修保障单元配置决策模型;其次,运用粒子群算法对维修保障单元配置问题进行优化求解。通过具体实例分析,证明了该方法的正确性和有效性。     

基于配置管理的软件维护性评估

对软件质量进行定量化管理是软件工程领域的趋势,也是软件质量保证的重要手段。针对软件维护性定量评估难、数据获取难的问题,分析了软件维护性受配置管理关键要素的影响,提出利用配置管理数据对软件维护性间接评估的方法。结合软件工程开发实际,建立了配置管理数据收集过程,利用维护时间作为参数,统计5类功能点维护时间对软件维护性进行度量,实现了软件维护性的定量评估,并利用实际项目对方法的可行性和有效性进行了验证。     

Disaster management in case of CBRNe events: an innovative methodology to improve the safety knowledge of advisors and first responders

Nowadays, Chemical-Biological-Radiological-Nuclear-explosive (CBRNe) risks are one of the world's main safety concerns. The radiological disasters of Fukushima and Chernobyl, the chemical events of Seveso or the release of Sarin in the Tokyo Subway, the biological emergencies such as the H1N1 flu or the recent Ebola outbreak, and recent news about the availability of non-conventional weapons acquired by fundamentalist organisations represent evidence of potential future threats. CBRNe risks are a real and global threat. The University of Rome, Tor Vergata, in collaboration with the most important Italian and international bodies working in the field of CBRNe safety and security, and supported by the North Atlantic Treaty Organisation and the Organisation for the Prohibition of Chemical Weapons, organises International Masters Courses on the Protection against CBRNe events. Within this framework, a Table-Top Exercise was planned, in collaboration with the Italian Ministry of Interior and Ministry of Defence. The scenario, the logistic organisation, on-going adjustments during the exercise and the outcomes are presented here and analysed.     

装甲车辆维修质量管理研究

结合维修改革试验试行资料和当前部队在维修方面存在的不足,从硬件和软件两部分,分析装甲车辆维修质量存在的问题及影响因素,提出加强维修理论教育,完善维修工艺标准,完善维修配套设施与设备,建立维修质量评估标准和数据信息系统的措施.     

The Organization of the Defense Support System: An Economic Geography Perspective

In the context of restricted budgetary resources and the growing cost of maintenance, repair, and overhaul (MRO) activities, a major issue for modern armed forces is to sustain defense platforms. A possible method consists of realizing economies of scale through the concentration of maintenance activities, which involves the spatial reorganization of existing industrial sites dedicated to MRO. This article provides a formalized framework to discuss the optimal organization for the MRO of defense platforms in space. The public planner organizes the maintenance of defense platforms with only two possible spatial configurations. In the dispersed configuration, two industrial production units in charge of the maintenance optimally cover space, whereas in the concentrated configuration, a unique industrial unit covers space. Focusing on the tipping point between the two configurations, the balance of forces between agglomeration and dispersion in defense support activities is described and discussed. On the one hand, economies of scale provide an opportunity to optimize defense support costs, favoring concentration in a unique industrial unit. On the other hand, space causes dispersion to reduce both transport costs and operational social costs. This trade-off illustrates a general principle in spatial economics with an application to MRO production in the French case.