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We propose a dynamic escape route system for emergency evacuation of a naval ship. The system employs signals that adapt to the causative contingency and the crew's physical distribution about the ship. A mixed‐integer nonlinear programming model, with underlying network structure, optimizes the evacuation process. The network's nodes represent compartments, closures (e.g., doors and hatches) and intersections, while arcs represent various types of passageways. The objective function integrates two potentially conflicting factors: average evacuation time and the watertight and airtight integrity of the ship after evacuation. A heuristic solves the model approximately using a sequence of mixed‐integer linear approximating problems. Using data for a Spanish frigate, with standard static routes specified by the ship's designers, computational tests show that the dynamic system can reduce average evacuation times, nearly 23%, and can improve a combined measure of ship integrity by up to 50%. In addition, plausible design changes to the frigate yield further, substantial improvements. Published 2008 Wiley Periodicals, Inc. Naval Research Logistics 2008  相似文献   
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Postmodern contradictions in postcolonial Nigeria have led to the fetishisation of alternative local security measures often labelled as vigilante activities. The profiling of these groups as ethnic militia often undermines their essential bid to provide security while delimiting security needs to the physical. The fallouts of such profiling are frictions between federal security agents and ethnic-based security groups, often resulting in violence, as exemplified by the 7 May 2013 incident between the Nigerian federal security agents and the Ombatse. This study focuses on the emergence and activities of the Ombatse as an alternative security apparatus of the Eggon. It presents three years of field research which entailed the use of ethnography, key informant interviews and observation. The findings reveal that the Ombatse emerged to assert historical legitimacy for both the physical and spiritual securitisation of the Eggon through a return to the ancestral ways of social engineering. The study considers the security challenges in Nigeria, and also situates the Eggon historical context within political, religious, sociocultural and economic intersections of securitisation. It concludes that the Ombatse situates its legitimacy within the Eggon past and retains its relevance through the holistic focus of providing both physical and spiritual security.  相似文献   
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Based on the first-person account of coauthor Pierre Billaud, a prominent French participant, this article describes for the first time in such detail the history of the development of the French hydrogen bomb in the 1960s and the organization of military nuclear research in France. The authors illustrate the extent to which French defense and governmental authorities did not support research on thermonuclear weapons until 1966. Billaud, a project insider, relates the historical episodes that led to France's successful 1968 thermonuclear test, including the names of the individuals involved and how a timely tip from a foreign source hastened the success of the first H-bomb test.  相似文献   
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军事放射性废物的监管与处置是军队放射性污染防治工作的重要内容,研究并借鉴外军先进的监管经验和处置技术,对实现我军放射性废物科学监管和合理处置具有重要作用。以美国军事放射性废物为研究对象,深入分析了其概念与分类、监管机制、技术与设施保障体系;发现美军在放射性废物监管与处置方面具有严格的管理体制、完备的法律规章、注重开发先进处置技术等特点。为加强我军放射性废物监管与处置水平,应当注意三个方面的问题:加强技术创新,建立科学有效的监管体系,开发相关固化材料与技术。  相似文献   
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应急物资筹集决策是直接影响应急动员效果的重要决策问题之一,是实施应急保障和应急救援的关键环节。把应急物资筹集决策问题抽象为物资筹集点选择的组合优化问题,结合混合规划方法与模糊优化思想,提出了双目标模糊优化模型及改进算法;在此基础上,进一步研究了物资可动员量为模糊数时的模糊资源约束模型,并给出了相应的算法;最后用算例证明了该方法的有效性。  相似文献   
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It came as a surprise to many international observers when, on 31 March 2005, the United Nations Security Council passed resolution 1593, which referred the situation in Darfur to the jurisdiction of the International Criminal Court. Some celebrated this event as initiating a new era in which international criminal justice would prevail, but they might have done well to consider the objections immediately raised by the representatives of the Sudanese government, which was not a party to the ICC, a point that created a series of impediments to the implementation of the resolution. For all that the ICC has been charged with investigating crimes against humanity in Darfur, its investigators are being prevented from seeking the evidence on the ground essential to any successful prosecution. The Sudanese government has so far maintained its obstructive position, arguing that it is capable of handling such cases within its own sovereign jurisdiction. The imperative of excluding the ICC from Darfur has contributed to Khartoum's objections to the deployment of a UN force to replace the African Union mission there. In sum: the challenges faced by the ICC in Darfur demonstrate that international criminal justice does not operate in a political vacuum.  相似文献   
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On War’s unfinished state has been a source of difficulties for interpretation for 180 years. By establishing a hierarchy of revision among the parts, we propose a criterion that can bring any part of On War in line with the most advanced stage of Clausewitz’s thinking. We exemplify the utility, illustrate the underpinnings and appreciate the potential of this criterion. We argue that the criterion offers the prospect of a shared, coherent, fully consistent and faithful rendering of Clausewitz’s theory of war.  相似文献   
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This article examines the nuclear command and control (C2) system implemented in Pakistan since 1998, and discusses its potential consequences for the risk of inadvertent or unauthorised use of nuclear weapons. I argue that troubled civil-military relations and Pakistan's doctrine of ‘asymmetric escalation’ account for the creation of a command and control system with different characteristics during peacetime and military crises. Although the key characteristics of Pakistan's nuclear C2 system allow relatively safe nuclear operations during peacetime, operational deployment of nuclear weapons during military standoffs is likely to include only rudimentary protections against inadvertent or unauthorised nuclear release. The implication of this study is that any shift from peacetime to wartime command and control procedures is likely to further destabilise Indo-Pakistani relations during the early stages of a diplomatic or military standoff, and introduce a non-trivial risk of accidental escalation to the nuclear level.  相似文献   
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