军用航空机务维修人员安全知识结构评价研究

随着军用航空装备复杂性、安全性的提升,对广大机务维修人员安全知识结构提出了更高的要求。以某机务部队现状为依据,研究航空机务维修人员安全知识结构评价问题。利用工作分析法对航空机务维修人员的工作进行了深入分析,建立了航空机务维修人员安全知识结构指标体系,通过构建基于熵权的改进BP神经网络模型对建立的知识体系结构进行评价。以某单位实际调研数据为基础,利用MATLAB仿真实现了模型的训练和测试,对机务维修人员的安全知识结构进行量化分析,为机务人员的安全知识能力培养提供决策依据和参考。     

基于相关性模型的舰船装备测试性分析与建模

为了提高舰船装备的综合诊断能力,在舰船设计、研制阶段就必须进行装备测试性设计工作。为此,根据舰船装备测试性要求,对装备进行了故障模式影响分析,确定了装备在设计和制造过程中所有可能的故障模式,以及每一故障模式的原因和影响,据此对装备功能和结构进行了划分。然后,利用相关性模型对舰船装备进行测试性分析与建模,建立了舰船装备组成单元的相关性图示模型、数学模型,并运用考虑可靠性和费用的优选方法,建立了舰船装备诊断树,得到舰船装备的测试方案。算例分析表明:该研究可有效提高舰船装备测试的效率,提升测试的经济性。     

地空导弹装备战场损伤等级的综合指标评判

全面考虑了影响地空导弹装备战场损伤等级评判的各种因素,对地空导弹装备战场损伤等级进行了划分,并应用层次分析法和模糊综合评判的理论,建立了地空导弹装备战场损伤等级的二级综合指标评判模型,实现了地空导弹装备战场损伤等级的定量评价.     

基于模糊综合评判的装备战场损伤等级评定方法

针对装备战场损伤评估问题,应用模糊综合评判的基本原理,建立了装备战场损伤等级评定模型,提出了基于二级模糊综合评判的装备战场损伤等级评定方法。该方法考虑了有关战场损伤的各种因素、因素权重和因素等级权重,结合合理的评价指标处理方法,使计算结果能够全面准确地反映装备战场损伤严重程度,为有效制定装备战场损伤处理方案提供基本依据。     

基于灰色聚类的野战饮食装备技术保障能力评价

采用一种定性和定量相结合的层次分析法和灰色聚类评价模型,通过案例评价分析,得出现阶段某部队野战饮食装备技术保障能力各指标及综合指标所属等级,针对性提出“培养高素质保障人才”,“提高装备品质,完善器材设施”,“加快信息化建设”,“加强费用一效能管理”等措施,获得了比较满意的效果,证明了灰色聚类评价模型在野战饮食装备技术保障能力应用中的有效性。     

考虑FDR的复杂机电装备测试性建模技术

针对当前测试性研究中存在装备合同中测试性指标量化不足、测试性建模研究中对完备故障模式集研究不充分的现象,提出了一种利用装备合同指标给出完备故障模式子集并对测试性设计中的故障模式、影响和危害分析(failure modes,effect and criticality Analysis,FMECA)方案进行评价的新方法。在给出测试性多信号模型和提出完备故障模式(子)集概念的基础上,研究了成败型一次计数抽样模型构造测试性完备故障模式子集的方案,给出了FMECA方案的评定标准,确定了测试性模型中完备故障模式子集的样本量,最后以某船用动力装置监控系统开展了案例应用研究。结果表明:该方案与传统自行确定故障模式集的方法相比,可快速确定总体质量和样本量,提高测试性建模效率,降低工程风险。     

基于主成分分析的机务人员维修保障能力评价

针对当前部队对机务维修保障人员能力评估方法较为单一问题,构建了机务人员维修保障能力评价模型,结合实例提出了应用主成分分析法进行机务人员维修保障能力评价的方法和步骤,并给出了评估结果。通过计算分析得到的评估结果客观合理,验证了该方法对于机务维修保障多指标评价体系的评估结果具有一定的可信度和实用性。为进一步加强机务维修保障人才队伍建设提供了参考和依据。     

基于SEA和ADC的航空通信系统效能评估

研究航空通信系统的组成结构和信号收发流程,分析航空通信系统的使命任务和功能性能。综合运用ADC和SEA方法构建了航空通信系统的效能评估模型;利用该模型评估了典型干扰场景下的航空通信装备效能,分析航空通信装备工作模式对效能的影响。结果表明,该模型能够全面反映任务、系统功能和工作环境对效能的影响,效能值能较好地反映任务的完成概率。     

IGAHP赋权下的导弹质量状态环境指标物元评估

环境因素是影响导弹装备质量水平的主要因素之一,目前多采用定性的理论研究和控制。遴选环境评估指标体系中的5个主要因素,采用改进的群层次分析法对各指标权重进行分析,构建了基于物元理论的环境指标评估模型,并通过算例得到其中的主要影响因素并评出导弹所属的状态等级,从而为导弹装备的状态评估工作提供理论参考,为装备的改型和装备保障工作的改进提供依据。     

任务驱动的装备保障能力建模与仿真评价

对装备保障能力评价的研究有很多,但这些研究大都是从保障系统方面对保障能力进行了评价,属于静态评价,这类研究对装备使用过程中的动态随机因素考虑不足,影响了对装备保障能力的全面考察.以任务为驱动的保障能力评价,运用离散事件建模方法和计算机建模与仿真技术建立舰炮保障能力综合仿真模型,用仿真出的使用可用度、战备完好率和备件平均...     

Putin – the masked nemesis of the strategy of ambiguity

Recent events demonstrate the complex and adaptive approach employed by Russia to reassert influence in Europe. The changing face of Russia’s strategy commenced in 2007 when it launched a crippling cyber-attack against Estonia. This was followed by a large Russian conventional attack against Georgia in 2008, occupying two large areas of the nation. 2014 witnessed the Russian annexation of Crimea where in just a week, Russia seized control of Crimea “without firing a shot.” The annexation of Crimea was rapidly followed by a Russian inspired and led subversive war in eastern Ukraine. The common thread among these diverse Russian operations is its use of ambiguity to confound and confuse decision makers in the West.     

India's counter-insurgency experience: the ‘trust and nurture’ strategy

The Indian Army, a force trained primarily for conventional warfare, has been engaged in internal counter-insurgency operations since the 1950s. Despite such a long innings on a counter-insurgency mode, little attention has been accorded within military circles to doctrinal innovation for waging sub-conventional warfare in India's democratic political context. At best, the Army continues to view counter-insurgency duty as secondary to its primary duty of defending India from external conventional threats. By conceptualizing a counter-insurgency strategy of ‘trust and nurture’, this article aims to fill this critical doctrinal gap in India's military policy. The author argues that a counter-insurgency strategy of ‘trust and nurture’ based on democratic political culture, measured military methods, special counter-insurgency forces, local social and cultural awareness and an integrative nation-building approach will result in positive handling of India's internal security problems. The author utilizes India's counter-insurgency experiences in Assam, Mizoram, Nagaland, Punjab, and Operation ‘Sadhbhavana’ in Jammu and Kashmir as illustrative empirical indicants in order to validate the ‘trust and nurture’ strategy.     

An Unlikely Alliance: Portuguese and South African Airpower in Angola, 1968–1974

The war that Portugal was obliged to fight in Africa began in 1961 and immediately stretched the resources of its armed forces. Nowhere was this thinness more apparent than in policing the vast territory of Angola. The east and southeast of Angola were particularly vulnerable, as the area was a vast, sparsely populated region characterised by enormous featureless plains or chanas covered in tall grass and broken by an extensive river system and mountainous forests. The only military solution to policing these immense spaces was aviation and specifically the helicopter that could carry troops into battle, protect them with a gunship and bring them home when the operation was concluded. The immediate problem for the Portuguese Air Force (Força Aérea Portuguesa or FAP) in Angola and elsewhere was a scarcity of helicopters. The solution was an alliance with South Africa, which had a strong inventory of Alouette IIIs, to help in policing the east. This move was likewise in the interest of South Africa, as its threat came from Zambia through south-eastern Angola. This article examines the strategic and tactical development of this unusual, cross-cultural alliance and the symbiotic relationship that resulted in destruction of the enemies of both in Angola.     

Helping hands: civil–military cooperation and Italy's military operation abroad

In the Post-Bipolar Era the growing complexity of the military operations requires a new approach for the resolution of international crises. Since the end of the Cold War, peace support operations (PSO) have become the mainstay and principal occupation of most Western armies. At the same time, Italy has been one of the most important actors in such an area. The article focuses on the cooperation between military and civil components (a process called CIMIC) as a key variable in the Italian PSOs. We will analyse in detail the main lessons learned from past military interventions as well as the general context in which new tendencies are taking place. The maintaining of a minimum security frame becomes essential to fulfil activities ‘collateral’ to the mission: reconstructing services and infrastructure, food distribution, water and medication, law and order, de-mining, training of local forces, and supporting local institutions. These are the main tasks to obtain thrust and support from the population.     

Terrorism,insurgency, kidnapping,and security in Africa's energy sector

Energy continues to serve as the bedrock of modern economies and the main driver of modern society. For Africa, the production and supply of energy resources such as crude oil, natural gas, uranium, coal, biomass, biofuels and other renewables are an important source of employment, rents, taxes, royalties and profits. This sector brings in several tens of billions of dollars of revenue annually. The production and delivery of such resources, however, depend on critical infrastructures such as pipelines, refineries, processing plants, terminals, rigs, electrical energy pylons, substations, pump stations, vessels, and tankers. These infrastructures have been attacked by terrorists, insurgents, vandals and saboteurs, all of whom see them as targets against which to register their grievances and extract concessions from the state. This paper is a chronological account of some of the documented incidents of terrorism, insurgency, kidnapping, destruction, sabotage, and human casualties suffered in the oil and gas sectors in Africa between 1999 and 2012. It is based on data extracted from the databases of the RAND Database of World Terrorism Incidents and the University of Maryland's Global Terrorism Database (GTD).     

国内外结构钢焊条研究的现状与发展

本文主要介绍了国外焊条的现状和发展趋势,包括焊条的高韧性、高效率、低尘低毒和耐吸潮性能,为国内的焊条研究提供了参考依据。     

A Sign of Victory?: ‘Scottish Swords’ and Other Weapons in the Possession of the ‘Auld Innemie’

Many late medieval documents, notably inventories of arms and armour, of Englishmen contain references to ‘Scottish swords’ and other weapons. What did the compilers of these documents mean when they described a weapon as ‘Scottish’? How did such weapons come to be in the possession of these men? This article will attempt to explain this phenomenon drawing on primary documentary sources and surviving material culture from Glasgow Museums’ collections and others, as well as artworks from the period.     

Tacit support for terrorism: The rapprochement between the USSR and Palestinian guerrilla organizations following the 1967 war

This article demonstrates the inconsistent and wavering Soviet attitude towards national liberation movements in general and the Palestinian organizations in particular. Until the late 1960s, the Soviets viewed these organizations with suspicion, hesitating to engage in political dialogue with them. However, in the 1970s, political and military events in the region, as well as modifications in the Kremlin's Cold War strategies, led to a general shift towards the Middle East in Soviet foreign policy. Soviet leaders showed increased willingness to provide certain Palestinian organizations with arms with which to conduct terrorist activities against Israeli, pro-Israeli, Jewish and Western targets. The article explores the complex relations between Palestinian organizations and the USSR in the field of international terror. The study also exposes and analyzes the nature and content of Soviet–Palestinian arms dialogues and transactions. It provides clear evidence that Soviet policymakers and other luminaries were fully informed of, and sometimes directly involved in, these transactions and dialogues at the highest levels.     

A1 Qaeda and the radical Islamic challenge to western strategy

The September 11 global crisis prompted by the attacks on the World Trade Center and the Pentagon raises major questions concerning the nature and trajectory of terrorism in the post-Cold War global order. Hitherto, terrorism has been largely debated by analysts at the level of nation states. Terrorist and insurgent movements have also been largely anchored in nationalist and ethnic power bases even when they have sought to mobilise a transnational ideological appeal on religious or class grounds. There have been a few exceptions to this pattern such as the alliance between the German Baader-Meinhof group and the Japanese Red Army Faction, but even such international alliances as this did not, until at least the 1980s, presage anything like a global terrorist network necessitating a global strategic response. This study examines terrorism and global strategic responses.