弹药可靠贮存寿命预计方法

本文针对现阶段弹药贮存可靠性数据不充分和研制阶段贮存可靠性评定比较困难的现状,提出了弹药可靠贮存寿命的4种预计方法,对每种方法的适用场合、实施步骤,特别是对相似产品法在弹药可靠贮存寿命中的应用做了较为详细的介绍。     

关于弹药贮存可靠性要求的若干问题

本文根据我国弹药产品的特点,提出了弹药贮存可靠性指标的确定程序、贮存可靠性指标的内容及其对应的贮存条件。从原材料的选择、元器件的控制、结构设计、包装设计,生产工艺、组装时间,贮存管理等方面,论述了贮存可靠性的保证措施,并提出了三种贮存可靠性预计方法。     

弹药贮存可靠性标准的研究

阐述制定弹药贮存可靠性标准的必要性、依据、指导思想及原则,进而对贮存可靠性指标的确定、预计及试验等几个难点问题提出解决的原则和方法。     

概率分布在库存弹药贮存可靠性研究中的应用

本文探讨在库存弹药贮存可靠性研究中应用概率分布的特点,阐述了几种常用概率分布的可靠性特性和物理模型,分析了弹药系统的可靠性结构特征和贮存失效特性,最后提出了在库存弹药的贮存可靠性研究中选择概率分布的依据。     

环境因子和混合贝塔分布的贝叶斯法制导弹药评估

针对制导弹药可靠性试验评估成本高和靶场试验次数少的问题,采用基于环境因子和混合贝塔分布的贝叶斯法对制导弹药可靠性进行评估。利用环境因子法,结合成败型产品讨论了不同库存环境制导弹药可靠性试验数据的折合,解决了不同环境下数据融合的问题。以混合贝塔分布为先验分布,得到了评估制导弹药可靠性的Bayes方法,该法解决了性能检测试验数据与靶试数据融合问题,并对制导弹药可靠性进行了数值仿真计算,为制导弹药可靠性评估提供了一种新方法,具有一定的价值。     

探讨改革弹药贮存可靠性研究方法与标准

在介绍国外弹药贮存可靠性研究方法与标准的基础上,分析我国的现状和面临的问题,探讨弹药贮存可靠性研究方法和标准的改革。     

发射装药非稳态温度场仿真

弹药在长期贮存过程中,极易受环境温度和湿度的作用,使发射装药出现热分解、裂解、结霜等,严重影响弹药装药的贮存可靠性;在射击试验中,发射药温度也会对弹道性能产生极大的影响。由于不允许对弹药进行破坏性开孔,因此借助Ansys的热分析模块,对发射装药非稳态温度场进行仿真研究,获取发射装药在不同环境条件下的温度场及不同节点的温度变化规律,为弹药的贮存、试验提供一定的参考价值。     

海岛阵地环境下弹药贮存寿命评估

针对海岛高温、高湿的自然环境,建立了海岛阵地环境下弹药的可靠贮存寿命模型,并以某型号弹药为研究对象,对其试验数据进行了分析,得出了在一定置信度下弹药的贮存寿命。     

基于成败型试验数据的弹药贮存寿命评估

简述了弹药在贮存状态下的失效特点,建立了基于成败型试验数据的弹药贮存寿命评估数学模型和统计分析方法,评估了某种弹药在一定置信度下的可靠贮存寿命。     

电子设备使用环境贮存试验和贮存后可靠性计算

本文讨论了电子设备环境贮存试验问题。首先叙述了环境贮存试验的概念,环境的作用。接着介绍了电子设备实际环境贮存试验的结果。最后,提出了贮存期的估计和贮存后可靠性的计算方法。     

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).     

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.     

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.     

Helping hands: external support for the KNU insurgency in Burma

This article analyses to what extent the Burmese KNU insurgency made use of external support from states, refugees, and diasporas. Based on extensive fieldwork it is concluded that support from neighbouring states and refugees has for years kept the Karen rebellion alive. Western countries perceived forms of resistance to the illegitimate Burmese regime as just and have therefore played a crucial role in the continuation of conflict in Karen State. It is important that policymakers and donors as well as executing organizations continue to reflect critically on the way they exercise their work.     

基于GTST-DMLD-ESD的装备RMS建模仿真

装备的RMS是装备的重要设计参数,是影响战备完好和保障能力的关键因素.引入GTST-DMLD作为主要建模工具,建立起装备系统的RMS描述模型,以ESD为补充和扩展,对维修过程进行建模.并以GTST-DMLD-ESD模型作为装备RMS仿真的核心,对装备RMS仿真模型的总体框架进行了研究,并对各模块进行了较为详细的探讨.     

Cyber sheiks and grassroots jihadis: the war in Syria and the devolution of the Bosnian Salafi communities

ABSTRACT

What was the scope of the Bosnian jihadi participation in the war in Syria? Did the Bosnian volunteers tend to join one particular faction? Why did the Bosnian youngsters decide to join the holy war in the Levant? Was this an organized and hierarchical process or was this a grassroots movement? Last, were all the Salafis in Bosnia supportive of this dynamic or did this process cause internal frictions? These are some of the questions that this research will try to answer.     

Country survey XVI the defence sector in the economy of a declining superpower: Soviet Union and Russia, 1965-2001

The Soviet Union was able to develop a large military-industrial complex and become the world's second superpower despite deficiencies in its centrally planned economy because defence was given high priority status and special planning, rationing and administrative mechanisms were used to attain national security objectives. However, in the period 1976-85 the effectiveness of priority protection diminished and defence institutions experienced more of the problems typical of the shortage economic system. The heavy defence burden also created growing difficulties for the civilian economy. The attempts by the Gorbachev government to reform the defence sector and improve defence-economic relationships during perestroika (1985-91) uniformly failed. For most of the transition period, the Russian military-industrial complex has been adversely affected by its low priority status, cuts in defence spending, instability of the hybrid politico-economic system, and negative growth of the economy. The armed forces and defence industry have been reduced in size and their outputs of military services and equipment have fallen to low levels. Nevertheless, the Russian armed forces still have over one million troops, significant stocks of sophisticated conventional weapons, and a large nuclear arsenal. The government of President Putin has raised the priority of the defence sector, increased real defence spending, and adopted ambitious plans to revive Russian military power. It is likely, though, that tight resource constraints will hamper efforts to reform the armed forces and to upgrade weapons. By 2010 Russia will be an important, but not dominant, military power in Eurasia.     

Traffickers,terrorists, and a ‘new security challenge’: Russian counternarcotics strategy and the Federal Service for the Control of the Drugs Trade

The collapse of the Soviet Union precipitated the massive expansion of drug use and trade in Russia. The country now has one of the largest populations of injecting drug users in the world and has become the largest single-country market for Afghan heroin. In 2003 the Federal Service for the Control of the Drugs Trade was created to coordinate a comprehensive counternarcotics strategy appropriate to the scale of this threat. The service continues to face a number of challenges in its early stages of development. However, it has made considerable advances in improving responses to large-scale organised crime and in building international cooperation.