某型火箭弹电点火系统雷电辐照效应研究

利用LSG-8015型雷电浪涌发生器与平行板传输线配合模拟雷电电磁脉冲辐射场,对整装状态下水平放置的某型火箭弹进行了辐照试验。比较了不同放电电压下某型火箭弹电点火系统的感应电压波形,试验了短路防护卡对雷电电磁脉冲的防护性能,提出了某型火箭弹雷电电磁脉冲防护的思路和方法。     

某型火箭弹安全发射静电防护设计

在分析了电子发火机电路系统工作原理的基础上,对电子发火机部分电路系统进行改进设计,使装填到火箭炮上的火箭弹在新点火电路系统下,两极间产生一条短路通道,具有了短路保护功能。计算结果表明,此设计增强了火箭弹的抗静电能力。     

GPS/INS组合导航在制导火箭弹中的应用

为实时、精确获得火箭弹飞行过程中的状态参数,针对火箭弹的导航环境,研究了GPS/INS组合导航系统在制导火箭弹中的应用,建立了组合系统的动态方程及位置、速度组合误差模型,采用卡尔曼滤波器对该组合系统进行最优估计并进行了仿真分析。仿真结果表明,组合导航系统能为火箭弹制导提供高精度的位置姿态信息,进而为控制系统提供较精确的测量信息,从而大大提高了火箭弹的射击精度。考虑到导航系统成本较低、工作可靠,算法可以实时实现,因此研究结果具有一定的实际应用价值。     

人体综合电阻测试研究

采用恒压比较法设计了人体综合电阻测试系统,电路结构为两路双限比较器,符合国标、军标的防静电测试要求,具有声光提示功能,可广泛应用于弹药库、电子产品及火工品生产车间等防静电工作区。     

基于反馈解耦法的旋转火箭弹自适应控制系统设计

火箭弹弹体的旋转将引起俯仰和偏航通道的强耦合,而且在飞行过程中,导弹的动力学参数在不断变化。这些因素加大了旋转火箭弹的控制系统设计难度。采用反馈方法实现了俯仰、偏航两通道的动态解耦,并利用模型参考自适应控制方法完成了两通道的控制系统设计。研究发现,所提方法很好地克服了耦合因素对控制系统的影响,提高了控制系统对动力学参数变化和外界干扰的鲁棒性,满足旋转火箭弹飞行控制系统设计要求。     

克服火箭弹自身缺陷对散布影响的一种新方法

本文研究了火箭弹自身缺陷的随机性。提出了通过合理设计发射装置一阶固有频率,克服火箭弹自身缺陷对落点散布的影响。并以某涡轮式火箭弹和某尾翼式火箭弹为例进行了设计,给出了靶场试验结果。     

精确制导火箭弹传递对准研究

以常规火箭弹制导化改造过程中弹载捷联惯导的初始对准为背景,研究了利用发射车车载高精度定位定向系统作为主惯导,对火箭弹捷联惯导进行传递对准的速度加姿态匹配方案,介绍了在三轴转台上进行实验验证的方法、过程和结果。实验结果表明,该方案对准精度高、对准时间短、对准机动要求简单,可以有效完成制导火箭弹捷联惯导的初始对准。     

计算机房防静电方法研究

本文在分析讨论计算机房静电危害的基础上,对计算机房地面泄漏电阻、人体峰值电位和人体静电电荷的衰减进行了现场测试,指出机房中存在的静电隐患,并提出了具体的防静电措施。     

成膜树脂对防静电涂层高温电阻率影响研究

采用石英灯加热、电阻率动态测试的方法,研究了成膜树脂对防静电涂层高温电阻率的影响.结果表明,成膜树脂对防静电涂层室温和高温表面电阻率都有明显影响.不同类型的树脂,其涂层表面电阻率升高的起始温度和电阻率峰值不同.单组分树脂起始温度低,峰值小;而双组分树脂起始温度高,峰值大.     

事件

以美完成“箭”式反导系统测试 以色列国防部2月10日宣布,以色列和美国近日成功测试了双方合作研制的“箭”式3型导弹防御系统。以色列国防部声明说,两国近日在地中海上空成功对“箭”式反导系统进行了交付前的最后一次测试。据悉,以色列打算部署一套三个层面的火箭弹和导弹防御体系。除应对远程导弹的“箭”式防御系统外,这一体系还包括用于拦截短程火箭弹的“铁穹”防御系统和针对中程火箭弹的“大卫弹弓”系统。     

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).     

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.     

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.     

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.