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1.
陶瓷基装甲抗枪弹机理研究现状   总被引:4,自引:0,他引:4  
从陶瓷基装甲的特点出发,介绍了其抗弹性能的评定指标,讨论了弹靶撞击过程的划分,重点评述了抗弹机理的研究方法和陶瓷基装甲的耗能机制;并总结了影响陶瓷基装甲抗枪弹性能的4个主要因素:陶瓷厚度、约束条件、弹丸形状和撞击速度.  相似文献   
2.
The United Arab Emirates (UAE) has laid out an ambitious plan to become the first Arab country to possess a civilian nuclear energy program. Central to that effort has been the Emirati government's ability to obtain foreign nuclear assistance. This article traces the UAE's strategies for overcoming the obstacles that stood in the way of nuclear suppliers providing assistance. It examines the approach taken by the UAE to assuage the safety and security concerns of nuclear suppliers, how the UAE leveraged its alliances with France and the United States to obtain their cooperation, and its strategies for engaging domestic interest groups in supplier states. The generalizable elements of the UAE's strategies are discussed and used to provide insight into the prospects for other Middle Eastern states' bids to obtain similar assistance. The article concludes with a discussion of the potentially transformative aspects of the strategies employed by the UAE in shaping other countries' pursuit of nuclear energy in the region.  相似文献   
3.
As worries have grown about global warming and the sustainability and price of fossil fuels, the demand for nuclear energy has increased, and nuclear power is increasingly viewed as a reliable and clean resource. However, the so-called nuclear renaissance coincides with an international security environment in which the norms of nuclear nonproliferation seem to be eroding. Turkey, a non-nuclear weapon state, plans to generate nuclear power to meet future energy demands, but it is aware of and concerned with regional proliferation trends. Questions have also been raised regarding Ankara's rationale for using nuclear energy, as well as its potential motivations and capabilities regarding future proliferation. This article will provide an overview of Turkey's nuclear energy history and plans, as well as the proliferation-related questions that could arise; it will also look at the domestic debate on nuclear energy and Turkey's status as a non-nuclear weapon state.  相似文献   
4.
International safeguards is the system of measures put in place by the International Atomic Energy Agency and states to ensure nuclear programs remain dedicated to peaceful purposes. This international safeguards system consists of agreements, inspections, and evaluations that have never considered the safeguards culture of a state or facility. Neither a common definition nor an understanding of safeguards culture is internationally recognized. This article provides an analysis of the concept of safeguards culture and gauges its value to the international safeguards community. The authors explore distinctions among safeguards culture, safeguards compliance, and safeguards performance, and suggest possible indicators of safeguards culture and methods to promote a strong, positive safeguards culture.  相似文献   
5.
The phenomenon of global warming has led to a revival of the prospects for increased nuclear energy production worldwide, yet such increased production carries with it the increased risk of proliferation. To mitigate this risk, various multinational arrangements have been proposed to provide reliable supply of nuclear fuel while at the same time discouraging the construction of national plants for nuclear enrichment and reprocessing. This article provides a brief history of some of these proposals and concludes that the likelihood of success for such schemes as effective tools for nonproliferation is not high at this time. A proposal from the World Council on Renewable Energy to expand the understanding of supplier obligations under Article IV of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) to include the development of non-nuclear energy technologies for NPT parties in good standing is potentially a much better nonproliferation tool. Such an approach tracks the ideas contained in Title V of the Nuclear Non-Proliferation Act of 1978, which has recently received revived congressional interest.  相似文献   
6.
通过设置弹丸初速并研究其对单级磁阻型线圈发射器发射性能的影响,模拟分析前一级线圈弹丸出口速度对后一级线圈发射性能影响的规律;利用Ansoft有限元仿真软件进行了动态仿真,得到弹丸初速对单级磁阻型线圈发射器驱动电流、驱动线圈感应电压、电磁力、弹丸出VI速度、弹丸位移及能量转换效率等影响的规律.研究表明:弹丸初速越大,经过单级线圈加速后弹丸出口速度也越大,但弹丸出口速度增量减小;随着弹丸初速增大,能量转换效率呈现先增大后减小的趋势.  相似文献   
7.
基于对材料特性和防弹机理的认识,设计了由Al2O3陶瓷、616装甲钢和高强PE材料构成的陶瓷基复合装甲板,并用现役127.mm穿甲燃烧弹进行靶试考核,检验靶板设计思路,结果表明:防护面密度为128 kg/m2的靶板可防住该弹。  相似文献   
8.
军队后勤建设离不开国家能源供给,军队能源储备、军事训练、国防工程、科研试验以及日常生活等方面均与国家能源供给有着密切的关系。探讨了国家能源供给对军队后勤建设的影响内容,分析了国家能源供给对军队后勤建设的影响,提出了确定国家能源供给对军队后勤建设影响的方法步骤。  相似文献   
9.
多碱光电阴极饱和机理的研究对于提高阴极电子发射能力具有重要意义。依据光电阴极三步电子发射理论,采用蒙特卡洛法研究了多碱光电阴极的电子发射过程。研究结果与相关文献中的实验数据进行了对比分析,光子能量临近光电阴极响应阈值附近时,得到的量子效率曲线以及电子能量分布曲线与实验数据吻合良好。基于上述模型,研究了光压效应和空间电荷效应对多碱光电阴极电子发射特性的影响。结果表明,多碱光电阴极在光压效应限制下的阈值饱和激光能量密度约为8μJ/cm~2,在空间电荷效应限制下的阈值饱和激光能量密度约为2. 23μJ/cm~2。开展了266 nm激光辐照多碱光电阴极实验,经测量,多碱光电阴极的阈值饱和激光能量密度约为2μJ/cm~2,这表明空间电荷效应是限制其光电子发射能力的主要因素。  相似文献   
10.
装备节能研究对建设绿色节能型社会具有重要意义。对移动式铁路油罐车清洗装置中清洗管路和吸污管路的热损进行分析计算,提出了水掺混循环使用的节能清洗方案,对清洗工艺中的传热过程、水循环使用中水掺混比例进行了详尽的分析计算,并对节能效果进行了分析。结果表明,清洗管路系统热损较低,水掺混循环使用的节能效果明显。  相似文献   
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