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141.
ABSTRACTThis study seeks to evaluate the threat of malicious chemical use by non-state actors. It finds that non-state actors have primarily turned to ready-to-use crude chemical weapons (CW) instead of traditional CW agents. Interestingly, the worst crude CW attacks have been more destructive than those employing traditional CW. Scenarios for catastrophic consequences exist, but chemical attacks have typically been used to accomplish tactical goals, which leverage psychological and economic impacts. Therefore, successful efforts to counter CW proliferation by non-state actors must be substantially different from those targeting states. 相似文献
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Sarah Bidgood 《The Nonproliferation Review》2013,20(3-4):307-318
ABSTRACTRelations between the United States and Russia are in a prolonged downward spiral. Under these circumstances, cooperation on nuclear issues—once a reliable area of engagement even in difficult political environments—has all but completely halted. There are urgent reasons to find a way out of this situation, particularly the expiration of the New Strategic Arms Reduction Treaty in 2021. However, seemingly intractable disagreements about noncompliance with the Intermediate-range Nuclear Forces Treaty and US ballistic-missile defense, compounded by the Ukraine crisis, the conflict in Syria, and the accusations of Russian interference in the US election of 2016, threaten the future of arms control. Against this backdrop, policy makers and practitioners should identify ways to re-engage on nuclear issues now so they can be ready to implement them as soon as feasible. This article considers how the Comprehensive Nuclear-Test-Ban Treaty (CTBT) could serve as a platform for US–Russia cooperation on nuclear issues when circumstances permit. Taking into account the challenges posed by ongoing US non-ratification, it identifies a menu of CTBT-related activities short of ratification that the two countries could undertake together. It explores how joint work on this issue would advance shared US and Russian interests while helping to create the circumstances necessary for further arms-control work. 相似文献
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设计了四轮全向移动机器人的传感器信息采集硬件电路,并通过分析四轮全向移动机器人的运动学模型,提出了基于TI公司最新研发的TMS320F28069为主控制器的直流电机双闭环速度控制方案.试验结果表明:所提控制方案能够满足四轮全向移动机器人速度控制的要求,且响应速度快、误差小. 相似文献
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Ordered flow shop models have appeared in the literature since the mid‐1970s and proportionate flow shop models have appeared since the early 1980s. We provide a detailed review of these models along with some analysis and potential topics for future research. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 2013 相似文献
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This paper examines whether non-lethal weapons (NLWs) enhance the capability of the US armed forces to conduct irregular warfare (IW) operations. With expectations that the operational environment will only continue to become more complex in the future, NLWs may reduce the level of violence received, as well as dispensed, by US forces while performing tasks in the IW spectrum. We argue that NLWs increase the ability of US forces to address the long tail of warfare and their deployment should be increased in the near term. 相似文献
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