U.S.–RUSSIAN NUCLEAR COOPERATION AND THE CTBT

Post-Cold War “lab-to-lab” collaborations on unclassified scientific issues between U.S. and Russian nuclear weapons laboratories set the stage for bilateral cooperation in materials control and other nuclear areas. They also became the major element in a cooperative process initiated by a Presidential Decision Directive to ensure Russia's compliance with the Comprehensive Nuclear-Test-Ban Treaty. These collaborations have always been highly favored by leaders of the Russian nuclear weapons complex—the same leaders who oversee Russia's participation in various government-to-government programs. This article reviews these collaborations and examines the possibility that U.S. rebuffs of Russian proposals and the U.S. failure to keep promises of expanded collaboration could contribute to Russia's reluctance in major programs and even lead to a return to nuclear testing by Russia. The author argues that a renewed U.S. commitment to the process should be an immediate goal of the Obama administration and is an essential step in re-engaging Russia to solve the nuclear problems remaining from the Cold War. Steps for doing so are recommended.     

An Imperfect Jewel: Military Theory and the Military Profession

This article explores a perennial theme in the literature of strategic studies: the relationship between military theory and the military profession. It begins with a conceptual analysis of this relationship. It then investigates what military theorists themselves have had to say about the utility of their craft. It concludes by assessing the actual influence of military theory on selected individuals and institutions. The individuals are George S. Patton, Jr., and Ulysses S. Grant. The institutions are the United States Army and the United States Air Force in the late twentieth century. The fundamental finding is suggested in the title: military theory can indeed be quite useful in the maturation of military commanders and in the development of martial institutions, but it is not always necessary and by no means perfect. It should thus be studied assiduously but used with caution.     

Gorshkov's Gambit

This article is a portrait of Admiral Sergei Gorshkov, commander of the Soviet Navy for almost three decades, from 1956–85. The author, a retired US Navy admiral with a Harvard PhD in Russian studies who served as both defense and naval attaché in Moscow, draws on numerous face-to-face interactions with Gorshkov. He also explores Gorshkov's memoirs that were published recently in Russia but have not appeared in an English translation. The paper is not only a first-hand account of an important historical figure, but also a window into the world of military-to-military diplomacy and intelligence during the Cold War.     

虚拟维修仿真数据编辑系统研究

为有效解决虚拟维修系统中仿真数据编辑技术不通用的问题,在深入研究虚拟维修数据模型、交互任务分析、仿真数据管理等关键技术的基础上,设计开发了具有工程应用价值的虚拟维修仿真数据编辑系统.在分析系统设计需求的基础上,设计了系统总体结构,基于S1000D设计了虚拟维修数据模型,基于UML分析了维修样机编辑和维修规程编辑过程中的交互任务,基于XML实现了仿真数据的编辑、存储与发布.该系统应用于某型复杂装备虚拟维修,验证了系统的各项功能和应用效果.     

IMGS方法与TOR方法之间的比较性定理

给出了一种IMGS方法,在理论上证明了当系数矩阵为不可约的M－矩阵时IMGS方法收敛,且其收敛速度快于基本的TOR迭代法。最后用数值例子验证了所得到的主要结论。     

基于POPS和PSR的美军里程碑节点审查方法

里程碑节点审查是美军装备采办过程中的核心控制手段。选取美军在该领域应用的最具代表性的项目成功可能性评审方法(Probability of Program Success,POPS)和项目支持评审方法(Program Support Review,PSR),围绕任务目标归纳出方法的主要思路,从程序步骤、评审内容框架等方面深入探究方法的特点,并从应用条件、使用范围、优点和局限性等方面进行对比分析,最后提出启示建议,为优化我军节点审查方法、提升装备采购过程管控能力提供借鉴和参考。     

美军武装直升机电子战设备的现状与发展趋势

介绍了武装直升机在现代战场上面临的种种威胁,重点介绍了美军武装直升机目前装备的电子战设备和尚处于研制中的新一代综合性电子战设备,分析了美军武装直升机电子战设备的发展趋势。     

Fe~(3+)与S~(2-)反应的研究

Fe3+ 与S2 - 反应是一个典型的竞争反应 ,反应的生成物与反应条件有着非常密切的关系。通过理论研究和实验验证 ,确认在酸性介质中反应的生成物为Fe3+ 和单质S↓ ;在碱性介质中反应的生成物为黑色Fe2 S3↓。     

二十世纪美国反恐情报应用模式初探

美国作为较早受到恐怖主义威胁的西方发达国家,自20世纪70年代逐渐发展起了一套完善的执法体系,并积累了成熟的执法经验,特别是信息化时代背景下,美国执法部门的反恐斗争渗透着强烈而鲜明的信息情报色彩,是“情报导侦”理念和模式的现实体现,为我国执法与行动部门提供了一定的经验。其中的“威胁评估”综合情报分析模式是美国反恐情报工作的典型代表,对于预防恐怖主义犯罪起着特殊的作用。     

On the exponentially weighted moving variance

MacGregor and Harris (J Quality Technol 25 (1993) 106–118) proposed the exponentially weighted mean squared deviation (EWMS) and the exponentially weighted moving variance (EWMV) charts as ways of monitoring process variability. These two charts are particularly useful for individual observations where no estimate of variability is available from replicates. However, the control charts derived by using the approximate distributions of the EWMS and EWMV statistics are difficult to interpret in terms of the average run length (ARL). Furthermore, both control charting schemes are biased procedures. In this article, we propose two new control charts by applying a normal approximation to the distributions of the logarithms of the weighted sum of chi squared random variables, which are respectively functions of the EWMS and EWMV statistics. These new control charts are easy to interpret in terms of the ARL. On the basis of the simulation studies, we demonstrate that the proposed charts are superior to the EWMS and EWMV charts and they both are nearly unbiased for the commonly used smoothing constants. We also compare the performance of the proposed charts with that of the change point (CP) CUSUM chart of Acosta‐Mejia (1995). The design of the proposed control charts is discussed. An example is also given to illustrate the applicability of the proposed control charts. © 2009 Wiley Periodicals, Inc. Naval Research Logistics, 2009