多体存贮器有效频带分析

本文以排队论为工具建立了紧耦合多处理机系统存贮器的排队模型。通过对存贮体忙期的分析,得出了存贮器有效频带的解析表达式,研究了在保证存贮器有效频带最大的情况下,处理机的访存请求率λ、存贮体的服务率μ和存贮体数m 三者之间的关系。     

The Afghan model in northern Iraq

In Operation ‘Iraqi Freedom’, as the Coalition's heavy forces fought in the South, in the North a handful of special operations forces, working with Kurdish rebels, clashed with the Iraqi army along the Green Line. In operations reminiscent of those used a year earlier to defeat the Taliban in Afghanistan, the lightly armed and heavily outnumbered Coalition forces called in air strikes to defeat Iraq's regular and Republican Guard army divisions. This article tells the story of these operations and discusses some of their implications for future US military policy. The success of the Afghan model in Iraq goes a long way toward demonstrating the efficacy of new air-heavy tactics and shows the strategic value of using light indigenous allies to replace heavy US land forces in both conventional combat and occupation operations.     

Westmoreland was right: learning the wrong lessons from the Vietnam War

Fourth Generation Warfare is a theory of contemporary warfare that posits a number of different ideas that are able to shed light on current conflicts. Whilst much of the debate has been concentrated on the linear development of warfare and also on analysis of the current situation of US forces in Iraq, it has resonance for a number of different conflicts taking place in Africa, if only because the US has become involved in contemporary conflicts in Somalia and the Mahgreb. There are clearly significant issues with the US-centric, flawed linear approach to history, but the actual analysis of modes of warfare has much to offer policymakers in a continent that is under-represented in the literature, and is also in danger of being forgotten in the shadow of analysis of Iraq. This paper moves on from criticising the stepped approach to history and looks at patterns of warfare in contemporary Africa, arguing that there is much in the theory that could be used to explain seemingly illogical tactics or patterns, and thus has much to tell policymakers engaged in conflict analysis.

Rebellions can be made 2 per cent active in a striking force, and 98 per cent passively sympathetic.1 ?1. T.E. Lawrence, ‘Science of Guerrilla Warfare’, 1929, published in Malcolm Brown (ed) T.E. Lawrence in War and Peace: An Anthology of the Military Writings of Lawrence of Arabia (London: Greenhill Books, 2005) p.284.      

Unnecessary or unsung? The utilisation of airpower in Britain's colonial counterinsurgencies

Making extensive use of primary archival documents, this article seeks to explore whether airpower in three of Britain's most significant post-war colonial counterinsurgency campaigns, Malaya, Kenya and South Arabia, was an unnecessary part of British strategy, offering little useful military force due to the futility and strategic damage rendered by offensive bombardment, or whether airpower was indeed an unsung factor that provided operational flexibility through its effectiveness in a supply context, as well as its intelligence role in providing valuable aerial reconnaissance. In all three case studies the role played by the RAF in medical evacuations, in troop drops, in crop spraying during food-denial initiatives, and in providing ‘Voice Aircraft’ for the propaganda campaign, provide insights into an under-explored component of Britain's politico-military efforts in counterinsurgency in the 1950s and 1960s and suggests that the main strategic value of airpower in counterinsurgency, then and now, lies in its non-kinetic functions.     

Winning with warlords in Afghanistan

A fundamental contradiction has been built into America's intervention in Afghanistan since the first days of the war in 2001. On the one hand, US policymakers have viewed the promotion of liberal democracy, economic development, and strong centralized state institutions as essential to achieve victory over the long term. On the other hand, however, the US has relied on local warlords to win its battles against the Taliban from the first days of the intervention. The Obama administration's tortured policy review reflects the intractable dilemmas involved in trying to build a modern democratic state while relying on local warlords as crucial allies in the war against the Taliban.     

The missing dimension: IDF special operations forces and strategy in the Second Lebanon War

In the course of the 2006 Lebanon War the Israel Defense Forces (IDF) employed special operations forces (SOF) for raids against Hizb'allah's command and control structure. This article argues that a faulty conceptualization of the value of special operations and misguided expectations determined by the new IDF concept of operations impacted adversely on the employment of SOF for this kind of operations. Both these elements contributed in turn to substantially degrade SOF performance in the context of the war.     

基于多信号模型的计量策略设计与验证

装备可计量性的理论方法研究对提高装备的计量保障水平具有重要意义。针对国内缺乏装备可计量性模型的现状,提出了可计量性分析设计的多信号模型方法。系统总结了可计量性多信号模型的基本理论,详细介绍了在单超差假设及不考虑组元可靠性、计量时间和费用影响下的超差检查用检定和超差定位用检定操作优选算法以及计量策略制定方法。建立了信号产生系统多信号模型,给出了超差-检定相关性矩阵,分析了信号产生系统的计量检定树,结论与信号产生系统实际检定方法相符,实例证明,此方法合理有效。     

Bedeviled by a Paradox: Nitze,Bundy, and an Incipient Nuclear Norm

ABSTRACT

This article explores how two influential American policy makers—Paul Nitze and McGeorge Bundy—wrestled with the idea of a norm against the use of nuclear weapons. Existing scholarship has overlooked how both Bundy and Nitze came to understand the idea of nuclear non-use, especially related to the credibility of threats to use nuclear weapons. Using documentary evidence from their personal papers, this article illuminates the thinking of Bundy and Nitze, finding that both engaged with the idea of a norm of non-use of nuclear weapons in their strategic writing and thought.     

Clash of counterterrorism-assistance-seeking states and their super power sponsors: Implications on the war against Boko Haram

ABSTRACT

Decade-long security cooperation and counterterrorism engagements in Nigeria have failed to bring down Boko Haram or at least weaken its terrorist structures and transnational spread. I argue that disconnects between counterterrorism-assistance seeking states and their superpower sponsors are implicated in the intractability of Boko Haram's insurgency in Nigeria. Why is the U.S. counterterrorism intervention to individual MNJTF countries (i.e. troop contribution, military funding and intelligence support) ‘lopsided’, ‘fragmented’ and ‘unevenly distributed;’ and how are these implicated in the fight against Boko Haram terrorism? This has impacted negatively on MNJTF countries – lack of cooperation, divisiveness and individualism in coordinating and forging offensives against Boko Haram. These concerns interface several blind spots in the picture of external influences on military’s approach to Boko Haram. I elicit primary data from top military officers. I conclude by predicting the implications and consequences of these counterterrorism complexities, and their potency to defeat or encourage Boko Haram terror.     

嵌入式装备测试系统设计研究

针对现代装备测试性需求,利用ARM微处理器构建了基于CAN总线网络的多路嵌入式数据采集系统,介绍了嵌入式数据采集系统硬件组成、硬件模块实现以及软件设计;检测数据经过CAN总线存入SD卡存储器,并进行后期数据的存取和处理．实验结果表明,该系统能够可靠、准确地对多路信号进行采集,实现对火炮装备的检测．