舰载反潜直升机吊放声纳区域反潜策略建模

为提高舰载反潜直升机吊放声纳区域反潜搜索作战效能,对舰载反潜直升机吊放声纳区域反潜搜索策略问题进行了建模。根据潜艇目标位置信息的不确定性,研究了潜艇目标位置信息的概率分布函数,采用Markov状态转移概率矩阵描述了潜艇目标位置信息变化的方法。其次,给出了基于贝叶斯理论的潜艇目标信息概率分布函数更新公式。再次,推导了舰载反潜直升机吊放声纳区域反潜最优策略,给出了舰载直升机吊放声纳区域反潜搜索算法。最后给出了典型案例,验证了反潜搜索策略的有效性。研究成果可为舰载反潜直升机吊放声纳区域反潜提供决策依据。     

一例多元案例教学法在程序设计课程教学中的应用

通过探讨一例多元案例教学法的教学理念、设计策略、实施方法和过程,解决程序设计课程教学不能点、线、面融合,缺少培养学员设计综合应用程序能力的方法和手段,学员学习目标不明确、缺乏学习兴趣等问题,以有效提高教学效果和质量.     

大型商业性建筑安全疏散策略研究

近年来,大型商业性建筑火灾事故时有发生,造成了重大损失,火灾发生时如何提高人员的疏散效率是降低伤亡率的要素.通过对大型商业性建筑火灾危险性和疏散中存在的问题进行分析,结合实际从设置消防救援窗,严格划分防火分区,合理设置疏散楼梯和安全出口,制定安全疏散预案,加强消防安全培训,充分利用声光报警等方面论述了优化大型商业性建筑人员疏散效率的策略.     

SHINING A SPOTLIGHT ON THE SPACE RACE IN ASIA

Asia's Space Race: National Motivations, Regional Rivalries, and International Risks, by James Clay Moltz. Columbia University Press, 2012. 290 pages, $35.     

Space,China's Tactical Frontier

In recent years, China has made stunning progress in its satellite reconnaissance capabilities. Starting from almost no capacity for live surveillance ten years ago, today the PLA has gained the capability to support real-time tactical naval operations from space. China's suite of electro-optical, synthetic aperture radar, and electronic intelligence satellites would be key to its anti-access/area denial capabilities, through which the PLA could deny the United States military the capability to operate with impunity close to its shores. Furthermore, these achievements suggest a shift towards more military-dedicated space assets and form the contours of a crucial support system for expanded PLA operations.     

Russian Reactions to Reagan's ‘Maritime Strategy’

The US Navy's audacious Maritime Strategy of the 1980s is often credited with acting as a key catalyst to the demise of the USSR. In assessing the role of strategic missile submarine “bastions” in the country's overall military strategy, the authors are skeptical of the above thesis, explaining that Moscow actually viewed deployments of Tomahawk land-attack cruise missiles on to US submarines (versus direct threats against the Soviet Navy itself) as the most alarming threat. The authors concede that the arms race played a role in the collapse of the USSR, but deny a direct connection with Soviet naval development citing the relatively minor naval proportion of overall defense spending. For the difficulties facing the fleet at the end of the Cold War, they instead blame deep systemic problems internal to the Soviet Navy.     

‘Clean’ bombs: Nuclear technology and nuclear strategy in the 1950s

The idea of ‘clean’ bombs, nuclear weapons with a reduced amount of radioactive fallout resulting from their fission part, has met much ridicule since its public inauguration in 1956. Many scholars have regarded the bombs as a propaganda tool, stopping short of analyzing their role in the transformative phase of US nuclear strategy in the 1950s. This paper reexamines the clean bomb episode through 1958, shedding light upon the dynamic relationship between the development of nuclear weapons technology and the evolution of nuclear strategy from massive retaliation to flexible response. It also discusses the mechanism and momentum of nuclear weapons technology innovation until the US suspended nuclear testing in late 1958.     

The vanguard's dilemma: understanding and exploiting insurgent strategies

The purpose of this paper is to provide a better conceptualization of insurgent strategies. Specifically, I shall examine Che Guevara's ‘Foco’ theory of insurgency, as it is one of the most theoretically popular and most pervasive strategies of insurgency currently practiced throughout the world. After briefly examining the origins, objectives, and theoretical strengths of the Foco theory (also known as the Vanguard Theory), I will argue that Guevara's theory suffers from an internal tension that I term the ‘Vanguard's Dilemma’. The significance of this dilemma creates a tension within the Vanguard Theory that can be fatal for insurgents if properly exploited by counterinsurgent operations. This paper will examine in detail this dilemma and show how it can be exploited. Given that several insurgent groups within Iraq and Afghanistan currently adhere to the Vanguard Theory of insurgency, a proper understanding of this insurgent strategy is an essential first step in the long road towards confronting and winning asymmetrical conflicts.     

Major Stepan Stebelski of the Ukrainian Insurgent Army: examples of insurgency leadership and tactics

This is a biographical analysis of Stepan Stebelski (‘Khrin’) and his time in the Ukrainian Insurgent Army. His military command is an example of classic insurgency tactics and strategies. He was trained in underground tactics before the Second World War, used his image very effectively during his time in the UPA, and used his knowledge of the terrain to become an exceptional enemy against Soviet and Polish authorities.