ESD EMP能量耦合线性化建模

针对利用非线性建模方法研究静电放电电磁脉冲(Electro Static Discharge Electro Magnetic Pulse,ESD EMP)能量耦合存在计算复杂、模型收敛性能较差的问题,基于ESD辐照实验提出了一种非线性系统线性化建模方法。该方法是将系统响应与激励间的非线性关系转化为线性关系后,利用带遗忘因子的递推最小二乘法进行线性回归来建立模型。首先利用3.5 k V ESD实验数据进行建模,然后应用3.5 kV、4.5 kV ESD实验数据进行模型验证,2种情况下的拟合度均达到94.303 3%。结果表明:线性化建模能有效降低建模难度,且模型精度较高,为ESD能量耦合研究提供了一种简便有效的建模方法。     

带空气室脉冲水射流系统通用分析法

针对所提出的用空气室引发水力共振以增强脉冲水射流的设想,应用水力瞬变特征线解法,建立系统的数学模型,差分网格只取脉冲源、空气室和喷嘴3个边界点,采用变时步法解算。这种方法具有灵活性大、受限制小、便于使用的突出优点。     

谈部队基层干部队伍建设

部队建设的关键在基层,基层建设的关键在中队干部,他们素质的高低直接影响到基层建设的好坏。根据当前消防中队干部队伍的现状,加强基层干部队伍建设的着力点应在于：夯实中队干部思想基础,提高中队干部履职能力,完善中队干部管理措施。     

雷达利用极化信息区分真假目标浅析

首先介绍了电大目标回波信号极化特征和电子假目标信号极化特征,接着探讨了理论上雷达根据极化信息区分电子假目标信号和真实目标回波信号的方法,分析了实际应用中可能存在的困难,说明了这种方法在目前和今后雷达目标识别技术发展中是有实际意义的。最后说明了无论是现在,还是今后,极化信息对于雷达目标识别来说都是一个极其重要的参数。     

How Probable is Cyber War? Bringing IR Theory Back In to the Cyber Conflict Debate

Many well-established explanations for war suggest that cyber weapons have a greater chance of being used offensively than other kinds of military technologies. This response article introduces a research agenda for the study of cyber war, and offers an example – principal-agent problems in cyber operations – to demonstrate how rigorous theoretical and empirical work may proceed.     

One more push: Forcing the Dardanelles in March 1915

The historiography of the Gallipoli campaign suggests that the Turks were critically short of ammunition for the Dardanelles coastal defences in March 1915. This theme, established by Winston Churchill, became the basis for a widespread belief that the Royal Navy, after its failure to carry the Dardanelles on 18 March 1915, simply needed one more determined naval push to breakthrough the narrows. The presumed consequence was that the Ottoman Empire, with Constantinople under the guns of the Royal Navy, would have withdrawn from the war. Using modern Turkish sources, the author examines the available quantities, placement, and expenditure of ammunition, and challenges the premise that the Turks were desperately short of heavy shells. The author concludes that the Turks had sufficient remaining ammunition to fiercely contest control of the straits.