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1.
国外爆炸物检测技术综述(一)——痕量爆炸物检测技术   总被引:1,自引:0,他引:1  
本文首先简要介绍了我国所面临的爆炸恐怖成胁,对现有的爆炸物检测技术进行了系统分类,详细论述了国外的痕量爆炸物检测技术,并对个别技术的优缺点进行了比较分析。对了解国外爆炸物检测技术有一定的参考价值。  相似文献   

2.
拉曼光谱技术在爆炸物检测中的应用   总被引:1,自引:0,他引:1  
拉曼光谱技术与传统爆炸物检测方法相比,具有抗干扰能力强、制样简单、可测光谱范围宽、易于探测微量样品等优势,是近年来检测、鉴别痕迹爆炸物的重要研究方向。  相似文献   

3.
浅谈汽车炸弹的特点和防范手段   总被引:1,自引:0,他引:1  
简述了汽车炸弹的特点及其实施战术,提出防范汽车炸弹的几种方法。一是研究爆炸物探测原理,配备先进的爆炸物探测装备;二是部署拦截装置;三是通过各种工程措施加强对重要目标的防护。  相似文献   

4.
从技术装备的科研立项、特种分队技术装备的改善,到人装结合发挥技术装备的最大潜能几个方面,就如何改善武警部队的技术装备作了论述,探讨了怎样发挥技术装备在武警部队执勤中的巨大作用。  相似文献   

5.
提出了一种新的基于遗传算法和支持向量机的隐藏图像检测方法。用遗传算法进行图像特征选择,采用支持向量机作为分类器,将支持向量机的分类效果作为适应度函数值返回,指导遗传算法搜索最优的特征,移除图像的不相关特征和冗余特征,提高了学习效率。实验结果表明,与仅采用支持向量机分类但未进行特征选择的隐藏检测方法相比,本方法能有效地提升分类器性能。  相似文献   

6.
提出基于变化域的信息隐藏检测算法和基于彩色静止数字图像的信息隐藏提取算法,将小波变换的放大信息与显示隐藏信息及其相反过程的功效挖掘出来,基于信息隐藏对载体特性影响的模型,建立通用的隐藏信息提取的数学模型和面向"信息隐藏对载体特性影响"集合的正变换函数和逆变换函数,对信息进行标识、分析、提取和还原,使之能破除还原隐藏信息,达到较好的信息识别与分析效果,从而实现快速提取隐藏数据电子证据.  相似文献   

7.
提出了一种基于LSSVM的针对JPEG图像的信息隐藏盲检测算法。该算法在提取JPEG图像的12维特征向量的基础上,通过LSSVM分类器对待测图像进行分类,以达到检测载密图像的目的。实验结果表明,该算法构建的LSSVM分类器对载密图像进行盲检测时,正确检测率较高,能够实现针对各类JPEG图像信息隐藏算法的有效检测。  相似文献   

8.
高技术装备广泛应用于战场,成为现代战争的一个显著特点。正确认识高技术装备,对于军队建设与发展、牢固树立打赢未来高技术条件下局部战争的信心,具有极其重要的意义。  相似文献   

9.
闻舞 《环球军事》2008,(5):50-51
美国M82A1型12.7毫米大口径狙击步枪是当今世界上最出名的军用反器材步枪,它由美国著名的巴雷特公司生产,是美国陆军狙击作战的重要武器。除了狙击作战外,美军还将它作为爆炸物清除器材使用。  相似文献   

10.
在当今Internet和多媒体等技术迅猛发展的基础上,信息隐藏技术已成为数字图像处理领域中最具挑战性、最为活跃的研究课题之一。本文阐述了数字图像的信息隐藏技术,主要分析了信息隐藏技术的含义、方法、应用领域及未来发展趋势,并探讨了信息隐藏技术在军事方面的一些应用。  相似文献   

11.
This article introduces integro-differential equations as a new technique to study terrorism dynamics. An integro-differential equation is a mathematical expression that contains derivatives of the required function and its integral transforms. The technique is applied to two different dynamic models in terrorism: terrorism and tourism, and terrorist innovations. In the first model the number of tourists that appears in an integral term and also in a derivative term is impacted by the number of terrorists. In the second model the integro-differential equation for terrorist innovations relates them to terrorist attacks. The article shows how to solve, analyze, interpret, and deal with integro-differential equations. Integro-differential equations shed light on aspects of the models ignored when other techniques are used. This is particularly important for the evaluation of current counterterrorist policies, as well as to the formulation of new ones.  相似文献   

12.
军事工程渗漏检测技术及设备研究   总被引:1,自引:0,他引:1  
研究军事工程渗漏检测技术及设备,对保证部队官兵的战备训练和生活、武器装备和军需物资的安全存储、军事功能的发挥以及军事任务的完成,具有十分重要的军事、经济意义。比较分析了军事工程渗漏检测技术与方法,确定电磁波技术法为军事工程渗漏检测设备的基本检测原理。分别从检测与传输、智能处理与分析、机械设计与合成、工程实验与验证4个主要分系统对军事工程渗漏检测设备的研制进行了阐述。应用军事工程渗漏检测设备进行了工程实践,解决了已建工程渗漏检测、新建工程防水、防渗漏工程质量验收的技术难题。  相似文献   

13.
We investigate whether differences in terrorism risk are mirrored on terrorism risk perception across European countries for the period 2003–2007. We find that the average propensity for terrorism risk concern is affected by actual risk levels. Country and individual heterogeneity contribute substantially to the variation of observed risk perception. Singles and individuals with white collar jobs are less likely to mention terrorism as one of the most pressing issues their country faces, while political positioning towards the right makes it more likely to be concerned about terrorism. As far as competing risks are concerned, we find that the likelihood terrorism is mentioned, decreases with spending on pensions as a percentage of GDP being higher. Finally, based on the Bayesian framework, we also examined the formation of terrorism risk perceptions, and decompose the observed country-level time series of terrorism activity into a long- and a short-run component. We concluded that the observed risk perception variation is only explained by the long-term trend of terrorism activity countries face.  相似文献   

14.
Abstract

In spite of government counter-terrorism expenditure and efforts, the incidence of terrorism in Nigeria appears to be rising. This paper examines the growth and fiscal consequences of terrorism in Nigeria by estimating the terrorism–macroeconomy relation using different measures of terror incidence. The results show that terrorism has an economically and statistically significant negative impact on growth; although this impact is considerably small and short-lived, manifesting only after a lag of about three years. Specifically, the cost of terrorism to Nigeria, in terms of lost GDP per annum, is estimated at 0.82%. Moreover, there is evidence that terrorism leads to the reallocation of economic activity away from private investment spending to government spending; that is, terrorism crowds out investment at a higher rate than its potential to crowd in government spending. Lastly, terrorism alters the composition of government expenditure – with the defence component of government expenditure rising vis-a-vis other expenditure items. The results are robust to allowing for dynamic interactions between terrorism and macroeconomic aggregates.  相似文献   

15.
境外反恐行动在国际上已有大量先例,对于一个境外目标面临恐怖威胁或遭受恐怖袭击的国家,是不容回避的现实问题。通过对境外反恐行动产生的根源、各国境外反恐的对策、采取的方式及其制约因素的综合分析,能够得出有益的启示。反恐怖斗争的严峻现实和发展趋势,要求我们探索境外反恐对策,切实保护国家利益和人民生命财产安全,同时为国际反恐斗争作出应有的贡献。  相似文献   

16.
基于观测器的某火控系统故障诊断方法   总被引:1,自引:0,他引:1  
以某自行高炮火控系统为对象,研究了基于状态观测器的故障诊断方法,并作了仿真试验.通过状态观测器提取相对余差来检测和识别故障.试验结果表明,对于火控系统中可以建立数学模型的分系统或单体,基于观测器的故障诊断方法具有较好的诊断效果.该方法已成功应用于某高炮火控系统的综合检测与诊断设备中.  相似文献   

17.
This article first looks at the relationship between international terrorism and terrorism in Africa. Since sub-state terrorism is already endemic to Africa, the future threat potential in the continent lies in a complex mixture of sub-national and international terrorism. Africa may come to play a central role in international terrorism. The motivation, means and targets all exist and these opportunities will not go unheeded for much longer. Africa presents both a facilitating environment and a target-rich environment for terrorists that seek to attack the United States, and indeed the global system. The article concludes with some remarks on counter-strategies.  相似文献   

18.
在以往的装备设计中多是按照实际需求,往往忽略了测试性验证,为装备的使用埋下隐患.以测试性验证为基础,设计了一套故障注入系统,并将其应用于某型号装备的自动驾驶仪设计阶段.实验表明,该系统能够快速有效地对装备实施故障注入并给出量化结果.  相似文献   

19.
Africa is severely affected by sub-state terrorism—a phenomenon that is deeply rooted in the crisis facing a number of African states. While the importance of root causes in so-called sub-state terrorism is generally accepted, this issue is hotly contested internationally in debates on terrorism. In fact, both sub-state and transnational terrorism have essentially local causes and linkages, and therefore much of what is categorised as terrorism should be treated more appropriately as insurgencies. Recent events in Somalia are of particular concern, as Western responses to the war on terror may further complicate the domestic situation, with self-fulfilling results. Great care should be exercised by African states in adopting either the language of or the prescribed solutions for transnational terrorism as part of the ‘global war on terror’.  相似文献   

20.
Pakistan with highest number of terrorism related deaths of any country over the past decade, the number exceeding the total terrorism related deaths for both the European and North American continents, provides an ideal laboratory to study impact of terrorism on the macroeconomy. Quasi-Structural VAR, Vector Error Correction Model, Impulse Response Functions and Granger-Causality tests on a sample that covers over 4500 terrorist incidents and consequent 10, 200 deaths [from 1973 to 2010] are employed to study the relationship between terrorism and the macroeconomy. One of the major advantages of the current methodology is that it not only enables one to circumvent the heterogeneity biases inherent in cross-country studies but it also allows distinguishing between short and long-run effects. It is documented that cumulatively terrorism has cost Pakistan around 33.02% of its real national income i.e. terrorism costs Pakistan around 1% of real GDP per capita growth every year.  相似文献   

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