小样本采样数据的预处理

一般情况下数据处理大多采用数理统计方法,该方法对于数据较少情况下处理和判别粗大误差不适用。提出了运用线性均方估计法和熵值判别法来处理和判别粗大误差,线性均方估计消除粗大误差是一种采用软化的方法处理粗大误差;熵值判别法是根据熵的上界对应最大的不确定度,利用所得数据的熵信息量判别数据是否含有粗大误差。这两种方法经过多个实例计算,结果表明,它们在处理小样本采样数据时更有效。     

浅谈我国中小企业风险投资发展

随着国民经济的战略性调整,我国的中小企业将越来越多,越来越活,这给中小企业的发展带来了机遇,也带来了竞争。我国经贸委对中小企业的现状进行了调查,发现中小企业目前面临的主要困难是融资困难,资金短缺经济成为制约中小企业方发展的主要因素。如何改变这一“瓶颈”是我国当前需要解决的一道难题。本论文从风险投资角度进行研究,结合我国目前中小企业的发展状况为研究依据,分析了我国目前中小企业发展风险投资的问题和不足,提出了一系列的对策建议。     

双37mm高炮系统防御巡航导弹的仿真研究

采用数字仿真方法对使用双３７ｍｍ小高炮系统防御巡航导弹的效能进行了研究。并对战场环境、武器系统的技术参数与目标的毁伤概率间的关系作了定量的分析     

基于ExtendSim小件空投地面准备的仿真研究

小件空投是空降兵空投保障的重要组成部分,现已基本形成了包装——运输——装机三阶段的小件空投地面准备保障模式。简要介绍了空投小件包装、运输和装机环节,利用Extend Sim仿真软件,对影响小件空投地面准备的主要因素进行仿真。通过对仿真结果的分析,有利于在空投小件装机数量不间断的情况下,提高小件包装人员和运输车辆的利用率,辅助空投技术人员对影响空投实施的主要因素进行科学决策和统筹管理。     

基于RBF神经网络的背景估计及红外小目标检测

利用RBF神经网络的函数逼近特性,得到了一种红外图像背景估计算法,进而提出了一种检测红外小目标的方法。利用有目标和没有目标的真实红外图像对此算法进行检测,背景估计效果理想,小目标检测效果理想,证明该算法是可行有效的。     

中小型石油库(站)CAD系统中快速设计的实现

如何提高中小型石油库(站)设计的效率是工程设计人员非常关注的一个问题,也是中小型石油库(站)工程设计CAD软件开发的基本目标之一,但目前在国内研究较少。分析归纳了中小型石油库(站)实际设计中的典型设计方法,提出了以外部数据库和图形数据库为基础,采用基于工程参数驱动图块的设计技术、基于单元图的设计技术、基于工程定型图的设计技术,并结合根据需要开发的修改编辑工具,为设计人员提供了一整套设计工具,帮助其实现快速设计。试用效果证明,该思路切实可行,并已在中小型石油库(站)CAD系统的开发中得以实现。     

小型旋翼无人机在未来城市军事行动应用中潜力评估

随着全球范围的城市化进程不断推进,未来军事斗争向城市环境中发展是必然趋势。在城市作战需求分析的基础上,剖析了传统装备的"城市病",阐述了小型旋翼无人机在城市军事行动中的应用潜能。研究表明,针对现有装备在城市作战中显示出的若干短板,发展基于小型旋翼无人机打造侦察平台与精确打击平台将是一个较好的解决方案。而运用军民融合的发展模式挖掘小型旋翼无人机军用潜力,在提升军队作战能力,降低成本均具有积极意义。     

舰炮对海上集群小目标射击的毁伤概率

海上集群小目标是水面舰艇面临的主要威胁之一。以单管大口径舰炮对海上集群小目标射击作为研究对象,对集群目标进行了等效处理,分析了弹种、引信和装药的选择以及效力射中的表尺分配问题,提出多表尺效力射方法,利用该方法对海上集群小目标射击的毁伤概率进行了分析。结果表明,采用该方法并使用空炸榴弹或杀伤爆破弹,可有效破坏敌运输工具,杀伤其有生力量。     

Landmines and Conservation in Southern Africa: Peace Parks in the Aftermath of Armed Conflict

Peace parks are a modern means of conflict resolution through nature conservation. The Great Limpopo Peace Park (GLPP), which spans South Africa, Zimbabwe and Mozambique, was established to bring new hope to an area that is infamous for racial and political divisions, civil war and widespread poverty. This paper discusses the impact of international laws governing landmines, the current priority choices of the countries involved, and the situation in the two mine-affected countries: Mozambique and Zimbabwe. Minefields and politics are interrelated, and have an impact at local, national and international level. Using the GLPP as a case study, the article argues that although they have been presented as excellent examples of integrated biodiversity conservation and socio-economic development in developing countries, peace parks will not fulfil their main objective of promoting an image of peace in the aftermath of conflict without addressing landmine contamination.     

Callwell versus Graziani: how the British Army applied ‘small wars’ techniques in major operations in Africa and the Middle East, 1940–41

The period from December 1940 through to the spring of 1941 saw the British Army win a series of rapid and decisive victories over Italian and Vichy French forces in North and East Africa and the Middle East. A key feature of these operations was the extensive British use of fast-moving all-arms mobile formations utilising superior speed and mobility to out-manoeuvre considerably larger Italian formations. A number of reasons have been given for the British Army adopting this mode of warfare, but the paper contends that the best explanation is that they were an organic evolution from methods used by the British Army in ‘small wars’ throughout the early twentieth century, use of mobile ‘frontier columns’ at the operational and tactical level of war being described and recommended by Callwell himself and visible with the Army in practice in operations in India and the Middle East in particular. The inter-war period saw the combination of this model of warfare with post-First World War military technology, notably tanks, close air support and coordination by wireless. Colonial operations in this period also saw some utilisation of what would later be identified as ‘Special Forces’ – also used extensively in the Desert War – the most obvious example being Captain Orde Wingate's Special Night Squads in Palestine in 1938.