延迟时间模型及其在设备维修中的应用

对延迟时间的基本概念作了简要描述,介绍了设备的停工时间及费用两种模型,最后给出一示例,说明了延迟时间模型的应用.     

仓库机械设备的综合评价模型

建立了综合评价仓库机械性能的指标体系,根据这一指标体系提出模糊综合评价和成本分析的方法,应用这些方法对我军仓库目前使用的几种机械作了评价,找出了费效比最大的机械。     

碳化钨及其混合物的冲击 Hugoniot数据计算

计算了多孔碳化钨（初始密度分别为密实碳化钨密度的９５％、８５％、７５％和６５％）在不完全压实状态和完全压实状态下的Ｐ_１－Ｖ_１曲线和Ｃｓ－Ｕ１曲线以及碳化钨／碳、碳化钨／碳化硅混合物（碳化钨含量分别为３％,５％,１０％）的Ｐ_１－Ｖ_１曲线和Ｃ_ｓ－Ｕ_１曲线。     

有限时间制冷机生态学的优化性能

本文研究非线性传热Ｑｏ∝（△Ｔ）￣ｎ条件下的内可逆卡诺制冷机,给出可逆与不可逆循环的制冷量之间的关系式,由此建立了制冷机生态学的优化目标Ｆ,并求得Ｆ与制冷系数的最优关系,最后讨论制冷机生态学的工作优域,为更有效地利用能量和保护自然资源提供新的依据。     

不可逆闭式燃气轮机循环的最佳功率效率特性

本文研究恒温热源条件下不可逆闭式燃气轮机循环的有限时间热力学性能,导出其最佳功率输出与效率间的关系,它包含内可逆和理想换热条件下的最佳特性关系。     

多传感器式诱导维修系统的设计与实现

针对战场装备抢修中维修作业时间紧、任务重、难度大和专业维修人员少的问题,提出了多传感器式诱导维修系统体系结构,开发了一套基于增强现实技术的诱导维修系统。系统主要由5个模块构成。通过PST跟踪仪和基于无迹卡尔曼滤波的多传感器跟踪算法完成跟踪注册,结合语音和手势识别进行人机交互,通过构建无线通讯网络和实现数据分布式处理拓展了系统的适应性和实用性。以某型装备电磁铁更换为例,对系统功能进行了验证。实验对比说明了与纸制维修手册和普通移动终端相比,该系统能更为高效地指导维修人员完成维修任务。     

The nexus between military expenditures and economic growth in the BRICS and the US: an empirical note

This empirical note re-examines the causal linkages between military expenditures and economic growth for the BRICS countries (Brazil, Russia, India, China, and South Africa) and that for the USA during the period 1988–2012. Results of Granger causality tests show that military expenditures influence economic growth in the USA, economic growth influences military expenditures in both Brazil and India, a feedback between military expenditures and economic growth in Russia, and no causal relation exists between military expenditures and economic growth in China and South Africa. The findings of this study can provide important policy implications for the BRICS countries and also for the USA.     

The effects of local elections on national military spending: A cross-country study

In this paper, we study the domestic political determinants of military spending. Our conceptual framework suggests that power distribution over local and central governments influences the government provision of national public goods, in our context, military expenditure. Drawing on a large cross-country panel, we demonstrate that having local elections will decrease a country’s military expenditure markedly, controlling for other political and economic variables. According to our preferred estimates, a country’s military expenditure is on average 20% lower if its state government officials are locally elected, which is consistent with our theoretical prediction.     

基于时频分析的飞机目标识别

本文利用小波变换对五种飞机目标的雷达回波进行时频分析,得到了回波信号的时频分布图。全面清楚地描述了目标的散射特性。文中通过提取时频分布图的矩特征作为目标特征量,对五种飞机的目标作了识别实验,取得了良好的识别效果     

军人心理素质教育初探

要在正确理解素质和心理素质的基础上 ,立足于军人和军事生活的特点来理解军人心理素质。军人心理素质教育的关键环节 ,是要切实掌握如何进行军人心理素质教育的方法和途径。实践证明 ,教育引导、环境磨炼、自我养成和结合渗透是加强军人心理素质教育的四个关键环节