依据部分属性值的空中目标威胁快速排序方法

针对空中目标威胁排序问题,提出了一种依据部分属性值即可对目标威胁进行快速排序的方法.首先选取具有代表性的样本数据作为案例库;然后确定条件属性和决策属性,在利用K-均值聚类算法对决策属性进行离散化后,提出了一种针对连续条件属性值的全局离散化方法,并对离散化后的案例库进行属性约简并得出决策规则;最后将待排序目标各属性值进行...     

证据理论从两维到多维同步融合

D-S证据理论的组合规则是反映两个证据联合作用的法则。为了得到多个证据源的最终目标属性判决,提出了一种推广到多维同步合成计算的D-S组合规则。详细分析了多维同步融合的情况,提出利用多维同步融合的确定性因子来代替D-S组合规则中的不确定性因子进行融合,避免计算大量无实际意义的联合概率乘积项,简化了计算过程,拓展了D-S证据理论的实际应用。并通过仿真验证了推广到多维同步融合的D-S组合规则的正确性和有效性。     

基于Dempster组合规则的电子目标识别算法研究

在军事目标识别中,必须综合考虑目标的电磁辐射信息和红外图像信息,并采用有效的识别算法,才能准确识别电子目标。提出了基于Dempster组合规则的电子目标综合识别方法,完成了基于Dempster组合规则的电子目标自动识别综合处理算法研究,并进行了仿真实验,试验结果表明,该算法是可行的。     

论兵团人法律信仰的培育

尊重法律、信仰法律是兵团实现法治的精神意蕴,也是兵团能否真正实现法治化的支撑点。本文以兵团“四五”普法为契机,概括了兵团人法律信仰的现状及存在的问题,分析其成因,并提出培育兵团人法律信仰的主要途径。     

Technical note: Worst‐case performance of power‐of‐two policies for serial inventory systems with incremental quantity discounts

This study presents power‐of‐two policies for a serial inventory system with constant demand rate and incremental quantity discounts at the most upstream stage. It is shown that an optimal solution is nested and follows a zero‐inventory ordering policy. To prove the effectiveness of power‐of‐two policies, a lower bound on the optimal cost is obtained. A policy that has a cost within 6% of the lower bound is developed for a fixed base planning period. For a variable base planning period, a 98% effective policy is provided. An extension is included for a system with price dependent holding costs. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

菜籽油基防锈润滑添加剂的制备及性能研究

菜籽油基添加剂是一种可生物降解的环保的润滑剂。水基润滑剂具有导热性好,成本低廉等优点。利用菜籽油制备了一种具有良好润滑性、极压性、防锈性及表面活性的多效水溶性润滑添加剂。此添加剂生物降解性好,制备过程中无废物及污染物产生,具有很好的环保效果。     

The Production and Deposition of the Guisborough Helmet

In September 1878 the British Museum received a donation of a folded metal plate which had been embossed and gilded. Restoration of the object revealed that the folded plate was in fact the outer casing of a Roman copper alloy cavalry sports type helmet which dates to the late second or third century AD. The story of what became known as the Guisborough helmet began 14 years earlier in what was then the North Riding of Yorkshire when workers employed by the Cleveland Railway Company discovered a ‘very curious plate of metal’ during road construction. It appears that the helmet was deliberately prepared for deposition and buried at a depth of c30 cm close to a stream. Examination by the authors suggests that this was a high value item that had been repaired many times. Experimental evidence suggests that the decoration alone required approximately 16 h to fashion.     

“It would be impossible to estimate the value of these works...” Mass Production at Springfield Armory during the American Civil War

The U.S. Armory in Springfield, Massachusetts, rarely appears in Civil War histories except perhaps as an unexplained statistical wonder. By late 1863, the Armory was the largest single supplier of rifles to Union forces. Springfield Armory workers out-produced over thirty American contractors, making more Army rifles at less cost while providing contractors with gauges, inspectors, and models, even though there were significant wartime private-sector mechanical innovations. This article identifies and explains the factors in the Armory’s success, provides context on contemporary American arms production and rifle models, and argues that the Armory’s methods and performance were among the first if not the first example of mass production in American small arms manufacture. The relative brevity of the Civil War episode, and the fact that it was not repeated in any comparable way at the Armory until World War II, has obscured its significance in American manufacturing history.     

基于矩估计的高原航空备件消耗规律研究

针对高原航空备件消耗规律难把握的问题,提出了一种解决低消耗器材消耗预测的方法,利用矩估计把握器材的消耗规律和Monte Carlo仿真器材消耗的数据,找出储备量与满足率之间的关系,预测年平均消耗量。     

持续推进强大海军建设必须要有良好的法治环境作基础

海军建设任务重、周期长、投入大的特点决定了持续推进强大海军建设,必须要有良好的法治环境作基础。文章坚持运用辩证唯物主义的立场、观点和方法,通过对近代中日两国海军建设在经费投入、规划审定、法规制定三个方面具体做法的比较,深入分析了近代中日两国海军兴亡背后的法制因素,指出当前持续推进强大海军建设必须深入学习贯彻党的十八届四中全会精神,按照依法治军方略,强力推进依法治军进程。