浅谈现代军事物流及其发展趋势

随着我国社会主义市场经济的蓬勃发展和世界新军事革命的兴起,我国军事物流日益引起人们的重视。同时,也面临着历史性的机遇和挑战。本文结合我国军事物流建设现状,就现代军事物流的科学内涵、地位作用、理想形态及发展趋势进行了论述,旨在为新时期军事物流的建设与发展提供理论依据。     

二维隐马氏模型的一种简化算法及其参数估计

针对现有的二维隐马氏模型算法给出了一种简化算法及参数估计方法。该算法与现有的算法相比非常简单。基于此方法给出了相应的识别方法和参数估计,并且该估计与极大似然估计是等同的。     

小波网络的雷达目标识别方法

研究了小波网络的构造问题,提出了一种根据小波的局部时频特性,删除不包含任何目标识别样本数据的小波,初步确定网络隐层节点数的方法;采用提出的算法构造小波网络,可以减小网络的结构,加快网络的收敛速度.将构造好的小波网络作为雷达目标识别的分类器,获得了较好的识别效果.     

基于小波网络的雷达目标识别方法

研究了小波网络的构造问题,提出了一种根据小波的局部时频特性,删除不包含任何目标识别样本数据的小波,初步确定网络隐层节点数的方法;采用本算法构造小波网络,可以减小网络的结构,加快网络的收敛速度.将构造好的小波网络作为雷达目标识别的分类器,获得了较好的识别效果.     

基于模糊模式识别的战场目标识别

分析战场目标的结构、材料、征候、特征及辐射原理等存在的差异,运用模糊模式识别方法,建立了战场目标识别的数学模型,给出了目标识别的详细步骤和方法:选取目标特征量、构造标准模糊集合、构造待识别模糊集合、应用择近原则进行目标识别,并通过算例,得到一些有价值的结论。模型和方法可供C3I系统快速准确的识别战场目标。     

在强抓军事斗争准备中提高打赢本领

提高各级党委领导军事斗争准备、带领部队完成信息化条件下作战任务的本领 ,必须把思想准备作为首要任务 ,提高官兵“真打实备”的思想认识 ;抓实人才培养 ,努力锻造具备打赢本领的人才队伍 ;坚持率先垂范 ,谋打赢、抓关键 ,着力解决现实问题和重点问题。     

Environmental regulation in project‐based industries

We study the environmental regulation of industrial activities that are organized as projects. Applications arise in construction, ship and aircraft building, and film making, among other industries. Relative to manufacturing, environmental regulation is different in project‐based industries, due to the uniqueness and geographical diversity of projects, and a lack of product takeback programs. Because the amount of waste and pollution generated by project companies can be large, regulators need environmental policies to ensure reduction of waste and pollution. We consider a regulator who attempts to maximize social welfare. We model this problem as a bilevel nonlinear program. The upper level regulator specifies waste reduction targets, which the lower level project companies meet using waste stream reduction and remediation of pollution, while attempting to control their project costs. We find that high waste diversion targets lead to outcomes with little pollution, but excessive project costs and only modest waste stream reduction. Projects that have lower task precedence density, or that have pollutants with different environmental impacts, show larger increases in project cost and time resulting from regulation. We describe a subsidy for waste stream reduction that coordinates the system, and we estimate the value of coordination. We also describe a bonus that encourages truthful reporting by project companies, and evaluate the relative cost and effectiveness of the subsidy and the bonus. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 228–247, 2015     

Modeling and solution for the ship stowage planning problem of coils in the steel industry

We consider a ship stowage planning problem where steel coils with known destination ports are to be loaded onto a ship. The coils are to be stowed on the ship in rows. Due to their heavy weight and cylindrical shape, coils can be stowed in at most two levels. Different from stowage problems in previous studies, in this problem there are no fixed positions on the ship for the coils due to their different sizes. At a destination port, if a coil to be unloaded is not at a top position, those blocking it need to be shuffled. In addition, the stability of ship has to be maintained after unloading at each destination port. The objective for the stowage planning problem is to minimize a combination of ship instability throughout the entire voyage, the shuffles needed for unloading at the destination ports, and the dispersion of coils to be unloaded at the same destination port. We formulate the problem as a novel mixed integer linear programming model. Several valid inequalities are derived to help reducing solution time. A tabu search (TS) algorithm is developed for the problem with the initial solution generated using a construction heuristic. To evaluate the proposed TS algorithm, numerical experiments are carried out on problem instances of three different scales by comparing it with a model‐based decomposition heuristic, the classic TS algorithm, the particle swarm optimization algorithm, and the manual method used in practice. The results show that for small problems, the proposed algorithm can generate optimal solutions. For medium and large practical problems, the proposed algorithm outperforms other methods. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 564–581, 2015     

HLA框架构建空战导弹武器作战效能设计

武器系统作战效能是指在攻防对抗的战场环境下完成规定任务的能力,武器系统的效能是研制、使用该系统所追求的总目标。为获得空战导弹武器作战效能,避免传统主观评价带来的缺陷,设计了采用仿真方法评价空战导弹武器作战效能的架构。设计了基于HLA(high level architecture)的空战仿真框架和组成模块,对HLA的盟员进行了开发,规划了接口,提出了能够保证仿真实时性的整体方案。     

日本海军舰队与南京大屠杀

上海沦陷后,溯江而上的日本海军舰队,先后突破中国军队在长江上设置的江阴、镇江和江宁三要塞区防线,进至南京下关江面,完成从长江水路对南京的包围。向南京进军途中,日本海军舰队协助日本陆军登陆长江北岸,并射击江面中国船只,封锁长江水路。临近和到达南京后,日本海军舰队向江岸及江面试图逃离南京的中国败兵、难民肆意射击,封锁了中国败兵、难民从长江逃离的通道。日本海军舰队是南京大屠杀的元凶之一。有关该课题的研究应该得到学术界进一步重视。