需求可拆分的应急物资调度问题的蚁群算法

应急物资调度问题是个典型的需求可拆分的车辆路径问题,区别于传统的车辆路径问题,将每个需求节点只能由一辆车访问的约束去除,允许需求节点由多辆车进行访问。针对应急物资调度问题的特点,建立相应的多目标车辆路径数学规划模型(SDVRP),并根据模型特点设计改进蚁群优化算法。最后,进行相应的算例分析,验证了该模型和算法的有效性。     

探析美国新军事战略

奥巴马政府2011年以来发布的一系列军事文件,标志着美国新军事战略的形成。文章依据这些文件,结合三年来美军在世界范围内尤其是亚太地区的实际动向,从战略威胁判断、战略指导方针、战略部署调整、作战指导思想和军事力量建设五个方面对新军事战略的内容及实施情况进行了分析。     

采取仿真模拟技术预设战争实现训练与实战接轨

文章研究信息化条件下局部战争战法。利用模拟作战实验室实践检验、论证完善战争设计理论,普及电脑游戏开发战争想象力,借虚拟数学方式预测战争结果。强化“战争设计”对训练的牵引作用,落实训战一致。强调加强军事理论研究的针对性、前瞻性．综合考虑武器装备、战争战例、军事训练水平、人员素质、战役战术等因素,对未来可能发生的战争进行准确预测。     

军事办公建筑被动式节能设计策略

军事办公建筑的节能设计与使用,对推动节能减排、促进军营建设具有重要意义。通过对被动式节能设计策略的研究,从建筑设计的视角,以军事办公建筑设计为突破口,分析能耗现状,明确设计目标和思路,从空间设计布局、围护结构热工性能、遮阳系统设置、自然通风与自然采光等方面,探讨被动式节能设计策略在军事办公建筑设计中的应用。结合特定环境,寻求贯穿节能设计始终的适宜技术,充分发挥被动式节能技术集成的优势。通过多项节能技术的协同作用,可以强化和扩大节能措施带来的节能效应,在降低能耗的同时创造出健康、舒适、高效的办公环境。     

基于MATD的高超声速飞行器反演控制

针对高超声速飞行器弹性体模型,提出了一种基于改进的反正切跟踪微分器(MATD)的鲁棒反演控制器。将控制系统分为高度和速度子系统,采用反演方法设计虚拟控制量和实际控制量。引入MATD对高阶系统虚拟控制量求导,避免了传统反演方法"微分膨胀"的问题。基于MATD设计干扰观测器,对模型不确定项进行精确估计,增强了控制器的鲁棒性。最后,通过实例仿真验证,该控制器对速度和高度指令具有很好的跟踪效果,且具有较强的鲁棒性。     

‘Blackmailing the army’ – ‘Strategic Military Refusal’ as policy and doctrine enforcement: the formation of a new security agent

The study shows how ‘strategic military refusal’ in Israel developed as a rational and institutional means to influence security policies. As opposed to the perspective that sees military refusal as a spontaneous individual act, the study illustrates how organizations operate to distribute military refusal in order to pressure decision-makers to change their military policies. This strategy has proven to be effective when the military is involved with groups that threaten it with refusal – which threatens the military's operational ability and its official and apolitical image. These include soldiers whose civilian authorities, rather than their military commanders, are perceived as an epistemic authority regarding security issues. The case study refers to the impact of strategic military refusal in Israel on security policies and the military doctrine. This was influenced by leftist groups, which, although they belonged to the parliamentary opposition, had dominant presence in the military ranks. Furthermore, the study examines the effect of the use of strategic military refusal on the model of military recruitment.     

Vehicle routing problems with regular objective functions on a path

We investigate the problem of scheduling a fleet of vehicles to visit the customers located on a path to minimize some regular function of the visiting times of the customers. For the single‐vehicle problem, we prove that it is pseudopolynomially solvable for any minsum objective and polynomially solvable for any minmax objective. Also, we establish the NP‐hardness of minimizing the weighted number of tardy customers and the total weighted tardiness, and present polynomial algorithms for their special cases with a common due date. For the multivehicle problem involving n customers, we show that an optimal solution can be found by solving or O(n) single‐vehicle problems. © 2013 Wiley Periodicals, Inc. Naval Research Logistics 61: 34–43, 2014     

近似平面场景多视点图像拼接算法

以小型无人机对地观测为应用背景,研究了近似平面场景多视点图像拼接问题。对于已知粗略相机位姿的情况,提出一种融合相机位姿信息和图像特征点对应信息的方法,采用直接稀疏Cholesky分解方法求解拼接全局优化问题。由该方法得到的拼接结果没有全局变形,局部拼接误差也得到了明显的改善。对于相机位姿未知的情况,先采用structure-from-motion(SFM)方法恢复相机姿态和场景稀疏结构信息,再采用稀疏全局调整方法获得最终的图像变换参数。通过沙盘图像和真实的航拍图像拼接实验验证了算法的有效性。     

军事冲突模糊超对策认知信息的融合

针对现代军事冲突的不确定性和模糊性,用直觉模糊数来表示军事冲突中的局中人对另一局中人在结局空间上的偏好认知,建立了军事冲突的模糊超对策模型,并对实际军事冲突中的各级指挥员对对方策略集和结局偏好的群体认知,应用D-S证据理论进行了有效融合。最后,通过实例分析说明了文中所提出方法的有效性和合理性。