基于效果的舰载软硬武器近卫火力分配研究

针对水面舰艇利用软硬杀伤武器抗击近区目标作战使用问题,提出基于毁伤失能和据止等作战效果的软硬武器使用火力决策方法,建立水面舰艇近卫作战软硬武器火力分配模型,通过实例建立模型,并将建立的非线性模型转化成利用匈牙利算法进行解算的指派问题进行模型解算,研究的方法和结果对水面舰艇近卫作战火力分配决策方案的制定具有一定的指导意义。     

舰载火箭炮子母弹射击火力分配模型

摘 要：由于舰载火箭弹的弹道特性与普通身管炮弹有着明显的差异,传统的舰炮射击效力计算及火力分配方法不适用于舰载火箭炮。结合舰载火箭弹弹道特点,分析了其射击误差,探讨了集群目标的简化处理方法,提出了一种基于蒙特卡洛法的舰载火箭炮对岸射击最优效力射火力分配计算模型。通过举例分析表明,该方法切实可行,利用该模型可以提高射击指挥员指挥决策的科学性。     

无人作战飞机近距对抗占位策略与方法

针对无人机作战中前置追踪占位法存在导弹发射条件苛刻且目标机动时成功率锐减和离散对策占位法应用局限性较大等问题,提出一种无人作战飞机近距对抗占位策略与导引方法。该占位策略为解算无人机近距对抗占位的伪跟踪点,并设计一种三维变结构导引律,引导无人机完成近距作战占位机动。仿真结果表明,该占位策略与导引方法快速有效,满足无人机近距对抗时的战术指标要求。     

Cinematic representations of the Mexican Narco War

This essay provides an overview of the eras of Mexican cinema followed by an analysis of 10 Spanish-language narco cinematic representations, an overview of the eras of American cinema followed by an analysis of 10 English language narco cinematic representations, and a conclusion that compares and contrasts the Mexican and US narco war cinematic experience. Due to divergent national trajectories – Mexico is engulfed in narco violence and corruption while the United States is not – more differences than similarities exist between these national cinematic genres. Dark spirituality themes are also increasingly evident in more recent narco war films.     

A characterization of optimal base‐stock levels for a multistage serial supply chain

In this article, we present a multistage model to optimize inventory control decisions under stochastic demand and continuous review. We first formulate the general problem for continuous stages and use a decomposition solution approach: since it is never optimal to let orders cross, the general problem can be broken into a set of single‐unit subproblems that can be solved in a sequential fashion. These subproblems are optimal control problems for which a differential equation must be solved. This can be done easily by recursively identifying coefficients and performing a line search. The methodology is then extended to a discrete number of stages and allows us to compute the optimal solution in an efficient manner, with a competitive complexity. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 32–46, 2016     

Brazilian National Defence Policy: foreign policy,national security,economic growth,and technological innovation

ABSTRACT

With the world’s ninth largest economy and comprising nearly 60% of South America’s GDP, 47% of its territory, and 49% of its population, Brazil has become a regional power and an important actor in world affairs over recent decades. This scenario has led the government to re-evaluate its role in the world order, resulting in the enactment of the National Defence Policy, whose objective was to consolidate the country as a regional power while at the same time addressing national security issues, promoting economic development through a series of defence programmes, restructuring the defence industrial base, fostering innovation through technology and knowledge transfer to Brazil, and indigenous research and development. However, the policy’s implementation suffers from several challenges discussed in this article, which may test the capability and competence of Brazilian policymakers, military, industrialists, and other individuals and organisations involved in its implementation.     

Fettered Self-determination: South Sudan’s Narrowed Path to Secession

The interpretation of self-determination as a vote for secession shaped the state that South Sudan has become since the 2011 referendum. Self-determination, this paper argues, is a democratic political process in which citizens determine their preferred form of statehood and nature of governance for their country. In South Sudan, however, political actors—with international support—established conditions that reduced such complex democratic processes to narrow technical matters. Equating self-determination with secession consolidated political and military domination in a process designed to end such domination. This was done at the expense of a more inclusive, process-oriented and political interpretation of self-determination.     

红外脉冲强光辐射源中电爆丝爆炸机理研究

利用电爆丝的一种红外脉冲强光辐射新技术,从理论和实验上研究了电爆丝的爆炸机理。用电爆丝绝热加热模型数值模拟了电爆丝在冲击大电流作用下的电爆炸特性,电爆丝根数对电爆炸特性的影响。实验结果与理论模拟相一致。     

变阻抗传输线技术的理论研究

主要用数值模拟的方法研究了变阻抗传输技术,初步探索了变阻抗结构,揭示了阻抗渐变技术在超宽带高功率微波辐射研究中的重要意义。     

Capacitated selection problem

Optimizing the selection of resources to accomplish a set of tasks involves evaluating the tradeoffs between the cost of maintaining the resources necessary to accomplish the tasks and the penalty cost associated with unfinished tasks. We consider the case where resources are categorized into types, and limits (capacity) are imposed on the number of each type that can be selected. The objective is to minimize the sum of penalty costs and resource costs. This problem has several practical applications including production planning, new product design, menu selection and inventory management. We develop a branch‐and‐bound algorithm to find exact solutions to the problem. To generate bounds, we utilize a dual ascent procedure which exploits the special structure of the problem. Information from the dual and recovered primal solutions are used to select branching variables. We generate strong valid inequalities and use them to fix other variables at each branching step. Results of tests performed on reasonably sized problems are presented. © 1999 John Wiley & Sons, Inc. Naval Research Logistics 46: 19–37, 1999