基于GIS的人防工程信息管理系统的设计与实现

以提高人防工程管理质量、效益、信息化为根本目的,运用地理信息系统、计算机、网络、数据库等技术,对人防工程信息管理系统(CSMIS)及其应用进行了研究,包括系统总体设计、技术结构、工程信息数据的获取与处理、系统功能及开发实例演示等方面。开发实例表明,CSMIS对提高工作效率、发挥工程效益具有重要作用,对城市信息化研究具有重要参考价值。     

基于 DMSP/OLS 数据的城市扩张研究

为研究太原市城市扩张动态变化,采用 DMSP/OLS(Defence Meteorological Satelite Program/OprationalLinescan System)夜间灯光数据结合统计数据法提取城市建成区,提出加权重心转移法提取城市重心,并从用地扩张时空特征、城市扩张类型、基于灯光强度的城市重心迁移几个方面展开研究。结果表明,太原市城市建成区持续扩张,且城市重心不断向南移动。1992 ～2002 年,太原市主要扩张走势为向西以及西南方向扩张,为填充增强主导扩张类型; 2002 ～2012 年扩张强度尤其明显,主要扩张走势为正南、东南方向扩张,为外延主导扩张类型。     

以DIASS程序为基础的饱和土与防护结构相互作用动力分析研究

介绍了新开发的防护结构动力有限元分析程序DIASS系统。该系统装有空爆冲击波荷载数值自动生成器,并可将基础土壤模拟为饱和多孔介质模型,采取多重子结构技术进行结构与土体相互作用的动力分析。文中利用该程序系统进行数值试验,给出若干初步结论。     

防空导弹武器装备最佳服役年限研究

基于技术与经济两方面的特点,提出了防空导弹武器装备的最佳服役年限决策模型,对影响防空导弹装备最佳服役年限的因素进行了研究,提出了一些有价值的结论,为武器系统最佳服役年限的确定问题提供了参考。     

Strategic defense and attack for series and parallel reliability systems

A system of independent components is defended by a strategic defender and attacked by a strategic attacker. The reliability of each component depends on how strongly it is defended and attacked, and on the intensity of the contest. In a series system, the attacker benefits from a substitution effect since attacker benefits flow from attacking any of the components, while the defender needs to defend all components. Even for a series system, when the attacker is sufficiently disadvantaged with high attack inefficiencies, and the intensity of the contest is sufficiently high, the defender earns maximum utility and the attacker earns zero utility. The results for the defender (attacker) in a parallel system are equivalent to the results for the attacker (defender) in a series system. Hence, the defender benefits from the substitution effect in parallel systems. With budget constraints the ratio of the investments for each component, and the contest success function for each component, are the same as without budget constraints when replacing the system values for the defender and attacker with their respective budget constraints.     

影响我国男子篮球防守问题的探讨

从多次国际男篮大赛可以看出我国男篮的防守与国际水平相关悬殊,本文通过对影响我国男篮防守的几个因素进行分析研究,提出合理化建议。     

A Tabu Search Heuristic for Resource Management in Naval Warfare

Effective utilization of scarce resources, in particular weapon resources, is a prominent issue in naval anti-air warfare. In this paper, defence plans are constructed to guide the allocation and scheduling of different types of defence weapons against anti-ship missiles, subject to various physical and operational constraints. To reduce the frequency of replanning, decision trees are considered to explicitly account, in a probabilistic manner, for all possible outcomes of a particular action. A construction heuristic is first developed to generate an initial tree. A tabu search heuristic then improves this tree through the removal or addition of defence actions, followed by update operations aimed at maintaining the consistency. Numerical results obtained on scenarios with an increasing number of threats show that substantial improvements, in terms of survivability of the ship, can be obtained in reasonable computation times using tabu search.