UCAV编队对地攻击智能决策系统总体结构

UCAV编队对地攻击是未来战争制信息权和制空权的关键所在,结合无人作战飞机(UCAV)与有人驾驶飞机各自的特点和优势,提出了UCAV编队对地攻击系统的基本组成和对地攻击流程.根据UCAV编队对地攻击的战术决策类型和决策方式,构造了UCAV编队对地攻击智能决策系统的总体结构并且提出了决策系统应该解决的关键技术,详细分析了所建立的UCAV编队对地攻击决策系统的决策方式和决策流程,并且对该系统所涉及的关键技术进行了详细的研究.     

基于博弈论的装备科研、购置、维修经费比例关系优化分析

通过不同时期国家战略部署、科研发展情况及经济承受能力对装备经费分配的影响分析,采用博弈的方法,建立了装备科研、购置和维修费之间的比例关系优化模型,给出了寻求纳什均衡点的迭代算法,并进行了仿真计算.仿真结果证明了该方法的可行性与正确性.     

炮闩闩体击针孔强度仿真计算与结构改进

从击针和闩体的装配结构关系入手,在闩体击针室受力分析的基础上,进行了闩体有限元分析,得到了击针室两个不同部位受力时闩体击针孔处的应力和应变情况,从而提出解决闩体镜面击针孔产生凸出或裂纹问题的可行方案。     

能力型防空群指控系统概念模型及效能评估

为提高能力型防空群整体作战能力,应用系统论方法分析了能力型防空群指控系统的构成要素及运行模式,提出了指控系统信息结构力的概念,建立了能力型防空群指控系统概念模型。在此基础上,提出了能力型防空群指控系统效能评估指标体系,运用网络复杂性理论、图论、集合论及信息论方法建立了能力型防空群指控系统的物理性能及信息结构力计算模型,给出了指控系统效能综合评估函数,可为防空指控系统构建提供参考。     

Supply chain coordination with shelf‐space and retail price dependent demand and heterogeneous retailers

We consider supply chain coordination in which a manufacturer supplies some product to multiple heterogeneous retailers and wishes to coordinate the supply chain via wholesale price and holding cost subsidy. The retail price is either exogenous or endogenous. The market demand is described by the market share attraction model based on all retailers'shelf‐spaces and retail prices. We obtain optimal solutions for the centralized supply chain, where the optimal retail pricing is a modified version of the well‐known cost plus pricing strategy. We further get feasible contracts for the manufacturer to coordinate the hybrid and decentralized supply chains. The manufacturer can allocate the total profit free to himself and the retail market via the wholesale price when the retail price is exogenous, but otherwise he cannot. Finally, we point out that different characteristics of the retail market are due to different powers of the manufacturer, and the more power the manufacturer has, the simpler the contract to coordinate the chain will be. © 2010 Wiley Periodicals, Inc. Naval Research Logistics, 2010     

从评价系统看小说人物刻画——以《傲慢与偏见》的两封信为例

本文以系统功能和评价系统理论为依据,分析《傲慢与偏见》中两封信的表现态度系统的语义资源。经过分析笔者发现两封信截然不同的语言表达方式是小说中不同人物性格的外在表现。小说是很好的语言学习材料,我们在分析小说的同时,也让我们欣赏到了作者刻画小说人物的精湛处理。     

一种新的CLEFIA多字节差分故障分析方法

阐述了CLEFIA分组密码算法及故障分析原理,根据在CLEFIA密码第r轮与第（r-2）轮注入多字节故障,提出了一种新改进的针对CLEFIA的多字节故障模型及分析方法,并通过软件仿真实验进行了验证。结果表明,CLEFIA算法的Feistel结构和差分S盒特性使其易遭受多字节故障攻击,而改进算法使得密钥的恢复效率大大提高。     

基于本体的信息与信息空间及其代数结构

实现特定信息环境下基于信息组织的信息资源服务,需要对信息、信息空间有更合适的、形式化的描述。文章基于本体层次对信息、信息的运算、信息之间的关系以及信息空间给出了数学描述并对其代数结构进行了研究。从而为特定信息环境下的信息资源服务提供理论支撑。     

空空导弹越肩发射初制导转弯控制与仿真

针对空空导弹越肩发射初制导俯仰平面180°转弯,提出了一种基于最优控制理论的最优转弯方法,该方法是确定一个最佳推力方向角,使转弯完成时导弹的末端速度最大。建立了简化的用于姿态控制的姿态动力学模型,采用反作用喷气控制系统(RCS)设计了导弹的姿态控制律。对空空导弹180°转弯的飞行过程进行了仿真并给出分析结果。     

Cell structure of microcellular combustible object foamed by supercritical carbon dioxide

In order to solve the issue that the combustible objects for cased telescoped ammunition (CTA) didn't burn completely during the combustion process, the microcellular combustible objects were foamed with numerous cells in the micron order to improve the combustion performance by the supercritical carbon dioxide (SCCO₂) foaming technology. As the cell structure determined the combustion properties of microcellular combustible objects, the solubility of SCCO₂ dissolved into the combustible objects was obtained from the gravimetric method, and scanning electron microscope (SEM) was applied to characterize the cell structure under various process conditions of solubility, foaming temperature and foaming time. SEM images indicate that the cell diameter of microcellular combustible objects is in the level of 1 μm and the cell density is about 10¹¹ cell⋅cm⁻³. The microcellular combustible objects fabricated by the SCCO₂ foaming technology are smooth and uniform, and the high specific surface area of cell structure can lead to the significant combustion performance of microcellular combustible object for CTA in the future.