基于可拓方法的C3I作战方案生成与评价

作战指挥决策支持系统是指挥自动化系统的重要组成部分,作战方案生成与评价是作战指挥决策支持系统的基本功能.根据作战指挥决策支持系统特点将可拓方法应用于作战方案生成与评价,并分析了其优势所在.结合空战案例运用发散树方法进行作战方案集的开拓,并利用优度评价方法进行作战方案的评价,从而得到最佳作战方案.     

基于HLA/RTI的炮兵指挥系统仿真设计与开发

HLA高级体系结构作为新一代分布式仿真技术标准,解决了仿真系统中的可重用和互操作性问题,在C3I系统仿真领域有着十分广泛的应用。分析了C3I系统仿真的可行性和必要性,简要介绍了HLA高级体系结构的技术规范,提出了一种基于HLA/RTI的能与实践相接的、易于扩展的炮兵指挥系统仿真框架,并依据联邦开发与执行过程模型(FEDEP)给出了该系统的设计与开发过程。     

用于高炮防空指挥系统的分布式交互仿真

简要介绍了高炮防空指挥系统分布交互仿真系统的组成 ,各模块的功能、特点。重点介绍了指挥系统中的人 -机接口 ,对与指挥系统设计有关的仿真结果进行了分析     

中立型泛函微分方程的周期解

综合利用D算子的性质及Horn不动点定理[8],研究了有限时滞中立型泛函微分方程的周期解的存在性问题,证明了解的一致最终有界性蕴含周期解的存在性,从而推广了著名的Yoshizawa周期解定理[3],同时推广了[1]和[2]的主要结果.     

三维声音处理技术的研究

在声音定位原理研究的实验中,运用软件编程的方法改变原有．WAV文件(单声道、16位)的数据存储格式为有空间感立体声的．WAV声音文件(双声道、16位),在变换过程中加入了ITD、IID的数学模型,效果令人满意,听者能明显感到随着声源位置信息的改变,声源位置、音量也在改变     

Defense Firms Adapting to Major Changes in the French R&D Funding System

The structural changes inside the French innovation system have impacted the role of defense firms since the late 1980s. Major changes have affected the defense budget and public R&D funding system in particular. The aim of this article is to understand French defense firms’ repositioning within the National Innovation System (NIS) based on an analysis of their R&D behavior over a long period of time (1987–2010). We show that French defense firms remain major players in the NIS and faced up to these major changes by adapting the funding of their R&D and their research priorities and rolling out new innovation capabilities. Additionally, they developed new innovation models to take advantage of new collaborative partnerships developed for civil and military markets.     

利用Unity3D引擎实现某飞行器攻防对抗仿真

为了实现某飞行器攻防对抗的可视化仿真,利用可视化模型数据库构建技术,构建了全尺寸、高沉浸感、多视角的可视化仿真环境。利用Unity3D引擎的脚本技术,实现了导弹尾焰、大气云层、爆炸冲击波、视点跟随等特效与功能。该平台使用C＃和Unity3D引擎进行开发,实现了攻防双方参数设置、计算数据和图表输出、仿真画面输出等功能,并能在多次仿真后,对不同的参数进行统计分析。该平台具有较好的扩展性,能够逼真再现飞行器的攻防对抗过程。结果表明,对于需要不断修正数学模型以逼近真实的攻防对抗过程,每次修正都能立即通过可视化平台查看、验证模型修改对攻防对抗过程带来的影响,对飞行器的设计、作战使用具有一定的参考价值。     

可移植人体外耳支架的3D打印关键技术

探索使用医用硅胶制作患者个体外耳支架的关键技术,使用计算机断层扫描和逆向建模技术得到对应患者个体的外耳数字模型,利用3D打印技术制造人体外耳支架模具,并使用医用硅胶MED 4735完成人体外耳支架的制作成型。动物实验验证了其生物相容性,证明了方法的可行性。通过该技术制作的硅胶人体外耳支架可以高度模仿患者特定的耳廓形状,支架精度高、制造周期短、无生物排异,可为替代肋软骨雕刻人体外耳支架进行耳廓缺损治疗提供依据。     

Convolutions and generalization of logconcavity: Implications and applications

Additive convolution of unimodal and α‐unimodal random variables are known as an old classic problem which has attracted the attention of many authors in theory and applied fields. Another type of convolution, called multiplicative convolution, is rather younger. In this article, we first focus on this newer concept and obtain several useful results in which the most important ones is that if is logconcave then so are and for some suitable increasing functions ?. This result contains and as two more important special cases. Furthermore, one table including more applied distributions comparing logconcavity of f(x) and and two comprehensive implications charts are provided. Then, these fundamental results are applied to aging properties, existence of moments and several kinds of ordered random variables. Multiplicative strong unimodality in the discrete case is also introduced and its properties are investigated. In the second part of the article, some refinements are made for additive convolutions. A remaining open problem is completed and a conjecture concerning convolution of discrete α‐unimodal distributions is settled. Then, we shall show that an existing result regarding convolution of symmetric discrete unimodal distributions is not correct and an easy alternative proof is presented. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 109–123, 2016     

运用3D打印技术提升装备保障训练水平

3D打印技术是一种快速成型技术,在不同领域均有成熟应用。部队现有的技术人才构成、成熟配套的软硬环境、打印材料的多样性,为3D打印技术应用于装备保障训练提供了可能。目前,部队现有的装备保障训练手段仍较为传统、单一,特别是工作原理、故障排除课目很难保证训练效果,严重制约装备保障能力提高。应用3D打印技术,着重对重难点课目进行设计,解决"无法训、训不到、效果差"等训练瓶颈问题,是对现有训练手段的丰富和完善,是继模拟训练、虚拟训练之后的又一新手段、方法,对提高装备训练水平、保证训练质量有重大意义。