Military spending and growth: a small open economy stochastic growth model

The paper analyzes the effects of military spending on economic growth in a small open stochastic endogenous growth model involving the supply-side and demand-side effects produced by military spending. We show that a rise in the military spending affects economic growth through four channels, including the crowding-out effect, the spin-off effect, the resource mobilization effect, and the portfolio effect. The net effect which depends on these four channels is ambiguous. Hence, we demonstrate that there exists an optimal defense burden that maximizes the economic growth rate.     

基于MDA的C~4ISR系统分析设计方法

先进的分析设计方法是提高C4ISR系统开发质量的有效手段。基于软件领域的MDA思想,提出了基于MDA的C4ISR系统分析设计方法,研究了其开发过程和关键技术。该方法实现以模型为基础的系统开发与优化,通过不同阶段模型的转化演进来推进系统的分析设计,有利于提高系统的设计质量,并支持模型重用。     

参数和非参数滤波算法在贝叶斯估计问题中的比较

在贝叶斯估计问题中常用的滤波算法有两大类,一类是适用于非线性问题的,在卡尔曼滤波算法基础上发展出来的各种参数滤波算法,如扩展的卡尔曼滤波,拟线性卡尔曼滤波及近年提出的基于Unscented变换的Unscented卡尔曼滤波算法等;另一类是基于蒙特卡洛仿真技术的非参数滤波算法--粒子滤波.两类跟踪算法在实际问题中都得到了广泛应用.从原理上对这两类算法中的四种具体算法进行了介绍,重点分析了每种算法的长处及不足,可为实际应用中算法的选择提供依据.     

Delivery‐date and capacity management in a decentralized internal market

We study competitive due‐date and capacity management between the marketing and engineering divisions within an engineer‐to‐order (ETO) firm. Marketing interacts directly with the customers and quotes due‐dates for their orders. Engineering is primarily concerned with the efficient utilization of resources and is willing to increase capacity if the cost is compensated. The two divisions share the responsibility for timely delivery of the jobs. We model the interaction between marketing and engineering as a Nash game and investigate the effect of internal competition on the equilibrium decisions. We observe that the internal competition not only degrades the firm's overall profitability but also the serviceability. Finally, we extend our analysis to multiple‐job settings that consider both flexible and inflexible capacity. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

THE RESEARCH AND IMPLEMENTATION OF COMBINING LOGIC WITH OBJECT­ORIENTED PARADIGM

ＴＨＥＲＥＳＥＡＲＣＨＡＮＤＩＭＰＬＥＭＥＮＴＡＴＩＯＮＯＦＣＯＭＢＩＮＩＮＧＬＯＧＩＣＷＩＴＨＯＢＪＥＣＴＯＲＩＥＮＴＥＤＰＡＲＡＤＩＧＭＺｈｏｕＬｉ;ＷｕＱｕａｎｙｕａｎ（ＤｅｐａｒｔｍｅｎｔｏｆＣｏｍｐｕｔｅｒＳｃｉｅｎｃｅ,ＮＵＤＴ,Ｃｈａｎ...     

求最大避障圆的一种新算法

分析了在给定圆域Ｄ及Ｄ内的障碍点集Ｖ后,用于生成基本避障圆的几个性质定理．然后由这些定理提出了求最大避障圆的一种新算法．用这种方法可降低计算的复杂性和便于人工作图．     

FE 模态计算中对螺栓联接结构的合理建模

分析了模态计算中螺栓联接结构的几种建模方法;对螺栓联接结构提出了一种新的合理建模的方法．     

高射机枪有限元模型研究

建立高射机枪有限元模型的目的在于对其进行动力特性分析和求解动力响应,并作为自动武器动力学仿真的重要组成部分。针对某型高射机枪建立有限元改进模型,建模中,把枪身、托架等简化为空间梁系,下架采用三维等参元模拟,并采用主从自由度法处理了三维元与梁元的联结问题,通过与传统粱单元模型的对比分析,说明改进模型具有较好的精度。     

单兵数字化系统外部通信研究——“数字化战场与单兵数字化系统”系列论文之六

讨论了单兵数字化系统外部通信的功能结构和实现途径，以及战场信息网的无线电网和地域网实现。重点研究了联合战术信息分布系统ＪＴＩＤＳ，包括其ＴＤＭＡ工作方式和多网工作原理。最后研究了单兵数字化系统通信的一个安全问题。     

二次规划的分解问题

二次规划在规划论研究中起着重要的作用。能够对更多更广的一类二次规划给出一个可行的算法是人们长期一直探求的工作。本文在很一般的假设下证明了一个二次规划总可以使之成为凸的超平面上进行分解,并且分解后的每个子规划也是二次的。