AC—DC变换技术的进展与展望

本文回顾了电力电子技术在ＡＣ—ＤＣ变换方面的进展,分析了已提出的技术的特点．并展望了该领域进一步研究的趋势。     

智能飞机悬挂物及武器发射/投放管理系统研究

采用人工智能技术研究飞机悬挂物及武器发射／投放管理系统,实现对飞机悬挂物及武器发射／投放的自动化、智能化控制与管理,以此减轻驾驶员的工作负担,提高飞机的作战效能和自身的安全性及生存率,并对系统功能进行了具体的编程仿真。     

关于空投反潜鱼雷最佳入水点的探讨

“观测—定位—决策”组成了航空反潜作战的一个战术周期。高效率的反潜作战除了加速决策过程,缩短决策周期之外,还体现在选择一个最佳的决策方案中。其中,最佳入水点的选择就是一个重要的决策问题。本文在充分考虑空投鱼雷反潜特点基础上,分两种情况从理论上探讨了反潜鱼雷最佳入水位置和投雷入水方位。     

Comparison of rank aggregation methods based on inherent ability

Ranking is a common task for selecting and evaluating alternatives. In the past few decades, combining rankings results from various sources into a consensus ranking has become an increasingly active research topic. In this study, we focus on the evaluation of rank aggregation methods. We first develop an experimental data generation method, which can provide ground truth ranking for alternatives based on their “inherent ability.” This experimental data generation method can generate the required individual synthetic rankings with adjustable accuracy and length. We propose characterizing the effectiveness of rank aggregation methods by calculating the Kendall tau distance between the aggregated ranking and the ground truth ranking. We then compare four classical rank aggregation methods and present some useful findings on the relative performances of the four methods. The results reveal that both the accuracy and length of individual rankings have a remarkable effect on the comparison results between rank aggregation methods. Our methods and results may be helpful to both researchers and decision‐makers.     

Measuring the Impact of Military Spending: How Far Does a DSGE Model Deviate from Reality?

Dunne, Smith, and Willenbockel (2005) argue that the mainstream growth literature has not found military spending to be a significant determinant of economic growth, yet much of the defense economics literature has noted significant effects. This paper revisits this issue by using a DSGE-VAR approach, combining both theoretical and empirical methods. We present that the DSGE approach (estimated with the Bayesian technique) and the Bayesian VAR with the Minnesota Prior both lead to worse in-sample fit than our proposed DSGE-VAR framework. The DSGE-VAR approach reveals that a positive military spending shock boosts the U.S. economy, increasing per capita real GDP growth, consumption, inflation and interest rate. Our results are robust to alternative model specifications. Future investigations such as exploring an optimal military spending policy could adopt the approach in this paper to determine the best model – empirical, theoretical, or a combination of the two.     

基于模糊综合评判的野战输油管线部队人员绩效评估

本文探讨了野战输油管线部队人员绩效评估的原则,构建了野战输油管线部队人员绩效评估的指标体系和模糊评判模型,并给出了对某野战输油管线大队人员进行绩效评估的实例。     

程序进化器

研究用模拟进化方法进行程序设计的途径。构造了以形式文法为遗传表示的程序进化器,提出了这个进化器使用的有关算法。本文用程序进化器解决了人工蚁问题。     

CORBA分布计算软件平台的一种基于定制机制的优化技术

CORBAIDL语言的描述能力非常弱 ,缺乏描述分布对象动态行为语义的机制 ,软件开发的自动化也只限于生成含有基本功能的后端形式 ,不能满足不同应用的时空需求。通过扩展IDL文件中的注释来描述分布对象方法适配的行为 ,提供了一种定制分布对象方法适配行为的机制。这种机制不仅有利于提高分布系统的时空效率和软件自动化的程度 ,而且不影响应用的可移植性和互操作性。另外 ,本文进一步给出了通过扩展CORBAIDL解决类似问题的设计模板。     

对房地产策划的理性思考

随着房地产业的迅速发展,房地产策划在观念、专业化、组织、创新、协作和信息等方面存在着一些与发展不和谐的因素,通过对房地产策划的危机进行理性思考,以寻找战胜危机的可靠途径。在全面分析房地产策划危机的基础上,从贯穿市场意识、主动创造效益、强化整合功能、塑造品牌、引进管理等方面寻找形成房地产策划核心竞争力的源泉,以战胜暂时的危机。其结果证明了房地产策划仍然具有强大的生命力,暂时的危机一定能被克服。     

战役野战油库油料输送力量优化分配研究

如何科学、合理分配战役野战油库油料输送力量是战时油料保障必须面临的一个实际问题。首先根据战役野战油库运油车分配模型得到一个运油车初始分配方案,然后运用计算机模拟技术对分配方案进行模拟,并根据模拟结果不断调整,直至得到优化的分配方案,为制定战役野战油库油料输送计划提供决策依据。