面向Agent的海军军械勤务辅助支持系统的逻辑构建

结合分布式人工智能中的Agent技术和军械勤务辅助支持系统的特点 ,研究了面向A gent的军械勤务辅助支持结构。结合该系统介绍了Agent和多Agent系统的概念 ,讨论了A gent的通信机制     

物理实验课程教学体系改革初探

为适应21世纪发展需要,培养具有创新能力的高素质人才,物理实验课程在认真审视传统教学模式的基础上,对课程教学体系进行了改革探索.介绍了新教学体系在教学内容、教学手段、教学方法等方面改革的具体规划和作法,并对教学内容、教学手段的现代化,开放式教学,层次教学进行了讨论.     

建筑消防设计中疏散时间的确定方法

本文针对建筑消防设计中疏散时间计算这一关键问题 ,利用疏散行为指数确定生活不能自理的人的疏散能力 ,进而确定其疏散时间 ,为建筑消防安全设计和防火管理工作提供理论依据。文中介绍的方法、计算公式及步骤简捷 ,具有一定的实用价值。     

消防监督管理咨询专家系统的开发及应用——关于运用计算机和因特网提高消防管理现代化水平的思考

本文针对消防教学和消防管理工作的实际,探讨了消防监督管理咨询专家系统的开发和应用课题,并展望了如何运用多媒体和因特网工具提高消防管理现代化水平的前景。     

Local search methods for the discrete time/resource trade-off problem in project networks

In this paper we consider the discrete time/resource trade-off problem in project networks. Given a project network consisting of nodes (activities) and arcs (technological precedence relations), in which the duration of the activities is a discrete, nonincreasing function of the amount of a single renewable resource committed to it, the discrete time/resource trade-off problem minimizes the project makespan subject to precedence constraints and a single renewable resource constraint. For each activity, a work content is specified such that all execution modes (duration/resource requirement pairs) for performing the activity are allowed as long as the product of the duration and the resource requirement is at least as large as the specified work content. We present a tabu search procedure which is based on a decomposition of the problem into a mode assignment phase and a resource-constrained project scheduling phase with fixed mode assignments. Extensive computational experience, including a comparison with other local search methods, is reported. © 1998 John Wiley & Sons, Inc. Naval Research Logistics 45: 553–578, 1998     

椭圆弹道射程角和飞行时间公式的一种推导方法

本文利用椭圆弹道长轴方向有一常量的性质,计算了被动段弹道的射程和飞行时间。     

测量TOA和DOA的单站无源定位跟踪可观测条件

单站无源定位跟踪技术中,可观测性分析是一个关键问题,但是由于TOA测量方程的非线性程度太高,直接通过计算Jacobin矩阵得到的可观测矩阵形式非常复杂,很难得出明确的分析结果。采用新的思路推导了一种TOA测量方程的线性化方程,分析了测量TOA和DOA单站无源定位的可观测条件。最后给出了计算机仿真结果。     

机动受限舰艇使用火箭诱杀弹对抗声自导鱼雷仿真研究

机动受限的舰艇防御声自导鱼雷是常见的作战态势之一,而对抗武器的选择和使用就是此时保证舰艇安全的关键。对此在分析作战态势的基础上选择火箭诱杀弹作为对抗武器,并建立其数学及仿真模型,在设定的战术背景下运用蒙特卡洛法进行仿真,对采用不同的发射数量、发射时机,以及不同的对抗武器时舰艇的生存概率进行了比较,理论验证了机动受限时舰艇选择火箭诱杀弹对抗声自导鱼雷的有效性,同时提出了其使用过程中值得注意的战术问题,为部队实际应用武器提供了理论依据。     

战术导弹连射试验测控软件关键技术

针对导弹的多发连射试验,在单发导弹飞行试验实时测控软件系统的基础上,研究了I/O缓冲设置、多发射信号的接收与识别、第n发导弹数据处理时机等关键技术.解决了研发用于战术导弹连射试验测控软件系统中的多项难题,使得靶场实时测控软件系统能够满足多发导弹连射试验的航区安全控制需要.     

Determining a threshold control policy for an imperfect production system with rework jobs

Consider a threshold control policy for an imperfect production system with only a work center handling both regular and rework jobs. An imperfect production system studied here, generates defect jobs by factors other than machine failures. A threshold control or (ω, s) policy sets the guideline for a work center to switch between regular and rework jobs. A production cycle begins with loading and processing of several batches of regular jobs with a lot size equal to s. The outcome of each completed regular job is an independent Bernoulli trial with three possibilities: good, rework, or scrap. Once the work center accumulates more than a threshold ω of rework jobs, it finishes the last batch of regular jobs and switches to rework jobs. The objective of this research is to find a threshold ω and a lot size s that maximize the average long‐term profit. The ultimate goal is to construct a simple algorithm to search for ω and s that can be implemented directly in production management systems, as a result of this work. © 1999 John Wiley & Sons, Inc. Naval Research Logistics 46: 273–301, 1999