一类不匹配不确定非线性系统鲁棒变结构控制

针对一类具有不匹配非参数化不确定性的非线性系统 ,设计出一种鲁棒变结构控制器。该控制器能够保证当时间 t趋于无穷时 ,闭环控制系统的输出跟踪误差趋于零。仿真实例说明了该控制器具有满意的控制效果     

微波反馈调制型虚阴极振荡器的粒子模拟

用三维全电磁PIC方法对一种利用反馈微波信号调制入射电子束的新型虚阴极振荡器进行了粒子模拟研究。在外加450kV电压的自洽发射状态下,得到的微波峰值输出功率可达数百兆瓦,微波主频位于C波段,瞬时峰值效率≥5％,主模式为TE10模,与试验结果符合较好。     

柱锥级联型爆磁压缩发生器的实验研究

研究了柱锥级联型爆磁压缩发生器。给出了主要实验结果。发生器的负载是3.5μH,最大电流是55.8KA,上升前沿是14.3μs,电压为30.5KV。平均电流放大倍数是6.4。     

红外脉冲强光辐射产生技术研究

定向红外脉冲强光辐射技术是定向红外对抗中的关键技术,主要用来破坏敌方精确制导武器或C4I系统的红外传感器。本文进行了三种产生技术的研究,即爆炸激励惰性气体,多丝电爆激励惰性气体和多点同步爆燃药物。在同步爆燃产生技术的研究中,当有效载荷弹药为0.2kg时,在距离源50m处得到三个波段(1～3、3～5、8～12μm)的辐射强度为(2.00～3.55)×l05W／Sr,脉冲半高宽为约20ms的强红外辐射脉冲。     

雷达故障"板级定位"诊断系统的设计

为故障精确定位而设计的雷达故障诊断系统,利用VXI测试仪器为硬件平台,设计了基于征兆(测点)的集成推理软件平台.对征兆的测试数据(含结果)进行采集,基于序贯分类方法的数据结果,再进行故障的合理识别、推理和判断,推断出正确的结果,将故障定位在板级(即最小可更换单元).     

Scheduling patients in an ambulatory surgical center

This paper presents a deterministic approach to schedule patients in an ambulatory surgical center (ASC) such that the number of postanesthesia care unit nurses at the center is minimized. We formulate the patient scheduling problem as new variants of the no‐wait, two‐stage process shop scheduling problem and present computational complexity results for the new scheduling models. Also, we develop a tabu search‐based heuristic algorithm to solve the patient scheduling problem. Our algorithm is shown to be very effective in finding near optimal schedules on a set of real data from a university hospital's ASC. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2003     

武器装备作战控制软件管理方法

随着科学技术不断进步 ,微处理器及其作战控制软件已被现代武器装备大量采用 ,作战控制软件发挥的作用越来越大 ,对软件的管理亦更加重要 ,通过对作战控制软件管理方面存在的问题的分析 ,提出了加强武器装备作战控制软件管理的方法     

一类多目标模糊系数线性规划问题

讨论了一类所有系数均为模糊数的多目标线性规划问题 .通过对模糊数的比较 ,将模糊多目标线性规划模型转化为清晰的多目标模型 ,并应用一种基于线性隶属函数的模糊规划算法求其协调解 .最后给出了一个数值例子 .     

The selection allocation problem

The Selection Allocation Problem (SAP) is a single period decision problem which involves selecting profit‐maximizing (or cost‐minimizing) activities from various distinct groups, and determining the volume of those activities. The activities in each group are selected subject to the availability of that group's resource, which is provided by either pooling or blending raw inputs from several potential sources. Imbedded in the decision process is the additional task of determining how much raw input is to be allocated to each group to form the resource for that group. Instances of this problem can be found in many different areas, such as in tool selection for flexible manufacturing systems, facility location, and funding for social services. Our goal in this paper is to identify and exploit special structures in the (SAP) and use those structures to develop an efficient solution procedure. © 1999 John Wiley & Sons, Inc. Naval Research Logistics 46: 707–725, 1999     

灰色理论GRA模型在舰船生命力论证中的应用

运用灰色系统理论中的灰色关联分析法对舰船生命力进行了综合评判,建立了在不同设计方案中的优选模型,并以舰艇动力系统的设计为例,运用GRA对其进行优化选型。结果分析表明,此方法简单易行,结果准确可靠,可为系统设计方案的选优提供理论依据。