消防部队联合作战组织与指挥

根据消防部队联合作战的特点,分析目前联合作战中存在的问题,提出联合作战的组织指挥原则,并从六个方面阐述了联合作战的组织指挥方法。     

浅论证人免证权

证人免证权的含义及特征 ;我国历史上的证人免证制度 ;国外证人免证权的相关规定 ;证人免证权的价值 ;我国证人免证权的立法现状及建议     

我国建筑物坍塌事故救援中的问题及对策

从建筑物坍塌事故的特点入手 ,对建筑物坍塌事故救援工作中出现的职责不明、装备不足、缺少对策等对救援工作影响较大的几个问题进行了深入分析 ,并针对出现的问题 ,提出了相应改进对策。     

邓小平政治体制改革思想的系统论说

政治体制改革思想是邓小平理论的重要组成部分。邓小平同志对我国政治体制改革的必要性、目标、内容、原则和评价标准等作了系统的阐述。     

随机脉宽调制的Simulink仿真研究

应用Matlab仿真平台,开发了随机脉宽调制的Simulink仿真文件,运用此仿真文件,研究了逆变器的谐波能量分布随随机增益变化的规律,仿真结果有助于实际装置的研制。     

变异系数在可靠性中的应用

对使用变异系数描述随机变量的离散程度进行分析,推导了可靠性工程中常用的4种概率分布的变异系数与分布参数之间的关系.以机械产品整机及其零部件不同失效模式的寿命变异系数的取值范围为实例,说明了变异系数在可靠性工程中的应用.     

多元线性模型的广义逆诊断问题

在实际问题中,经常需要考虑多个因变量对多个自变量的相互依赖关系,但在运算过程中经常会碰到奇异矩阵不能求逆的问题.通过推导任意2矩阵的差的广义逆,解决了这一问题,继而得出多元线性模型的参数估计,最后推出数据删除模型异常点的判断依据.     

装甲装备保障综合数据库安全研究

确保装甲装备保障综合数据库安全可靠是装甲装备保障信息化建设中的一项重要内容.全面分析了装甲装备保障综合数据库安全保密特点及安全内容,阐述了数据库系统的安全机制,提出了装甲装备保障综合数据库可以采取的安全措施.     

Designing acceptance sampling schemes for life testing with mixed censoring

Mixed censoring is useful extension of Type I and Type II censoring and combines some advantages of both types of censoring. This paper proposes a general Bayesian framework for designing a variable acceptance sampling scheme with mixed censoring. A general loss function which includes the sampling cost, the time‐consuming cost, the salvage value, and the decision loss is employed to determine the Bayes risk and the corresponding optimal sampling plan. An explicit expression of the Bayes risk is derived. The new model can easily be adapted to create life testing models for different distributions. Specifically, two commonly used distributions including the exponential distribution and the Weibull distribution are considered with a special decision loss function. We demonstrate that the proposed model is superior to models with Type I or Type II censoring. Numerical examples are reported to illustrate the effectiveness of the method proposed. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2004     

A fluid queueing model for link travel time moments

We analyze the moments of the random time required for a vehicle to traverse a transportation network link of arbitrary length when its speed is governed by a random environment. The problem is motivated by stochastic transportation network applications in which the estimation of travel time moments is of great importance. We analyze this random time in a transient and asymptotic sense by employing results from the field of fluid queues. The results are demonstrated on two example problems. © 2003 Wiley Periodicals, Inc. Naval Research Logistics, 2004