某加油车液压系统的温升控制

温升控制是液压系统设计的重要内容，其效果好坏直接影响着液压系统工作的可靠性。针对某加油车液压系统连续工作时间长、结构紧凑等特点，设计了一种新型的“油冷蛇形管”式液压油温控制系统，即将加油车自身输转的柴油导入液压油箱内的冷却管，对液压油实施强制冷却。经试验验证，取得了良好的温控效果。该方法取消了冷却水源，简化了结构，并达到了控制油温的目的，对类似系统的设计具有较好的借鉴意义。     

无线城市技术在社会公共领域应用探析

介绍了无线城市概念，阐述了无线城市技术WiMAX＋Wi—Fi Mesh原理，探析了其在社会公共安全、应急指挥系统和智能通信系统中的应用。     

论岛屿应急救援体系的构建

为全面提高海南省岛屿应急救援能力,有效防范和应对灾害事故和突发事件,保护人民生命财产安全,提出建立岛屿应急救援体系的思路,构建岛屿应急救援专业队伍和多种形式消防队伍有效联动的综合性应急救援力量体系。     

外弹道数据融合实时算法研究

信息融合技术可以大大减轻指挥决策的工作量,增加信息置信度,减少模糊性,改善系统可靠性.针对靶场实时测控数据处理中急待解决的成片野值干扰等难题,在实时环境中采用数据融合处理方法,讨论了外弹道数据融合实时算法所面临的关键技术,并通过分析与论证得出可行性结论.结论对进一步的系统设计与软件实现具有指导意义.     

无人直升机辨识的一种新方法

针对无人直升机的辨识建模问题,提出了把频率响应辨识法和遗传算法相结合的一种新的辨识方法.该方法充分结合了频率响应辨识法抗噪声能力强、对输入信号通用性强、以及遗传算法的全局寻优特性的优点,极大地提高了辨识的准确性.与最小二乘法、Levy方法的对比仿真结果表明,这种方法辨识精度更高,具有重要的工程使用价值.     

The effects of model parameter deviations on the variance of a linearly filtered time series

We consider a general linear filtering operation on an autoregressive moving average (ARMA) time series. The variance of the filter output, which is an important quantity in many applications, is not known with certainty because it depends on the true ARMA parameters. We derive an expression for the sensitivity (i.e., the partial derivative) of the output variance with respect to deviations in the model parameters. The results provide insight into the robustness of many common statistical methods that are based on linear filtering and also yield approximate confidence intervals for the output variance. We discuss applications to time series forecasting, statistical process control, and automatic feedback control of industrial processes. © 2010 Wiley Periodicals, Inc. Naval Research Logistics, 2010     

构建我国社会应急救援力量体系的思考

通过对国内、国际应急救援形势、体制、力量体系的研究分析，结合我国各类应急救援队伍现状，提出构建我国社会应急救援力量体系的初步设想，旨在从战略上谋划，依靠现有救援力量，集中财力建设一支常态应急救援主体力量和若干专业力量，形成政府领导、统一指挥、反应快速、处置高效的应急救援格局，以满足应急管理工作的需要。     

The building evacuation problem with shared information

In this article, the Building Evacuation Problem with Shared Information (BEPSI) is formulated as a mixed integer linear program, where the objective is to determine the set of routes along which to send evacuees (supply) from multiple locations throughout a building (sources) to the exits (sinks) such that the total time until all evacuees reach the exits is minimized. The formulation explicitly incorporates the constraints of shared information in providing online instructions to evacuees, ensuring that evacuees departing from an intermediate or source location at a mutual point in time receive common instructions. Arc travel time and capacity, as well as supply at the nodes, are permitted to vary with time and capacity is assumed to be recaptured over time. The BEPSI is shown to be NP‐hard. An exact technique based on Benders decomposition is proposed for its solution. Computational results from numerical experiments on a real‐world network representing a four‐story building are given. Results of experiments employing Benders cuts generated in solving a given problem instance as initial cuts in addressing an updated problem instance are also provided. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

考虑扩散效应圆形隧洞热弹性耦合动力响应研究

利用S-H热弹性扩散的基本理论,研究了无限弹性介质中圆形隧洞表面受随时间变化的热冲击的动力响应问题.采用直接求解方法以避免势函数的引入,利用Laplace变换技术,求解热、力、化学耦合控制方程,获得了弹性介质中温度梯度、位移、应力和化学势的积分形式解.最后,利用Laplace逆变换得到数值结果,分析了热、力、化学耦合条件下弹性介质中温度梯度、应力、位移和化学势响应的分布规律.     

反舰导弹纯方位发射捕捉概率计算方法

反舰导弹的纯方位发射对目标信息要求不高,在目标信息的探测越来越艰难的今天,是反舰导弹较为重要的一种发射方式,也将会成为未来海战场上常用的作战方式.介绍了反舰导弹捕捉概率的计算方法和传统纯方位发射的捕捉概率的计算方法,并从分析反舰导弹捕捉概率的计算模型和影响因素出发,指出传统的反舰导弹纯方位发射的捕捉概率计算模型存在不足,并给出了修正后的计算模型.