查询词典 stochastic control

It is difficult to get the best inventory control policy of stochastic inventory system by analytical method.

有效的库存控制策略可以降低库存成本，从而降低企业的经营成本，提高企业在市场中的竞争力。

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

Methods Uses the stochastic comparison the principle to divide into 84 example capillarity bronchitis trouble the treatment group and the control group.

采用随机对照的原则将84例毛细支气管炎患儿分为治疗组和对照组。

It is a complex optimization system to elevator group control system with multi-objective,stochastic and nonlinear characteristics.

电梯群控系统是一个复杂的决策系统，具有多目标性、随机性和非线性等特点，难以采用精确的数学模型加以描述，因而传统的控制方法很难提高系统性能。

The trajectory theory model of air target was made up according to its basic rule of flight control. A stochastic difference equation to model the air target movement in inertial frame coordinates was introduced.

根据空中目标飞行控制的基本规律，首先建立了空中目标航迹分布的理论模型，并在惯性坐标系中建立了基于随机微分方程的目标运动模型。

On the basis of that, the latitudinal attitudes of the shipping are estimated by using Kalrnan filtering. Then, the stochastic optimal control schemes of the latitudinal attitudes are also studied.

在此基础上，用卡尔曼滤波方法对其横向所受力矩进行了最优估计，并进行了横向姿态的随机LQG控制规律的研究。

Stochastic optimal control is an important branch of control theory.

随机最优控制是现代控制理论的一个重要分支。

The paper has investigated the robust control and simulation of systems with stochastic perturbation in internal model control structure.

在内模控制结构下对一类随机摄动系统的鲁棒控制及其仿真研究作了探讨。

The optimal task control strategy of the manufacturing cell is obtained by the combination of the uniform technology and the stochastic dynamic programming. The simulation results tesity the feasibility and validity of the control strategy.

结合一致化技术和随机动态规划的方法，得到知识化制造单元的最优任务控制策略；仿真结果表明了所求得的控制策略是可行和有效的。

In order to meet the ride comfort of the heavy truck cab when on line-haul, the H2 control algorithm based on the linear matrix inequalities is presented for the active control of a 6 degree-of-freedom half-heavy-truck suspension system model. The road disturbance is integral white-noise stochastic signal.

为了满足长途运输时重型卡车行驶的平顺性要求，利用基于线性矩阵不等式的H2控制算法对驾驶室安装了主动悬置的六自由度1/2重型卡车模型进行振动控制，所采用的路面激励为积分白噪声随机路面激励。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了