控制理论

Viability Theory is applied to the optimal control problem for this class of hybrid dynamic time varying systems in this dissertation for the first time. And the statement about a characterization of the extended value functions as the unique lower semicontinuous solution to a Bensoussan-Lions type QVI is proved.

本文首次将生存理论应用到这一复杂系统的最优控制问题中来，得到了最优控制问题中的值函数是一类拟变分不等式唯一的下半连续解的重要结论。

Viability Theory is applied to the optimal control problem for switching time varying systems in this dissertation for the first time. The statement about a characterization of the extended value functions as the unique lower semicontinuous solution to a Bensoussan-Lions type QVI is proved.

本文首次将生存理论这一数学工具应用到有限时间切换时变系统的最优控制问题中，得到了最优控制问题的值函数是一类拟变分不等式唯一的下半连续解的重要结论。

Some approximate controllability of semilinear control systems using fundamental assumptions on the systems components have been established.

为了分析这些控制工程中的复杂问题，人们使用越来越多的前沿数学技巧和方法，这便导致了非线性控制系统众多理论的发展。

To simplify and reduce the effort required for solving control equations, separation of time-space variables is invoked.

在此基础上，在整个时间空间上构造了迭代求解方法，将问题化为局部状态变量修正和全局控制变量求解问题；从而形成了有限变形问题过程最优控制计算方法的理论基础。

This paper consider centrifugal force and coriolis force for ideas of Planetary LabCD Valve Model and Single Point Fluid Separation Model, then the relation of critical rotation speed and planetary angle is linear which control parameter of critical rotation speeding in the Planetary LabCD Valve Model and compare with James Lee theory, and define γR in SPFS Valve Model to show the relation of the low rotation speed is linear and is fixed where the high rotation speed for utilizes any rotation speed.

本论文考虑离心力与科氏力之影响，且提出行星式碟片阀门模式与单点流体分离阀门模式两模式，其中行星式碟片阀门模式，其临界转速与行星角之大小近於线性变化，可当於控制阀门之临界转速之设计参数，且比较在阀门设计上考虑行星角来控制阀门临界转速与James Lee之阀门临界转速理论可以得知，从吾人所提出行星式碟片阀门模式可以得到与实验结果相同的趋势。

Through the trial regression to the ratio of unit injection well control area,unit well control area and injection-production well number ratio and shirr formula and unit injection well volume rate of change increasing with unit injection well control area decreasing,then Waterflooding reservoir macroscopica well spacing density formula c.

油藏工程理论及现场实践均表明，注水开发低渗油藏其注水方式和注采井数比对注水波及体积及水驱采收率有较大影响，通过对注水井水驱控制面积、单井控制面积与注采井数比进行了试探性回归分析，再结合谢尔卡乔夫公式，推导出了水驱采收率、驱油效率、井网指数、注采井数比与井网密度的关系式，从而建立了水驱油藏宏观井网密度公式。

The main body of a book is introduced specifically for upside down, simple pendulum system sigmatism has composed in reply a develop condition , blurred the mathematics controlling and rationale , the method that simple pendulum controls upside down has composed.

本文针对倒单摆系统的使用和发展情况、模糊控制的数学和理论基础、倒单摆控制的方法做了介绍。

Based on information theory,systems engineering and control engineering theory,the uncertain information distortion problem in a simple two-stage supply chain was studied for the purpose of improving the stability of supply chain system.

为提高供应链的稳定性，基于信息论、系统理论以及控制工程理论研究了供应链中的不确定性信息失真问题。

The approach proposed consists of two main stages: siphon control and the theory of regions.

该方法包括信标控制和区域法理论控制两个主要步骤。

This control method has many disadvantages. With the development of computer technology and digital image processing, it is possible to apply digital image processing to the control of Smoulder Furnace.

随着计算机技术的发展，数字图像处理技术理论的不断完善，寻求将数字图像处理的方法应用到烟化炉的终点判断上，实现烟化炉终点控制的自动化，对冶金行业来说是一个新的控制方法。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷