控制理论

According to the engineering practice, the theoretical basis and method that survey directly the horizontal distance and height difference by the total station system as fourth grade and below fourth grade control network are put forward instead of surveying slant distance and zenith distance.

摘要根据工程实践，提出了用全站仪直接测量平距、高差来代替测斜距、天顶距作四等及四等以下控制网测量的理论依据和方法，并以张河湾抽水蓄能电站施工控制网为例进行了比较计算。

This res ult provides the theoretical basis for the system of zero order release as well as how to control the release rate and the amount of drug release.

根据该模型还从理论上分析了两种限定条件下药物的释放特征：当DmDf时，释放速率变为常数，达到零级释放，其释放速率与药膜无关，这为零级释放缓释体系如何控制释放速率和药物释放量提供了理论依据：当Dm Df时，药物的释放速率与药膜中的释放系数、溶解度和药物的装填量有关，与包膜过程无关，其释放过程类似于混合药膜缓释体系。

By theory analysis and using zero voltage vector,a PMSM DTC control system model has been established in Matlab,and the simulation study shows that zero voltage vector can effectively diminish the torque ripple and improve the system performance.

在理论分析的基础上采用零矢量的控制方案，建立了基于Matlab/Simulink的PMSM直接转矩控制伺服系统模型。仿真结果验证了加入零电压矢量可以有效地抑制转矩脉动，提高系统性能。

So, Putting the three financial variables together, analyze their dynamic behavior、research adjustive mechanism of economic growth and mechanism of financial risk control is helpful for perfecting financial market、improving the level of monetary policy. This paper consists of several parts.

因此，将货币供应量、汇率和利率三者放到一起，分析它们的动态行为，探讨在这个框架下的经济增长调节机制和金融风险控制机制———金融变量对经济增长的调节与控制，对完善我国金融市场、提高货币政策调控水平具有重要的理论和实践意义。

The design theory and method is established for hybrid control system of aseismatic structure based on neural network.

建立基于神经元网络的抗震结构混合控制的理论和方法：进行基于神经元网络技术的消能减震器的优化设置研究，分析其有效控制的振型数量。

Simulation systems of generalized hybrid control of aseismatic structure based on MATLAB language are established.

建立了抗震结构智能混合控制的方案选择模糊专家系统的基本理论；并建立了基于MATLAB语言的抗震结构广义混合控制的仿真系统。

For the FCCU with a high efficient regenerator, the expressions of catalyst circulating rate in the spent catalyst pipe, the regenerated catalyst pipe and the pipe from the second stage of the regenerator to the first one were obtained on the basis of the pressure balan...

在此基础上，建立了催化剂藏量系统的动态模型及其简化的线性模型。由线性模型和控制系统稳定性理论证明，不作任何控制时催化剂藏量的稳定性是有条件的。给出了该系统的催化剂藏量稳定性判据，并用反应再生系统仿真实验验证了这一判据

At present, more popular artificial software of control system is MATLAB. MATLAB environment which Dr. Cleve Moler of U.S.A. developed of 1980 assist designing technique to play an enormous role to theory and computer of the control system.

目前，比较流行的控制系统仿真软件是MATLAB.1980年美国的Cleve Moler 博士研制的MATLAB环境对控制系统的理论及计算机辅助设计技术起到了巨大的推动作用。

The requirement of control systemspecification constantly and diversly changes which results in the increasingcomplexity of programming and debugging, so a valid and reliable niethodology ofsoftware designing and debugging is expected urgently.

控制系统需求的多变更增加程序设计的难度，因此急需一套有效可靠控制系统软件设计和调试理论。

FBG sensing technology and its recent progress in applications isintroduced systematically;the coupled-mode theory and the sensing principleof FBG are expatiated and the Bragg formula and reflectivity formula arededuced;the work principle, variety and essential characteristic of PZT areexpatiated in detail, and the configuration of PZT parts of an apparatus issummarized. The mechanism of piezoelectric electrostriction is analyzeddeeply, and the normalized control model is introduced aiming at analyzinghysteresis characteristic, and an electrical polarization intensity control methodbased on the aforementioned model which can effectively reduce the hysteresischaracteristic is discussed.

论文系统地介绍了光纤光栅传感技术及其应用的研究进展状况；详细地阐述了光纤光栅的耦合模理论及光纤布喇格光栅的传感机理；推导出了光纤布喇格光栅的布喇格公式和反射率公式；详细地阐述了压电陶瓷的工作原理、种类和基本特性，总结了压电陶瓷器件的结构形式，深入地分析研究了压电陶瓷逆压电效应及电致伸缩机理，并针对其迟滞特性给出了压电陶瓷归一化控制模型，在此模型基础上采用电极化强度控制方法有效地降低了压电陶瓷的迟滞特性。

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