查询词典 Pi

A new current controller is used in this thesis. Feedback stator current information and tunning the PI control parameters are not required in the new current controller.

在本论文中采用一种新型的电流控制器，它不但不需用到回授的定子电流，又可以免去调整PI电流控制器参数的困扰。

The results show that the fuzzy PI controller and the control strategy suppress the vehicle oversteering or understeering by the effective control of the brake force and the vehicle control stability is improved significantly.

结果表明：所设计的模糊PI控制器及控制策略可以通过制动力控制有效地抑制汽车的过多转向或不足转向趋势，提高汽车的操纵稳定性。

Effect of modified Xiaoyao powder on electrogastrographic picture and pharmacokinetic characteristics of ferulic acid in patients with functional dyspepsia of Gan-qi stagnation with Pi-deficiency syndrome type.

由于是大复方，其中所含化学成分可达几百种，但进入人体的成分才可能是药效成分，所以研究服药后进入人体的成分才能更好地了解加味逍遥散的药理作用。

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3，4-二甲苯胺及4-氟硝基苯为原料，经一步骤缩合反应得到产率为84 %之4，4'-二硝基-3&，4&-二甲基三苯胺(1)，由(1)经自氧化法后再以氢化法还原硝基，成功地制备出带有二胺基与一羧基的三官能基之AB2型三苯胺中间体(AB2型PI中间体)，自氧化反应与氢化法的产率各为81%及90%。

Artist Bill Carman says, Mother was a Korean smuggler, father a secret government guy, my wife is a PI, I always feel like I'm being followed

艺术家Bill Carman说：&母亲是朝鲜半岛偷渡客，父亲秘密为政府工作，我妻子是私家调查员，而我总感觉自己被跟踪了。&

Water level and flow cascade pi feedback control method is to deal with unpredictable disturbance.

采用流量控制器降低下游方向渠池间的耦合影响。

In accordance with the working characteristics and control requirements of the ball mill in cement plants, a self-optimizing PI control algorithm is introduced and implemented in this paper.

针对水泥厂球磨机的工作特性和控制要求，本文提出并实现了&自寻优-PI控制&的控制方法。

In this paper,a control strategy combining the fuzzy control method and conventional PID improved algorithm is introduced,and a Fuzzy-PI controller for cement mill is designed,at the same time electric energy is saved.

本文提出了将模糊控制方法和传统PID改进算法相结合的控制策略，并且设计了一种水泥厂磨机Fuzzy-PI智能节能控制器。

The PI controlling system with the ability of intelligent logic judging method, can decide to choose perfect controlling operations, according to the height of coal in the ball mill, entrance pressure and the exit temperature error, which can avoid to operate wrongly because of the inter-inference of different control.

带有智能逻辑判断功能的PID控制系统，采用智能逻辑判断方法，根据磨煤机入口负压及出口温度所处的偏差区域，确定应该采用的控制操作，可以有效地避免由于各控制过程之间的相互干扰而导致总体控制效果严重恶化甚至整个控制系统无法正常投入等问题。

Fuzzy control is applied to variable-frequency regulating speed of AC induction motor in this thesis, where one kind of fuzzy controller of speed is designed with Mamdani model. Then the slip frequency control system made up of fuzzy controller is simulated, the simulation results show that its performance is better than that of general PI controller.

论文将模糊控制技术应用于感应电机的变频调速，采用Mamdani模糊逻辑模型，设计了一种转速模糊控制器，并对基于模糊控制的感应电机转差频率控制系统进行了数字仿真，结果表明模糊控制的控制性能优于常规的PI调节器。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了