查询词典 pi

The mathematical model of the medium frequency inverter is founded and the control theory and structure of the repetitive control system are described.

该方案利用重复控制来提高系统的稳态性能和谐波抑制能力，而PI控制则用于改善系统的动态特性。

Specialized construction has been rapid development of village and group, seed, edible melon, black seeds, grapes,fen pi products such as hand-renowned both inside and outside the county.

专业化村组建设得到较快发展，制种、食用瓜、黑瓜籽、葡萄、手工粉皮等产品享誉县内外。

In his 16th year, Pi sets sail with his family and some of their menagerie to start a new life in Canada.

在他16年丕启航同他的家人和他们的一些动物园，开始了新生活，在加拿大。

Questo è il risultato dello studio del professor Bruce Donald della Duke University, nanobot (cioè minuscoli robot) che si muovono comandati da un'estrema precisione, e che grazie al campo elettrico col quale vengono mossi possono fare più di 20mila ...

这是由于研究教授布鲁斯唐纳德杜克大学， nanobot ，这一举动推动了极端的准确性，并与电场它们搬到可以做多20mila 。。。

This approach performs well when multicollinearity of variables exists and has the virtues of fast calculating speed and strong real-time performance.

并以温州电厂两台135MW机组的PI实时数据库中的数据作为样本数据，采用偏最小二乘法建立仿真模型对传感器测点测量数据进行故障检测及诊断。

In the method of the invention, a baseband signal is pre-processed to realize nonlinearity compensation. The pre-processing method comprises the following steps: the filter coefficient and the multinomial coefficient of the high power amplifier are extracted; corresponding gain is calculated for the amplitude value of each point input into the sequence of the baseband signal, and the phase compensation value is calculated according to the amplitude gain; the phase compensation value and the gain which are corresponding to each point are synthesized into re-gain, a pre-processing value pi is obtained, and pre-processing output sequence is formed; the pre-processing output sequence is output into the high power amplifier directly or through a inverse filter.

本发明方法是将基带信号进行预处理来实现抵偿非线性，预处理方法是：提取出高功率放大器的滤波器系数和多项式系数；对输入基带信号序列中的每一点的幅值计算对应的增益，根据幅度增益计算出相位补偿值；每一个点对应的相位补偿值与增益合成复增益，得到预处理值p i ，构成了预处理输出序列；将预处理输出序列直接或经过反向滤波器后输出到高功率放大器中。

Some serum samples from ducks immunized with attenuated DPV were assayed with the ELISA kit, and the antibodies were detected first on day 6 or day 9 post-immunization in ducks vaccinated subcutaneously, orally or nasally, and still detectable on day 60 PI.

应用该试剂盒对皮下注射、口服和滴鼻免疫DPV弱毒的20日龄樱桃谷鸭血液中抗DPV特异性IgG抗体效价进行了测定，皮下免疫鸭于第6d，口服和滴鼻免疫鸭于第9d可在血清中检测到DPV特异性抗体，且至第60d时依然可检测到高效价抗体。

Nondiabetic patients with CHD have hyperinsulinemia and insulin resistance and there is an independent association between proinsulin and dyslipidemia.

CHD患者有高胰岛素血症和胰岛素抵抗状态，TI、PI分别与血糖、血脂等CHD危险因子呈群聚关系。

Suppose the fluctuation of security market could be anticipated, the CPPI tactics has the best performance in the bull market, the TIPI and CM tactics is noneffective; but in the bear market, the CPPI and TIPI tactics is effective, the CM tactics is noneffective.

假设股市波动是可预期的，在股市处于单调多头市场里时，CPPI策略是有效的最佳动态PI策略，CM策略，TIPI策略是无效的；而在单调空头市场里CPPI策略与TIPI策略是有效的，CM策略是无效的。3。

But it is difficult to get satisfied control characteristics by using normal linear proporition integral controller due to the high nonlinearity between speed and current or torque.

但它的转矩和转速之间具有强烈的非线性关系，采用常规线性PI控制器难以得到令人满意的控制特性。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。