查询词典 pi

Comfortable in a pi馻 barong, Joshua was shocked when he was told that the national costume was made from pi馻 fruit and went on to smell and taste the fabric much to the delight of the crowd watching him.

当被告知我们的民族服装是用pi馻水果做成时，他非常吃惊，上前闻了味道，并品尝，引起围观人的阵阵笑声。

The second part of this thesis is to study the relationship between PI film structural and birefringence property.

本论文的第二部分在研究PI分子结构与其双折性的相互关连性，我们合成7种不同结构之PI并将其薄膜以单轴拉伸之方式作延伸实验后，量测其In-Plane的双折射性。

The Immunohistochemical results indicated that the pI〓 is obviously located on the liminal surface membrane of the distal tubules and Henle's ascending limbs, and can also be found at Henle's loop of porcine kidneys, these segments expose in non-isotonic condition.

免疫组织化学染色显示，pI〓在猪肾脏明显定位于非等渗区域的远曲小管和髓袢升支粗段的管腔表面膜及髓袢处，而等渗区域的近曲小管细胞几乎无pI〓的存在，据此认为pI〓可能在耐受渗透压的变化上发挥作用。

In our previous studies, it was that invertase secretion in Saccharomyces cerevisiae and Schizosaccharomyces pombe is mediated by PI contents in their membrane by the PI-type signaling pathway and the Snfl-Migl mode.

我们前期研究结果表明细胞膜中PI的含量对酒精酵母的蔗糖酶分泌存在调控作用，而这种调控作用是通过PI的信号传导途径介导Snf1-Mig1这一模式而实现的。

The method is based on a variable structure to control the SVC, wherein, the variable structure control method comprises two aspects of the unbalanced load equalization compensation and the parameter control of a PI controller, wherein, the unbalanced load equalization compensation adopts the SVC compensation susceptance computational method which is based on the synchronous rotation reference coordinate transformation of a virtual symmetrical three-phase system; meanwhile, in the stabilization control of the system voltage, the ant colony algorithm optimization method is adopted to real time adjust and to optimize the parameter kp and ki of the PI controller.

本发明公开了一种静止无功补偿器的不平衡补偿和蚁群优化方法，基于变结构对静止无功补偿器SVC进行控制，其中变结构控制方法包括不平衡负荷平衡化补偿和PI控制器的参数控制两个方面，其中不平衡负荷平衡化补偿采用基于虚拟对称三相系统的同步旋转参考坐标变换的SVC补偿电纳计算方法；同时在系统电压稳定控制时，采用蚁群算法优化方法，对PI控制器的参数kp、ki进行实时调整、寻优。

PI-1 and PI-2 polyimide films were prepared from 3,3′,4,4′-benzophenone tetracarboxylic dianhydride and ODA确良by two-step polymerization under the thermal and mixed imidization procedures.

采用两步法首先合成聚酰胺酸，然后经热酰亚胺化和混合酰亚胺化工艺制备了BTDA/ODA型的PI-1 和PI-2两种聚酰亚胺薄膜。

The simulation of MATLAB proves the correctness of model. The results of the application show the superiority of adopting Fuzzy- PI- Controller over conventional Pi-Controller in the aspects of reducing excess adjustment, abbreviating adjusting time and having good adaptability.

MATLAB模拟仿真和实测数据表明了该实际控制模型的正确性，应用结果表明在参数变化的情况下，模糊-PI控制在解决系统减少超调、缩短调节时间和良好适应性问题优于常规PI控制，在实际控制中达到良好的控制效果。

Based on nonliner dynamic simulation model of BLDCM.simulation model of speed and double close loops of current are built in adjusting speed system for BLDCM.Through simulation the performance of BLDCM is researched,in the way PI adjustors of speed and current adopted,fuzzy control used in speed loop and PI adjustor used in current loop,which prepares theory base for controller design of high quality BLDCM.

在直流无刷电机非线性动态仿真模型基础上建立了转速、电流双闭环直流无刷电机调速系统仿真模型，对转速、电流环均采用PI调节器及转速环采用模糊控制器、电流环采用PI调节器的直流无刷电机性能分别进行了仿真研究，为高性能直流无刷电机控制器设计提供了理论依据。

The sample is the data of 100 Index of Shenzhen stock market from the 2nd of January to June 30,and the thesis has made comparative analysis about the different behavior under different market situation of the three kinds of tactics-- the CPPI tactics, CM tactics and TIPI tactics, in the hope of examining the validity of these kinds of dynamic PI tactics in the market of China, and examining whether these kinds of dynamic PI tactics are there different performances under different market situation.

论文以中国2004年上半年(1月2日至6月30日)深证100指数的数据作为样本比较分析了CPPI策略、CM策略和TIPI策略这三种策略在不同的市场状况下的不同表现，以期检验这几种动态PI策略在中国市场的有效性，以及检验这几种动态PI策略是否在不同市场状况下会有不同的绩效。

Kinetics of hydroxyl-terminated polybutadiene/ phenyl isocyanate, bonding agent (BA-5)/PI and antioxidant H/PI were studied in toluene/dimethyl sulphoxide solution. The rate constants and the activation parameters were calculated. The results show that the reactionary rate of these three active hydrogen components decreased in same condition.

分别对端羟基聚丁二烯/苯异氰酸酯，键合剂(BA-5)/PI和防老剂H（N，N'-二苯基对苯二胺）／PI在甲苯／二甲基亚砜混合溶液体系中进行了反应动力学研究，计算了相应体系的反应速率和活化能。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。