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According to the robust control H2 optimal performance specification, the practically desired diagonal elements of the system transfer matrix are suggested, and in view of the coupling action existing between the two closed loops, dynamic detuning factors are introduced to design the optimal double-loop controllers, and their executable PI/PID forms are derived using a mathematical rational approximation approach.

根据鲁棒控制H2最优性能指标，提出实际期望实现的系统传函矩阵中的对角元。考虑到两个闭环之间的耦合作用，引入动态解调因子设计最优双回路控制器，采用数学有理逼近的方法得到其实际可执行的PI/PID形式。

An adaptive PI controller based on reduced-order model of closed-loop system is proposed for pH neutralization process.

针对pH中和过程，提出了基于闭环系统降阶模型的自适应PI控制器。

In this article, we will review the role of PI-3K in the pathogenesis of nonalcoholic fatty liver disease.

本文就PI-3K在非酒精性脂肪性肝病中的作用机制研究现状作一综述。

GISH analysis showed Triticale have 2 items chromosomes presented yellow and others chromosomes presented chrysoidine, because yellow chromosomes combined the Thinopyrum intermedium DNA, others chromosomes dye by PI. 4. Analysis of resistance gene: CH-9916 is the hybrid progenies of Octoploid tritielytrigia TAI-7045 X common wheat "Jinmai33".

GISH分析结果表明，小偃麦衍生系CH-9916的42条染色体中有2条外源染色体因结合有探针DNA而呈现出较强的黄色杂交信号，而没有结合上探针DNA的普通小麦染色体经过PI染色呈现出桔红色，初步推断小偃麦衍生系CH-9916为一个"小麦一中间偃麦草"的代换系。

Then we point out the defects in the original definition of PI reasoning, and give the revised one.

最后对PI归结的完备性定理证明所需要的引理给出了两种简化证明。

In order to control the temperature of the laser-diode ,a semiconductor cooler ——— PELTIER is applied and the technique of fuzzy and PI control method are adopted either.

利用半导体致冷器对大功率激光二极管进行致冷和精密温控，采用模糊控制与PI 控制相结合的方法，构造了激光二极管的全固态致冷系统。

What functional groups must be present to confer this pI on pepsin?

必须存在什么样的官能团才能造成胃蛋白酶这样的pI？

Methods: Human leukemia cell line K562 was treated with different concentrations of WM. The proliferation of K562 cells was examined by MTT assay. DNA damage in K562 cells was examined by single cell gel electrophoresis assay, and apoptosis of K562 cells was detected by Annexin V-FITC/PI double staining. The expressions of total Akt, phosphorate Akt, and NF-κB p65 mRNA and protein were detected by RT-PCR and Western blotting, respectively.

以不同浓度的渥曼青霉素作用于人类髓细胞白血病细胞K562，采用MTT法检测细胞增殖活性，单细胞凝胶电泳技术检测细胞DNA损伤形成的"彗星"样拖尾现象，Annexin V FITC/PI双标法检测细胞凋亡，Western blotting、RT-PCR检测渥曼青霉素作用K562细胞后总Akt和磷酸化Akt以及NF-κB基因及蛋白表达水平的变化。

The photosensitivity of PI-CI was studied by using UV-Vis and FTIR.

用紫外-可见光谱等方法研究了PI-CI的光交联反应。

I'll meet you in pi.

我在PI等你

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。