Similarly, fault areas of single-phase ground circuit could be identified by detecting grounding points at the power source and variation of zero sequence admittance value acquired both at ovt cir first time and at the second time.

The optical voltage transformer ( OVT) based on Pockels effect of Bi4Ge3O12 crystal is developed. The structure of OVT and the principle of sensor are described in this paper.

开发了基于Bi4Ge3O12晶体的Pockels电光效应的光学电压互感器（OVT），阐述了OVT的结构设计、传感头的工作原理及其结构。

Currently, the egg allergic mechanism caused by OVT is still unclear, one of the reason is that we have no idea about the epitopes on OVT.

卵转铁蛋白导致过敏的机理目前尚不完全清楚，主要原因是缺乏对其致敏表位的认识。

Considering their characteristic and signal process of real high-voltage measurement, it proposes an improved structure of OVT.

针对这两种结构抗电场干扰的特点，兼顾实际高电压测量中的信号处理，提出了一种OVT传感头结构的改进措施。

This paper details these effects upon the two basic structures of OVT& transverse and longitudinal modulation.

该文详细分析了外电场对OVT的横向调制和纵向调制两种基本结构的影响。

The structure and features of OVT is introduced and the development direction of optical transformer is presented.

介绍OVT的结构和特性，并提出光电互感器今后发展的方向。

It was began with a brief introduction of different CAC schemes based on the occupancy of the system resource or signal quality, and then emphasis on the CAC schemes for controlling handoff failure probability ( Phf), including reserving resources, queuing and optimum CAC.

简要介绍基于小区资源占用情况和基于信号质量的两类进行呼叫接入控制的考察角度，并着重介绍预留资源、业务排队、最优化方法等控制切换掉线率的CAC算法及其优缺点分析。

The effect of plasma parathyroid hypertensive factor ( PHF) from 153 essential hypertensive subjects on pressor response in normotensive rats was evaluated and plasma levels of parathyroid hormone ( PTH) in these patients were measured.

探讨153例原发性高血压患者血浆中甲状旁腺高血压因子（PHF）对正常大鼠的升压作用，并测定了血浆中的甲状旁腺素（PTH）水平。

With the further study, it is found that Tau protein can result in neurodegeneration caused by aggregation of microtubule, the Tau protein aggregation caused PHF also can lead to neurodegeneration.

随着人们的深入研究发现Tau蛋白除了引起微管的解聚导致神经细胞的死亡以外，由Tau蛋白聚集形成的PHF也可以引起神经细胞的死亡。

The activities of PHF in plasma of31 EH patients and33 healthy controls were measured by bioassay.

采用生物活性测定方法，检测了31例EH患者和33例正常人血浆中PHF活性。

It shows that oxidation temperature and time have great effects on the degree of ring formation for PHF.

发现多孔中空氧化纤维的环化程度随氧化温度升高和氧化时间延长而提高。

The Pollution Haven Hypothesis ( PHH) states that as a result of increased regulation, multinationals shift their dirty production to countries with poor environmental standards.

污染避难所假说指出，由于各项法规的逐日增加，跨国企业将其污染型生产工厂转移到环境规制薄弱的国家。

In this respect, our research relates to the so-called Pollution Haven Hypothesis ( PHH).

就此而言，我们的研究主要和污染避难所假说有关。

Some studies present evidence in favor of the PHH.

一些研究所提供的证据支持赞同环境避难所假说。

The empirical evidence for the PHH is at best mixed.

环境避难所假说的实证充其量就是个混合体。

This dissertation is on the application of data mining prediction method in aviation PHM.

本文主要研究数据挖掘预测方法在航空PHM中的应用。

The typical wired and wireless data transmission systems used in PHM system are also discussed.

并对有线和无线两种数据传输技术的典型应用实例进行了讨论。

Research on Prognostic and Health Management ( PHM) Technology

预测与状态管理系统（PHM）技术研究

An Integration of PHM System based on data fusion

基于数据融合方法的故障预测系统集成

Conclusions there are effective to control PHN and to improve the life of quality with PCA.

结论：病人皮下自控镇痛能有效的控制带状疱疹后神经痛，改善病人的生活质量。

Conclusion The rats with PHN have decreased ability to clear free radicals.

结论PHN的大鼠机体清除氧自由基能力下降，肾组织发生脂质过氧化为其损伤的因素之一。