偶极子

ST depression in transmural ischaemia was generated with ST elevation and was an integral part of the current source.

利用心肌的双域模型计算机模拟了不同区域心肌透壁缺血时ST 段位移在心脏表面的分布，发现心脏表面ST 段位移的分布式样和缺血区域大小有关，一个小面积的透壁缺血在缺血区上出现均匀分布的ST 段上升，而在心脏表面的其他部位上几乎没有出现ST 段下降；一个大面积的缺血像左降支或左旋支区域的缺血， ST 段位移在心脏表面的左侧区出现了一个偶极子式的分布，在缺血区为ST 段上升，在正常区为ST 段下降，并且其幅度随远离缺血边界而减小；同时发现透壁缺血时的ST 段下降是缺血电流源的不可分割的一部分。

Then echo from moving chaffs which carrier frequency is different with that of incident wave by Doppler shift are gotten.

然后用矩量法考虑云团中的互耦效应，用其计算结果对不同偶极子的回波幅度进行加权，得到了计及箔条运动的时域回波。

It indicates that carbon fiber preforms can be heated by microwave in (2450±50)MHz frequency.

结果表明：在(2450±50)MHz的微波波段，炭纤维预制体能吸收微波而加热，其损耗机制主要为偶极子极化、界面极化及电导损耗。

We discover that the period to form the plug zone is greatly shortened and the velocity peak-value of the "respiring" transition increases markedly, compared with the simulation results using dipole model.

研究结果表明在外电场作用下，流动流体形成柱塞区的时间比由偶极子模型所得结果大为缩短，呼吸式跃迁峰值也有很大提高。

Based on multi-conductor transmission lines and dipole method, a numerical method to predict the transient electromagnetic environments due to the operation of switches in air-insulated substation is proposed. After a model of busbars in a 500kV substation is set up, the transient electromagnetic field is predicted.

4提出了将多导体传输线时域有限差分法和电偶极子法相结合的空气绝缘变电站瞬态电磁环境数值预测方法，并对一座500kV变电站开关操作产生的瞬态电磁环境进行了预测计算，获得了可用于指导二次设备下放后其电磁屏蔽设计的关键数据。

deviation of the antenna radiation resistance seems larger in some textbooks about the electromagnetic theory for the editors have made some similar treatment when discussing the radiation power of short antenna.combining the concept of physical with mathematical tools and the precise results are gained,that is the real radiation resistance of electric dipole antenna is about ten times smaller than that of the approximate results in the actual literature by researching the electromagnetic field theory and average energy density.this offers evidence to grasp the radiated ability accurately.

小 摘要：在部分有关电磁场理论的教材中，编者讨论短天线的辐射功率时，由于作了某些近似处理而所得天线的辐射电阻值偏差较大。从天线辐射的电磁场理论和平均能流密度出发，使物理概念和数学工具相结合，运用矢量运算推导出精确的结果，即电偶极子天线的实际辐射电阻要比文献中的近似结果小数十倍，因而为准确把握天线的辐射能力提供了依据。

The tests of parasitic conduction current and TSC to polyimide used in inverter-fed motor have been done.

通过TSC曲线可以比较方便地研究介质材料中偶极子和可动离子的性质，准确地测量介质材料的活化能ΔE、以及弛豫时间τ等微观参数，近年来得到了人们广泛的重视[5-7]。

Analysing the information strcture of the cross diploes, a DOA and polarization estimation method is presented for broadband signals.

研究了正交偶极子阵列的信息构成，提出基于该阵列的宽频段信号DOA与极化联合估计算法。

They emerge from special arrangements of dipoles and are completely different from the constituents of the material.

就是说这种突然浮现的状态是来自于偶极子本身的一种特殊的安排。

Dipoles in the material are then polarized according to this magnetic field.

材料中的每个偶极子就在这个磁场中被极化。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。