电偶极子

根据电偶极子假说，使用Frank导联系统，通过测量体表相互垂直的三个方向的平均电场，可以得到心电向量。

According to the hypothesis of electric dipole . electrocardial vector can be obtained with Frank lead system by measuring average electric field in three orthogonal directions on body surface .

本文以水平电偶极子源为发射源，研究了海洋CSEM在海上勘探施工方法和原理。

This paper use the horizontal electric dipole source for the emission , present the methods and principle of CSEM .

根据电偶极子的原理，建立模拟心电图。并由有效质量理论得到了GaN基量子阱能带结构和偶极跃迁矩阵元的计算方法。

By the effective mass theory , the dipole transition element is calculated .

而采用电偶极子作为发射和接收器的时候，则对应TM波的方程。

Equations with TM wave will function when the electric dipoles are applied as transmitters and receivers .

文中研究的3D地电介质时间域电磁场的有限差分计算方法，激发源为水平电偶极子，并且向地下供以交变电流。

Finite difference method for electromagnetic field in time domain of 3 D geoelectric medium researched in this paper puts excited source as a horizontal dipole and transmits the alternating current down the surface .

应用屏蔽氢模型计算类钠等电子系列电偶极子跃迁振子强度f和原子（离子）实极化系数α，计算结果和有关文献是一致的；

The screened hydrogenic model is employed to calculate the oscillator strengths f and core polarization coefficients α of dipole transition in the sodium isoelectronic sequence , the results are agreed with relevant documentation .

目的探讨脑电偶极子定位法（DLM）在癫痫外科中的临床意义及作用。

Objective To explore the clinical application and significance of EEG dipole localization method ( DLM ) in surgical treatment for intractable epilepsy .

对于垂直电偶极子，SIM将格林函数表示成复镜像与模拟镜像之和。

When dealing with the vertical electric dipole , the Green 's function is expressed analytically by the sum of two terms , i. e. finite number of classical images and simulated images by SIM .

用分离变量法、傅氏变换和留数定理求解Helmholtz方程，获得电偶极子激励的Green函数及其场。

The scalar Helmholtz equation in cylindrical coordinate is constructed , using the method of separating variable , and fourier transform , and residue theory , and the Green 's function and field of the transverse electric mode associated with the electric diple are also obtained .

本文提出了一种计算偏心电偶极子在均匀弱导电介质球表面所产生的电势的新方法，并应用所得公式对心电图机Wilson中心端的电势作了修正。

A new method computing the potential produced by an eccentric electrical dipole on the surface of a homogeneous dielectric sphere with poor conductivity was put forward . And then the resulting formula was applied to correct the potential of Wilson central terminal of an electrocardiograph .

故提出了一种修正的ESD火花电偶极子模型，并用此模型定性地分析了ESD火花产生的电磁场的特征，得出的一些结论对进一步研究ESD的电磁防护措施提供了有益指导。

In this paper , a modified dipole model of ESD spark is presented and the characteristic of electromagnetic fields generated by ESD spark is analyzed qualitatively using the model . Some conclusions are drawn and helpful to further study ESD electromagnetic protection measures .

因为PCB主要以辐射耦合为主，重点分析了电偶极子与磁偶极子的特性以及近远场的划分和特点。然后，针对开关电源印刷电路板的电磁兼容设计分两个方面进行分析。

Because main coupling of PCB is radiation-dominated , I focus on the characteristics of electro dipole and magnetic dipole and analyze the classification and characteristics of near-field to far-field . Second , switching power supply design of electromagnetic compatibility for printed circuit board is presented from two parts .

基于基准问题&电偶极子天线三维辐射电磁场，验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件，并应用于高频开关电源辐射电磁场的数值分析；

The validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna , and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies ;

电偶极子源在时域有限差分网格中设置的一种新方法

A New Setup Method of Electric Dipole Source in FDTD Grids

本文用电偶极子模型计算了锂原子基态能量。

The calculation of energy of Lithium atom in ground state ;

通过脑电偶极子进行视觉诱发响应的动态提取

Dynamic extraction of visual evoked potential by means of dipole localization

电偶极子与介质球系统的镜像电荷

The Mirror-image Charges of Electric Dipole and Medium Sphere System

水平电偶极子源的场分量等效电阻率

Effective resistivity defined by the electromagnetic fields induced by horizontal electric dipole

垂直电偶极子在3层媒质中激发的电磁场

Electromagnetic Field of a Vertical Electric Dipole in Three-Layered Media

离散复镜像理论对近地电偶极子的应用

Discrete complex image theory for electric dipoles above the ground

海水中时谐水平电偶极子的准近场定位

Quasi-near Field Localization of a Time-harmonic HED in Sea Water

把微管的构象简化为若干电偶极子的线性排列。

The microtubule is simplified as linear distribution of dipoles .

电偶极子辐射问题的教法研究

Research on teaching the Question of Radiation of Electric Dipole

有限导电平面上方电偶极子电磁场的解析公式

Analytical Expressions for Electromagnetic Fields of Electric Dipole over Finitely Conducting Plane

考虑分布式电源的智能电网备用市场交易模型脑神经电偶极子电势分布的数理模型及仿真

Reserve Market Direct Transaction Platform Model for Smart Grid Considering Distributed Generation

半导体微腔中电偶极子的自发发射

Spontaneous Emission of Electrical Dipoles in a Semiconductor Microcavity

电偶极子与模拟心电图测量

The electric dipole and the analogous measurement of electrocardiogram

并矢格林函数法求解海水中电偶极子电场

Electric field of a electric dipole in sea solved by dyadic green function

固体电介质中电偶极子热刺激电流与任意束缚能级分布谱

Thermally Stimulated Current in Solid Dielectric Having Arbitrary Dipole Activation Energy Density Distribution

球坐标下时谐电偶极子的二阶矢量位

The Second_order Vector Potential Due to an Arbitrary Current Dipole in Spherical Coordinates