恒定电场

一种用于求解人体胸腔三维恒定电场有限元方程组的算法

An Algorithm to Solve the Finite Element Eguations for Thoracic 3-Dimentional Steady Electric Field Analysis

本文应用麦克斯韦方程推导电荷守恒定律，并研讨与电荷守恒定律有关的物理问题：恒定电场、基尔霍夫定律等。

This paper deduces the Law of conservation of charge by Maxwell equations , and discusses some physical problems which are in connection with the Law of conservation of charge : steady electric field , Kirchhoff law .

GPS短边检定场的建立对恒定电场场源的探讨

The Testing Field of GPS Short Side Was Set Up

在恒定电场中，带电粒子得到恒定的加速度。

In a constant electric field , a charged particle experiences constant acceleration .

人体胸腔三维恒定电场分布的有限元程序设计方法

The Finite Element Program Design Method for Sloving 3 D Thoracic Electrical Field Distribution

等参数六面体单元在求解胸腔三维恒定电场中的应用

The Use of Isoparametric Element of Arbitrary Hexahedron for Solving 3 D Thoracic Potential Distribution

恒定电场对氢键系统中质子传递影响的计算机模拟

Computer Simulation of the Proton Transferred in the Hydrogen Bond Systems under the Influence of Invariable Electric Field

利用能反映肌纤维内部结构的椭圆偏振参数研究恒定电场，脉冲电场对完整的青蛙横纹肌收缩的影响。

The effect of the static or pulsed electric field on the contraction of the frog intact muscle fibres is investigated .

介绍了用镜式检流计测量金属薄板电导率的四探针测量方法.这一方法是应用恒定电场理论；

This paper introduces the four-probe method of measuring the conductivity of metal thin board using mirror galvanometer as measuring tool .

当外加电场强度小于裂纹瞬时扩展临界电场强度，裂纹不发生瞬时扩展，但保持恒定电场，裂纹会发生滞后扩展。

When applied electric field was lower than E ip , the cracks could not propagate , but if keep sustained electric field , delayed propagation might occur .

将GaAs光电阴极发射层掺杂浓度由体内到发射表面从高到低的进行指数掺杂，能在发射层形成一个恒定的内建电场，有利于光电子的逸出。

Exponential-doping photocathodes , in which from the GaAs bulk to the surface the doping concentration is distributed exponentially from high to low , can form a stable built-in electric field in the active layer , and the electric field facilitates the excited photoelectron emission .

简要分析了在考虑重力作用的情形下，带电粒子在恒定磁场和振荡电场中的运动状态，求得了其运动方程，并就拉莫频率和振荡频率的关系进行了讨论。

The motion equation of the moving charged particle is obtained , and the relation between the Lamor frequency a and the oscillation frequency wis discussed as well .

推导晶堆的机电状态方程时，选用的是恒定电位移及恒定应力时的压电方程，最后设计计算时却又用的是恒定电场下的声速。

Electromechanical equation of piezoelectric crystal stack is derived from the piezoelectric equations of constant D and constant stress , but the acoustic speed of under the constant E is used in design in practical transducer design .