这就是我们现在所说的连续性方程，推导波动方程的必要条件之一。
This is what we now call the equation of continuity, one of the relationships necessary for the derivation of the wave equation.
并使用连续性方程，在考虑表面复合过程的情况下，提出了短二极管的少子寿命计算公式。
This paper calculates the expression between minority-carrier lifetime and switching time in short diode by analyzing the continuity equation when considering the surface recombination.
目的研究一类具有连续偏差变元的双曲偏泛函微分方程边值问题解的振动性。
Aim To study a class of boundary value problem of hyperbolic partial functional differential equations with continuous deviating arguments.
利用少数载流子的稳态连续性方程和半导体材料对光的吸收，求出光电流的表达式。
We utilize the minority carrier equilibrium continuity equations and semiconductor material absorption of photo to get the expression of current induced by photo.
牛顿第二定律实质上是动量连续性方程的积分形式，因而，力可以被理解为动量流。
Forces can be visualized as momentum currents, for Newton's Second Law is equivalent to the continuity equation for momentum in integral form.
利用横向谐振法结合奇异积分方程技术，导出了具有快速收敛特性的不连续性等效电路参量计算公式。
A formulation for the equivalent circuit parameters of the discontinuities with superior convergency is derived by the transverse resonance method with the singular integral equation technique.
该理论以电荷守恒原理代替电流连续性原理，建立了电荷累积模型的微分方程。
By substituting the principle of current continuity with charge conservation, the differential equation of charge accumulation model is built.
为了突出主干和分支网络的特殊性，提出了节理单元模型并专门推导了节理单元的连续性方程。
A joint element is presented to represent the trunk and branch networks and used to derive the continuity equation for these two network systems.
为了处理超临界流和有冲波情况，我们在方程中引入人工粘性项，以消除解中可能出现的不连续性。
An artificial viscous term is introduced in the equation to treat the supercritical flow with embeded shock waves and to eliminate the discontinuous solution.
采用了体积守恒形式的连续性方程，以防止由于气液两相密度差大而引起的数值求解中的不收敛现象。
The continuum equation with conserved volume type was used to avoid divergence because of the big difference in density between gas and liquid.
本文提出了一种将一维S-G格式应用于三维电流连续性方程的方法。
This paper presents a generalization of one-dimensional S-G formulation for three-dimensional current continuity equation.
该模型是在福克扩散定律和连续性方程的基础上建立的。
The model is constructed using Fick's dispersion law and the continuity equation.
利用锥理论和非对称迭代方法，讨论了不具有连续性和紧性条件的增算子方程解的存在唯一性。
By using the cone theory and non-symmetry iteration method, it is studied the existence and uniqueness of solutions of increasing operator equations without continuity and compactness conditions.
研究具有连续变量的中立型差分方程，建立非线性差分方程与其对应线性差分方程振动性间的关系。
Establishes the relationship between the oscillation of neutral difference equations with continuous variable and that of its associated linear limiting equations.
以组分的连续性方程为基础，建立了药物从多孔骨架聚合物系统中释放的数学模型。
A mathematical model describing the drug release from porous polymer was established by using the species continuity equation.
建立了考虑列车管泄漏的连续性方程，给出一种求解压力速度耦合方程的显式有限差分算法。
We have established the continuity equations under train pipe leakage condition and presented an explicit finite difference method to solve the pressure-velocity coupling equations.
利用边界条件、区间位移连续性条件和弯矩剪力平衡条件建立了反分析的特征方程序。
The characteristic equations are established by using the boundary conditions, continuous conditions of the displacements and equilibrium conditions of the shearing force and moment in each region.
设计一种新型半管均速管，并根据伯努利方程、连续性方程建立均速管仪表系数的数学模型。
A new half-tube averaging pitot tube is designed, and based on the Bernolli equation and continuity equation, a mathematics model is established.
应用物理学中的质量守恒定律、牛顿第二定律、动量定律等，建立了交通流的连续性方程、欧拉方程和动量方程；
Conservation of mass, second Newton's law, and momentum law are introduced into traffic flow to set up traffic continuity equation, Euler's equation, and momentum integral equation.
连续性方程和运动微分方程构成了交通流的动力学模型。
Continuum equation and momentum differential equation compose the traffic dynamics model.
由流动的连续性引进了流函数，使流体动力学基本方程的未知量的个数减少一个；
Because of the continuity of the flow, the stream function is introduced and it makes that the numbers of the fluid dynamical basic equation is cut off one.
采用罚有限元法将连续性方程引入到动量方程，获得了速度场分布。
The velocity field was established by introducing the continuity equation into momentum equation.
提出从连续性方程本质出发确定压力修正方程边界条件的新方法。
The paper presents a new method, based on the essence of continuity equation, to specify the BCs for pressure correction equation.
根据非线性缺陷连续统的4维几何理论，导出了位错和旋错的连续性方程。
On the basis of the 4-dimensional geometric theory of the nonlinear defect continuum, the continuity equations of dislocations and disclinations are derived.
一次一个来源条件对连续性方程的扩展由于盐海水的蒸发比率将帮助理解飓风。
An extension of the continuity equation by a source term due to evaporation rates of salt seawater will help to understand hurricanes.
研究一类具有连续分布滞量的偶数阶非线性中立型泛函微分方程解的振动性，得到了该类方程的若干新的振动准则。
We study the oscillation of solutions for a class of even order nonlinear neutral functional differential equations with continuous distributed delay.
基于此图像，我们给出了自旋流满足的协变形式连续性方程的经典对应。
Based on this picture, we derive the classical analogy of the covariant continuity equation which the spin current obeys.
基于此图像，我们给出了自旋流满足的协变形式连续性方程的经典对应。
Based on this picture, we derive the classical analogy of the covariant continuity equation which the spin current obeys.
应用推荐