Upon the basic electromagnetic theory, wave propagation equation on an axis symmetrical case is derived. Numerical simulation method for solving the partial differential wave equation is presented.
从基本电磁理论出发，推导轴对称条件下电磁波的波动方程，给出求解此类波动方程的数值仿真方法。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
由于并联电抗器两侧的电流发生变化，传统的行波差动保护无法应用于带并联电抗器的输电线路。
According to coupled wave theory, and from the non-linear differential equation describing characteristics of reflection hologram, the reflective coefficient of reflection hologram is analyzed.
根据耦合波理论，从描述反射全息的非线性微分方程出发，对反射全息图的振幅反射系数进行了分析。
The research methods in this paper provide certain ways for obtaining the traveling wave accurate solutions of the coupling nonlinear differential equations.
文章的研究方法，为求解耦合的非线性微分方程组的行波精确解组探索了蹊径。
The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.
基本的方法是以双曲型偏微分方程组的简单波解为根据的。
A condition of a one-order quasilinear partial differential equation of a traffic model forming unique shock wave is given end proved.
本文讨论了一交通模型的一阶拟线性偏微分方程激波产生唯一性的条件并给了严格的证明。
Traditional traveling wave differential protection needs to transmit large amount of real-time high-frequency sampling data, which is difficult for current telecommunication methods.
但传统的行波差动保护要求实时传送所有高速采样数据，目前的通信手段难以胜任；
In the framework of the distorted wave approximation, we discuss the differential cross section and polarization of antiproton-nucleus inelastic scatterings at intermediate energies.
在扭曲波冲量近似下，讨论中能区反质子与原子核非弹性散射的微分截面和极化度。
Based on the analysis of the traveling wave with wavelet transform, this paper presents a new method of traveling wave differential protection based on the wavelet transform.
文中在对行波的小波分析的基础上，提出了基于小波变换的行波差动保护原理和算法。
The periodic wave solutions of the generalized CH equation are investigated by using bifurcation theory of differential equations and numerical simulations.
用微分方程分支理论和计算机数值模拟方法研究广义CH方程的周期波解。
Objective To analyze the electrocardiogram characteristics of patients with AF complicated with wide QRS wave and the underlying differential diagnosis methods.
目的分析探讨心房颤动（房颤）伴宽QRS波群的心电图特征及鉴别诊断。
Starting from the wave differential equation, a method is deduced to express the complex amplitude of light wave fields in the reference plane which is vertical to the optical axis.
在柱坐标下从微分波动方程出发，推导柱面光波的场分布，并利用远场近似条件导出当线光源与光轴成任意角度时，在垂直光轴方向的参考面上的复振幅表示。
The differential pressure signals of flow in a horizontal pipe are studied by wavelet analysis. The flow pattern can be recognized easily according to the characteristics of plug flow and wave flow.
采用小波变换分析水平管流上的压差信号，根据段塞流与波状流的小波分析特性，可容易地识别流型。
The effect of the differential strata in half-space on the damping is analyzed by theory of wave scattering, and the practical calculation method is presented.
并由波的散射原理，分析了土层差异对半空间阻尼的影响效应，提出了工程实用计算方法。
The large-amplitude rolling random differential equation has been founded of floating structure subjected to wind-wave and explosive loading.
建立了大型浮体结构考虑风浪和爆炸载荷作用的大幅横摇运动随机微分方程；
Two methods of variable polarization are discussed, and some formulae for wave-mode differential phase, nonreciprocal phase and variable polarization coefficient are deduced.
讨论了两种实现变极化的方法，推导了求解波型差相移、非互易差相移和变极化系数的精确公式。
This paper performs one-way wave decomposition for 3d wave equation, and 2 kinds of high approximation of up-going wave equation in low order differential equation system are derived.
对三维波动方程做单程波分解，给出了用低阶偏微分方程组逼近上行波方程的2种高阶近似表达式。
Using the definition and character of vector function, the field is separated to TM wave and TE wave relative tor without complex vector-differential operation.
利用球矢量波函数的定义及性质，提取出场的径向分量，将初级场分解为相对于径向的TE波和TM波，避免了复杂的矢量微分运算。
For a UWB communication system, by using differential characteristic of Herz magnetic dipole antenna, the narrow pulse can be produced from the rise edge of input square-wave signal.
在UWB通信中，利用赫兹磁偶极子天线的微分特性，由输入方波的上升沿产生窄脉冲。
The numerical solution of wave propagation may be obtained by solving for the differential equation of medium motion.
通过求解介质运动做分方程，获得了波的传播问题数值解。
In contrast, the basic half-wave dipole - the basis for many antenna designs - is a differential component.
与此相反，基本半波偶极子-的基础许多天线设计-是一个差分分量。
This paper presents a nonlinear hydroelastic differential analysis method of wave-induced vertical motions and structural responses of ships.
本文给出了一个预报波浪诱导的船舶垂向运动和结构总体动响应的非线性时域水弹性力学微分分析法。
The differential equation with varied coefficient of the SH-wave in the functionally graded materials is established.
建立了功能梯度材料中SH波的变系数微分方程。
After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.
通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。
Based on the wave theory, a set of differential equations of nonlinear motion due to the seismic sh wave is established.
按波动理论，建立土—结构—流体相互作用体系的非线性运动方程组。
Differential optical absorption spectroscopy (DOAS) makes use of the flue gas pollutant different optical absorption characteristic at the UV-VIS wave band to measure their average concentration.
差分吸收光谱法是利用气体污染物在UV - VIS波段对光有不同的吸收特性来测量其平均浓度。
The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.
复杂介质中地震波的传播多是通过求取单程或双程波动方程的数值解进行模拟的。
It is pointed out that the WKB method can be applied to a wider kind of partial differential equations. The method is applied to linearized shallow water wave equations.
本文首先指出WK B方法可适用于更广泛的一类方程，并把它应用于线性化浅水波方程。
The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.
采用时间增益补偿技术，补偿超声波在空气中的衰减，减少回波信号的起伏；由有源全波整流电路和微分电路等组成峰值时间检测电路，可正确检测回波的峰值到达时间。
The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.
采用时间增益补偿技术，补偿超声波在空气中的衰减，减少回波信号的起伏；由有源全波整流电路和微分电路等组成峰值时间检测电路，可正确检测回波的峰值到达时间。
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