plane wave

The first term of this transition matrix element is a divergent pluralism when the incident and scattered waves are chosen as plane wave.

跃迁矩阵元被表示为两项，当入射电子和散射电子近似为平面波时，跃迁矩阵元的第一项是一个发散的复数；

互联网摘选

With dielectric constant distribution function of Fourier coefficients as a foundation, we calculated the arbitrary shape two-dimensional photonic crystals' bandgap structures by PWM ( Plane Wave Expansion Method).

有了介电常数分布函数的傅立叶展开系数做基础，用平面波展开法计算了任意形状二维介质光子晶体的带隙结构，求解带结构的主要方法是通过计算本征方程的特征根。

互联网摘选

The Propagation of Electromagnetic Waves in Tube by Plane Wave Spectrum

平面波谱法分析电磁波在管道中的传播

互联网摘选

Starting with an electromagnetic wave equation, its inhomogeneous plane wave solution and the extension of the Snell ′ s laws in the situation are dealt with.

从电磁波方程出发，讨论了它的非均匀平面波解及此情形下Snell定律的推广。

互联网摘选

When the similar plane wave propagation mode is used to measure, the variation of wall thickness in certain range have small influence to measurement results.

利用准平面波模式进行测量时，壁厚在一定范围内对测量结果影响并不很大。

互联网摘选

Design and Application on temperature controlling system of 320 × 256 element short wave infrared focal plane array

320×256短波红外焦平面温控系统设计与应用

互联网摘选

Probing the medium with a time harmonic homogeneous plane wave gives the Christoffel equation. Then the complex velocities for homogeneous viscoelastic waves are calculated from it, while the attenuation factor and phase velocity and quality factor are obtained from the complex velocity.

使用均匀平面简谐波分析方法研究其频散关系，得到Christoffel方程，进而获得均匀平面波的复速度、相速度、衰减系数和品质因子的表达式。

互联网摘选

The paper constructed a time depth conversion model of plane wave propagation in two layer medium.

本文构造了一种在二层介质中平面波传播的时—深转换模型.

互联网摘选

It also inquires into the relationship between the contact spot and 200 mm straight line wave and plane wave quantity.

最后本文还对接触斑点和200mm直线度与平面波动量的关系进行了探讨。

互联网摘选

Through polarization base transformation, the Electric field vector of the incident plane wave and scattering plane wave remain a two-dimensional vector, so that the bi-static scattering matrix has the same form of the mono-static scattering matrix. 2.

通过极化基的变换，将入射平面波和散射平面波的电场矢量保持为二维矢量，使双站散射矩阵具有单站散射矩阵的测量形式。

互联网摘选

However, when considering large-diameter crystal and beam case, the plane wave approximation is no longer applicable, the actual three-dimensional distribution of light must be taken into account.

但是在考虑大口径晶体和光束的情况下，平面波近似方法已不再适用，必须考虑实际光波的三维空间分布情况。

互联网摘选

Numerical Simulation on the Wave Tank and Spatial Development of Disturbance in Plane Poiseuille Flow

波浪水槽和平面泊肃叶流中扰动空间演化的数值模拟

互联网摘选

Acoustic scattering from submerged double infinite concentric cylindrical shell insonified by incident plane wave is studied.

研究水下双层无限长圆柱壳体的声散射.

网络文摘精选

Plane wave quantity and its measurement of plate working surface

平板工作面的平面波动量及其测量

互联网摘选

Next, the basic theory and method for calculating the band structure of PC are presented, especially the plane wave expansion method ( PWE).

接着，介绍了声子晶体带结构计算的基本理论和方法，重点是平面波展开法。

互联网摘选

In this paper, firstly, eigenvalue equations of 2 D and 3 D in plane wave method are obtained.

本文首先推导出了二维、三维情况下平面波法的本征方程.

互联网摘选

Interaction between a CW plane wave and a travelling plane pulse

平面波与平面行波脉冲的声相互作用

互联网摘选

When a plane wave is incident on an interface between two different media.

当平面波入射到不同介质的分界面时.会产生反射与折射.

互联网摘选

Based on the vector angular spectrum representation of Maxwell's equations, the diffracted plane wave is decomposed into the TE and TM terms.

运用麦克斯韦方程组的矢量角谱表述，将平面衍射波分解为TE项和TM项。

互联网摘选

The result is useful for studying polarization aberration of Brewster polarizer in non-plane wave.

对分析曲面波经过Brewster起偏器的偏振象差具有一定的意义.

互联网摘选

The article calculates the perfectly conducting thin cylinder RCS in incidence of TM plane wave by using the two different basis MOM.

利用子域基和物理模式基两种不同基函数下的矩量法对平面波照射下的理想细导电圆柱的单站RCS进行了计算和分析。

互联网摘选

The multiple plane wave scatter theory can express acousto-optic interaction explicitly.

经比较分析发现多重平面波散射理论能够对声光互作用进行良好的解释。

互联网摘选

We study the equation by the method of plane wave or green ruction of FDTD ( Finite difference of time domain) or transfer matrix.

求解该方程组的方法有平面波法、格林函数法、时域有限元差分法、传输矩阵法等。

互联网摘选

Keywords: acoustics, muffler , transfer matrix, plane wave.

关键词: 声音 、 消音器、传输矩阵 、 平面波.

互联网摘选

A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed.

一种特殊类型的、和线性弹性理论中的平面波解有点相像的非稳态运动可以建立起来。

词典精选例句

The description of a plane wave diffracted by a circular aperture is directly started from the Maxwell's equations.

平面波经圆孔光阑衍射的表征是直接基于麦克斯韦方程组。

互联网摘选

Plane wave solutions of biaxial crystal in principal axis coordinate system

双轴晶体中平面波解在主轴坐标系下的表达

互联网摘选

Experiments were carried out for finite-amplitude plane wave in a tube. The results agree better with the present theoretical prediction than the weak shock theory.

在管中作了平面波有限振幅声波传播的实验，测得结果与本文理论符合得比弱冲击理论更好。

互联网摘选

Coupling characteristics of dual-core rectangular lattice photonic crystal fibers are analyzed by the plane-wave expansion method.

讨论了矩形结构光子晶体光纤的制作方法,并提出一种采用堆积 - 拉制法实现这种光纤结构的方法.

互联网摘选

Firstly, probing the medium with a time-harmonic homogeneous plane wave gives the Christoffel equation. Then the formulas for slowness and complex velocities of the longitudinal wave and the slow and quick shear waves may be obtained from Christoffel equation.

使用平面均匀简谐波的方法，得到了Christoffel方程，利用此方程推导出纵波及快、慢横波的慢度和复速度方程。

互联网摘选