波的传播

In this paper, the propagation of electron cyclotron waves in plasmas is studied by numerically resolving the ray equations.

通过数值求解波迹方程研究了电子回旋波在等离子体中的传播。

On this basis, we further analyze the situation of backward wave in anisotropic metamaterials with different dispersion relations, and the angle between wave vector and Poynting vector, and the general conclusion of backward wave propagation are obtained.

在此基础上，进一步分析了几种不同色散曲线关系的各向异性超常材料中倒退波的产生情况，获得了电磁波波矢和坡印亭矢量夹角的具体表达式和倒退波传播的一般性结论。

This paper firstly established emulation mode of the transmission of outer radiant point signal,therefore calculated intensity of direct wave signal and multipath signal ,and compared it with practical measure value.

首先建立了外源信号传播的仿真模型，由此推算出直达波信号与多径反射信号的强度，并与实际测量情况进行了比较验证，然后将直达波强度与多径信号强度作了对比分析，得出直达波的存在对布站的影响，从而为接收站的布置问题提供了参考依据。

In this dissertation, the propagation of axial symmetric longitudinal wave mode under the complicated stress environment is investigated.

由于轴对称纵向模式的导波的激发和接收比较容易，且它的各种特性与板中Lamb波很类似，因此轴对称纵向模式成为了工程中利用导波进行无损检测时采用最多的一种模式，所以本文对该种模式在复杂应力环境下管壁中传播特性进行了深入的研究。

Results show good agreement between numerical and shock polar theory in the regular reflection zone.

在正规反射区，计算结果与激波极线理论基本一致；应用燃烧模型，分别计算了Fe球壳装药JB90 0 3及JB90 14散心爆轰波的绕射传播，计算结果与实验很好地符合。

And then we demarcated the saltation time and starting time of this travelling wave respectively by the first kind of cubic B-spline wavelet and the second kind of cubic B-spline wavelet.

由于行波各频率分量在线路中的传播速度是不同的，而我们所检测到的行波浪涌并非行波的最高频率分量，所以必须选取与所检测到的行波浪涌相吻合的波速。

Refraction: The change of direction of a light ray or energy wave from a straight line as it passes obliquely from one medium to another in which its velocity is different.

折射：当光线或能量波倾斜着穿过一种媒介到另一种媒介时，由于光线在两种媒介中的传播速度不同，导致其传播方向发生偏转。

The general 2-D FDFD equations in the Cartesian coordinate system and difference equations for the trapezoidal bevel edge of the waveguide are presented. Transmission characteristics of single and double trapezoidal-ridge waveguides are then analyzed using these equations.

采用直角坐标系中2-D FDFD的一般分析公式和波导梯形斜边上的差分公式，对梯形单脊矩形波导和梯形双脊矩形波导的传播特性进行了分析。

Ferroelectric Domain Layer Wave is a piezoelectric couping wave propagating along the interface of 180°domain.

铁电畴层波是一种沿180°畴界面传播的压电耦合波，自第一篇有关铁电畴层波的论文在美国铁电杂志(1983)上发表以来，这一领域的研究有了较大的发展。。。

Through comparing with the local ERS\|2 satellite image this simulation also validates the effects of ocean topography on the propagation of internal waves such as fission and isobaths\|parallelized propagation direction.

对比于实地星载SAR图像，仿真结果也验证了内波在传播过程中受地形变化影响而出现的传播方向平行于等深线、分裂等现象。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。