波的传播

Moreover, the convergence of EP flux indicates that the stratospheric sudden warming is the result of anomalous planetary wave propagation along the high latitude waveguide and its interaction with mean flows.

通过对EP通量进一步的研究表明，平流层爆发性增温是沿高纬度波导传播的异常行星波与平均气流相互作用的结果。

According to the multi-scale propagation characteristic of image edge and noise as well as principle of edge detection using wavelet transforman,an algorithm based on cubic B-spline wavelet and directional derivative is presented.

根据图像边缘及噪声的多尺度传播特性和小波边缘检测的基本原理，提出了一种基于方向导数和三次B样条小波的边缘检测算法。

Based on the linear elastodynamics theory, an analytical model is established for the propagation of generalized Rayleigh waves in a coated structure. Moreover, the dispersion equation is derived from the wave motion equations and the boundary conditions.

基于弹性动力学的线性理论，建立了涂层材料中广义瑞利波传播的理论分析模型，并且由波动方程和边界条件推导了波的频散方程。

Inversion of wave propagation in inhomogeneous damaged media is studied, and damage degree is obtained according to received wave response.

介绍了波在非均匀损伤介质中的传播的反问题，根据波的响应来反演介质的损伤。

By using Flash software produced a number of fluid flow in the animation, including the viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave Dissemination process, bypassing the wings of the two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and critical parameters such as the concept that a number of animation, produced by sports meeting between the animation, shape meeting between animation, masking animation and time Axis to achieve those effects the flow of fluid animation, and by adding these buttons used to control the flow of fluid animation, and so will the speed of the fluid flow in a clear show up.

本文利用Flash软件制作了流体若干流动现象的动画，包括粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数的概念说明等若干动画，通过制作运动补间动画、形状补间动画、遮罩动画和时间轴特效来实现这些流体流动的动画效果，并通过添加按钮用于控制这些流体流动的动画的速度等将上述流体流动现象清晰的展示出来。

This paper describes how to use Flash production of viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave propagation process, bypassing the wings The two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and critical parameters such as the concept that a number of animation, produced by sports meeting between the animation, shape meeting between animation, masking effects animation and timeline to achieve these fluid flow The animation, and by adding these buttons used to control the flow of fluid animation speed.

本文介绍了如何运用Flash制作粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数的概念说明等若干动画，通过制作运动补间动画、形状补间动画、遮罩动画和时间轴特效来实现这些流体流动的动画效果，并通过添加按钮用于控制这些流体流动的动画的速度。

Based on the theory of rayleigh wave propagation in layer medium,the variation of wave velocity can reflect the variation of rock and soil mechanical property.

根据瑞雷面波在层状介质中的传播理论，波速的变化可以反映出岩土力学性质的变化。

For understanding the phase and transfer properties of optical wave propagating through negative refractive index medium layer, the relations between negative refractive index, the value and direction of wave vector k, the coordinates and the phase have been investigated intensively.

针对在理解负折射率材料中光波的传播特性时相位的特殊性质，详细分析推证了负折射率介质中折射率、波矢k的大小和方向、空间坐标系以及波相相位互之间的关系。

The propagation characteristic of stress wave in perfect piles with the influence of pile material damping and the soil damping , in different kinds of defect piles and several liable misjudging situations are briefly simulated .

主要模拟了应力波在完整桩中存在桩身材料阻尼和土阻力影响时的传播特性、在各种不同类型的缺陷桩中的传播特性及几种易发生误判的情况，结合工程实际对各种不同的情况进行分析总结。

Two dominate variation trends are distinguished in the data plots of compressional-wave velocity versus Possion ratio, indicating the effects of mud content and calcite cement on the elastic properties of sandstone samples. In each change trend, with the rock texture transfering gradually from grain-supporting to matrix-supporting with increasing mud and calcite cement content, the propagation of elastic wave also changed from grain-to-grain contacts to rock matrix, which resulted in the measured data illustrating extremely different tendency. It helps utilize the physics properties of reservoir sandstone to extract rock texture and diagenesis properties in the research area.

样品在纵波速度－泊松比交汇图中表现出两种主要变化趋势，分别对应泥质与钙质胶结物的影响；在每个变化趋势中随泥质含量与钙质胶结物含量的增加，岩石结构从颗粒所构成的骨架支撑逐渐表现为基质支撑，弹性波能量的传播也从通过颗粒接触边界转变为通过岩石基质传播，这是使砂岩样品测试结果表现出两种截然不同变化趋势的主要原因，为利用岩石物理特性从地震资料中提取岩石结构、沉积与成岩特征的信息提供了依据。

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。