Montgomery and kallenbach proposed that the propagation of vortex rossby waves may intensify the tropical cyclone , this new physical mechanism has been widely studied Montgomery和kallenbach提出，涡旋rossby波传播可使热带气旋加强，这一新的物理机制得到了广泛的研究。
Let us consider a slender bar of the medium , with a constant cross - section area . a short axial disturbance is produced at one of the bar , resulting in the propagation of a wave 此方法的原理在于考虑一个等横截面的圆形细杆介质，在波传播到杆的一端时，产生了微小的轴向干扰。
To describe the phenomena of stop - wave in the continuous traffic flow , a stop - wave model was built based on kinematic equation by analyzing kinematic characteristics of stop - wave spread 摘要为描述连续交通流中的停车波现象，分析了停车波传播的运动学特性，基于运动学方程建立了停车波模型。
The results show that the altimetric data can give a good distribution of tides in the yellow sea and the east china sea , especially in the deep region of the east china sea 结果显示：高度计资料可以较好的反映潮波在黄海和东海的分布特征，特别是在东海开阔区域可以比较准确的反映潮波传播规律。
Two of the most predominant characteristics of surface wave are dispersion and attenuation which are the effective tools to study the velocity structure and viscidity structure of the earth interior 频敌和衰减是面波传播中的两个基本特征，利用面波频散和衰减可以有效地研究地球内部速度结构和粘弹性结构。
The present thesis reviews the development process of the theory of porous media and summarizes systematically the state and major progress of the wave propagation problem in the fluid - saturated porous media 本文回顾了含液多孔介质理论的发展历程，系统地总结了液饱和多孔介质中应力波传播问题的研究现状和主要成果。
The main conclusions show as following : 1 the effects of propagating vortex rossby waves on tc intensity change are relative closely to the position , the size and intensity of the initial disturbance 主要结果可归纳如下： 1涡旋rossby波传播对热带气旋强度变化的影响，与初始扰动相对涡旋中心的位置、初始扰动尺度大小及强度等关系密切。
2 . in terms of the theory analysis of structure design for composite laminating targets , the demands of fiber content for ballistic laminating composites are analyzed from energy absorption and wave transmission and complex effect 2 、根据纤维层压复合材料靶板结构设计的理论分析，从能量吸收与波传播及复合效应二个方面分析了防弹层压复合材料对纤维含量的要求。
Firstly , this paper designs a polar coordinate barotropic vorticity equation semi - spectral model and a quasi - geostrophic grid model in order to research the propagation of vortex rossby waves and tropical cyclone intensity change entirely 本文首先设计了一个极坐标系正压涡度方程的半谱模式、一个准地转格点模式对涡旋rossby波传播和热带气旋强度变化进行了较为系统的研究。
The effects of parallel aligned opening or water - filled fractures on waves propagation were investigated . the results shows that : 1 ) the existence of anisotropic properties of fractured rocks leads to waves conversion and the wave fronts become wider 通过模拟点源产生的弹性波在均匀各向同性各向异性岩石中的传播，研究了平行排列裂缝的存在以及改变裂缝的参数对弹性波传播特性的影响。
