The concepts for the long period oscillation improvement in hwa - lien harbor include destroying the wave field structure of the incident waves , reducing the incident wave energy , and dissipating the energy of long period wave in the harbor 至目前为止，有关花莲港长周期振?多认为集中于?风作用时期，而改善的构想则大致有：破坏入射波的波场结构、削减入射波能、以及消散港内的长波能量。
Because the feature size of subwavelength diffractive microlens is smaller than the incident wavelength , scalar diffractive theory cannot be used to the analysis . it also precludes rigorous vector coupled - wave theory for its finite and aperiod structure 由于亚波长衍射微透镜的特征尺寸小于入射波长，因此不能采用标量衍射理论来分析，又由于它是有限非周期的结构，严格的耦合波方法对它也不适用。
Based on the extended boundary condition method and addition theorem of vector spherical functions , this paper study the light scattering problems of aggregate spheres from the angles of a single sphere , two - sphere system and multi - spheres system 本文基于扩展边界条件法及矢量球谐函数的加法定理，通过严格求解maxwell方程所得到的散射传输矩阵，对与入射波波长可比拟的群聚球形粒子的散射问题进行了研究。
Unique and valuable results have been achieved as follows : 1 . through math modal , the relation between the phase conjugation reflective of ce . ' batios and incident angle , incident position were calculated . experiment results are quite accordance with theoretical calculations 入射波长为632 . 8nm时，利用数学模型对位相共轭反射率与入射角度，位相共轭反射率与入射位置关系等进行了理论分析计算，实验结果与理论计算结果基本符合。
In this paper , the emphasis is the application of the fdtd arithmetic in slot ' s scattering . this method modifies incidence wave and the reflected wave from conducted plane , and that result in the fdtd scattering formulations are only about the scattering field of slot 论文重点研究了fdtd算法在无限大导电平面上缝隙的散射计算中的应用，该算法对入射波和平面反射波进行了处理和修正，最终，在fdtd散射公式中只计算缝隙的散射。
Abstract : the effects of young ' s modulus on the wave velocity , on the potential energy and kinetic energy in arbitrarily volume in the maocinery longitudinal and on the vibration phase among incidance ware , reflex wave and transmission wave at the boundary surface of two kinds of medium are discusseed 文摘:本文就杨氏模量在机械纵波中的波速、任意体积内的势能和动能及在两种介质界面处入射波、反射波、透射波的振动周相关系中的作用作了阐述。
In chapter 4 windowed function of data signal processing is introduced and applied to addition theorem , which succeeds in solving the difficult problem : it has a bad result when recursive t - matrix is applied to calculate the wave scattering of electrically large objects and multiple objects in the excitation of te wave 在第四章中引入数字信号处理中的窗函数，成功解决了在入射波为te波时，用递推t矩阵法计算电大尺寸物体或多个散射体时，精度不高的问题。
Using the phase conjugation mixer the compact wire antenna with two isolated ports presented in chapter 2 is simulated , and the results show that the antenna can follow the incoming signal with the main beam and has 4 - 8db gain improve against the standard monopole in the incoming signal direction 对本文第二章提出的两馈电端口的高隔离度线天线的仿真表明，利用相位共轭电子科技大学博士论文混频器，天线系统能以主波束在0 ’一360 ’的范围内跟踪入射波方向，具有一定的方向回溯能力。
This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas , obtains stable time course by resolving in time domain , and then pressure vectors will be available . the pressure includes static pressure , incident waves pressure , diffraction pressure , radiation pressure , and wave impact pressure , and changed with instantaneous draft of each intersection 该方法应用扩展的切片理论建立迎浪规则波中船舶非线性运动方程，通过时域步进求解获得船舶刚体运动的稳定时历，进而给出与船体各横剖面瞬时吃水相对应的静水压力变化、入射波压力、绕射压力、辐射压力和波浪冲击压力诸分量。
The notable torsion effects of the surface ground motion above the alluvial valley are illustrated and the torsion effects become stronger as the frequency of the incidence is higher . ( 4 ) antiplane surface motion of the underground circular soft inclusion and the underground homogeneous soft interlayer is investigated in this paper . the results indicate : surface displacement amplitudes just above the soft inclusion of small depth - to - width ratio is amplified and soft interlayer of small depth - to - thickness ratio is amplified to a certain degree , and moreover , the latter is lower limit of the former 结果表明：垂直入射时，小深宽比软夹塞上方地表位移幅值有较大的放大，小深厚比软夹层的地表位移幅值也有一定的放大，且后者为前者的下限；波接近掠入射时，软夹塞正上方地表点和软夹层的中国地震局工程力学研究所硕士学位论文一地表位移幅值都没有放大，而软夹塞迎波面一侧地表点的位移幅值会有一定的放大；软夹塞上方的地表位移运动有较强烈的扭转效应，且此扭转效应随入射波频率的增高而增强。
