The model of wave propagation in functionally graded material (FGM) is introduced to soil medium, and the concept of functionally graded soil medium is brought forward.
研究了将功能梯度材料中应力波传播的计算模型应用到土介质中，提出了梯度土介质的概念。
Simulated example illustrates the wave propagation in a dispersion medium.
计算实例可以看出频散介质中波的传播情况。
It is revealed that the viscosity effects on the relationship of the amplitudes and wave propagation time with the damage are necessary to consider in the damaged medium.
比较是否考虑粘性时的波幅和波传播时间与损伤的关系，表明粘性是损伤混凝土介质中波传播所必须要考虑的问题。
Wave propagation in porous medium is an important subject in geotechnical and earthquake engineering.
多孔介质中的波的传播是岩土抗震工程中的一个重要课题。
The numerical solution of wave propagation may be obtained by solving for the differential equation of medium motion.
通过求解介质运动做分方程，获得了波的传播问题数值解。
Using the theory of wave propagation, one-dimensional wave equation and inverse problem of damaged medium was established and analyzed.
利用波传播理论，建立损伤介质的一维波动方程及反问题分析理论。
The generalized reflection-transmission coefficient matrix method is developed to study the acoustic wave propagation in a layered cylindric symmetric medium.
本文将广义反射、透射系数矩阵方法推广用于研究声法测井中的声波传播问题。
In order to study laser propagation in inhomogeneous medium, Collins formula was improved by using time inversion characteristic of optic phase conjugation wave.
为了解决非均匀介质中的光传输问题，利用光学相位共轭波的时间反演特性，实现了对克斯林衍射积分公式的改进。
The propagation velocity of elastic wave with different frequencies in same medium is various, which is called dispersive problem of frequency.
相同介质中不同频率的弹性波传播速度是有差异的，即频散问题。
This paper derives an energy attenuation formula of seismic waves in the wavelet-scale domain from the wavelet theory and seismic wave propagation equation in anelastic medium.
本文从小波理论出发，结合地震波在黏弹性介质中的传播方程，推导出小波尺度域地震波能量衰减公式。
Finite Element Technique based on Rayleigh-Ritz idea is used to solve wave propagation in non-homogeneous medium with variable velocities.
为求解变速不均匀介质中波的传播问题，使用了利用瑞雷-里兹法的有限元技术。
Elastic wave propagation in anisotropic medium is simulated by solving the equation system with the aid 'of Fourier numerical method (pseudo-spectrum method).
本文利用傅里叶数值方法(即伪谱法)求解该方程来模拟各向异性介质中弹性议的传播。
According to the properties of wave propagation in multiphase medium, the theoretical formulas for calculating the P-wave and S-wave velocity are deduced.
本文基于多相复合介质的波动传播特性，导出介质内纵、横波速的理论计算公式。
The mathematical model which describes seismic wave propagation in elastoplastic medium is developed on the basis of elastoplastic the - ory.
本文根据弹塑性理论，提出一种弹塑性介质地震波传播的数学模型。
Nevertheness, the pseudo-spectral method has a high computation speed and computational efficiency and can reflect the propagation rules of the wave field in medium visually and effectively.
尽管如此，伪谱法计算速度快，计算效率高，能够直观、高效地反映介质中波场的传播规律。
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。
The paper discusses the principle of porosity prediction with seismic data based on the propagation theory of seismic wave in diphase medium.
基于双相介质中地震波传播理论，论述了地震孔隙度预测原理。
Propagation of seismic wave in complex medium is mostly simulated by numeric solution of oneway or two-way wave equation.
复杂介质中地震波的传播多是通过求取单程或双程波动方程的数值解进行模拟的。
According to the variational principle for wave propagation, the elastic wave equation and the compressional and shear wave equations in a vertically inhomogeneous medium are developed.
本文由波传播问题的变分原理导出了垂向不均匀介质中的弹性波波动方程及纵波和横波波动方程。
Finite element method is an useful tool for modeling seismic wave in complex medium, it simulates seismic wave propagation quite realistically and displays seismic wave fields in quite detailed way.
有限元法是复杂介质地震模拟的有力工具，它能比较客观地反映地震波的传播过程，比较细致地再现地震图像。
The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, the refraction error is produced.
由于空中大气介质的不均匀性使得电波传播速度减慢射线产生弯曲，从而产生折射误差。
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。
Studying the propagation of nonsinusoidal wave in a dissipative medium is theoretically important for analyzing the problems on absorbed pulse waves in hidden techniques.
研究非正弦电磁波在损耗介质中传播的理论，对分析隐身技术中脉冲波的吸收等问题有理论指导意义。
The finite element method was used to calculate elastic wave propagation in the medium.
本文采用有限元素法计算弹性波在介质中的传播。
Depending on the experimental result and the theory of sound wave propagation in layered medium, a mechanism of gradient water-soluble polymer solution was developed.
根据连续分层介质中声波传播理论建立了计算水溶性高分子溶解过程中声衰减的数学模型。计算结果与实验结果一致。
Taking soils as three-phase medium, a study on wave propagation in nearly saturated soils is presented in this dissertation.
本文将土体视作三相介质，对准饱和土中波的传播特性做了深入的研究。
Wave equations numerical simulation is actually calculate the solution of seismic waves 'equations which contains all information of seismic waves 'propagation under different medium situation.
波动方程数值模拟实质上是根据地下介质条件求解地震波波动方程，模拟的地震波场包含地震波传播的各种信息。
A theoretical model is developed to simulate the dynamic load transfer between the actuators and the host medium and the resulting elastic wave propagation.
建立一个理论模型来模拟致动器和母体之间的动态载荷传递以及产生的弹性波传播。
A new symplectic geometrical high frequency approximation method for solving the propagation of electromagnetic wave in an inhomogeneous medium is presented.
提出了一种基于辛几何的高频近似的新方法，并用此方法求解了电磁波在一非均匀媒质中的传播问题。
The application of this differentiator to model seismic wave propagation in homogenous layered medium and complex medium also shows high accuracy and robust stability.
这种与众不同的应用模型和复杂的均匀层状介质中地震波的传播也显示精度高，鲁棒稳定性。
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