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- elastic wave imaging 弹性波
- Keywords: concrete, crack, defect, elastic waves, imaging. 关键词：混凝土、裂缝、缺陷、弹性波、影像法。
- A terahertz continuous wave imaging system was reported. 摘要简要介绍了连续太赫兹波成像系统。
- BWO continuous THz wave imaging is a new approach to nondestructive testing. BWO连续太赫兹波成像是一种新的无损检测方法。
- In this paper, using FEM method to numerical simulate the elastic wave equation. 本文采用有限元法进行弹性波方程数值模拟。
- In this study, we applied the reversibility of elastic wave to a discussion of the reverse time propagation of wave equation. 摘要本文应用波动方程式的可逆性讨论弹性波的逆时影像重建。
- 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。
- The computerized tomography(CT) of elastic wave is a forward problem in the geophysical domain for more than ten years. 弹性波计算机层析成像（CT）技术是十多年来地球物理领域里的一个前沿热门课题。
- Hardin B O, Richare F E. Elastic wave velocities in granular soils[J]. Divi. Proc. of ASCE, 1963,89[SM1]:3-65. 李新.;用超声波法测定三轴仪内非饱和砂土试件动剪切模量初探[A]
- THz wave imaging using BWO as source is a new approach to non-destructive testing. 我们组在前面的工作中实现了基于BWO的透射式成像系统，并且讨论了它在隐蔽物监测和无损检测方面的应用前景。
- By using the propagating theory of elastic wave the attenuation mechanisms of the elastomer with cylindrical bores is analyzed. 摘要应用弹性波在带圆柱通道橡胶体内传播的理论，分析了穿孔橡胶体的吸声机理。
- The thin-layer method(TLM) is a semi-analytical and semi-numerical approach for the analysis of elastic wave propagation in stratified media. 薄层法是分析和模拟弹性波在层状介质中传播的一种半解析半数值方法。
- The elastic wave parameters characteristics of Datong jurassic coal rock bed are analyzed.It will guide the channel wave seismic exploration in future. 对大同侏罗纪煤田的煤岩层弹性波特征参数进行分析,以便指导今后槽波地震探测工作。
- Equivalent offset migration(EOM)method,which has particular advantages in velocity analysis and imaging,provides ideas for scattered wave imaging. 研究表明,基于等效偏移距的偏移方法(EOM)在速度分析和偏移成像方面具有独特的优势,为散射波成像方法研究提供了思路。
- The thin layer method(TLM) is a semi-analytical and semi-numerical approach for the analysis of elastic wave propagation in stratified media. 薄层法是分析和模拟弹性波在层状介质中传播的一种半解析半数值方法。
- Equivalent offset migration (EOM) method, which has particular advantages in velocity analysis and imaging, provides ideas for scattered wave imaging. 研究表明，基于等效偏移距的偏移方法(EOM)在速度分析和偏移成像方面具有独特的优势，为散射波成像方法研究提供了思路。
- The scattering problem of elastic wave by arbitrarily shaped cavities in an infinite anisotropic medium is investigated by the boundary intcgral equation (BIE) method. 本文借助于广义格林公式导出了用位移表示的各向异性介质中SH波入射时的边界积分方程.
- To test the absorbing ability, the reflection coefficient formulas on the absorbing boundaries are derived based on the potential functions theory of elastic wave. 为检验其吸收能力，利用弹性波的势函数理论导出了P波和S波在吸收边界处的反射系数公式。
- We propose a domain decomposition method based on combining the finite element method with the finite difference method for numerical simulation elastic wave propagation. 摘要本文针对弹性波波场传播的数学模型，提出了一种基于有限元和有限差分耦合的区域分裂方法。
- The influenes of triaxial stress states on the elastic wave velocities of clayey sandstone,and claystone and hard siliceous sandstone have been determined by experiments. 岩石所受的三向应力状态对其弹性波传播性质有一定的影响，此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。
