基于柱面波和球面波动方程，推导建立了适用于无限介质中二维和三维瞬态波动分析的显式时域辐射边界条件公式。
Locally explicit time-domain radiation boundary condition for 2-d and 3-d transient analyses of wave propagation in unbounded media were developed for the cylindrical and spherical wave equations.
利用瞬态波的脉冲入射信号以及脉冲响应对损伤混凝土介质的材料常数（损伤度）进行反演，研究反演理论和反演计算方法。
The inverse theories and calculated methods of the material constant (damage degree) of damaged concrete media are studied using both of incident impulse signal and received impulse response.
瞬态面波勘探就是物探技术中的一种。
Transient surface wave exploration is a geophysical exploration technique.
分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。
The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.
本文详细介绍了瞬态瑞雷面波在基础勘探中的数据采集、处理及解译方法。
This paper presents a transient basis for the exploration of the Rayleigh wave data acquisition, processing and interpretation methods.
针对目前水泥混凝土路面强度检测的缺陷，提出了利用瞬态瑞雷面波法无损检测路面强度的基本原理和方法。
To counter the defects of intensity inspection of cement concrete pavement, the basic principle and method of non-destructive intensity inspection of pavement by transient Rayleigh wave are presented.
论文中完成的瞬态信号采集系统为开展毫米波雷达目标识别的研究工作提供了便利。
The transient signal collecting system which is constructed in the paper supplies convenience for the research of the target recognition of millimeter radar.
论述了瞬态瑞利波探测技术的工作原理、工作方法和在山西晋城煤业集团矿区的应用情况。
This paper introduces in detail the principle and working method of transient Rayleigh waves technique and its application in Jincheng coal co. Ltd.
采用了瞬态负压波法、流量输差法和压力流量综合法等多种泄漏诊断方法。
Several leak diagnosis methods such as instantaneous negative pressure wave, flow-lack, and hybrid diagnostic method were used.
笔者重点对瞬态瑞利波相速度的算法进行了研究。
The algorithm for solving phase velocity of transient Reyleigh wave was emphatically studied.
利用多尺度小波变换，把管道泄漏产生的负压波信号作为瞬态信号，来识别管道的局部泄漏特征。
Taking the negative pressure wave produced by pipeline leakage as a transient signal, the multi scale wavelet transform can be utilized to identify the pipeline leakage signal in local.
基于瞬态压力波的泄漏检测和定位方法在实际中得到广泛的应用。
The method of leak detection and location for pipelines based on instantaneous pressure wave is most widely used in practice.
应用瞬态面波测试技术可以快速检测周土剪切波速，从而可实现单桩承载力的无损检测。
Using transient surface wave exploration, the shear wave velocity of soil around pile can be tested, and the bearing capacity of piles can be determined.
分析了热油输送管道沿程瞬态负压波传播速度的变化，采取两种搜索方法数值积分求解泄漏点位置。
The velocity change of instantaneous negative pressure wave along the pipeline is analyzed when hot oil is transported. Two searching methods are applied to locate leakage through numerical integral.
针对此问题，采用了输差法进行泄漏的检测与报警、瞬态负压波法与稳态相关时延分析法相结合进行泄漏点的实时定位技术。
It is based on the measuring the difference between the input and autput of the pipeline and by using the combination of the WSV and the SRDA to locate the leakage.
介绍瞬态瑞雷面波在工程勘查中的应用，面波勘探原理和数据处理及解释方法。
The application of the transient state Rayleigh wave technique in the engineering exploration, its exploration principle and the method of the data processing are introduced in this paper.
讨论了冷等离子体中的定向瞬态电磁波。
A directed transient electromagnetic wave in a cold plasma is investigated.
文章将应用于弹性杆系结构动态响应的回传波射矩阵法扩展应用于粘弹性框架的瞬态问题的求解。
The reverberation ray matrix method for analyzing dynamic response of elastic trusses or frames is extended and used to solve the transient response of frames made of viscoelastic bars.
在电磁波瞬态极化理论的基础上，研究了部分极化波的瞬态极化投影的统计特性。
The statistical characteristics of the instantaneous polarization projections (IPP) of partially polarized waves are studied on the basis of the theory of instantaneous polarization.
根据激振方式的不同，瑞雷面波勘探分为稳态法和瞬态法两种。
Rayleigh wave exploration is divided into steady state way and transient state way according to the differ of explode mode.
利用小波变换模极大值原理，提出了用小波变换尺度谱检测瞬态信号波至点的新方法，研究了其检测无噪声和有噪声条件下的瞬态信号的能力。
Based on the principle of modulus maximum, a new approach using scalogram of wavelet transform for transient signal, under noise free condition or noise condition separately, is described.
本文研究了利用小波变换提取水下目标瞬态回波的边缘特征并进行目标分类的可行性。
The feasibilities of using wavelet transform to extract the edges of the echoes and then classify the targets based on the edge features have been studied in this paper.
幅射瞬态脉冲波的圆形活塞声源在超声检测中得到广泛应用。
The acoustic source of plane circular pistons with the radiating transient pulse wave finds wide application in the ultrasonic inspection and test.
在此基础上推导了适合瞬态弹性波对异质体散射求解的变换域位移场积分方程。
Furthermore, an integral equation in transformed filed, which suited to calculate the instantaneous elastic wave scattering by a number of irregular scatterers embedded in an elastic body is derived.
介绍了瞬态瑞利波法的基本原理和测试方法，并将该方法用来评价粉喷桩复合地基的加固效果，建立了剪切波波速和复合地基承载力之间的相关关系。
This paper presents the SASW method to evaluate the DJMP composite foundation, and the relationship between the velocity vs and bearing capacity of the DJMP composite foundation was established.
提出基于小波尺度图重分配的信号瞬态特征检测方法和瞬时能量估计方法，并应用于轴承在多种轻微故障状况下的振动非平稳特征的检测与表示。
The singal transient feature detection represent method, and a transient energy evaluation method are used based on the reassigned scalogram for the vibration non-stationary feature representation.
本文采用有限元法研究近场双圆形孔洞、圆环形衬砌对瞬态sh波的散射和动应力集中问题。
The scattering problems and the dynamic stress concentration problems of SH-wave by double circle cavities, and circle lining in near field are investigated in this thesis by the method of FEM.
以激波管作为加载工具、利用研制的瞬态谱测试技术，对苯在冲击波作用下的快速反应光谱及微观机理进行研究。
The fast reaction spectrum and micro-mechanism of benzene has been studied in shock tube with transient spectroscopic technique.
瞬态面波技术具有速度快、精度高、对场地要求低等特点。
The instant surface wave testing is characterized by fast velocity, high precision and low requirement for site.
本文采用一种类似于差分方法的集中质量有限元模型和人工边界透射理论分析倾斜成层弹性半空间中瞬态SH波的近场波动问题。
In this paper, a finite element method with lumped mass formulation is applied to analyse the transient SH wave propagation in an elastic half-space with a dipping layer.
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