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lossy media     
相关语句
  有耗介质
     GPML provides a general absorbing boundary condition for lossless and lossy media using MRTD.
     GPML既可以用来截断无耗介质也可以用来截断有耗介质,为时域多分辨分析方法提供了一种较为通用的吸收边界。
短句来源
     The surface waves propagating on conducting plane covered with lossy media are analyzed.
     用横向谐振法分析有耗介质涂覆导体平面上的表面波。
短句来源
     Starting from the derivation of conventional Mur absorbing boundary conditions, co esponding parameters of lossy media are introduced, which are used for the discontinuity of sectional boundary electromagnetic parameter and cases of lossy media.
     从常规Mur吸收边界条件的推导出发 ,引入有耗介质的相应参数 ,使其可应用于截断边界电磁参数不连续和介质为有耗的情形。
短句来源
     ANALYSIS OF SURFACE WAVE ON CONDUCTING PLANE COVERED WITH LOSSY MEDIA
     有耗介质涂覆导体平面上的表面波分析
短句来源
     Therefore, surface waves on radar target covered with lossy media have no contribution to RCS directly. But meeting with discontinuities on the targets, it can be transform into radiated, so restrainting surface waves on radar targets is necessary to reduce their RCS.
     可见,用有耗介质材料涂覆的雷达目标上的表面波对RCS将没有直接的贡献,但是当传播过程中遇到不连续性或不均匀性时,表面波可能转变成新的辐射源,因此应当考虑对表面波的抑制。
短句来源
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  损耗媒质
     DETERMINATION OF ACOUSTIC NONLINEARITY PARMEER B/A IN LOSSY MEDIA BY FINITE AMPLITUDE METHOD
     有限振幅法研究损耗媒质的非线性声参量
短句来源
     Solving the propagation and reflection of mono pulse in the layered inhomogeneous and low lossy media with wavelet transform method
     小波变换法求解单脉冲在低损耗媒质中的传播
短句来源
     In this paper, a wavelet transform method is presented to solve the propagation and reflection of mono pulse in the layered inhomogeneous and low lossy media.
     文章提出了一种利用小波变换求解分层、非均匀、低损耗媒质中波的传播与反射问题的新方法。
短句来源
     As an asymptotic solution of the wave equation at high, frequency, the complex ray field in lossy media is discussed in detail, and oompai'ed with the case of lossless ones.
     将损耗媒质中的复射线场视为波动方程的一个高频渐近解,详细讨论了这种场的属性,并耗情形作了对比.
短句来源
     COMPLEX RAY FIELD IN LOSSY MEDIA
     损耗媒质中的复射线场
短句来源
更多       
  损耗介质
     Quasi Standing Wave and Generalized Half Wave Loss of Electromagnetic in Lossy Media
     损耗介质中电磁波的准驻波及广义半波损失
短句来源
     Realization of Absorbing Boundary Condition with Lossy Media for Ground Penetrating Radar Simulation
     地质雷达数值模拟中有损耗介质吸收边界条件的实现
短句来源
     Comppared with its series of methods, the relation and advantage are discussod. By extending the application scope of the wave functions addition theorems, it is proved that the methods can be fit for the lossy media.
     还论述了该方法与系列算法中其它方法之间的联系及优越性,并对波函数的加法定理进行了扯广,证实了该定理同样适用于虚宗量的情况,将两方面的内容加以结合,应用于损耗介质散射场的计算。
短句来源
  有损耗介质
     Realization of Absorbing Boundary Condition with Lossy Media for Ground Penetrating Radar Simulation
     地质雷达数值模拟中有损耗介质吸收边界条件的实现
短句来源

 

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      lossy media
    They have been used to study electromagnetic wave propagation in lossy media.
          
    This may be useful for numerical computation in lossy media.
          
    The inverse scattering problem for asymmetric two-component wave equations corresponding to lossy media is also examined and solved by using two coupled sets of Schur recursions.
          
    The numerical dispersion and the insertion of lossy media in the One-Step method are evaluated.
          
    Examples including wave propagation in lossless and lossy media are included.
          
    更多          


    The problem concerning the ray theory fcr lossy media seems to have been left untouched in the field of acoustics.

    在声学领域内,关于损耗媒质的射线理论问题迄今尚未被讨论过。本文从描述粘滞性、导热流体的基本方程组出发,同时考虑到重力场和流体定常运动的影响,导出分层大气中的“局部”频散方程。利用从Sommerfeld-Runge折射定律和Whitham波峰守恒定律导出的、推广到吸收媒质中的Hamilton方程组,最后推出用以计算射线路径的参量方程组,它们可以作为数值积分的基础而对具体的大气模型算出声线路径,这种路径具有复数坐标,但只有它们的终端在实空间中时才有物理意义。

    By means of frqeuency-domain analysis method,the reflection of electromagnetic pulse on the interface of two kinds of lossy media is discussed. The relationship between the polarity of the reflected pulse and the distribution of reflection coefficient in the complex plane is found.

    本文运用频域法较详细地讨论了电磁脉冲在两种有耗媒质分界面上的反射问题,把反射脉冲的极性与反射系数在复平面上的分布联系起来,并用快速傅里叶变换计算了几种情况下的反射波形,得到了有益的结论.

    Tne acoustic nonlinearity parameter B/A is measured by using finite amplitude insert-substitution method. For lossy media the sound attenuation of samples must be acounted for in the determination of nonlinearity parameter B/A. Considering the influence of both sound attenuation and diffraction of the transducer on the experimental measurement, a modified formula for B/A values is derived in this paper. On the basis of this formula, the B/T values and its dependence on the concentration and the structure...

    Tne acoustic nonlinearity parameter B/A is measured by using finite amplitude insert-substitution method. For lossy media the sound attenuation of samples must be acounted for in the determination of nonlinearity parameter B/A. Considering the influence of both sound attenuation and diffraction of the transducer on the experimental measurement, a modified formula for B/A values is derived in this paper. On the basis of this formula, the B/T values and its dependence on the concentration and the structure of biological samples, including biological solutions and soft tissues, have been studied.

    用有限振幅插入取代法研究非线性声参量B/A,对于耗散媒介应计及样品的声衰减,本文在考虑了样品的声衰减和换能器的衍射对测量的影响后推导了非线性参量的修正公式。利用此公式研究了生物样品包括生物流体和动物软组织的B/A值及其与浓度和样品结构的依赖关系。

     
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