超声在介质中的传输是一个复杂的过程，它既被散射又被吸收，而生物媒质是由水、脂肪和蛋白质组成的物质，与均匀流体具有完全不同的特点。
Ultrasonic scattering and absorption is a complicated processing. Biologic media is composed of water, fat and protein, which is different from even liquid matter.
其次，本文基于面积分方程，研究了均匀介质目标的电磁散射。
Secondly, the surface integral equation(SIE) is presented to calculate the electromagnetic scattering characteristics from the homogeneous dielectric targets.
提出了一种计算非均匀介质光学常数的新方法，该方法仔细地考虑了光在非均匀介质中的吸收和散射。
A new method to calculate the optical constants of inhomogeneous mediums is presented. This method is to consider the absorption and scattering of light in the medium carefully.
对于复杂非均匀介质，可以利用地震散射波来研究其分布和性质。
For complex heterogeneous medium, the distribution and characteristics of its heterogeneity can be studied by seismic scattering wave.
对于其它非均匀介质中的电磁散射、逆散射问题，本文方法也具有重要的应用价值。
The present method has also a imPOrtant value for application to solve electromagnetic scattering, inverse scattering about inhomogeneous media except planar layer-media.
双感应测井在油田现场应用非常普遍，其数据反演属于非均匀介质中电磁波逆散射问题范畴。
Inversion of dual induction logging measurements belongs to the category of electromagnetic inverse scattering in nonhomogeneous media.
另一部分则是由于声波在不均匀介质中的声散射把能量散射到其他方向，而使原来传播方向上的声波能量减弱。
The dispersion is due to the inhomogeneity of medium, which will lead the energy of sound to deviate from its direction of propagation.
利用矩量法研究了三维导体、均匀介质体以及非均匀介质体的电磁散射特性。
In this paper, three-dimensional targets are calculated using MOM. These targets include conducting targets, homogeneous dielectric targets and inhomogeneous dielectric targets.
本文研究二维非均匀有耗介质柱在电极化二维脉冲波激励下的瞬态散射。
The transient scattering of an electrically polarized, 2-d pulsed wave by 2-d inhomogeneous, lossy dielectric cylinder is investigated.
随机介质与实际介质更接近，当不均匀程度大于5%或更大时，散射噪声将淹没矿体有效反射信号。
Random medium is closer to the actual medium, when the level of heterogeneous is greater than 5%, the reflection signal will be submerged in scatter noise.
随机介质与实际介质更接近，当不均匀程度大于5%或更大时，散射噪声将淹没矿体有效反射信号。
Random medium is closer to the actual medium, when the level of heterogeneous is greater than 5%, the reflection signal will be submerged in scatter noise.
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