1) bulk wave scattering
体波散射
1.
The losses due to bulk wave scattering on non-synchronous area in SAW device was studied using boundary element method combined finite element method(FEM/BEM).
用有限元/边界元法(FEM/BEM)研究了表面波器件中非同步区域中体波散射引起的损耗。
2) acoustic superscatterer
声波超散射体
1.
In this thesis,we design and investigate two kinds of novel acoustic devices using acoustic metametarials:two-dimensional acoustic superscatterers and two-dimensional novel acoustic cloak that can cloak "external" objects.
本文中,作者利用声波奇异介质设计了两种新型的声学器件:二维声波超散射体和能对外部物体实现隐身的新型二维声波隐身衣。
3) Microwave Discrete Scatter Model
微波离散散射体模型
4) scattered wave
散射波
1.
Post-stack attenuation of near-surface scattered wave.;
近地表散射波的叠后衰减
2.
This paper reviewed the definitions of seismic wave scattering,and investigated the characteristics of scattered wave,its differences with reflected wave,and the complex scattering behaviors of metallic ore seismic wave field.
介绍了地震波散射的概念、散射波特征、散射波与反射波的区别等散射波地震方法的基础内容,分析了金属矿地震波场复杂的散射特征。
3.
Results The calculation result shows that spherical surface of the conductor buried in sandy soil presents not only primary and secondary scattered waves but also multiple wave and creeping.
结果表明埋藏在沙土中的导体球面不仅仅存在一次和二次散射波,而且还存在多次波和爬行波。
5) acoustic scattering
声波散射
1.
A new tree structure of fast multi-pole boundary element method for solving the acoustic scattering problem
求解声波散射问题的边界元快速多极算法的一种新型树结构
2.
Two types of methods are usually used for solving problems of numerical modeling of acoustic scattering.
声波散射的数值模拟问题一般用网格法或积分方程法解决。
6) scattering of SH-wave
SH波散射
1.
A numerical simulation for the scattering of SH-wave in infinite area;
吸收边界条件下平面SH波散射的数值模拟
2.
The scattering of SH-waves by an arc-shaped cylindrical hill above a subsurface cavity,or canyon,is studied based on the conjunction concept,using complex functions and the multi-polar coordinate method.
采用“契合”的思想,给出了地下孔洞与地面上的弧形凸起地形对SH波散射问题的解决方法。
3.
An analytic method is developed for the problem of scattering of SH-wave and dynamic stress concentration around a circular cavity near the interface of elastic half space.
建立了求解在含有圆形孔洞的弹性半空间中SH波散射与圆形孔洞附近动应力集中问题的解析方法。
补充资料：弹性散射和非弹性散射
| 弹性散射和非弹性散射 elastic scattering and inelastic scattering 使用粒子间碰撞来研究粒子的性质、相互作用和内部结构的两种情况。如果碰撞过程中两粒子间只有动能的交换，粒子类型、其内部运动状态和数目并无变化，则称为弹性散射或弹性碰撞。如果碰撞过程中除了有动能交换外，粒子的数目、类型和内部状态有所改变或转化为其他粒子，则称为非弹性散射或非弹性碰撞。 散射过程的研究对于了解许多物理现象具有很重要的意义。例如E.卢瑟福对a粒子被物质散射的研究，提出原子的有核模型；J.弗兰克和G.L.赫兹的电子与原子碰撞实验证实了N.玻尔的定态假设；建造高能加速器就是利用被加速粒子的散射过程来研究粒子的性质、相互作用和相互转化的规律。60年代末到70年代初利用高能轻子对质子和中子的深度非弹性散射的实验，发现质子和中子内部存在点状结构。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条