弹性散射

Complex method and multi-polar coordinate transformation are used here to study the scattering problem of SH -wave to the circular cavity in the half-space with elastic constraints acting on the straight boundary.

利用复变函数法和多极坐标移动技术求解讨论弹性约束边界半空间内浅埋圆孔对稳态入射平面SH（shearing horizontal，反平面剪切）波的散射问题。

Interface;SH-wave;Green's function;cylindrical elasticinclusion;scattering cross-section

中文关键词：界面，SH波，Green 函数法，圆柱形弹性夹杂，散射截面

Simultaneously, small parameter perturbation methods are employed to transform the problem of elastic wave scattering in cylindrical shell with a cutout into the iterative addition of a series of boundary value problems and to give a semi-analytical method for solving this problem.

同时，采用摄动方法，将含孔柱壳弹性波散射问题化成一系列边值问题解的迭加，给出分析求解本问题的半解析方法。

In this paper, the method of wave field extrapolation and decomposition of seismic compound wave in viscoeleastic medium is presented, based on wave equation.

从粘弹性波动方程出发，建立了一种地震散射波场纵横向高分辨波场外推方法。

Using the method we calculate the 〓 elasticdifferential scattering cross section, excitation differential scattering crosssection, and excitation cross section of electron collision with 〓 We transform the electron and molecule problem into electron problemby Born-Oppenheimer approximate. Mr Rossi, Dr. the Flinders University ofSouth Australia, calculated electron collision with molecule, but theexchange term he used become bigger and bigger as incident energyincreases, it is unreasonable, besides, the potential of electron and nucleus heused is somewhat rough. At present we correct these two terms. The potentialconsists of static potential, exchange potential, polarization potential.

电子与分子的碰撞过程的相互作用势主要是由静态势、交换势和极化势三部分决定的，这里对这三部分在动量空间中进行分波展开，推导出易于计算的表达形式，根据这些公式，并参考Rossi的弹性碰撞程序编写了计算电子与分子碰撞激发截面的程序，利用程序计算出势能矩阵元，通过求解Lippmann-Schwinger方程求得T矩阵元，便可求得散射截面。

Heat conduction, viscous friction, elastic hysteresis, and scattering are four different mechanisms which lead to

热传导、粘滞磨擦、弹性滞后和散射是引起哪种现象的四种不同的机理？

Consequently, it is necessary to study elastic wave scattering and vibration localization in structures.

为此，有必要研究结构中弹性波散射与振动局部化问题。

The elastic wave scattering of a cylinder with inhomogeneous interface properties is studied by use of wave function expansion method.

该文研究了这一问题，通过沿周向的离散化将弹性波散射的边界条件归结为一个超定线性代数方程组。

New technique, which is elastic resonance scattering in inverse kinematics, has been used in recent experiments with radioactive ion beam.

利用新的实验技术－逆运动学弹性共振散射，对9He核进行研究，给出了共振态的自旋宇称可能的取值范围。

Elastic wave scattering and dynamic stress concentration in circular cylindrical shells with a hole are studied.

研究了含孔柱壳结构中弹性波散射与动应力集中问题。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了