查询词典 scattering

In this paper,the singularity in the integrand of electrical field integral equation for 3-dimensional vector fields scattering is first analyzed.

本文研究了电场积分方程中被积函数奇异性的处理方法，特别是三维矢量散射分析中出现的高阶奇异性，给出了两种解决积分方程奇异性的数值方法。

Dept.of Microwave Eng.,UEST of China,Chengdu 610054,ChinaAbstract:In this paper,the singularity in the integrand of electrical field integral equation for 3-dimensional vector fields scattering is first analyzed.

本文研究了电场积分方程中被积函数奇异性的处理方法，特别是三维矢量散射分析中出现的高阶奇异性，给出了两种解决积分方程奇异性的数值方法。

These distributions show that the electrons lie mainly in the scattering plane which are observered to be preferentially emitted in the forward direction, lying between 0 and projectile velocity Vp. The distributions also display the typical two-fingered structure with a local minimum on internuclear axis.

结果表明：电子主要集中在散射平面内；在散射平面内，电子速度分布介于0和入射炮弹速度Vp之间且在炮弹和靶核核间轴处有一极小值，呈现出典型的双峰结构。

IR-retrieval also estimates more rainfall in the Intertropical Convergence Zone and less in the subtropics. The regional precipitation retrieval using microwave emission technique tends to be slightly larger than microwave scattering technique through the year.

纬度分布变化方面，靠近赤道的辐合带降雨量比其他方法高，而副热带区域比较低，随时间变化方面，则是倾向於呈现较大的季节变化。

Piecewise isometry; invariant measure; complexity; admissible cod-ing; periodicity; scattering

分片等距；不变测度；复杂性；可允许编码；周期性；扩散性

The inverse acoustic scattering problem is an important branch of the research of the inverse problems.

声波反散射问题是反问题研究领域的一个重要分支。

Our results are accordant with that of the perturbation based on the inverse scattering transformation.

我们所得结果，与前人用逆散射所得结果一致。

One is the theory of perturbation based on the inverse scattering transformation, which is essential method in searching the solution of soliton, so it have important academic meaning, however, the method is not easily understood and grasped because of its complicated line of thinking.

逆散射法是求孤子解的基本方法，这种微扰论有重要的学术意义，但它的思路迂回曲折，不太容易理解和掌握，因此实用上并不十分方便。

A scattering light sensor and an ionization chamber were simulated.

模拟了一个散射光感器和一个电离室。

Due to Bragg scattering, The stop band of the colloidal crystal is located at 580 nm and the colloidal crystal shows iridescence with green colour.

由于Bragg散射，该胶体晶带隙位于580 nm，在可见光区域产生明显的光子带隙而呈现出亮丽的绿色。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。