散射

The modeling method of ultraviolet scattering characteristics for space satellites was studied according to background radiation environment.

根据目标所处的背景辐射环境，对空间卫星的紫外散射特性进行建模方法研究。

This paper presents a fast algorithm based on the measured equation of invariance.Conformal meshes are made along the surface of two-dimensional scatterer.Renumbering of nodes changed the original sparse matrix into band one,and the consumption of computer memory and CPU time decrease from O(N2) to O.Via this new algorithm,electrically large problem can now be rapidly solved.

提要 本文基于不变性测试方程法提出一种快速算法，在二维散射体表面建立共形差分网格后，通过对节点的重新排序，将原问题中的稀疏矩阵变换为带状稀疏阵，从而使占用的计算机内存和计算时间均由O(N2)下降为O，可以解决原来无法计算的问题。

Using a method for storing the large-scale sparse matrix with varying band width, Cholesky decomposition, Green function and normalized least square fitting inversion, the paper improved the computing accuracy and efficiency in imaging calculation.

利用有限元方法实现了井间电磁成像，为了求取散射电磁场的积分方程组，运用了处理大型对称变带宽方程组的 Cholesky 分解法，反演时使用了格林函数和最小二乘法，既提高了反演速度又提高了反演质量。

And the only allowed Raman band in the first-order diamond spectrum near 1332 cm^(-1) decreases and can't be observed in the micro-Raman spectrum of the film. Three Raman band near 1147 cm^(-1), 1364 cm^(-1) and 1538 cm^(-1) lie in the spectrum which are similar to the reported nano-diamond films.

在该薄膜一阶微显微拉曼光谱中，1332 cm^(-1)附近微晶金刚石的一阶特征拉曼峰减弱消失，可明显观测到的三个拉曼散射峰分别位于1147 cm^(-1)、1364 cm^(-1)和1538 cm^(-1)，与己报导的纳米金刚石拉曼光谱类似。

The higher order interpolatory vector basis function combined with MLFMM is applied to analysis the electromagnetic scattering and radiation of electrical-largetargets.

研究开发了一套可视化的实用电磁仿真工具软件，用于分析电大尺寸目标的电磁散射特性。

This may be attributed to the multiple scattering effect of the medium.

这可能是由于介质的多次散射作用的结果。

The coexistence curves and light scattering data for a critical solution of benzonitrile + octane have been reported. The critical exponents relating to the difference in the density variables between two coexisting phasesβ, the osmotic compressibilityγ, and the correlation length v have been deduced and the values were consistent with the 3D-Ising value in the range close to the critical point. The experimental results of the coexistence curves have also been analyzed to examine the Wegner correction terms and the behavior of the diameter of the coexistence curves.

用折射率法和不同角度的光散射法测量了苯甲腈+正辛烷二元体系在临界温度附近的液-液共存曲线和一相区不同温度下的渗透压缩系数及关联长度，得到与共存曲线相关的临界指数β，与渗透压缩系数相关的的临界指数γ和与关联长度相关的的临界指数γ，发现在近临界点体系符合3D-Ising模型，讨论了共存曲线直径和Wagner校正项。

For scattering state, its wave function should tend to the spherical Bessel function with a certain phase shift outside the interaction region.

对于散射态，其波函数在相互作用区域以外，应趋近于带有相移的球贝塞尔函数。

Phase contrast studies of biological specimens with the x-ray microscope at BESSY .

孙怡，朱佩平，于健，陈欣，"X射线衍射增强成像中吸收、折射以及散射衬度的计算层析"，光学学报 27，

Chapter 3 introduces some methods seeking exact solutions for the nonlinear evolution equation, such as inverse scattering method, symmetry reduction method, Backlund transformation, Darboux transformation , Hirota bilinear method, Painleve analysis method, AC = BD model, and so on.

第三章简要介绍了非线性发展方程的若干求解方法，如反散射方法，对称与微分方程约化，Backlund变换和Darboux变换方法，Hirota双线性方法，Painleve奇性分析法，AC=BD框架下的精确求解等。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。