散射

On the other hand, with the purpose of fuzzy feature extraction and fuzzy classification device design, the undulatory property of maximum and minimum scattering power corresponding respectively to the maximum and minimum eigen-polarization has been investigated in frequency domain. Furthermore, the anisotropy polarization degree of target, which is determined by both maximum and minimum scattering power of target, has been studied; meanwhile, the dynamic changing characteristic of eigen-polarization on Poincare polarization sphere has been investigated by means of the conception of polarization frequency stability, the research result shows that PSD value has a big jump near π, forming a sharp pulse, and different target has their individual distribution property of PSD pulse.

另外，围绕目标模糊特征提取及模糊分类器的设计，研究了目标最大、最小本征极化所对应的目标最大、最小散射能量随观测频率的起伏特性，考察了由目标最大、最小散射能量共同决定的目标的各向异性极化程度；同时，采用极化频率稳定度的概念，研究了本征极化在Poincare极化球面上的动态变化特性，在最大、最小散射能量相等的频率点上，PSD曲线呈现为幅度接近π值的尖锐脉冲，反映了目标极化散射结构对这一频率跳变极为敏感，但不同目标的这种PSD曲线特征又有很大的不同。

Backward single and double scattering arecompletely polarized but the decorrelation between their phases produces unpolarizedcomponent in total scattering light.Enhanced backscatterig is unpolarized.

后向的单次散射和二次散射光基本上是完全偏振的，它们的相同偏振分量之间由于缺乏固定的位相关联，而在总散射光中产生了明显的非偏振成分，增强后向散射是非偏振的。

But using infrared CCD, which has little scattering light, strong penetration ability, can improve image quality greatly. This paper analyzes the effects on surveillance by Rayleigh scattering, Mie scattering and unselective scattering theoretically. In addition it discusses the relation between transmission coefficient, reflection coefficient and wavelength of infrared CCD.

而采用散射光小，穿透能力强的红外CCD，则可以显著改善图象质量，从理论上分析了Rayleigh散射，Mie散射，无选择散射对监测的影响，讨论了红外波段CCD的反射系数、透射系数与波长的关系。

A dual-wavelength resonance light scattering ratiometric method based on the interaction between bromothymol blue and cetylpyridinium bromide was developed for the determination of CPB.

在pH 1.5的乙酸钠-HC l缓冲溶液中，CPB本身的共振光散射很弱，BTB有一定的共振光强度，加入CPB后BTB的共振光信号显著增强，最大散射峰位于523 nm，且散射光强度与CPB的浓度呈线性关系，可以通过单波长共振光散射法检测CPB，CPB质量浓度的线性范围和检出限分别为0.05~0.60 mg/L和42μg/L。

The optical characteristic value Sn is used to evalute intensity distribution of light scattering according to statistical point of view. Using novel semiconductor laser, fiber collimation technique and etc, laser scattering surface roughometer has been developed.

从几何光学和物理光学的观点出发，分析了光散射法测量表面粗糙度的机理，所建立的镜面模型和衍射模型说明包括中心反射光斑和其两翼散射光光能分布和表面粗糙度之间存在着定量的关系；从概率统计出发，确立以光学散射特征值Sn来作为恒量粗糙表面散射光带光能分布的依据。

By assuming that the scattered radiation tends to be a spatially slow-varying function, the scatter components at LOR blocked by each stopper can be estimated and the whole scattered sinogram can be recovered using interpolation from these local measurements.

在假设散射分布为一缓慢变化函数的前提下，根据两次妇描与空气妇描的资讯，可以求得被档块阻档部份的散射分率，并利用cubic spline内插法回复出整个散射分布，以达到散射矫正之目的。

Vadim Backman, PhD, a professor of biomedical engineering at Northwestern University in Evanston, Illinois, and colleagues, recently developed the 2 complementary optical techniques that were used in the study. The 4-dimensional elastic light-scattering spectroscopy (4D-ELF) and low-coherence enhanced backscattering spectroscopy use the elastic light-scattering signals from tissue that exhibit characteristic structure-dependent signatures in wavelength and scattering angle, explain the researchers in their paper.

伊利诺斯州埃文斯顿西北学的Vadim Backman生物医学工程博士与其同事，在此研究中应用最近发展的两项互补式光学技术，四维弹性光散射光谱（4D-ELF）与低相干散射增强光谱，运用组织中特殊结构表现的波长、与散射角度的弹性光散射信号来解释这项研究。

Vadim Backman, PhD, a professor of biomedical engineering at Northwestern University in Evanston, Illinois, and colleagues, recently developed the 2 complementary optical techniques that were used in the study. The 4-dimensional elastic light-scattering spectroscopy (4D-ELF) and low-coherence enhanced backscattering spectroscopy use the elastic light-scattering signals from tissue that exhibit characteristic structure-dependent signatures in wavelength and scattering angle, explain the researchers in their paper.

伊利诺斯州埃文斯顿西北大学的Vadim Backman生物医学工程博士与其同事，在此研究中应用最近发展的两项互补式光学技术，四维弹性光散射光谱（4D-ELF）与低相干散射增强光谱，运用组织中特殊结构表现的波长、与散射角度的弹性光散射信号来解释这项研究。

It is considered that there are four contributions to the nonspecular scattering field from each interface, the scattered power is not simply estimated as the sum of the nonspecular scattering from each interface, it is treated by dynamical diffraction method through multiplying a transmission factor before adding the scattering amplitude, the transmission factor is calculated by the recursive method.

每个界面考虑有四支散射波的贡献，计算总的散射强度时，没有简单的将各界面散射振幅相干叠加，而是用动力学处理方法将每只散射波乘上一个出射因子再叠加，出射因子是由动力学中的迭代方法计算的。

The 1D wave equation inverse scattering problem includes many proce- dures such as time-depth conversion,Z transform,1D spectral fac- torization,reflection coefficient and transmission coefficient,et...

三维波动方程逆散射的关键环节可类比于一维波动方程反问题，一维波动方程逆散射中的时深转换、Z变换、一维谱分解和反射与透射系数等环节，在多维波动方程逆散射或速度横向变化介质逆散射的研究中，被替换为射线坐标系、单程波算子、基于Witt积的多维谱分解和反射与透射算子的平面波响应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。