shadowing effect 中文意思是什麼
shadowing effect
解釋
屏蔽效應-
From the model study of the fractal random rough surface, we acquire one dimensional ? two dimensional fractal random rough surface model with fractal theory ; 2. the calculation of the scattering field of light ; the establishment of the scattering light ’ intensity model, and the number calculation of the intensity distribute ; 3. the study on the laser radar cross section of one - dimensional fractal rough surface target ; and the number calculation of the scattering intensity of two - dimensional fractal the rough surface target ; 4. through shadowing effect, we analysis light scattering characteristic of fractal rough surface
本論文利用分形理論得到一維?二維分形隨機粗糙表面模型，研究光在一維?二維分形粗糙表面的光散射特性，主要從以下四個方面分析: 1 .自仿射分形隨機粗糙表面模型探討，採用分形理論得到一維?二維分形隨機粗糙表面模型; 2 .分形粗糙表面散射光場的計算和粗糙表面散射光強角分佈的模型建立和數值計算; 3 .一維分形粗糙表面目標的激光雷達後向散射截面lrcs研究和二維分形粗糙表面目標散射強度數值計算; 4 .引入遮蔽效應分析分形粗糙表面光散射特性。 -
If the macula degenerates, fluid and blood from abnormal blood vessels will cause image distortion or even a shadowing effect
如黃斑區出現病變，增生血管會滲出液體及血液，破壞黃斑區組織，令視力模糊，景物變形，甚至呈現黑影。 -
It is found that unlike drell - yan model, color dipole approach to drell - yan process needs no k factor and it describes nuclear shadowing effect well in p - a drell - yan process
另外，這一模型也能很好的描述p - a碰撞的drell - yan過程中的遮蔽效應。 -
In p - a drell - yan process, the incident quark will experience multiple collisions with different nucleons in the nucleus, which leads to the suppressed drell - yan cross section, in another words, the nuclear shadowing effect
在靶靜止系，對于p - a碰撞的drell - yan過程，入射夸克要與原子核中的不同核子發生多次碰撞，使得總的微分截面被壓低，這就是遮蔽效應。 -
Gribov combined the nonrelativistic glauber multiple collisions theory with quantum field theory and fe ynman diagram technique so that relativistic kinematics could be included. based on glauber - gribov theory, b. z. kopeliovich et. al. developed green function method to calculate the shadowing effect in p - a drell - yan process
Gribov將描述高能非相對論的多次碰撞的glauber理論與量子場論和費曼圖聯系了起來，從而glauber - gribov理論可以描述相對論情況下的多次散射，基於這一理論， b . z . kopeliovich等提出用格林函數方法計算p - a碰撞的drell - yan過程中的遮蔽效應。
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