The new image encryption algorithm was proposed based on multiple Fresnel diffraction transforms and phase encryption masks. 基于多重菲涅耳衍射变换和相位密码板,设计了一种新的图像加密计算方法。
The Stokes parameters were determined by measuring the multiple beam diffraction intensity. 通过测量多光束衍射强度,确定了斯托克斯参量。
From WAXD patterns, it could be found that polyamide prepared showed multiple diffraction peaks around 20 ℃ and apex diffraction peak in the lower angle which indicated the formation of layer-like crystalline structure. 进一步的WAXD研究又发现,聚酰胺在20℃附近区域出现多重衍射峰,同时在10℃以下的小角度区出现尖锐的衍射峰,说明形成了一种层状的液晶结构。
Structure analysis of ( znse/ cdse)/ znse/ gaas multiple quantum wells by X-ray double-crystal diffraction (ZnSe/Cdse)ZnSe/GaAs(001)多量子阱材料的X射线双晶衍
Analytic expressions for aperture output mode of a multiple pass ring resonator have been derived using ABCD matrices and diffraction integral function of multi element resonator. 利用多元件腔的衍射积分方程及光学ABCD定律,得出了多程环形腔小孔耦合输出模式的相关计算公式。
Computer optical element based on light-wave diffraction theory is through that etches on film base to produce relievo structure with two or multiple sidestep depths, and form pure phase and coaxial recurrence, so it has higher diffraction efficiency. 计算机光学元件基于光波衍射理论,通过在片基上刻蚀产生两个或多个台阶深度的浮雕结构,形成纯相位并同轴再现,使其具有极高的衍射效率。
The toughening mechanism and the physical and mechanical properties of the super-tough nylon 66 ( SL 004) toughened by multiple grafted polyolefins rubbers is introduced, and the SL 004 structure was characterized by SEM, DSC, DMA, X ray diffraction and so on. 介绍采用聚烯烃橡胶多元增韧的超韧尼龙66(SL-004)有关增韧机理和物理力学性能。并运用SEM、DSC、DMA、X&射线衍射等方法对其进行表征。
Experimental Research of X-ray Multiple Diffraction X射线多重衍射的一些实验研究
In this paper, the basic principle of x-ray multiple diffraction and the indexing process of multiple diffraction patterns were introduced. The method for observation of multiple diffraction by powder diffractometer was established. Some applications concerned with the effect of x-ray multiple diffraction were given shortly. 本文介绍了X射线多重衍射效应的起因,多重衍射图谱的指标化,给出了用普通X射线粉末衍射仪观测多重衍射效应的方法,并简要说明了多重衍射效应的应用。
By combination of DC reaction magnetron sputtering with multiple arc-plating, the superhard coating is deposited onto HSS. X-ray diffraction ( XRD) shows that the compound film exists in the form of hard crystalline phase. 本文采用DC反应磁控溅射和电弧离子镀相结合的方法在高速钢上沉积氮化碳-氮化钛复合膜,经X射线衍射分析,复合膜中存在a-C3N4和b-C3N4的硬质相。
Progress in X-ray multiple diffraction X射线多重衍射的进展
Effect of X-ray Multiple Diffraction X射线多重衍射效应
The phase intensity modulation transformation equation for single Zernike mode and that for multiple Zernike modes under the hypothesis of little phase distortion of wavefront are derived based on Kirchhoff diffraction theory. 根据基尔霍夫衍射定理,导出了单一模式以及小畸变近似条件下多个模式的相位-光强转换关系的方程。
The study indicates that the seismic wave from the karst cave reservoir slides back and forth along the cave edges to form multiple diffraction wave which behaves as strong and short reflection segments of shoestring in the seismic section; 研究表明:①溶洞型油气藏的地震波沿溶洞边缘往复滑行形成多次绕射波,在地震剖面上表现为串珠状强短反射段;
The dynamic programming model can weaken the effect of multiple, diffraction and other noises by choosing proper initial stacking-velocity function and the corresponding range. 动态规划模型通过选择适当的叠加速度函数初值及其相应的变化区间可减弱多次波、绕射波和其他形式干扰波的影响。
Intensity Distribution of Multiple Slits Electron Diffraction 电子多缝衍射强度分布