系统地分析了未变质煤的X 射线衍射图。
The X-ray diffraction patterns of unmetamorphosed coals have been systematically analyzed.
劳埃衍射图进一步证明，样品是高质量单晶。
Laue back diffraction patterns confirmed the good quality of the samples.
本文介绍为分析多相体系的多晶电子衍射图而设计编写的计算机程序。
In this paper a computer program was described, which is designed for analysis of polycrystalline electron diffraction pattern of a multi-phase system.
引入空间群消光规律，用计算机模拟电子衍射图，提出选取约化四边形的新方法。
Adopting the space-group extinction rule and simulating the electron diffraction pattern with computer, this paper proposed a new method for selecting the reduced quadrangle.
测定了晶体下部与上部的X射线衍射图（XRD）、激发光谱、荧光光谱以及声子边带谱。
The X-ray diffraction (XRD), excitation, emission and phonon side band spectra of the upper and lower parts of crystals were measured.
通过衍射图可以看出出射光束的发散程度随着角度误差的增加而增加，直至完全分离成六束光束。
The patterns show that divergence of the emerging beam increases with the dihedral angle offset up to completely separate to six beams;
提出了应用非晶强度曲线和多重峰分离程序，根据X射线衍射图进行4A分子筛结晶度测定的方法。
A method for the measurement of crystallinity of Zeolite 4a is presented. This method USES an amorphous intensity curve and multiple peaks separation program based on XRD pattern.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
根据X射线衍射图研究了直接还原碳化温度及时间对反应产物的影响，用扫描电镜观察了粉末颗粒形貌和粒度分布。
The influence of carbonizing temperature and time was investigated by XRD in this study. The morphology and particle distribution of the powder were observed by SEM.
本文根据二元振幅衍射图的衍射原理提出了实现点阵全息图的菲涅尔加密的方法，并在此基础上提出了相应的再现系统。
A method of making Fresnel encrypted dot matrix holograms is presented on the basis of the diffraction theory of binary amplitude diffractogram.
使用该涂料所复制的彩虹全息图衍射效率可达到6.8%。
The diffraction efficiency was 6.8 % from the laser holography images recorded by the coating.
实验中制作出了高衍射效率和信噪比的体积全息光栅和反射全息图。
The holographic volume gratings and reflection holograms having high diffraction efficiencies and signal noise ratio are also fabricated in experiment.
说明傅里叶频谱面的滤波处理及编码光栅的衍射效率对图象输出信噪比的影响。
This is mainly influenced by the filtering process in Fourier plane and the low diffraction efficiency of the encoding grating.
利用耦合波理论分析了影响体积全息图的衍射效率的因素、体积全息图的角度选择性以及波长带宽等方面。
The factors which influence holography diffraction efficiency, the Angle selectivity of volume holography and wavelength bandwidth are analyzed with the coupled wave theory.
提出了一种基于色彩合成以及菲涅尔衍射原理，用计算机产生全息图并用数字方法再现彩色全息图的方法。
A method, which is based on the theories of color synthesizing and Fresnel diffraction, is proposed for computer generating hologram and numerical reconstructing color object.
本文介绍用稀释显影提高全息图衍射效率的方法。
A method of increasing the diffraction efficiency of hologram by using dilute development is presented.
本文应用模糊数学的多元决策理论，对漂白透射全息图的衍射效率进行综合决策。
A method employing the theory of fuzzy multifactorial decision to predict the diffraction efficiency of bleached transmission holograms is presented.
认为光纤象面全息图可以获得较高衍射效率和分辨率，并对此进行了实验验证。
It is verified experimentally that higher diffraction efficiency and resolution can be obtained by optical fiber image plane hologram.
对红外光学系统，用几何光线追迹得到点列图或用基尔霍夫衍射理论计算得到点扩散函数。
For infrared optical systems a point spread function is calculated in terms of the spot diagram obtained through geometrical ray trace or the theory of Kirchhoff diffraction.
射线衍射谱图显示接枝后亚麻纤维的结晶度下降。
X-ray diffraction spectrums show that the crystal degree of grafted flax has turned smaller than general flax.
由于对该全息图直接计算得到的重构像，受零级衍射光斑和散斑噪声的影响较大，使得重构像质量难以令人满意。
The quality of the reconstructed image directly calculated from the recorded hologram is unsatisfactory because of the presence of the zero-order diffraction and the speckle noise.
本文提出了在高能电子衍射实验中，当加速电压改变时利用菊池图测量电子波长变化值的方法。
The method to test the variations of the wavelength of electrons using Kikuchi maps when the accelerating voltage is changed in the HEED experiment is put forward.
本文在现有的尖劈衍射解的基础上给出尖劈边缘附近声场的清晰图象，并深入地讨论它们的物理意义。
Patterns of the diffracted field around a wedge are given and their physical meanings are discussed in depth, based upon some existing solutions to edge-diffraction problems.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
根据此原理，建立了三光束全息光存储系统，在红光记录全息图的同时加入辅助紫光，可以使全息图衍射效率及衍射像的像质得到提高。
Base on this principle, a three-beam holography system is set up. The diffraction efficiency and the quality of the diffraction image are shown to be greatly improved by the auxiliary violet light.
所得结构图像的分辨本领将优于电子显微图，而有可能接近于衍射分辨极限。
The resolution of the structure image so obtained may be higher than that of the original electron micrographs and may approach the diffraction limit.
实验表明，反射全息图的衍射光谱呈现出明显的非对称性，并伴随着一系列次峰的出现。
The experiments has shown that the spectrum of reflection hologram presents obvious non-symmetry, and is accompanied with a series of sub-peaks.
实验收集三个主要晶面方向(111)，(400)与(220)，以及衍射摇摆曲线不同位置的单色光形貌图。
Images of (111), (400) and (220) lattice faces as well as those at different places on rocking curves were collected.
所得结构图像的分辨本领将优于电子显微图，而有可能接近于衍射分辨极限。
The resolution of the structure image so obtained may be higher than that of the original el…
所得结构图像的分辨本领将优于电子显微图，而有可能接近于衍射分辨极限。
The resolution of the structure image so obtained may be higher than that of the original el…
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