查询词典 diffraction

The dissertation presents a number of methods and theory involving in diffraction integral, Fourier transform, directly solving differential wave equation, vector analysis, which can be used to study ultrashort pulsed beams propagating in free space, linear dispersive

现将本论文所得主要结论总结如下：基于瑞利—索末菲衍射积分、角谱法和复解析信号法，推导出了等束腰宽度超短脉冲高斯光束在自由空间的严格的传输方程和傅里叶谱，适用于几个光周期甚至一个光周期以下的超短脉冲光束和大衍射角情形，而不产生空间奇异

The effects of the mass frac- tion of converter slag on crystallization behavior were studied by scanning electron microscopy, X-ray diffraction and infrared spectrum.

利用X射线衍射、扫描电镜和红外光谱分析研究了转炉渣含量变化对微晶玻璃析晶行为的影响。

Based on the Fraunhofer diffraction theory and a microlens,a high-performance complex optical system for a digital sun sensor is designed.

以夫朗禾费衍射理论为基础，结合微透镜，设计了一种高性能的数字式太阳敏感器复合光学系统。

The precision of noncontacting measurement of thread ′s diameter, in which laser is used as light source, can be improved based on Fraunhofer diffraction and Babinet theory.

引言采用传统的称重法测量细丝直径，不能适应提高产品质量和生产效率的要求。这种要求，通过对细丝衍射花样的测量可以实现 [1] 。

The article in the light of international and domestic situation, introduces several universal testing methods of the particles , and highlighted on Fraunhofer diffraction theory and Mie light scattering theory granularity about test methods, as well as relevant theoretical basis.

文章根据国内外现状，介绍了目前普遍适用的几种颗粒物检测方法，并重点介绍了基于Fraunhofer衍射理论和Mie光散射理论的粒度测试方法，以及相关的理论基础。

The difference of Fraunhofer diffraction between Information Optics and Physical Optics is analysed, the consistence of which is pointed out about one single object.

分析信息光学和物理光学中夫朗和费衍射的差别，指出在研究单个物体的夫朗和费衍射二者的一致性，根据普适的夫朗和费衍射的定义，导出夫朗和费衍射的近似条件。

According to the angular spectrum theory, the Fraunhofer diffraction light intensity distribution

根据衍射角谱理论，利用计算机数值计算了由正三角形和正六边形组成的衍射平面的夫琅和费衍射光强分布，分析并比较了两者的衍射光强分布特点，并用实验验证了上述数值计算的正确性。

According to the angular spectrum theory, the Fraunhofer diffraction light intensity distribution of the equilateral triangle and the equilateral hexagon is calculated by computer, the characteristics of their light intensity distribution is analyzed and contrasted, and it is proved by experiments.

根据衍射角谱理论，利用计算机数值计算了由正三角形和正六边形组成的衍射平面的夫琅和费衍射光强分布，分析并比较了两者的衍射光强分布特点，并用实验验证了上述数值计算的正确性。

The analysis of the Fraunhofer diffraction pattern of the twin rectangle aperture

利用Mathematica软件，通过夫朗和费衍射公式计算双矩孔的衍射光强，并且绘制出了衍射图样。

This paper introduces the software module design of laser particle size measu rment system using Fraunhofer diffraction principle.All the application program is GUI and adopts the mechanism of event driven and faced to object.

该模块设计主要采用了面向对象的程序设计方法，应用程序全部为图形用户界面，使系统具有良好的可扩充性和可持续发展性。

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。