查询词典 Bragg

The effect both of the initial ratio of the intensity and of the recording angles of writing waves on the anisotropic Bragg diffraction properties of volume gratings was discussed.

结果表明：记录光入射角和记录光初始光强比均对体光栅的各向异性衍射具有选择性；与此相比，记录光入射角和记录光初始光强比对于体光栅各向同性衍射不具备选择性。

The feasibility of the ACT for controlling the ODS withthe perturbation-corrupted control parameter is demonstrated with thecomputer simulation of controlling the Bragg diffraction acousto-optic system.

文中先以控制已知动力学表述的布拉格声光系统为例对自适应参考模型控制技术之可行性进行了计算机仿真示例证明。

The impact of the thickness of volume H-PDLC grating on the wavelength selectivity of Bragg diffraction are simulated numerically, as well as the theoretic relationships among the refractive index modulation, spatial frequency and the H-PDLC diffraction efficiency.

计算机模拟了体光栅厚度对于布拉格衍射波长选择性的影响，以及折射率调制深度、空间频率和H-PDLC光栅衍射效率的关系。

AOTF operates on the extraordinary Bragg diffraction.

第二，本文详细介绍了声光可调滤波器的工作原理。

According to the principle of A-O interaction and quartz′s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd∶YAG laser cavity between mirror and Q-switch, AO Q-switch′s Bragg diffraction efficiency formula is put out theoretically. Consequently, the conclusion has been drawn by calculating simulation that the ability of a single AO Q-switch′s switching CW Nd∶YAG laser is increased.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd∶YAG激光的能力。

According to the principle of A-O interaction and quartz＇s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd : YAG laser cavity between mirror and Q-switch, AO Q-switch＇s Bragg diffraction efficiency formula is put out theoretically.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd：YAG激光的能力。

I had visited General Shelton not long before at Fort Bragg, after a plane crash at nearby Pope Air Force Base had killed several servicemen.

当时有一架飞机在附近的波普空军基地失事，死了好几名军人。

Based onthis Bragg's law and theory of optical thin film,the formula introduced in this chapter havebeen illustrated are useful for deducing the thickness of the ultra-thin layer.

论文第四章讨论了多层膜的小角x射线衍射谱的理论分析方法，导出了在超薄膜下进行厚度测量的十分有意义的单层膜厚度测量方法。

A quantitative analysis using computer simulation based on the modified Bragg's law and the optical multilayer theory was used to reproduce the diffraction rocking curves which fitted very well with the experimental ones, and a method to measure the structural parameters of Ge〓Si〓/Si superlattices was set up.

用光学多层膜理论对谱线作计算模拟的结果和实验非常一致，并在此基础上建立了一套同小角衍射测量Ge〓Si〓/Si超晶格结构参数的方法。

It is said that Bragg is a romantic place.

据说，这是布拉格一个浪漫的所在。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。