查询词典 wave theory

A rigorous coupled wave theory for the Bragg diffraction of a Gaussian beam in the uniaxial crystal is derived and a group of rigorous coupled wave equations and diffraction efficiency formula are obtained in terms of the proper coordinate transformation and Riemann method .

利用适当的坐标变换和黎曼方法建立了高斯光束在单轴晶体中布拉格衍射的严格的耦合波理论，获得了一组严格的耦合波方程和衍射效率计算公式，讨论了衍射效率随折射率调制量的关系以及波长选择性和角度选择性，同时分析了衍射效率对再现光宽度的要求。

He founded the theory of functions of a complex variable and made contributions to the mathematical theory of elasticity and the wave theory of light.

他也是复变函数论的创始者，并对数学弹性理论及光波理论做出贡献

In optics we have to decide in favour of the wave theory against the corpuscular theory of light.

在光学中我们赞成光的波动说，而反对光的微粒说。

Nevertheless, if such an experiment could be devised it would be crucial in deciding between the wave theory and the corpuscular theory of light.

可是，如果能想出这样一个实验，就能对光的波动说和微粒说下一个判决性的结论了。

We have seen that the corpuscular theory explains many of the observed facts. Is the wave theory also able to do this?

我们已经知道微粒说解释了许多已观察到的现象，光的波动说也能做到这一点吗？

The essential assumption of the wave theory of light is that different wave-lengths correspond to different colours.

光的波动说的主要假定是：各自的色有各自的波长。

Based on Kogelnik's one-dimensional coupled-wave theory and dispersed Fourier transform, the diffractive characteristic of two pieces of volume phase gratings, which are cascaded and having orthogonal grating vectors for the continuous-wave laser beam, is analyzed.

利用Kogelnik一维耦合波理论，以及离散傅里叶变换，分析光栅矢量相互正交，且串联级联放置的两透射型体相位光栅对空域任意分布的连续激光光束的衍射特性；讨论其对入射光束的空间低通滤波性能，并具体模拟其对畸变高斯光束空间低通滤波的效果。

Travelling wave theory, its propagation on transmission lines and main factors impacting the correct recognition of the arrival of travelling wave is also discussed.

在此基础上，选择了用于实现距离保护的各个逻辑模块的算法，给出整体优化的保护算法方案。

However, by assuming all wave energy is concentrated in one frequency component rather than broad spectrum of ocean environment, regular wave theory gives an unrepresentative dynamic response.

该文阐述了新波浪理论的基本概念，介绍了一种新型的极限入射波浪模型，该模型考虑了天然海浪的随机性、谱性和方向性。

According to the appearance that the gas in soil can effect the propagate of stress wave, and combine with some test conclusions in three—phase saturated soil under explosion wave, theory of mixture is applied in this paper and the dynamic analysis model and constitutive relation are built.

根据土中气体的存在对应力波的传播有显著影响的现象，以三相饱和土为研究对象，结合三相饱和土在爆炸载荷作用下的有关试验结论，以混合物理论为基础建立动力分析模型和本构关系，在此基础上得到用于三相饱和土的有限元方程，计算结果揭示了动力固结法的若干特点。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。