查询词典 dispersion

It is generally difficult to get analytical solutions of the stochastic differential equation's water quality model. What is more, as to the issue like the initial boundary result of a convection-dispersion equation, it is even more difficult to change the random factors into the uncertainty.

NSFEM法是把Neumann展开式引入以解决矩阵求逆的效率问题，如果对每一次随机抽样，只需形成刚度矩阵，进行前代、回代以及矩阵乘和矩阵加减，而无需矩阵分解，则可大大减少工作量。

In this dissertation, we studied the monolayer dispersion of CuO, WO〓 and V〓O〓 on anatase.

本论文对CuO，WO〓和V〓O〓在二氧化钛上的单层分散进行了研究。

In addition,the dispersion relation and delay characteristics of the coupled mode in two different YIG films are studied by numerical analogue in the range of inclination angle from 5° to 20°.

本文研究了在倾斜静磁场作用下，双层YIG薄膜波导结构中静磁体波的传播特性，得到了其色散的特征方程，计算了磁场倾角从5°到20°范围内双层波导结构中静磁体波传播的色散关系和延迟特性。

According to dispersion relations, The relations of the incident angle, reflection angle and refraction angle equations with bicrystal parameters and wave vector are obtained respectively. The variation of the reflection angle and refraction angle with the incident angle for certain bicrystal parameters is presented by angle quations.

根据晶体的色散关系解出了入射角、反射角和折射角关于晶体参量及波矢的方程，并根据角度方程给出了在一定参量下反射角和折射角关于入射角变化的关系图，以图示的方法显示了光束在界面处的异常性质。

Among the characteristics of the system are elevated angular dispersion, homogenous coverage and a high sensibility.

最突出的特点是宽阔的覆盖角度和高灵敏度。16 欧姆的输入阻抗让系统搭配更灵活。

Information about spatial variation of lower degree components of the geomagnetic field is contained in angular dispersion of VGP.

虚磁极的角散布携带着地磁场低阶非轴向偶极子分量空间变化的信息。

Calculation of the dispersion with angular misalignment of grating pair compressor by ray-tracing method.

压缩器光栅不平行度对色散影响的光线追迹法研究。

When 527nm laser interacted with Al targets, the dispersion of angular distribution of scattered lights was serious.

激光辐照铝盘靶时，散射光能量分布的离散性较大。

The complete analytical form and analysis on angular dispersion formula of two-dimensional grating.

二维平面光栅角色散公式的完整解析形式及分析。

It is noted that the index of angular dispersion for both sexes was smaller,and the mean angular deviation was bigger,which was close to the mean angle by the circular distribution.

但需注意的是，经圆形分布分析，男、女性的角度离散程度指标r均较小，S较大。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。