矢量计算

The physical model of polarizing beam coupling and splitting system using altazimuth coude telescope is built up based on Mueller matrix and Stokes vector. The phenomena of the decreasing of the receiving efficiency are successfully explained by this model. Three dynamic phase compensation solutions are proposed: 1 Two quarter-wave plates are rotated to compensate the phase of the laser.

针对这个问题，建立了地平式折轴望远镜的共孔径偏振耦合分光模型，用Stokes矢量和Mueller矩阵分析了在望远镜旋转过程中激光偏振态的变化，数值模拟计算了望远镜处于不同方位角和天顶角时的偏振耦合分光效率，解释了实验中观察到的望远镜旋转导致偏振耦合分光效率退化的现象。

It is presented to calculate the complex index,the complex E vector and the complex angle of refraction of evanescent wave in crystal.

本文研究了晶体界面上的全反射。我们如何计算迅衰波的复折射率、复折射角和复电场矢量。

Proposed a new method of determining the cell thickness and the twist angle of twisted nematic liquid crystal cells, a quarter-wave plate was inserted between the liquid crystal cell and the analyzer, a stepper motor rotated the Retarder by , and measured the light intensity of every modulated point, solved the stokes parameters of polarization light exiting from the liquid crystal cell using Fourier analysis method, thereby determining the cell thickness and the twist angle.

本文提出了一种测量扭曲向列相液晶盒盒厚与扭曲角的新方法，在液晶盒和检偏器之间放置四分之一波片，通过旋转此四分之一波片，测量各个调制点的光强，用傅里叶分析法计算线偏振光穿过液晶盒后的stokes矢量，从而求出液晶盒盒厚以及扭曲角。

The invention is characterised in that the motion vector is computed from mathematical data derived from the synthesised script and defining the apparent motion of the different objects constituting the scene subject of the sequence.

本发明的特征在于该运动矢量是从推导自该合成脚本计算而得，并确定构成该序列的场景主体的不同对象的视在运动。

The process and result of the deriving provide theoretic basis for measurement of vector magnetic field based on magnetic.

这些推导与计算结果为利用磁光效应测量矢量磁场提供了理论依据。

The process and result of the deriving provide theoretic basis for measurement of vector magnetic field based on magnetic-optic effects.

这些推导与计算结果为利用磁光效应测量矢量磁场提供了理论依据。

The kinematics of precision centrifuge isanalyzed in Chapter 2 adopting Homogeneous transformation and vector analysis.The calculating formulae of centripetal acceleration generated by precision centrifugeand acceleration acting on input axis, output axis and pendulous axis of accelerometerare deduced in theory under various conditions.

论文第2章首先用齐次变换法和矢量分析法对精密离心机的运动学进行了分析，从理论上推导出离心机产生的向心加速度的计算公式，以及各种条件下作用在加速度计输入轴、输出轴和摆轴上的加速度。

Through complex procedure, a characteristic equation of the rigorous solution is obtained.

经过数学计算，求得了左手材料阶跃型光纤矢量解的特征方程。

It used chebyshev polynomials to calculate sine function for improving its accuracy. It adopted optimized null vector distribution strategy to decrease switching times and switching current.

其采用Chebyshev多项式计算三角函数，提高了运算精度；采用零矢量象限间交错分布的优化策略，以减小开关次数，降低开关电流。

From the molecular current viewpoint, the magnetic vector potential was employed to obtain the analytical the magnet field distribution expressed by complete elliptic integral for axially polarized permanent magnet ring.

从永磁体的分子电流观点出发，应用矢量磁位法，对轴向均匀充磁的永磁环，建立用完全椭回积分表示的永磁环外部空间磁势和磁场分布的解析计算表达式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。