查询词典 operator equation

Where the first term in the above equation refers to a conservative force, the second to a dissipative force and the third to a random force.

第一项是保守力，第二项是耗散力，第三项是随机力。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

The usual nonlinear estimation and two steps estimations method were used to estimate the consociation equation set model method of duality standing tree volume model.

在联立二元立木材积模型的估计中，分别采用了通常非线性估计方法和两步估计方法进行研究。

On one hand, a new method based on Linear-VariantCoefficient-Difference-Equation for the indication of moving weak target with constant acceleration is proposed.

第一章为绪论，简述了本文的研究背景，对目标检测与识别研究的发展动态进行了综述，并指出了本文的主要研究工作。

Is the well-known equation for velocity under constant acceleration.

就是众所周知的恒加速度的速度方程。

In the area where the intensity of the image is changed small the image is smoothed by the heat equation whose conduction coefficient is constant.

在图像的角点位置上，扩散速度趋于零，在线条点位置上，扩散速度由梯度的模值来决定，并在与梯度正交的方向上进行平滑；在灰度变化不大的区域上，采用传导系数为常数的热方程进行平滑。

The variation of the return rate constant k with different absolute temperature T deviates Arrhenius empiric equation.

反应速率常数随绝对温度的变化基本上符合阿累尼乌斯定理。网格点按所考虑的未知量以脚标k来计数。

The reaction rate constant and its term of validity at room temperature was calculated by Arrhenius equation.

结果依达拉奉和注射剂的含量下降符合一级动力学模型，有关物质增加符合零极动力学模型。

Analytical solution of Smoluchowski equation, which diffusive term is constant and potential is Harmonic Oscillator form, is obtained.

给出了扩散项为常数，漂移项为谐振子位势形式的Smoluchowski方程的解析解。

The constant term of the characteristic equation was criteria for static stability. Effects of major aerodynamic derivatives on static stability were discussed.

以状态方程作为描述地效翼船的数学模型，研究了地效翼船在飞行状态下的纵向操纵性与稳定性。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。