阻尼振荡

Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

"Damping",The statement for damped oscillation in regardless of time scale, is called damping ratio.

"，"在忽略时间量状况下，描述的阻尼振荡，称为阻尼比。

Signal integrity problems mainly refers to the signal overshoot and damped oscillation, which is mainly driven IC transition amplitude and a function of time.

信号完整性问题主要指信号的过冲和阻尼振荡现象，它们主要是IC驱动幅度和跳变时间的函数。

The damped oscillation circuit tends to emerge in circuit analysis. Due to its wide application in various leading engineering fields, it is necessary to discuss about the characteristics of this category of circuit.

在电路分析中经常会遇到一些阻尼振荡电路，由于这类电路在高压断路器开断能力测试、受控热核研究等许多重要的工程领域有着极为广泛的应用，因此有必要对此类电路的特性加以讨论研究。

In this region, though the particle has been over the springpoint, the particle can still be kept in a steady damped oscillation but not flying lost predicted by the Davis theory.

首次从理论上证实了颗粒在电动悬浮天平中的状态除了静止悬浮和振荡飞失之外，还存在一个过渡区，此时颗粒虽然越过了Davis理论定义的弹跳点，但仍能保持稳定的阻尼振荡，而非Davis理论所预测的飞失状态。

By analyzing the pulse transformer and ideal drive electric current wave, we try to improve the rate of changing-over, discuss the damped oscillation, point out existing circuit design error, and working a new circuit design which can reduce the common circuit circulation and switch loss.

通过对脉冲变压器及理想激励电流波形的分析，如何提高转换速率，阻尼振荡予以讨论，指出目前存在的设计误区，做出减少共态导通与开关损耗的新设计。

Also,the pulse velocity of drilling fluid declined with increase of gas content.The drilling fluid pulse transmitting up and down along well bore had refraction and reflection components similar to damped oscillation at the boundary of system.

脉冲传输速度对含气量非常敏感，随着含气量的增加，传输速度迅速下降；沿井筒往复传播的钻井液脉冲在系统边界处将产生折射和反射，类似于阻尼振荡；钻井液粘度是影响脉冲信号衰减速度的一个重要因素。

The results show that for weak driving, the population difference displays damping coherent oscillation and/or damping quantum beat, depending on the initial preparation. The coherence exhibits damped oscillation with Rabi frequency.

结果表明：当系统和环境的耦合较弱时，变化初始条件，粒子束翻转是阻尼的相干振荡，相干性以Rabi频率阻尼振荡。

In the first part of the paper, the light source and its light output measurements are described. The second part is concerned with some investigations of ruby and Nd-doped glass laser s, pumped with electrodeless discharge tubes.

文章的前一部分包括光源的装置及特性的测量等，第二部分的内容为利用这种光源作红宝石与钕玻璃激光器的激发光源时，对于激光器的光输出特性的研究结果，其中包括阈值的测定，尖峯的观察、单模振荡和规则的阻尼振荡等。

In the first part of the paper, the light source and its light output measurements are described. The second part is concerned with some investigations of ruby and Nd-doped glass lasers, pumped with electrodeless discharge tubes.

文章的前一部分包括光源的装置及特性的测量等，第二部分的内容为利用这种光源作红宝石与钕玻璃激光器的激发光源时，对于激光器的光输出特性的研究结果，其中包括阈值的测定，尖峯的观察、单模振荡和规则的阻尼振荡等。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。