Mechanism on the effects of forced periodic oscillation operation has been discussed.
对强制周期操作效应的机理作了探讨。
It is found that periodic oscillation and chaotic motion are inlaid with each other and appear alternately.
周期振荡与混沌运动相互嵌套、交替出现。
The results show that the periodic oscillation of the immediate distortion is caused by the pulsed laser wave.
结果表明，激光的脉冲作用引起瞬时变形周期性振荡；
A typical low-level wind shear of thunderstorm activates long periodic oscillation of an aircraft, causing tracking deviation of the aircraft.
典型尺度的雷暴低空风切变以长周期振动频率激励飞机，使其偏离预计下滑航迹。
The correlation functions can be used as feedback signal to control the systems from chaos to steady state, chaos to periodic oscillation, or even from chaos to preset output.
用关联函数作为反馈，可使系统从混沌到定态或混沌态到周期振荡，甚至可以实现从混沌态到指定的定态输出。
On the assumption that the wind shear is sinusoidal, the effects of long periodic oscillation on the landing path of an aircraft were studied by computer calculation and with flight simulator.
在正弦风切变假定下，利用计算机计算和飞行模拟器模拟研究了长周期振动频率上下的正弦波风切变对飞机着陆航迹的影响。
La Nina is a natural 3-6-year cycle, and the cold stretch of a periodic thermal oscillation in ocean surface temperatures that occurs throughout the tropical Pacific.
拉尼娜每隔3到6年发生一次，太平洋热带地区海水温度会随之发生周期性的异常变冷。
Some sufficient conditions are obtained for the oscillation of first order neutral differential-difference equations with positive and negative periodic coefficients.
本文获得了一阶正负周期系数的中立型微分差分方程振动的充分条件。
Analytical approximate periods and periodic solutions to large amplitude oscillation of a simple pendulum are constructed using a new method.
构造了单摆大振幅振动的高精度解析逼近周期和周期解。
This paper mainly introduces and discusses the experimental results of the forced oscillation excited by a non-sinusoidal periodic driving force.
在非正弦周期性外力作用下受迫振动的实验结果，并十分清楚地显示了受迫振动的较为完整的图像。
If the pumping signal is the periodic square wave, the damped oscillation wave will be generated in the circuit.
在周期性方波激励下，电路中产生衰减振荡波形。
Analyzing the sequence of the parameters by the power and cross spectra yields main periodic changes of quasi-two-week oscillation.
对三参数序列应用功率谱和交叉谱分析得出，其主要周期变化为准两周振荡。
Power System forced power oscillation is a kind of low frequency oscillation caused by persistent periodic small disturbance.
电力系统强迫功率振荡为持续的周期性小扰动所引起低频振荡现象。
Based on the stability of self-oscillation of thermoacoustic engine. models of periodic average and time-varied are investigated respectively.
从自激振荡的稳定性入手，分别讨论了热声网络的周期时均和时变数学模型。
Based on the stability of self-oscillation of thermoacoustic engine. models of periodic average and time-varied are investigated respectively.
从自激振荡的稳定性入手，分别讨论了热声网络的周期时均和时变数学模型。
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