引入非线性动力学理论和混沌时间序列分析方法考察强震地面运动加速度时程的非线性特征。
The nonlinear dynamic theory and the chaotic time series analysis method were adopted to examine the nonlinear characteristics of strong earthquake ground motions in this paper.
很明显，这种技术只能在传递方和接受方拥有完全同步的耦合混沌系统时才可实现。
Obviously, this only works when the transmitter and receiver have are coupled so that they evolve in exactly the same way.
“混沌的人生不值得过”，苏格拉底在被审判时，大概就说了这句著名的话给陪审团听。
THE unexamined life is not worth living, or so Socrates famously told the jury at his trial.
当蔡氏电路用在混沌发生器时，仿真结果证实了提出的方法在跟踪和解调方面的能力。
Computer simulations, in which the Chuas circuit is used as the chaos generator, are presented to demonstrate the tracking ability and CSK demodulation of the proposed method.
考虑神经网络在训练大规模样品时易陷入局部极小，用梯度下降法与混沌优化方法相结合，使神经网络实现快速训练的同时，避免陷入局部极小。
Combining grading method with chaotic optimization, the neural network model achieves rapid training and avoids local minimum when there are a lot of samples to be trained.
算例表明，当混沌搜索的次数达到一定数量时，混合优化方法可以保证算法收敛到全局最优解，且计算效率比混沌优化方法有很大提高。
Numerical examples illustrate that the present method possesses both good capability to search global optima and far higher convergence speed than that of chaos optimization method.
目的：应用脑电波变化的非线性动力学特征，以混沌理论对长时程视频脑电资料进行分析，以期预测癫痫发作。
AIM: to analyze the long term video electroencephalogram data with chaos theory according to non linear dynamical character of the changes of brain wave so as to predict epileptic seizure.
存在不平衡量时，系统失稳可能产生拟周期分岔、倍周期分岔并可能导致混沌振动。
The instability of the unbalanced system motion may result in doubling period bifurcation, almost periodic motion and chaotic motion.
结果表明，该模型在不加扰动项或调制项时，即存在着混沌演化行为。
The results show that the model can exhibit chaotic behavior without any perturbation or modulation terms.
当一个生成三角波的回路同步失稳时，利用李亚普诺夫函数可以很容易证明系统实际上处于混沌态。
Using the Lyapunov exponent, writers can simply show the chaotic behavior when a circuit oscillating in triangular waveform is off synchronization.
另一方面在于与以往的单纯混沌参数调制不同，此方法可以在同步精度较低时，实现信息的传输。
On one hand this method can encipher information, on the other hand compared with traditional chaotic parameters modulation, this method can transfer information when synchronism precision is low.
最后以船舶机械非线性隔振系统为例，分别分析了该改进方法在系统呈现周期运动和混沌运动时的应用。
Finally, the periodic and chaotic motions of a nonlinear vibration-isolation system for on-board machinery are investigated.
目的研究动脉局部狭窄时血液流动的稳定性与混沌特性。
AIM To investigate the stability and chaos characteristic of blood flow through a stenotic artery.
利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。
The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency locking property when system transits from chaotic to great periodic motion.
他奇怪地看着我，奇怪地问，你怎么来了？他的话让我一时混沌，我立在门口进退两难。
He looked at me curiously, oddly ask, why are you here? His words make me for the moment, I have made chaos in the doorway dilemma.
当激光强度达到一定值时，出现了混沌，会激励DNA发生变异。
When laser intensity reaches a certain value, chaos appears and makes DNA mutate.
由于同步误差与信息信号无关，从而实现了大幅度、快时变信息信号的混沌调制通信。
Since the synchronization error is independent of information signal, the chaotic modulation for large amplitude and fast varying information signals can be achieved.
提出一种非线性时滞反馈控制方法，对混沌系统实施有效的控制。
This paper presents a method of nonlinear time delayed feedback, which can control the chaos system effectively.
另一方面在于与以往的单纯混沌参数调制不同，此方法可以在同步精度较低时，实现信息的传输。
On the other hand compared with traditional chaotic parameters modulation, this method can transfer information when synchronism precision is low.
研究一类具有时滞关联的时滞大系统的混沌现象和分散反馈控制问题。
The chaotic phenomenon and the decentralized feedback control problem of time delay interconnected large scale systems are studied.
当系统发生粘滑运动时，系统响应随激励速度、系统刚度及阻尼的变化而呈周期、拟周期及混沌运动交替变化的形式。
When system is in stick-slip motion, the system response can be periodic, quasi-periodic and chaos with the change of pulling velocities, system stiffness and viscous.
该成像算法利用二元混沌信号作为雷达发射信号，通过产生一个特征波形来指示目标的时延。
This imaging algorithm USES chaotic binary signals as transmitted radar signals and produces a characteristic waveform to indicate time delay.
特雷斯特说，多年来天文学家一直怀疑躲在混沌星云背后的类星体曾风光一时。
The notion that obscured quasars are the byproduct of galaxy mergers has been around for quite a while, adds astronomer Christopher Reynolds of the University of Maryland, College Park.
结果在速度剪切度增大到一定程度时，将会出现小尺度扰动的混沌行为，它导致局部高剪切区中湍斑的产生。
Results as the velocity shear increases to a certain extent, the small scale disturbances will exhibit chaotic behavior, which leads to the production of turbulent spots in local high shear regions.
针对一类时延混沌系统参数未知的情况，将自适应技术与系统辨识技术应用于时延混沌系统的同步控制。
The synchronization of a class of time-delay chaotic systems with unknown parameters is investigated and an adaptive control strategy is proposed.
模拟结果表明，当被驱动参量的变化范围足够大时，两个或多个混沌系统在新的动力学的基础上达到完全同步。
The simulation results show that two identical chaotic systems can be synchronized completely when the change scope of the parameter driven is large enough.
对于具有不确定参数的简单互联电力系统，当系统参数分别取某一定值时，系统表现出混沌性态。
As for the simple interconnected power system, the chaos is displayed when the parameters are specified as certain fixed values.
对于具有不确定参数的简单互联电力系统，当系统参数分别取某一定值时，系统表现出混沌性态。
As for the simple interconnected power system, the chaos is displayed when the parameters are specified as certain fixed values.
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