研究了采用系统广义能量的最大值作为起控条件，实施正比例系统参数微扰，脉冲控制混沌的方法。
Using the maximum value of the system general energy as the control conditions and using proportional system parameter impulse perturbation to control chaos are studied.
目的探讨室带肥厚患者的嗓音参数，包括频率微扰百分值、基频等，分析室带是否参与发音。
Objective To study the vocal parameters, including fundamental frequency, base, vocal range, jitter, in patients with hypertrophic plica vertricularis.
对随机微扰型位相片，输出模式是部分相干的，在合适参数下，也可得到平顶光束。
For resonators with random disturbed phase mirror, its modes are partially coherent, and there also exists a suitable parameter to get flat top beam.
本文提出用矩阵微扰法计算精密电磁测量线路的参数发生微小变化时引起的误差。
A matrix perturbation method for the calculation of errors in precision electro-magnetic measuring circuits caused by small variation of circuit parameters is described in this paper.
采用可变长度单摆的力学模型对秋千振荡给出初等分析，采用微扰近似法导出了秋千的非线性参数共振解析解，并进行了讨论。
A variable length simple pendulum model is introduced, elementary analysis and perturbation analytic solution of nonlinear differential equation for parametric resonance are presented.
采用可变长度单摆的力学模型对秋千振荡给出初等分析，采用微扰近似法导出了秋千的非线性参数共振解析解，并进行了讨论。
A variable length simple pendulum model is introduced, elementary analysis and perturbation analytic solution of nonlinear differential equation for parametric resonance are presented.
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