准周期性 meaning in English
pseudo-periodicity
quasiperiodicity
Examples
- The phenomenon of noise - induced transport of brownian particles in periodic and quasi - periodic systems with coupling between multiplicative colored noise and additive white noises is investigated
在含有耦合的乘性色噪声和加性白噪声的周期性和准周期性系统中，我们分析了噪声诱导的布朗粒子的输运现象。 - Because the speech signal is periodicity at sonant which vocal cords surge in low frequency and similarity to white noises at surd , the pitch can be detected in traditional way through the correlation operation without the speech produce model
在人类语音的浊音段，声带发生较低频率的振荡，语音信号呈明显的准周期性，而在清音段，语音信号则类似于白噪声。 - This paper assesses and analyses disaster degree of flood - waterlogging disaster by use of three - factor influence assessment method . it establishes the synthetic disaster index model and analyzes the in fluence degree of different disaster factors on synthetic disaster condition by use of the method of continuous substitution . the study results show as follows . the variation of disaster degree has the features of quasi - period and of development by stages ; the factors of flood disaster condition are the main influence factors on variation of synthetic disaster condition ; the influence direction of different factors are not all the same , and the factors that enlarge disaster condition show the new characteristics of flood - waterlogging disaster ; because the waterlogging disaster is serious da ybyday , the control of waterlogging must be strengthened
运用三因子联立评估法,评定了洞庭湖区洪灾,涝灾和洪涝灾的灾度,进行了相应的分析;构建了洪涝灾情指数,并运用联环替代法对各灾情因素的影响进行了分析.分析得出:洞庭湖区洪涝灾度具有阶段性和准周期性等特征;洪灾灾情因素是综合灾情变化的主导影响因素;各灾情因素影响方向不完全一致,其中起放大作用的因素反映出洪涝灾害的新特点;涝灾日趋严重,应加强涝灾治理 - Two different kinds of approximate theories for analyzing colored noise are employed in the nonlinear system . then effects of the colored nature of the noise on the statistical properties of the laser system , the stochastic resonance of bistable system , and the steady - state probability current of quasi - periodic system are investigated
本文主要通过两种不同的色噪声近似理论，分析了非线性系统噪声的有色性对激光系统的统计性质、准周期性系统的定态几率流和双稳系统中的随机共振现象的影响。 - Firstly , acoustic waves propagation in id quasi - periodic system is studied by means of the transfer matrix method . the transmission rate , reflection rate , energy flow , logarithmic energy flow , energy density and lyapunov exponent are obtained numerically . we explain all these parameters " relations with frequency and the size of system , and compare these p arameters with those o f periodic system . we find that these parameters are fractal in this quasi - period system
通过转移矩阵的方法，数值地得到了系统的传播系数t _ n 、反射系数r _ n ，能流密度j _ n 、能量密度e _ n 、李雅谱诺大指数_ n ，给出了以上各量与系统大小n以及频率之间的关系，发现这些量存在着与周期系统不同的准周期性质，其能量会出现局域化现象，能流以及能量密度都具有分形结构，给出了相应的理论解释。