| 1. | Qpo , quasi - periodic oscillation
似周期振荡 |
| 2. | Long periodic oscillation
长周期振荡 |
| 3. | This suggests that stage structure may be a cause of periodic oscillation of populations and can make the behavior of population models more complex
这说明阶段结构可能是种群数量周期扰动的原因，从而使得种群模型的性态更加复杂。 |
| 4. | Other than the periodic oscillation in pollen tube growth rate , the amplitude of each oscillation also changes in an oscillatory behaviour
在花粉管生长速率呈现周期性变化的同时，生长振荡的振幅也表现出“小?大?小”的规律性变化。 |
| 5. | 29 representative stations of northwest china are selected using eof analysis , and the detailed results of characteristics are given for temporal and space variation of interarmual change and decadal change . the main conclusions are followed : ( 1 ) the tendency of precipitation in northwest china is positive to the west of 103 e longitude and opposite to the east of it . there is a periodic oscillation of quasi - three years of precipitation and a mutation in the middle of 80s in spring precipitation of northwest china
用eof分析方法选取西北地区29个代表站，分别对其春季和夏季近50a降水进行年际变化和年代际变化时空特征分析，结果发现( 1 )西北地区近50a降水时空趋势变化以103 e为基准线，以西为正，以东为负，并有准3a的振荡周期， 80年代中期西北地区春季降水出现了气候突变。 |
| 6. | Recent study of the kilohertz quasi - periodic oscillations ( qpos ) in low mass x - ray binaries ( lmxbs ) indicates that the radiation force , other than the magnetosphere and disk interaction and the general relativity ( gr ) effect setting the inner disk edge , serves as the disk truncation mechanism on shorter time scales . some results and discussions are presented in this paper
最近对低质量x射线双星中的千赫兹准周期振动的研究表明,是辐射压力,而不是盘和磁球的相互作用以及处于盘内边界的广义相对论效应在短时标的盘切断机制上起作用.本文给出了一些研究结果及讨论 |
| 7. | We consider the traveling waves of a delay cnn system with the output function f given as a non - linear function in the latter . we show the existence of monotone traveling waves solutions and describe the global structure of traveling waves such as monotone , damped oscillation , periodic oscillation and unbounded etc as the wave speed c is classified in r
第二部分我们考虑具时滞非线性cnn系统模型，得出方程单调行波解存在，并将波速c r分成若干个区间，得出c在各个区间时行波解曲线相应的类型包括单调、衰减振动、周期振动、无界等类型。 |
| 8. | 3 , considering of the combustion reaction controlled by multi - mechanism , calculated results showed combustion wave of the continual combustion also changed to an unstable combustion way , the combustion temperature and wave propagating velocity changed periodically . by changing factors about the reaction mechanism , results showed the periodic oscillation combustion was mainly caused by the effect and feedback between chemical reaction and thermal conduction
3 、计算结果同时显示， shs燃烧过程中的不稳定主要来源于燃烧过程的热反馈造成的化学反应机理变化，在这种存在多机理控制的反应体系中，燃烧过程的温度会随时间变化而出现有规律的振荡。 |
