振荡的

At first, a model of a pair of excitable neurons coupled via gap junction is built by Chay model, the effect of the strength of gap junction on the synchronous oscillation is studied;then, the synchronous oscillations of a 2-D network are also studied;at last, the Lyapunov exponent and phase portrait are utilized in the analysis of nonlinear, the approximate entropy is utilized to measure the complexity.

首先以Chay模型为基础建立了两个神经元电突触耦合模型，研究了不同电突触耦合强度对两个神经元同步振荡的影响；其次，研究了可兴奋神经元组成的二维网络的同步振荡；最后，应用李雅普诺夫指数和相图分析了同步振荡的非线性，应用近似熵分析了同步振荡的复杂性。

The results show that the amplitude,period and frequency of oscillation changed with the addition of potassium chromate.

结果发现铬酸钾的加入改变了振荡的振幅、周期和频率，且随着浓度的升高，振荡逐渐减弱，甚至完全抑制振荡。

In order to increase the reversibility and the amplitude of the salt-water oscillation, the salt-water oscillation and the liquid membrane oscillation were coupled to create a compound oscillator.

实验结果表明，有表面活性作用的物质可以增加盐水振荡的振幅，有络合性能的物质的络合作用是盐水振荡可逆的关键，既有络合作用，又可以起到表面活性剂作用的物质既可以增加盐水振荡的振幅，又可以使盐水振荡可逆。

Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

The mechanism of forced resonance and self-excited thermoacoustic oscillation are studied to understand the combustion oscillation in thermal systems.

针对热力系统中声耦合燃烧振荡问题，分析了强迫共振和热声自激两类声耦合燃烧振荡的机理，重点综述了热声自激振荡的若干驱动机制，并给出了防止声耦合燃烧振荡的措施。

The NEF method is potential in developing new efficient tools for on-line security analysis and control. In study of the method of damping system low-frequency oscillations, this project has proposed the control strategy of oscillation energy function descent.

项目研究中还应用归一化暂态能量函数对电力系统振荡机理进行分析，设计了增加阻尼平抑电力系统振荡的方法，提出了振荡能量函数的概念，得出"振荡能量函数下降法"的控制策略。

Based on the idea, this paper develops a new performance index of detecting the oscillatory feedback control loops.

本文利用这个思想，在现有评价控制回路振荡方法的基础上，提出了一种新的回路振荡评价方法，通过找出系统可接受的振荡程度和被控变量的自相关函数的关系，得到评价反馈控制回路振荡的性能指标。

It shows that the field entropy is oscillating, which is the result of the correlation property between the atom and field. With the increase of the initial field intensity, which is the initial mean photon number the oscillation becomes irregularly and the amplitude decreases. The atom and the field couples tighter, and the disorder parameter decreases.

结果表明，场熵的演化是振荡的，这源于光场与原子之间关联的振荡性；随着初始光场强度的增大，光场的振荡变得不规则，振荡幅度明显减小，这是因为光场与原子之间的耦合越来越强，系统的无序度降低，而双模光场使系统的场熵演化周期性减弱，场熵的均值增大。

The experiment shows that:(1) In certain light intensity and electric field ranges (145～305V/cm) the material Si∶ with a resistivity of 1E4Ω·cm exhibits a current oscillation phenomenon at liquid nitrogen temperature;(2) At a certain electric field,the waveform of the current oscillation is stable and does not change with time;(3) The dependence relation between the oscillation frequency and light-intensity can be expressed by f=f0(L/L0)α where L0 is the minimum light-intensity needed to stimulate oscillation,f0 is the frequency under L0,L is the intensity of the light,and α is a coefficient that increase with electric field;(4) The modulating coefficient K K=(Imax-Imin/Imax decreases as the light increases;(5) The maximum value of the oscillation Imax decreases with the increase of the light-intensity while the minimum value of oscillation Imin increases slowly.

结果表明：在一定光照和电场范围内（276～305V/cm ，电阻率为10.4Ω·cm的材料在液氮温度下显示出电流振荡特性；在一定的电场下，电流振荡波形是固定的，不随时间变化；振荡频率随光照强度的增大而线性增大；调制系数随着光强的增强而减弱；振荡的最大值随着光照强度增大而减小，最小值随着光强增大而缓慢增大。

Through simulation and experimental ways to combine studies of plasma engine oscillation circuit inductance on the impact Experimental results show that the increase with inductor current oscillation lower voltage oscillation, Current changes in oscillation and the existence of a 0 ~ 28mH mutation interval conclusions.

本文通过实验与仿真相结合的方式研究了等离子发动机回路电感对振荡的影响，通过实验得出了随着电感增大电流振荡降低电压振荡增加，且电流振荡变化存在一个0~28mH的突变区间的结论。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。