In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
除了振幅和波长，周期波有它自己的频率。
Be this kind of relation and its motion, brought about the periodic wave motion of real economy.
正是这种关系及其运动，导致了现实经济的周期性波动。
By the orbit in the phase portraits, different kinds of solitary wave, kink wave and periodic wave solutions are obtained.
通过相图中的各种轨道，获得了孤立波，扭子波和周期波的精确解。
No matter from the wave type structure, space, time, speed, all the signs are that, large periodic wave two adjustment will end.
无论从浪型结构、空间、时间、速度，这一切的迹象都表明，大周期二浪调整将结束。
The periodic bar and beam structures are modeled as one-dimensional periodic wave-guides and the expression of transfer matrix of elastic waves is derived.
将周期杆梁结构看成一维周期波导，推导了结构中弹性波传递矩阵的表达式。
The periodic wave solutions of the generalized CH equation are investigated by using bifurcation theory of differential equations and numerical simulations.
用微分方程分支理论和计算机数值模拟方法研究广义CH方程的周期波解。
The method and results in this paper for solving the problem of wave and vibration mode localization in periodic wave guide can be used in the optimum design of such kind of structure.
本文对周期波导中波传播与振动局部化的分析方法和计算结果可用于结构的优化设计。
Two kinds of methods for solving localization factor are given. As examples, localization factors of ordered and disordered periodic wave guides are respectively calculated and discussed.
采用两种求解局部化因子的计算方法，分别计算了谐和与失谐周期波导中的局部化因子，并对其进行了分析讨论。
When the integral constant is zero, the existence of smooth solitary wave solutions, uncountably infinite, many smooth periodic wave solutions, and kink and anti-kink wave solutions are proved.
在积分常数为零的条件下，证明了该方程存在光滑孤立波解、不可数无穷多光滑周期波解、扭结波和反扭结波解。
The substructure method was introduced to set up mathematical model of finite periodic composite structure, to solve its wave equation, and to derive its time-average power flows.
采用子结构法，建立了有限周期复合结构的数学模型，求出了数学模型的波动解，并推导出模型的时间平均功率流。
It is difficult to detect the periodic impulse component in the vibration acceleration signal with conventional analysis methods such as time domain wave and frequency spectrum.
通过时域波形和频谱等基本分析手段来探测振动加速度信号中的周期性冲击分量往往是困难的。
Tumbling flow is appeared in this fishway which produces wave surge and continues to flow downward and may causes serious damage due to its behaviour of periodic tumbling action.
在这种鱼道中出现的滚动流将产生波涌，并继续向下传播，而且它的周期性滚动可能会严重危害鱼道。
Results Different EEG features in correspond with various stages of the diseases were observed periodic sharp wave complexes as the typical pattern.
结果观察到与其不同阶段相对应的脑电图特征，典型表现为周期性尖慢复合波。
Based on the method of wave transfer matrix, the elastic wave and vibration localization in disordered periodic structures is studied.
基于弹性波传递矩阵方法，研究了失谐周期结构中弹性波与振动的局部化问题。
A primary seismic wave from an explosive source is a pulse response, and its periodic vibration originates from seismic pulses.
爆炸震源的地震纵波是脉冲性质的。周期振动是地震脉冲引起的次生振动。
It can make up the shortage that only the periodic dots or lines can be made when using laser standing wave field to control the atoms to stack on wafer in atom lithography.
弥补了原子光刻技术中利用激光驻波场控制原子堆积只能制作单一量子点、线等周期性图形的不足。
Some new exact elliptic periodic solutions of the dispersive long wave equations in (2 + 1) dimensions are obtained by using the method.
在此基础上，得到2 +1维耗散长波方程组的椭圆周期解。
The bandgap structure is calculated using periodic method of moment, and the plane wave reflection phase is calculated using FDTD.
利用周期矩量法计算了其带隙特性，利用FDTD法计算了其反射相位。
Based on the theory of elastic dynamics, using the governing equation of thin plates, the reflection and transmission of flexural wave in thin plates with an array of periodic cracks were studied.
本文基于弹性动力学理论，分析研究了含有横向周期裂纹的平板中弯曲波的反射与透射问题。
The waves of the sea is the shape of the spread, and is left at the water quality, balance position periodic vibration and spread to certain direction, in the form of a wave.
海浪是海面起伏形状的传播，是水质点离开平衡位置，作周期性振动，并向一定方向传播而形成的一种波动。
Slow-wave systems generally employ periodic structures, and the electromagnetic waves transmitted therein are required to satisfy very complicated boundary conditions.
慢波系统一般采用周期性结构，其中传输的电磁波需要满足十分复杂的边界条件。
If the pumping signal is the periodic square wave, the damped oscillation wave will be generated in the circuit.
在周期性方波激励下，电路中产生衰减振荡波形。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
全波傅氏算法是基于周期信号推导出来的，当采样信号中含有衰减直流分量时，将会产生误差。
The periodic initial value problem of a class of generalized symmetric regularized long wave equations is considered.
考虑了一类广义的对称正则长波方程的周期初值问题。
Some existence theorems of periodic traveling wave solutions for this kind of generalized BBM equation are given.
本文引入和讨论一类新的广义bbm方程，得到了关于这类广义bbm方程周期行波解的一些存在性定理。
We analyze rejecting periodic interference in PD monitoring on line through cascade IIR digital wave notch filter. The principle and simple design method are proposed and discussed.
在分析用IIR陷波滤波器来抑制局部放电在线监测中周期性干扰的基础上，提出和论述了级联式II R陷波滤波器基本原理及简明设计方法。
The results show that the periodic oscillation of the immediate distortion is caused by the pulsed laser wave.
结果表明，激光的脉冲作用引起瞬时变形周期性振荡；
An interpolating wavelet collocation method (IWCM) for adaptive solution of wave propagation in layered media with non-periodic boundary condition is presented.
利用多尺度插值小波理论，提出一种适合于求解一般边界层状介质波传问题的快速自适应配点算法。
The characteristic of the concentration wave in the RTD of out-circular reactor, which is a nonstationary quasi-periodic signal, has been investigated with wavelet analysis.
应用小波分析研究了外循环反应器浓度波这类非平稳拟周期信号的特征。
The characteristic of the concentration wave in the RTD of out-circular reactor, which is a nonstationary quasi-periodic signal, has been investigated with wavelet analysis.
应用小波分析研究了外循环反应器浓度波这类非平稳拟周期信号的特征。
应用推荐