拟周期的

A novel gene CCR (Cell-Cycle Related) was cloned from Atriplex hortensis. Northern blot analysis showed that the CCR gene specifically expressed during G1 and early S phase of the cell cycle, but suppressed by ABA treatment.

从山菠菜和拟南芥中克隆了一个新的未知功能的植物基因，编码DNA结合蛋白，其在细胞周期的G1和S期特异表达，受ABA抑制，命名为CCR（Cell-CycleRelated）。

He proved that the existence of the quasi-periodic solutions when the toriadmit 2-dimensional elliptic equilibrium point.

他证明了当系统有二维椭圆不动点时拟周期解的存在性。

The results of system responses show that routes to chaos from period doubling or triple and quasi periodic.

系统通向混沌的道路是周期3、倍周期分叉和拟周期运动演化为混沌运动。

A novel four-dimensiond hyperchaos system with only one nonlinear term is reported. The Lyapunov exponents spectrum, periodic orbit, quasi- periodic orbit, and the chaos and hyperchaos attractor of this system are obtained.

构造了只包含一个非线性项的四维超混沌系统，得到了系统的Lyapunov指数谱、周期轨道、拟周期轨道、混沌和超混沌吸引子。

A feedforward adaptive control system based on ARX model description has been developed and applied to the control of structural vibration excited by Pseudo-periodic signals.

发展一种基于ARX模型描述的实时自适应前馈控制系统，并将其应用到具有拟周期扰力的结构振动控制中。

The bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. The bifurcation diagrams, maximum Lyapunov exponent diagrams, Poincaré maps, phase plane portraits, trajectories of journal center, time-history curve, amplitude spectra diagrams of the rotor motion are used. The convert and evolution course of periodical response, quasi-periodical response, double-periodical bifurcation, chaos of the system response is analyzed.(3). It is deduced that the general differential equation of bending-torsional-pendular coupling vibration about rotor with the gyroscopic moment. On the basis of this equation, the general differential equations of coupled bending, torsional and pendular nonlinear vibration about rotor with unbalance character and rubbing character are deduced.

2建立了具有非线性刚度的转子系统在非稳态非线性油膜力作用下的径向碰摩动力学微分方程，并应用含高阶余项的非线性动力方程的线性化数值法研究了此类系统响应的复杂动力学行为，利用转子响应的分岔图、最大Lyapunov指数曲线、Poincaré截面映射、时域波形、相轨线、轴心轨迹、幅值谱等图形分析了系统响应的周期运动、拟周期运动、倍周期分岔、混沌等运动形式的转化与演变过程，重点研究了非线性刚度、转子转速、偏心质量等系统参数对碰摩故障转子系统的分岔和混沌行为的影响。

By virtue of bifurcation diagrams, Poincaré maps, orbits, time histories and frequency spectrum diagrams, the nonlinear dynamic responses of the generator rotor and hydraulic turbine rotor with coupling faults were analyzed. The results confirmed rich nonlinear motions such as periodic motion and quasi-periods with different values of parallel misalignment and declination. Moreover, the process of rub-impact is so complex that many low frequencies with large amplitude are in the range of

通过分岔图、Poincaré截面图、轴心轨迹图、时域波形图和幅值谱图系统地分析了发电机转子与水轮机转子在耦合故障下非线性动力学响应，发现机组转子系统随不对中平行量和偏角变化存在周期运动和复杂的拟周期，其碰摩过程非常复杂，机组故障特征频率除主要在1倍频外，还在0.3~0.4倍频处存在幅值较大的谐波分量。

It signifies that the solutions are periodic or approximately periodic in some specified range of Reynold numbers and that a very complex transition occures by a few period doublings following Feigenbaum's route to chaos.

结果表明在一定的雷诺数范围内解是周期或拟周期的，并且有一个复杂的倍周期分叉途径向混沌转捩。

In the orbits of quasi-periodic and chaotic motions the orientation of the orbits can be more clearly observed.

在拟周期与混沌运动的轨道中，轨迹的方向性可以更清楚地表现出来。

When the system is in quasi-periodic motion, the synchronization is still sensitive to the faint variation in the input signal.

在拟周期激励时，信号的振幅有微小差别也不会出现同步。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了