扰动

Chapter 5 concerns the number of limit cycles for a cubic Hamiltonian system under cubic perturbation.

第五章给出了只关于一个轴对称的三次哈密顿系统的分类，研究了三次哈密顿系统在三次扰动下的极限环的个数与分布。

Chapter 4 investigates the number and distributions of limit cycles for a class of Kukles system, which also can be regarded as a class of reduced Kukles system under cubic perturbation.

第四章研究了一类Kukles系统的极限环的个数与分布，这里我们把所研究系统看作是三次扰动下的退化的Kukles系统。

Parabolized stability equation of 3D disturbance wave was deducted under orthogonal curvilinear coordinates. The static pressure distribution on blade surface was measured in wind tunnel test, and this result was used for analysis of blade's flow stability.

推导出正交曲线坐标系下三维扰动波的抛物化稳定性方程，在风洞实验中测量叶栅叶片表面的静压分布，并结合测量结果对设计叶栅的流动稳定性进行特征值分析。

A new nonlinear control technology that improved one cycle control technology is proposed.

提出了一种新的非性控制技术——改进的单周控制，解决了单周控制技术对负载扰动抑制能力差的缺点。

Then the method of wave control based upon the abovemethodology and the solution of D'alembert,and the numerical simulations aboutthe model of Euler beam are made.

并且以D'alembert解为基础，给出了对任意扰动所形成的波动控制方法，并以Euler梁为模型进行了数值仿真。

Comparing with the traditional He-Ne laser narrow beam collimating method, it has the advantages of the less influence of air disturb, minor light beam drift and high stability of the datum line.

与传统的He-Ne激光细光束准直法相比，这种方法受大气扰动的影响小，光束漂移小，准直基线的稳定性好。

The foundation and the pumping characteristic of the neutrality gases provide important physics parameter for investigate the ability of impurity stay, concentrate and remove efficiency and the radiation divertor, debouch divertor.

实验结果表明，HL-2A装置边缘等离子体扰动诱发的静电雷诺协强产生了边缘极向流；偏滤器位形运行模式下，主真空室中边缘等离子体再循环降低，杂质水平下降，中性化气体的建立和抽除特性为研究偏滤器的杂质滞留，浓缩能力和排除效率以及辐射偏滤器，脱离偏滤器提供了重要的物理参数。

This paper provide some results regarding upper semi continuity as well as lower semi continuity of cone efficient,and weakly cone efficient solution s in vector optimization with decision cone is perturbed.

研究了当控制锥受扰动时，具有集值映射向量优化问题的锥有效解和锥弱有效解的上、下半连续

For instance, the perturbation may transform a strong detonation into a weak deflagration followed by a shock wave. This interesting phenomenon also appears in the numerical solutions in [58]. Our results give a reasonable explanation to this phenomenon.

例如，扰动会将一个强爆轰波变为一个波后为激波的弱爆燃波，这种现象亦出现在数值解[58]中，我们的结果为这种现象提供了一个理论的解释。

Even if the designed controllers prove to have outstanding control performance on given steady model, the performance could degenerate greatly in case of parameter disturbance.

即便得到的控制器对于辨识得到的稳态对象模型有着优良的控制效果，当对象模型出现扰动以及变化时，控制效果可能急剧恶化。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。