perturbation

perturbation

美 [ˌpɜ:tə'beɪʃn] 　英 [ˌpɜ:tə'beɪʃn]

• n.摄动；扰动；微扰；忧虑
• 网络扰乱；干扰；动摇

词形变化

反义词

同义词

英汉双解

英汉解释

英英解释

例句

In many physical situations, the Hamiltonian of the system is composed of an unperturbed Hamiltonian and a perturbation.

在很多物理情况下，系统的哈密顿量由未扰动哈密顿量与扰动势两部分所组成。

An example shows that the result by the perturbation bounds method is superior to that of the Routh Criterion.

实例计算表明，单向摄动界法较劳斯判据法更为快速、精确。

The invention discloses a pixel perturbation driving method and a time schedule controller applied by the method.

本发明公开了一种像素扰动驱动方法及其应用的时序控制器。

The examples show that the random perturbation method is both easy to be carried out and extremely efficient.

算例表明，本文所提出的随机摄动算法易于实施，且十分有效。

The result showed that this algorithm has better dynamic and stable property, and good robustness against parameter perturbation.

仿真结果表明，使用该控制算法系统具有良好的动态性能和稳态性能，对系统参数摄动具有较强的鲁棒性。

Many numerical methods and perturbation methods are used to understand the evolution of ultrashort pulses in single-mode fiber.

许多的数值方法和微扰方法被用于研究超短脉冲在光纤中的演化。

On the basis of singular perturbation approach, the controller consists of a NN slow subsystem and a robust-based fast control subsystem.

根据奇异摄动方法，该控制器包括一个神经网络缓慢子系统以及强大的快速控制子系统。

Unwillingly she met his eyes, defiance and perturbation on her face.

她极不情愿地看着他的眼睛，满脸反抗和烦乱的神色。

The perturbation was a single extra 'spike, ' or nerve impulse, introduced to a single neuron in the brain of a rat.

干扰是一个单独的额外尖峰信号或神经冲动，刺激小鼠的一个单独的神经元。

when the perturbation accumulated into macro fluctuation, balance could be achieved by macro-evolution of the system self-organization.

当系统微扰累积成宏观波动时，系统自组织宏观进化达到物流资金供需平衡。

The other is the initial value problem about the general, the non-autonomous singular perturbation of fractional differential equations.

另一类是一般的非自治奇异摄动分数阶微分方程的初值问题。

It is not pretense nor play on prejudice. It is not the perturbation of a people passion-wrought nor a promise proposed.

进步不是宣言，也不是空谈。进步不是乔装打扮，也不是玩弄偏见。进步不是扰乱一个感情激动的民族，也不是提出某种承诺。

Therefore, the method can be used for analyzing the effect of random perturbation with known probability density on imaging quality.

因此，对于任意随机扰动，在已知其概率密度的情况下，使用这种方法可以分析它对相机成像质量的影响。

The mode perturbation method is applied to deduce the approximation analysis technique for dynamic characteristics of the prestressed beam.

采用模态摄动法，得出求解预应力梁的动力特性的近似求解方法。

Irradiation liberates the trapped molecule, permitting targeted perturbation of a biological process.

辐照解放被困分子，允许有针对性的摄动的生物进程。

A perturbation in pressure at the upstream end of the feed system could result in sizable oscillations in flow rate and chamber pressure.

供应系统上游端的压力扰动可导致相当的流量和室压振荡。

Moving the perturbation location along the circumference gives an expected flow fields with a series of asymmetric vortices .

通过控制微扰动的周向位置可以获得期望的非对称多重涡流场。

It means that the results of the shear simulations under different pressure are reliable when relating to the theory of linear perturbation.

这在小扰动波动理论的角度上说明了本文所得不同压力下剪切加载模拟结果的可靠性。

And the feasibility of this algorithm is demonstrated in a computational experiment with high-frequency perturbation.

最后，用带有高频扰动的数值算例来验证提出的算法的有效性。

With the time-dependent perturbation theory, the dynamics of a two-level system coupled to an Bose field is revisited.

从含时微扰论的角度出发，重新求解了与玻色场相耦合的两态系统的动力学。

On this basis, the project tries to analyze what measures should be taken by the plane in the weak perturbation to avoid the danger.

在此基础上，本课题尝试分析在弱扰动下飞机应当采取哪些措施来避免危险。

The perturbation effect of the earths magnetic field on the orbital elements of a charged satellite is further studied.

研究了地球磁场对带电的非赤道卫星的轨道根数的摄动影响。

The wave performance and its criterion of occurrence have been obtained by using perturbation theory and numerical method.

应用摄动理论和数值方法，求得了位移波的波形和位移波产生的判别准则。

this paper builds a dynamic model of a biped robot with Lagrangian method, then disturb and perturbation is extracted from the model.

本文利用拉格朗日法建立了双足步行机器人的动力学模型，从中提取出干扰和摄动。

To James, steady attention was thus the default condition of a mature mind, an ordinary state undone only by perturbation.

对于James来说，稳定的注意力是成熟个体的普遍特征，普通状态被打破只能源于混乱。

His real perturbation of mind would be best covered and pass concealed under a disguise of pretended lunacy.

在假装疯狂的掩护下，他心神的真正不安倒可以巧妙地遮盖起来。

Based on perturbation of the stiffness and mass of a structure, the transfer function of the structure with an MTMD is derived.

基于结构刚度和质量的摄动，建立了设置MTMD结构的传递函数。

Thus, the soliton perturbation theory is of importance for the research into more real nonlinear systems.

因而，孤子微扰理论在研究实际物理系统时具有很大的实用价值。

Moreover, an explicit and closed form of stability bound on perturbation parameter is provided and some other cases are also discussed.

并进一步给出估计摄动参数的稳定界的定量表示以及讨论其它情形。

Perturbation Theory III. Transition Probability. Wavepacket. Degeneracy.

微扰理论III。跃迁几率。波包。简并。

Preliminary findings are presented regarding Visi-Pitch settings in relation to automatically derived perturbation values (jitter).

初步调查结果提出了关于请访问间距设置在自动产生扰动值（抖动）。

Third, various meetings and Manpower to provide projector, digital camera equipment perturbation, arrogance car, station wagon.

各类会议统筹，提供投影仪，数码摄照像设备，骄车，旅行车。

As the fingers are moved toward the center, this automatic averaging shows slight perturbation.

随着手指移向中央，这个自动计算的平均值将显示微小的波动。

The singular perturbation algorithm is proposed to reduce the system dimension .

采用奇异摄动算法使系统降维。

We apply our result to a class of integral-differential equations with impulse perturbation for estimation.

最后，该文把所得结果用于研究脉冲积分-微分方程解的估计。

The bubble type micro-pump of the invention is low in energy consumption and does not cause the problem of pH-value perturbation.

本发明的气泡式微泵的耗能低，不会使液体产生酸碱值的扰动问题。

The gradients of the objective function with respect to the parameters are obtained through perturbation method.

目标函数相对于参数的梯度用扰动法计算。

The range of the vortex also has impact on the perturbation kinetic energy and its change rate.

而扰动涡旋的范围对扰动动能的大小与变化也存在一定的影响。

Here we present a dynamic systems-level study of cell fate change in murine ESCs following a well-defined perturbation.

在这里，我们提出一个动态的系统有以下一个明确的摄动水平细胞在小鼠胚胎干细胞的命运变化的研究。

For the visible parts, their rough location are done advanced, and then the perturbation model into the rough results is added in .

对可见的卫星轨道部分先进行粗略定位，然后加入摄动模型进行精确求解。