查询词典 perturbation function

The circular polarization at the lower resonant frequency of the dual-frequency antenna can be achieved by setting a perturbation segment at an appropriate location in the patch element, and placing the feed point on the diagonal axis.

在较低的谐振频率处圆极化的获得是通过在天线辐射单元上适当地设置摄动元素，并将馈电点移到辐射单元的对角线上。

In chapter Ⅶ the perturbation theory on the optical ac Stark effect (see chapter Ⅳ) is applied to study the NMR spectroscopy in paramagnetic and diamagnetic systems.

在第七章，我们将第五章中应用于ESR系统的光移动的处理方法推广应用到NMR体系，探索研究了在激光场的作用下，顺磁体系和具有简并激发态的逆磁体系的NMR谱的变化，提出关于激光诱导的NMR频移的理论。

The resonant frequency fr was found to be indepen-dent of Am in the measured amplitude range. We considerthat the variation of fr with Ba is mainly contributed bythe diamagnetism of the specimen, and the motion of fluxlines in the specimen plays only a role of perturbation.

共振频率〓在振幅测量范围内未发现振幅效应，认为〓随磁场的变化主要是由于材料的抗磁性的贡献，内部的磁通线运动只起着一种微扰的作用。

In this paper, the theoretical model of CQI is described in an atom-diatom system in the condition of the molecular beam, based on the first-Born approximation of time dependent perturbation theory, taking into accounts the anisotropic Lennard-Jones interaction potentials. The method of observing and measuring correctly the differential interference angle is presented. The relation between differential and parameter, velocity is obtained. The relation of the integral interference angle and temperature is discussed.

文中利用一阶含时波恩近似和L-J相互作用势，建立了原子-双原子分子碰撞系统转动传能的量子干涉模型，描述了观察和测量微分干涉角的方法，得到了微分干涉角与碰撞半径和碰撞速度间的关系，同时也得到了积分干涉角和实验温度的关系。

In final chapter, we will discuss a perturbation method to solve the one-dimension Fokker-Planck equation with a constant diffusion coefficient and time-dependent drift coefficient.

所以我们在论文最后介绍一种新的方法来处理某一种Fokker-Planck方程式，这个方法就是微扰近似法。

For the dynamic system of discrete coupled and nonlinear three phase voltage source PWM rectifier, the cycle switch average operator is introduced to transform the discrete system into continuous and the small signal perturbation method is used to transform the nonlinear system into linear, the small signal dynamic mathematical models are set up.

中文摘要：针对三相电压型PWM整流器这个离散的、耦合的、非线性的动态系统，引入开关周期平均算子将离散的系统变换为连续的系统，应用小信号扰动法将非线性的系统化解为线性的系统，进而分析系统的小信号动态数学模型。

For the dynamic system of discrete coupled and nonlinear three phase voltage source PWM rectifier, the cycle switch average operator is introduced to transform the discrete system into continuous andthe small signal perturbation method is used to transform the nonlinear system into linear, the small signal dynamic mathematical models are set up.

中文摘要：针对三相电压型PWM整流器这个离散的、耦合的、非线性的动态系统，引入开关周期平均算子将离散的系统变换为连续的系统，应用小信号扰动法将非线性的系统化解为线性的系统，进而分析系统的小信号动态数学模型。

We have gaven a method of the discretization of fuzzy clustering methods based on perturbation.

给出了一种基于摄动的模糊聚类的属性离散化方法。

Thus in this thesis, we will made a detailed introduction of our method--perturbation based on unitary transformation, and apply it to several models to investigate the Non-Markovian decoherence and disentanglement dynamics of dissipation two-state system.

本文中，我们介绍一种新的解析方法-基于幺正变换下的微扰理论，并且把此理论应用到具体的实验模型中，推导了耗散二能级系统非马尔可夫退相干和退纠缠动力学。

Based on an analysis of symmetry, the dispersion relations near the Δ valley in strained Si(subscript 1-x)Ge (0≤x.45)/(001),(111),(101) Si are derived using the KP method with perturbation theory.

基于对称性分析，应用KP微扰理论确定了应变Si(下标 1-x)Ge(0≤x.45)/(001)，(111)，(101)Si的Δ能谷附近的色散关系。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。