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。
Nowadays, protein coevolution analysis is mainly based on coefficient correlation methods, perturbation methods and parameter test.
当前分析共进化残基的方法主要有基于相关系数的方法、基于微扰理论的方法、参数检验法等。
However, the perturbation methods for distinct or repeated eigenvalues can not be directly used to deal with the vibration modes with close eigenvalues.
然而，已有的孤立特征值摄动法和重特征值摄动法都难于用来解决密集模态的摄动问题。
The method to estimate boundary heating flux according to the observation (single point or multipoint), is given with least squares and perturbation methods;
根据单点或多点测温，应用最小二乘及最佳摄动法，确定气动加热面边界热流密度。
This paper also gives the differential equation of the nonlinear vibration model, and obtains its asymptotic solution by means of singular perturbation methods.
文中给出了这一非线性振动模型的微分方程，并用奇异摄动法求得了渐近解。
Several perturbation methods for mode analysis were briefly summarized in this paper, some of which were widely applied in sensitivity analysis as well as reanalysis.
模态分析的矩阵摄动法在灵敏度分析和重分析中有广泛的应用。
Comparison of a set of measured data to numerical computations of the backscattering coefficients for actual natural rough surface by the classical and new perturbation methods were given.
采用传统微扰法和基于圆柱曲面修正的微扰法，计算了实际粗糙面掠入射时的后向散射系数，并与有关测量值进行了比较。
The method relies on active perturbation to the system to obtain prior knowledge for building the model, and then constructs the dependency model based on the methods of building Bayesian networks.
这个方法通过对系统进行主动干扰来获得建模的先验知识，然后基于贝叶斯网络构造方法，对分布式应用的组件间关系建立依赖性模型。
On the basis of the principle of atmospheric drag perturbation this paper describes two methods: numerical method and combining both of analytical and numerical method.
根据大气阻力摄动的基本原理，给出两种摄动计算方法，即半分析半数伍方法和数值积分方法。
Methods the maximum principle, monotone method, bifurcation theory, the perturbation theorem for linear operators and the stability theorem for bifurcation solutions were used.
方法运用极值原理、上下解方法、分歧理论、线性算子的扰动理论和分歧解的稳定性理论进行研究。
The course also examines approximation methods: WKB method, variational principle, and perturbation theory.
同时，本课程也解释了几种常用的近似方法：WKB方法、变分原理、以及微扰理论。
In the first chapter, we briefly introduce the research progress, present situation and main methods of soliton theories and perturbation problems of bright and dark solitons.
在第一章中，我们简单介绍孤子理论、亮孤子和暗孤子微扰问题的研究进展、现状和主要方法。
So various methods are proposed by scholars to solve these problems, such as pulse spectrum method, the best perturbation method, Monte Carlo method, optimized and regularization method.
因此许多学者提出了各种求解反问题的方法，比如脉冲谱方法，最佳摄动量法，蒙特卡罗方法，各种优化方法和正则化方法等。
The perturbation ranges of the coefficients of Hurwitz polynomials, which is related to interval polynomial stability, are discussed, and three analysis methods are proposed.
本文还讨论了与区间多项式稳定性相关的一个重要问题，即稳定多项式系数的最大摄动量问题，给出三种分析方法。
The influence of the time-vary external magnetic field perturbation on the guidance force of HTS bulk over the PMG was investigated by experimental methods in this dissertation.
本文通过实验的方法研究了时变外磁场对稳定悬浮于永磁导轨上方的高温超导体块材的导向力性能的衰减影响。
In this thesis, several nonconforming finite element methods for plate problems and fourth order elliptic singular perturbation problems are discussed.
在论文中，我们主要讨论了四阶椭圆问题的一些非协调有限元逼近。
In this thesis, several nonconforming finite element methods for plate problems and fourth order elliptic singular perturbation problems are discussed.
在论文中，我们主要讨论了四阶椭圆问题的一些非协调有限元逼近。
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