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。
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。
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。
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。
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