1、

First of all, base on the theory of coupled-wave, the dispersion equation and coupling condition of spiral corrugated waveguide is realized by applying the method of impedance perturbation.

首先,在耦合波理论基础上运用阻抗微扰法分析了内开槽螺纹波导的冷腔色散特性,通过数值运算作出了冷腔色散曲线同时用三维粒子模拟软件进行了相应的冷腔分析。

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2、

Calculation on correction of the wave function and energy level in the time-dependent perturbation theory

含时微扰论中波函数和能级修正的算法

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3、

An equation of nonlinear thermal wave beam is presented with nonlinear boundary conditions and solved by using the perturbation approach method under the case that the light source has a Gaussian profile.

本文提出一个非线性热波束方程及其相应的非线性边界条件。借助于逐步近似法在光源为高斯径向分布的情形下,求解这一方程。

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4、

On the basis of the wave equation, the amplitude equation of hyperbolic reaction diffusion equation for glycolysis model is derived by using perturbation theory, and it brings the theoretical basis for numerical studies.

在波动方程基础上,利用微扰理论求得糖酵解模型(修正Selkov模型)双曲型反应-扩散方程的振幅方程,为数值研究提供了理论根据。

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5、

Through second-order perturbation approximation and modal expansion approach, the second-harmonic generation of a primary Lamb wave propagating in layered structures has been analyzed, and the general solution to second-harmonic displacement fields has been obtained.

采用二阶微扰近似和模式展开方法,对分层结构中兰姆波的二次谐波发生问题进行了深入研究,得到了二次谐波声场的一般表达式。

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6、

A perturbation approach for velocity extraction from acoustic wave equation with boundary conditions

带边界条件声波方程速度提取的摄动方法

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7、

Make perturbation, in terms of these errors, to revise wave impedance mod-el until the errors reduce to minimum.

根据此误差,再作摄动,修改波阻抗模型,直到误差趋于最小为止。

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8、

Several typical theoretical researches and experimental investigations in this field, including electron beam-plasma interaction, plasma local perturbation, three-wave interaction, are introduced.

本文着重介绍了几种典型的等离子体微波辐射理论和实验研究现状,包括电子束与等离子体互作用、等离子体局部扰动、三波互作用等。

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9、

In this paper, the coupling optical mode amplitude equations under the perturbation of magnetostatic wave ( MSW) have been derived with a new perturbation method;

利用新的微扰方法导出了层状YIG薄膜波导中静磁波微扰下的光模式耦合振幅方程;

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10、

In the end, we prove the validity of the singular perturbation expansions and get some useful deductions about the existence of the classical solution to the flood wave equations.

最后文章证明了对带松弛项的流波方程初值问题所作的奇异摄动展开的有效性,得出了有关解的存在性的一些有用的推论。

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11、

based on the nonlinear paraxial wave equation, the propagation equation of small-scale perturbation of divergent beams has been deduced with a coordinate transformation. the evolvement law of the growth critical frequency of small-scale perturbation, maximum growth frequency and relative b integral is obtained.

从非线性傍轴波动方程出发,利用坐标变换,推导出发散光束小尺度扰动的传输方程,进而得到小尺度扰动增长的临界频率、最大增长频率和相应B积分值的变化规律。

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12、

The acoustooptic interaction in biconical optical fiber was analyzed based on coupled mode theory, and the relationship between perturbation period and flexural wave frequency was discussed.

利用耦合模理论分析了在双锥光纤耦合区中声光的相互作用,讨论了在不同耦合区半径下扰动周期与声波频率的关系。

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13、

Two parametric four-wave-mixing ( FWM ) processes in Rb atoms are studied separately using perturbation theory.

利用微扰法分别分析了铷原子中两个参量四波混频过程.

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14、

The perturbation growth rate, critical wave number and critical number are affected by thermal non-equilibrium effect.

热 非平衡 效应不仅影响扰动增长率, 而且对临界波数和临界雷诺数也有影响.

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