| 1. | We must seek two main approximation methods of solution, the variation method and perturbation theory .
我们必须寻求两个主要的近似解法、变分法和微扰法。 |
| 2. | Singular perturbation method
奇异微扰法 |
| 3. | Test method for complex permittivity of solid dielectric materials at microwave frequencies - perturbation method
固体电介质微波复介电常数的测试方法微扰法 |
| 4. | Using the direct perturbation method , we gave the analytically chaotic solution and its boundedness condition to each perturbed equation
运用直接微扰法，我们给出了各级微扰方程的解析解及其有界性条件。 |
| 5. | Characteristics of omni - directional dielectric rod grating leaky antennas with arbitrary profiles are investigated by an improved perturbation method
摘要用改进微扰法分析了任意曲线形状圆柱形介质栅全向天线的辐射特性。 |
| 6. | The direct perturbation technique , proposed recently , successfully deals with a kind of perturbed chaotic system and obtains their formal solutions for each order
最近发现，通过直接微扰法可以得到一类微扰作用下的混沌系统的形式解。 |
| 7. | The direct perturbation technique , proposed recently , successfully deals with a kind of perturbed chaotic systems and obtains their general solutions for each order
最近发现，通过直接微扰法可以得到一类微扰作用下的混沌系统的形式解。 |
| 8. | By use of the direct perturbation method , perturbed correction is construct and its boundedness conditions are established that contain the melnikov criterion for the onset of chaos
运用直接微扰法，我们给出了一级微扰方程的解析解及其有界性条件。 |
| 9. | It is proved by numerically simulation that the disturbing method can still obtain fairly good noise reduction results even if the signal - to - noise ratio of input signals is low . 3
（ z ，又， … ， 、几实验表明，梯度微扰法在低信噪比时仍然能够得到很好的降噪效果。 |
| 10. | In this dissertation , different theories of measurement are discussed . through the comparison , we use traveling - wave method to measure dispersion and nonresonant perturbation method to measure interaction impedance
通过分析、比较不同的测量方法,本文最后采用行波法测量色散,非谐振微扰法测量耦合阻抗。 |
