查询词典 method of perturbation

Firstly, the integral-differential equation described the radiation field evolution is derived, and then the instability of its solution is also investigated analytically. By using the perturbation and iteration method, the threshold detuning and threshold linear growth rate of the unstable solution are analyzed and discussed in detail.

首先，建立了一个描述辐射场演化的积分一微分方程，解析分析了系统解的不稳定性，并采用线性方程解的微扰迭代方法进一步对系统不稳定解出现的失谐量阈值和线性增长率阈值等作了详细讨论。

In order to analyze the dynamic of a turret-moored tan ker, a perturbation method was used to predict the RAO and the spectra of moti on and mooring line tension under the irregular wave condition.

为研究转塔式系泊储油轮的动力响应，应用二阶频域摄动理论计算了其在压载状态下的一阶运动响应、二阶运动的响应谱及锚泊线张力谱，并与相应的模型试验结果进行了比较。

The dispersion and interaction impedance of two kinds of helical slowwave structure with vane-loaded are measured by using nonresonant perturbation method in 4～18 GHz with Aglient 8510C vector network analyzer.

螺旋线行波管由于其具有高功率、高增益、高效率和宽频带的特点，在电子对抗和通讯等领域具有广泛的应用。

The approximate calculating method is proposed for the low loss and thin flake material perturbation outside of the cavity. The measured complex permittivities of teflon,polyvinyl chloride ,pure ceramic flake are in good agreements with the standard data.

在隙缝辐射较小的条件下，提出适于损耗小，厚度薄(1mm左右)的片状材料腔外微扰的近似计算方法，测得聚四氟乙烯、聚氯乙烯、纯陶瓷片等复介电常数与准确值相当吻合的结果。

The four Stokes components of brightness temperature and emissivity are solved using the high-order small perturbation method.

该模型基于二维粗糙海面上场的高阶微扰法展开近似，得到了4个发射率分量及亮温的高阶微扰解。

Using the Lagrange varitional method and considering the cross phase modulation as perturbation factor, the characteristic of DMS are synthetically analyzed and studied in wavelength division multiplexing and optical time division multiplexing systems for the first time.

运用拉格朗日变分法视XPM为扰动因子，首次综合解析了WDM和OTDM系统中DMS特性，并利用解析结果对不同的系统进行研究。

Systematical investigation on the high-lying triplet gerade states of Na2 by using the perturbation facilitated optical-optical double resonance method is also made.

论文的另一部分工作是采用微扰增强的光学－光学双共振荧光探测方法研究Na2分子的高激发三重电子态。

Aimed at the large deformation problem of industry cooling tower shell, the mathematical model for the random response of rotational shell under the external random excitation is established by statistic perturbation method.

针对工业冷却塔结构大变形的随机动力问题，利用统计摄动方法，考虑旋转壳法向几何非线性及随机激励作用，建立了旋转壳的非线性随机动力响应数学模型。

Employing the inverse perturbation method , we have tackled the problem of optimum design of the machine tool spindle.

用逆摄动法进行机床主轴的动力优化设计。

Key problems of this measurement technology in the microwave resonant cavity perturbation method implementation and measurement device development are studied.

研究了微波谐振腔微扰法测湿技术实现及测量装置研制中的一些关键问题。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。