查询词典 resonance method

The method is as follows that the two ends of a nanometer are fixed on two pivots and an axial micro-pulling force T is applied on the nanometer; an electrode is arranged on the middle part of the side of the nanometer and an alternate voltage is applied on the electrode to motivate the nanometer to generate resonance, and therefore, the natural frequency f of the nanometer is measured and acquired; according to the material characteristics and the geometry characteristics of the nanometer as well as the boundary condition of the nanometer material, the relation between the natural frequency and the axial pulling force of the nanometer, namely the f-t curves of the nanometer, can be calculated by a vibration equation; according to the measured natural frequency f, the size of the micro-pulling force T can be acquired.

该方法将一根纳米材料的两端固定在两个支点上，给纳米材料施加一个轴向的微小拉力T；在纳米材料的侧面，位于该纳米材料的中部放置一个电极，在电极上施加一个交变的电压激励纳米材料使其发生共振，测得纳米材料的固有频率f；根据纳米材料的材料特性和几何特征以及纳米材料的边界条件，由振动方程计算出该纳米材料的固有频率与所受的轴向拉力的关系，即纳米材料的f-T曲线；根据上述测得的固有频率f，得到微小拉力T的大小。

Chapter seven studies the methods of finding resonance frequency of centrifugal worm housing, analyses the relationship between the sound radiation of fan and wheel tip velocity index under different worm housing sound impedance and a new noise control method is presented for centrifugal fan.

第七章，研究了离心风机蜗壳基频共振频率及高阶模态频率的确定方法，分析了蜗壳声阻抗及其对叶轮声辐射轮缘速度指数的影响，为风机的降噪提供了一种新的途径。

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。

The theoretical method presented here can be employed to forecast the shift of the resonance wavelength, and to help the design and fabrication of the metal-coated LPFG.

标 签 导波与光纤光学长周期光纤光栅金属包层光纤三层介质光纤包层模 guided wave and fiber optics long-period fiber grating metal-coated fiber three-layered optical fiber cladding modes

Furthermore, the dynamic resonance adjustment method is as follows: measuring capacitive current in real-time when the grid operates in normal, tuning arc-suppression coil and making it compensate for the capacitive current completely when single-phase-to-ground fault occurs.

引言消弧线圈的作用是当电网发生单相接地故障后，提供一电感电流IL 补偿接地电容电流IC，使接地电流减小，也使得故障相接地电弧两端的恢复电压速度降低，达到熄灭电弧的目的。

A new automatic image registration method was presented in this paper, which was based on projection technique and suitable for functional magnetic resonance imaging times series images.

利用投影技术，针对功能磁共振时间序列图像，介绍了一种新的自动图像配准方法。

A new automatic image registration method was presented in this paper, which was based on projection technique and suitable for functional magnetic resonance imaging times series images.

此资料不能下载点击报告错误站长将实时更新！利用投影技术，针对功能磁共振时间序列图像，介绍了一种新的自动图像配准方法。

Taking the items of"nominal frequency" and" adjustment coefficient " as a specification, this paper provides a practical calculation method for adjusting parameters of power frequency series resonance test equipment, which has been verified both in laboratory and on site.

引入&名义频率&和&调整系数&等参数作为量化依据，提出了一种现场调整工频串联谐振试验装置参数配合的工程计算方法，并已通过了实验室试验及现场参数配合示例的验证。

Moreover,it describles the advantages of using voltage series resonance method on GIS in site,and thus the performance of field testing de- vice developed by Guangdong Electric Power Research Institute and the test effect.

本文简要地叔述了 GIS 在现场安装后，进行耐压试验的必要性，耐压试验电压波形的选泽、标准及试验程序，并介绍了用串联谐振方法进行 GIS 现场耐压试验的优点，以及广东电力试验研究所研制成功的 GIS 现场耐压装置的性能和试验效果

The interaction between epirubicin hydrochloride and DNA such as calf thymus DNA, salmon DNA, herring sperm DNA was studied using resonance Rayleigh scattering method.

用共振瑞利散射光谱研究了盐酸表柔比星与小牛胸腺DNA、鲑鱼DNA、鲱鱼精DNA和酵母RNA等核酸之间的相互作用。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。