阻抗

A new method relying on the Stroh formulism and the theory of the surface impedance tensor was developed to investigate the dynamic instability of interfacial slip waves.The concept of the surface impedance tensor was extended to the case where the wave speed is of a complex value,and the boundary conditions at the frictionally contacting interface were expressed by the surface impedance tensor.Then the boundary value problem was transformed to searching for zeroes of a complex polynomial in the unit circle...

基于Stroh公式和表面阻抗张量理论，提出了研究界面滑移波动态失稳问题的一种新的方法·该方法将表面阻抗张量概念推广到复波速域，并将摩擦接触界面上的边界条件以表面阻抗张量表示·最终将边值问题化归为求解一个复多项式在单位圆内的根·以弹性半空间与刚体平面相对稳态摩擦滑移为例进行了详细的分析，导出了一个4次复特征方程并讨论了方程在单位圆内解的特性，给出了滑移界面波失稳条件的显式解析表达式

The one order differential model and convolutional model of impedance formula of amplitude versus offset inversion were established. Impedance inversion formula from AVO was derived based on Bayesian framework. Methods of using Huber function as prior model parameter distribution and covariance matrix from well log as constrains were developed. The P-wave impedance, S-wave impedance and density were calculated by the conjugate gradient algorithm.

为此建立了振幅随偏移距变化波阻抗反演公式的一阶差分模型及褶积模型，推导了基于贝叶斯理论的AVO波阻抗反演公式，给出了采用Huber分布作为模型参数的先验分布及测井数据的参数协方差矩阵作为约束条件的实现方法，并利用共轭梯度法计算了纵、横波阻抗及密度。

By applying the law of energy transformation and conservation in electromagnetism to a sinusoidal steady state linear exchange network,the aauthors obtain a new expression of the law in which the merits of such energy forms as resistance,capacitance,self induction and mutual induction of four kinds of elements are embodied.

利用式中统一体现的电阻、电容、自感和互感4种元件能量形式的优点，以及网络现代场论关于元件复阻抗率和积分形式的复阻抗等概念，分别给出4种元件具体的积分形式复阻抗。

Considering of the resistive component in the output impedance and line impedance, the reason of the active and reactive power sharing improperly is analyzed. The decouple droop control scheme is presented.

该文在考虑逆变器输出阻抗和线路阻抗中阻性分量的基础上，分析了因逆变器模块滤波电感和线路阻抗差异造成的无功分配不均的原因，提出了功率下垂解耦控制方法。

A new algorithm for extraction of tissue impedance spectroscopy parameters based on optimization method is proposed in this paper.

对生物组织的阻抗频率特性进行分析，就是从阻抗频谱数据中提取生物组织的阻抗特征参数。

At last, a model is proposed to describe time effect of the rock interface friction resistance when viscous sliding and displacement softening occur,the relaxation model of friction resistance.

基于岩石块体摩擦滑动试验反映的特征规律，本文分析了岩块随时间滑动的界面阻抗机理，并建立粘滑位移弱化时反映滑动界面阻抗时间效应的模型公式阻抗松弛模型。

It has been proved, that the attenuation value of bridge circuit is not equal to the sum of two terminal attenuation, and it concerned with impedance of wave trap, substation bus impedance, and phase-angle of...

分析和计算表明，桥路衰减的数值不能简单地看作两个终端衰减之和，而与阻波器阻抗、线路阻抗、变电站母线阻抗和邻相同频寄生信号的相位角等参数有关。

After the analysis of the difficulties of force tracking in impedance control, the advantages and disadvantages of off-line parameter estimate algorithm, on-line parameter estimate algorithm and adaptive force control algorithm have been contrastively studied in the force regulation of HIT-1 dextrous robot hand.

本文在分析阻抗控制力跟踪难点的基础上，对比研究了离线环境参数估计法、在线环境参数估计法和自适应力跟踪法三种阻抗控制的力跟踪方法，并且从实际应用的角度出发提出了适合于HIT-1机器人灵巧手阻抗控制的自适应力跟踪方法。

The results of the simulation showed that the GMI ratio for a sandwich structured film sandwiching high conductive metal layer was several times lager than that for a monofilm, and the maximum impedance change ratio occurred at the frequency of about 10 MHz which was lower than that of single layer film.

模拟的结果表明，中间夹高导电性材料的F/M/F型三明治薄膜的巨磁阻抗效应比同样厚度的单层磁性薄膜的巨磁阻抗效应要大很多，而且三明治薄膜出现阻抗最大变化时的频率大概在10MHz左右，比单层薄膜要低得多。

Taking the particularity of the connection scheme of novel converter transformer and its filter system into account, it's necessary to find out the relation between its commutated reactance and short-circuit impedances between windings and fundament frequency impedance of filter branch for impedance design of novel converter transformer and reactive power ...

考虑到新型换流变压器及其滤波系统的接线方案较为特殊，了解其换相电抗与绕组之间的短路阻抗及阀侧滤波支路的基频阻抗之间的关系，对新型换流变压器的阻抗设计和阀侧无功补偿度的优化配置是十分必要的。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。