查询词典 impedance

Technically, the damping factor is the specified load impedance( in use, that'd be the speaker system ) divided by the amplifier's output impedance.

技术上，阻尼因子就是指定的负载阻抗（践中，也就是扬声器系统）以放大器的输出阻抗。

The impedance of a probe-coil above a conductive plate with finite thickness was derived and expressed in series expansion,and then the impedance characteristics of the coil due to lift-off variation were analyzed.

推导了线圈置于有限厚度的金属平板上方时其阻抗计算的级数表达式，并以此为基础分析了由线圈的提离改变所引起的线圈阻抗的变化特征。

This is called an impedance discontinuity or an impedance mismatch.

这被称为阻抗不连续或阻抗不匹配。

In this paper, a new medical impedance imaging modality (Magnetic resonance electrical impedance tomography-MREIT) is first introduced, including its mathematical theories and the reconstruction algorithms. Then its application in early breast cancer detection research is introduced in detail. Finally, its future research direction and major problems are summarized.

本文在此前提下介绍了一种高分辨率的医学电阻抗成像技术－磁共振电阻抗成像技术的成像原理与成像算法，然后介绍了MREIT技术在早期乳腺癌检测方向的应用，最后分析了该研究方向的发展前景以及目前存在的问题。

Magnetic Resonance Electrical Impedance Tomography is a new, noninvasive conductivity imaging modality that integrates current density imaging and traditional electrical impedance tomography.

基于磁共振成像系统的生物电阻抗成像技术是近几年发展起来的新型非入侵式成像技术。

In Chapter 2, resonance properties of stepped-impedance resonator are analyzed with transmission line theory. Resonance conditions and electrical lengthes of two-section and tri-section stepped-impedance resonators are mainly analyzed, which provide the theory foundation for filter design.

第二章运用传输线理论分析了阶梯阻抗谐振器的谐振特性，主要分析了两个截面和三个截面阶梯阻抗谐振器的谐振条件和电长度，为滤波器的设计提供了理论依据。

Objective To develop a new Two-step magnetic resonance electrical impedance tomography algorithm based on radial basic function neural network for imaging electrical impedance distribution of a head.

目的基于径向基函数（radial basic function，RBF）神经网络的两步核磁共振电阻抗成像（magnetic resonance electrical impedance tomography，MREIT）算法，对人体头部进行MREIT。

YAN Dandan,ZHANG Xiaotong,ZHU Shanan,Bin HeAbstract: Objective To develop a new Twostep magnetic resonance electrical impedance tomography algorithm based on radial basic function neural network for imaging electrical impedance distribution of a head.

目的 基于径向基函数(radial basic function，RBF)神经网络的两步核磁共振电阻抗成像(magnetic resonance electrical impedance tomography，MREIT)算法，对人体头部进行MREIT。

an equivalent model of Al electrolytic capacitor has been studied in this paper. The change law of the equivalent serial capacitance, dissipation factor and impedance of Al electrolytic capacitor has been discussed at different frequencies with Agilent4395A Impedance Analyzer.

研究了铝电解电容器的等效模型，讨论了铝电解电容器在不同频率下，其等效串联电容、介质损耗因子、阻抗随频率变化特性，采用Agilent4395A阻抗分析仪测量了铝电解电容器参数、阻抗-频率特性等。

In the procedure of computing impedance matrix elements, an improved method of accurate evaluation of retarded time integrals with singularity in self-impedance elements in MOT scheme is presented, which improve the late-time stability of MOT scheme.

在阻抗矩阵元素计算中，研究了一种基于Duffy变换的包含时间迟滞项的奇异积分的精确计算方法，提高了计算精度，改善了MOT求解积分方程中的晚时不稳定性。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。