查询词典 impedance

Hydrogen storage alloy electrode ; Hydrogen evolution reaction ; Overpotential ; Faradaic impedance

贮氢合金电极；氢气析出反应；超电势；法拉第阻抗

Competitive reaction ; Faradaic impedance ; equivalent circuit ; ratedetermining step

竞争反应；法拉第阻抗；等效电路；速控步骤

Changes of dielectric property of gastrocnemius induced by simulated weightlessness can be observed effectively by frequency domain impedance technique.

利用频域阻抗技术可以有效地观察到模拟失重导致的腓肠肌细胞介电特性发生的改变。

Based on the theory of radio-freqency impendence, the dielectric constant of water is much greater than that of oil, so they show different properties in the respect of radio impedance.

水的介电常数远大于油的介电常数，因而两者呈现不同的射频阻抗是油品含水量测量的理论依据。

In this paper, the generator model of constant transient voltage and the invariableness impedance model was used, and the saliency of generator is included; through the analysis of the characteristic of the network equation calculation in the transient stability analysis, a new node ordering algorithm is proposed. Better initial value can accelerate the convergence rate of the networking equations, reduce the number of iterations, thus to cut down the amount of calculating time.

本文首先建立了适合于暂态稳定分析的简单模型，其中发电机采用E_q恒定模型，考虑了发电机的暂态凸极效应，负荷采用恒定阻抗模型；研究了电力系统的暂态稳定分析方法，指出目前数值积分暂态稳定计算方法中存在的不足，主要是网络方程的求解速度过慢；分析了暂态稳定计算中网络方程的特点，将稀疏技术应用于网络方程的求解，提出了一种新的节点编号方法——最小度最小有源节点道路集算法，减少了网络方程的计算量；在进行交替迭代求解时，将预测算法应用于每一积分步网络方程功角和电压的初值估计当中，应用自回归算法和广义延拓算法，期望给出一个更有效的电压和功角初值方案，来加快方程的收敛过程，减少方程迭代的次数，以提高计算速度。

As a part of this key program from China Natural Science Foundation, this research focuses on the electrochemical reactions and oxidization products on the surfaces of jamesonite and marmatite, and on the change of their interfacial structures and their electrochemical mechanisms by various methods of thermodynamic, electrochemistry (such as Tafel, constant potential step, cycle voltammetry, AC impedance) and IR, UV spectra when the collectors, adjusting reagents act with the sulfide minerals in the flotation system so that the electrochemical conditions to float selectively the minerals can be decided.

本研究作为该国家自然科学重点基金项目的一部分，采用热力学、电化学(Tafel、循环伏安、恒电位阶跃和交流阻抗法)以及光谱等多种研究手段，集中研究了浮选体系中脆硫锑铅矿、铁闪锌矿表面的电化学反应及氧化产物，研究这两种矿物与捕收剂、调整剂相互作用时的界面结构变化及电化学机理，阐明了使药剂选择性捕收或选择性抑制这些硫化矿物的电化学条件。

C. Koraн, the formation of a composite filter requires such processes as equivalent network transformations and impedance-level transformations.

在利用所提出的影象参数最少电感元件带通滤波器各种半节来构成复合滤波器时，其复合过程一般比较复杂，通常要经过等效网络变换、阻抗水平变换等步骤才能合并，由于这种类型结构的元件系数计算公式形状较繁，所以更增加了应用时的不便。

The proposed coupler featuring utilizly laddered stubs and stepped impedance on a single circuit board case achieves compact size. The requirement since both are distributed elements system which utilizes reduced length for the replacement of traditional microstrip line which acted as equivalent capacitances and inductances.

上述之宽频支干耦合器，是设计在单层板的结构，且不论是步阶式阻抗或是梯状开路残段的设计方式，均有缩小化的效果；因为步阶式阻抗与梯状开路残段都是散步式元件，所以可用较短的长度取代传统微带线之等效电感或电容值。

Impedance inversion is an important method in processing seismic lithologic inversion.

波阻抗反演是进行地震岩性反演的一个重要手段。

The conventional impedance inversion method is difficult to solve the problems in the exploration and development of lithologic reservoirs.

常规波阻抗反演难以解决岩性油气藏勘探开发的难题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。