查询词典 impedance

Electrical impedance tomography; image reconstruction; forward and inverse problem; finite element method; complete electrode model

医药卫生科技，医药卫生方针政策与法律法规研究，医疗器械电阻抗断层成像；图像重建；正反问题；有限元法；全电极模型

The electrochemical properties of the corrosion of 430 ferrite stainless steel with different RE contents in the 3.5wt% NaC1 solution were studied by means of EIS (electrochemistry impedance spectroscopy). And the characteristics of textural component were quantitatively analyzed by the orientation distribution functions and inverse pole figure.

通过电化学阻抗谱研究了不同稀土含量430铁素体不锈钢在质量分数为3.5%中性氯化钠溶液中的腐蚀电化学特征，通过ODF分析和反极图定量计算研究了含稀土430铁素体不锈钢中织构组分特征。

As a typical example of the application of system theory to the material science, the method of transfer function has been applied in this paper to convert the operational impedance from frequency domain to time domain by inverse Laplace transform in order to study the hydration dynamics of cement .

应用传递函数方法，通过Laplace逆变换将运算阻抗从频域转换成时域，以此求得水泥水化动力学曲线，结果与其它方法相符。此方法还可了解水泥水化过程的机理，对动力学过程具有普遍性

In chapter 4, the prime reasons for the ill-posed inversion are analyzed at first and then the remedy method is described. The basic formula of stochastic inversion method tor impedance with broarband constraint of well log is deduced from basic level.

第二章首先将信号分析中的MA过程的定阶问题引入到地震子波的提取中，发展了利用地震记录的高阶累积量矩阵的特征值的变化估计地震子波的有效长度的方法。

Circuit bandwidth may be calculated in the same manner as for the inverting amplifier, but input impedance is somewhat more complicated.

电路带宽的计算方式和反相电路相同。输入阻抗的计算方式相对复杂。

In high-impedance current-input inverting configurations, where a length of shielded wire is used to guard the lead from the current source to the amplifier's inverting input, the guard should either be driven by a buffer at the same potential as the non-inverting input, or be tied directly to the non-inverting input, with a second outer shield connected to the signal's reference point.

如果将运放接成反相放大器的形式，并且在信号源与运放反相端之间用一段带有屏蔽层的导线来充当的防护罩，那么对防护罩的处理有两种选择：要么用一个缓冲跟随器来驱动，跟随器输出端与运放同相端电位相等，而且除跟随器外，防护罩不与其他点接触；要么将防护罩直接接到运放的同相端，然后在其外面加一个屏蔽层，并且将屏蔽层连接到信号的参考电位。

XRD, Raman spectroscopy, DC four-probe, impedance spectroscopy and SEM were applied to analyze the crystal structure, ionic conductivity and microstructure, respectively.

用XRD，Raman光谱，直流四电极，交流阻抗谱和扫描电镜分析了电解质的晶体结构，电化学性能和显微结构。

This paper describes a systematic theoretical analysis and derivation of the synthesis of impedance of irrational function into a passive network.

本文主要对无理函数的阻抗函数综合为无源网络的问题进行了系统的理论分析和推导，并从以下三个方面进行论述：综合方法、正确性以及在载波通信中的具体应用。

Simulation computation method for calculating the impedance matrix of double gap cavity of klystron.

速调管双间隙腔的间隙阻抗矩阵频率特性的模拟计算方法。

Aimed at the zone of interest in the Q 3D seismic survey, which is characterized by thin sand body as well as the quickly lateral alternation, three inversion methods of Strata software are put into use, including the 3-D wave impedance inversion, the well log parameter inversion, and multi\|attribute gamma inversion.

针对Q三维地震工区目的层砂体薄、横向变化快的特点，在Strata软件上相继采用了三维波阻抗反演、测井参数反演和多属性伽马反演3种反演方法进行试验，最终确定了多属性伽马反演方法能较好地解决利用地震资料进行储层预测的一些问题，从而为工区勘探开发提供了可靠的高精度反演资料。

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。