Results 11 to 20 of about 207,966 (250)

Calculation of a pure double-layer capacitance from a constant phase element in the impedance measurements

open access: yesZaštita Materijala, 2022
Considering literature of electrochemical impedance spectroscopy (EIS) it was discovered that for calculation of the value of double-layer capacitance (Cdl) from the constant phase element (CPE) two equations, with or without solution resistance (Rs ...
Vladimir D. Jović
doaj   +1 more source

Interfacial Regulation of Dielectric Properties in Ferroelectric Hf0.5Zr0.5O2 Thin Films

open access: yesIEEE Journal of the Electron Devices Society, 2021
The discovery of ferroelectricity in hafnium zirconium oxide (HZO) thin films has attracted wide attention from academia to industry due to the application in ferroelectric non-volatile random access memories (FeRAM) with prominent performance in ...
Minghao Shao   +9 more
doaj   +1 more source

Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis [PDF]

open access: yesJournal of Renewable Energy and Environment, 2019
The effect of the thickness of ceramic membrane on the productivity of microbial fuel cells (MFCs) was investigated with respect to the electricity generation and domestic wastewater treatment efficiencies. The thickest ceramic membrane (9 mm) gained the
Vajihe Yousefi   +2 more
doaj   +1 more source

A Single Parameter Voltage Adjustable Immittance Topology for Integer- and Fractional-Order Design Using Modular Active CMOS Devices

open access: yesIEEE Access, 2021
A simple single parameter adjustable immittance concept designed with modular active devices, fabricated in I3T $25~0.35~\mu \text{m}$ 3.3 V CMOS process of ON Semiconductor, is introduced.
Roman Sotner   +4 more
doaj   +1 more source

Homogeneity Characterization of Textile-Integrated Wearable Sensors based on Impedance Spectroscopy

open access: yesSensors, 2022
One of the main challenges during the integration of a carbon/polymer-based nanocomposite sensor on textile substrates is the fabrication of a homogeneous surface of the nanocomposite-based thin films, which play a major role in the reproducibility of ...
Hanen Nouri   +3 more
doaj   +1 more source

Fractional-Order Phase Shifters with Constant Magnitude Frequency Responses

open access: yesElektronika ir Elektrotechnika, 2019
This contribution presents and experimentally analyzes the idea how to reach the constant magnitude as well as the phase response in the fractional-order (FO) phase when shifting two-ports.
Roman Sotner   +4 more
doaj   +1 more source

Electrochemical Impedance Spectroscopy in the Characterisation and Application of Modified Electrodes for Electrochemical Sensors and Biosensors

open access: yesMolecules, 2022
Electrochemical impedance spectroscopy is finding increasing use in electrochemical sensors and biosensors, both in their characterisation, including during successive phases of sensor construction, and in application as a quantitative determination ...
Christopher M. A. Brett
doaj   +1 more source

Time domain characterization of the Cole-Cole dielectric model

open access: yesJournal of Electrical Bioimpedance, 2020
The Cole-Cole model for a dielectric is a generalization of the Debye relaxation model. The most familiar form is in the frequency domain and this manifests itself in a frequency dependent impedance.
Holm Sverre
doaj   +1 more source

Analogue Realization of Fractional-Order Dynamical Systems

open access: yesEntropy, 2013
As it results from many research works, the majority of real dynamical objects are fractional-order systems, although in some types of systems the order is very close to integer order.
Ladislav Pivka   +5 more
doaj   +1 more source

A Comparative Study of Two Fractional-Order Equivalent Electrical Circuits for Modeling the Electrical Impedance of Dental Tissues

open access: yesEntropy, 2020
Background: Electrical impedance spectroscopy (EIS) is a fast, non-invasive, and safe approach for electrical impedance measurement of biomedical tissues.
Norbert Herencsar   +3 more
doaj   +1 more source

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