Results 1 to 10 of about 7,169,794 (272)

Simple circuit equivalents for the constant phase element. [PDF]

open access: yesPLoS ONE, 2021
The constant phase element (CPE) is a capacitive element with a frequency-independent negative phase between current and voltage which interpolates between a capacitor and a resistor.
Sverre Holm   +2 more
doaj   +9 more sources

Unique Constant Phase Element Behavior of the Electrolyte–Graphene Interface [PDF]

open access: yesNanomaterials, 2019
We report a unique constant phase element (CPE) behavior ( 1 Z = Q 0 ( j ω ) α ) of the electrolyte−graphene interface with both Q 0 and α showing dependence on the gate voltage.
Jianbo Sun, Yuxin Liu
doaj   +7 more sources

Programmable constant phase element realization with crossbar arrays [PDF]

open access: yesJournal of Advanced Research, 2021
Introduction: Constant Phase Elements (CPEs) have been widely used in many applications due to the extra degree of freedom, which offers new responses and behaviors.
M.E. Fouda   +4 more
doaj   +5 more sources

Constant Phase Element in the Time Domain: The Problem of Initialization [PDF]

open access: yesEnergies, 2022
The constant phase element (CPE) is found in most battery and supercapacitor equivalent circuit models proposed to interpret data in the frequency domain.
Juan Antonio López-Villanueva   +1 more
doaj   +5 more sources

Revealing the role of the constant phase element in relaxor ferroelectrics [PDF]

open access: yesCommunications Physics, 2022
Relaxor ferroelectrics are a type of material exhibiting electrostriction whereby a change in the material shape occurs under an applied electric field; however, although known by the community for many years the underlying mechanisms of the phenomenon ...
Xavier Vendrell   +3 more
doaj   +6 more sources

Fractional-Order Chaotic Memory with Wideband Constant Phase Elements [PDF]

open access: yesEntropy, 2020
This paper provides readers with three partial results that are mutually connected. Firstly, the gallery of the so-called constant phase elements (CPE) dedicated for the wideband applications is presented.
Jiri Petrzela
doaj   +5 more sources

On the use of a constant phase element (CPE) in electrochemistry

open access: yesCurrent Opinion in Electrochemistry, 2022
Several techniques can be used to experimentally determine the interfacial capacitance of an electrode, which is a crucial parameter used for quantifying the efficiency of supercapacitors. However, the values obtained from cyclic voltammetry can be significantly different from those extracted from electrochemical impedance spectroscopy analysis.
Vincent Vivier   +2 more
exaly   +3 more sources

BioMem-FWK4α: A Fractional Windkessel–Constant Phase Framework for Analog Simulation and Frequency-Domain Interpretation of Biological Ion Channels [PDF]

open access: yesBiomedical Engineering and Computational Biology
Background Classical integer-order membrane and bioelectrical circuit models are useful for idealized ion-channel behavior, but they often fail to reproduce the distributed relaxation, power-law impedance, depressed Nyquist arcs, and memory-dependent ...
Jean Paul Teuguia   +6 more
doaj   +2 more sources

A High-Precision Circuit-Simulator-Compatible Model for Constant Phase Element Using Rational Function Approximation

open access: yesIEEE Journal of the Electron Devices Society, 2023
Constant phase elements (CPEs) are commonly used in bioelectronic systems, to model the impedance of bioelectrodes and electrode-electrolyte interfaces.
Yangkun Hou   +3 more
doaj   +1 more source

Difference between Charge–Voltage Relations of Ordinary and Fractional Capacitors

open access: yesFractal and Fractional, 2023
In an ordinary time-varying capacitor, there is debate on whether a time-domain multiplication or a time-domain convolution of capacitance and voltage determines charge.
Eirik Brenner Marthins, Sverre Holm
doaj   +1 more source

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