activity
20202025
most citedNon-Debye impedance and relaxation models for dissipative electrochemical capacitors

15 citations · 21 across the 10 of their papers we have counts for

collaborators

10 papers

physics.app-ph2025

On the behavior of a distributed network of capacitive constant phase elements

Anis Allagui, Ahmed S. Elwakil

As a generalization of integer-order calculus, fractional calculus has seen tremendous applications in the past few years especially in the description of anomalous viscoelastic pr…

nlin.CD2024★ 2 cited

Using Intermittent Chaotic Clocks to Secure Cryptographic Chips

Abdollah Masoud Darya, Sohaib Majzoub, Ali A. El-Moursy +3

This letter proposes using intermittent chaotic clocks, generated from chaotic maps, to drive cryptographic chips running the Advanced Encryption Standard as a countermeasure again…

physics.app-ph2023

Theory and Application of the Fractional-order Delta Function Associated with the Inverse Laplace Transform of the Mittag-Leffler Function

Anis Allagui, Ahmed S. Elwakil

This paper is devoted to the study of the -Wright function () which is the inverse Laplace transform of the single-parameter Mittag-Leffler (ML) function (). Be…

physics.app-ph2023

Tikhonov regularization for the deconvolution of capacitance from voltage-charge response of electrochemical capacitors

Anis Allagui, Ahmed Elwakil

The capacitance of capacitive energy storage devices can not be directly measured, but can be estimated from the input and output signals expressed in the time or frequency domains…

physics.app-ph2023

Observation of a Pinched-Loop in a Current-Excited Inductive Circuit

Ahmed S. Elwakil, Costas Psychalinos, Brent J. Maundy +1

In this work, we show that a pinched-loop can be observed in the voltage-current plane when a series R-L circuit is current excited. Specifically, the resistance (R) in this circui…

physics.app-ph2023

Time-domain Response of Supercapacitors using their Impedance Parameters and Fourier Series Decomposition of the Excitation Signal

Anis Allagui, Mohammed E. Fouda, Ahmed Elwakil +1

Supercapacitors are mostly recognized for their high power density capabilities and fast response time when compared to secondary batteries. However, computing their power in respo…

physics.app-ph2022★ 4 cited

Further Experimental Evidence of the Dead Matter Has Memory Conjecture in Capacitive Devices

Anis Allagui, Di Zhang, Ahmed Elwakil

This study provides new sets of experimental results supporting Westerlund's conjecture that Dead Matter Has Memory. Memory effects in the dynamic response of electric double-layer…

physics.app-ph2022★ 15 cited

Non-Debye impedance and relaxation models for dissipative electrochemical capacitors

Anis Allagui, Hachemi Benaoum, Ahmed S. Elwakil +1

Electrochemical capacitors are a class of energy devices in which complex mechanisms of accumulation and dissipation of electric energy take place when connected to a charging or d…

physics.app-ph2022

Time-Domain and Frequency-Domain Mappings of Voltage-to-Charge and Charge-to-Voltage in Capacitive Devices

Anis Allagui, Ahmed S. Elwakil, Chunlei Wang

In this work, we aim to show that there are generally four possible mapping functions that can be used to map the time-domain or frequency-domain representations of an applied volt…

eess.SY2020

Pinched Hysteresis Loops In Nonlinear Resonators

A. S. Elwakil, M. E. Fouda, S. Majzoub +1

This paper shows that pinched hysteresis can be observed in simple nonlinear resonance circuits containing a single diode that behaves as a voltage-controlled switch. Mathematical…