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Prof. Ahmed G. Radwan

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    • Fractional-Order
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HomeElwakil A.S.

Posts in category: Elwakil A.S.

High-Frequency Capacitorless Fractional-Order CPE and FI Emulator

2018Bertsias P.Elwakil A.S.JournalPsychalinos C.Radwan A.G.

A fractional-order capacitor and inductor emulator, implemented using MOS transistors, instead of passive capacitors, is introduced in this paper

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On the stability of linear systems with fractional-order elements

2009Elwakil A.S.JournalRadwan A.G.Sedeek A.Soliman A.M.

Linear integer-order circuits are a narrow subset of rational-order circuits which are in turn a subset of fractional-order

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Design and Implementation of an Optimized Artificial Human Eardrum Model

2020Bertsias P.Elwakil A.S.JournalMohsen M.Psychalinos C.Radwan A.G.Said L.A.

This paper introduces a fractional-order eardrum Type-II model, which is derived using fractional calculus to reduce the number of elements compared to its integer-order counterpart

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Design equations for fractional-order sinusoidal oscillators: Four practical circuit examples

2008Elwakil A.S.JournalRadwan A.G.Soliman A.M.

Four practical sinusoidal oscillators are studied in the general form where fractional-order energy storage elements are considered

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An expression for the voltage response of a current-excited fractance device based on fractional-order trigonometric identities

2012Elwakil A.S.JournalRadwan A.G.

We report a closed-form expression of the voltage response of a current-excited fractance device

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FPGA implementation of a chaotic oscillator with odd/even symmetry and its application

2020Aloul F.Elnawawy M.Elwakil A.S.JournalOrabi H.Radwan A.G.Sagahyroon A.Tolba M.F.

We propose a mathematical system capable of exhibiting chaos with a chaotic attractor which is odd symmetrical in the x ? y phase plane but even symmetrical in the x ? z and y ? z phase planes respectively

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Nonlinear charge-voltage relationship in constant phase element

2020Allagui A.Das S.Elwakil A.S.Fouda M.E.JournalPsychalinos C.Radwan A.G.

The constant phase element (CPE) or fractional-order capacitor is an electrical device that has an impedance of the form Z(s)=1/C?s?, where C? is the CPE parameter and ? is a fractional dispersion coefficient of values between 0 and 1

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Transient and Steady-State Response of a Fractional-Order Dynamic PV Model under Different Loads

2018Abdelaty A.M.Elwakil A.S.JournalPsychalinos C.Radwan A.G.

In this paper, a fractional-order dynamic model of the photovoltaic (PV) solar module is introduced

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Pinched hysteresis loops in non-linear resonators

2021Elwakil A.S.Fouda M.E.JournalMajzoub S.Radwan A.G.

This study shows that pinched hysteresis can be observed in simple non-linear resonance circuits containing a single diode that behaves as a voltage-controlled switch

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Review of fractional-order electrical characterization of supercapacitors

2018Abdelkareem M.A.Allagui A.Elwakil A.S.Fouda M.E.Freeborn T.J.JournalMaundy B.J.Radwan A.G.Said Z.

The tests and calculation of the key performance metrics of supercapacitors including capacitance, power and energy stored are commonly reported by the academia and the industry based on formulæ valid only for ideal capacitors

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RECENT PUBLICATIONS
  • Valorization of Agricultural and Marine Waste for Fabrication of Bio-Adsorbent Sheets
  • MPPT for a Partially Shaded PV System Using Accelerated Particle Swarms
  • On Fractional-order Capacitive Wireless Power Transfer System
  • Time-domain Li-ion Battery Modeling under Staircase Charging and Discharging
  • Progressive Multi-Secret Sharing of Color Images Using Lorenz Chaotic System
RESEARCH TOPICS

Bio-impedance for Food Quality Biomedical and Robotic Engineering Biomedical Engineering Chaotic & Coding Systems with Applications Chaotic Systems and Applications Design and Applications of Mem-elements Fractional-order systems Modeling and Applications of New Electrical Elements and Recent Technology Modeling of Supercapacitors and Energy Storage Elements Wastewater Treatments

AHMED RADWAN

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