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Prof. Ahmed G. Radwan

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    • Fractional-Order
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Posts in category: Journal

Extracting Optimized Bio-Impedance Model Parameters Using Different Topologies of Oscillators

2020Elwakil A.S.JournalMadian A.H.Mohsen M.Radwan A.G.Said L.A.

This paper demonstrates the possibility of extracting the single-dispersion and double-dispersion Cole-bio-impedance model parameters using oscillators (sinusoidal or relaxation)

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Effect of Different Approximation Techniques on Fractional-Order KHN Filter Design

2018Abdelaty A.M.Hamed E.M.JournalRadwan A.G.Said L.A.

Having an approximate realization of the fractance device is an essential part of fractional-order filter design and implementation

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Memristive Bio-Impedance Modeling of Fruits and Vegetables

2021Abdelrahman D.K.Fouda M.E.JournalMohammed R.Radwan A.G.Said L.A.

Recent works show that the plants can exhibit nonlinear memristive behavior when excited with low-frequency signals

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Center pulse width modulation implementation based on memristor

2019Elsafty A.H.Hassanein A.M.JournalMadian A.H.Radwan A.G.Said L.A.

This paper introduces two new versions for memristor-based center pulse-width modulator (PWM) circuits

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Fractional-order bio-impedance modeling for interdisciplinary applications: A review

2021Elwakil A.S.JournalMadian A.H.Mohsen M.Radwan A.G.Said L.A.

Bio-impedance circuit modeling is a popular and effective non-invasive technique used in medicine and biology to fit the measured spectral impedance data of living or non-living tissues

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Modeling and analysis of fractional order DC-DC converter

2018Abdelaty A.M.Azar A.T.Emira A.A.JournalRadwan A.G.

Due to the non-idealities of commercial inductors, the demand for a better model that accurately describe their dynamic response is elevated

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Cole bio-impedance model variations in daucus carota sativus under heating and freezing conditions

2019AboAlNaga B.M.Elwakil A.S.JournalMadian A.H.Radwan A.G.Said L.A.

This paper reports on the variations in the parameters of the single dispersion Cole bio-impedance model of Daucus Carota Sativus (carrots) under heating and freezing conditions

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On The Optimization of Fractional Order Low-Pass Filters

2016Abu El-Yazeed M.F.Ismail S.M.JournalMadian A.H.Radwan A.G.Said L.A.Soliman A.M.

This paper presents three different optimization cases for normalized fractional order low-pass filters (LPFs) with numerical, circuit and experimental results

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A Modified Differentiator Circuit for Extracting Cole-Impedance Model Parameters Using Meta-heuristic Optimization Algorithms

2021Ghoneim M.S.JournalMohammaden A.A.Mohsen M.Radwan A.G.Said L.A.

A differentiator-based set up is proposed as an alternative solution to measure bio-impedance

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Fractional calculus definitions, approximations, and engineering applications

2020Abdelaty A.M.Elwy O.JournalRadwan A.G.Said L.A.

The basic idea behind fractional calculus is that it considers derivatives and integrals of non-integer orders giving extra degrees of freedom and tuning knobs for modeling complex and memory dependent systems with compact descriptions

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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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  • NU Main Campus: 26 July Corridor, Sheikh Zayed City
  • agradwan@nu.edu.eg
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