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Prof. Ahmed G. Radwan

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Posts in category: Journal

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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Enhanced hardware implementation of a mixed-order nonlinear chaotic system and speech encryption application

2020Elsafty A.H.JournalMadian A.H.Radwan A.G.Said L.A.Tolba M.F.

This paper introduces a study for the effect of using different floating-point representations on the chaotic system’s behaviour

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Fundamentals of fractional-order LTI circuits and systems: number of poles, stability, time and frequency responses

2016Hassan H.N.JournalRadwan A.G.Semary M.S.

This paper investigates some basic concepts of fractional-order linear time invariant systems related to their physical and non-physical transfer functions, poles, stability, time domain, frequency domain, and their relationships for different fractional-order differential equations

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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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Generalized fractional logistic map encryption system based on FPGA

2017Abu-Elyazeed M.F.Ismail S.M.JournalMadian A.H.Radwan A.G.Rezk A.A.Said L.A.Soliman A.M.

This paper introduces the design of a generalized fractional order logistic map suitable for pseudorandom number key generators and its application in an encryption system based on FPGA

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Multiple Pinch-Off Points in Memristive Equations: Analysis and Experiments

2019Fouda M.E.Hamed E.M.JournalRadwan A.G.

Pinched hysteresis behavior is considered evidence of the existence of the memristive element

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Optimized Edge Detection Technique for Brain Tumor Detection in MR Images

2020Abdel-Gawad A.H.JournalRadwan A.G.Said L.A.

Genetic algorithms (GAs) are intended to look for the optimum solution by eliminating the gene strings with the worst fitness

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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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Generalized double-humped logistic map-based medical image encryption

2018Abu-Elyazeed M.F.Ismail S.M.JournalMadian A.H.Radwan A.G.Said L.A.

This paper presents the design of the generalized Double Humped (DH) logistic map, used for pseudo-random number key generation (PRNG)

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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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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
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