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Prof. Ahmed G. Radwan

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Monthly Archives: January 2025

Design of fopid controller for a dc motor using approximation techniques

This paper introduces a study of fractional-order PID (FOPID) controller applied to a DC motor

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Power tracking controller design for photo-voltaic systems based on particle swarm optimization technique

Solar energy turns into a promising supply of electricity, so structures of Photo-voltaic (PV) regularly use a maximum power point tracking (MPPT) way to deliver the highest probable power to the load continuously

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Fractional-Order Relaxation Oscillators Based on Op-Amp and OTRA

This paper introduces closed formulas of two topologies of fractional-order relaxation oscillators

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Permutation techniques based on discrete chaos and their utilization in image encryption

To achieve the Shannon’s confusion and diffusion properties, an image encryption algorithm should include permutations and substitutions

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FPGA Implementation of X- and Heart-shapes Controllable Multi-Scroll Attractors

This paper proposes new multi-scrolls chaotic systems which is called the X-shape

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Fully digital 1-D, 2-D and 3-D multiscroll chaos as hardware pseudo random number generators

This paper introduces the fully digital implementation of a 1-D multiscroll chaos generator based on a staircase nonlinearity in the 3rd-order jerk system using the Euler approximation

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A low start up voltage charge pump for thermoelectric energy scavenging

In this paper, an ultra-low-voltage charge pump is presented

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Hermite polynomials in the fractional order domain suitable for special filters design

This paper introduces the design procedure for the low pass filter based on Chebyschev polynomials of fractional power of any order

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Parameter Identification of Commercial Li-ion Batteries with Marine Predator Algorithm

The accurate identification of Li-ion battery models is important to ensure efficient and safe operating conditions

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Secure DS-CDMA spreading codes using fully digital multidimensional multiscroll chaos

This paper introduces a generalized fully digital hardware implementation of 1-D, 2-D and 3-D multiscroll chaos through sawtooth nonlinearities in a 3rd order ODE with the Euler approximation, wherein low-significance bits pass all NIST SP

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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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Get In Touch

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