Prof. Ahmed Radwan

Professor

Faculty Office Ext.

1758

Faculty Building

UB2

Office Number

S21

Bio

Biography

Prof. Ahmed G. Radwan is Professor of Engineering Mathematics at Nile University, Egypt, and is currently on leave from Cairo University’s Department of Engineering Mathematics and Physics. He has held numerous senior academic and administrative positions, including Vice President for Research, Dean of Graduate Studies, Director of Research and Sponsored Projects, Director of the Nanoelectronics Integrated Systems Center, Acting Dean of Engineering and Applied Sciences, and Head of Marketing and Communications at Nile University. He has also served in leadership and visiting roles at Cairo University, KAUST in Saudi Arabia, and McMaster University in Canada.

An internationally recognized researcher, Prof. Radwan works across engineering mathematics, fractional-order systems, nonlinear dynamics, chaotic circuits, circuit theory, secure communication, cryptosystems, and applied artificial intelligence. According to Scopus, he has published more than 500 indexed papers, received over 13,000 citations, and achieved an h-index of 58. He is also the author or co-author of 13 international books and 26 book chapters. His global standing is reflected in his repeated inclusion among Stanford/Elsevier’s World’s Top 2% Scientists and his ranking among Egypt’s leading researchers.

His research combines mathematical theory with practical engineering applications, covering areas such as oscillators, filters, impedance matching, bioimpedance modeling, secure computation, and intelligent systems. He has supervised more than 50 Master’s and PhD students, with ten receiving best thesis awards, while many of his graduates have advanced to prominent academic, technical, and executive roles.

Prof. Radwan has also made a major contribution to scientific capacity building. He founded the NILES International Conference and the Undergraduate Research Forum, initiatives that have engaged thousands of researchers, students, institutions, and international contributors. NILES has published more than 800 IEEE-indexed papers, while UGRF and related competitions have supported thousands of projects and contributed to awards, Scopus-indexed outputs, and more than 15 startups.

His innovation record includes six US and international patents in areas such as oscillators, fractional-order impedance matching, digital chaotic systems, and pseudo-random number generation. He has also led or contributed to funded projects exceeding USD 1 million in secure communication, AI, smart agriculture, sensing, robotics, and environmental technologies.

Beyond research, Prof. Radwan has served on major national and international scientific committees and currently chairs Egypt’s Basic Sciences Research Council. His many honors include national and regional awards for leadership, research excellence, engineering, applied sciences, and mathematical sciences. 

Recent Publications

This paper proposes a hardware platform implementation on FPGA for two fractional-order derivative operators. The Grünwald-Letnikov and Caputo definitions are realized for different fractional orders. The realization is based on non-uniform segmentation algorithm with a variable lookup table. A generic implementation for Grünwald-Letnikov is proposed and a 32 bit Fixed Point Booth multiplier radix

This paper is an extension of V-shape multi-scroll butterfly attractor in the fractional-order domain. The system complexity is increased by the new dynamics introduced by the fractional operator which make it more suitable for random signal generator. The effect of system parameters on controlling the attractor shape is investigated and compared with the integer order attractor. Maximum Lyapunov

This paper discusses the FPGA implementation of the fractional-order derivative as well as two fractional-order chaotic systems where one of them has controllable multi-scroll attractors. The complete hardware architecture of the Grünwald-Letnikov (GL) differ-integral is realized with different memory window sizes. As an application of the proposed circuit, a complete fractional-order FPGA

Pinched hysteresis is considered to be a signature of the existence of memristive behavior. However, this is not completely accurate. In this chapter, we are discussing a general equation taking into consideration all possible cases to model all known elements including memristor. Based on this equation, it is found that an opposite behavior to the memristor can exist in a nonlinear inductor or a

Due to the importance of the mutators for active circuit realizations, this paper investigates different three port mutator circuits that can be used to implement a floating impedance. The analytical equations that govern the proposed circuits as well as the necessary conditions under different configurations are introduced to realize positive and negative impedances. The proposed circuits are

In this paper, we introduce an analytical solution of the fractional derivative gas transport equation using the power-series technique. We present a new universal transform, namely, generalized Boltzmann change of variable which depends on the fractional order, time and space. This universal transform is employed to transfer the partial differential equation into an ordinary differential equation

This paper is dedicated to develop a fractional order model of the rate of change of cancerous blood cells in Chronic Myeloid Leukaemia using fractional-order differential equations as well as tackling the factors that affect this rate and compare between them. The simulated cases (using MATLAB) prove that the proposed model is doable in terms of the variables positions in the equations and its

This paper presents a secured highly sensitive image encryption system suitable for biomedical applications. The pseudo random number generator of the presented system is based on two discrete logistic maps. The employed maps are: the double humped logistic map as well as the fractional order logistic map. The mixing of the map parameters and the initial conditions x0, offers a great variety for

This paper discusses the diffusion and reaction behaviors of catalyst pellets in the fractional-order domain as well as the case of nth-order reactions. Two generic models are studied to calculate the concentration of reactant in a porous catalyst in the case of a spherical geometric pellet and a flat-plate particle with different examples. A controlled Picard analytical method is introduced to

Research Tracks

1) Fractional-Order Systems

2) Memristor

3) Bifurcation

4) Encryption

5) Chaos

Grants

Projects

Research Project

Wireless Monitoring of Fruit Growth Using an Electrical BioImpedance Sensor Device

The idea of this project is to graph the quality of fruits and vegetables similar to ECG in humans. The purpose of this project is to build a prototype for a portable wireless electronic device capable of measuring live tissue with fruits or vegetables using bioimpedance and some mathematical & electrical models then transmitting data to the base station. This project will add scientific and

Research Project

Software Algorithm and Hardware Implementations of Information Security Using Number Theory and Chaotic Systems

The project aims at proposing novel software algorithms for information security and their hardware implementations. The algorithms will utilize different methods based on number theory and chaos theory. Cryptography and information hiding systems will be developed for different media data types such as text, image, audio and video. The project will investigate different classes of symmetric

Research Project

FPGA/FPAA Implementation of Fractional-order Systems

Fractional Calculus (FC) has been proved through numerous research examples to be a superior tool for system description to the narrow integer order domain. This is achieved through the extra parameters introduced by allowing the differential or integral orders to take non-integer values. The promising capabilities of fractional-order devices challenge the research to find a way to simulate its

Research Project

Ternary Logic Gates Design

Nowadays, the demand for building CNTFET-based ternary systems has been increasing. The current two-level binary logic and MOSFET technology have been facing limitations in chip size, design complexity, and power consumption. In this proposal, the method to design Ternary logic gates based on CNTFET and Memristor is proposed. Implementing Ternary Full-Adders and Multipliers is also discussed in

Research Project

Two Port Fractional-order Oscillators and Filters Suitable for Tissue Modeling

Objective: This project aims to study the relation between the mathematical fundamentals of fractional calculus and the concept of two-port circuit networks in the design of oscillators and filters with their analyses. These concepts will be applied to the Cole-Cole model, suitable for agriculture and biomedical applications tissue modelling. Outcomes: Literature Surveys (2 Journals + 2 Chapters)

Research Project

Development and Manufacturing of Soft Actuated Under Water Robotics

Objective/Contributions: Surveying research papers about transferring hard robot characteristics to soft one. Use additive manufacturing techniques to minimize the assembly process of the ROV actuator. Work on soft control and soft sensing system and study its ability to be used in soft robotics. Discuss biomimicking ROV. Create a hub for soft robotics at Nile University for participating in Egypt

Research Project

Fractional order Image Processing Platform for Retinal Pigmontosa Patients

Objective/Contributions: Investigation and categorization of the different methodologies in fractional operator discretization. Investigate the effect of the number of memory samples on the performance of different discretization schemes and recommend the scheme which gives the best performance for the least number of memory samples. Discuss the stability analysis of the discretized operators and

Research Project

An Underwater AR based System for Marine Life Detection and Classification for Divers and Tourists

Objective/Contributions: Collecting and annotating an extensive dataset of fish images representing the fish species in the red sea. Building a machine learning model capable of detecting and classifying fish species from a real-time video. Building a proof-of-concept prototype for the AR hardware that is capable of capturing the live video of marine life, running the classification model, and

Research Project

Multi-stage Low-cost Treatment of Dyes and Paints Wastewater by Coagulation, Adsorption, and Filtration for Reuse in Several Application

Objective/Contributions: Designing and constructing a low-cost, efficient, rapid environmentally friendly treatment system for textile and paint industries' recycling and treatment. Conducting a comprehensive literature database of all the reuse and treatment methods, in paints wastewater treatment and all the pilot plants, and treatment plants used success stories that successfully reduce the

Research Project

Bio-Mimetic Locomotion of Soft Turtle Robot

Abstract Amphibious robots have great potential for a variety of applications, but their design can be complex and expensive. Bio-inspired soft robotics offers a promising solution, as their actuators can perform evenly on land and underwater. Our robot takes inspiration from turtle locomotion as it bridges the gap between traditional four-legged robots and swimming robots. The robot can be

Research Project

Bio-inspired Soft Robot for Monitoring Coral Reefs

Abstract Coral reefs play a crucial role in supporting a quarter of all aquatic life, but their existence is now threatened by ongoing climate changes. Our project aims to develop an underwater soft robot that can mimic the morphology and shape of actual marine creatures and to imitate their swimming motion. This robot can play a critical role as monitoring platform to understand the reefs