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Prof. Ahmed Radwan

Vice President for Research

Faculty Office Ext.

1758

Faculty Building

UB2

Office Number

S21

Biography

Ahmed G. Radwan is the vice president for research at Nile University, Egypt and a professor in Mathematics and Physics department in Cairo University, Egypt. Also, he is an IEEE senior member and a member of the Applied Science Research Council, Specialized Scientific Councils (SSC), ASRT, Egypt. R Radwan was the former director of Nanoelectronics Integrated Systems Center (NISC) in Nile University, Egypt and Technical Center for Career Development (TCCD) in Cairo University, Egypt. During 2008 and 2009, He was a visiting Professor in Computational Electromagnetic Lab (CEL), in the Electrical and Computer Engineering Department (ECE) in McMaster University, Canada. Then in 2009, he was selected to take part in the first foundation research teams to join King Abdullah University of Science and Technology (KAUST).

Dr. Radwan has 475+ papers, h-index 55, and more than 10,760+ citations based on the Scopus database. He is the Co-inventor of Six US patents, author/Co-author of Seven international books as well as 15-chapter books in the highly ranked publishers such as Elsevier and Springer. He received many research grants as Principle Investigator (PI), CO-PI, or Consultant from different national/international organizations. He was Invited to be Lead/Guest Editors in Journal of Circuits, Systems and Signal Processing, and Journal of Mathematical Problems in Engineering, and Complexity. He organized many special sessions, and participated as Technical Program Committee (TPC) in various international conferences. He was selected as a member of the first scientific council of Egyptian Young Academy of Sciences (EYAS) as well as in the first scientific council of the Egyptian Center for the Advancement of Science, Technology, and Innovation (ECASTI) to empower and encourage Egyptian young scientists in science and technology and build knowledge-based societies.

His research interests include interdisciplinary concepts between mathematics and engineering applications such as fractional-order systems, bifurcation, chaos, memristor, and encryption. Dr. Radwan was awarded various awards as follows: The Cairo University excellence award for research in the engineering sciences in 2016. The best researcher awards Nile University 2015 and 2016. The Abdul Hameed Shoman Award for Arab Researchers in basic sciences in 2015. The state achievements award for research in mathematical sciences in 2012. The Cairo University achievements award for research in the engineering sciences in 2013.

Recent Publications

Control and synchronization of fractional-order chaotic systems

The chaotic dynamics of fractional-order systems and their applications in secure communication have gained the attention of many recent researches. Fractional-order systems provide extra degrees of freedom and control capability with integer-order differential equations as special cases. Synchronization is a necessary function in any communication system and is rather hard to be achieved for

Circuit Theory and Applications

Control and synchronization of fractional-order chaotic systems

The chaotic dynamics of fractional-order systems and their applications in secure communication have gained the attention of many recent researches. Fractional-order systems provide extra degrees of freedom and control capability with integer-order differential equations as special cases. Synchronization is a necessary function in any communication system and is rather hard to be achieved for

Circuit Theory and Applications

Fractional-order DISPR model for the AIDS epidemiological dynamics

Modeling epidemiological dynamics of AIDS infection is an indispensable method to track the spread of such fatal disease. In this paper, the Differential Infectivity and Staged Progression Model, DISP, is modified to include the possibility of recovery, hence the new proposed model is called the DISPR model. The DISPR model is also generalized to the fractional order domain to allow more

Circuit Theory and Applications

Biological inspired optimization algorithms for cole-impedance parameters identification

This paper introduces new meta-heuristic optimization algorithms for extracting the parameters of the Cole-impedance model. It is one of the most important models providing best fitting with the measured data. The proposed algorithms inspired by nature are known as Flower Pollination Algorithm (FPA) and Moth-Flame Optimizer (MFO). The algorithms are tested over sets of both simulated and

Circuit Theory and Applications

Fractional order four-phase oscillator based on double integrator topology

This paper presents a generalization of Soliman's four-phase oscillator into the fractional-order domain. The extra degrees of freedom provided by the fractional-order parameters α and β add more flexibility to the design of the circuit. The design procedure and equations of the proposed oscillator are presented and verified using Matlab and PSPICE. Also, the stability analysis for fractional

Circuit Theory and Applications

FPGA realization of Caputo and Grünwald-Letnikov operators

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

Circuit Theory and Applications

Fractional controllable multi-scroll V-shape attractor with parameters effect

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

Circuit Theory and Applications

FPGA implementation of two fractional order chaotic systems

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

Circuit Theory and Applications

Memristor and inverse memristor: Modeling, implementation and experiments

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

Circuit Theory and Applications
Research Tracks

1) Fractional-Order Systems

2) Memristor

3) Bifurcation

4) Encryption

5) Chaos

Projects
3
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
Chaotic
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
5
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
3
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)
00
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

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
77
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
77
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