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Prof. Ahmed Radwan

Vice President for Research

Faculty Office Ext.

1758

Faculty Building

UB2

Office Number

S21

Biography

Prof. Ahmed G. Radwan (SMIEEE, Fellow-AAS) is the Vice-President for Research, and Dean of Graduate Studies at Nile University, Egypt. He is the Founder and general co-Chair of NILES International Conference, and also the Founder and Chair of the Undergraduate Research Forum (UGRF) at Nile University. He has a total number of indexed publications of 475+, more than 11,000 citations and h-index: 55 according to Scopus.

He is a Co-inventor of 6 US patents, author/co-author of 12 international books as well as 18 book chapters in the highly ranked publishers. Prof. Radwan is leading the fractional-order circuits track worldwide. He is an associate editor in 4 prestigious Scopus-indexed journals and TC member in IEEE CASS. Some of his prestigious Awards: The State Encouragement Award, The State Excellence Award, Abdul Hameed Shoman Award, Scopus Award in Engineering and Technology, Prof. Tarek Khalil Award 2022 for Distinguished Leadership from Nile university and many more. He managed funded projects with budgets over 10M EGP and supervised more than 50 (Master's & Ph.Ds.).

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
3
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
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)
1
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
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
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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
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