Modeling and Simulation of Complex Systems Exhibiting Hysteresis
A.A. Adly (Fellow, IEEE)
Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt
It is well-known that hysteresis is a phenomenon encountered in many fields of specializations. Examples
include magnetic hysteresis in ferromagnetic materials, semiconductor hysteresis in memristors, magnetic
as well as critical temperature in superconductors and gear backlash and actuator backlash mechanicalhysteresis. Obviously, the ability to accurately model this phenomenon is crucial to the successful design
and/or control of any of the aforementioned systems. In general, hysteresis has been best defined as a“multibranch nonlinearity for which branch-to-branch transitions occur after local extrema” where thePreisach model – in its classical and modified forms – have emerged as a mathematically well-definedmodeling and simulation option. An important feature of this model is the possibility to realize it in theform of analog electronics, the fact that makes it physically embeddable in hardware control circuits of suchcomplex systems. In this talk, the realization of the Presiach model software- and hardware-wise will be
discussed. Examples of its utilization to model and simulate systems exhibiting hysteresis will also bepresented.

Biography
Prof. Adly, received the B.Sc. and M.Sc. degrees in Electrical Power Engineering from Cairo
University and the Ph.D. degree in Electrical Engineering from the University of Maryland,College Park, USA. He worked as a Senior Magnetics Scientist at LDJ Electronics, Michigan,USA. He joined Cairo University Faculty of Engineering as an Assistant Professor in 1994 andwas promoted to Full Professor in 2004. During the summers of years 1996-2000, Prof. Adly
worked as a Visiting Research Professor at the University of Maryland, USA. During the period
1996-2006, Prof. Adly worked a team expert and product development consultant to a number ofEgyptian industrial entities. He also worked as a consultant to the UNESCO Cairo office and as
an expert to the EU Commission where he participated in developing the 11.2 M Euro Research,Development, and Innovation (RDI) Program for Egypt. In 2006-2007 he established and directed
the R&D Division of the Egyptian Industrial Modernization Center (IMC) and was responsible formanaging a 100 Million LE Fund to boost the national value-added of Egyptian SMEs. In theperiod 2010-2019 Prof. Adly was appointed as Cairo University Faculty of Engineering Vice Deanfor Education and Students Affairs, Vice Dean for Graduate Studies and Research, the Executive
Director of the Science and Technology Development Fund (STDF), Cairo University Vice
President for Graduate Studies and Research, and the Deputy Minister of Higher Education andScientific Research for Universities Affairs. Adly authored two books, published more than 135
reviewed papers, holds one U.S. patent, chaired many sessions in international conferences, andserved as the Principal Investigator of several joint international research projects. He is currently
the Editor-in-Chief of IEEE Transactions on Magnetics and is an Associate Editor for Elsevier
Journal of Advanced Research and Springer Journal of Engineering and Applied Science. Prof.
Adly has been awarded many prizes including the Presidential Egyptian First Class Medal ofScience and Arts, the University of Maryland ECE Dept. Distinguished Alumni Award, theEgyptian State Appreciation Prize in Engineering Sciences, the Egyptian State Excellence Prize inEngineering Sciences, the Shoman Foundation Arab Scientist Prize and the Egyptian State

Encouragement Prize in Engineering Sciences. He has also been promoted to the prestigious IEEE
Fellow status in 2011. Prof. Adly started his role as E-JUST President in July 1 st, 2022.