Sajad Jafari was born in Kermanshah, Iran, in 1983. He received his BSc., M.S., and Ph.D. degrees in biomedical engineering in 2005, 2008, 2013 from biomedical engineering department, Amirkabir University of technology, Tehran, Iran. He is currently an Assistant Professor in there (since 2013). His research interests include artificial intelligence, optimization, pattern recognition and especially nonlinear and chaotic signals and systems. Dr Sajad Jafari is closely associated with several reputable international journals as a reviewer and he is the author/coauthor of more than 100 peer-reviewed papers.