Dr. Mohamed El Malki has a Doctoral Degree in Acoustics and Physical Sciences from Mohammed First University, Faculty of Sciences Oujda, Morocco. He was part of a research project funded by the Erasmus Plus mobility program (JAMIES2020) at Minho University – Portugal. Currently, he continues his research at the laboratory of Materials, Waves, Energy, and Environment at Faculty of Sciences Oujda. His main research interest focused on acoustics, noise reduction, periodic structures and materials sciences.