Doctor of Technical Sciences, Professor Sergey Naida. Sergey Naida is a KPI graduate –in 1992 he graduated electro acoustical Faculty of KPI. After three years he successfully passed postgraduate studies at the Department of Acoustic and Acoustoelectronics. In May 1996 Sergey Naida defended his candidate these, in November 2010 doctor’s dissertation by the specialty “Applied Acoustics and Sound Technics”. During this time he worked his way from the assistant to the associated Professor and then Professor of the Acoustics and Acoustoelectronics Department.