Dr. Ali Koochi is currently an assistant professor of Mechanical Engineering at the University of Torbat Heydarieh, Iran. He obtained his Ph.D. (2016) from Amirkabir University of Technology (AUT), M.S. degree (2009) from Sharif University of Technology (SUT) and his undergraduate B.S. degree (2006) from AUT. His general academic areas of interest include MEMS/NEMS, Dynamic Instability, Piezo/Magneto Materials, and Applied Mathematics.Dr. Mohamadreza Abadyan received the M.Sc. and Ph.D. degrees in aerospace engineering from Sharif University of Technology, Iran, in 2004 and 2010, respectively. His current research interests include the pull-in performance of MEMS/NEMSnd mechanical behavior of polymer/composites.