فهرس المقالات Seyyed Ali Eftekhari المقاله 1 - Free Vibration Analysis of Sandwich Micro Beam with Piezoelectric Based on Modified Couple Stress Theory and Surface Effects Mohammad khajekhabaz Ali Eftekhari Mohammad Hashemian Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering , العدد 5 , السنة 10 , پاییز 2017