Title Application of nonlinear systems in nanomechanics and nanofluids : analytical methods and applications / Davood Domairry Ganji, Professor in Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran, Sayyid Habibollah Hashemi Kachapi, PhD in Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.