%0 Journal Article %T Lateral vibrations of embedded hetero-junction carbon nanotubes based on the nonlocal strain gradient theory: Analytical and differential quadrature element (DQE) methods %A Mohammadian, Mostafa %A Hosseini, Seyed Mahmoud %A Abolbashari, Mohammad Hossein %J Physica E %@ 1386-9477 %D 2019