Abstract: This work investigates the phonon properties such as phonon dispersion relation, average group velocity, and phonon density of state (DOS) theoretically in GaN nanofilm under various surface stress fields. By taking into ...

Abstract: The phonon thermal conductivity of Gallium nitride (GaN) nanofilms and nanowires under prestress fields are investigated theoretically. In the framework of elasticity theory, the phonon dispersion relations of spatially ...

Abstract: The influence of surface stress on the yield strength of nanotwinned polycrystal facecenteredcubic (FCC) metallic nanowire is theoretically investigated. The contribution of surface boundaries on the strengthening/softening ...

Abstract: This work presents a micromechanical model to investigate mechanical properties of nanotwinned dualphase copper, consisting of the coarse grained phase and the nanotwinned phase. Both strengthening mechanisms of nanotwinning ...

Abstract: To investigate the lubrication mechanism of carbon nanospheres and compare their tribological performance with carbon powder, this study presented a comprehensive analysis of their potential as lubricant additives through ...

Abstract: he ?bottom up? generation of low-level vortices (LVs) and midlevel vortices (MVs) during the genesis of Tropical Storm Debby (2006) and the roles of a midlevel ?marsupial pouch? associated with an African easterly wave ...

Abstract: series of 5-day numerical simulations of idealized hurricane vortices under the influence of different background flows is performed by varying vertical grid resolution (VGR) in different portions of the atmosphere with ...

Abstract: Reducing the volume of support structures is a critical means for saving materials and budgets of additive manufacturing, and tree structure is an effective topology for this purpose. Although a few articles in literature ...