this paper investigates the lateral vibration of single-layered graphene sheets based on a new theory called doublet mechanics with a length scale parameter. after a brief reviewing of doublet mechanics fundamentals, a sixth order partial differential equation that governs the lateral vibration of single-layered graphene sheets is derived. using doublet mechanics, the relation between natural f...

This study focuses on the creep response of meso-length scale systems, whose smallest dimensions lie in range a few hundred micrometers to millimeters. Here, uniaxial experiments were performed commercially pure Al polycrystals using samples having (or, characteristic sample) dimension 500 μm 7 mm “five”-power law regime. Compared interior, near-surface region developed compliant dislocation su...

Looping patterns, where channels divide and reconnect further downstream, are widespread in natural rivers. Here, we build an extensive dataset of different gravel-bed sand-bed rivers around the world encompassing a wide range physiographic sedimentological conditions. Field data show existence quasi-universal relations for anabranches length when scaled with bankfull hydraulic geometry variabl...