Many natural compounds that act on the human body provide active ingredients for medicines or clues for developing them, and ...

During chemical reactions, atoms in the reacting substances break their bonds and re-arrange, forming different chemical ...

Abstract: Inspired by natural birds and insects, a flapping wing micro air vehicle with a double fling-clap mechanism is presented to achieve flapping flight. Smoothed particle hydrodynamics model has ...

Abstract: The symmetric problem of harmonic in time elastic wave scattering by a periodic array of pairwise arranged coplanar disk-shaped gaps embedded in an boundless three-dimensional solid is ...