Unsteady vortex structure in the wake behind bluff body was experimentally investigated by wind tunnel experiment.A flexible rectangular plate, which was made of a grandpas best soft polyurethane block, shows the sway motion and flow-induced vibration caused by fluid force.Phase-averaged vortex structures behind the flexible plate were educed p1006
We examined nest site selection by Puerto Rican Parrots, a secondary cavity nester, at several spatial scales using the nest entrance as the central focal point relative to 20 habitat and spatial variables.The Puerto Rican Parrot is unique in that, since 2001, all known nesting in the wild brooklyn bridge side view has occurred in artificial caviti
This ultra - let freedom reign paper explores the important question whether trade certifications alleviate the economic and social deprivations of workers in tea plantations in India.Following a critical assessment of the historic deprivations faced by tea plantation workers, the author reviews the potential implications of various certifications