introduction: timeliness has been considered as a key domain in quality of emergency department (ed) care and delay in care providing is influential determinants of patient’s outcomes. the present study, aimed to evaluate the determinants of prolonged ed length of stay (los). methods: in this cross-sectional study, using adopted version of the latest form for external evaluation and accreditati...

in this work, the steady and laminar mixed convection of nanofluid in horizontal concentric annulus withrotating inner cylinder is investigated numerically. the inner and outer cylinders are kept at constanttemperature ti and to respectively, where ti>to. the annular space is filled with alumina-water nanofluid.the governing equations with the corresponded boundary conditions in the polar coord...