In this paper,the two approximate hypotheses in boundary layer theory δp/δy=0,δ^2u/δx^2=0,are reinvestigated and analyzed,while a new approximate hypothesis
To make it possible for the thermal wave theory on temperature oscillation (TO)effects in living tissues to be founded on the substantial experimental basis,a s
In order to estimate the cut-size Xc and the mechanically balanced particles in the axial flow cyclone with the slit-separation method,the tangential velocity d