The mixing of immiscible oil and water by a pitched blade turbine in cylindrical vessel is studied numerically. Three-dimensional simulations combined with hybrid front-tracking/level-set method are employed to capture the complex flow interfacial dynamics. A large eddy simulation approach, Lilly–Smagorinsky model, simulate turbulent two-phase dynamics at Reynolds numbers $Re=1802{-}18\ 026$ . ...

polyarteritis nodosa is a multisystem necrotizing vasculitis of small and medium size muscular arteries in which involvement of the renal and viserat arteries is characteristic. the etiology is unknown but hepatitis b antigenemia is found in 30% of patients. drug exposures and hypersensitivity reactions are other possible causes. excellent therapeutic results have been reported in classic polya...

Subjective estimates of the angiographic severity of coronary artery stenoses show variability and inaccuracy. We therefore tested the accuracy of a newly developed computerized image analysis system for quantitating vessel diameter from cineangiograms. Fourteen cylindrical phantoms of known diameter were filled with contrast medium and filmed over a wide range of clinically relevant radiograph...