Abstract We present a penalization parameter method for obstacle identification in an incompressible fluid flow modified version of the Oseen equations. The proposed consists adding high resistance potential to system such that some subset its boundary support represents obstacle. This allows work fixed domain and highly simplify solution inverse problem via suitable cost functional. Existence ...

background and aims. one of the major problems of all-ceramic restorations is their probable fracture under occlusal force. the aim of the present in vitro study was to compare the effect of two marginal designs (chamfer and deep chamfer) on the fracture resistance of all-ceramic restorations, cercon. materials and methods. this in vitro study was carried out with single-blind experimental tech...