Multiscan Echocardiography

Microstructure Integrated Modeling of Multiscan Laser Forming

Laser forming of steel is a hot forming process with high heating and cooling rate, during which strain hardening, dynamic recrystallization, and phase transformation take place. Numerical models considering strain rate and temperature effects only usually give unsatisfactory results when applied to multiscan laser forming operations. This is mainly due to the inadequate constitutive models emp...

multiscan: Combining multiple laser scans of microarrays

Cooling Effects in Multiscan Laser Forming

For laser forming of sheet metal to become a practical production or rapid prototyping tool, multiscan, that is, to use a laser to scan the workpiece repeatedly is necessary in order to achieve the required magnitude of deformation. Between consecutive scans, substantial waiting time is normally necessary for the workpiece to cool down in order for a steep temperature gradient to be reestablish...

Echocardiography

L'echocardiographie trouve de plus en plus une place importante dans L'evaluation des di­verses cardiopathies tant acquises que Congeni­tales. Cette technique, non sanglante et atrau­matique a surtout l'intcrrct de Pouvoir etre re­pete a volonte.  Ainsi l'echoc'.lrdiographie rend de servic-:: certains dans L'etablissement du bilan preopera­toin: des cctrdiooathies valvulaires sifrequente en Ir...

The Evolutionary Development of Echocardiography

Echocardiography is a non-invasive diagnostic technique which provides information on cardiac morphology, function, and hemodynamics. It is the most frequently used cardiovascular diagnostic test only after electrocardiography. In less than five decades, the evolution in this technique has made it the basic part of cardiovascular medicine. Herein, the evolution of various forms of echocardiogra...