نتایج جستجو برای: magnetic pump

تعداد نتایج: 399907  

2011
Helmut Mad Margit Gfoehler

Effective assistance of the cardiopulmonary system poses a particular technological challenge. In this work we describe an innovative system for temporary heart assistance in critically ill patients, which though minimally invasive – is efficient for recovery of the heart. An Archimedic screw drive that transports the blood out of the left ventricle into the ascending aorta is coupled to a pneu...

2015
Haitian Xu Ghazal Hajisalem Geoffrey M. Steeves Reuven Gordon Byoung C. Choi

Ultrafast laser-induced magnetization dynamics in ferromagnetic thin films were measured using a femtosecond Ti:sapphire laser in a pump-probe magneto-optic Kerr effect setup. The effect of plasmon resonance on the transient magnetization was investigated by drop-coating the ferromagnetic films with dimensionally-tuned gold nanorods supporting longitudinal surface plasmon resonance near the cen...

Journal: :Physical review letters 2016
S Dorfman T A Carter

A shear Alfvén wave parametric instability is observed for the first time in the laboratory. When a single finite ω/Ω_{i} kinetic Alfvén wave (KAW) is launched in the Large Plasma Device above a threshold amplitude, three daughter modes are produced. These daughter modes have frequencies and parallel wave numbers that are consistent with copropagating KAW sidebands and a low frequency nonresona...

Journal: :Annals of cardiothoracic surgery 2014
Vincenzo Tarzia Edward Buratto Michele Gallo Giacomo Bortolussi Jonida Bejko Roberto Bianco Tomaso Bottio Gino Gerosa

Left ventricular assist devices (LVADs) are increasingly used for the treatment of end-stage congestive heart failure, both as a bridge to transplantation and as destination therapy (1). The HeartWare HVAD (HeartWare Inc, Framingham, MA, USA) is a continuous centrifugal-flow left ventricular assist device with a magnetic levitating rotor pump. The pump weighs just 140 g and its small design all...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 2007

Journal: :International Journal of Rotating Machinery 2004

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