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Design and development of a large diameter high pressure fast acting propulsion valve and valve actuator [PDF]

The design and development of a large diameter high pressure quick acting propulsion valve and valve actuator is described. The valve is the heart of a major test facility dedicated to conducting full scale performance tests of aircraft landing systems ...
Srinivasan, K. V.
core +1 more source

Vitrification of Heart Valve Tissues

, 2014
Application of the original vitrification protocol used for pieces of heart valves to intact heart valves has evolved over time. Ice-free cryopreservation by Protocol 1 using VS55 is limited to small samples where relatively rapid cooling and warming rates are possible.
Lia H. Campbell +4 more
openaire +5 more sources

Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets [PDF]

, 2011
Heart valve prostheses are used to replace native heart valves which that are damaged because of congenital diseases or due to ageing. Biological prostheses made of bovine pericardium are similar to native valves and do not require any anticoagulation ...
Alvarez, L. +5 more
core +1 more source

Computation of incompressible viscous flows through artificial heart devices with moving boundaries [PDF]

The extension of computational fluid dynamics techniques to artificial heart flow simulations is illustrated. Unsteady incompressible Navier-Stokes equations written in 3-D generalized curvilinear coordinates are solved iteratively at each physical time ...
Chang, I.-DEE +3 more
core +1 more source

Remarks on the Cause of Closure of the Valves of the Heart [PDF]

W. O. Markham
openalex +1 more source

Pulmonary Ventilation-Perfusion Relations after Heart Valve Replacement or Repair in Man* [PDF]