Results 61 to 70 of about 1,034,710 (311)

Nanopatterned acellular valve conduits drive the commitment of blood-derived multipotent cells [PDF]

, 2016
Considerable progress has been made in recent years toward elucidating the correlation among nanoscale topography, mechanical properties, and biological behavior of cardiac valve substitutes.
Aguiari, Paola, Barbon, Silvia, Bertalot, Thomas, Conconi, MARIA TERESA, DI LIDDO, Rosa, Gandaglia, Alessandro, Gerosa, Gino, Iop, Laura, Mandoli, Amit, Parnigotto, PIER PAOLO, Schrenk, Sandra, Tasso, Alessia   +11 more
core   +2 more sources

Transseptal Mitral Valve-in-Valve-in-Valve

CASE
[Figure: see text]
Blanaid Canavan, Mark Higgins, Dale J. Murdoch, Christopher Raffel, Katherine Lau, Gregory M. Scalia, Karl Poon   +6 more
openaire   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Large water-hammer pressure for column separation in pipelines [PDF]

, 1991
Water-hammer pressures in a pipeline due to the collapse of a vapor cavity adjacent to a valve are investigated. A water-hammer event is initiated by the closure of a valve in a simple reservoir-pipeline-valve system.
Simpson, A., Wylie, E.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

A piezoelectrically actuated ball valve [PDF]

, 1972
Bimorph strip composed of two layers of poled piezoelectric ceramic material closes and opens valve. Strip performs like capacitator, allowing initial inrush of current when valve is energized and then only small leakage current flows as valve remains ...
Erwin, L. R., Schwartz, H. W., Teitelbaum, B. R.   +2 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Prosthetic urinary sphincter [PDF]

, 1981
A pump/valve unit for controlling the inflation and deflation of a urethral collar in a prosthetic urinary sphincter device is described. A compressible bulb pump defining a reservoir was integrated with a valve unit for implantation.
Helms, C. R., Smyly, H. M.
core   +1 more source

Immersed boundary-finite element model of fluid-structure interaction in the aortic root [PDF]

, 2015
It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in ...
A. Cheng, A. Creane, A. Delfino, A. Wittek, A.N. Azadani, Abe DeAnda, B.E. Griffith, B.E. Griffith, B.E. Griffith, B.E. Griffith, B.E. Griffith, B.E. Griffith, B.J. Bellhouse, Boyce E. Griffith, C.A. Conti, C.S. Peskin, C.S. Peskin, C.S. Peskin, C.S. Peskin, D.M. McQueen, D.M. McQueen, E. Lansac, E.J. Weinberg, F. Sotiropoulos, F. Viscardi, G. Marom, H. Gao, H. Reul, I. Borazjani, I. Borazjani, I.M. Singh, J. De Hart, J. Lu, J. Yao, J.A. Carr, J.D. Humphrey, J.P. Murgo, K. Dumont, K. May-Newman, K.A. Shunk, L. Cardamone, L. Zhu, L.R. Croft, M. Esmaily Moghadam, M. Sellier, M. Thubrikar, M.S. Sacks, M.W. Gee, N. Stergiopulos, N. Westerhof, P. Crosetto, P. Dagum, R. Cheng, R.D. Guy, R.N. Vaishnav, R.O. Bonow, R.V. Freeman, S. de Putter, S. Govindjee, S.J. Kovács, T.C. Gasser, T.E. Driscol, T.G. Fai, V. Alastrué, V. Alastrué, V. Vavourakis, Vittoria Flamini, W.M. Swanson, W.W. Nichols, X.S. Ma, X.Y. Luo, Y. Kim, Y. Mori, Y.C. Fung, Y.C. Fung   +74 more
core   +3 more sources