Results 281 to 290 of about 2,712,102 (401)

Reprogrammable Phase‐Transition Composites for Adaptive Dynamic Shape Morphing

open access: yesAdvanced Science, EarlyView.
This paper reports a bio‐inspired reprogrammable phase‐transition composites that uses the stiffness change induced by reversible solid‐liquid phase transition to program and regulate the material deformation actuated by reversible liquid‐vapor phase transition, thereby achieving adaptive dynamic deformation in a controllable manner, and enabling ...
Yiding Zhong   +8 more
wiley   +1 more source

Comparison of Latest Generation Intra- and Supra-Annular Self-Expanding Transcatheter Heart Valves for Aortic Valve-in-Valve Procedures. [PDF]

open access: yesCatheter Cardiovasc Interv
Stötzel AK   +9 more
europepmc   +1 more source

Impact of Echocardiographic Cardiac Damage Staging on Mortality and Heart Failure Hospitalizations in Aortic Stenosis Patients Undergoing Transcatheter Aortic Valve Replacement [PDF]

open access: gold
José Antonio Parada Barcía   +6 more
openalex   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Pregnant Woman in Outcomes with Prosthetic Heart Valves. [PDF]

open access: yesJ Cardiovasc Dev Dis
Sefiyeva G   +10 more
europepmc   +1 more source

Quantification of Gaseous Products Evolved at Industrially Relevant Current Densities During CO2 Electroreduction and Water Electrolysis Using Online Gas Chromatography

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The dilution of gaseous products obtained at high‐current densities during CO2 electroreduction or water electrolysis enables their accurate quantification via online gas chromatography, which is crucial for reliable catalyst benchmarking. The corresponding Faradaic efficiencies can then be calculated with low deviations using two different instruments,
Raíssa Ribeiro Lima Machado   +4 more
wiley   +1 more source

A Thin Film Nitinol Heart Valve

open access: gold, 2004
Lenka Stepan   +2 more
openalex   +1 more source

Bioprosthetic heart valves of the future

open access: yesXenotransplantation, 2014
R. Manji, B. Ekser, A. Menkis, D. Cooper
semanticscholar   +1 more source

Scalable Liquid‐Phase Exfoliation of h‐BN for Solar‐Reflective and Thermally Stable Polymer Aerogels

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
High‐pressure homogenization exfoliates hexagonal boron nitride (h‐BN) into stable nanosheets, which are incorporated into PVA, CMC, and HEC matrices to form lightweight composite aerogels. Tuning h‐BN loading (0–50 wt%) transforms the structure from porous to densely packed, tailoring optical, thermal, and mechanical properties. An optimized PVA/20 wt%
Mouza Alaryani   +6 more
wiley   +1 more source

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