Results 181 to 190 of about 2,544,811 (316)

Prosthetic Heart Valves

open access: bronze, 1969
C. Frederick Kittle
openalex   +1 more source

Transcatheter mitral valve-in-ring implantation by the transfemoral approach: First experience in Greece

open access: yesHellenic Journal of Cardiology, 2020
Michael P. Chrissoheris   +7 more
doaj  

Advanced Temperature Design for Dynamic Performance Enhancement of PEMFCs Under High Current Density (HCD)

open access: yesAdvanced Science, EarlyView.
This study presents an innovative temperature difference (TD) design with an in‐plane gradient to optimize cooling channels in proton exchange membrane fuel cells (PEMFCs) under high current density (HCD) loading. The positive temperature difference (PTD) design improves dynamic response by enhancing hydration upstream and mitigating flooding ...
Fengyang Cai   +3 more
wiley   +1 more source

Real‐Time Self‐Optimization of Quantum Dot Laser Emissions During Machine Learning‐Assisted Epitaxy

open access: yesAdvanced Science, EarlyView.
This work presents a machine learning‐driven approach integrated with in situ high‐energy electron diffraction (RHEED) monitoring to automate the optimization of quantum dot (QD) growth for lasers. A 3.2‐fold increase in photoluminescence intensity is achieved alongside a narrow spectral linewidth.
Chao Shen   +13 more
wiley   +1 more source

A Human Engineered Heart Tissue‐Derived Lipotoxic Diabetic Cardiomyopathy Model Revealed Early Benefits of Empagliflozin

open access: yesAdvanced Science, EarlyView.
This study develops a human engineered heart tissue‐derived model of diabetic cardiomyopathy that accurately replicates the dynamic changes in the structural, contractile, and electrophysiological properties of the myocardium. Furthermore, this model is used to confirm the direct protective effects of empagliflozin on the heart through an SGLT2 off ...
Lin Cai   +9 more
wiley   +1 more source

Total heart-valve replacement in the pediatric age group

open access: bronze, 1967
Joseph M. Van De Water   +2 more
openalex   +1 more source

Opening characteristics of three-cusp tissue heart valves [PDF]

open access: bronze, 1973
P. D. Swales   +3 more
openalex   +1 more source

Home - About - Disclaimer - Privacy