Results 121 to 130 of about 18,576 (289)

Impact of the lesion location on fractional flow reserve

, 2009
Introduction - Fractional flow reserve (FFR) is a method to determine the significance of a lesion. Although an FFR measurement of < 0.75 is accepted to show ischaemia, the effect of the location of the lesion on the coronary artery is not known.
Ozdemir, Murat, Timurkaynak, Timur, Kocaman, Sinan Altan, ŞAHİNARSLAN, ASİFE, Yazici, Erhan, Turfan, Murat   +5 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Fractional Flow Reserve

JACC: Cardiovascular Interventions, 2017
Habib Samady, Arnav Kumar
openaire   +2 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Real‐World Outcomes of FFRangio‐Guided Treatment for Coronary Artery Disease in Acute Versus Chronic Coronary Syndromes

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background The use of angiogram‐based fractional flow reserve technologies in routine clinical practice is increasing steadily. Available data suggest that it is associated with comparable clinical outcomes compared with wire‐based fractional flow ...
Guy Witberg, Yuetsu Kikuta, Kazuhiro Dan, Hiroyoshi Yokoi, Yutaka Hikichi, Mamoru Nanasato, Toru Tanigaki, Yeela Talmor‐Barkan, Amos Levi, Ran Kornowski, Hitoshi Matsuo   +10 more
doaj   +1 more source

Dobutamine-induced wall motion abnormalities: Correlations with myocardial fractional flow reserve and quantitative coronary angiography

, 1996
Objectives. This study evaluated both the relation between dobutamine-induced wall motion abnormalities and the physiologic and morphologic features of epicardial coronary artery stenoses and the impact of the extent of the area at risk on the ...
Marc Vincent, RODRIGUES, ACT, Sys, Stanislas, Stanislas U. Sys, Rodrigues, Ana Clara T., Rodrigues, A.C.T., Thomas H. Marwick, van Schuerbeeck, E., Van Schuerbeeck, Eddy, de Bruyne, Bernard, Bartunek, Jozef, Sys, Stanislas U., Vincent, Marc, VANSCHUERBEECK, E, Jozef Bartunek, Marwick, Thomas H., Vincent, M., VINCENT, M, Bartunek, J., Bernard de Bruyne, DEBRUYNE, B, Ana Clara T. Rodrigues, BARTUNEK, J, MARWICK, TH, de Bruyne, B., Eddy Van Schuerbeeck, Marwick, T.H.   +26 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

Five-Year Outcomes with PCI Guided by Fractional Flow Reserve.2018.pdf

, 2018
Five-Year Outcomes with PCI Guided by Fractional Flow Reserve.2018 https://www.nejm.org/doi/full/10.1056 ...
Jonn Doe (812914)
core   +1 more source