Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Young-Seon Lee"'
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2193-2201 (2024)
Although the understanding of microstructure and mechanical property changes in re-heat-treated Inconel alloys is important to evaluate the performance of repaired components, recent research has mainly focused on the heat treatment effect of as-fabr
Externí odkaz:
https://doaj.org/article/b69f429e36644488b5b2ba9228a34be0
Autor:
Yoon-Uk Heo, Chang-Gon Jeong, Soo-Hyun Kim, Gun-Young Yoon, T. T. T. Trang, Youngyun Woo, Eun Yoo Yoon, Young-Seon Lee
Publikováno v:
Applied Microscopy, Vol 52, Iss 1, Pp 1-10 (2022)
Abstract An electron probe X-ray microanalyzer (EPMA) is an essential tool for studying chemical composition distribution in the microstructure. Quantifying chemical composition using standard specimens is commonly used to determine the composition o
Externí odkaz:
https://doaj.org/article/748e914b94e74bf3929177022a4a3d6d
Autor:
Minki Hwang, Byounghyun Lim, Jun-Seop Song, Hee Tae Yu, Ah-Jin Ryu, Young-Seon Lee, Boyoung Joung, Eun Bo Shim, Hui-Nam Pak
Publikováno v:
PLoS ONE, Vol 12, Iss 2, p e0172931 (2017)
BACKGROUND:The role of the autonomic nervous system (ANS) on atrial fibrillation (AF) is difficult to demonstrate in the intact human left atrium (LA) due to technical limitations of the current electrophysiological mapping technique. We examined the
Externí odkaz:
https://doaj.org/article/0a38c9e04d49461895e68a6aeafb66b7
Autor:
Changyong Li, Byounghyun Lim, Minki Hwang, Jun-Seop Song, Young-Seon Lee, Boyoung Joung, Hui-Nam Pak
Publikováno v:
PLoS ONE, Vol 11, Iss 7, p e0160017 (2016)
We previously reported that stable rotors were observed in in-silico human atrial fibrillation (AF) models, and were well represented by dominant frequency (DF). We explored the spatiotemporal stability of DF sites in 3D-AF models imported from patie
Externí odkaz:
https://doaj.org/article/2f876a7463d84c71b563836d51429b99
Publikováno v:
PLoS ONE, Vol 11, Iss 2, p e0149695 (2016)
Although rotors have been considered among the drivers of atrial fibrillation (AF), the rotor definition is inconsistent. We evaluated the nature of rotors in 2D and 3D in- silico models of persistent AF (PeAF) by analyzing phase singularity (PS), do
Externí odkaz:
https://doaj.org/article/5e828476b3164cc480f1fa6ad2d94af4
Autor:
Young-Seon Lee, Minki Hwang, Jun-Seop Song, Changyong Li, Boyoung Joung, Eric A Sobie, Hui-Nam Pak
Publikováno v:
PLoS ONE, Vol 11, Iss 3, p e0150779 (2016)
Persistent atrial fibrillation (PeAF) in humans is characterized by shortening of action potential duration (APD) and attenuation of APD rate-adaptation. However, the quantitative influences of particular ionic current alterations on rate-dependent A
Externí odkaz:
https://doaj.org/article/a7df7a591f46465392f7b8c3d8bf51e9
Publikováno v:
PLoS ONE, Vol 11, Iss 12, p e0167567 (2016)
The point of phase singularity (PS) is considered to represent a spiral wave core or a rotor in cardiac fibrillation. Computational efficiency is important for detection of PS in clinical electrophysiology. We developed a novel algorithm for highly e
Externí odkaz:
https://doaj.org/article/a3d84abb6edc47069609ad0ec6b79123
Autor:
Jutta Schröder-Braunstein, Judith Gras, Benedikt Brors, Sonja Schwarz, Timea Szikszai, Felix Lasitschka, Guido Wabnitz, Antje Heidtmann, Young-Seon Lee, Serin Schiessling, Christine Leowardi, Mohammed Al-Saeedi, Alexis Ulrich, Antonia Engelke, Johannes Winter, Yvonne Samstag, Thomas Giese, Stefan Meuer
Publikováno v:
PLoS ONE, Vol 9, Iss 5, p e97780 (2014)
Resident human lamina propria immune cells serve as powerful effectors in host defense. Molecular events associated with the initiation of an intestinal inflammatory response in these cells are largely unknown. Here, we aimed to characterize phenotyp
Externí odkaz:
https://doaj.org/article/1af6529ca9d543b5a3f93aa953e9a856
Autor:
Sang Soo Lee, Seon Du Choi, Ho Geun Shin, Suman Timilsina, Seong Min Jang, Young Seon Lee, YongNam Kwon, Ji Sik Kim
Publikováno v:
Korean Journal of Metals and Materials. 60:391-399
Superplastic forming (SPF) is a promising approach used for manufacturing parts with complex geometries, especially in the automotive, aerospace, and marine industries. However, the wider use of this method is limited by issues of low forming rate, h
Autor:
Euijun Song, Young-Seon Lee
Publikováno v:
Journal of electrocardiology. 74
Action potential duration (APD) restitution curve and its maximal slope (Smax) reflect single cell-level dynamic instability for inducing chaotic heart rhythms. However, conventional parameter sensitivity analysis often fails to describe nonlinear re