Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Hyun-Cheol Choi"'
2
Understanding International Students' Learning Experiences of English as a Medium of Instruction Courses
Autor: Ik-Soon Chung, Hyun-Cheol Choi
Publikováno v: International Journal of Educational Methodology. 8:639-645
This study aims to understand international students' learning experiences in English as a medium of instruction (EMI) courses in a private Korean university. By using mixed-method research, this study collected two data sources, including 1) an onli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1dcf29a9b9630c1881aa9d484500329
https://doi.org/10.12973/ijem.8.4.639
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6
Loss analysis of flyback type snubber with nonlinear magnetic properties for 10kV IGCT applications
Autor: Yongsug Suh, Young-Hoon Jang, Siamak Shirmohammadi, Amreena Lama Lyngdoh, Hyun-Cheol Choi, Gookmin Kwon
Publikováno v: 2017 IEEE Applied Power Electronics Conference and Exposition (APEC).
10kV IGCT has been recently developed and has the potential to push wind turbine systems to higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of current's rising and peak over voltage across IG
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fa37d275ccd96f43100df9ab4b3469a
https://doi.org/10.1109/apec.2017.7930988
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7
Face Tracking and Recognition at a Distance: A Coaxial and Concentric PTZ Camera System
Autor: Anil K. Jain, Unsang Park, Seong-Whan Lee, Hyun-Cheol Choi
Publikováno v: IEEE Transactions on Information Forensics and Security. 8:1665-1677
Face recognition has been regarded as an effective method for subject identification at a distance because of its covert and remote sensing capability. However, face images have a low resolution when they are captured at a distance (say, larger than
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b35ace0a99aaad98912343ca1f023925
https://doi.org/10.1109/tifs.2013.2261061
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8
HFE Gene Mutations, Serum Ferritin Level, Transferrin Saturation, and Their Clinical Correlates in a Korean Population
Autor: Kyoung Un Park, So Hyun Shin, Sang Hyub Lee, Jin Wook Kim, Weechang Kang, Hyun Cheol Choi, Hyun Young Kim, Kyoung Phil Kang, Sook Hyang Jeong, Sung Hee Choi
Publikováno v: Digestive Diseases and Sciences. 54:879-886
The aim of this study was to investigate HFE gene mutations, blood iron indices, and their clinical correlates in a Korean population. In 484 prospectively enrolled health-check examinees, HFE gene mutations and iron indices with clinical and laborat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c5f793c67e58cc5c096a24e0461dfc0
https://doi.org/10.1007/s10620-008-0432-6
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9
X-ray photoelectron spectroscopy studies of double-walled carbon nanotube bundles synthesized using thermal chemical vapor deposition
Autor: Seung Yong Bae, Hyun Cheol Choi, Kwan Kim, Kyung Lock Kim, Woo Sung Jang, Sin Young Kim, Jeunghee Park
Publikováno v: Chemical Physics Letters. 399:255-259
We investigated the electronic structure of double-walled carbon nanotube (DWNT) bundles by variable-energy X-ray photoelectron spectroscopy (XPS). High-purity DWNT bundles were synthesized using MgO-supported Co–Mo catalysts by chemical vapor depo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e314af099de2e134fa489deaa56463f5
https://doi.org/10.1016/j.cplett.2004.10.042
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10
Spectrofluorimeteric Determination of Oxalate Based on Its Ternary Complex Between Eu3+ and Thenoyltrifluoroacetone
Autor: Ki Won Cha, Hua Zi Huang, Hyun Cheol Choi
Publikováno v: Bulletin of the Korean Chemical Society. 23:1456-1458
A simple, sensitive and selective determination method of oxalate has been investigated based on the fluorescence enhancement of Eu 3 + -TTA complex due to the formation of Eu 3 + -TTA-oxalate ternary complex. An emission peak of Eu 3 + -TTA, which i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::053a18fe2731ac295e7169caae3b566e
https://doi.org/10.5012/bkcs.2002.23.10.1456
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