Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Sang-Youl Lee"'
Autor:
Sung-Jae Chang, Kyu-Jun Cho, Sang-Youl Lee, Hwan-Hee Jeong, Jae-Hoon Lee, Hyun-Wook Jung, Sung-Bum Bae, Il-Gyu Choi, Hae-Cheon Kim, Ho-Kyun Ahn, Jong-Won Lim
Publikováno v:
Crystals, Vol 11, Iss 11, p 1414 (2021)
We report the electrical characteristics of GaN-based high electron mobility transistors (HEMTs) operated on various substrates/films. For the detailed investigation and comparison of the electrical properties of GaN-based HEMTs according to the subs
Externí odkaz:
https://doaj.org/article/499bcfa0b2c14cde967ac96b2b7f0f8e
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
This study deals with drop-impact effects of new hybrid concrete plates strengthened with an ultrahigh molecular weight polyethylene (UHMWPE). The proposed 3D-UHMWPE results in excellent mechanical properties such as high abrasion resistance, impact
Externí odkaz:
https://doaj.org/article/102afee1aa824a718e2335ee4fa0a687
Publikováno v:
Shock and Vibration, Vol 2018 (2018)
Externí odkaz:
https://doaj.org/article/1af6b63e99dc489c99dc5bc3e95ee9b1
Autor:
Sang-Youl Lee
Publikováno v:
Shock and Vibration, Vol 2016 (2016)
This study deals with car crash effects and passenger safety assessment of post structures with breakaway types using high performance steel materials. To disperse the impact force when a car crashes into a post, the post could be designed with a bre
Externí odkaz:
https://doaj.org/article/23bff52ea3274a9088b54e189f2334a7
Publikováno v:
Shock and Vibration, Vol 2016 (2016)
Externí odkaz:
https://doaj.org/article/9a121a19610b4e9a8b5a19cd2f8d6fd0
Publikováno v:
Journal of the Korean Society of Hazard Mitigation. 22:163-169
In this study, the structural performances of membrane structural soundproof tunnels using circular steel tubes are investigated. Full-scale specimens are manufactured for monotonic and cyclic loading tests for snow and wind loads, and their combinat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7e07dc39646e57fe9c91d3f448afb1a
https://doi.org/10.9798/kosham.2022.22.2.163
https://doi.org/10.9798/kosham.2022.22.2.163
Autor:
Hyeong-Bae Choe, Sang-Youl Lee
Publikováno v:
Journal of the Computational Structural Engineering Institute of Korea. 34:363-370
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9718a89940a9802b70ec846e67186811
https://doi.org/10.7734/coseik.2021.34.6.363
https://doi.org/10.7734/coseik.2021.34.6.363
Publikováno v:
KSCE Journal of Civil Engineering. 25:3813-3822
This study investigates a turbulent wind-induced dynamic behavior of a soundproof tunnel structure with un-symmetric shape. The combined computational fluid dynamics (CFD) and fluid-structure interaction (FSI) simulations proposed in this study may a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d40b77ce35589a07d20a28a26ee7f3
https://doi.org/10.1007/s12205-021-1593-5
https://doi.org/10.1007/s12205-021-1593-5
Publikováno v:
Journal of Knot Theory and Its Ramifications. 31
In this paper, we introduce the Goeritz matrix for a pseudo-link whose entries lie in the Laurent polynomial ring [Formula: see text], which generalizes the Goeritz matrix for a classical link. We show that the determinant of a modified Goeritz matri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8f08cb159093adf1210f98c57eda9c
https://doi.org/10.1142/s0218216522500602
https://doi.org/10.1142/s0218216522500602
Autor:
Hiroshi Amano, Eunduk Lee, Jihyung Moon, Byoungjun Choi, Sang-Youl Lee, Tae Yeon Seong, Jeong-Tak Oh, Hwan-Hee Jeong
Publikováno v:
IEEE Photonics Technology Letters. 32:1041-1044
We investigated the effect of plasma-etching on the electrical and optical performance of lateral AlGaInP-based red micro-LEDs as a function of etching time, where plasma-etched Ag particles were used as masks. For the sample etched for 12 s, around
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f61f69903cea655cdcdccbf76efd583
https://doi.org/10.1109/lpt.2020.3010820
https://doi.org/10.1109/lpt.2020.3010820