Zobrazeno 1 - 10 of 17 pro vyhledávání: '"Hyunkook Kim"'
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Akademický článek
Association between De Ritis ratio and intraoperative blood transfusion in patients undergoing surgical clipping of unruptured intracranial aneurysms: a single center, retrospective, propensity score-matched study
Autor: Ji-Hoon Sim, Chan-Sik Kim, Seungil Ha, Hyunkook Kim, Yong-Seok Park, Joung Uk Kim
Publikováno v: Korean Journal of Anesthesiology, Vol 77, Iss 2, Pp 246-254 (2024)
Background Although elective surgery for unruptured intracranial aneurysms (UIA) has increased, few studies have evaluated the risk factors for transfusion during UIA surgery. We evaluated the association between the preoperative De Ritis ratio (aspa
Externí odkaz: https://doaj.org/article/9c1bd7e0247847929ba8926b4827c480
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Illumination normalisation using convolutional neural network with application to face recognition
Autor: Seung Wook Kim, H. J. Kim, Hyunkook Kim, Yunyoung， Kim, S.-J. Ko
Publikováno v: Electronics Letters. 53:399-401
A novel illumination normalisation (IN) method using a convolutional neural network (CNN) is proposed. The proposed network is composed of the local pattern extraction (LPE) and illumination elimination (IE) layers. The LPE layers model the relations
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42d42a2165f0e32f3f48cd603e82d749
https://doi.org/10.1049/el.2017.0023
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5
Effect of Electrochemical Properties and Optical Transmittance of Carbon Nanotubes Counter Electrodes on the Energy Conversion Efficiency of Dye-sensitized Solar Cells
Autor: Minhyon Jeon, Young-Moon Han, Hyonkwang Choi, Hyo-Jun Bae, Young-Joo Kim, Sookhyun Hwang, Sang-Hyo Kim, Hyunkook Kim, Myunghoon Kang
Publikováno v: Journal of the Korean Institute of Electrical and Electronic Material Engineers. 24:333-339
In this work, electrochemical characteristics and optical transmittance of carbon nanotubes (CNTs) counter electrodes which had different amount of CNTs in CNTs slurries were analyzed. Two-step heat treatment processes were applied to achieve well-fa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::164af09b4ee1fa5c685c08ccf45e0454
https://doi.org/10.4313/jkem.2011.24.4.333
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Electrochemical electrodes of graphene-based carbon nanotubes grown by chemical vapor deposition
Autor: Minhyon Jeon, Dae-Won Jung, Sookhyun Hwang, Hyunkook Kim, Myunghoon Kang, Hyonkwang Choi
Publikováno v: Scripta Materialia. 64:601-604
We investigated graphene-based multi-walled carbon nanotube (GMWNT) electrodes grown by chemical vapor deposition. Graphene was grown on a SiO2/Si substrate and then carbon nanotubes were grown on top of the graphene. The electrochemical behavior of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4dbb149fee73375b4d3b04cba8e6c9f8
https://doi.org/10.1016/j.scriptamat.2010.11.029
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9
Dye-sensitized solar cells using graphene-based carbon nano composite as counter electrode
Autor: Wonbong Choi, Minhyon Jeon, Sookhyun Hwang, Hyunkook Kim, Hyonkwang Choi
Publikováno v: Solar Energy Materials and Solar Cells. 95:323-325
We demonstrated a counter electrode in dye-sensitized solar cells (DSSCs) using the graphene-based multi-walled carbon nanotubes (GMWNTs) structure. Graphene layers were prepared by drop casting on a SiO2/Si substrate and multi-walled carbon nanotube
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc344ad3fb3164eea331ba7a750c9f60
https://doi.org/10.1016/j.solmat.2010.04.044
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10
Current-voltage characteristics and Josephson ac effects of granular HTSC Y1Ba2Cu3Oy bridges
Autor: Kiejin Lee, Hyunkook Kim, Sangmin Lee, Jaejun Yu, Doohee Song, Gwangseo Park
Publikováno v: Solid State Communications. 94:45-48
Experimental and theoretical studies are reported of the current-voltage characteristics and Josephson radiations from granular Y 1 Ba 2 Cu 3 O y (YBCO) bridges. We show that the granular structure of bridges can be understood as a series connected i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::400f9ae1e1ef65ce3f6c1d78c6959cf0
https://doi.org/10.1016/0038-1098(95)00015-1
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