Zobrazeno 1 - 10 of 61 pro vyhledávání: '"Kye-Hun Park"'
1
Carbon Isotopic Composition of Carbonates of the Okcheon Metamorphic Belt in South Korea from Neoproterozoic to Early Cambrian Potential: Geological and Tectonic Significance
Autor: Kye-Hun Park, Youngji Ha
There has been considerable debate as to whether the Korean peninsula has evolved as part of the Sino-Korean Craton since Neoarchean or whether it is a product of the amalgamation of several continental fragments in the early Mesozoic Era. The relati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ca7949778b17a06da3bd96441a0b674
https://doi.org/10.5194/egusphere-egu23-5196
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3
Detrital Zircon U-Pb Geochronology and Hf Isotope Geochemistry of the Hayang Group, SE Korea and the Himenoura and Goshoura Groups, SW Japan: Signs of Subduction-Related Magmatism after a Long Resting Period
Autor: Tae-Ho Lee, Kye-Hun Park
Publikováno v: Minerals
Volume 10
Issue 11
Minerals, Vol 10, Iss 936, p 936 (2020)
There was a hiatus in magmatism in Korea and Japan, located on the eastern continental margin of Asia, during a period of about 40 Ma from 160 Ma to 120 Ma. The cause of the resumption of magmatism since then is not yet well understood. In this study
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04d2a5b72d976aa7e65db31e66d45b9c
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4
ANFIS-MOA models for the assessment of groundwater contamination vulnerability in a nitrate contaminated area
Autor: Chidambaram Sabarathinam, Mohamed Hassan, Venkatramanan Senapathi, Sang Yong Chung, Kye-Hun Park, Hussam Eldin Elzain, Selvam Sekar
Publikováno v: Journal of environmental management. 286
The enhanced assessment of groundwater contamination vulnerability is necessary for the management and conservation of groundwater resources because groundwater contamination has been much increased continuously in the world by anthropogenic origin.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58713e5411dd5813b13ac9e4debdabe4
https://pubmed.ncbi.nlm.nih.gov/33636625
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5
Deep Learning Neural Networks with Metaheuristic Optimization Algorithms for Groundwater Contamination Vulnerability Mapping in Miryang Aquifer, South Korea
Autor: Venkatramanan Senapathi, Sang Yong Chung, Kye-Hun Park, Hussam Eldin Elzain
This study aims to use an integration of genetic algorithm (GA) model and particle swarm optimization (PSO) with the Deep Learning Neural Networks (DLNN) for groundwater contamination vulnerability. Miryang, a city in the northeastern portion of Gyeo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58af59a3194881602053ef4bf933cd40
https://doi.org/10.5194/egusphere-egu2020-7377
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7
Drastic enhancement of blue-to-orange color conversion efficiency in heavily-doped ZnS:Mn2+ phosphor and its application in white LEDs
Autor: J.S. Kim, G. Deressa, Taewook Kang, Kye-Hun Park
Publikováno v: Journal of Luminescence. 194:551-556
Heavily-doped ZnS:Mn 2+ phosphors showed an extremely enhanced photoluminescence excitation intensity at 464 nm peak wavelength originated from 6 A 1 ( 6 S)→ 4 A 1 ( 4 G) forbidden transition of Mn 2+ ions. The best ZnS: Mn 2+ phosphors showed the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db7c67fd160db5b48488c858f41c9eb4
https://doi.org/10.1016/j.jlumin.2017.07.036
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8
U-Pb ages and Hf isotopic compositions of detrital zircons from the Seochangni Formation of the northeastern Okcheon Metamorphic Belt: Implications to the crustal evolution of the Sino-Korean craton since Paleoproterozoic
Autor: Ji Eun Choi, Youngji Ha, Yong-Sun Song, Myoung Jung Kim, Shuwen Liu, Kye-Hun Park
Publikováno v: Lithos. :106340
The age-unknown Seochangni Formation is distributed in the northeastern part of the Okcheon Metamorphic Belt in central South Korea. It unconformably overlies the Paleoproterozoic Busan gneiss complex exposed as a small dome and is in contact with th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8d4347defb5a8ad46f03b3d0474f847
https://doi.org/10.1016/j.lithos.2021.106340
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9
Strong thermal stability of Lu3Al5O12:Ce3+ single crystal phosphor for laser lighting
Autor: J.H. Ryu, Taewook Kang, J.S. Kim, Kye-Hun Park, Young-Moon Yu, S.G. Lim
Publikováno v: Journal of Luminescence. 191:35-39
Green-yellow single crystal Lu 3 Al 5 O 12 :Ce 3+ (LuAG:Ce) as a color conversion phosphor for high-power laser lighting was grown through a floating zone method by an image furnace. It showed an excellent thermal stability, a lower quantum efficienc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8674103befb7939594a37fe55fcbea1f
https://doi.org/10.1016/j.jlumin.2017.01.032
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10
Spectral variation of Y3Al5O12:Ce3+ nanophosphors and their optical simulation
Autor: J.S. Kim, Hee-Lack Choi, Juyun Park, Kye-Hun Park, Taewook Kang, Do-Hoon Kim
Publikováno v: Journal of Luminescence. 191:40-45
Yellow Y 3 Al 5 O 12 :Ce 3+ (YAG:Ce) nanophosphors were prepared through a high-energy planetary milling of the bulk phosphor: two groups of D50 = 200 nm and 500 nm. They showed the drastic narrowing of excitation peaks with blue-shifting of emission
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::185a7ee03416ee791347f2ee51f7ffdb
https://doi.org/10.1016/j.jlumin.2017.01.031
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