Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Ung Pak"'
Autor:
Jonghyok Yang, Hyonchol Ku, Ung Pak, Chungil Ri, Myongchol Kim, Cholsu Jong, Hyonuk Pak, Jongnam Kim, Songhyok Ju, Cholhyon Kim, Jusong Yun, Sunghyon Kim
Publikováno v:
Journal of Asian Earth Sciences: X, Vol 8, Iss , Pp 100121- (2022)
In the northwestern Korean Peninsula, Cretaceous volcanic rocks are composed of andesite, andesite-dacite and rhyolite intercalated with terrigenous clastic rocks. Zircon grains selected from these rocks are authigenic zircons with obvious crystal ed
Externí odkaz:
https://doaj.org/article/5e29f403abda404ea99949d38d1658ed
Autor:
Un Song Pak, Chol Ung Pak
Publikováno v:
Journal of the Indian Society of Remote Sensing. 49:2249-2259
This paper focused on the detection of alteration zones associated with the hydrothermal gold deposit using Landsat 8 OLI image data. In this paper, the hydrothermal alteration zones in the study area were detected from visible–near-infrared (VNIR)
Publikováno v:
Tetrahedron. 73:4616-4626
Ethyl 3-alkyl(arylmethyl)amino-2-diazo-3-oxopropanoates (diazo amidoacetates) generate generally both cyclohepta[c]pyrrolones (Buchner products) and β-lactams (1,4-insertion products), and show obvious N-substituent-controlled chemoselectivity betwe
Autor:
Ju-Hyon Yu, Chol-Yi Om, Yong-Ho Kim, Yong-Chol Ri, Jin-Hyok Ri, Song-Hyok Kye, Jun-Myong An, Chol-Ung Pak, In-Ho Pak
Publikováno v:
Journal of Applied Polymer Science. 138:50867
Publikováno v:
Journal of the Korea Institute of Information Security and Cryptology. 25:39-48
Publikováno v:
Journal of Zhejiang University SCIENCE C. 15:861-877
This paper first introduces the concept of a geogram that captures richer features to represent the objects. The spatiogram contains some moments upon the coordinates of the pixels corresponding to each bin, while the geogram contains information abo