Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jongnam Choi"'
Publikováno v:
The Geography Teacher. 16:150-169
News about North Korea continues to appear on multiple media outlets on a regular basis. We learn of the nuclear weapon capabilities of North Korea and the sanctions that the United States and the ...
Autor:
Chul-sue Hwang, Kelly Swanson, Doug Andersen, Jongnam Choi, Kenneth H. Keller, Gregory H. Chu, Michael Robinson
Publikováno v:
The Geography Teacher. 13:166-178
The second edition of The National Atlas of Korea (Choe 2015), published in December 2014 by the National Geographic Information Institute (NGII) of South Korea (the Republic of Korea) in both Kore...
Publikováno v:
CATENA. 121:307-320
This study aims to partition the grain size of the loess–paleosol sequence on the west coast of South Korea and investigates the limitations and applicability with the partitioning method, through the help of a laser diffraction grain size analyzer
Publikováno v:
Quaternary International. 344:17-31
This study aims to investigate the origin and weathering properties of the loess-paleosol sequence in the Goseong area on the east coast of South Korea, and to discuss the local sediment inputs and their paleoclimatic implications. The geochemical pr
Publikováno v:
Climate of the Past, Vol 9, Iss 1, Pp 261-266 (2013)
We describe a first attempt of wide-area dendroclimatic reconstruction, based upon seven spring temperature-sensitive chronologies from the ring widths of living trees, in Japan and Korea. Mean March–May temperature derived from a gridded land air
Publikováno v:
Quaternary International. 254:58-67
This study reconstructs nine isopollen maps at 1 ka intervals during the Holocene epoch, using pollen records at 28 sites across the Korean Peninsula. The accumulation rates of Alnus , Pinus (Diploxylon), Quercus and NAP/AP (Non-Arboreal Pollen/Arbor
Phytolith analysis and reconstruction of palaeoenvironment at the Nabokri valley plain, Buyeo, Korea
Publikováno v:
Quaternary International. 254:129-137
The soil profile between 12.0 and 14.0 m.a.s.l. was deposited at the Nabokri Valley Plain, Buyeo, Korea from approximately 6000 BP to the present. Through phytolith analysis of 20 samples collected at 10 cm intervals, five Phytolith Assemblage Zones
Publikováno v:
Journal of Nanoscience and Nanotechnology. 13:1980-1982
Strontium-doped samarium cobaltite (Sm0.5Sr0.5CoO3-delta, SSC) fibers were successfully fabricated by electrospinning of a precursor gel derived from polyvinyl alcohol (PVA) and aqueous metal nitrate. After calcination of the as-spun SSC fibers in mi
Autor:
Jongnam Choi, Vernon Meentemeyer
Publikováno v:
Physical Geography. 23:175-195
This study examines spatial patterns in the frequency, duration, intensity, and area of impact of Persistent Positive Temperature Anomalies (PPTAs) across the contiguous United States for the period 1950-1995. These patterns are based on a new defini
Publikováno v:
Journal of nanoscience and nanotechnology. 13(3)
Strontium-doped samarium cobaltite (Sm0.5Sr0.5CoO3-delta, SSC) fibers were successfully fabricated by electrospinning of a precursor gel derived from polyvinyl alcohol (PVA) and aqueous metal nitrate. After calcination of the as-spun SSC fibers in mi