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Dee Chan Chwae(崔煒讚),Uk Yun(尹旭) 대한자원환경지질학회 1991 자원환경지질 Vol.24 No.3
Since “Gyeonsang Formation” has been introduced 90 years ago by B.Koto(1903), it was newly found within the lower Chomgog Formation ore mineralized zone. The mineralized zone occurs along the stratigraphic unit there. The ore minerals are mainly composed of hematite, ilmenite and magnetite. The molybdenum (2.100-3.100ppm?), copper and zinc are the accessories. There are also traces of cadmium, gadolinium, neptunium, ruthenium and tin. The ore mineralized zone shows about 1 km of apparent thickness with 10 to 12 degrees of plunging on the surface and extends 12 km along its strike in the U-Bo sheet(Chwae et al., 1990). The mineralized zone could be valuable to correlate the stratigraphic sequence between the Uisong and Mirryang subbasins,if giving consideration of the Palgongsan lineament (Chang, 1975).
Chwae, Yong‐,Joon,Lee, Jae Myun,Kim, Eun Joon,Lee, Seung Tae,Soh, Jae‐,Won,Kim, Jongsun Nature Publishing Group 2007 Immunology and Cell Biology Vol.85 No.3
<P>Inhibitory killer Ig‐like receptor (KIR) expression was upregulated by protein kinase C (PKC) activation in stable Jurkat clones that express KIR or CD8KIR fusion proteins. PKC‐induced KIR upregulation was mediated by the cytoplasmic tail of KIR and regulated at the post‐transcriptional level. PKC inhibition, metabolic labeling and colocalization studies demonstrated that the activation of the conventional PKCs upregulated surface and cellular KIR levels by stimulating the maturation processes in endoplasmic reticulum–Golgi and by promoting the recycling of surface KIR through sorting endosomes. Similar studies also revealed that KIR was secreted to plasma membrane through lytic granules in a PKC<I>δ</I>‐dependent manner. Consequently, PKC<I>δ</I> inhibition caused the formation of giant perinuclear granules, which trapped KIR and FasL as well as CPE and Lamp1.</P>
경상분지(慶尙盆地)에서 발견(發見)되는 함광퇴적암층(含鑛堆積巖層)
최위찬,윤욱,Chwae, Uee Chan,Yun, Uk 대한자원환경지질학회 1991 자원환경지질 Vol.24 No.3
Since "Gyeonsang Formation" has been introduced 90 years ago by B.Koto(1903), it was newly found within the lower Chomgog Formation ore mineralized zone. The mineralized zone occurs along the stratigraphic unit there. The ore minerals are mainly composed of hematite, ilmenite and magnetite. The molybdenum (2.100-3.100ppm?), copper and zinc are the accessories. There are also traces of cadmium, gadolinium, neptunium, ruthenium and tin. The ore mineralized zone shows about 1 km of apparent thickness with 10 to 12 degrees of plunging on the surface and extends 12 km along its strike in the U-Bo sheet(Chwae et al., 1990). The mineralized zone could be valuable to correlate the stratigraphic sequence between the Uisong and Mirryang subbasins, if giving consideration of the Palgongsan lineament (Chang, 1975).
연천층군과 임진강습곡대의 층서.구조적 재고 및 분포 경계
최위찬,최성자,Chwae, Uee-Chan,Choi, Sung-Ja 대한자원환경지질학회 2009 자원환경지질 Vol.42 No.6
야마구찌의 '소위 연천계,' 북한의 '림진계,' 국토기본지질도상의 연천층군 간의 차이점에 대한 재정의를 통하여 연천층군과 임진강습곡대의 의미를 올바르게 인식하고자 한다. 연천층군의 남-북간 전체지역에 대한 개략조사 단계로 (북한에 속해있는) 임의의 지역에 대한 지층의 지질구조 인자를 이해하기 위해 여러 각도에서 관찰하여 단면도를 인지하는 위성영상 판독방법이 활용되었다. Redefining the difference among the Yamaguchi's 'so-called Yeoncheon system,' north Korean's 'Rimjin System' and Yeoncheon Group of national geological map, authors tried to avoid a possible misunderstanding of concept between Yeoncheon Group and Imjingang fold Belt. As a tool of preliminary geological mapping and or N-S reconnaissance of the whole Yeoncheon Group, an interpretation technique of satellite image from various angles has been applied to understand the geometrical attitude of strike and dip of random spot, and a further concept like as cross section.
백악기 후기 미시령 병반의 기하학적 복원과 백담분지의 규모에 관한 소고
최위찬,김유봉,최성자,Chwae, Uee-Chan,Kim, You-Bong,Suzuki, Kazuhiro,Choi, Sung-Ja 대한자원환경지질학회 2011 자원환경지질 Vol.44 No.4
창암점 도폭 (1:5만)을 조사하는 과정에서 속초시 서쪽의 미시령 인근에서 반심성암으로 구성된 미시령 병반의 존재를 알게 되었으며, 원래의 병반 모양을 알기 위해 석영장석반암 직 상위에 산점상으로 분포하는 퇴적층에 대한 구조등고선과 단면도를 통한 기하학적 복원을 하였다. 병반의 형성시기는 상기 반암의 관입시기인 $84.4{\pm}1.8$ Ma (SHRIMP)로 고려된다. 삭박되어 잃어버린 백담퇴적분지의 원래 크기는 동-서 폭이 6 km, 남-북 길이가 16 km에 달하는 것으로 산출되었다. As a product of geological mapping of the Changamjeom Sheet (1:50,000) located around Misiryeong at a distance towards the west from Sokcho city, a small laccolith of hypabyssal rocks has been geometrically reconstructed to understand the original laccolith shape using structural contour lines of random spot sediments laid on the quartz feldspar porphyry and a schematic cross section. The laccolith age is constrained to ca. $84.4{\pm}1.8$ Ma (SHRIMP). The originated Baekdam sedimentary basin with the lost size has been yielded to 6 km wide and 16 km long.
Kim, H.-R.,Chwae, Y.-J.,Kim, J. Blackwell Publishing Ltd 2010 Scandinavian journal of immunology Vol.71 No.6
<P>Abstract</P><P>A number of surface receptors expressed on NK cells are related to the regulation of NK cell activity and characterized by either inhibitory or activating properties. Natural cytotoxicity receptors (NCR) are one major family of activating receptors involved in NK cytotoxicity. The three family members of NCR are NKp46, NKp44, and NKp30. The surface density of these receptors might vary with the activation state of NK cells, and their density may directly correlate with their natural cytotoxicity. In this study, we investigated the regulation of NKp46 expression and determined the amino acid sequence motif for protein kinase C (PKC)-mediated regulation of its surface expression. We produced stable cell lines expressing full-length NKp46 and investigated the change in expression after PMA or IL-2 treatment using flow cytometry, RT-PCR, and immunoblotting methods. Expression of NKp46 on Jurkat T-cell transfectants appeared to be induced by PMA treatment until 8-h post-treatment and then gradually decreased afterwards to levels that were less than those measured at pretreatment. Parallel to surface expression of NKp46, total NKp46 protein expression also appeared to fluctuate after PMA treatment, but the expression of mRNA transcripts was not significantly affected. Experiments with mutant NKp46-expressing stable cell lines demonstrated that Ser288 might be critical for the surface expression of NKp46 and the PKC-mediated regulation of NKp46 expression. However, NKp46 surface expression was not influenced by IL-2 in stable cell lines expressing wild-type and mutant NKp46.</P>