http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Estimating Initial Conditions for Formation of Landslide Slip Surface by Microstructural Analysis
( Hiromi Kaji ),( Toru Takeshita ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2
The purpose of the study is to make clear of initial conditions and formation history of landslide slip surfaces. The sample for this study is from undisturbed drill cores of mudstone from Kushiro area in Hokkaido, Japan. Results of the study so far are: - Three slip surfaces located within 1 m from the landslide slip surface are observed with the naked eyes on a half cut boring core sample. For one of them, structures indicating a reverse fault sense are observed. - Smectite was detected from the current active sliding surface, however a tiny amount of smectite detected from the slip surface considered to have been slipped in the past. - Chlorite was detected by XRD, and also abundant Mg and Fe indicating chlorite were observed by SEM-EDS elemental mapping in the slip surface considered to have been slipped in the past. Those results suggest that one of observed slip surfaces is a fault itself, which was affected by hydrothermal alteration generating chlorite. In fact, since coal layers (Kushiro coal mine) occur in proximity to the research area, there is a possibility that hot water may have migrated and provided these with heat necessary for maturation of coal, and also influenced the formation of slip surface. From now on, we would like to consider the initial conditions under which landslide slip surface was formed by clarifying the formation history of the target area.
Ta-Wei Liu,Hiroyuki Kaji,Akira Togayachi,Hiromi Ito,Kiyohiko Angata,Takashi Sato,Hisashi Narimatsu 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1
Fucose-containing glycoconjugates play important roles in numerous physiological and pathological processes. Given the biological importance of posttranslational glycosylation, a specific and robust strategy for the identification of fucosylated glycoproteins is highly desirable. In this study, we demonstrate an alternative way of labeling of fucosylated structures by metabolic engineering, using a chemoenzymatic approach. In this approach, the activities of Bacteroides fragilis 9343 L-fucokinase/GDP-fucose pyrophosphorylase and human α1,3-fucosyltransferase 9 are combined in a Namalwa cellular model. Interestingly, this system could be applied to labeling of alkyne-modified fucosylated glycoproteins. N-glycan site mapping and identification was done using an in vitro selective chemical ligation reaction and isotope-coded glycosylation site-specific tagging, subsequent to liquid chromatography-tandem mass spectrometry analysis. This work illustrates the use of a click chemistry-based strategy combined with a glycoproteomic technique to get further insight into the pattern of fucose-mediated biological processes and functions.