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고성은 건국대학교 1995 學術誌 Vol.39 No.2
It is proved that minimal graphs in R4 defined over the whole plane have complex structures if their Gauss images are decomposable.
고성은,신영철,Koh, Seong-Eun,Shin, Young-Chul Korean Society of Electron Microscopy 1995 Applied microscopy Vol.25 No.4
Rat liver sinusoids were observed by scanning electron microscopy. The sinusoids were provided with fenestrations which were divided into three types; small, medium-sized and large. The small fenestrations were usually gathered into clusters. The medium-sized fenestrations were either individually organized or in the cluster of small fenestrations. The large fenestrations were usually accompanied by small or medium-sized fenestrations. The lobule was divided into three zones; peripheral, intermediate and central, according to the distribution pattern of the fenestrations. The sinusoid providing with small fenestrations (type I) were predominant in the peripheral zone. The sinusoid showing medium-sized fenestrations (type II) were frequently observed in the central zone. The sinusoid having large fenestrations (type III) were abundant in the intermediate zone. This evidence indicate that the sinusoidal fenestrations become larger toward the intermediate zone from the peripheral zone of the lobule and progressively smaller toward the central zone. However, the fenestrations observed in the central zone seem to be larger than those seen in the peripheral zone of the lobule.