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연료전지 개질기용 증발기의 작동유체 흐름 방향에 따른 열특성에 관한 연구
서호철(Ho-Cheol Suh),노형철(Hyung-Chul Noh),박경석(Kyoung-Suk Park) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Steam reformer was organized with steam reforming process and CO removing process. The steam reforming process needed high temperature, 600~900℃, for catalytic-reaction which was extract of hydrogen from steam and hydrocarbon. In this paper, miniaturization and performance improvement for the operation of the evaporator according to the direction of fluid flow to investigate the thermal characteristic. The thermal characteristic was investigated mass flow rate, specific heat, and temperature difference of working fluid. In addition, the fuel cell reformer was to secure the reliability attached to the actual reformer and operated.
상영호(Young Ho Sang),서호철(Ho Chul Suh),전재복(Jae Bok Jun),김도원(Do Won Kim) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.1
We report a case of neurofibromatosis with unusual clinical manifestations in a 10-year-old girl. The patient showed an adult palm sized, brightly brown macular patch over the left temporal and zygomatic area with underlying tender soft swelling. The entire scalp and the patch were covered with short curling hairs Histopathologic P.XBmination of a biopsy specimen from the lesion of the zygomatic area revealed increased melanin pigments in the basal layer. Thin wavy fibers, intermingled with cells with oval to spindle shaped nuclei were lying in loosely textured strands and numerous mast, cells were noted in the deep dermis, Hypoplastic changes of left. temporal muscle, zygomatic arch and facial bone were found uncler the skin lesion by brain computed tomrgraphy. (Kor J Dermatol 29(1): 95 99, 1991)