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Sang Seop Kum,문상흡,Yoon Sik Park 한국화학공학회 2011 Korean Journal of Chemical Engineering Vol.28 No.6
Mo_(1.0)V_(0.4)Te_(0.25)Nb_(0.24)O_x catalyst was prepared by hydrothermal synthesis in a solution containing a drying control chemical additive (DCCA) such as propionic acid (PA) or formamide (FA). The performance of the prepared catalysts in propane oxidation for producing acrylic acid (AA) was improved because the catalyst showed an increase in both the activity and AA selectivity. The activity was increased due to an increase in the surface area and in the oxygen mobility. The AA selectivity was increased due to a decrease in the number of acidic sites, which were responsible for the unselective and deep oxidation of intermediates. The catalyst performance was degraded when excess amounts of DCCA were used in the preparation step because the surface area decreased, due to the residues of DCCA, and the surface density of acidic sites increased.
금종수(Jong-Soo Kum),김동규(Dong-Gyu Kim),서정섭(Jeong-Seop Seo),장은영(Eun-Young Jang),이상호(Sang-Ho Lee) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Photo-catalyst technology to the decomposition of formaldehyde, and many are capable of VOC. In this research, effects of screw type photo-catalyst device will announce the experimental results.
[동력전달계부문] 연료전지 하이브리드 추진차량 설계 기술
하종배(Jong-Bae Ha),이각섭(Kak-Seop Lee),박성용(Seong-Yong Park),박상근(Sang-Keun Park),금영범(Young-Bum Kum) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Due to the environmental problems, automobile manufacturers are endeavoring to develop the hybrid fuel cell vehicle with superior characteristics in vehicle emission and fuel consumption. DAEWOO motor company has been developing fuel cell hybrid vehicle called DFCV -1. This paper is focussed on package, body and chassis systems for the pre-proto fuel cell hybrid vehicle with 10kw fuel cell stack and 50kw battery pack.
소아의 흉벽에 발생한 Langerhans 세포 조직구증의 치료 - 1례 보고 -
송동섭,지행옥,정원상,강정호,김영학,김혁,이철범,함시영,전석철,이원미,박찬금,Song, Dong-Seop,Lee, Heng-Ok,Chung, Won-Sang,Kang, Jung-Ho,Kim, Young-Hak,Kim, Hyuck,Lee, Chul-Bum,Ham, Shi-Young,Jeon, Seok-Chol,Lee, Won-Mi,Park, Chan-Kum 대한흉부심장혈관외과학회 2001 Journal of Chest Surgery (J Chest Surg) Vol.34 No.6
Langerhans 세포 조직구증(LCH, Langerhans\` Cell Histiocytosis)은 Langerhans\` cell histiocyte의 이상 증식을 특징으로 하는 원인 불명의 질환이다. 이 질환은 eosinophilic granuloma, Hand-Sch ller-Christian씨 병, Letterer-Siwe병을 포함하는 것으로 과거에는 histiocytosis X로 불리던 질환이다. 피부, 림프절, 골, 골수 및 체내 모든 조직과 기관을 침범할 수 있으나 국내에서 흉벽에서 발생된 예는 보고된 증례가 많지않다. 18개월 된 남자 환아에서 흉벽의 늑골에서 기원하여 골용해 소견을 동반한 종괴가 있어 수술적 절제한 후 LCH로 확진된 증례가 있어 문헌고찰과 함께 보고하는 바이다 Langerhans\` Cell Histiocytosis(LCH) is a disease of unknown origin, characterized by abnormal proliferation of Langerhans\` cells. Previously, it has been called histiocytosis X, which included eosinophilic granuloma, Hand-Sch ller-Christian\`s disease, and Letterer-Siwe disease. Any organs or tissues such as skin, lymph nodes, bone and bone marrow can be involved. However, LCH of chest wall is rarely reported in our country. We experienced a 18 month old male child, who had osteolytic lesion involving the rib with axillary lymph node metastasis. The tumor was confirmed as LCH after surgery.