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김기헌(Ki Heun Kim),김명녀(Myung Nyu Kim) 대한약학회 1992 약학회지 Vol.36 No.6
Sevral flavonoids were isolated from the ethanol extract of Carthami flos which has been used in treatment of uterin congestion and also as analgesic and antiinflammatory. They were elucidated as kaempferol, quercetin, 6-hydroxy kaempferol, kaempferol 3-glucoside (Astragalin), quercetin 3-glucoside (isoquercitrin), quercetin 7-glucoside (quercimeritrin), kaempferol 3-rutinoside and quercetin 3-rutinoside (rutin). The structures of the isolated compounds were established by spectroscopic and chemical methods.
Sodium 5-Methoxy Salicylate의 흡수촉진 효과에 관한 연구(II) 흡수촉진제에 대한 반응성
김기헌(Ki Heun Kim) 대한약학회 1986 약학회지 Vol.30 No.2
Absorption enhancing effect of 5MSA-Na at the mucous membranes of the rectum and duodenum was studied via in vitro sac test. There were no significant differences between two membranes. Effect of 5MSA-Na on the transfer of CMZ to the tissue was also studied via in situ loop method. There was no significant difference at the duodenum, compared to the control when CMZ was administered intravenously. Transfer of CMZ to the loop of the rectum was increased in the presence of 5MSA-Na compared to the control, which might be attributed to the enhanced permeability of the mucous membrane of the rectum.
Hydrodemolition에 의한 콘크리트 파쇄기준 제안을 위한 실험적 연구
정원경(Jeong Won-Kyong),김기헌(Kim Ki-Heun),윤경구(Yun Kyong-ku),김용곤(Kim Yong-Gon) 대한토목학회 2009 대한토목학회논문집 D Vol.29 No.1D
열화된 콘크리트 구조물 보수에 있어, 보수재를 사용하기 전에 열화부위는 완전히 제거되어야 한다. 워터제트 공법은 열화된 콘크리트를 제거하는 방법 중에 하나로 철근 및 건전한 콘크리트에 손상을 주지 않으면서 손상된 콘크리트를 제거할 수 있는 매우 효과적인 방법으로 알려져 있다. 이러한 워터제트의 사용은 표면요철형성 등으로 신구 콘크리트의 부착력을 향상시킨다. 본 연구에서는 국내에서 적용되고 있는 워터제트 장비를 사용하여 콘크리트 슬래브 강도에 변화를 주어 파쇄깊이에 따른 강도추정식을 제안하고 하였으며 이를 통해 워터제트 관련 규정제안 및 보수보강 시 사용되고 워터제트 장비에 대한 기초적인 정보를 제공하고자 한다. To repair the deteriorated concrete structures, the deteriorated parts should be removed by using surface treatment methods and replaced by new construction materials. Hydrodemolition is one of the most effective methods for chipping off the deteriorated concrete and treating the remaining concrete. The water jet can remove the deteriorated concrete without damaging the reinforcement steel and surrounding aggregates. Using the water jet system improves surface texture, which ensures to improve adhesive strength between new and old concretes. In this study, three different concrete slab strengths and two water jet machine sets were investigated. Experimental results showed the relationship between concrete strength and water jet condition and this would enable to provide the information of the domestic water jet system and specification, which would contribute to automatization and efficiency of concrete repairing and rehabilitation works.