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최춘환 대한건축학회 1984 建築 Vol.28 No.2
본 논고에서는 건축예술 이념의 표현의지와 표현형식과 의 관계를 규명하기 위하여 [미적 공간체험]을 부여하는 대표적 건축공간의 구현체인 Gothic 성당의 건축공간 구성 요소중 몇가지 요소들을, 건축공간의 개념 및 성소공간 개념 분석을 전제로하여 고찰하고저 한다.
Antioxidant Constituents and a New Triterpenoid Glycoside from Flos Lonicerae
최춘환,Hyun Ah Jung,강삼식,최재수 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.1
As a component of our continuing investigations into herb-derived antioxidant agents, we have evaluated the antioxidant effects of Flos Lonicerae (Lonicera japonica flowers), via 1,1-diphenyl- 2-picrylhydrazyl (DPPH) radical, total reactive oxygen species (ROS), hydroxyl radical (·OH), and peroxynitrite (ONOO–) assays. Among the methanolic extract and the dichloromethane, ethyl acetate, n-butanol, and water fractions, the EtOAc fraction of Flos Lonicerae exhibited marked scavenging/inhibitory activities, as follows: IC50 values of 4.37, 27.58 ± 0.71, 0.47 ± 0.05, and 12.13 ± 0.79 μg/mL in the DPPH, total ROS, ONOO–, and ·OH assays, respectively. Via a bioactivity-guided fractionation approach, a new triterpenoid glycoside, oleanolic acid 28-O-α-L-rhamnopyranosyl-(1→2)-[β-D-xylopyranosyl(1→6)]-β-D-glucopyranosyl ester (12), along with eleven known compounds, including chrysoeriol (1), luteolin (2), 5- hydroxymethyl-2-furfural (3), caffeic acid (4), protocatechuic acid (5), chrysoeriol 7-O-β-D-glucopyranoside (6), isorhamnetin 3-O-β-D-glucopyranoside (7), kaempferol 3-O-β-D-glucopyranoside (8), quercetin 3-O-β-D-glucopyranoside (9), hederagenin 3-O-α-L-arabinopyranoside (10), and luteolin 7-O-β-D-glucopyranoside (11), were isolated from the EtOAc fraction. The structures of isolated compounds 1-12 were elucidated via spectroscopic analyses. Compound 12 was isolated from a natural source for the first time. Compounds 2, 4, 5, 7, 9, and 11 evidenced marked scavenging activities, with IC50 values of 2.08-11.76 μM for DPPH radicals, and 1.47-6.98 μM for ONOO–
安東 土溪洞 : 안동댐 수몰지구 건축환경 현기조사 a Traditional Village near Andong Dam in Korea
崔椿煥,張聖浚 명지대학교 1977 明大論文集 Vol.10 No.-
This report is a field survey of architectural environments of Tokyedong (Sang-kye, Hakye, Kyenam), a traditional village near Andong in Korea. The presen pattern of this willage was much influenced by Lee Whang (1501~1570), a famous scholar in Chosun Dynasty. From that time on, his descendents have been living here composing family-villages. Now this area loses the glory and vividness of the past, byt the traces of the original form have been maintained because of the topographical condition and the conservative tradition of the village character. This village will be immersd under water at the end of 1977 due to the completion of newly made Andong dam. This survey report was made to record the traditional architectural environment and its background, and to be one of the basic references to the study of Korean Architecture.
崔椿煥 명지대학교 공학기술연구소 1991 공학기술연구소 논문집 Vol.6 No.-
This study is an Experimental analysis of the relation between nature and an intrinsic attribute of Architectural beauty. For the object of this paper, the contents is composed of character of artistic imitation of nature, character of architectural imitation of nature and analysis on concept of organic architecfure At the concluscon of his analysis, for the attainment of the explanation on the nature of architectural beauty relationed with natural substance, we need more deep study on architectural thougth of the Korean, the Orient and the Occident base on ontology, the theory of knowledge and modern methdologies on the substance of nature
최춘환,Joo-Won Yoon,연규환,김영섭,유시용,석순자,Sunny Kang,김영호 한국생약학회 2012 Natural Product Sciences Vol.18 No.4
Mushrooms have a long history of use in traditional medicine, and hundreds of novel constituents in mushrooms with miraculous biological properties have been identified recently. Although diverse effects for medicinal use of mushrooms such as anticancer activity are proven, their reversal activities of drug resistance in cancer cells was rarely reported so far. In the search for novel medicinal use of mushrooms, we tested the multidrug resistance (MDR) reversal activities of diverse mushrooms collected from Korea. Among, the mushroom extracts tested, Cantharellus cibarius (M02) and Russula emetica (M12) revealed MDR reversal activities of paclitaxel in the P-glycoprotein (Pgp)-positive HCT15 and MES-SA/dX5 cancer cells, but not in the Pgp-negative A549 and MES-SA cancer cells. In addition, these mushrooms also enhanced the cytotoxicity of doxorubicin, another well-kwown Pgp-associated anticancer drug against MES-SA/DX5 cells, but not against MES-SA cells. Meanwhile, the cytotoxicity of cisplatin, a well-known Pgp-non-associated anticancer drug, was not affected by the mushrooms all the cells tested. From these results, we suspected that some ingredients of M02 and M12 have Pgp-associated MDR reversal activities.
崔椿煥 명지대학교 1977 明大論文集 Vol.10 No.-
This study was made to investigate elemental characteristic of Korean Wooden struetural style, established in the late period of Koryo Dynasty and the early years of Chosen Dynasty, by the method of observation and analysis about rem-ains of these periods. In Korean Architecture, elemental style of wooden strukure is classefied into the firat style, thesecond style, the third style and the lk kgong style, of the Joo simpo, and than the pure Dapo style and the Compromised style.