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행동유도성(affordance)을 기반으로 한 부산 도심 버스정류장(bus bay)의 고찰
권태정(Kwon, Tae Jung),오세경(Oh, Se Kyung),윤재봉(Yoon, Jae Bong) 한국도시설계학회 2012 도시설계 : 한국도시설계학회지 Vol.13 No.1
부산 도심 버스정류장의 운영ㆍ활용실태를 고찰하고 향후 개선안을 제안하기 위한 본 연구는 미국의 심리학자 깁슨(J. Gibson)의 행동유도성(affordance)을 기반으로 현재 부산 도심의 버스정류장의 문제점을 살펴보고 이를 기반으로 버스정류장 공간개선안을 도출하였다. 도심 버스정류장의 다양한 이용주체별로 요구되는 버스정류장의 행동유도성 비교분석과 함께 ‘버스운전사’와 ‘버스이용객’을 대상으로 한 설문조사 및 계층화분석 결과에 따르면 향후 도심 버스정류장의 공간개선은 크게 버스 정ㆍ발차관련 편의성 제고 및 일반운전사의 주ㆍ정차관련 불법행위 배제, 나아가 교통약자 버스이용객을 고려한 공간개선이 필요한 것으로 밝혀졌다. 이상과 같은 세 가지 공간개선 시사점을 바탕으로 본 연구는 플랫폼 형태의 두 가지 개선안을 제시하고 도입가능성을 차량소통관련 시뮬레이션을 통하여 검토하였다. 하지만 금번 버스정류장 공간개선안의 현실 적용에 앞서 본 연구의 후속 연구로서 보다 세밀한 교통 시뮬레이션 검증ㆍ검토와 교통약자관련 버스정류장 행동유도성 연구가 필요한 것으로 판단된다. As the first step towards the spatial improvement of urban bus bays for public transportation in Busan, Korea, the main purpose of this research is to propose a spatial fix or alternative for the bus bay system today. This research evaluates current urban bus bay designs and activities in and around the urban bus bay location and examines its spatial properties through the lens of J. Gibson’s affordance. Comparative analysis of urban bus bay’s varying affordances along with AHP analysis of bus drivers and bus users surveys suggest that future spatial fix or alternative needs to address the following issues: (1) the improvement of stopping- and departing-related affordance of the urban bus bay, (2) the discouragement of illegal stopping and parking, and (3) special considerations for the mobility handicapped. This suggestion leads the way to two urban bus bay alternatives, which are platform-shaped. Practical application or adoption of the alternatives, however, need to be validated by future researches on traffic impact simulations and on affordance for the mobility handicapped.
감귤의 Bioflavonoids 분리, 정제 및 혈압강하효과
손흥수(Heung-Soo Son),김현숙(Hyun-Sook Kim),권태봉(Tae-Bong Kwon),주진순(Jin-Soon Ju) 한국식품영양과학회 1992 한국식품영양과학회지 Vol.21 No.2
냉동 건조한 귤(Citrus sinensis)의 껍질로 부터 methanol과 butanol추출물인 crude bioflavonoids를 건조 중량으로 최초 시료대비 약 0.26%의 수율을 얻을 수 있었다. 이 crude bioflavonoids를 gel filtration, HPLC를 이용하여 분리, 정제하였고 TLC, HPLC, UV spectrum, NMR spectral analysis를 통해 narirutin과 hesperidin으로 동정할 수 있었다. 또한 HPLC 정량분석 결과, narirutin과 hesperidin은 crude bioflavonoids의 g당 42㎎과 530㎎을 얻을 수 있었으며 귤 껍질의 주요 bioflavonoid는 hesperidin으로 판명되었다. 한편 실험동물인 Sprague-Dawley종의 흰쥐를 대상으로 혈압 변화를 측정한 결과 귤 껍질의 주요 bioflavonoid성분인 hesperidin은 약물 투여후 유의성있게(p<0.001) 혈압 저하효과가 있음을 관찰 할 수 있었다. The crude bioflavonoids were obtained by methanol and butanol extraction from lyophilized orange (Citrus sinensis) peel. And then, its yield was about 0.26% in dry base. Two bioflavonoids were purified by gel filtration and HPLC, and could be identified narirutin and hesperidin through TLC, HPLC, UV spectrum and NMR analysis. The yields of narirutin and hesperidin from a gram of crude bioflavonoids were 42㎎ and 530㎎ respectively, and the main fraction of bioflavonoid from orange peel was supposed to be hesperidin. Each component was intravenously injected into Sprague-Dawley rats (1 ㎎/100g body weight) and hesperidin was found to lower their blood pressure significantly (p<0.001).
權泰鳳,吳成基 경희대학교 부설 식량자원개발연구소 1985 硏究論文集 Vol.6 No.-
The synergistic antioxidation effect of α-tocopherol and soybean phospholipid was examined by measuring peroxide value at 100℃, 150℃ and 200℃ with time. Various concentrations of tocopherol and phospholipid were added to the edible soybean oil respectively. When phospholipid was not added the antioxidation effect of tocopherol was more found at 0.01% addition level than 0.05% or 0.1% addition level. In the case of phospholipid was added the antioxidation effect was more significantly found than phospholipid not added and, when the addition level of tocopherol was increased the antioxidation effect of phospholipid was found at higher phospholipid addition level. But at the low addition level of tocopherol, the high phospholipid addition level was decreased antioxidation effect. When the 0.05% tocopherol and 0.1% phospholipid was added to the edible sobean oil at 100℃, the antioxidation effect was exhibited to maximum and also, 0.05% tocopherol and 0.05% pbospholipid at 150℃ too. The antioxidation effect was increased with an increase phospholipid addition level at 100℃ but at the low addition level of topherol, the antioxidation effect was decreased with an increase phospholipid concentrations at 150℃. The antioxidation effect was not significantly different from phospholipid and tocopherol at 200℃.
식용대두유에 대한 Chelating agent 의 항산화 효과
권태봉,오성기,조미자,함태식 한국농화학회 1989 Applied Biological Chemistry (Appl Biol Chem) Vol.32 No.1
Some chelating agents are evaluated as an antioxidant for the autoxidation of soybean oil. Soybean oil is autoxidized under a mild condition (the flow rate of 67㎖ O₂/min and 50℃). The antioxidant effect is measured by active oxygen method, and the spectral change of autoxidized soybean oil examined. The antioxidant effect of chelating agents is increased in order of diphenic acid, naphthoquinone, pyromellitic acid, quinolinic acid and naphthalic acid, and particularly the effect is low in diphenic acid and naphthoquinone. It is found that the effect is more clearly demonstrated by NMR rather than IR and UV and that the effect is dependent on the functional group and geometric molecular structure of chelating agents.
權泰鳳,吳成基 慶熙大學校 1983 論文集 Vol.12 No.-
Edible rapeseed oil containing about 30% erucic acid was hydrogenated using nickel catalyst under 1 atm. and other various reaction conditions. Physicochemical change of the reaction products was examined by measuring iodine value, refractive index and melting point. Also, the kinetics was studied by measuring iodine value. The results obtained are as followed: It was found that the hydrogenation of rapeseed oil at 170℃ and 0.1% catalyst level was followed the first-order kinetic, and the rate constant was calculated to be 3.9×10^-3 min^-1·Iodine value was decreased with an increase of reaction temperature, time and catalyst concentration. Refractive index and melting point were increased with a decrease of iodine value. The correlation factor between refractive index and iodine value was RI=0.00015 IV+1.4512.