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Isovist 기반 원자력 발전시설의 유형별 시각적 노출도 평가
신재섭,송정욱 대한공간정보학회 2023 대한공간정보학회지 Vol.31 No.3
The visual exposure of NIMBY (Not In My Back Yard) facilities can create a sense of anxiety and aversion among local residents, leading to negative perceptions. Therefore, efforts are needed from the planning stage to minimize unnecessary anxiety and aversion towards the facility caused by its visual exposure. This study evaluated the visual exposure of nuclear power plant (NPP) in adjacent areas. Two indicators, Visible area ratio and Surface exposure ratio, were used to quantitatively measure the visual exposure. The Kori region in South Korea was selected as the analysis target area. The results showed that the newly proposed nuclear power plant (Type-2) has lower visual exposure than the existing nuclear power plants (Type-1). This is expected to reduce the anxiety and rejection of nuclear power plants due to visual exposure.
고압 유화 기기를 이용한 수첨 Lecithin 의 O/W Miniemulsion
신재섭,배덕환 한국공업화학회 2000 응용화학 Vol.4 No.1
Recently hydrogenated lecithin has been studied widely for the safety of skin. Hydrogenated lecithin reduces the surface tension less than normal non-ionic surfactant and has been used as a co-surfactant. In this report, we have studied the stability of low viscosity emulsion stabilized by hydrogenated lecithin using high pressure mixer. In the first step, coarse emulsion was prepared with hydrogenated lecithin and liquid paraffin and then this emulsion was passed through high pressure mixer in order to make miniemulsion. We also expected the stability of emulsions by measuring zeta-potential.
Preparation and Characterization of Vesicles Using Octasubstituted Cyclotetraphosphazene
신재섭,박철순,Chun Il Lee 대한화학회 2008 Bulletin of the Korean Chemical Society Vol.29 No.10
A cyclotetraphosphazene derivative with eight chains was synthesized from octachlorocyclotetraphosphazene. The vesicles were prepared using the cyclotetraphosphazene derivative and cholesterol. The resulting vesicles were characterized by TEM and measurements of their encapsulation efficiency. The stability of the vesicles was enhanced with the addition of dihexadecylphosphate. The size and the encapsulation efficiency of the vesicles changed according to the amount of cholesterol added. The size and the encapsulation efficiency of the vesicle were lowest when the mole ratio (cholesterol: the cyclophosphazene derivative) was 0.9.