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1인 가구 공유 주택의 공유 공간 구성 특성에 관한 연구
최준환(Choi, Jun-Hwan),박서준(Park, Suh-Jun),이도훈(Lee, Do-Hun) 한국주거학회 2016 한국주거학회 논문집 Vol.27 No.5
This study was designed to derive the characteristics of shared space composition of shared housing for one-person household through an examination on domestic and overseas cases. To examine the systematic approach to the planning of shared space, the concept and current status of shared housing were analyzed; and, the concept of shared space was derived based on the concept of Altman and, through the analysis on cases of shared housing, the shared space was classified into shared spaces for living support, passage, and community. And then, based on the standard of classification of shared space, the configuration of shared space in shared housing was examined through the analysis on domestic and oversea cases. Thereby, the arrangement and function of each type of compartment in shared space were examined and the configuration of the shared space prepared for an entrance of residents was analyzed and classified into 6 types. Each type revealed a relationship between privacy, living, passage and internal community which were all provided with respective configurative characteristics of each space. Result obtained from this study is estimated that they could be used as a basic data for the design or planning of shared spaces in shared and further, they could also be employed for the design or development of shared spaces of such houses taken the type and characteristics of residents into account.
치아임플란트 체결 잔류응력과 풀림 현상에 따른 파손 평가 및 강건한 치아임플란트 모델 개발
최준환(Jun-Hwan Choi),박찬호(Chan-Ho Park),강성욱(Seong-Wook Kang),이용석(Yong-Seok Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
As the aged population growth in recently, the dental implant is highlighted due to the increased demand of dental implant. However, one of technical problems in dental implant is fracture of dental abutment and fixture. The significant presumption cause of dental abutment and fixture failure is loosening between the abutment and the fixture. In order to quantitatively analyze the reason of dental implant failure in the aspect of mechanical behavior, finite element analysis of dental implant was performed by the different masticating force and loosening conditions. The higher residual stress which occurred at fastening the abutment and the fixture made the higher probability of implant failure. Therefore, we propose a new dental implant model, a wedge-shaped dental implant model, that can prevent loosening between the abutment and the fixture.
보행 안전망 구축을 위한 택시 운행 데이터 시각화 분석
최준환(Jun-Hwan Choi),박현수(Hyeon-Soo Park) 대한공간정보학회 2016 한국지형공간정보학회 학술대회 Vol.2016 No.05
본 연구에서는 서울시가 공개한 공공데이터의 활용가치를 높이고 보행 안전망 구축을 위한 공공데이터 활용 가능성을 모색하기 위해 서울시 택시 운행 데이터를 시각화하여 분석하고 도시 환경에 대한 특성에 대해 연구하고자 하였다. 이에 따라 서울시 택시 운행 데이터를 지도 기반으로 웹상에 구현하고 각 데이터 항목의 효율적 활용을 위해 가공하는 절차를 거쳤다. 이러한 지도 기반 데이터 구축은 택시 운행 데이터를 효율적으로 분석하기 위한 목적이 있으며 이를 통해 추가적인 데이터를 반영하여 도시 보행 네트워크와의 관계를 파악하고자 하였다. 이에 따라 서울시 전 자치구에서 시행중인 여성안심귀갓길과 택시운행 데이터의 상호 맵핑 작업을 통하여 택시 하차 위주의 지정 구역 적절성을 검토하였다. 또한, 보행 안전망 구축을 위하여 택시 운행 데이터 활용에 관한 그 가능성과 한계를 파악하고자 했다.
분말사출성형으로 제조된 퍼말로이 연자성체에서 잔류 불순물이 자기특성에 미치는 영향
정원용(Won Young Jeung),최준환(Jun Hwan Choi),정우상(Woo Sang Jung) 한국자기학회 2000 韓國磁氣學會誌 Vol.10 No.6
The manufacturing method of permalloy soft magnet with the Ni contents of 46.6 and 47.2 wt.% was investigated by powder injection molding technology. The magnetic properties of permalloy were greatly affected on the residual carbon and oxygen content of the sintered magnet. Solvent extraction and thermal debinding process to minimize the residual carbon content in sintered magnet were developed by controlling the debinding atmosphere. The residual carbon content depends on the debinding condition of the binder system for powder injection molding and the residual oxygen content on the sintering atmosphere. The sintered magnet produced by powder injection molding process had a 50 ppm. residual carbon, 150 ppm. residual oxygen. The coercivity and maximum relative permeability of permalloy soft magnet were 0.46 Oe and 14,600 respectively.