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RF-PECVD 증착에 의한 DLC 코팅막의 트라이볼로지적 특성에 관한 온도의 영향
조용경(Yong-Kyung Cho),전홍규(Hong-Gyu Jeon),조대현(Dae-Hyun Cho),이영제(Young-Ze Lee) 한국트라이볼로지학회 2006 한국트라이볼로지학회 학술대회 Vol.2006 No.6
DLC (Diamond Like Carbon) films show very desirable surface interactions with high hardness, low friction coefficient, and good wear-resistance properties. The friction behavior of hydrogenated DLC film is dependent on tribological environment, especially surrounding temperature. In this work, the tribological behaviors of DLC (Diamond-like carbon) films, prepared by the radio frequency plasma enhanced chemical vapor deposition (RFPECVD) method, were studied in elevated temperatures. The ball-on-disk tests with DLC films on steel specimens were conducted at a sliding speed of 60 rpm, a load of 10 N, and surrounding various temperatures of 25℃, 40℃, 55℃ and 75℃. The results show considerable dependency of DLC tribological parameters on temperature. The friction coefficient decreased as the surrounding temperature increased. After tests the wear tracks of hydrogenated DLC film were analyzed by optical microscope, scanning electron spectroscopy (SEM) and Raman spectroscopy. The surface roughness and 3-D images of wear track were also obtained by an atomic force microscope (AFM).
공공사업의 사후평가를 통한 사업선택 절차 수립에 관한 연구
조용경(Cho Yong-Kyung),조영태(Cho Young-Tae),윤영호(Yoon Young-Ho) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.5
Korea, long-term public rental housing has started to supply as permanent rental housing since 1989. Then, several types of long-term rental housing have been supplied. Therefore the facilities are so aged that residents require to improve them. And government wants to provide with the same quality of rental housing to residents who have the same qualifications. So the public projects have begun to improve the facilities of long term rental housing in 2009. However, the process of implementation and budgeting for projects is determined during the short period. Therefore, the selection process of projects elements need to improve. This study aims to improve the selection process through the post-evaluation of residents and relevant persons. Pursuant to the post-evaluation 4 directions of improvement are suggested and the applicable selection process for the next projects. The results of this study is to establish the direction of policy for the next public projects and the selection process of the other public projects for improving aged facilities basis on the post-evaluation.
노후 영구임대주택 주거복지기능 강화를 위한 재구조화 방안 연구
조영태(Cho Young-Tae),노상연(Roh Sang-Youn),조용경(Cho Young-Kyung),이지은(Lee Ji-Eun),윤영호(Yoon Young-Ho) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.4
The permanent rental housing mainly provided in early 1990’s are up to 190,000 households and are contributed to supply the appropriate housing to vulnerable class. However, there is a limitation to take a role of residential welfare due to the aging of facilities and the concentration of vulnerable tenants. This study aims to seek the necessities and improvement direction of permanents rental housing’s restructuring. For this goal, this study analyzed the physical and social characteristics of housing and investigated legal and institutional changes and tenant’s needs. ’Welfare-Housing’ means the additional building that residential function combined with welfare functions and legally based on the ’The Act to Support for Improving the Quality of Tenant’s Life in Long-term Public Housing(2009)’. In conclusion, this study suggest the Welfare-Housing as the methods of restructuring housing for strengthening of residential welfare. With utilizing of Welfare-Housing, it seems possible that both aging permanent rental housing and quality of tenant’s life would be improved.
노후 영구임대주택 특성을 고려한 단지유형별 자산관리 방안
조영태(Cho Young-Tae),윤영호(Yoon Young-Ho),조용경(Cho Yong-Kyung),이부현(Lee Boo-Hyun) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.7
The permanent rental housing was supplied 190 thousand households from 1989 and have used for rental during 18~21 years. The residents require to improve the aged facilities and the cost of maintenance is being increased. A temporal and occasional facility management doesn’t cope with the cost of maintenance and the needs of resident for high performance. However, previous studies have been concerned with introduction of asset management and management system. Therefore this study aim to suggest the asset management by consideration and classification of permanent rental housing(LH, 140 thousand households). This study is consist of 1)the status of permanent rental housing and residents, 2)a theoretical study of asset management, 3)classification of permanent rental housing, 4)asset management for each type. As the results of this study, the characteristics in demand and supply is deducted and 126 housing is classified 4 types. Each housing is recommended asset management(FM, PM, AM, Advanced AM) individually. The results of this study are expected to be a guide to establish the action plan for the asset management and the improving of facilities.
노후 영구임대주택 주거복지동 및 복지서비스 공급방안 연구
조영태(Cho, Young-Tae),노상연(Roh, Sang-Youn),조용경(Cho, Young-Kyung),이지은(Lee, Ji-Eun),윤영호(Yoon, Young-Ho) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.10
Long-Term Public Rental Housing aims to supply the housing for the low-income vulnerable class in our society. However, owing to superannuated facilities and decreasing of it"s performance, long-term public rental housing in Korea are in difficult situation to secure the quality of tenant"s life. With respond to this tough situation, "Act on the Support for Improving the Quality of Lives of Tenants in Long-Term Public Rental Housing" were enacted and the policy that additional building is supplied on the remanent site in public housing were suggested as a name of "Welfare-Housing Project". Pilot program of this project is under progress and the construction methods of planning and the establishment of welfare service functions are required to success. Therefore, this study aims to investigate the construction methods types and suggest the housing welfare service function to apply for existing housing in consideration of tenant"s needs and housing characteristics. The targets of this study are 126 permanent rental housing owned by LH. The physical supply plan for welfare-housing are suggested as 5 construction types including supplement type, remodeling type and etc. In addition, for the application of welfare service function, 7 welfare service types are proposed on basis of 3 steps choice model.
고령자를 고려한 AAL기반의 스마트 공동주택 수요특성 연구
조용경(Cho, Yong-Kyung),윤영호(Yoon, Young-Ho) SH도시연구원 2014 주택도시연구 Vol.4 No.2
For In Korea, there are increasing both aged people and one-person household. Since aged people can't realize Active aging, it is effecting to increasing of a personal difficulty and society cost. Therefore government is planning the development for AAL based smart housing by considering aged people in order to ensure Active Aging. But, before start developing, it is necessary to establish the policy or technical development direction. And to establish their direction, we need to figure out the demand characteristics of demanders(aged people). Therefore, the purpose of this study is to draw the demand characteristics of AAL based smart housing. For this purpose, we can separate the demand characteristics to two demand factors. One is to draw characteristic of consumer's features and needs which effect on their purchasing ability. And another is to draw their acceptable price level and interval. To practical analysis, we use the descriptive statistic analysis method and PSM(Price Sensitive Method). As a result of analysis, we find that most of them want the healthcare service to be the Active Aging. And they want the monitoring system to prevent an unexpected accident in their house. Their acceptable price and its interval are life management(65,500won)> public space(61,000won)> personal space(56,250won). Their price sensitive about AAL based smart housing service is personal space(25,000won)>life management(15,500won)> public space(13,000won).
PSM 기법을 이용한 AI 스마트 하우징 서비스 및 플랫폼 시장 수용 가격 추정
조용경(Cho, Yong kyung),윤영호(Yoon, Young Ho) 한국주거환경학회 2021 주거환경(한국주거환경학회논문집) Vol.19 No.3
The market of AI smart housing services and platforms is expanding with the advancement of ICT technology. Therefore, competition is high for market expansion and preoccupation in the platform industry, furniture and interior industry, electronic device industry, construction industry, and communication industry. But we have already known users(residents) are the most important. And the value perceived by users is priced in the market. Therefore, it is necessary to confirm the price range of AI smart housing services and platforms that are acceptable in the market. Therefore, the purpose of this study is to confirm the distribution structure of AI smart housing service and platform acceptable in the market, and to estimate the price range suitable for the distribution structure. As a result of this study, the intelligent home network most similar to the AI smart housing residential service and platform is basically distributed in the form of a subscription economy. Among the three types of subscription economy, the service is provided by paying a fixed fixed fee. In other words, it is a form of paying a monthly subscription fee and using all services and platforms. Accordingly, we estimated the monthly subscription fee of AI smart housing service and platform using PSM with a sample of 300 apartment dwellers nationwide. As a result of PSM analysis, the market acceptable price range was found to be between 16,000 won and 26,000 won for monthly subscriptions. And the price that maximizes demand is 18,000 won.The SPR was about 2,000 won, indicating that price sensitivity was not great. These results suggest the minimum price range for the AI smart housing service and platform to be basically supplied in the future in the apartment where about 70% of the people live, without being alienated from the market. In addition, it can be used as a practical reference for entities planning to advance into AI smart housing services and platforms throughout the market.
영구임대주택 고령자 거주만족 향상을 위한 스마트홈 기본방향에 관한 연구
조용경(Cho Yong-Kyung),양동석(Yang Dong Suk),윤영호(Yoon Young-Ho) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(계획계)
Many social problems are occurred like the healthcare, housing and pubic finance, since senior population is increasing highly in Korea. Therefore, it is necessary to provide aged residents with the Smart Home and its space design direction for healthcare . This study is aims to suggest the basic direction of Smart Home for aged residents by analysing the residential satisfaction of permanent rental housing. The result of the study, Smart Home has to provide with the healthcare service that is sustainable, economical, universal and stable as the basic direction.