건축 마감재료에서 방출되는 오염물질 특성

윤동원(Dong-Won Yoon) 한국생활환경학회 1998 한국생활환경학회지 Vol.5 No.1

가구에서 방출되는 화학물질 방산량 평가 방법 및 방산특성에 관한 연구

윤동원(Yoon Dong Won),김지현(Kim Jee Hern),강효석(Kang Hyo Suk),김효준(Kim Hyo Jun) 한국건축친환경설비학회 2007 한국건축친환경설비학회 논문집 Vol.1 No.1

During recent years, various studies have demonstrated that indoor chemical pollution causes health problem and also negatively affect healthy indoor environment by occupants. The furniture combined with various components such as wooden materials, adhesives, surface covering and paints emits the chemical compound at the indoor spaces. And It primarily influence the chemical concentrations such as formaldehyde and VOCs (Volatile Organic Compounds). The measurements of individual products were performed in emission test chamber of 1m3 with ventilation rate of 1.0 ACH(air change rate) supplying low-polluting clean air to the test chamber system. During the test, chemicals emitted from furnitures set were analyzed. Also, the characteristics of chemical emission from the furnitures of which were made by both of E2 and EO ranked wooden panels were compared. It is found that furniture stes are a significant source of chemical emissions in small indoor environments. The chemicals may affect a potential health hazard for the occupants.

쾌적하고 건강한 실내 공기환경 구현

윤동원(Yoon Dong-Won) 대한건축학회 2007 建築 Vol.51 No.10

세계 각국의 실내환경에 관한 오염물질과 필요환기량 기준

윤동원(Dong-Won Yoon) 한국생활환경학회 1995 한국생활환경학회지 Vol.2 No.2

USN 기반의 실내환경 측정 및 관리를 위한 휘발성유기화합물질(VOCs) 센서의 동작특성 평가 연구

윤동원(Yoon Dong-Won),김효준(Kim Hyo-Joon),김지현(Kim Ji-Hern),성남철(Sung Nam-Chul),김성수(Kim Sung-Su) 한국건축친환경설비학회 2009 한국건축친환경설비학회 논문집 Vol.3 No.2

The USN(ubiquitous sensor networks) is a dominant trends for building environmental control technology in the coming decades. It is necessary to establish the sensor based control strategies with indoor measurement and system control for improving energy efficiencies with healthy indoor air quality. In this study, schematic concepts for IAQ monitoring unit is described and some results for the test of sensor accuracies in order to select the appropriate sensors to apply USN control system. The measurement of the various kinds of sensors for verifying the accuracies for continuous monitoring as the indoor environmental indicators. After gathering output signals of sensors and sequently transfer as indoor concentrations with the measurement kits, various sensors were compared for the selection with the high accuracies and sensitivities in the test chamber.

[발언과 논평] 저탄소 녹색성장과 건축기술 발전을 위한 소고

윤동원(Yoon Dong-Won) 대한건축학회 2009 建築 Vol.53 No.7

사암도인침구요결(舍巖道人鍼灸要訣)의 변형조합(變形組合) 유형분석(類型分析)

윤동원 ( Dong-won Yoon ),이세용 ( Se-yong Lee ) 사암침법학회 2021 사암침법학회지 Vol.3 No.1

Background: Sa-Ahm’s acupuncture theory is well known of its basic Jung·Seung·Han·Yeol Gyuk formulas. However, it is impossible to treat various symptoms by only using those four formulas, and is also recognized as the limitation that needs to be overcome. To this end, the modified combinations recorded in Chim Gu You Gyuel other than Jung·Seung· Han·Yeol Gyuk are analyzed in this study. Objective: To analyze the modified combinations that are recorded in Sa-Ahm Doin Chim Gu You Gyuel, in order to acquire the knowledge of how to alleviate symptoms that are difficult to treat with Jung·Seung·Han·Yeol Gyuk. Methods: Sa-Ahm Doin Chim Gu You Gyul is composed of 42 diseases including more than 250 acupoint combinations. Among these, approximately 30% of the total cases are modified combinations, and 66 cases of the modified combinations are selected to be analyzed. Result: There are 9 types of tonifying combination and more than 40 types of sedating combination. The tonifying combination types are mostly composed by Won acupoint (原经穴, the acupoint that represents the same element of its own meridian; HT8 of Heart meridian, LU8 of Lung meridian, and etc) with Bon acupoint (本经穴, 5-Shu acupoints other than Won acupoint) that is related with the symptoms. The other tonifying combinations have unlimited relations such as PyoLi (表里), SangSaeng (相生), SangGeuk (相克) or even extra acupoints (特穴). Sedating combination of more than 40 types are very diverse but can be classified by ‘sedate controller’, ‘sedate mother’, ‘sedate son’, ‘sedate its own meridian’, ‘sedate water controller’, ‘sedate fire controller’, ‘connect with other meridians (sedate another meridian than the tonified meridian to link its function)’, and so on. Conclusions: Jung·Seung·Han·Yeol Gyuk are the basics of Sa-Ahm’s acupuncture theory which have excellent clinical efficacy to relatively general symptoms, but when symptoms get complicated to certain degree the clinical efficacy is declined. The acupuncture treatment should include both the tonifying and sedating aspect, and the outcome of the acupuncture treatment is determined by the sedating aspect which makes it very important how to apply the sedating aspect. In addition, Sa-Ahm’s acupuncture theory is a kind of five element acupuncture technique. Therefore, composing the acupoints by pondering the result according by five element theory and six qi relation will lead to outstanding clinical effect to various symptoms, and this brings out the necessity of analyzing the modified combination.

에어비앤비에 대한 소비자의 긍정적·부정적 인식: 온라인커뮤니티 게시글 내용에 대한 텍스트분석을 중심으로

윤동원 ( Yoon Dong Won ),이성림 ( Lee Seonglim ) 한국소비자학회 2019 소비자학연구 Vol.30 No.2

본 연구는 숙박공유 서비스의 대표적 플랫폼인 에어비앤비를 대상으로 공유경제 서비스에 대한 소비자의 긍정적·부정적 인식을 탐구함으로써 공유경제 서비스의 문제점을 진단하고자 하였다. 이를 위해 에어비앤비에 대한 온라인커뮤니티 게시글을 수집하였으며, R프로그램을 사용하여 텍스트마이닝을 수행하였다. 분석 결과 도출된 주요 연구 결과는 다음과 같다. 첫째, 에어비앤비에 대한 소비자인식을 군집분석한 결과, 긍정적·부정적 인식 모두 13가지 유형으로 분류되었다. 긍정적 인식은 감탄, 감명, 성취감, 흐뭇함, 친밀감, 자신감, 허용성, 유희성 등의 감성적 요인에 기반하여 인식하는 비율이 높았고, 부정적 인식은 저품질, 거래 불안전성, 사고처리 비체계성, 공급자 비정상성, 관리불충분, 불편성, 비표준화, 신체위험성, 정보접근 비용이성 등의 기능적 요인에 기반하여 인식하는 비율이 높다. 이러한 결과는 소비자들이 긍정적 인식에서는 감성적인 요인을 중시하고, 부정적인 인식에서는 기능적 요인을 중시함을 시사한다. 둘째, 에어비앤비에 대한 소비자의 긍정적·부정적 인식요인들 사이의 연결구조를 사회 연결망 분석을 통하여 고찰한 결과, 연결구조의 중심 인식은 부정적 인식인 ‘어려움’으로 나타났다. ‘어려움’은 긍정적 인식들인 ‘참여성’, ‘거래편의성’, ‘유희성’, ‘성장성’ 등과 밀접한 연결관계를 가지거나 부정적 인식들인 ‘불만족성’, ‘불법성’, ‘정보접근 비용이성’ 등과 밀접한 연결관계를 가지면서 ‘어려움’을 완화 또는 가중하기도 하는 것으로 나타났다. 지속가능한 공유경제 소비문화를 만들기 위해서는 소비자들이 주저하지 않고 공유경제에 참여할 수 있도록 어려움을 경감시키는 방안을 마련할 필요가 있음을 시사한다. Sharing economy enhances sustainable consumption culture by stimulating sharing a wide range of possessions from tangible assets including vehicles and houses to intangible assets including knowledge and experiences. This study aims to examine consumers’ positive and negative perceptions of sharing economy service using the text data of the consumers’ Airbnb experiences posted in online community. The data were scraped and analyzed applying topic modeling techniques and social network analysis using R program. The major results were as follows. First the highest frequent positive keyword included ‘decent’, ‘communicate’, ‘convenient’, ‘create’, ‘novel’. The highest frequent negative keyword included ‘unable’, ‘expensive’, ‘hard’, ‘go by’, ‘illegal’, etc. Second, positive perceptions toward Airbnb were classified into the 13 categories representing following sentimental factors including senses of ‘admiration’, ‘impression’, ‘pleasure’, ‘familiarity’, ‘confidence’, ‘acceptability’ and ‘playfulness’. Negative perceptions toward Airbnb were classified into the 13 categories representing following functional factors including ‘low quality’, ‘unsystematic accident handling’, ‘abnormality of providers’, ‘lack of management’, ‘inconvenience’, ‘perceived physical risks’ and ‘uneasiness of acquiring information’. Third, the results of social network analysis indicated that ‘difficulty’, ‘participation’ and ‘dissatisfaction’ gained highest degree centrality, ‘accomplishment’, ‘convenience of transaction’, ‘distrust’ gained highest closeness centrality, and ‘heartwarming’, ‘convenience of transaction’, ‘familiarity’ gained highest betweenness centrality. Lastly, nodes with highest eigenvector centrality included ‘difficulty’, ‘participation’ and ‘dissatisfaction’. A sense of ‘difficulty’, which marked the highest centrality indicating the most centrally located concept could be either aggravated or relieved by surrounding nodes such as ‘participation’, ‘convenience of transaction’, ‘playfulness’, ‘growth’, ‘dissatisfaction’, ‘illegality’ and ‘uneasiness of acquiring information’.

지하공동구 내부환경 측정을 통한 결로판별에 관한 연구

윤동원(Dong-won Yoon),성남철(Nam Chul Seong),신동철(Dong-cheol Shin) 한국생활환경학회 2014 한국생활환경학회지 Vol.21 No.6

The underground utility tunnel is a very important infrastructure in modern urbanization. However, it is true that a lot of problems are being pointed out such as the reduction of air quality, reduction of ventilation volume, dew condensation and non-emission of poisonous gas due to the lack of smoke ventilating facilities in case of a fire breaking out in a utility channel because, in relative contrast to the rise in demand of underground utility tunnels in the city, the factors of underground space had not been reflected properly in the design and construction of underground utility tunnels and its maintenance system. Especially, out of these problems, dew condensation may cause the weakening of structural durability, and inflict damages such as corrosion to indoor facilities and electric leakage of electric power facilities. Therefore, the purpose of this study is to establish a database for the environmental information of underground utility tunnels by measuring the temperature, humidity, surface temperature and air stream velocity in underground utility tunnels, and to use it as base data for determining dew condensation The underground utility tunnel located at Inchon, Korea was selected as the subject for the study. It was measured during the autumn season and winter season, each 3 days. The temperature at the utility tunnel was measured by 0.48oC and 9.35oC, respectively during the operation of mechanical ventilation and the temperature of the outlet increased by 0.66oC and 0.09oC each. The surface temperature of the utility tunnel was measured ?0.48oC on average. As a result of measuring the underground utility tunnel which was the subject of this study, it is considered that there will be almost no damages such as the weakening of structural durability, corrosion of indoor facilities and electric leakage of electric power facilities because the conditions for dew condensation have not been met.

공동주택 환기시스템에서 가이드베인형 공기분배기의 풍량분배 특성과 연질 덕트시스템의 성능 평가에 관한 연구

윤동원(Yoon Dong-Won),양승복(Yang Seung-Bok) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.7

The purpose of this study is to improve the air distribution at individual rooms in residential apartment ventilation system. In order to properly distribute the air flow to seven outlets installed, the air distributor has been developed with the inner slit vane and the inside air flow appropriately guide to the seven outlets. And the diameters of outlets can be easily switched with 50㎜ and 65 ㎜ simply attaching the adapters for controlling the air volume according to the length of duct work to the individual room and ventilation requirement. Also the flexible duct work material made of EVA(Ethylene-Vinyl Acetate) has been introduced for easily installing the duct system without any fitting. The air flows at the outlets have been measured with different air supply volumes and the characteristics of air distribution in branched outlets have been estimated with various experimental conditions. The results have been compared with those of convention types of ventilation system. The newly designed air distributor and EVA flexible duct system suggested in this study could be contribute to supply air volume to the rooms efficiently. The results shows well distributing the air volume required for the individual room without any TAB activities. It could be reduced the initial cost for the residential ventilation system, because of ease installation and minimizing the pressure drops without any fittings for connecting branch ducts.