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공간 내 부유한 바이러스에 대한 광촉매 TiO<sub>2</sub>가 코팅된 에어 필터의 항바이러스 효율 평가
박근영,박성재,구현본,김성준,황정호,Park, Geunyoung,Park, Sungjae,Koo, Hyun-Bon,Kim, Seongjun,Hwang, Jungho 한국입자에어로졸학회 2019 Particle and Aerosol Research Vol.15 No.4
Since airborne viruses have been known to aggravate indoor air quality, studies on the development of anti-viral air filter increase recently. In this study, the pressure drop and anti-viral efficiency of TiO<sub>2</sub> coated ceramic ball filter were evaluated. After the filter being inserted into a commercial room air cleaner, chamber test with aerosolized bacteriophage MS2 was performed. The porosity of TiO<sub>2</sub> coated ceramic ball filter was 0.85, and pressure drop was about 13 Pa for 1 m/s of air velocity. The anti-viral efficiency was about 93% when the reaction time was 25 minutes in a 1 ㎥ chamber.
박근영,김일영,이종희,Park, Guen-Youn,Kim, Il-Youn,Lee, Jong-Hee 항공우주시스템공학회 2012 항공우주시스템공학회지 Vol.6 No.2
This is the study to introduce the interpretation and application of standard parts for civil aviation. The standard parts is considered one of replacement and modification parts acceptable to the civil aviation authority.
국내 개발 항공기에 대한 항공안전 고장보고 제도운용에 대한 고찰
박근영,유승우,Park, Guen-Young,Yoo, Seung Woo 한국항공운항학회 2016 한국항공운항학회지 Vol.24 No.1
ROK issued its first type certificate to the KC-100 airplane, Part 23 normal category, and become the State of Design (SoD) in 2013. Before this, ROK aviation regulations were focused on the operation and continued airworthiness of aircraft registered and operated in ROK that were designed and manufactured in another contracting state. Therefore the implementation of reporting system were restricted to gather the failure and service difficulty reports from the owners or operators and transmit the information to the State of Design and/or the manufacture relating to the type certificated aircraft. However, ROK, to fulfill the accountability of the State of Design, has to ensure there is a system to address the information received from the State of Registry on failure, malfunctions, defects and other occurrences that might cause adverse effects on the continuing airworthiness of the korean type certificated aircraft. This paper presents an overview of ICAO requirements for the State of Design, and current implementation of reporting system of USA and Japan and discusses the current status and further considerations on the rule-making for the malfunction, defect and failure reporting system applicable to the korean indigenous aircraft.
박근영,진영권,이종희,Park, Guen-Young,Jin, Young-Kwon,Lee, Jong-Hee 항공우주시스템공학회 2011 항공우주시스템공학회지 Vol.5 No.2
This is the study to introduce the Japanese Type Certification System for Domestic Aircraft and current status of Bilateral Aviation Safety Agreement. The study on the Japanese Type Certification System will contribute to understand our aircraft certification system and will be a reference in performing the Type Certification Project on KC-100 airplane in the Part 23 Normal Category.
FCEV용 고압 밸브 실링부의 고무재질에 따른 기밀해석
박근영,양갑진,노의동,박준수,전문수,이형욱,Park, G.Y.,Yang, K.J.,Ro, E.D.,Park, J.S.,Chon, M.S.,Lee, H.W. 한국교통대학교 융복합기술연구소 2017 융ㆍ복합기술연구소 논문집 Vol.7 No.2
The design of sealing mechanisms of a manual pressure valve was analyzed with FE analysis for a hydrogen fuels charge and discharge system of FCEV. The damage prediction of the O-ring with respect to the material models of rubbers was calculated by the gap analysis of the backup ring and O-ring according to the internal pressure. Two kinds of the rubber material characteristic models were adopted to the O-ring. One was the linear elastic and the other was hyperelastic of Ogden $3^{rd}$ order model. The experimental data of urethane of Shore hardness 90 was utilized to the curve fitting of hyperelastic properties. It was found that the contact pattern of the backup ring was different in two models and the sealing mechanism was better in the case of the hyperelastic characteristic model.
박근영,조선미,정영기,Park, Keon-Young,Cho, Sun-Mi,Chung, Young-Ki 한국정신신체의학회 1996 정신신체의학 Vol.4 No.1
In this cluster analysis of out-patients with irritable bowel syndrome (IBS) we described the psychological features and personality patterns of these patients. The Minnesota Multiphasic Personality Inventory (MMPI) was administered to 29 IBS patients who received treatment in the gastroenterology department of Ajou University Hospital to produce individual profiles for each patient. The 29 profiles with 13 standard scales, 15 content scales and 11 personality scales were subjected to cluster analysis resulting in three clusters of the original sample. Titles used to describe the psychological features and personality patterns seen in the three clusters included : (1) depression and anxiety : (2) somatization and denial of affect ; (3) anger overcontrol. Future studies on the treatment of IBS patients may well consider these features, as IBS patients have different psychological patterns.
박근영,허근섭,이상룡,이춘영,Park, Keun Young,Heo, Guen Sub,Lee, Sang Ryong,Lee, Choon Young 대한임베디드공학회 2008 대한임베디드공학회논문지 Vol.3 No.3
Mobile robots can offer services like intelligent monitoring in an indoor environment using network connection with remote users. In this paper, we designed and developed a networked security robot system with various sensors, such as flame detector, gas detector, sound monitoring module, and temperature sensor, etc. The robot can be accessed through a web service and the user can check the status of the environment. Using ADAMS software, we defined the motor specification for a worst-case condition of climbing over a obstacle. We applied the robot system in monitoring office condition.
박근영,정동휘,전상훈,Park, Geunyeong,Jung, Donghwi,Jun, Sanghoon 한국수자원학회 2021 한국수자원학회논문집 Vol.54 No.10
This work introduces a new approach that classifies individual household water usage by examining the characteristics of smart meter end-user demand data. Here, one of the most well-known unsupervised machine learning, K-means algorithm, is applied to classify water consumptions by each household. The intensity and duration of end-user demands are used as main features to determine the households with similar water consumption pattern. The results showed that 21 households are classified into 13 clusters with each cluster having one, two, three, or five houses. The reasoning why multiple households are classified into the same cluster is described in this paper with respect to the collected data and end-user water consumption behavior.
영화관람 행위에 있어 옴니보어(Omnivore) 존재 여부에 대한 실증적 고찰
박근영(Keun-Young Park) 한국문화사회학회 2014 문화와 사회 Vol.16 No.-
피터슨과 그 동료들에 의해 제기되었던 문화적 옴니보어(Omnivore)란 특정사회의 상류층에 해당하는 사람들이 전통적으로 그들의 계층에 속하는 엘리트 문화예술 장르뿐만 아니라 하층 장르에까지 폭 넓은 선호를 가지고 있음을 의미한다. 하지만 최근의 옴니보어 연구는 지나치게 선호의 문제에만 집중하거나, 피터슨이 사용했던 원래 의미의 옴니보어를 편의에 따라 임의적으로 변형해서 사용하는 양상을 보이고 있다. 본 연구는 2000년대 한국 영화관객들의 소비 형태에서 문화적 옴니보어의 속성이 나타나고 있는지에 주목한다. 단순히 장르에 대한 선호가 아니라 특정 장르의 영화를 실제로 관람했는지를 기준으로 본래 의미에 충실한 옴니보어가 우리나라 문화소비 영역에서도 나타났는지를 분석한다. 본 연구의 결과에 의하면 기존 연구에서 영화 장르 소비의 옴니보어를 추출하는데 중요한 역할을 했던 개인의 소득수준이나 교육수준 등의 변수는 영화의 적극소비층을 구분해 낼 때만 유용할 뿐, 적극소비층 내에서는 장르 소비에 별다른 영향력이 없는 것으로 나타났다. 또한 문화자본이 풍부한 사람들의 경우, 옴니보어 보다는 부르디외의 동형성 가설에 가까운 형태의 소비를 하고 있는 것으로 나타났다. 이러한 결과를 바탕으로 본 연구는 ‘선호’가 아닌 ‘실제 행동’을 기준으로 문화소비 현상을 평가할 경우 기존 연구와는 다른 결과가 나올 수 있는 가능성을 제기한다. The cultural omnivorousness, raised and argued by Peterson and his colleagues, indicates the phenomenon that people of the upper class like not only traditional elite culture and arts, but also diverse popular culture from the lower class. However, it is often found that recent studies about cultural omnivorousness excessively and one-sidedly focus on preference issues or in some cases, modify the original meaning of omnivorousness for convenience. This study centers on whether cultural omnivorousness exists in the Korean audiences’ moviegoing behaviors in the 2000s. It analyzes whether the original cultural omnivorousness has appeared in the area of cultural consumptions in Korea, not based on simple preferences toward individual movie genres, but based on strict criteria whether he or she actually watched a particular genre of movies. The results show that income level and education level, which have played an important role in extracting the cultural omnivorousness in previous studies, are still valid in identifying major movie consumers, but do not influence the patterns of movie genre consumptions. Also, those who have plenty of cultural capital tend to consume movie genres in such a way that Bourdieu’s homology thesis argued. Based on all these findings, this study suggests the possibilities that when actual behaviors, not simple preferences, are applied to the analysis of cultural consumption patterns, fundamentally different outcomes from previous studies may appear.