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우정욱(Woo, Jung-Wook),최창열(Choi, Chang-Yeoul),김형기(Kim Hyung-Gi) 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.9
In 1997, 180 countries signed the Kyoto, Japan. The Kyoto Protocol came into force in February 2005. The agreement calls for industrialized nations to cut greenhouse gas emissios by 5 percent from 1990 levels by 2008 to 2012. So developed countries are presenting various policies to reduce greenhouse gas that is produced in transport firld. One of those polices is a modal shift that change from road freight to sea, inland waterway and railroad transportation that is eco-friendly. The increase of road freight brings road congestion, accidents, logistic costs, air pollution and greenhouse gases. Railroads are superior than the other modes of transportation in mass transportability, high speed, timeliness, safety and environmental-friendliness, but the railway industry has been pushed behind in competition. Korean railroads were used by passengers and freight transport popularly until the middle of 20th century, however, by the sudden change of logistics envrionments, ashaving time efficiency being most importang, railroad logistics competitive power against the transportation by truck The purpose of this study is to search how to improvement methods of rail freight by understanding the problems and the evasion reasons in coping with various case of logistics environment and to enhance competitiveness of rail freight.
345[㎸] 주변압기 3차측 영상전압 발생원인 분석 및 대책에 관한 연구
우정욱(Jung-Wook Woo),권동진(Dong-Jin Kweon) 한국조명·전기설비학회 2010 조명·전기설비학회논문지 Vol.24 No.9
We had experienced the several system failures which were concerned about zero sequence voltages at the tertiary side of 345[kV] transformers. In this paper, we had considered the zero sequence voltage and its reduction methods at the 345[kV] auto-transformer tertiary. For analysis, we used EMTP(Electro-Magnetic Transients Program). The calculation results by EMTP were compared with the measured data of the field tests. From the calculation and the field tests, we had verified that it is due to pre-saturation characteristics of the potential transformer. So, we had improved its saturation characteristics and applied it at real site. After improvements, we could reduce the zero sequence voltage below the setting level of the relay.
초등학교 체육교사의 리더십유형과 수업인지도 및 수업만족도에 관한 연구
우정욱(Jung Wook Woo),문선호(Sun Ho Mun) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.43
The purpose of this study is to analyze the relationships among elementary school physical education teacher`s leadership behavior, lesson awareness and satisfaction. A group of elementary school students who study in Busan participated in the survey and 396 vaild questionnaires were collected. To conclusions were verified using SPSS 12.0 through the multiple regression analysis and were drawn as follows. First, servant leadership and charisma leadership appeared to have a significant effect on lesson awareness. Second, servant leadership and charisma leadership appeared to have a significant effect on lesson satisfaction. Third, lesson awareness appeared to have a significant effect on lesson satisfaction.
라인댄스 프로그램 참여 여성노인들이 지각하는 다차원적 지지와 고독감 및 행복감의 관계
우정욱 ( Woo Jung-wook ) 한국체육학회 2020 한국체육학회지 Vol.59 No.2
본 연구는 라인댄스 참여 여성들의 행복감을 증진시키기 위한 방안을 모색하기 위하여 다차원적 지지와 고독감이 행복감에 미치는 영향을 살펴보았다. 이에 본 연구에서는 라인댄스 참여 여성노인들 159명의 설문자료를 바탕으로 다차원적 지지와 고독감이 행복감에 미치는 영향을 검증하였다. 분석방법은 탐색적 요인분석과 확인적 요인분석, 상관관계분석, 경로 분석을 수행하였다. 또한 통계프로그램은 SPSS 21.0과 AMOS 21.0 프로그램을 이용하였다. 이에 대한 결과를 요약, 제시하면 다음과 같다. 첫째, 라인댄스 참여 여성노인이 지각하는 다차원적 지지가 고독감에 미치는 영향을 살펴보았다. 그 결과, 다차원적 지지의 하위요인인 가족지지는 친밀감에 유의한 영향을 미치지 못하였으나, 소외감에 부적 영향을 미쳤고, 교사지지는 소외감에는 부적 영향을, 친밀감에는 정적 영향을 미친 것으로 나타났다. 둘째, 라인댄스 참여 여성노인이 지각하는 다차원적 지지가 행복감에 미치는 영향을 살펴보았다. 그 결과, 다차원적지지의 하위요인인 가족지지와 교사지지는 행복감의 하위요인인 긍정정서와 부정정서 모두에 유의한 영향을 미치지 못한 것으로 나타났다. 셋째, 라인댄스 참여 여성노인이 지각하는 고독감이 행복감에 미치는 영향을 살펴보았다. 그 결과, 소외감은 긍정정서에 부적 영향을, 부정정서에는 정적 영향을 미쳤으며, 친밀감은 긍정정서에 정적 영향을, 부정정서에는 부적 영향을 미친 것으로 나타났다. This study examined the effects of multidimensional support and loneliness on the happiness to find ways to improve the happiness of women participating in line dance. Therefore, this study verified the effect of multidimensional support and loneliness on happiness based on the survey data of 159 elderly women participating in line dance. For the analysis method, exploratory factor analysis, confirmatory factor analysis, correlation analysis, and path analysis were used, and statistical programs used SPSS 21.0 and AMOS 21.0 programs. The results are summarized and presented as follows. First, we examined the effect of multidimensional support perceived by older women participating in line dance on loneliness. As a result, family support, a sub-factor of multidimensional support, did not have a significant effect on intimacy, but it had a negative effect on alienation, and teacher support had a negative effect on alienation and a positive effect on intimacy. Second, the effects of multi-dimensional support perceived by older women participating in line dance on happiness were examined. As a result, family support and teacher support, which are sub-factors of multidimensional support, did not have a significant effect on both positive and negative emotions. Third, we examined the effect of loneliness perceived by older women participating in line dance on happiness. As a result, the sense of alienation had a negative effect on the positive emotion and the negative effect on the negative emotion, and the intimacy had a negative effect on the positive emotion and the negative effect on the negative emotion.