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메가 스포츠 이벤트 유치가 지역사회 의식과 사회변화에 미치는 영향
남호성(Nam, Ho-Sung),이재형(Lee, Jae-Hyung) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.5
The purpose of this study was to analyze the effects of hosting mega sport events on perceived sense of community and social change in Korea. To accomplish such the purpose, this study selected citizens from Inchon(2014 Asian Games) and Deagu(2011 IAAF World Championships) as population and sampled a total of 556 citizens using convenience sampling method in both areas. Instruments of study were questionnaires which were identified to be valid and reliable, and data collected were analyzed through t-tests, and multiple regression analysis at the significance level of .05. Accordingly, following conclusions were derived from the study. First, significant differences existed in emotion, participation desire and evaluation sub factors in terms of pro and con variable. Also, significant differences appeared in political, economic, social and cultural change factors in terms of pro and con variable. Significant differences existed in emotion, participation desire and evaluation sub factors of perceived sense of community in terms of participation variable. Moreover, significant differences appeared in all sub factors of social change in terms of participation variable. Second, multiple regression analyses revealed that factors affecting political change were emotion, participation desire and perceived integration and those affecting economic change were emotion, participation desire and evaluation factors. Additionally, factors affecting social change were emotion, participation desire and perceived desire, whilst those affecting cultural change were all sub factors of social change in this study.
박병진(Byung Jin Park),남호성(Ho Sung Nam),김보현(Bo Hyun Kim),주종남(Chong Nam Chu) Korean Society for Precision Engineering 2006 한국정밀공학회지 Vol.23 No.4
In micro electrochemical machining (ECM), electrodes should be prevented from unfavorable oxide and passive layer formation on the machined surface or overall corrosion of the entire surface. Generally, metal electrodes corrode, passivate or dissolve in the electrochemical cell according to the electrode potential. Therefore, each electrode must maintain its stable potential. In this paper, the stable electrode potentials of tool and workpiece were determined using the potentiodynamic polarization test and verified experimentally considering machining stability and surface quality. Stable workpiece electrode potentials of two different passive materials of304 stainless steel and nickel were determined in the 0.1 M sulfuric acid. Experimental results show good machined surface and fast machining rate using the determined electrode potentials.