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        • KCI등재후보

          대학생의 신체활동, 신체만족 및 자아존중감 간의 관계 분석

          이세형(Lee, Sei-Hyoung),강형숙(Kang, Hyoung-Sook) 제주대학교 교육과학연구소 2018 교육과학연구 Vol.20 No.2

          이 연구의 목적은 대학생의 신체활동, 신체만족 및 자아존중감의 관계를 분석하는데 있다. 연구대상은 J도 J시 소재 대학 중 체육관련 학과를 제외한 2개 대학에 재학 중인 학생들을 모집단으로 설정하여 편의표본추출법(convenient sampling method)을 사용하였다. 연구방법은 설문조사로써, 자기평가기입법(self-administered questionnaires)으로 총 600부의 설문을 실시하였다. 그 중 불성실한 자료를 제외 하였으며, 최종 510부를 분석하였다. 연구결과는 첫째, 여학생이 남학생이 비해 체중조절 경험 비율이 높은 것으로 나타났다. 둘째, 남학생이 여학생에 비해 신체활동(고강도, 중강도, 총 신체활동) 참여 비율이 높은 것으로 나타났다. 셋째, 남학생이 여학생에 비해 주관적 건강상태, 신체만족도, 신체활동량(고강도, 중강도, 총 신체활동, 총 대사당량)이 높은 것으로 나타났다. 넷째, 남학생과 여학생의 신체활동과 신체만족도 및 자아존중감은 정적 상관관계가 있는 것으로 나타났다. 다섯째, 남학생과 여학생의 총 신체활동과 자아존중감 간의 관계에서 신체만족도가 부분 매개효과를 가지는 것으로 나타났다. 본 연구결과를 통해 신체적, 심리적, 정신적 건강에 긍정적인 역할을 하는 신체활동의 중요성을 인식하고, 규칙적인 생활습관 형성, 질병예방 및 건강관리를 위해 신체활동 참여가 필수적임을 시사한다. The purpose of this study is to analyze the relationship between physical activity, body satisfaction and self-esteem of university students. The subjects of this study were students from two universities except for the physical education related departments of J city. The students were selected as the population and the convenient sampling method was used. We conducted a total of 600 questionnaires with self-administered questionnaires. Among them, the insufficient data were excluded and the final 510 copies were analyzed. The results of this study were as follows: First, female students had higher weight control experience rate than male students. Second, male students showed higher participation rate of physical activity (vigorous, moderate, total physical activity) than female students. Third, male students showed higher subjective health status, body satisfaction and physical activity (vigorous, moderate, total physical activity and total metabolic equivalent) than female students. Fourth, physical activity, body satisfaction and self-esteem of boys and girls were found to be statistically correlated. Fifth, body satisfaction showed a partial mediating effect on the relationship between total physical activity and self-esteem of boys and girls. This study is to recognize the importance of physical activities that play a positive role in physical, psychological and mental health and suggest that participation of physical activity is essential for regular lifestyle development, disease prevention and health management.

        • 고등학교 학교스포츠클럽 활동과 신체적 자기효능감 및 사회적 효능감의 관계

          이유주 ( Lee Yu-ju ),이세형 ( Lee Sei-hyoung ) 제주대학교 체육진흥센터(구 제주대학교 체육과학연구소) 2019 체육과학연구 Vol.25 No.-

          This study was designed to identify the relationship between participation in school sports clubs, physical and social efficiency, and the effectiveness of participation in school sports clubs. For this purpose, the data were collected using a self-representational questionnaire for 236 high school students based in Jeju Island regarding their sense of physical and social efficiency. The statistical analysis of the collected data was performed using SPSS ver.22.0. for reliability analysis, exploration factor analysis, independent T-test and one-way variance analysis, and the following key correlation analysis. First, the results of the Cronbach'a values for the reliability verification of the questionnaire showed that the physical self-efficiency r=916 and the social efficacy r=909 were high. Second, for verification of differences between measurement items, independent T-test and one-way distribution analysis showed that the difference between physical self-efficiency and physical self-efficiency was higher than Both the perceived physical ability and the confidence in physical self-expression were higher than the first and second graders. In the verification of differences in social efficiency by gender, male students showed higher social efficiency than female students, and the difference in social efficiency was higher in both grades. In terms of physical self-efficiency and social efficiency in terms of activity, participants were higher in all factors than women who were miserable. Third, the correlation between physical self-efficiency and social efficiency showed that the direction of the relationship appeared in the direction of emotion (+) and was influenced by it. As a result, high school students ' participation in the school sports club could be judged as a positive effect on the physical and social effects of the physical and emotional development of the students.

        • KCI등재

          가시광 레이저를 이용한 수광소자의 수동정렬 및 플립칩본딩

          유정희,이세형,이종진,임권섭,강현서,Yu, Chong-Hee,Lee, Sei-Hyoung,Lee, Jong-Jin,Lim, Kwon-Seob,Kang, Hyun-Seo 한국마이크로전자및패키징학회 2007 마이크로전자 및 패키징학회지 Vol.14 No.3

          광통신용 광모듈에서 광소자와 광섬유 또는 도파로를 정밀하게 정렬 및 접합하기 위하여 플립칩본딩 방법 이 널리 이용되고 있다. 이때 광소자를 정확한 위치에 정렬시키기 위하여 기판과 광소자 양쪽에 정렬용 마크를 제작하고 플립칩본더 등을 사용하여 정렬마크를 관찰하며 광소자를 정렬 및 본딩하게 된다. 본 연구에서는 이러한 정렬마크의 제작비용을 줄이고 광섬유와 수광소자(PD 칩)의 수동정렬을 용이하게 하기 위하여 He-Ne 레이저(파장 633nm)인 가시광을 이용한 정렬 및 플립칩본딩 방법을 연구하였다. 광섬유에서 방출되는 레이저 광을 육안으로 관찰하면서 수광소자를 정렬하므로써 패키징에 소요되는 시간과 경비를 절감하고 광모듈의 저가격화를 실현 할 수 있는 새로운 방법이다. 광섬유에 가공되어 있는 V-노치를 경유하여 가시광이 광섬유에 대해 직각방향으로 방출되고 이것을 수광소자와 정렬하는 방법이다. 본 연구결과 광정렬을 위해 입사된 633 nm파장의 가시광 레이저와 통신용 레이저인 1550 nm 파장사이의 파장 차이에 의한 광경로 차이는 약 4m으로 무시가능하고 최대 광세기 지점에서 ${\pm}20\;{\mu}m$ 범위내에서는 광결합효율 변화는 약 2%이었으며 최대 광결합효율은 약 23.3%이었다. In the optical module for optical communications, the flip chip bonding is used fer the precise alignment of the optical fiber and optical device. In flip chip bonding, the optical device is aligned and welded while observing the alignment mark of substrate and chip by using flip chip bonder in order to bond the optical device at the exact position. In this research, optical passive alignment method of photodiode(PD) flip chip bonding is suggested for low cost optical subassembly. By using the visible He-Ne laser (633nm wavelength), photodiode is easily aligned with emitting spot on the optical fiber with the help of stereoscopic alignment system. We compensated wavelength dependent deviation about 4m to find out real alignment position of 1550nm input laser by ray tracing. The maximum optical coupling efficiency between the optical fiber and photodiode was about 23.3%.

        • 제주도 수상레저 활동 사업장의 서비스 품질이 이용자 만족과 재방문 의도에 미치는 영향

          박부성 ( Park Bu-sung ),이세형 ( Lee Sei-hyoung ) 제주대학교 체육진흥센터(구 제주대학교 체육과학연구소) 2017 체육과학연구 Vol.23 No.-

          In this study, the service quality of Jeju water leisure establishment in term of provision of resources that contribute to improving the service quality of water leisure is examined. In addition, basic data is collected concerning revitalization of the water leisure business in the future; the aim is to achieve this through continued re-engagement to enhance user satisfaction by identifying the impact of user satisfaction and users revisit intentions. In order to achieve the research purpose, we selected a population that use the Jeju water leisure establishment, and 340 people responded to the questionnaire. Double responses and incomplete responses were excluded, then the remaining 305 responses were analyzed using SPSS version 18.0. To confirm the validity of the selection factors, the exploratory factor analysis used the principle component analysis of common factor analysis and the orthogonal rotation method by Blackberry mags was performed. Reliability analyses using the Cronbach`s £ coefficient were performed to verify the reliability among each factor based on internal consistency. The frequency analysis was performed for respondents` demographic characteristics with one-way ANOVA and Tukey`s post-validation were performed to discern significant differences between the groups. For hypothesis verification concerning the effect of service quality on user satisfaction and intention to revisit, the correlation analysis and regression analysis were performed. At this time, statistical significance was set at £=.05. The results of this study earned via such procedures and methods are as follow. First, there was no statistically significant difference due to the service quality following gender, user satisfaction and revisit intention depending on the service quality perception, user satisfaction and revisit intention in accordance with sociodemographic characteristics of respondents. The age-related service quality perception showed a statistically significant difference in human service and physical service, but was not observed for the significant difference for the service. The user satisfaction and revisit intention showed significant difference, and was observed to be highest in the group aged<20s. The service quality perception by average monthly income was statistically significant difference between human and physical service, systemically difference was not observed for the service. The user satisfaction and revisit intention was significant difference, and was observed to be highest in the group aged < 20s. Second, the service quality showed a statistically significant positive influence on user satisfaction. Third, the service quality showed a statistically significant positive influence on revisit intention. Fourth, the user satisfaction was found to have a significantly positive effect on revisit intention, and user satisfaction showed partial mediation on the service quality and revisit intention.

        • KCI등재

          신체활동 수준에 따른 중국 대학생의 주관적 건강상태, 자아존중감 및 자기효능감 비교 분석

          홍우빈(Hong, Yu-Bin),이세형(Lee, Sei-Hyoung) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.1

          The purpose of this study was to investigate perceived health status, self esteem and exercise self efficacy by physical activity level in Chinese university students who have various living environment, customs, religion. The subjects were selected students from 6 universities except for the physical education college for a month (September, 2017) in Jilin province, China, and convenient sampling method were used. Self administered questionnaires were used to conduct surveys. Among them, 1,084 copies were selected as valid samples except for the unfair data, and data were processed according to the research purpose. The results showed that the level of total physical activity and total metabolic equivalence of subjects were positive relationship with perceived health status, self esteem and exercise self efficacy. The group of high physical activity level showed higher subjective health status, self esteem, and exercise self efficacy than the low physical activity group and non physical activity group. As a result of this study, it is necessary to encourage family and friends to practice physical activity together with encouragement considering that positive physical and psychological state increases physical activity.

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