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초등학교 태권도 수련생의 사회적 친밀성이 학교생활적응에 미치는 영향
박해원,손원일 대한무도학회 2022 대한무도학회지 Vol.24 No.4
이 연구는 초등학교 태권도 수련생의 사회적 친밀성이 학교생활적응에 미치는 영향을 검증하는데연구의 목적이 있다. 초등학교 태권도 수련생을 연구대상으로 선정하였으며, 사회적 친밀성과 학교생활적응을 측정할 수 있는 척도를 본 연구에 맞게 수정하여 설문조사를 실시하고 자료를 수집하였다. 수집된 자료는 탐색적 요인분석과 크론바흐 알파 계수를 이용하여 적합도와 신뢰도를 검증하였다. SPSS 26.0 프로그램을 이용하여 사회적 친밀성이 학교생활적응에 미치는 영향을 검증하였다. 통계분석은 상관관계분석과 회귀분석을 실시하였으며, 모든 통계적 유의수준은 .05로 설정하였다. 연구 결과첫째, 사회적 친밀성은 학교생활적응과 통계적으로 유의한 상관이 있는 것으로 나타났다. 둘째, 사회적 친밀성은 학교생활적응에 통계적으로 유의한 영향을 미치는 것으로 나타났다.
박해원,최종산 한국농식품정책학회 2023 농업경영정책연구 Vol.50 No.3
The primary objective of this study is to analyze the determinants associated with quality of life of married immigrant women residing in rural areas and to provide recommendations for future interventions to enhance their quality of life. An Ordered Probit analysis was conducted using data from the 2018 Nationwide Multicultural Family Survey. The results of the analysis revealed that several factors, including household income, proficiency in the Korean language, overall health, satisfaction with their spouse, social relationships, participation in community activities, duration of residence, economic activity, number of children, difficulties encountered when accessing institutional services, and experiences of social discrimination are all significantly correlated with their quality of life. Conversely, variables such as education level, the age difference between couples, participation in social services, and access to welfare facilities do not exhibit a statistically significant association with their quality of life. The study's findings suggest that the following interventions could be effective in improving their quality of life: assessing the effectiveness of existing social service programs and ensuring the convenience of access to welfare facilities; adapting social networks and language education in rural communities; conducting both quantitative and qualitative studies focused on rural multicultural communities. These interventions have potential to contribute to raising awareness of the importance of multiculturalism and the necessity of supporting immigrant communities.
박해원,김동혁,정진훈 한국도로학회 2018 한국도로학회논문집 Vol.20 No.4
PURPOSES : The purpose of this study is to analyze the magnitude of shoving of asphalt pavement by junction type between airport concrete and asphalt pavements, and to suggest a junction type to reduce shoving. METHODS : The actual pavement junction of a domestic airport, which is called airport “A”was modified by placing the bottom of the buried slab on the top surface of the subbase. A finite element model was developed that simulated three junction types: a standard section of junction proposed by the FAA (Federal Aviation Administration), an actual section of junction from airport “A”and a modified section of junction from airport“ A”. The vertical displacement of the asphalt surface caused by the horizontal displacement of the concrete pavement was investigated in the three types of junction. RESULTS: A vertical displacement of approximately 13 mm occurred for the FAA standard section under horizontal pushing of 100 mm, and a vertical displacement of approximately 55 mm occurred for the actual section of airport “A”under the same level of pushing. On the other hand, for the modified section from airport“ A”a vertical displacement of approximately 17 mm occurred under the same level of pushing, which is slightly larger than the vertical displacement of the FAA standard section. CONCLUSIONS: It was confirmed that shoving of the asphalt pavement at the junction could be reduced by placing the bottom of the buried slab on the top surface of the subbase. It was also determined that the junction type suggested in this study was more advantageous than the FAA standard section because it resists faulting by the buried slab that is connected to the concrete pavement. Faulting of the junctions caused by aircraft loading will be compared by performing finite element analysis in the following study.
전기식 포탑 구동시스템의 울트라 커패시터 적용 에너지 저장장치 내구성능 개선을 위한 방열설계
박해원,김현민,성수민,최우석 국방기술품질원 2022 국방품질연구논집 Vol.4 No.2
포탑 구동을 위한 구동전원 공급장치는 효율적인 공간활용을 위해 정격출력이하에서는 구동전원 공급장치(DC/DC 컨버터)에서 전력을 공급하고 급가속시 요구되는 순간적인 전력은 에너지저장장치로 전력을 공급한다. 전기식 포탑 구동시스템에서 울트라 커패시터를 에너지 저장장치로 사용하게 되면 안정된 출력전압유지 및 전력공급이 가능한 장점이 있지만 충방전 전류에 의해 발열이 발생하게 되고 내부 온도상승은 주요부품인 커패시터의 수명에 영향을 주어 에너지 저장장치의 내구성능을 저하시키게 된다. 본논문에서는 울트라 커패시터가 적용된 에너지 저장장치의 내구성능 개선을 위해 방열설계를 적용한 후 최대 부하 조건에서 에너지 저장장치의 열해석을 수행하여 적용된 방열설계의 효과를 검증한다.
박해원 한국식품유통학회 2023 食品流通硏究 Vol.40 No.4
The purpose of this study was to analyze chicken consumption behavior in COVID-19 and inflation era using fixed effect panel regression and negative binomial regression. Two kinds of data were used, viz. the agricultural food consumer panel data of the Rural Development Administration(RDA) and consumer price survey of Statistics Korea. The result of the analysis revealed that several factors including covid, first difference of CPI, bok-nal dummy, household income, adult child dummy, age dummy are significantly correlated with chicken purchases per month. And covid, first difference of CPI, bok-nal dummy, household income, age are significantly correlated with number of chicken purchases per month. Thus mitigation policies in a pandemic could lead to decreasing chicken consumption. chicken farm should be aware to changing environment due to post COVID-19. Also To promote chicken consumption, It is important that promotion need to consider seasonal demand and social statistics.