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요가 프로그램 수강생들의 스포츠사회화 요인 및 사회적 지지의 관계
김사엽(Kim Sa-Yop),김덕임(Kim Deog-Im) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.1
This study inquires into the relationship between Yoga program trainees’ sports socialization factors and social support. The subjects of the study are those men and women who were participating in Yoga programs of Yoga institutes in the location of Gangwon-do Youngdong region 2008. Stratified Cluster Random Sampling was applied to take out samples. After collecting the response-completed data to the questionnaire, only trustworthyestimated data were encoded. After inputting encoded data individually into computer, standard multiple regression analysis was carried out through the statistics program SPSS 14.0 version for Windows in order to verify the relationship between Yoga program trainees’ sports socialization factors and social support (α=.05). The research method and findings above brought forth the following conclusion: Some relationship was found between Yoga program trainees’ sports socialization factors and social support.
가스 제트 모델을 이용한 DME 분무 해석의 격자 의존성 저감
오윤중 ( Yun Jung Oh ),김사엽 ( Sa Yop Kim ),이창식 ( Chang Sik Lee ),박성욱 ( Sung Wook Park ) 한국분무공학회 2010 한국액체미립화학회지 Vol.15 No.4
This paper describes the grid-size dependency of the conventional Eulerian-Lagrangian method to spray characteristics such as spray penetration and SMD in modeling DME sprays. In addition, the reduction of the grid-size dependency of the present Gas-jet model was investigated. The calculations were performed using the KIVA code and the calculated results were compared to those of experimental result. The results showed that the conventional Eulerian-Laglangian model predicts shorter spray penetration for large cell because of inaccurate calculation of momentum exchange between liquid and gas phase. However, it was shown that the gas-jet model reduced grid-size dependency to spray penetration by calculating relative velocity between liquid and ambient gas based on gas jet velocity.