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초등학생의 창의성향과 성취동기 및 내·외재적동기와의 관계연구
류경훈 중앙대학교 한국교육문제연구소 2005 한국교육문제연구 Vol.- No.22
본 연구는 초등학생의 창의성향과 성취동기 및 내․외재적 동기와의 관계를 살펴보았다. 초등학생 250명을 대상으로 창의성 검사와 성취동기 검사를 실시하였으며, 또한 내․외재적 동기를 알아보기 위해 Amabile의 WPI(직업선호검사)를 사용하였다. 연구결과는 첫째, 창의성향과 성취동기 및 내·외재적 동기는 각각 상관이 있었다. 성취동기의 9가지 하위요인 중 2요인만을 제외하고는 다른 요인들은 모두 정적인 상관을 나타냈다. 둘째, 창의성향을 가장 잘 설명하는 성취동기의 하위요인은 시간지각, 동료선택, 모험행동의 순으로 설명력이 높게 나왔다. 학업성취와 관련 있는 성취동기는 창의성향에도 많은 영향을 미친다. 셋째, 내·외재적 동기에서는 내재적 동기가 설명력이 높았고 외재적 동기도 설명력이 유의미하게 나왔다. 내재적 동기의 중요성이 다시 한번 강조되었으며 무엇보다도 외재적 동기가 창의성향에 영향을 미친다는 결과가 교육에 새로운 시사점을 준다고 할 수 있다. It is predicted that the future society will be the creative society. Both motivation and the creativity are suggested as important factors to accomplish the individual.With 250 Primary school students as subjects, this study has examined the relation of motivation and creativity. Creativity Test from GIFT, Herman's Achievement Motivation Test and Amabile's WPI(Work Preference Inventory) Test have been administered.Results of this study shows that 1)creativity is significantly and positively related to achievement motivation and intrinsic/extrinsic motivation. 2)Stepwise regression analysis has been conducted to examine how much each variables of motivation add to the prediction of the creativity. Achievement motivation and intrinsic/extrinsic motivation have shown significant unique effect on totally creativity. These results suggest that the use of achievement motivation and intrinsic/extrinsic motivation are the most important predictors of creativity.The findings provide preliminary bases for understanding the motivation role in creative educational implications for teachers and suggestions for the future studies have been discussed.
위상 도플러 법을 이용한 직분식 가솔린엔진용 와류형 고압 인젝터의 분무 특성에 관한 연구
류경훈(K.H.Ryu),정지원(J.W.Jung),최동석(D.S.Choi),차건종(K.J.Cha),김덕줄(D.J.Kim),주영철(Y.C.Joo) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_1
Gasoline direct injection engines have been studied to improve engine efficiency and to reduce emission. Spray characteristics of an injector have an important effect on engine efficiency and emission. Thus the purpose of this study is to provide the fundamental data for injector design which is investigated on the spray characteristics of high pressure swirl injector for GDI engine. In this paper, PDA was utilized for the measurement of mean velocity of droplets. Measurement field was from 10mm below nozzle tip to 100mm in axial direction and 20mm in radial direction. The results are presented by the vector to illustrate the magnitude and direction of velocity at each position. The spray images were also utilized to make the measurement position<br/>
최동석,류경훈,차건종,김덕줄,Choi, Dong-Seok,Ryu, Kyung-Hoon,Cha, Keun-Jong,Kim, Duck-Jool 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.10
High-pressure swirl injectors have usually been employed in Gasoline direct injection engines due to their spray characteristics and the feasibility of their control. Thus the microscopic characteristics of high-pressure swirl spray were investigated by PDA. The correlation between axial and radial velocities and the correlation between droplet size and axial velocity were examined with different axial and radial positions. Two dimensional droplet velocity and its number distribution with size-classified droplets were illustrated. The mean droplet velocity and its SMD were also analyzed at the center of spray, the position having maximum mean axial velocity, and the spray periphery using time dividing method. Finally, the structure of high-pressure swirl spray was presented with the size distribution and velocity profile of droplets.
대학신입생의 부모관여, 대학생활적응 및 학업성취의 관계 분석
이경화(李慶和),유경훈(柳京薰),김은경(金垠慶) 서울대학교 교육연구소 2013 아시아교육연구 Vol.14 No.3
이 연구는 대학신입생들의 부모관여, 대학생활적응과 학업성취의 관계를 살펴보는 것을 목적으로 한다. 이를 위하여 선행연구들을 토대로 각 변인들 간의 관계에 관하여 연구모형을 설정하여 이를 검정하였다. 본 연구는 한국교육개발원의 한국교육종단조사 7차년도 대학생집단 데이터를 활용하였고, 국내의 4년제 대학생인 2,369(34.29%)명을 최종 분석대상으로 선정하였으며 성별구성은 여학생 1,180명(49.8%)과 남학생 1,189명(50.2%)으로 이루어졌다. 연구 결과 첫째, 부모관여는 대학생들의 소속감과 만족도와 정적 상관이 있었으나 학업성취와는 직접적인 상관이 없는 것으로 나타났다. 둘째, 연구모형의 적합도를 살펴본 결과, 부모관여가 소속감과 만족도, 대학적응을 매개로 학업성취를 간접적으로 설명해주는 연구모형이 타당한 모형임을 확인하였다. Parental involvement remains to be a prevalent phenomenon among college students. The purpose of this study was to investigate the casual relationship between parental involvement, college life adaptation and academic achievement in first year college students. This study utilized the KEDI’s longitudinal data collected on 4-year university students nationwide for 2012 to show whether or not parental involvement has impacts on sense of belonging in college, college life satisfaction, college adjustment and academic achievement. Structural Equation Modeling analysis was used to analyze 2,369 college students’ data. It was found that parental involvement was positively correlated with sense of belonging in college and college life satisfaction. Parental involvement was not directly associated with academic achievement. It was confirmed that parental involvement indirectly explained academic achievement through sense of belonging in college, college life satisfaction and college adjustment. Parental involvement was a positive predictor of sense of belonging in college and college life satisfaction. The three college life adaptation variables(sense of belonging in college, college life satisfaction and college adjustment) intermediated the predictive relationships of parental involvement and academic achievement. Future research directions and implications to parents and institutions were discussed.
김한재(Han-jae Kim),류경훈(Kyeong-hun Ryu),최동석(Dong-seok Choi),김덕줄(Duck-jool Kim) 한국자동차공학회 2000 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
Behaviors of GDI spray for flow and non-flow field were studied using LIEF and PDPA system. Injector has cone spray angle and spray has hollow cone structure. The exciplex system of fluorobenzene and DEMA in a non-fluorescing base fuel of hexane was employed. Droplet size and velocity were also measured by PDPA. From spray images ,sprays could be divided as two regions: cone and mixing region. Large droplets over 40㎛ were distributed outside spray main stream and many fine droplets were distributed inside the spray and vortex region. In engine spray has smaller penetration than chamber while dispersions were almost same at both cases. At mixing region, area ratios of high intensity region in engine were larger and increased rapidly after about 1.0ms after injection.<br/>