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열충격 시험을 통한 MLCCs SAC305 무연 솔더 접합부의 IMCs 성장과 접합특성 저하에 관한 연구
정상원,강민수,전유재,김도석,신영의,Jung, Sang-Won,Kang, Min-Soo,Jeon, Yu-Jae,Kim, Do-Seok,Shin, Young-Eui 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.3
The bonding characteristics of MLCCs (multi layer ceramic capacitor, C1608) lead-free solder (SAC305) joints were evaluated through thermal shock test ($-40^{\circ}C{\sim}125^{\circ}C$, total 1,800 cycle). After the test, IMCs( intermetallic compounds) growth and cracks were verified, also shear strengths were measured for degradation of solder joints. In addition, The thermal stress distributions at solder joints were analyzed to compare the solder joints changes before and after according to thermal shock test by FEA (finite elements analysis). We considered the effects of IMCs growth at solder joints. As results, the bonding characteristics degradation was occurred according to initial crack, crack propagations and thermal stress concentration at solder-IMCs interface, when the IMCs grown to solder inside.
우리나라 학생들의 그림자 교육(shadow education)에서의 선행학습에 대한 질적 연구
정상원(Jung Sang Won),정정훈(Jung Jung Hoon) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.17
대다수의 한국 학생들은 사교육 영역에서 선행학습을 하고 있다. 이러한 선행학습은 학교에서의 학습을 질을 떨어뜨리는 요인으로 비판받고 있다. 이러한 비판은 심층적인 경험적 연구에 기초하지 않은 상황에서 제기되고 있다. 이에 이 연구는 질적연구방법을 통해 선행학습이라는 한국의 독특한 교육/학습 현상을 이해하고자 하였다. 연구 결과로서 이 연구는 사교육 기관에 따른 선행학습의 형태와 선행학습의 유형을 분석하였으며, 이러한 선행학습이 가지는 교육과정적 특징을 규명하였다. 나아가 선행학습이 학생들의 학습에 미치는 영향을 논의하였다. 이 연구는 사교육에서 이루어지는 선행학습의 실체를 보다 명료하게 밝힘으로써 한국 학생들의 학습과 그들의 학습문화를 이해하고 나아가 우리나라 교육 발전을 위한 시사점을 제공할 수 있을 것이다. Most Korean students participate in preview learning in shadow education space. Preview learning has been attributed to damaging the quality of students’ learning in school classes. Yet, such criticism is not grounded by in-depth understanding of the phenomenon and students’ experience in it. Thus, this study is to understand preview learning through qualitative research methods. As a result, this study sought to ascertain the forms of preview learning at different shadow education types and discusses the curricular characteristics of the forms of preview learning. Furthermore, this study discusses the effects of preview learning on individual students’ learning. Additionally, this study offers implications for educational development in South Korea and understanding students’ learning culture.
미래 여가( Leisure ) 산업의 경쟁력 강화를 위한 경영학적 고찰과 방안 모색
정상원(Sang Weon Jung),박인태(In Tae Park) 한국사회체육학회 1997 한국사회체육학회지 Vol.7 No.-
The purpose of this study is present advanced course for development device and activated device of future about the leisure business. Conclusions of this study are as follows. 1. The management organization and management action for leisure business must be systematized. 2. The leisure business through activated New sports must induce the consumer(people) of variable class. 3. The research institute for essential leisure business management must be established in university 4. The sightseeing business must be induced to field of the future leisure business. 5. The needs estimation and service of leisure consumer(people) must be offered through the media and information Net work for essential lesure business management. 6. The professional staff of instructer and manager function must be cultivated for the leisure business of future. 7. The leisure business organization must scheme of plan able to cope with establishment of marketing mix plan on the basis of frame plan about sightseeing income expenditure deficit of government.
지역 체육,스포츠시설 이용자의 서비스 기대 및 성과 탐색
정상원(Sang Won Jung) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.47
This study was designed to research the service expectation and outcome investigation of community sport facility user. In this study, questionnaire was used to investigate empirically the service expectation and outcome pattern of community sport facility user On the basis of the results analyzed in this study, the conclusion could be drawn as follows. 1. The service expectation and outcome pattern of the five factor showed to positive recognition level in each pattern difference analysis of the service expectation and outcome patter according to sport facility pattern(commercial, public, school). The recognition level of expectation pattern showed to recognition level more than outcome pattern level(p<.05,p<.01). 2. The all of five frequency pattern in each pattern difference analysis of the service expectation and outcome pattern expectation according to sport ficilityuse frequency showed to positive recognition level. The recognition level of expectation pattern showed to recognition level more than outcome pattern level(p<.05,p<.01). 3. The material(corporeal), trust, response, conviction, sympathy of service expectation according to sex showed to significant difference. The female recognition level showed to recognition level more than male in the five all factor(p<.01,p<.001). 4. The material factor of expectation pattern according to age showed to significant difference, The material, trust, response, conviction, sympathy of service outcome pattern according to age showed to unsignificant difference. 5. The material, conviction, sympathy of service expectation pattern according to study level showed to significant difference and the university level appeared to most highlevel(p<.05,p<.01). The outcome pattern according to study level showed to unsignificant difference. 6. The material, trust, conviction, response of service expectation pattern according to job pattern showed to significant difference and special job showed to the most high recognition level(p<.05,p<.01). 7. The service evaluation expectation pattern showed to high correlation with the service evalution outcome pattern (r=.488, .537, .586, .556, .538).
전신 반응기간( Whole Body Reaction Time )이 100m 달리기 운동 수행능력에 미치는 효과에 관한 연구
정상원(Sang Weon Jung) 한국사회체육학회 1997 한국사회체육학회지 Vol.7 No.-
The study was done in order to investigate correlationship between 100m running exercise performance ability and whole body reaction time. The subject of this research consisted of 30 K-University students(male: 15, female: 15). The subject was instructed to release his foot on the platform just after light stimula as quickly as possible. The results of the statistic analysis on this data were summarized as follows. 1. The correlationship between 100m running exercise performance ability and whole body reaction time showed significant (officient data(R: 0.93) in total student group. 2. The correlationship between 100m running exercise performance ability and whole body reaction time showed significant cofficient data(r=0.71 in male group, r=0.89 in female group) 3. The each of three group (total student group, male student group, female student group) examined to have consistent direction to regression curve model through regression equation. 4. The each of three group in this research examined to have significant correlation ship between light stimula and voice stimula. 5. The W.R.T record appeared to effect on 100m running exercise performance ability.
골프연습장 이용객(대학 및 사설)의 고객만족, 운동몰입, 운동만족도 비교 분석
정상원(Jung, Sang-Won) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.59
This study was designed to analysis consumer satisfaction, exercise immersion, exercise satisfaction of Indoor golf practice place users(university and private facility). In this study, questionnaire was used to compare consumer satisfaction, exercise immersion, exercise satisfaction of Indoor golf practice place users(university and private facility). The 365 subjects(man 201, female 164) were selected from indoor golf practice place (university and private facility). The 5% level of significance was used as the critical level for acception of the hypothesis in this study. On the basis of the results analyzed in this study, the conclusion could be drawn as follows. 1. The fare satisfaction of consumer satisfaction was significant difference according to sex, female appeared to higher than man. The exercise workout passion, exercise exploration, exercise self-esteem was significant difference according to sex, man appeared to higher than female. The interpersonal skill satisfaction was significant difference according to sex, man appeared to higher than female. 2. The Consumer Satisfaction, Exercise Immersion, Exercise Satisfaction not appeared significant difference according to age. 3. The exercise workout passion, exercise exploration,was significant difference according to sex, high education career appeared to higher than low education career. In the exercise self-esteem, interpersonal skill satisfaction, high education career appeared to higher than low education career. 4. The program satisfaction and leader satisfaction was significant difference according to job, personal self-working appeared to higher than service and sales job. In the exercise workout passon, the special job appeared to higher than the other job 5. The program satisfaction and leader satisfaction, fare satisfation was significant difference according to managing facility type, the university facility appeared to higher than the private facility. 6. The sub item of consumer satisfaction, exercise immersion, exercise satisfaction was significant correlation.