${\alpha}$-Bromophenylacetamide의 가수분해 반응연구

김인규,윤용진,Kim In Kyu,Yoon Young Jin 대한화학회 1978 대한화학회지 Vol.22 No.5

${\alpha}$-Bromophenylacetamide를 황산중에서 가수분해시키면 대개의 경우 mandelic acid와 ${\alpha}$-bromophenylacetic acid의 혼합물이 얻어지고, 염산의 경우에는 ${\alpha}$-chlorophenylacetic acid만이 얻어졌다. 그러나 조건을 잘 조절하면 mandelic acid와 ${\alpha}$-chlorophenylacetic acid는 각각 86, 95 % 이상의 좋은 수율로 순수하게 생성되지만, ${\alpha}$-bromophenylacetic acid만을 순수하게 생성시키는 최적 조건은 찾지 못하였다. 즉 이들 조건에서 ${\alpha}$-탄소의 브롬이 각각 $OH^{\Theta}$ 와 $Cl^{\Theta}$로 쉽게 치환되었다. The hydrolysis of ${\alpha}$-bromophenylacetamide in the acidic media has been studied. The reactions in sulfuric acid and p-toluenesulfonic acid afforded mainly mandelic acid ; on the other hand, in hydrochloric acid ${\alpha}$-chlorophenylacetic acid was the main product. In either case, it was difficult to obtain ${\alpha}$-bromophenylacetic acid without concomittant formation of mandelic acid and ${\alpha}$-chlorophenylacetic acid respectively from the hydrolysis of ${\alpha}$-bromophenylacetamide. Mandelic acid and ${\alpha}$-chlorophenylacetic acid were obtained in good yields (86, 95 %) in sulfuric and hydrochloric acid respectively; the reactions are therefore potentially useful processes for obtaining them.

레크리에이션 댄스 지도자들의 교수법 전문화의 과정

김지영(Ji Young Kim),윤용진(Yong Jin Yoon) 한국스포츠교육학회 2012 한국스포츠교육학회지 Vol.19 No.2

이 연구는 레크리에이션댄스 지도자의 교수법 전문화 과정을 규명하기 위한 연구로 근거이론적인 접근을 통하여 도출한 개념의 범주화와 축코딩 패러다임 요소와 과정을 제시하였다. 그 결과, 첫째, 개방코딩을 실시한 결과, 총 165개의 개념어와 28개의 하위범주, 10개의 상위범주가 제시되었다. 둘째, 축코딩을 실시한 결과, 레크리에이션댄스 지도자의 교수방법 전문화 과정에 관한 6가지 패러다임이 구성되었다. 인과적 조건은 건강관련 활동에 대한 관심, 역동적인 교수활동의 매력, 외향적인 활동 성향의 가치로 제시되었으며 상황적 조건은 댄스문화에 대한 대중적 반향으로 도출되었다. 또한 중심현상은 전문적 교수방법의 획득에 대해 초점이맞추어 진다. 이에 대한 중재적 조건 은 교육내용의 지식체계 부재와 댄스 교수법의 복잡성과 모호성 등이 제시된다. 이에 대한 상호작용으로 교수지식의 상호 소통과 교육 자료의 공유 등이 상호작용의 전략으로 나타났다. 이와 같은 과정의 결과로 레크리에이션 지도 과정의 교육내용 노하우와 수준별 적용방식을 레크리에 이션 지도자들이 스스로 획득하게 되는 것으로 나타났다. 셋째, 선택코딩으로 레크리에이션댄스 지도자의 교수방법 전문화 과정에 관하여 이야기 윤곽을 실시하고, 이 과정에서 핵심범주를 발견하였다. 레크리에이션댄스 지도자들이 교육경험에서 교육적 내용의 개선 뿐 아니라 가르치는 방식과 설명력의 연계선상에서 교육과정과 적용, 교수법과 커뮤니케이션 방식 등 전반에 걸친 지도자 개인의 ``노하우(know-how)``로써 경험적 지식이 축적 되는 것으로 이해되었다. This study is for examining the teaching method specialization process of recreation dance educators and presented theoretical paradigm and categorization of concept deduced through grounded theory method. Accordingly, first, the result of conducting open coding presented in the total of 165 concept words, 28 sub-categories and 10 super-categories. Second, it examined the paradigm compositions on the teaching method specialization process of recreation dance educators through axial coding, and the result presented causal conditions, context, central phenomena, intervening conditions, and consequences, it was revealed that recreation educators end up obtaining on their own the educational content know-how and level-specific application method of recreation instruction process. Third, story line was implemented on the teaching method specialization process of recreation dance educator through selective coding during which core of the process was discovered. It was found that recreation dance educators not only experienced the improvement of educational content during the educational experience but also accumulated experiential knowledge as personal ``know-how`` of educators on the education process and application, teaching method and communication method along the line of the instruction method and explanatory power.

라인댄스의 교육 체계를 위한 지도자들의 PCK 탐구

김지영(Ji Young Kim),윤용진(Yong Jin Yoon) 한국사회체육학회 2012 한국사회체육학회지 Vol.0 No.48

The purpose of this study was to examine pedagogical content knowledge of educators for the educational system of line dance. In particular, it provided differentiated case results of pedagogical content knowledge of line dance by students educated. This research was conducted as a case study and research participants` FGI by groups and concept map were made up. As a result, the priority of pedagogical content knowledge of line dance by students educated and concept map revealed four types of structural relations. First, the concept map drawn up by group A teachers stressed curriculum which is teaching content and individualization-phased strategy. Second, for teachers in the field of university education of group B, pedagogical content knowledge and useful representation type explanations were emphasized. Third, group C was involved with teachers educating general adults and stressed individualization-phased strategy and interest arousing. Fourth, educators teaching senior citizens of group D stressed interest arousing and differentiation strategy. Compared to groups A and B thinking highly of curriculum of school education, in the lifelong education field of groups C and D, it was observed that they put emphasis on interest and differentiation strategy. It was found that for what is stressed by each group as differentiation strategy, group A valued modification of play and activity, group B provided modification of routine or movements, group C valued application of pop culture and cultural issues, and group D is providing interesting movements and linguistic explanations, proper titles and compliments. In addition, for useful representation and explanation methods of line dance, all the teachers proposed the same order method. It was observed that in order to solve explanatory complexity of the step sheet of line dance, the same explanatory method is adopted as step terms are explained in advance, and the next is proceeded in order of beats, music, and combination.

일부 한국 성인 남성의 생활습관 요인과 고혈압 유병 상태의 관련성

소위영 ( Wi Young So ),전태원 ( Tae Won Jun ),최대혁 ( Dai Hyuk Choi ),윤용진 ( Yong Jin Yoon ),김병민 ( Byung Min Kim ),서한교 ( Han Kyo Seo ),엄우섭 ( Woo Soeb Eom ),김경래 ( Kyeong Lae Kim ),박성태 ( Sung Tae Park ),장혁기 ( Hy 대한스포츠의학회 2009 대한스포츠의학회지 Vol.27 No.2

This study was to examine the relationship between lifestyle factors and hypertension in Korean men. The subjects were 1,938 men aged 20 to 79 yr who visited health promotion center for medical check during 2004-2008. The diagnosis of hypertension was defined by JNC7 report. The prevalence of hypertension was 23.3% in this study population. Multivariate logistic regression demonstrated that the odds ratio (95% CI) of hypertension across age groups were 2.40 (1.42-4.09) for forties, 3.64 (2.16-6.12) for fifties, 6.43 (3.80-10.88) for sixties, 5.80 (2.96-11.38) for seventies compared to the twenties. Also, compared with normal group, the odds ratio (95% CI) of hypertension in over-weight and obese groups were 2.94 (2.11-4.09) and 3.70 (2.70-5.07), respectively. The odds ratio (95% CI) of hypertension in those who were drinking one or two times per week and three times per week were 1.33 (1.03-1.72) and 2.33 (1.67-3.22), respectively, compared with non-drinker group. It is concluded that the significant risk factors of hypertension were age, BMI, and alcohol-drinking among Korean men. However, smoking, exercise, and diet were not related to the risk of hypertension.

완구소음 특성 및 소음도 표시방안 고찰

김소영(So-Young Kim),김용희(Yong Hee Kim),박지훈(Ji-Hoon Park),윤용진(Yong-Jin Yoon),정정호(Jeong-Ho Jeong),이호정(Ho-Jeong Lee) 한국소음진동공학회 2019 한국소음진동공학회 학술대회논문집 Vol.2019 No.10

베이비붐 세대 골프 참여자들의 참여동기, 여가몰입, 생활만족의 구조적 관계

최영수(Choi, Young-Soo),이민석(Lee, Min-Seok),윤용진(Yoon, Yong-Jin) 한국체육과학회 2023 한국체육과학회지 Vol.32 No.1

폐경기 여성의 심폐기능, 체력과 골밀도의 관계 분석

소위영 ( Wi Young So ),최대혁 ( Dai Hyuk Choi ),윤용진 ( Yong Jin Yoon ) 대한스포츠의학회 2009 대한스포츠의학회지 Vol.27 No.2

This study was to examine the relationship of cardiorespiratory function (CRF), fitness, and bone mineral density (BMD) in postmenopausal women. The subjects were 231 postmenopausal women, who had visited a health promotion center for a medical check-up including BMD, CRF, and fitness test in 2008. There was significant difference in age (F=5.681, p=0.004), height (F=3.844, p=0.023), and vital capacity (VC) (F=6.502, p=0.002) among normal, osteopenia and osteoporosis group. However, there was no significant difference in weight, body mass index, systolic blood pressure, diastolic blood pressure, resting heart rate, VO2max, sit up, grip strength, vertical jump, reaction time, balance, and sit and reach among normal, osteopenia and osteoporosis group. In addition, significant but low partial correlation was observed between VC and BMD (r=0.195, p=0.003), and multiple regression analysis showed that only VC was variable having 7.2% of R2 (p=0.010). In conclusion, there were no relationship between fitness levels including CRF and BMD among postmenopausal women.

UTAUT 모델을 적용한 생활체육 참여 액티브 시니어의 스포츠 웨어러블 디바이스 수용의도 분석

안선영(Ahn, Seon-Young),윤용진(Yoon, Yong-Jin) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.1

The purpose of this study is to find out the Sports Wearable Devices Behavioral Intention of Active Senior Participating in Sports through UTAUT Model. The questionnaire was used as a measuring tool to require the research purpose. Total of 299 data were collected in Korea. The Data were analyzed to verify the hypothesis by using the convenience extraction method. To process data, SPSS and AMOS programs were used. The data were analyzed through frequency analysis, positive factor analysis, reliability analysis, correlation analysis, and structural equation model analysis. The results of the study are as followed: First, Performance Expectancy has been shown to have statistically significant positive effects on Behavioral Intention. Second, Effort Expectancy has been shown to have statistically significant positive effects on Behavioral Intention. Third, Social Expectancy has been shown to have statistically significant positive effects on Behavioral Intention. Fourth, Behavioral Intention has been shown to have statistically significant positive effects on Use Behavior. Fifth, Facilitating Conditions has been shown to have statistically significant positive effects on Use Behavior.

코로나19(COVID-19)시대 베이비붐 세대의 사회적 고립 문제 해결방안: 팀 동일시와 사회적 고립감의 관계에서 시청몰입의 매개효과

임건우 ( Geon-Woo Lim ),윤용진 ( Young-Jin Yoon ) 한국스포츠심리학회 2021 한국스포츠심리학회지 Vol.32 No.3

목적: 베이비붐 세대의 팀 동일시, 시청몰입, 사회적 고립감 간의 구조적 관계를 규명함으로 코로나19(COVID-19) 시대에 베이비붐 세대가 겪고 있는 사회적 고립감 문제를 해결할 수 있는 구체적 방향을 제시하고, 향후 또 다른 고립의 상황에 대비할 수 있도록 돕는 것에 본 연구의 목적이 있다. 방법: 본 연구의 목적을 달성하기 위해, 수도권에 거주하는 302명의 베이비붐 세대 스포츠 팬을 대상으로 연구를 진행하였다. 빈도분석, 확인적 요인분석, 신뢰도 분석, 상관관계 분석을 실시하였으며, 가설을 검증하기 위해 경로분석이 진행되었다. 또한 매개효과 검증을 위해 부트스트랩 방법이 활용되었다. 결과: 그 결과, 첫째, 팀 동일시가 시청몰입에 긍정적 영향을 미쳤다. 둘째, 시청몰입은 사회적 고립감에 부정적 영향을 미쳤다. 셋째, 팀 동일시는 사회적 고립감에 부정적 영향을 미쳤다. 넷째, 시청몰입은 팀 동일시와 사회적 고립감의 관계에서 부분 매개하는 것으로 나타났다. 결론: 이와 같은 결과는 현재 베이비붐 세대가 사회적 거리두기로 겪고 있는 사회적 고립감 문제를 대면하지 않고도 해결할 수 있도록 돕고 있으며, 더불어 향후 또 다른 고립의 상황에 대비할 수 있는 자료를 제공하고 있다. Purpose: The purpose of this study was to verify the structural relationship among team identification, viewing flow, social isolation. This is to solve the isolation problem faced by the baby boom generation due to the COVID-19 pandemic and provide specific directions to prepare for another quarantine situation in the future. Methods: To achieve this purpose of study, the survey was conducted on 302 baby boom generation-sport fans living in Seoul metropolitan area in South Korea. A total of 302 questionnaires were analyzed using frequency, confirmatory, reliability, correlation analysis. In addition, a path analysis was conducted to test hypothesis through structure equation modeling and a bootstrap approach was used to verify the mediation effect. Result: First, team identification had a positive effect on viewing flow. Second, viewing flow had a negative effect on social isolation. Third, team identification had a negative effect on social isolation. Fourth, viewing flow partially mediated the relationship between team identification and social isolation. Conclusion: The results suggest a way to solve the social isolation problem of the baby boom generation in the COVID-19 pandemic without facing each other and provide data to prepare for another situation of isolation in the future.

Importance-performance analysis for developing effective marketing of golf operations

Kyung-Chul Lee(이경철),Young-Jin Yoon(윤용진) 한국체육과학회 2004 한국체육과학회지 Vol.13 No.2

The focus of this study was to determine the applicability of Importance-Performance (I-P) analysis in evaluating golf operations. An ancillary purpose was to determine the I-P scale's appropropriateness as a marketing tool. Using the responses of 268 members of the Still Canyon and Will Spring Golf Club in California, four quandrant action grids for males and females were constructed using the mean scores of the importance ratings and performance ratings for each of the features or attributes under investigation. The results supported the use of the I-P scale and action grid as an instrument for (a) evaluating services, and (b) segmenting golfing operations based on demographic or behavorial factors.