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박은석 ( Eun Seok Park ),정동진 ( Dong Jin Chung ),박홍수 ( Hong Soo Park ),함현식 ( Hyun Sik Hahm ) 한국유화학회 2003 한국응용과학기술학회지 Vol.20 No.2
N/A To prepare alkaline degreasing agents(SADAs), tetrasodium pyrophosphate(TSPP), Na_2CO_3, Tetronix T-701 (T-701), Na-dioctyl sulfosuccinate(303C), Demol C, and MJU-100A were blended. The prepared degreasing agents were tested with steel specimens and the results were as follows. The degreasing powers of SADA-6(Na_2C0_3 50g/TSPP 25g/T-701 10g/303C 15g/Demol C 12g/MJU-100A 8g/water 130g mixture) for press-rust preventing oil were 98% and 99% degreasing at 4wt%, 70℃ and 90℃, respectively; for quenching oil, the degreasing power of SADA-6 was 92% degreasing at 4wt% and 70℃. From these results, it was proved that the SADA-6 exhibits a good degreasing power. Foam heights measured immediately after foaming by Ross & Miles method and Ross & Clark method at 6wt% and 60℃ were 16mm and 40mm, respectively. SADA-6 was proved a good low foaming degreasing agent.
인터넷 자료 및 국내 연구에서 바라본 태권도 해외 취업 동향 및 견해
박은석(Park, Eun-Seok),유한나(Yu, Han-Na),김공(Kim, Kong) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.5
This study is an analysis of the trend and view on the taekwondo specialist’s overseas employment, based on internet material and native study. First of all, the internet article mostly deals with the news of instructor’s employment, as for taekwondo specialist’s overseas employment. Concretely, the contents are mostly the education for taekwondo leader foster, the way to help taekwondo specialist employed and dispatched overseas, and ‘the contents of mutual cooperation concerning instructor dispatch’. The article not concerning the instructor doesn’t appear on internet. So, the opinion is suggested that information has to be supplied and that employment procedure has to be known about the overseas jobs except instructors. As for the inquiry and counseling related to taekwondo specialist’s overseas employment written on internet blog, mostly the contents were related to taekwondo specialist’s overseas employment. They wanted to be employed as instructors as well as to immigrate abroad. It was a limitation that the specialists couldn’t but be employed as an instructor, though they wanted to immigrate abroad. That is, the field and scope concerning taekwondo specialist’s overseas employment has to be expanded as soon as possible. In our country, the study about the persons majoring in taekwondo is not executed so many. As for the study trend, the studies were progressed, concerning the ability, behavior and anxiety of the persons majoring in taekwondo due to employment and concerning the education program for overseas employment improvement. The study was not enough, concerning the kinds, success case, employment procedure, and development strategy. The study applied actually was not so many. A for the trend, based on the contents described on internet material native study, first, the kind was not presented at all, concerning taekwondo specialist’s overseas employment field, second, the field and scope were only the instructor, concerning taekwondo specialist’s overseas employment. Third, the actual material was not so many, concerning taekwondo specialist’s overseas employment and information supply. Last, the views described as follows in order to improve taekwondo specialist’s overseas employment. First, it is necessary to expand and apply employment field of native takwondo. second, the other kind has to be searched, except taekwondo employment which links employment centering physical education. Third, the propelling and fruits of the study to be publicized on-line and off-line, related to trusted subjects and policy subjects about employment field expansion, application, and efficiency of employment in native taekwondo field. Fourth, on the basis of native case, overseas employment strategy and method have to be found. Fifth, in the level of Kukkiwon or the Korea Taekwondo Association, taekwondo specialist’s overseas employment has to be propelled with active concernment.
태권도 수련 프로그램이 초등학생들의 학생건강체력 및 작업기억력에 미치는 영향
박은석(Eun-Seok Park),김관호(Kwan-Ho Kim) 세계태권도문화학회 2022 세계태권도문화학회지 Vol.13 No.4
This study assigned the Taekwondo training program to 30 elementary school students in 4th to 6th grades and 15 control groups, and conducted it three times a week for 60 minutes for 12 weeks to investigate the effect on student health and working memory. First, muscle strength did not change in the change in student health physical strength before and after participating in the Taekwondo training program, and muscle endurance, quickness, flexibility, and cardiopulmonary endurance showed statistically significant changes (p<.001). Second, in the change in working memory before and after participating in the Taekwondo training program, there were statistically significant changes in number memorization, number connection, and arithmetic (p<.001). From the results of this study, it was found that the Taekwondo training program was effective in changing the student health physical strength of elementary school students, which also affected the improvement of working memory and thus was effective in improving learning ability.
한국 말산업 실태조사(2013-2017) 분석에 따른 향후 과제 탐색
박은석(Park, Eun-Seok),김공(Kim, Kong) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.5
This paper aimed at helping the activation of horse industry, one top promising industry of domestic industries. So, this paper, on the basis of the horse industry progressed from 2013 to 2017, analyzed the details, classifying with years, performed a comparative analysis among the years, grasped the current status of horse industry on the basis of the results, and presented the subjects on the basis of the future developmental possibility. First, this paper analyzed the actual condition investigation of horse industry, classified with the years, and also analyzed the real condition investigation comparatively among the years generally. The results were presented as follows. First, the investigation items were somewhat finite. Second, the investigation was limited to an elementary level and couldn’t be but so concrete. Third, the numerical value change, classified with years, was not so conspicuous. So, the meaning and utility were possibly finite. So, this paper presented the future subject in order to activate the fields of horse industry as follows. First, in the educational and experiential viewpoint, the lesson programs, related to horses, have to be offered by linking with educational facilities. The education & culture center has to be built to help experience education about horses. More facilities, educational and experiential, have to be built (museums, zoos, parks, etc.) in relation with horses. Second, in the viewpoint of publication and event, it is necessary to hold horse industry expo, to hold job fairs related to horse industry, to hold horse industry local festival, to construct broadcast channels specialized in horse industry and media organizations, and to plan and hold performances related to horseback martial arts and horses. Third, in the viewpoint of academy, it is necessary to establish researches related to horse industry, to hold an academic conference related to horse industry, to interact in academic fields such as seminars and forums, and to expand research services such as entrustments and policy subjects related to horse industry. Fourth, as for ‘sports’, it is necessary for sports-for-all items related to the horse to be developed and distributed variously, for sports events related to the horse to be activated, for the placement of race course to be expanded in national level. In addition, we have to make all possible efforts to popularize the participation in horse racing.
대학운동부 학부모들이 지각하는 지도자 이미지와 지도자 신뢰, 지도자 만족, 관계품질 개선에 관한 실증연구
박은석(Eun-Seok Park),유한나(Han-Na Yu) 한국발육발달학회 2018 한국발육발달학회지 Vol.26 No.4
This paper analyzed the relationship among leadership image, leader trust, leader satisfaction, and related quality recognized by the parents of university sports team and attained the conclusion as follows. First, the factors including qualification and speciality as leader image had a significant effect on perception trust and behavior trust as leader trust, and the factor of attitude including leader image had a significant effect on behavior trust as leader trust. Second, the factors including attitude, qualification, and speciality as leader image had a significant effect on leader satisfaction as leader satisfaction. Third, the factors including qualification and speciality as leader image had a significant effect on relationship satisfaction and relationship trust as relationship quality, and the factors including attitude and speciality as leader image had a significant effect on relationship absorption as relationship quality.
Mo-Bi-V-Al복합 산화물 촉매의 제조와 메탄 부분산화에 의한 메탄올 합성반응에 응용
박은석 ( Eun Seok Park ),신기석 ( Ki Seok Shin ),안성환 ( Sung Hwan Ahn ),함현식 ( Hyun Sik Hahm ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.1
본 연구는 메탄 부분산화에 의한 메탄올 직접 합성을 위한 촉매 개발을 목표로 수행되었다. 이를 위하여 Mo-Bi-V-Al 복합 산화물 촉매를 제조하였으며, 제조 방법에 따른 촉매 물성을 비교하고, 제조한 촉매를 이용하여 메탄올 합성반응을 수행하여 그 결과를 검토하여 보았다. 졸-겔법으로 제조한 촉매가 공침법으로 제조한 촉매보다 비표면적이 훨씬 컸다. 입자가 작고 표면적이 클수록 부분산화반응보다는 완전산화반응이나 메탄올 산화반응이 더 잘 진행되어 메탄올의 선택도는 낮아지고 이산화탄소의 선택도는 증가하였다. 졸-겔법으로 제조한 촉매가 공침법으로 제조한 촉매보다 약 20 ℃ 정도 더 낮은 온도에서 더 높은 메탄올 선택도(13%)를 보였다. 두 방법으로 제조한 촉매의 XRD 분석 결과 두 촉매의 결정 구조가 서로 달랐다. 본 반응에서 압력이 증가할수록 완전산화 반응이 억제되고 부분산화 반응이 일어나서 메탄올의 선택도는 증가하였고 이산화탄소의 선택도는 감소하였다.