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트리아세틴이 셀룰로스아세테이트/폴리에틸렌글리콜 블렌드 필름의 물성에 미치는 영향
서영민,이해성,이성준,정상원,김현철,김은주,최진현,이세근,Seo, Young Min,Lee, Hae Sung,Lee, Sung Jun,Jung, Sang Won,Kim, Hyun-Chul,Kim, Eun Joo,Choi, Jin Hyun,Lee, Se Guen 한국섬유공학회 2013 한국섬유공학회지 Vol.50 No.3
Cellulose acetate (CA)/polyethylene glycol (PEG)/triacetin (TA) blend films with different composition ratios were prepared by solution casting method to evaluate the effect of TA on the secondary structure and mechanical properties CA/PEG blend films. The cast CA/PEG blend films were drawn under various zone-drawing conditions determined by rheometry. Maximum draw ratio, degree of orientation, crystallinity, surface morphology, and mechanical properties were studied at different TA concentrations. CA/PEG/TA films had higher drawability and degree of orientation than CA/PEG and CA/TA films. Also, the mechanical properties of CA/PEG/TA films were better owing to their ordered structure. TA acted as a compatibilizer to facilitate the extension of polymers in the direction of zone-drawing, when CA or CA/PEG blend films were drawn. This could be a potential solution to the problem of low tensile strength in melt-spun CA/PEG fibers.
지능(知能)에 관(關)한 동서의학적(東西醫學的) 고찰(考察)
서영민,김장현,Seo Young-Min,Kim Jang-Hyun 대한한방소아과학회 1999 대한한방소아과학회지 Vol.13 No.1
The purpose of this review is to determine oriental concept of intelligence and memory, and to minimize adverse effect during treatment of brain disease by western medicine. Intelligence is developed by interaction between genetic factor ane environmental factor in Western medicine, Wherease mental function is difined by 'Chilsin' or 'Ohsin', and brain which control intelligence and memory is define by part of heart in oriental medicine The conception that mind and body are sameone may show possibility of intelligence and memory enhancement, and it may be usefule to clinical application.
한의학술잡지(韓醫學術雜誌)를 중심으로 살펴본 근세 한방소아과(近世 韓方小兒科)의 학술적 경향(學術的 傾向) - 1910년(年)부터 1960년(年)까지 -
서영민,김장현,Seo, Young-Min,Kim, Jang-Hyun 대한한방소아과학회 2007 대한한방소아과학회지 Vol.21 No.2
Objectives Oriental pediatrics during the Late-Joseon dynasty had constantly developed positively, independently, originally, but had declined since Japanese invasion because the western medicine flowed into Korea and Japanese imperialism carried our the oriental medical obliterating policy. As a effort of the oriental medical group that coped with the policy of Japanese imperialism, there were publication of oriental medical academic journal and there were the most important data. Those were the bases of our study which was about the tendencies of oriental pediatrics in modern Korea. Methods We studied academic journals on oriental medicine in Knowledge of Oriental Medicine Web Service and selected 31 volumes of nine academic journals our of 80 volumes of twelve academic journals, which were about pediatrics. Results and Conclusions Research into these journals has derived the conclusion that the oriental pediatrics academic trends at the time were transformed into new state which were brought the interaction and were balanced with the merit of oriental-western medicine.
(${\ll}$급유방(及幼方)${\gg}$에 수록(收錄)된 의안(醫案)에 대한 연구(硏究)
서영민,하기태,김준기,김장현,Seo, Young-Min,Ha, Ki-Tae,Kim, June-Ki,Kim, Jang-Hyun 대한동의생리학회 2007 동의생리병리학회지 Vol.21 No.1
${\ll}$Gup Yu Bang${\gg}$ is the first korean book that specialized in pediatrics. It was written by Jo Jeong-jun in 1869 and contains 87 medical records. Medical records is one of the best way to develop one’s abilities of curing a disease without clinical practice and understanding medical condition of the time. These days we are fully aware of the importance of medical records, but there is no sufficient paper or study on medical records. On this study, we investigate 87 medical record of ${\ll}$Gup Yu Bang${\gg}$ by statistical methods. It was analyzed on the base of items such as age, sex, disease, method of medical treatment, treating prescription, modified medicinal substance, progress of disease. ${\ll}$Gup Yu Bang${\gg}$ contain 87 medical records and among of them, 84 records were Jo Jeong-jun own writings of clinical case. Systemic division of disease showed the highest in digestive disease and most frequent case was symptom of vomiting and diarrhea. The distribution of age was showed the highest in the age group under 5 years and the number of male case was more than female case. It showed that he considered observation of the patient's expression in diagnosis methods and have used 87 kinds of treating prescription and the external treatment, acupuncture, moxa. It showed that he quoted a lot of treating prescription from ${\ll}$Dong eui bo gam${\gg}$, ${\ll}$Yi-Hak-Yip-Mun${\gg}$ and ${\ll}$Xiao Er Yao Zheang Zhi Jue${\gg}$. The further study on medical records in traditional medical literatures, would reveal the developmental progress of Korean pediatrics and inform more actual proof on medical condition of the time.
서영민,김장현,최은영,Seo, Young-Min,Kim, Jang-Hyun,Choi, Eun-Young 대한한방소아과학회 2006 대한한방소아과학회지 Vol.20 No.2
Objective : The purpose of this study was to distribute children by Sasang constitution through voice analysis, and to investigate the difference of physical and physiological characteristics in constitutions. Material and Methods : The subjects were 380 children aged between 5 and 6 who had been attending kindergartens. In April 2006, children were examined to make a diagnosis of Sasangin by PSSC-2004. Their parents responded the questionnaire on the children's characterist as eating habit, digestion, defecation, urination and perspiration. Results : Sasang constitution composed of 55.0% Soeumin, 1.8% Soyangin and 43.2% were Taeumin, and there were no significant physical and physiological differences in those groups. Conclusion : In this study, we tried to figure out some physical and physiological characteristics differences in Sasang constitution by using PSSC-2004. Statistically, however, there were no remarkable differences and we needed more specific studies.
컴퓨터 과학 교육 : 미래 학습 대비 개인용 휴대 단말기 현황 및 기술 분석
서영민 ( Young Min Seo ),안정현 ( Jung Hyun An ),이영준 ( Young Jun Lee ) 한국컴퓨터교육학회 2009 한국컴퓨터교육학회 학술발표대회논문집 Vol.13 No.2
유비쿼터스 컴퓨팅 환경의 도래와 함께 이러한 환경은 교육 및 학습 환경에 새로운 가능성을 제시하고 있다. 이러한 변화의 시대에 학습도구로 주로 사용하게 될 휴대용 학습 단말기의 주요 기능과 기술 발달에 따른 단말기의 변화를 분석함으로써 미래 학습의 모습을 예측하고 대비하고자 한다. 먼저 미래 사회의 컴퓨팅 환경인 유비쿼터스, 클라우드 컴퓨팅 서비스 환경과 그 변화에 따른 휴대용 학습 단말기의 변화에 대하여 살펴보았다. 또한 시중에 시판되고 있는 태블릿 PC, UMPC, MID, 교육용 특화 PC의 현황과 휴대용 학습 단말기와 관련된 최신 기술들을 분석하였다.
가정오수로부터 분리된 소변에서 인의 효율적 회수를 위한MAP Struvite 결정화 연구
서영민 ( Young Min Seo ),이춘식 ( Chun Sik Lee ),서규태 ( Gyu Tae Seo ) 한국수처리학회 2014 한국수처리학회지 Vol.22 No.6
The purpose of this study is to investigate the potential of MAP(Magnesium Ammonium Phosphate) struvite recovery and phosphorus removal from the source separated urine in domestic wastewater system. Among various chemical compounds of magnesium MgCl2·6H2O delivered the highest phosphorus removal (97%) from the urine. From batch experiment various reaction parameters like pH, Mg/P molar ratio, and mixing speed were found to be 10, 1.4 and 150, respectively as optimum for MAP precipitation. A bench scale reactor under continuous operation provided phosphorus removal efficiency of 95-98.2% over the operation period. The average production rate of MAP struvite was 2.22 g/h in the reactor operation. Consequently this experimental study revealed that MAP struvite precipitation could be a potent technology for phosphorus recovery from source separated urine as a tool of DESAR(Decentralized sanitation and reuse) concept.
초등학교 정보교육과정 수립을 위한 CSTA K-12 컴퓨터 과학 기준안 분석
서영민(Young-Min Seo),이영준(Young-Jun Lee) 한국컴퓨터정보학회 2012 한국컴퓨터정보학회 학술발표논문집 Vol.20 No.1
본 논문에서는 초등학교 정보교육의 실태를 교육 과정적 측면에서 살펴보고, 국내 정보교육의 큰 문제점이라고 할 수 있는 교육 과정 부재의 문제를 극복하고자 CSTA K-12 기준안을 분석하여 정보교육의 체계성을 확보하고 더 나아가 정보교육과정을 수립을 위한 기초 연구를 진행하고자 하였다. 초등학교 정보교육의 근거가 될 수 있는 2007년, 2009년 개정 초등학교 교육과정, 2005년 초 중등학교 정보통신기술교육 운영지침의 정보 관련 부분을 분석하였다. 분석 결과 정보교육의 필요성을 강조하는 세계적 추세에도 불구하고 국가 수준의 교육과정은 시수 및 교사의 확보, 콘텐츠의 체계성 면에서 이러한 흐름을 반영하고 있지 못하다는 결론을 도출하였으며, 이의 극복 방안으로 컴퓨터 과학의 최근의 추세를 반영하고 있는 CSTA K-12 기준안을 통하여 국내의 정보교육 활동을 체계화하고 교육과정을 수립하기 위한 근거를 제시하고자 하였다.