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이재장,노범식,장경호,정수현 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-
본 연구는 여러 가지 용도에 적합한 생석회를 생산하기 위하여 풍촌 석회석을 대상으로 소성시험을 하였다. 시료의 형상은 주로 정방형이나 때로는 구형을 나타내며, 배색 내지 회백색을 띈다. 소성시험에 사용한 시료의 크기는 45∼50㎜ 이며, 소화시험에서는 3.3mm(6mesh) 이하로 분쇄하여 소성하였다. 시료의 광물학적 특성을 보기위하여 편광현미경 관찰, X-ray 분석, 열분석을 하였다. 시료는 거의 순수한 CaCO₃이었으며, 600℃ 부터 열분해가 시작되어 850℃에서 완결되었다. 화학분석 결과 CaO 98.27%인 잠재적 순도를 갖는 생석회를 얻을 수 있음을 알 수 있다. 대략 50 ㎜ 정도의 석회석은 전기로의 온도가 실온에서 1,050℃에 도달하였을 때 99%이상이 소성되었다. 이 때 얻어진 생석회는 거의 순 백색이며 갈라짐이 없었다. 소화시험 결과 ASTM C-110에 의하면 반응성이 우수한 생석회인 것을 알 수 있으며, 1분 이내의 상승온도는 63℃ 이었다. In this study, the calcination characteristics of Pungchon limestone was investigated to produce the optimum quick lime for various uses. The shape of limestone sample was mainly cubic, but sometimes longish. Approximate size range for the calcination tests was from 45 to 50 mm. For the slaking test, it was crushed by cobbing method and screened by 3.3 mm(6 mesh) screen. Mineralogical studies of the sample were carried out to investigate textures, X-ray diffraction analysis and thermal analysis. The result of chemical analysis shows a very high grade limestone with a CaO potential of 98.27%. Approximate 50 mm size's of limestone, about 250 g was calcined more than 99% when the calcination temperature arrived at 1,050 ℃ from room temperature in the electric laboratory furnace. Lumpy lime in nearly white colour with nearly no cracks was observed during calcining test. and during calcination process the limestone places kept their shape. Slaking test(ASTM C-110 ) results indicate a high reactivity product. In slaking, a 63℃ temperature rise was achieved within the first one minutes.
이재장,최재석,노범식,문영배 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A
Lime is one of the world's most useful chemicals and manufactured in various types of kilns, using various fuels. Quicklimes vary in reactivity with water due to variations in the time and temperature calcining process and type of kiln used. Careful attention and control of time and temperature in the calcining process is necessary to insure a highly reactive lime. Excess time and temperature will cause the lime to be over burned. The highest reactivity of quicklime is obtained by calcination of limestone in the particle size of 0.1cm∼2cm, calcination temperature of 1000℃, calcination time 90min. It was found by the scanning electron microscopes that pores of quick lime is reducted if the soft burned quick lime is heated continually.
한윤범,이제호,최형준,손흥규,김성오,송제선,최병재 대한소아치과학회 2009 大韓小兒齒科學會誌 Vol.36 No.2
외상에 의한 치아의 함입은 치아가 치조골 방향으로 변위되어 있는 상태이다. 함입성 탈구는 다른 유형의 탈구성 손상에 비하여 드물게 발생하고, 낙상에 의한 경우가 많으며, 소녀보다는 소년에서 호발하는 것으로 보고되었다. 치아가 함입되었을 때, 치수괴사나 유착, 치근흡수, 근관폐쇄, 변연골 상실 등과 같은 합병증이 발생할 수 있으며, 치아 경조직과 치아 지지조직 등의 손상이 동반되는 경우가 흔하므로, 예후를 예측하고 정확한 진단 및 치료계획을 수립하는데 어려움이 있다. 함입된 치아의 치료는 자발적으로 재맹출하기를 기다리거나, 교정적 견인 또는 외과적으로 재위치 시키는 방법이 있다. 이 증례는 외상으로 인하여 상악 좌측 중절치가 함입되었다는 주소로 내원한 6세 7개월 된 여아에서, 함입된 치아의 자발적인 맹출을 기대하였으나 맹출이 되지 않아서, 교정적으로 견인하여 맹출시킨 경우로 양호한 결과를 얻었기에 이를 보고하는 바이다. Traumatic intrusion is a type of injury that involves axial displacement of a tooth toward the alveolar bone. Its occurance is relatively rare compared to other types of luxation in permanent dentition. It is more common in boys than in girls, and most common etiology of intrusion is fallen down. Various complication may occur following traumatic intrusion, such as pulp necrosis, root resorption, pulp obliteration and marginal bone loss. In addition, traumatic intrusion is commonly combined with hard or soft tissue injuries. Therefore, it is difficult to establish proper treatment plan. Choice of treatment for an intruded tooth by trauma include waiting for spontaneous re-eruption, orthodontic repositioning, and surgical repositioning. In this case, we repositioned the intruded central incisor using orthodontic traction, in a six-year old girl, which failed to re-erupt spontaneously.
이삼범,방재범,이영환 영남대학교 의과대학 2009 Yeungnam University Journal of Medicine Vol.26 No.1
결과적으로 영남대학교 의과대학에서는 3학년 학생을 대상으로 2008년도에 처음으로 해외임상실습을 시행하게 되어 2년간 새로운 경험을 하게 되었으며 외국의 병원까지도 교류의 기회를 넓히게 되었다. 향후에는 좀 더 영역을 넓히고 전 학생이 참가할 수 있는 프로그램을 개발하여 글로벌 의사양성이라는 교육목표를 완수하려는 지속적인 관심과 노력이 필요할 것으로 생각한다. Background : The aims of medical education have recently been changing in Korea, which has been accompanied by efforts to modify the rotating clerkship courses, improve the quality of clinical education, and make global doctors. We report the experiences of medical students going through an international elective clerkship for during past two years. Materials and Methods : Third year medical students could apply to the international elective clerkship course during a 4 week period after their third-year rotating clerkship at a university hospital. This was done twice - in 2008 and in 2009. Applicant students were allowed to select hospitals anywhere in the world. We analyzed their choices including data on nation, state or city, hospital or institute, contacted hospitals by medical college, differences of two years, etc. Results : Twelve students (10.9%) of a total of 75 third-year students applied to 3 nations and 4 hospitals in 2008. Nine students applied to the Tampa General Hospital at the University of South Florida (USF) in the USA, which was arranged by their medical college. In 2009, a total of five (4.2%) of 77 students applied to 2 nations and 3 hospitals, including three at the University of South Florida, one in another city in the USA, and one in another nation because of the increased financial burden due to a higher exchange rate. Conclusion : Medical students started their first international elective clerkship courses during the past two years. Experiences were interesting and meaningful to the students and the medical college. Greater effort and support to developing a new paradigm and to enlarge the scope of the program for making global doctors are required in the future.
근저항 트레이닝이 20대 여성의 신체조성과 체력에 미치는 영향
이상우,김봉환,서해근,강신범,나재철 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1
The purpose of this study was to investigate the effect of muscular resistance training on the body composition and the physical fitness. The subjects of study were 6 women in their twenties who had not taken will in ordinary days and had not gone through regular training. The above subjects were measured by body composition and physical fitness pre and post 8 weeks training. The frequence training was more than 4 times a week and the duration of training of each session was 70 miniutes. The results are as fallows: 1. In muscular resistance training for 8 weeks, % Fat 1.8%(7.76%), and Fat weigh 3.0kg(23.43%), wee decreased, while LBM 3.0kg(7.10%) was increased, However, there was no differences. 2. In muscular resistance training for 8 weeks, it was exposed to be increased a little in Left arm strength 2.65kg(9.60%), Fight arm strength 2.03kg(7.78%), Left leg extention strength 12.47kg(6.16%), Right leg extention strength 4.50kg(2.35%), Left leg flextion strength 13.67kg(13.01%), Right leg flextion strength 13.25kg(12.70%), Standing trunk flextion 3.25㎝(18.16%), Front split 2.67㎝(1.65%), Side step 3.83friq(11.16%), Vital capacity 5.02cc(0.22%).
男ㆍ女 中學生의 體格 GROUP別 發育樣相에 對한 縱斷的 硏究
이상우,신상근,안기영,강신범,나재철 東亞大學校附設스포츠科學硏究所 1996 스포츠科學硏究論文集 Vol.14 No.-
The purpose of this study was examine each group's growth type of the middle school syudents through three year's individual follow-measurement. Subject were 1110(male = 558, female = 552) who were living in Tea-gu. 1. In the whole means of each item the growth of rate of male for female in height and the sitting height was 2.9 and that of the weight and the girth of chest was 1.7. 2. The growth volume of the height, the sitting height was commonly anti-proportional in male and female. 3. The weight of male was revealed the similar growth between groups except 6,7 group. And that of female revealed the small decreasing phenomenon in 4 - 7 groups at 4,5 times. 4. The growth volume of the girth of chest was revealed highest in 2 group. Smallest in 6 group of male. And that was revealed the decreasing phenomenon in 6 group of female since 4 times.
Immunohistochemical detection of LOM strain viral antigens in suckling piglets in Jeju
Jae-Beum Kim(Jae-Beum Kim),Won-Gyu Cho(Won-Gyu Cho),Yun-Ho Kim(Yun-Ho Kim),Hyoung-Nam Jo(Hyoung-Nam Jo),Jae-Sung Heo(Jae-Sung Heo),Myeong-Won Suh(Myeong-Won Suh),Hyoung-Seok Yang(Hyoung-Seok Yang),Wan 한국예방수의학회 2019 한국예방수의학회 학술대회자료집 Vol.2018 No.-
Tissue distribution of LOM strain viral antigens using immunohistochemistry in weaned pigs in Jeju
Jae-Sung Heo(Jae-Sung Heo),Jae-Beum Kim(Jae-Beum Kim),Yun-Ho Kim(Yun-Ho Kim),Hyoung-Nam Jo(Hyoung-Nam Jo),Won-Gyu Cho(Won-Gyu Cho),Myeong-Won Suh(Myeong-Won Suh),Hyoung-Seok Yang(Hyoung-Seok Yang),Wan 한국예방수의학회 2019 한국예방수의학회 학술대회자료집 Vol.2018 No.-