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TSD 半剛接 接合部를 適用한 超大型 浮遊式 上部構造物의 2次 彈性解析
宋和澈,李恩淑 韓國海洋大學校 附設 海洋科學技術硏究所 2002 硏究論文集 Vol.11 No.1
In general, the semi-rigid connections are preferred for low rise structure, If semi-rigid connections are used for superstructures of very large floating structures(VLFS), the number of rigid connections can be reduced and more economical construction will be possible. In this study, considering service load and wave load in VLFS, the applicability of mixed use of rigid and semi-rigid connections has been studied using TSD connections for a four-bay eight-story frame. ABAQUS(Finite element analysis program) is used for conduction second order elastic analysis.
거대 점오염원이 주변 대기질에 미치는 영향에 관한 연구
김유근,이화운,전병일,장은숙,홍정혜,문윤섭,원경미,송정희 부산대학교 환경문제연구소 1996 環境硏究報 Vol.14 No.1
In order to show the effect of a vast point pollutant source on air quality of Pusan Thermoeletric Power Plant and its surrounding area, air quality around Pusan Thermoeletric Power Plant was simulated by ISCLT-2 which was supplied by EPA. For this purpose the emission amount of SO_2, NO_2 and TSP was calculated and atmospheric stability was classified for a recent decade(1985~1994) in Pusan. A result of the emission amount showed that much amount of NO_2, NO_2 and TSP are emitted from industrial area. It was clear that NO_2 is much emitted from line source and industrial area. And as a result of classification of atmospheric stability, neutral, stable and unstable state were 58%, 24.1% and 17.9%, respectivly. The result of ai quality simulation by ISCLT-2 showed that Pusan Thermoeletric Power Plant is affecting on the increse of 2.0ppb, 3.0ppb and 5.0㎍/㎥, SO_2, NO_2, and TSP respectively at its surrounding area, site A-3 which was located westward 2.2㎞ distance from Plant
수술적으로 치료한 통증을 동반한 흉추부의 후외상성 Schmorl씨 결절 : 2례 보고 Report of Two Cases
신병준,이재철,송화용,정석봉,권계원,조영일,김연일 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Study Design : Two patients who had painful Schmorl's node at thoracic level from acute trauma were adopted and taken operation for its treatment Objectives : To document the effect of operation for the treatment of painful Schmorl's node at thoracic level summary of background data : Schrmorl's nodes are common spinal lesion generally believed to be asymptomatic, but in some cases there were painful symptom by Schmorl's node. This case report is to explain the effect of operative treatment for the painful Schmorl's node. Methods : Two patients were adopted who had traumatic painful Schmorl's node at thoracic level for our case report. They were treated conservative methods at first but it's effect were poor, so they were taken anterior decompression and fusion, and checked back pain symptom. Result : In all two patients, the symptom of back pain by Schmorl's nodes at thoracic level was almost subsided. conclusion : For the treatment of traumatic painful Schmorl's node, most of surgeon says that conservative treatments were treatment of choice, but operative treatments are also benefit to subsidence of back pain by Schmorl's node.
원격화상협력학습이 한국, 호주 초등학생의 창의성에 미치는 효과
송윤숙(Song Yoon Suk),이경화(Lee Kyung hwa) 숭실대학교 영재교육연구소 2015 Global Creative Leader Vol.5 No.1
최근 창의적 융합인재 육성 및 국제화에 대한 사회적 요구가 높아짐에 따라 다양한 형태의 국제교류수업 및 창의성 함양 수업이 개발되었다. 이에 따라 본 연구에서는 창의성 증진에 초점을 둔 국내외 원격화상협력학습이 한국과 호주의 초등 저학년들의 창의성 향상에 어떤 효과가 있는 지를 실험연구를 통해 확인하였다. 창의성은 이경화(2014)의 K-ICT(초등학생용 통합 창의성)를 사용하여 창의적 능력과 창의적 성향을 측정하였으며, 실험 자료는 국내 원격화상협력학습에는 창의적 체험활동을 적용하였으며, 국외 원격화상교류학습에는 AKC 프로그램을 적용하였다. 연구결과, 국내 원격화상협력학습을 통해 초등학생의 창의성이 향상될 수 있음이 확인되었으며(p<.05), 국외 원격화상협력학습 또한 한국 초등학생의 창의성 향상에 효과적임이 확인되었다(p<.05). 이와 같은 결과를 통해 학교에서의 창의성 교육과 국제화를 위해서 국내, 국외의 학교들과 화상협력수업을 적극적으로 추진하는 것이 필요하다는 것을 시사할 수 있다. As the social demands of development of human resources with creative competency and globalization have increased, various types of 'Connecting Classrooms' and creativity improvement programs have been developed. Accordingly, this study found out what effects 'AKC (Australia-Korea Connection) as distance collaborative learning focused on fostering creativity can have on facilitation of creativity in early elementary grades in South Korea and Australia. The research used ‘Integrative Creative Test for Young Children (K-ICT)’ by Kyung Hwa Lee (2014) for measuring the creativity, which includes both creative ability and creative personality. For experimental data methods, creative experiential activities were used for domestic distance collaborative learning while AKC Program was focused for overseas Collaborative Multimedia Distance Learning System. The results of the study verified that creativity in elementary school students can be improved effectively by using Collaborative Multimedia Distance Learning System (p<.05). These results of the study suggest that it is necessary to implement Collaborative Multimedia Distance Learning System with domestic and overseas schools for better in-school creativity education programs and globalization.
대형유통업소주차장의 축적먼지 중 미량원소성분 분석과 오염원 평가
송희봉(Hee Bong Song),안정임(Jeong Eem Ahn),정연욱(Yeoun Wook Jung),윤호석(Ho Suk Yoon),금종록(Jong Lok Keum),도화석(Hwa Suk Kim),김선숙(Sun Suk Kim),김종우(Jong Woo Kim) 大韓環境工學會 2012 대한환경공학회지 Vol.34 No.3
2011년 3월에 대구광역시의 대형유통업소주차장을 대상으로 총 48개의 먼지시료를 채취하여 100 μm 이하로 걸러서 산추출한 후 ICP로 14개 원소를 분석하였다. 미량원소성분 중 Ca, Fe, K, Mg, Mn, Na, V는 자연적 발생원의 영향을, 그리고 Cd, Cr, Cu, Ni, Pb, Zn은 인위적 발생원의 영향을 받는 것으로 추정된다. 미량원소성분의 농도는 자연적 발생원 성분이 인위적 발생원 성분보다 뚜렷하게 높았고, 인위적 발생원 성분은 지상옥상이 지상실내와 지하실내보다 농도가 높았다. 미량원소성분의 조성백분율은 인위적 발생원 성분에 비해 자연적 발생원 성분이 대부분을 차지하였고, 인위적 발생원 성분은 지상옥상이 지상실내와 지하실내보다 함유율이 높았다. 주차장은 유해중금속오염이 거의 없는 수준을 보였고, 지상옥상은 지상실내와 지하실내보다 중금속오염도가 높았다. 미량원소성분간의 상관성은 지상옥상이 지상실내와 지하실내보다 양호한 상관성이 많았고, 인위적 발생원 성분은 주차장연수와 주차밀도와도 상관성이 양호하였다. A total of 48 dust samples were collected from large shopping mall parking lots in Daegu metropolitan city in March 2011. Samples were sieved through a 100 μm mesh and the concentration of 14 elements have been determined using by ICP after acid extraction. Results showed that Ca, Fe, K, Mg, Mn, Na and V were affected by natural sources while Cd, Cr, Cu, Ni, Pb and Zn were affected by anthropogenic sources. The measured values were remarkably higher in components from natural sources than in components from anthropogenic sources. Anthropogenic trace element concentrations of ground roof dust were higher than those of ground and underground indoor dust. A large percentage of trace elements came from natural sources rather than anthropogenic sources. The percentage composition of chemicals of ground roof dust were higher than those of ground and underground indoor dust. This study showed that investigated parking lots were rarely contaminated with hazardous heavy metals. The heavy metal pollution of ground roof were higher than those of ground and underground indoors. The correlation analysis among trace elements suggest that components in ground roof were more highly correlated than those in ground and underground indoor. Also anthropogenic trace element levels were well correlated with parking lot age and parking density.