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안삼영(Sam-Young Ahn),고계원(Kye-Won Ko),안성모(Sung-Mo Ahn),김승호(Seung-Ho Kim),박창욱(Chang-Wook Park) 한국항해항만학회 2008 한국항해항만학회 학술대회논문집 Vol.2008 No.추계
우리나라의 연안항만 중 특히 서해안의 경우 복잡한 해안선의 영향으로 항만 정온을 위한 별도의 외곽시설 없이 자연지형을 이용하여 항만시설을 계획 및 건설하는 사례가 있다. 이런 경우 안벽설계에 일반적인 무공케이슨을 적용하게 되면 평면계획에 따라 경사입사파에 의한 연파 및 월파가 발생할 수 있다. 이에 대한 대안으로 소파저감 기능을 더한 slit 케이슨을 적용하고 있으며 일반적으로 서해안과 같은 조위차가 큰 지역은 횡슬릿 보다는 종슬릿이 유리하다. 본 연구에서는 연파에 대한 소파저감효과를 극대화시킨 새로운 형식의 Slit 케이슨을 개발하고 월파방지를 위한 상치구조를 적용하여, 우리나라 서해안에 적합한 안벽단면을 제시하였으며, 수리모형실험을 통하며 그 효과 및 적용성에 대하여 검증하였다. In the location of inner bay, the harbour and port used to be designed and constructed without any outer structures as breakwater, shore bank, and so on. That time usually the incident wave was estimated enough small to apply the solid section, but if the incident wave was propagated diagonally to the quay wall the wave shold be grown to lager than design wave. So we developed new type slit caisson for dissipating wave energy, and research its effects and verify using the hydraulic model experiments.
초,중,고 과학교과서에 나타난 농업,농촌 다원적 기능 교육 내용 분석
김은자 ( Eun Ja Kim ),안삼영 ( Sam Young Ahn ),김영 ( Young Kim ),이상영 ( Sang Young Rhee ),이정원 ( Jeung Won Lee ) 한국농촌지도학회 2009 농촌지도와 개발 Vol.16 No.4
The objective of this study is to promote alternative plans on the prejudiced and distorted contents in school textbooks in the aspect of multi-functionality of agriculture and rural community. This was done through analysis of contents in 47 kinds of textbooks in science (8 of elementary school, 27 of middle school and 12 of high school). This will lead to promote understanding about the multi-functionality and form the proper value system related to agriculture and rural community for children and juveniles using textbooks. A content analysis was employed to examine to what extent the contents on agriculture and rural community were reflected in the textbooks for elementary school, middle school and high school. The content analysis was done in three categories, including presentation form, application method and function view. The followings are results of contents analysis in textbooks. The most frequently used presentation forms related to agriculture and rural community was figures and tables. In analysis of application methods, this research found that the contents related to agriculture and rural community were used to explain scientific facts and phenomena. In the function view, maintenance of local societies was most frequent among the various multi-functionalities in elementary and middle school, and food security in high school. Based on the results of content analysis, findings and recommendations in textbooks for elementary, middle and high school have been drawn, and several examples for contents development to be included in the textbooks were listed.
도암만 수질의 부유물질 농도와 화학적 산소요구량의 시,공간적 특성 및 상관관계
장지승 ( Ji Seong Chang ),장지혜 ( Ji Hye Chang ),조미선 ( Mi Sun Cho ),강형일 ( Hyung Yeel Kahng ),정재성 ( Jae Sung Jung ),안삼영 ( Sam Young Ahn ) 한국환경과학회 2014 한국환경과학회지 Vol.23 No.5
Seasonal and stational variation of SS and COD were investigated from February 2008 to December 2010 and the relationship between them was discussed. During three years monitoring, SS decreased significantly (46% decline) possibly due to the increase of precipitation and thereby resulting salinity drop. COD on average was the highest in 2009. SS was the highest in autumn and the lowest in winter, and over 72% of SS was FSS. While SS is high in the upper sampling stations of the bay with shallow water, COD values do not show any relationship to the geomorphological characteristics. CODins, which was defined as COD after filtration, ranged 56%(winter)~44.6%(summer) and showed no correlation with SS. It indicates that high SS concentration is not necessarily related to the high CODins. The seasonal CODins/SS data, which can be interpreted as COD density in SS, shows that SS in winter contains the dense COD materials compared to the other seasons.
Radical alkylation of Fe(CN)Cp(dppe)in CH_2CI_2
Ahn, Sam Young 순천대학교 기초과학연구소 1998 基礎科學硏究誌 Vol.9 No.-
Treatment of Fe(CN)Cp(dppe) with [PhN_2]BF_4 in CH_2Cl_2 results in the radical alkyation product, FeCp(dppe)(CNCHCl_2), 1. Electron withdrawing chlorines on α-carbon atom increase the π-acceptor ability of isocyande from metal to compensate the electron deficiency on isocyanide ligand. The electronic feature of 1 is compared with other FeCp(dppe)CNR derivatives and Cr(CO)_5CNCHCl_2 by means of ν(CN) in IR spectroscopy, ^13C NMR and x-ray crystallography.