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홍정선,말라,김이호,이선하,김이형,Hong, Jung Sun,Maniquiz-Redillas, Marla C.,Kim, Ree Ho,Lee, Seon Ha,Kim, Lee-Hyung 응용생태공학회 2015 Ecology and resilient infrastructure Vol.2 No.4
서울시는 2014년 기존의 서울시 물순환 조례에 저영향개발 (low impact development, LID)을 포함하는 조례개정을 통해 빗물관리의 토대를 마련하였다. 새롭게 개정된 조례에서는 2050년까지 연 강수량의 약 630 mm를 저류 및 침투시킬 것을 계획하고 있으며, 침투, 저류 및 식생을 활용하는 빗물관리시스템을 도입하여 관리하고자 한다. 저영향개발기법은 개발사업에서 생태, 물순환, 환경 등의 목표를 달성하고자 할 때 적용할 수 있는 중요한 기법이다. 본 연구에서는 서울시에 적용한 침투형 빗물받이, 생태저류형 배수로 및 투수성 포장 등의 다양한 물순환 시설 (LID)의 효과를 평가하기 위하여 수행되었다. 모니터링 결과 다른 시설에 비하여 투수성 포장에서 강우유출 저감효과가 가장 높게 나타났으나, 공극막힘현상을 줄이기 위한 방안이 설계에 반영되어야 하는 것으로 나타났다. 비점오염물질 유출저감의 경우 자동차 운행정도에 의한 오염물질 축적이 큰 영향을 끼친 침투형 빗물받이, 물리 및 생물학적 기작의 영향을 받은 생태저류형 배수로에서 높게 분석되었다. 다양한 목적으로의 저영향개발 기법 적용은 물순환 효과뿐만 아니라 환경오염저감, 생태복원, 심미적 효과 등의 다양한 효과를 보이는 것으로 나타났다. In 2014, the city of Seoul revised the ordinance regarding water-cycle restoration in the Seoul Metropolitan areas by incorporating the 'Low Impact Development (LID)' policy. The new ordinance plan will utilize 630 mm or almost 45 to 50% of annual rainfall until 2050 by means of providing a rainwater management system consisting of infiltration, retention and vegetation. The LID is believed to be the key to achieving the target requirements, specifically in development projects. This research was performed to evaluate the stormwater runoff and pollutant reduction performance of three different LID facilities (water circulation facilities) including an infiltration inlet, bioretention swale, and permeable pavement constructed in Seoul City. Results show that among the water circulation facilities, the permeable pavement achieved the highest runoff reduction as it was able to entirely capture and infiltrate the runoff to the ground. However, in order to attain a long-term performance it is necessary to manage the accumulated sediment and trapped pollutants in the landscape areas through other water circulation techniques such as through soil erosion control. In terms of pollutant reduction capability, the infiltration inlet performed well since it was applied in highly polluted areas. The bioretention facility integrating the physico-chemical and biological mechanisms of soil, microorganisms and plants were able to also achieve a high runoff and pollutant reduction. The water circulation facilities provided not only benefits for water circulation but also various other benefits such as pollutant reduction, ecological restoration, and aesthetic functions.
중금속 이온과 질소-황을 포함하는 포단드와의 착물형성에 관한 연구
정징운,이선하,최규성,강동현 慶南大學校 附設 基礎科學硏究所 1997 硏究論文集 Vol.10 No.-
The stability constant, enthalpy, and etropy changes of complexation of heavy metal ions (Zn²*, Cd²*) with podands containing nitrogen-sulfur donors such as tri(phenylthio-2-ethyl)amine (Podand Ⅰ), tri(benzylmercapto-2-ethyl)amine(Podand Ⅱ), and tetra(phenylthio-2-ethyl)ethylenediamine (Podand Ⅲ) have been determined by using potentiometric titration in 95% MeOH at various temperature. We observed the Podand Ⅲ ligand showed the largest protonation constant. The values of protonation constant and stability constant for Zn(Ⅱ), and Cd(Ⅱ) ions among three different ligands were increased as following order, Podand Ⅰ< Podand Ⅱ< Podand Ⅲ. In addition, thermodynamic parameters ΔH and TΔS of Zn(Ⅱ), Cd(Ⅱ) complexes have studied.
폴리에스테르계 메디아를 이용한 염색폐수처리에 관한 연구
김선덕,이선하,김재현 大邱大學校附設 基礎科學硏究所 1997 基礎科學硏究 Vol.14 No.1
Dyeing wastewater, BOD 1,742mg/ 2 , CODMr, 517mg/ 2 was treated polyester-media process, BOD removal efficiency was 55% in 30% of packing ratio. In case of activated sludge process BOD removal efficiencies were 82%, 87% and 90% in the hydraulic retention time of 17hr, 24hr and 35hr, respectively, in case of polyester-media process were 96%, 97.5% and 98.3%, respectively. In case of activated sludge process COD,,,, removal efficiencies were 25.7%, 49.2% and 51.8% in the hydraulic retention time of 17hr, 24hr and 35hr, respectively, in case of polyester-media process were 62.5%, 72.9% and 77.1%, respectively. T-N removal efficiencies in case of hydraulic retention time of 35hr were 80% and 87.9% in activated sludge process and polyester-media process, respectively. Color removal efficiencies in case of hydraulic retention time of 35hr were 44.9% and 68.8% in activated sludge process and polyester-media process, respectively.
초등학교 교사의 홈프로젝트법 교수-학습 방법에 대한 인식 : 실과 재배영역을 중심으로
이선하,김형균,조용만,신윤호 韓國實科敎育硏究學會 2000 實科敎育硏究 Vol.6 No.1
The primary purpose of this study was to identify perceptions of elementary school teachers in Korea regarding the home project of plant cultivation, to identify the problems of the program management and to propose recommendations for better practical art education program management. The results were derived to most of the teachers perceived the home project program is needed in practical arts education, but real experimental home project was quite lower allocated in education. And also learners have had big loaded in keeping record of cultivation book. The program, and the students' process of performance represented at lower and the degree of content represented at difficult. One of the main recommendations was to be needed more realistic and more future oriented offerings and managing the plant cultivation and teaching-learning approach in practical art education.