• Title/Summary/Keyword: 수변

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Evaluating the Trapping Efficiency of Vegetative Buffer Systems on Sediment Reduction Using SWAT model (SWAT 모델을 이용한 수변 완충지역에서 비점오염원 저감효율 평가)

  • Kim, Ik-Jae;Son, Kyong-Ho;Kim, Jeong-Kon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2007.05a
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    • pp.1819-1823
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    • 2007
  • 유역에서 상류 유역 또는 수변을 따라 자연 자원을 이용하여 조성되어야 할 완충지대는 비점오염의 영향을 줄이기 위한 중요한 최적 관리공법이다. 교란된 토지 피복과 수변 완충지대를 관리 및 복원할 때 같은 지형조건이라도 식생 종류, 발달정도, 토양조건에 따라 오염물 제거효과가 다를 수 있으며, 최소 완충지대 길이도 제거 오염물질 대상별로 적합하게 설계되고 해석되어야 한다. 본 연구의 목적은 용담댐 유역에서 SWAT 모델을 이용하여 식생 완충지대의 비점오염원 저감 모의 재현성을 평가하는 것이였다. 소유역의 관측값과 모델 예측값에 대한 모델의 검 보정이 선행되었으며 그 중에서 가장 높은 모델 효율을 가지는 소유역에서 three zone concept의 90m 수변완충지대를 지방하천을 경계로 하여 토지 피복도를 변화시켜 SWAT 모델에 적용하였다. 이 때 교목으로는 포플러 (Populus, 30m)을 적용하였고, 포플러의 높이 및 Leaf area index를 조정하여 관목 지대(30m)에 입력하였다. 잔디 지대(30m)는 자연초지를 선택하였다. 또한 지형변수(average slope)와 Manning's coefficient을 수변완충지대의 조건에 고려하여 변화를 주었고 이에 따른 유출량 및 유사량, T-N, T-P의 변화율을 조사하였다. 또한 5, 10, 30m의 식생 여과대를 밭 지역에만 적용하여 오염물의 저감 효율을 평가하였다. SWAT 모델은 각 소유역에서 발생된 전반적인 유출량과 수질변수의 추세를 잘 예측하였으며 정자천 소유역이 선택되었다. 모의된 완충지대에서는 연평균 940 m3/ha의 유출량이 감소되는 것으로 유사농도는 28.7 %의 저감효과를 보였다. 그러나 T-N, T-P의 농도는 오히려 증가되었는데 본 연구에서 고려된 보다 수변완충지대를 조성할 때 지하수 수위, 식생 성장변화 등과 같은 보다 정확한 설계 인자 산출 및 모델 DB 개발이 유역모델에 포함되어야 할 것으로 판단되었다.한 해결책을 얻어내는 상호보완적인 결과를 추구한다. 그가 디자인하는 작품은 전형적인 이미지를 내포하지 않는다. 즉 그의 작품은 기존의 가치와 이념적인 것은 배제하고, 창의적인 개념을 도출하였다.형모서리는 건물 특화 성격이 강하므로 불가피할 경우 소형 액센트 광고 위치를 미리 벽면으로 할애하는 것이 경관 및 입면계획에 유리한 것으로 분석되었다. 불확실도 해석모형 등의 새로운 기능을 추가하여 제시하였다. 모든 입출력자료는 프로젝트 단위별로 운영되어 data의 관리가 손쉽도록 하였으며 결과를 DB에 저장하여 다른 모형에서도 적용할 수 있도록 하였다. 그리고 HyGIS-HMS 및 HyGIS-RAS 모형에서 강우-유출-하도 수리해석-범람해석 등이 일괄되게 하나의 시스템 내에서 구현될 수 있도록 하였다. 따라서 HyGIS와 통합된 수리, 수문모형은 국내 하천 및 유역에 적합한 시스템으로서 향후 HydroInformatics 구현을 염두에 둔 특화된 국내 수자원 분야 소프트웨어의 개발에 기본 토대를 제공할 것으로 판단된다.았다. 또한 저자들의 임상병리학적 연구결과가 다른 문헌에서 보고된 소아 신증후군의 연구결과와 큰 차이를 보이지 않음을 알 수 있었다. 자극에 차이가 있지 않나 추측되며 이에 관한 추후 연구가 요망된다. 총대장통과시간의 단축은 결장 분절 모두에서 줄어들어 나타났으나 좌측결장 통과시간의 감소 및 이로 인한 이 부위의 통과시간 비율의 저하가 가장 주요하였다. 이러한 결과는 차가운 생수 섭취가 주로 결장 근위부를 자극하는 효과를 발휘하는 것이 아닌가 해석된다. 이와 같은 연구결과를 통해 생다시마를 주원료로 개발된 생다시마차와 생다시마 음료가 만성 기능성 변비 증세를 개선하는 효능이 잠재적으로 있음을 확인하였다. 그러나 생약제재의 변비약 수준으로 변비 개선 효능을 증대하기 위해서는 재료 배합비의 개선이나 대장 운동기능을 향상시키는 유효성분의 보강 등이 필요하다는 점도 알 수 있었다.더불어 산화물질 해독에 관

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Riparian Connectivity Assessment Using Species Distribution Model of Fish Assembly (어류군집의 종분포모형을 이용한 수변지역 연결성 평가)

  • Jeong, Seung Gyu;Lee, Dong Kun;Ryu, Ji Eun
    • Journal of Korean Society for Geospatial Information Science
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    • v.23 no.2
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    • pp.17-26
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    • 2015
  • River corridors facilitate dispersal and movement and prevent local extinction of species. As a result of stream restoration projects, which include installation of waterfront and flood control structures, the number of animals, which rely on river corridor, is decreasing. For the study, factors affecting fish assembly were extracted by a species distribution model with the fish data collected from the Seom River in Hoengseong County and City of Wonju, Ganwon Province, Korea between March to October 2013. The riparian connectivity was assessed using species richness and rarity. According to result of the field survey, there were 38 species and 7,061 individuals for fish. The analysis suggests the following. Firstly, factors affecting fish richness in species distribution model results are shown to be velocity, riffle, riparian width, and water width. The accuracy of the model proves to be suitable with the correlation coefficient of 0.83 and MAPE of 19.2%. Secondly, the low rarity area is shown to be straight streams in Jeon river near to Hongseong County and the high rarity area to be streams with large width, existing alluvial area at channel junction between Jeon river and Seom river. Thirdly, according to connectivity results, areas where weirs are installed or riparian buffer area is removed showed low connectivity. The areas where farmland near riparian and forest areas showed high connectivity. The results of this study can be utilized to improve current facilities and enhance connectivity as a restoration guide.

Comparison and Analysis of Domestic and Foreign Standard for safety environment installation of power station (수.변전설비의 안전 환경 설치에 관한 국내외 규정 비교 분석)

  • Bai, Seok-Myeong;Kim, H.S.;Bang, S.B.;Kim, K.H.;Lee, K.H.;Kim, J.M.
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2004.11a
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    • pp.267-273
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    • 2004
  • It's a general tendency that electrical facilities of power station become a large size and increase in number because electrical facilities become big and complicated with internal industrial development and economic growth. So, electrical accidents were increased in this electrical facilities of power station. Therefore, we studied on the safety environment in power station and compared of internal and external standards. So this paper gives information which is applied to install the electrical facilities and prevents measures against electrical accidents.

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A study on the Users' Awareness of Waterfront in Busan's Main 7 tourist area (부산의 대표적인 관광지 7개 지역에서의 수변공간의식 조사)

  • Yang, Dong-Cheon;Lee, Myung-Kwon;Kon, Masayuki;Ahn, Chang-Su
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.06a
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    • pp.5-6
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    • 2012
  • This study's leading tourist destination in Busan Haeundae, Gwangalli, APEC Naru Park, including seven regional surveys conducted by selecting a feel for the waterfront area was investigated. As a result, only 66% of Haeundae, "the sea" seem, a 77.6 percent Gwangalli a "sea looks", APEC Naru Park, 76 percent of the "sea looks", ${\cdots}{\cdots}$ (amout of) ${\cdots}{\cdots}$.

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A Study on the Users' Awareness of Waterfront in Busan Area - Focusing on Haeundae & Jagalchi - (부산지역 워터프런트 공간에 있어서 수변공간의식에 대한 연구 ~해운대와 자갈치를 대상으로~)

  • Kon, Masayuki;Lee, Myung-Kwon;Ahn, Chang-Su
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.11a
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    • pp.71-72
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    • 2011
  • Based on a survey for Haeundae and Jagalchi, representative waterfronts in Busan, this study examined the users' awareness of waterfront employing human's five senses. The results show that 81.5 %(163 respondents) of users in Haeundae responded "They feel sea breeze" whereas 55.8 %(111 respondents) of users in Jagalchi responded "They can eat seafood".

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A Study on Producing Digital Orthophoto Cadastral Map of Waterfront (항공사진에 의한 수변구역 수치정사영상지적도 제작에 관한 연구)

  • Kim Kam Lae;Hwang Bo Sang Won;Lim Gun Hyuk;Park Se Jin
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.22 no.4
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    • pp.349-357
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    • 2004
  • In order to manage the waterfront efficiently, we are to find the efficiency of producing method for digital orthophoto that presents natural form on lands and digital orthophoto cadastral map that presents the range of physical situation and property on lands in this study. Through this study, We can check that digital orthophoto cadastral maps for the boundary management of the waterfront are utilized widely at various field except the main purpose. Thus, we resolve the leading subjects that include the accuracy evaluation on produced maps and the bond edge of map sheet for the cadastral maps in order to drive activistic utilization and application.

Valuation of Han River Waterside Landscape with a Double-bound Dichotomous Choice Model and Policy Implications: Focused on the Exponential Willingness to Pay Model (이중양분선택법에 의한 한강 수변 경관의 가치 추정과 그 시사점 -지수지불의사 모형을 중심으로-)

  • Han, Taek-Whan;Hong, Yiseok;Park, Chang Sug
    • Environmental and Resource Economics Review
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    • v.22 no.1
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    • pp.179-214
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    • 2013
  • This paper estimated the value of waterside landscape and ecosystem of Han River basin with a double-bound dichotomous choice type of CVM. We used the exponential willingness to pay model to represent the nonnegative willingness to pay. This model is found to be especially important in analyzing a double-bound dichotomous choice model. The total willingness to pay was estimated as 705.5 billion won per annum. This suggests that current budget size for water quality and ecosystem conservation for Han River needs to be expanded.

A study on survey on the user's opinions of the water-front in Seoul Hangang Park Banpo area (서울 한강시민공원 반포지구에서의 수변공간의식 조사)

  • Yang, Dong-Cheon;Kon, Masayuki;Ahn, Chang-Su;Lee, Myung-Kwon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.10a
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    • pp.35-36
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    • 2012
  • This study had a survey on the user opinions of the water-front in seoul Hangang Park Banpo area. The survey was carried out individual interviews in the place where it can be directly overlooked the Han-river. And the results were analyzed in percentage terms. As a result, the highest rank in age structure is 33 percent of people in their twenties, and the following is 23.5 percent of thirties. ${\cdots}{\cdots}$(amount of)${\cdots}{\cdots}$.

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Landscape Design of Gyeong-In Ara Waterway (경인 아라뱃길 친수경관 기본설계)

  • An, Byung-Chul;Shin, Hyun-Don
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.2
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    • pp.119-129
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    • 2010
  • This study concerns the design strategy for the waterside of Gyeong-In Ara Waterway, Korea’s first constructed canal. This design focused on the creation of a new paradigm for waterway landscapes the major factors of which were geographical advantage, value of landscape and efficient approach. As the major space plan for the waterfront formed through the Gyeong-In Ara waterway from the Yellow Sea to the Han River, eight good views of the waterfront zone were designed by utilizing the waterway as a scenery viewpoint and, by constructing two traffic lanes for the scenic parkway connecting Incheon and the Gimpo terminal, both a linear greenway as well as various waterfront facilities were also designed. A boardwalk and bike path connecting the major theme parks were planned, and a waterfront pocket park was then organized based on the bike path. In this study, the result of the new waterfront result from the Gyeong-In Ara waterway was planned to have an identity as a new waterside culture space in order to achieve multiple functions including environmental, cultural, leisure, and tourism as well as management programs based on a variety of applied culture content and story-telling.

A Study on Waterfront Planning and Design from the Perspective of Resilience - Focusing on Resilient by Design Challenge and Sponge City (리질리언스 관점에서 수변 공간 계획에 관한 고찰 - 리질리언트 바이 디자인 공모전과 스펀지 시티 프로젝트를 바탕으로)

  • Jinhyun Jun
    • Journal of the Society of Disaster Information
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    • v.19 no.3
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    • pp.562-571
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    • 2023
  • Purpose: This study aims to provide a direction for restructuring resilient waterfront spaces, emphasizing the severity of water-related disasters and the significance of developing responsive urban strategies. Method: To achieve this objective, the study analyzes overseas planning and design cases based on the theoretical framework of urban resilience. The goal is to identify physical and social systemic design elements that can be applied to waterfront space planning and design of Korea. Result: The proposals from the Resilient by Design Callenge included strategies for enhancing social systems and promoting sustainability in a more systematic manner. Additionally, various physical design strategies and technologies were identified in the Sponge City projects, which aim to create a flexible urban waterfront space. Conclusion: When planning and designing Korean waterfront spaces to effectively respond to disasters, several elements should be considered, such as enhancing educational functions, expanding local resident participation, establishing a governance system, developing systematic sustainable plans, adopting ecological approaches, and implementing various low-impact development techniques.