• 제목/요약/키워드: Gyeonggi

검색결과 5,363건 처리시간 0.038초

단순회귀모형을 이용한 인구와 도시적 토지이용이 팔당호 수질에 미치는 영향 분석 (Analysis for the Effect of Population and Urban Land use on the Water Quality in Paldang Lake Using Simple Regression Model)

  • 김상단;송미영;이기영;이성룡
    • 한국물환경학회지
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    • 제20권6호
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    • pp.703-707
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    • 2004
  • In this study, a simple regression model is proposed in order to analyse the effect of population and urban land use on the water quality of Paldang lake, Gyeonggi. As a comparison result with Qua12E water quality model, the proposed model shows very good predicting performance in simulating several alternative scenarios. In order to accomplish BOD 1ppm of Paldang lake, various model applications show that the population incoming and urban land use management should be afoot in addition to stricter outflow water quality from sewer treatmement systems.

경기도권 철도체계의 문제점과 개선방안 - 노선축, 영업, 급행화를 중심으로 (Improving Methods of Metropolitan Railways in Gyeonggi-do - Focusing on Route, Operation and Express Service)

  • 한우진;박정수
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2006년도 추계학술대회 논문집
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    • pp.968-973
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    • 2006
  • Although Gyeonggi-do is the core area which has a quarter of the population of Korea, it has poor railway network and then it have got serious traffic problem. So in this paper, it is introduced the improving methods of railways on Gyeonggi-do. In first, it was showed a fast and effective railway route implementation according to the characteristics with the similar population but the 17 times bigger area than that of Seoul. And it was explained multipurpose using method of the railways of Gyeonggi-do whit subway, commuter, express and high speed train etc. Finally unlike Seoul subway focusing on approachability, it was proposed 'express train paradigm' focusing on implementing the high movability which railways of Gyeonggi-do must have. So with 'Bundang-line' metropolitan railway, the case study in applying to southern metropolitan area with those suggestion was showed.

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Insecticidal Activities of Plant Extracts against Tetranchus urticae

  • Lee, G.Y.;Han, Y.H.;Soh, H.S.;Lee, H.J.;Kim, S.K.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.275-278
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    • 2011
  • To find an alternative for synthetic pesticides, methanol extracts from 69 plant samples were tested for their insecticidal activity against two spotted mite (Tetranchus urticae Koch). Seven plant extracts including Angelica japonica showed over 80% insecticidal activity at 5000 mg/L. Extract of Prunus armeniaca seed showed high insecticidal activity at 3000 mg/L. As a naturally occurring pesticide, P. armeniaca could be useful as a new botanic insecticide.

Quality Characteristics of Livestock Faeces Composts Commercially Produced in Gyeonggi Province in 2008

  • Kang, C.S.;Roh, A.S.;Kim, S.K.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.186-189
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    • 2011
  • By surveying the 70 composting plants in Gyeonggi Province, the total commercial production of livestock faeces composts (LFCs) in 2008 was estimated to be about 480,000 Mg year-1 and they were manufactured mainly by using both mechanical mixer and bottom air blower. LFCs were composed mainly of chicken faeces 29.2%, pig+chicken faeces 23.1%, pig faeces 20.0%, livestock faeces+oil cake 12.3%, pig+chicken+cattle faeces 10.8% and pig+cattle faeces 4.6%. On the basis of the current official standard which was revised on March 2010, 11 composts out of surveyed 76 ones did not meet the LFCs quality standard (LQS) due to inadequate content of water (5), OM/N (1), NaCl (2) and Zn (3). The OM/N declined by adding chicken faeces and oil cake, while Ca content increased by the addition of chicken faeces and NaCl increased by adding cattle faeces.

경기도 산란계에서 Ornithobacterium rhinotracheale의 높은 항체 양성률 (High seroprevalence of Ornithobacterium rhinotracheale in layer chickens in Gyeonggi province, South Korea)

  • 정광
    • 한국동물위생학회지
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    • 제43권4호
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    • pp.257-259
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    • 2020
  • Ornithobacterium rhinotracheale (ORT) causes pneumonia, airsacculitis, and pleuritis in chickens and other avian species. Little is known about the seroprevalence of ORT in layer chickens in Gyeonggi province, South Korea. The purpose of this study was to determine the seroprevalence of ORT in layer chickens in Gyeonggi province, South Korea from May to September 2019. A total of 460 chickens in 28 flocks were tested for antibodies to ORT by using commercial enzyme-linked immunosorbent assay (ELISA) kit. The seroprevalence of ORT antibodies in the flocks was 100% (28/28) and the overall seroprevalence in individual chickens was 98.91% (455/460). This survey indicated the high seroprevalence of ORT in layer chickens in Gyeonggi province, South Korea. Therefore, measures should be executed to control ORT in layer chickens in this province.

지속가능한 어촌과 해양레저산업의 상생방향에 관한 연구 (A Study on the Coexistence Direction of Sustainable Fishing Village and Marine Leisure Industry)

  • 박진
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2021년도 추계학술대회
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    • pp.14-16
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    • 2021
  • 본 연구는 경기바다의 접근성, 마리나시설, 수산자원의 한계, 어촌의 초고령화 등의 상황을 근거로 하여 어촌과 해양레저의 상생을 위하여 연안공간에서 발생하는 갈등 원인을 파악하고 섬 활성화를 위하여 수도권과 인접한 경기바다 지역의 특색을 활용해 효율적인 연안공간 사용을 제시하는 것이 목적이다. ‥‥(중략)‥‥본 연구를 통해 해양레저 산업인프라 구축을 통한 청년 유입, 어촌과 해양레저활동을 연계한 체험활동 및 교육 등 지속적이고 자생적인 경기바다의 발전을 도모하고자 한다.

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주파수 응답 분석(FRA)을 이용한 전력용 변압기 고장예방 진단 (A fault prevention diagnostic of power transformer using Frequency Response Analysis)

  • 조윤행;임태영;김종선;김기일;안광원;임성주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2011년도 제42회 하계학술대회
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    • pp.463-464
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    • 2011
  • Currently, different kinds of diagnosis and inspection technologies are applied to prevent the internal mechanical transformation of transformers. For example, examination of internal Partial Discharge of transformer, analysis of transformer oil gas, and measurement Frequency Response Analyzer(FRA) are used to diagnose defect. Especially, diagnosis technique through Frequency Response Analyzer(FRA) has been used and developed from 1960, when it was first introduced, till now to become an important tool to examine presence of defect and to prove quality of machines for the most electric machine producers electric power company in the world. However, diagnosis through FRA is still in introduction level in Korea and the application method for FRA is not established yet. For that reason, study about the application of domestic electric installation according to the FRA is needed. It is expected that the study play an important part in the prevention of defect due to the internal transformation of transformer by introducing measurement theory, providing measurement method, and analyzing application cases.

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식물추출물 혼합물의 미국선녀벌레 방제효과 (Control Effect of Plant Extracts Mixture on Metcalfa pruinosa (say) (Hemiptera: Flatidae))

  • 이영수;이희아;이현주;최종윤;이상우;이영순
    • 한국응용곤충학회지
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    • 제58권4호
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    • pp.281-282
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    • 2019
  • 미국선녀벌레에 방제효과가 높은 3종 (데리스, 시트로넬라, 계피)의 식물추출물과 보조제 (잔탄검과 실리콘 계열 화합물)를 함유하는 조성물을 개발하였다. 이 조성물은 인삼 재배지에서 미국선녀벌레 방제효과가 90% 이상으로 높았다. 또한 다른 흡즙성 해충에도 살충률이 높아 PLS (positive list system) 전면 시행에 따른 대응방안으로 활용이 가능할 것으로 생각된다.

한국에서 Duponchelia fovealis Zeller의 발견보고 (The European Pepper Moth, Duponchelia fovealis Zeller (Lepidoptera: Crambidae) Discovered in Gyeonggi-do, Korea)

  • 이영수;박영미;이관석;이희아;민희옥;이현주
    • 한국응용곤충학회지
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    • 제57권1호
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    • pp.53-54
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    • 2018
  • 세계적으로 관상작물의 중요한 나방류 해충의 하나인 Duponchelia fovealis Zeller가 2015년과 2016년에 경기도에서 처음으로 발견되었다. 유충이 꽃기린(Euphorbia milii)의 줄기 속을 파고 들어가거나 게발선인장(Schlumbergera truncata)의 잎을 가해하는 피해가 확인되었다. 유충과 피해 확인 직후 합성농약을 살포하였고, 현재까지 추가적인 발견은 없었다.

지역 디지털 아카이브 구축: '경기도메모리' 사례 (Building Local Digital Archives: The Case of "Gyeonggi-do Memory")

  • 신정아
    • 한국기록관리학회지
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    • 제20권3호
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    • pp.161-166
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    • 2020
  • 경기도사이버도서관은 경기도 지역의 문화자원 기록을 광범위하게 수집, 디지털화하여 누구나 접근하여 활용할 수 있도록 지역 디지털 아카이브인 '경기도메모리'를 구축하여 운영하고 있다. 2014년부터 도서관의 디지털 정보서비스를 확장하면서 '경기도메모리'를 시작하였으며 도내 각종 문화기관들과 협력을 기반으로 자료를 수집하고 디지털 아카이브를 구축하였다. 경기도 안에서 생산하거나 경기도를 다루고 있는 기록을 보존하는 저장소이자, 연구자와 시민들과 함께 공유하는 플랫폼으로 자리매김하길 기대한다.