• Title/Summary/Keyword: GIS method

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Suitability Selection on Habitable Environments of Corbicula Japonica in the Songji Lagoon by GIS (GIS를 이용한 송지호 재첩서식의 적지선정)

  • Choi, You-Gil;Woo, Young-Bae;Uh, Je-Sun;Choi, Chul-Jae;Yoon, Hong-Joo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.9
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    • pp.965-972
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    • 2015
  • In this paper, we describe a method for the suitability selection on habitable environments of Corbicula Japonica in the Songji Lagoon. Acquired data by in-situ measurements analysed in applying GIS. In order to identify the characteristics of environment in Songji Lagoon, water temperature, salinity, Dissolved Oxygen, and PO4-P were used. This study is expected to use the basic data for Corbicula Japonica breeding in similar lagoon environments.

Correlation analysis between rotation parameters and attitude parameters in simulated satellite image

  • Yun, Young-Bo;Park, Jeong-Ho;Yoon, Geun-Won;Park, Jong-Hyun
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.553-558
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    • 2002
  • Physical sensor model in pushbroom satellite images can be made from sensor modeling by rotation parameters and attitude parameters on the satellite track. These parameters are determined by the information obtained from GPS, INS, or star tracker. Provided from satellite image, an auxiliary data error is connected directly with an error of rotation parameters and attitude parameters. This paper analyzed how obtaining satellite images influenced errors of rotation parameters and attitude parameters. furthermore, for detailed analysis, this paper generated simulated satellite image, which was changed variously by rotation parameters and attitude parameters of satellite sensor model. Simulated satellite image is generated by using high-resolution digital aerial image and DEM (Digital Elevation Model) data. Moreover, this paper determined correlation of rotation parameter and attitude parameters through error analysis of simulated satellite image that was generated by various rotation parameters and attitude parameters.

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A Development of Measuring Instrument of Portable Partial Discharge for Diagnosis of GIS Installation and Application (GIS 설비 진단을 위한 포터블 부분방전 측정장치 개발 및 응용)

  • Kim, Jong-Seo;Kim, Jin-Tea;Shin, Heung-Sik;Lee, Heung-Jea
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.58 no.2
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    • pp.231-234
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    • 2009
  • Recently, to the development of a highly information-oriented society to a large increase in dependence on power, Accordingly, it is need that active development and spread of preservation technology on accident prevention in operation electrical equipment. However, to lack of the use on maintenance technology of power equipment and to increase of power usage is growing deterioration of power equipment, this is a cause on casualties, property damage and the occurrence of disasters is a growing. GIS equipments which are operated from domestic except the equipment which manages from the big business are depend on a most visual inspection, and do inspection method or measuring instrument etc. a condition which is not supplied widely. Currently, many to measure instrument used in domestic is very expensive or foreign, it will be able to substitute this, the development necessity of the diagnosis technique and the measuring instrument is demanded.

Characteristics of Radiated Electromagntic Wave With Partial Discharge Progess in the GIS by UHF method (UHF법에 의한 GIS내 부분방전시 방사되는 방사전자파 특성)

  • Lee, H.C.;Park, K.S.;Yoon, D.H.;Lee, S.H.;Kim, K.C.;Lee, K.S.
    • Proceedings of the KIEE Conference
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    • 2003.10a
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    • pp.189-190
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    • 2003
  • 현장에서 많이 사용되고 있는 GIS에 결함이 발생하면 치명적인 사고로 진전될 수가 있다. 본 논문은 모의 GIS내 도전성 파티클 존재시 발생되는 부분방전 신호를 절연 진단 방법중 하나인 UHF법을 이용해 부분방전시 방사되는 방사전자파의 스펙트럼을 분석해 부분방전 진전과정을 판단하였다. 이러한 연구는 현장 GIS 및 $SF_6$ 가스절연 전력설비의 전기적 신뢰성 확보를 위해 UHF 법을 이용한 절연진단 시스템 개발에 중요한 역할을 할 것으로 사료된다.

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Frequency response of Sensors for GIS insulation-diagnosis (GIS 절연진달을 위한 센서 구조별 주파수 특성)

  • Choi, Eun-Hyeok;Kim, Jung-Bae;Kim, Gi-Chai;Lee, Kwang-Sik
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2007.05a
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    • pp.413-416
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    • 2007
  • If obstacle in GIS(Gas Insulted Switchgear), its affects are great are on the community and it is consequently demanded lots of difficulities to recover and repair. Accordingly, diagnosis techniques, that are able to prevent from accidents before they happen by providing more stable and highly reliable power effectively and finding sign of the accidents is very important. The strip-senser measured impedance bandwidth of the proposed antenna is from 0.5[GHz] to 2.5[GHz] with the stop band from 0.5[GHz] to 1.7[GHz] for VSWR<2. The antenna is will play an important role for the senser for insulation diagnosis system by UHF method of real site GIS and power equipment using $SF_6$ gas.

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A Study on Rural Planning Methodology(II) Using Spatial Analysis Method of GIS - (농촌지역 토지이용계획 기법 연구(II) -GIS의 공간분석기법 이용-)

  • 정하우;박병태
    • Journal of Korean Society of Rural Planning
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    • v.1 no.2
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    • pp.43-52
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    • 1995
  • This study is to establish a planning methodology for rural area development with land suitability classification. Land suitability classification was carried out by introducing Geographic Information System. The planning methodology was applied to Sunheung district located in Youngpoong county, Kyongbuk Province, Korea. Land suitability classification by the GIS showed that only 29 % of present agricultural land were higher than class 2 and 71 % were in bad condition for agricultural land. Especially, 22.2 % of agricultural land were under class 5 as the lowest level and 265.2 ha of forest were possible to develop as an agricultural land. It was proved that GIS may be a powerful tool in rural planning process. In addition, it is thought that GIS can be applied to the fields of agricultural land management system in many ways.

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A Local Association Rule Search Method from GML Data (GML데이터에서 지역적 연관규칙 탐색 기법)

  • Hong Sung-Han;Hwang Byung-Yeon
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2006.05a
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    • pp.37-42
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    • 2006
  • GIS분야에 대한 다양한 연구가 진행됨에 따라 그 활용에 대한 관심도 확대되고 있다. Open GIS Consortium에서는 GML(Geography Markup Language)을 개발하여 이를 GIS 응용분야에 활용하고자 하는 연구가 활발히 진행되고 있다. GML데이터에서 의미 있는 정보를 추출하기 위해서는 데이터 마이닝 기법 활용이 필수적이다 최근에 데이터마이닝 기법 중 연관규칙을 이용한 탐색 방법이 제안되었다. 그러나 이 방법은 전체 데이터를 대상으로 의미 있는 정보를 탐색 하므로, 데이터 내에 포함되어 있는 부분 속성인 지리 공간적 연관성을 탐색하는데 한계를 가지고 있다. 따라서 녈 연구에서는 GML데이터에서 부분적 속성을 고려한 지역적 연관규칙 탐색 기법을 제안한다.

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A study of an automatic goo-referencing method of a building's site plan CAD data using a parcel contour from attached cadastral maps (연속 지적도의 필지 경계선을 이용한 배치도 CAD자료의 자동 좌표부여 방법에 대한 연구)

  • Huh, Yong;Yu, Ki-Yun
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2008.10a
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    • pp.266-267
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    • 2008
  • 건설도면 CAD자료와 GIS자료를 연계하기 위해서는 임의의 좌표체계와 축척으로 표현된 건설도면 CAD 자료를 GIS 자료의 지도좌표로 변환하기 위한 과정 이 수행되어 야 한다. 본 연구에서는 준공과정에서 제출되는 건축물 CAD배치도상의 인접대지경계선 폴리곤과의 연속지적도상의 개별 필지 경계선의 형상 정합과정을 수행함으로써 좌표변환에 필요한 변수를 도출해 보았다. 이렇게 도출된 변환함수를 배치도면상의 건물경계선과 같은 다른 객체에 적용함으로써 개별 CAD자료를 GIS 자료에 연계할 수 있는 실좌표 부여 방법을 적용하고 평가해 보았다.

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A Study on the Integration GIS with Hydrodynamic Model (GIS와 해수유동모델의 연계방안 연구)

  • 김종규;김정현
    • Journal of Ocean Engineering and Technology
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    • v.16 no.6
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    • pp.1-6
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    • 2002
  • The integration of Geographic Information Systems (GIS) with the hydrodynamic model was conducted in order to revitalize the use of geographical information and to aid in the understanding of tidal circulation patterns. A 2D finite difference numerical model was used to simulate n tidal circulation in the Suyoung Bay in Busan, Korea. CIS, especially the ArcView S/W is used to input the data of the numerical model, and is also used for the visualization of model outputs on the ground in the loosely coupled method. In this paper, an electronic navigational chart (ENC), which provides more accurate information in the ocean and coastal areas than any other digital information, is used as a base map for this integration. With the help of GIS, the integration can support th understanding of oceanographic information.

A Method of Integrative Application of Various Spatial Data on GIS Contents Implementation (GIS 콘텐츠 구축에서의 다양한 공간자료의 통합적인 활용방안)

  • 연상호;홍일화
    • Proceedings of the Korea Contents Association Conference
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    • 2004.05a
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    • pp.144-150
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    • 2004
  • GIS 콘텐츠의 가장 중요한 대상이 되는 지형 및 지리 공간정보는 다양한 자료의 수집과 변환에 의한 시스템 통합을 통하여 완성된다. 즉 다양한 공간자료의 통일된 표준화에 의해 통합을 이룰 수 있으므로, 그 내용과 형태가 서로 다른 공간정보는 처음 수집된 상태에서 여러 변환 과정을 통해 다른 형태와 영상으로 새롭게 생성되어 통합을 이루는 요소가 될 수 있다는 것이다. 본 연구에서는 대형 댐의 건설로 인하여 수몰된 지역의 과거의 지공간의 정보원 찾아 현실세계와 비교하여 그 차이를 살펴보기 위하여 영상복원을 하는데 이용된 여러 가지의 지공간 자료의 처리과정을 통하여 일반 사진부터 디지털 위성영상자료, 수몰 직전에 제작된 지형도, 마을 사진 등을 통합과정 을 통하여 수몰 이전의 GIS콘텐츠의 공간정보의 통합에 의한 활용 기법을 확인하였다.

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