• Spatial Information Research
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• v.15 no.3
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• pp.203-218
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• 2007

The purpose of this article is to set up the scientific and reasonable norm of location and service area determination instead of the pro-administrative lacking availability, so as to propose more practical and reasonable standard of space unit for the location of facilities. This article has accepted the method of Voronoi Diagram as a new scientific and reasonable criteria. The article chooses and realizes a model that can propose a new service area, transform and apply to improve its reality, and assesses which has more reality and compatibility by comparing the models. The result from this procedure can be adapted in objectification of the service area determination and formation of the standard space unit.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.3
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• pp.146-155
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• 2006

A handful of previous studies have attempted to integrate socioeconomic data and remotely sensed data for urban quality of life assessment with their spatial dimension in a zonal unit. However, such a zone-based approach not only has the unrealistic assumption that all attributes of a zone are uniformly spatially distributed throughout the zone, but also has resulted in serious methodological difficulties such as the modifiable areal unit problem and the incompatibility problem with environmental data. An alternative to the zone-based approach can be a pixel-based approach which gets its spatial dimension through a pixel. This paper proposes a pixel-based approach to linking remotely sensed data with socioeconomic data in GIS for urban quality of life assessment. The pixel-based approach uses dasymetric mapping and spatial interpolation to spatially disaggregate socioeconomic data and integrates remotely sensed data with spatially disaggregated socioeconomic data for the quality of life assessment. This approach was implemented and compared with a zone-based approach using a case study of Fulton County, Georgia. Results indicate that the pixel-based approach allows for the calculation of a microscale indicator in the urban quality of life assessment and facilitates efficient data integration and visualization in the assessment although it costs an intermediate step with more processing time such as the disaggregation of zonal data. The results also demonstrate that the pixel-based approach opens up the potential for the development of new database and increased analytical capabilities in urban analysis.

• Journal of the Korean Geographical Society
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• v.37 no.1
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• pp.75-92
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• 2002

The aim of this article is to critically review the PRC's policies related to its minority nationalities with a special emphasis on the identification of minority nationalities(minzuzhibie) and the establishment of minority nationality autonomous regions(minzuzizhiquyu), as a part of national integration Process. In that Process, the intentional application of the criteria on nationality identification, the establishment of minority nationality autonomous regions, the population redistribution policies and the gerrymandering by the government played an important role in the deconstruction of traditional basis of identities and the territorialization of ethnicity. The goals of government have been the redefinition of 'Chinese', the the invention of 'Chinese nationality(zhongguominzu or zhonghuaminzu)'and the unification of its national territory. However, these have led to the unexpected result by creating the new ethnic-territorial identities along with the nationalities identified and the territories defined by the government.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.595-597
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• 2005

청소로봇은 대부분 랜덤방식 또는 바둑판식의 청소알고리즘으로 운용된다. 랜덤 알고리즘은 전체 청소 시간이 오래 걸린다는 단점을 가지고 있다. 랜덤 알고리즘의 문제를 해결하기 위한 바둑판식 알고리즘은 현재까지 가장 좋은 알고리즘으로 알려져 있으나 장애물이 복잡한 공간에서는 청소시간이 길어지는 단점을 가지고 있다. 이런 문제점을 해결하기 위하여 본 논문에서는 Group-k 라는 새로운 청소 알고리즘을 제안한다. Group-k 알고리즘은 청소시간을 단축시키는 목적보다는 청소시간은 같더라도 복잡한 구역일수록 나중에 청소함으로써 가능한 빠른 시간 내에 가장 많은 면적을 청소하는 것을 목표로 한다. 즉 인접한 복잡한 장애물들을 하나의 그룹으로 구성하고 그룹의 복잡성을 계산하여 복잡성이 낮은 그룹부터 먼저 청소하는 방식이다. 시뮬레이션에 기반한 실험을 통해 Group-k 알고리즘이 복잡한 장애물 구역을 그룹화하여 복잡한 공간을 효율적으로 청소함을 보여준다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.9 no.4
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• pp.252-260
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• 2005

In this research, case studies considering tunnel interface were conducted for zoning the ground into spatial area having similar geotechnical characteristics and estimating geotechnical properties for each area. The site for analysis consists of banded biotite gneiss, biotite schist and granite gneiss with spatial non-homogeneity, and for that reason weathering and fault zone were distributed with large scale. It's important thing to consider spatial ground zone and their geotechnical properties properly into stability analysis at design and construction stage. Also, in this studies, these analysis works are very useful for further decision making process by stability analysis.

• Journal of the Korean Geographical Society
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• v.44 no.6
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• pp.813-832
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• 2009

As accessibility to health-care service in less populated rural areas is geographically limited and demand for public health-care by the aging is increasing, a new approach for health-care service such as a home care service is becoming more popular. For a home care service, health-care personnels directly visit to location of health-care clients. Such changes in provision of health services require developing innovative and scientific approaches for efficient allocation of health resources and managing services by public health-care organizations. The purpose of this study is to formulate a location model for visiting health-care districting for the rural elderly and to develop an Automated Zoning Procedure (AZP) to solve this model. Mobility, workload balance and contiguity criteria are considered in the model. Three different objective functions are evaluated; 1) minimizing the sum of network distance between the unit areas in a district, 2) maximizing spatial interaction between the unit areas in a district, and 3) minimizing tour distance that visits each unit area exactly once in a district. The AZP for solving the model is developed and applied to a rural area. The application results demonstrate that the AZP can generate different districting systems for each objective functions.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.5
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• pp.139-150
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• 2007

As computer technology has been rapidly advanced, geographic information system (GIS) is recently used in many disciplines. In this study, for a model area in Seoul, seismic hazard potential relating to site effects, which are influenced by the subsurface geotechnical conditions, was estimated using the GIS tool. The distribution of pre-existing borehole drilling data in Seoul metropolitan area was examined for the regional estimation of site-specific seismic responses at the model area. Spatial geo-layers across the entire model area were predicted by constructing a GIS-based geotechnical information system (GTIS). A microzonation of site period $(T_G)$ for estimating site-specific seismic responses at the model area was performed within the GTIS. The spatial microzoning map of $T_G$ indicated seismic vulnerability of two- to four-storied buildings in the model area. Furthermore, a site classification map for determining the design ground motion was established based on the $T_G$ within the GTIS. This informed that most of location in the model area was categorized into current site classes C and D. This seismic microzonation framework for the model area could be applicable particularly in the entire Seoul metropolitan area based on the pre-existing borehole data.

• Journal of Korean Society for Geospatial Information Science
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• v.3 no.2 s.6
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• pp.173-181
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• 1995

Geospatial analysis method was applied for classification of suitable site for farmstead. Typical urban suburb and rural area was selected and analyzed, that is Cheongwon County in Chungbuk Province, South Korea. In this study, suitable site for the farmstead was classified by five grade in the other site except suitable area for paddy field, upland, settlement and Green Belt, regulated area for development around the city. Digital Elevation Model(DEM), detailed soil map, administration boundary map, stream map and Green Belt map where digitized and scoring tables were composed with scoring standard. In site verification, Geospatial Information System(GSIS) was quite good tools for suitable site classifying for farmstead causing farm household income increasing, environmental impact decreasing and scientific site selection.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.09a
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• pp.129-133
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• 2010

본 논문은 차량의 공회전시 불완전연소로 인한 일산화탄소의 배출량이 최대인 점에 착안하여 일반 네비게이션에서 제공하는 최단거리 모드로 주행했을 시와 '막힘없는 길 안내를 제공' 한다는 최신 공간정보기술인 실시간교통정보서비스를 적용했을 시의 공회전시간 및 일산화탄소 배출량을 비교 평가하여, 실시간교통정보서비스의 일산화탄소 저감효과를 추정해보기 위해 진행되었다. 대구시내의 교통정체구역인 수성구청에서 성서초등학교에 이르는 약 12km의 구간을 선정하여 2주간 동일구간을 요일별 시간대별로 주행함으로써 최단거리 안내서비스 주행시와 실시간교통정보서비스를 적용한 경로주행시의 공회전시간을 기록하고 환경부에서 제공하는 연료별 배출계수와 평균속도에 따른 일산화탄소 배출계수를 이용하여 일산화탄소 배출량을 산정하였으며, 측정결과 공회전시간이 약 28%, 일산화탄소 배출량은 약 57%의 감축효과를 보임을 확인하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.112-112
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• 2011

2010년 12월 8일 국회 본회의에서 "친수구역 활용에 관한 특별법"(이하 친수법)이 통과되었다. 친수법은 국가하천의 양안 2km 이내의 지역을 엄격한 기준에 의해 친수구역으로 지정하여 체계적으로 개발하도록 제도화하였다. 또한 특히 사업시행자를 공기업 및 지방자치단체 등 공공기관으로 제한하고 개발이익도 하천정비에 재투입하여 개발이익이 사유화되거나 이윤추구의 장이 되지 않도록 하는 법적 토대를 마련하고 있다. 우리나라의 하천은 지난 수십 년간 개발일변도 정책으로 하천 본래의 모습을 찾기 어렵다. 인구의 도시집중, 지속적인 개발, 하천에 대한 기대치 증가 등으로 앞으로도 하천 자체의 자정능력에 의한 회복은 기대하기가 쉽지 않다. 4대강 살리기 사업(이하 4대강사업)은 국내 하천의 이러한 절실한 현실이 고려되었다고 한다. 그런데 4대강사업으로 조성되는 수변지역을 그대로 방치하면 무분별한 난개발과 토지투기의 장으로 전락할 가능성이 크다. 또한 수변구역 주변의 넓은 토지는 이미 농경지화되어 있어 비료, 제초제 등 비점오염원의 하천유입으로 수질을 지속적으로 위협하고 있다. 이러한 제반 여건들이 친수법 제정의 주요한 동기가 되었다고 한다. 그러나 친수법의 제정에는 수많은 우여곡절이 포함되어 있다. 친수법은 법안이 발의된 이래 법안의 취지를 둘러싸고 향후 법 실행과 관련된 논의가 첨예하게 대립하여왔다. 본 연구는 이미 제기된 특별법의 문제점에 대하여 법적인 관점에서 짚어보고, 그에 따른 개선방안을 모색해 보고자 한다. 친수법의 제정을 위하여 꼭 특별법이라는 입법과정을 거쳐야 했는지 그리고 친수법이 상정하고 있는 사업의 성격 및 내용에 대한 법적인 타당성을 살펴보고자 한다. 또한 친수법 제4장에서 규정하고 있는 하천관리기금을 법률 구성의 입장에서 어떻게 파악할 수 있는지에 관한 점도 고찰하였다. 즉, 친수법이 구상하고 있는 [특별법의 제정${\rightarrow}$친수구역 개발에 의한 수익 창출${\rightarrow}$하천기금의 조성${\rightarrow}$건전한 하천관리]의 구도가 법적으로 어느 정도 균형과 조화를 이룰 수 있는지 고찰하였다.