• 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.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.

• 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.

• 월간낙농육우
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• v.34 no.10
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• pp.153-162
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• 2014

낙농가들은 향후 경영계획에 있어 규모확대(32%)보다는 현상유지(54%)를 더 원하고 규모축소(1.7%)와 낙농포기(3.4%)의사는 전년(7.7%)대비 2.6%P가 감소한 것으로 조사됐다. 그리고 낙농을 포기하는 주된 이유로는 환경문제가 꾸준히 1순위를 차지하고 있지만 이번에는 그 비율이 상대적으로 높아졌다. 최근 '가축분뇨의 관리 및 이용에 관한 법률'을 포함한 환경관련 규제가 강화된데 따른 것으로 보인다. 낙농가들은 국내 낙농업 전망에 대해 88%가 어려울 것으로 내다보고 있지만 10%정도는 '해볼만하다'는 낙관론도 보였다. 시급한 환경현안으로는 무허가 축사(39%)와 퇴비화시설(36%) 문제를 꼽는 낙농가가 가장 많았으며, 환경문제를 해결하기 위해 농가당 최소 5000만 원~2억 원의 추가 투자가 필요한 것으로 조사됐다. 또한 FTA시대에 가장 중요한 낙농대책으로는 '전국단위 낙농제도 개선'(35%)과 '제도적인 우유소비확대 마련'(29%) 등으로 나타났다. 목장의 토지이용과 관련한 규제사항으로는 가축사육제한구역(31%), 상수원수질보전대책지역(14%), 군사시설보호구역(13), 개발제한구역(8%) 순으로 나타났다. 지역별로는 경기도와 강원도의 경우 '군사시설보호구역' 때문이라는 응답이, 충청도와 경상도는 '가축사육제한구역' 때문이라는 응답이 가장 높은 것으로 조사됐다. 이번 조사는 협회 낙농정책연구소(소장 조석진)가 최근 국내 낙농의 경영현실과 당면과제에 대한 실태를 파악하고 이를 낙농정책수립에 필요한 기초자료로 제공하기 위해 지난 2014년 5월 19일부터 6월20일까지 한 달간 낙농조합의 협조를 얻어 전국의 6,000 농가 중 700 농가를 선정해 실시, 그중 설문에 참여한 542농가의 응답결과를 분석한 것이다. 낙농정책연구소는 이번 조사 결과를 '2014 낙농경영 실태조사' 책자로 발간해 유관기관 및 협회 도지회 등에 배포했다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.235-236
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• 2019

스마트화 시대로 인해 주차장에서 운전자가 불편함을 줄여줄 수 있는 많은 기능들이 추가되었으나, 여전히 해결되지 못한 불편함은 많이 남아있다. 그 중 협소한 주차 공간에서 발생하는 접촉 사고와 차량을 주차하는데 많은 시간을 소모하는 불편함이 남아있다. 주차 공간 부족으로 인해 아파트 입구와 갓길, 소방차 지정구역에도 차량을 주차하는 등 많은 문제가 발생하고 있다. 아파트 입구의 주차된 차량들로 인해 운전자는 갑자기 튀어나온 어린이들을 발견하지 못하는 사고가 발생한다. 또한 갓길과 소방차 지정구역의 주차로 인해 화재 발생 시 소방차가 진입하지 못하여 화재 진압에 영향을 주어 2차 피해가 발생 하고 있다. 최근 몇 년간 부족한 주차 공간으로 인해 발생하는 문제를 해결하기 위해 소방법 강화 및 지정 주차구역, 주차 요일제 등을 시행하고 있으나, 주차 공간을 증가 시키는 등 직접적인 주차 공간 해결에는 많은 노력을 기울이지 않고 있다. 이러한 사고 피해를 예방하기 위한 연구의 중심으로써 주차 구역으로 설정하였으며, 자동화와 편의성을 추가하고자 하였다. 무인 주차 시스템의 자동화 구현을 위해 아두이노 개발환경에 3가지 센서를 적용하였으며, 편의성을 높이기 위해 RFID카드를 이용한 차량 정보 인식 기능을 적용하였다.

• Transportation Technology and Policy
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• v.3 no.1
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• pp.144-156
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• 2006

• Construction Engineering and Management
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• v.21 no.5
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• pp.20-22
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• 2020

• Journal of Korean Society of Transportation
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• v.20 no.5
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• pp.55-66
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• 2002

In many countries the principle of shielding is employed to permit a more logical approach to restricting new construction and prescribing obstacle marking and lighting. It also reduces the number of cases of new construction requiring review by authorities. Shielding principles are employed when some object, an existing building or natural terrain, already penetrates above one of the obstacle limitation surfaces described in Annex 14. If it is considered that the nature of an object is such that its presence may be permanent, then additional objects within a specified area around it may be permitted to penetrate the surface without being considered as obstacle. The shielding effect of immovable obstacles laterally in final approach and missed approach areas is more uncertain. In certain circumstances, it nay be advantageous to preserve existing unobstructed cross section areas, particularly when the obstacle is close to the runway. This would guard against future changes in either approach or take-off climb area specifications or the adoption of a turned take-off procedure.

• Korean Journal of Construction Engineering and Management
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• v.20 no.6
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• pp.23-33
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• 2019

The purpose of this study is to analyze the housing price variation within the redevelopment project district, affected by the characteristics of project and implementation stage. This study implemented the hedonic price model employing the actual transaction price with 24 dependent variables from 2006 to 2016 inside 19 redevelopment districts in Seoul. Research finding indicates that the larger ratio of the number of tenants and general distribution, the smaller ratio of rented households and the more positive effect of housing price. It is noteworthy that this study demonstrated the actual transaction price of houses located within the project districts by implementation stage. This study is expected to help the policy makers, the developers and the investors make more reliable decisions on the feasibility study related to the redevelopment project.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.36 no.6
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• pp.433-442
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• 2018

The reservoir area is defined as the area surrounded by the planned flood level of the dam or the land under the planned flood level of the dam. In this study, supervised classification based on RF (Random Forest), which is a representative machine learning technique, was performed to detect cropland in the reservoir area. In order to classify the cropland in the reservoir area efficiently, the GLCM (Gray Level Co-occurrence Matrix), which is a representative technique to quantify texture information, NDWI (Normalized Difference Water Index) and NDVI (Normalized Difference Vegetation Index) were utilized as additional features during classification process. In particular, we analyzed the effect of texture information according to window size for generating GLCM, and suggested a methodology for detecting croplands in the reservoir area. In the experimental result, the classification result showed that cropland in the reservoir area could be detected by the multispectral, NDVI, NDWI and GLCM images of UAV, efficiently. Especially, the window size of GLCM was an important parameter to increase the classification accuracy.