• Title/Summary/Keyword: Road Digital Map

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Extracting Damage Information from Torrential Rainfall using Airphotos and Spatial Data (항공사진과 공간자료를 이용한 집중호우로 인한 피해정보 추출 방법에 관한 연구)

  • Nam, Gi-Beom;Kim, Kye-Hyun;Seo, Jung-Taek
    • Spatial Information Research
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    • v.18 no.2
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    • pp.35-44
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    • 2010
  • This research intended to estimate the damage information from torrential rainfalls using airphotos and spatial data which have been rapidly increasing their applicability recently. The study area was Bonghwagun of Gyungsangbukdo where the large amount of damages were occurred from torrential rainfall in July, 2008. For this study, the database was constructed for the study area by collecting usable data. The interpretable items from the airphotos of 40cm spatial resolution were selected. Also, the useful GIS layers such as road were selected in the digital map to extract the damage information more accurately and rapidly. The damaged area was easily identified through the comparison of pre- and post-disaster airphotos. The recovery cost was estimated by applying unit cost to the damaged area. GIS's overlay function was used to extract the damage information of for individual items damaged. The method for extracting damages information using GIS and airphotos could be more efficient and cost effective in case of relatively wide and unapproachable damaged areas. It is also expected that the method using high resolution imagery would lead to minimize the secondary damages as well since it can facilitate the damage estimation within short period of time thereby supporting early securing budget for recovery.

A Study of Public Records Management Act: Legal Status of the National Archives of Korea and Right to Know (『공공기록물 관리에 관한 법률』의 제정 의의와 개선방안 - 국가기록원의 위상과 국민의 알권리를 중심으로 -)

  • Kim, You-Seung
    • Journal of Korean Society of Archives and Records Management
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    • v.8 no.1
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    • pp.5-25
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    • 2008
  • This article reviews the current Public Records Management Act which revised in October 2006 and put in force in April 2007. Since Public Records Management Act has been enacted in 1999, the external development of record management is significant. The Road Map for Record Management Reform in 2005 and the Information Strategy Project in 2006 are prime examples. However, our legal system concerning record management is still posing a number of problems, ranging from issues about objects and definitions of record management to issues of access. These issues have been subject to serious critics from various stakeholders, including civil organizations and academics. The article analyses a legal status of the National Archives of Korea and issues concerning access to current and archival records. As a result of the discussion, the article provides alternative plans.

Relationship between Abundances of Kaloula borealis and Meteorological Factors based on Habitat Features (서식지 특성에 따른 맹꽁이 개체수와 기상요인과의 관계 분석)

  • Rho, Paikho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.3
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    • pp.103-119
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    • 2016
  • This study aims to assess habitat feature on the large-scale spawning ground of the Boreal Digging Frog Kaloula borealis in Daemyung retarding basin of Daegu, and to analyze the relationships between species abundance and meteorological factors for each habitat. Fifty-seven(57) pitfalls were installed to collect species abundance of 4 survey regions, and high-resolution satellite image, soil sampling equipment, digital topographic map, and GPS were used to develop habitat features such as terrain, soil, vegetation, human disturbance. The analysis shows that the frog is most abundant in sloped region with densely herbaceous cover in southern part of the retarding basin. In the breeding season, lowland regions, where Phragmites communis and P. japonica dominant wetlands and temporary ponds distributed, are heavily concentrated by the species for spawning and foraging. Located in between legally protected Dalsung wetands and lowland regions of the retarding basin, riverine natural levee is ecologically important area as core habitat for Kaloula borealis, and high number of individuals were detected both breeding and non-breeding seasons. Temperate- and pressure-related meteorological elements are selected as statistically significant variables in species abundance of non-breeding season in lowland and highland regions. However, in sloped regions, only a few variables are statistically significant during non-breeding season. Moreover, breeding activities in sloped regions are statistically significant with minimum temperature, grass minimum temperature, dew point temperature, and vapor pressure. Significant meteorological factors with habitat features are effectively applied to establish species conservation strategy of the retarding basin and to construct for avoiding massive road-kills on neighboring roads of the study sites, particularly post-breeding movements from spawning to burrowing areas.

A Optimal Method of Sensor Node Deployment for the Urban Ground Facilities Management (도시지상시설물 관리를 위한 최적 센서노드 배치 방법)

  • Kang, Jin-A;Nam, Sang-Kwan;Kwon, Hyuk-Jong;OH, Yoon-Seuk
    • Journal of the Korean Association of Geographic Information Studies
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    • v.12 no.4
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    • pp.158-168
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    • 2009
  • As nation and society progresses, urban ground facilities and their management system get more complicated and the cost and effort to control the system efficiently grows exponentially. This study suggests to the deployment method of a sensor node by Wireless Sensor Network for controling the Urban Ground Facilities of National Facilities. First, we achieve the management facilities and method using the first analysis and then make the coverage of sensing and then set up the Sensor Node in Urban Ground Facilities. Second, we propose the solution way of repetition by the second analysis. And, we embody the GIS program by Digital Map and this method, we improve the reality by overlapping an aerial photo. Also we make an experience on the sensor node allocation using making program. we can remove the repetition sensor node about 50%, and we can confirm that the sensor nodes are evenly distributed on the road.

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NC Soft's Entertainment Expansion Strategy : Focusing on Exploration and Exploitation (엔씨소프트의 엔터테인먼트 확장 전략 : 탐험과 활용을 중심으로)

  • Kwon, Sang-Jib
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.3
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    • pp.1-11
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    • 2021
  • NC Soft will continue to dream of an entertainment innovation world where customers are connected through game and contents. NC Soft images an expansion in entertainment industry which open doors to the future of enjoy break through innovative online game and creative AI & IT technologies, focused on new business opportunities that are solely NC's own. This study starts with the implication on why focusing on exploration innovation and exploitation strategy at the same time in NC Soft is so challenging. NC Soft manages to their online & mobile gaming competencies in the long term and achieves their sustainable growth by incremental innovation (e.g. game planning, game programming, and graphic design). Also, for innovative success, pursuing exploration strategy is essential. NC Soft have built a strategic alliance spanning K-POP, digital contents platform, movie, and animation, sharing the connectivity of entertainment domains with major contents corporations. The findings of this study would also beneficial to entertainment and contents corporation executives and could provide some road-map on managing the dual challenges of exploration and exploitation implementations.

ICT Convergence Healthcare Services Status and Future Strategies (ICT융합 헬스케어 서비스 현황 및 발전전략)

  • Lee, Tae-Gyu
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.10
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    • pp.865-878
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    • 2017
  • To realize the healthy life of human, mental, physical, and environmental factors must be managed continuously and stably. In order to manage human health, the 21st century healthcare field is essential ongoing interactions and convergence with ICT technologies. Such demands have created a convergence of technologies (fusion technology) in combination with the heterogeneous technologies. And, with the convergence of medical technology and ICT technologies, the development of personalized therapy environments is created. Advances in ICT-converged healthcare services are progressing due to the development of diverse wearable devices. Such ICT fusion system is exponentially increasing the complexity of the ICT convergence healthcare system and is resulting in various technical, institutional, environmental, and cultural issues. This study explores the status of developments in ICT healthcare technologies from the past to date, identifies major technology and policy issues to address these challenges. Finally it will recommend healthcare policies and a future road-map.

Comparative Study of GDPA and Hough Transformation for Linear Feature Extraction using Space-borne Imagery (위성 영상정보를 이용한 선형 지형지물 추출에서의 GDPA와 Hough 변환 처리결과 비교연구)

  • Lee Kiwon;Ryu Hee-Young;Kwon Byung-Doo
    • Korean Journal of Remote Sensing
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    • v.20 no.4
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    • pp.261-274
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    • 2004
  • The feature extraction using remotely sensed imagery has been recognized one of the important tasks in remote sensing applications. As the high-resolution imagery are widely used to the engineering purposes, need of more accurate feature information also is increasing. Especially, in case of the automatic extraction of linear feature such as road using mid or low-resolution imagery, several techniques was developed and applied in the mean time. But quantitatively comparative analysis of techniques and case studies for high-resolution imagery is rare. In this study, we implemented a computer program to perform and compare GDPA (Gradient Direction Profile Analysis) algorithm and Hough transformation. Also the results of applying two techniques to some images were compared with road centerline layers and boundary layers of digital map and presented. For quantitative comparison, the ranking method using commission error and omission error was used. As results, Hough transform had high accuracy over 20% on the average. As for execution speed, GDPA shows main advantage over Hough transform. But the accuracy was not remarkable difference between GDPA and Hough transform, when the noise removal was app]ied to the result of GDPA. In conclusion, it is expected that GDPA have more advantage than Hough transform in the application side.

A Study on the Typical Characteristics and Conservation Plan of Roadscape as a Modern Asset - Case Study of Yeongdo-gu, Busan - (근대 자산으로서 길에서 보는 경관의 유형적 특성과 경관 보전 방안에 관한 연구 - 영도구를 사례로 -)

  • Kim, Seong-Wan;Kang, Young-Jo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.46 no.6
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    • pp.97-110
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    • 2018
  • This study examined the value of the old roads and roadscapes as modern assets. Topographic maps of the two years (1916 and 1919, which were produced by the Japanese Government-General of Korea) and the digital topographic map produced in 2017, were analyzed. The total amount of roads that have survived for the past 100 years are located in 108 places and total 26.32km. After examining the remnants of the roads in YeongDo, the type of scenery experienced along the roads were classified into nine kinds. The place where a sequential scenery experience takes place due to the survival of the past, the experience is based on the transition of historical scenery, not the scenery of the present time. A new model that can preserve, manage and plan this scenery is required. Therefore, we propose a new landscape model that elevates the concept of gaze from a spatial concept to a spatiotemporal concept. Based on this model, we propose a conservation criterion of the landscape viewed on the road as a viewpoint. As a modern asset for the next 100 years of YeongDo, it is necessary to understand and preserve the meaning of the landscape and roadside scenery as a transit landscape network. The remnant of roads from 100 years ago suggests that the scenery on the road was has been maintained, and it is the historical landscape of the YeongDo area. Through the landscape conservation plan proposed in this study, it is expected that the historical roads and their landscape will be positioned as a modern asset and an aspect of local heritage, and the future conservation and management of the roads and roadscapes will continue.

Development of a user-friendly information system for river water quality using Web GIS (Web GIS를 이용한 수요자 중심의 하천수질 정보시스템 구현)

  • 엄정섭;신소은
    • Spatial Information Research
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    • v.10 no.1
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    • pp.45-59
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    • 2002
  • The author argues that the current Government Information System for river water quality appears to be non-user friendly due to lack of the cartographic representation for the field monitoring data. Acknowledging these constraints, an operational, user-friendly information system has been developed by combining Internet technology with GIS. A digital map for water quality has been generated by overlaying monitoring data on existing cartographic data such as road, topography and administrative boundary etc. A user interface was designed to address the need to querry the large spatial databases by non-GIS and non-environmental experts. The system has been checked experimentally and enabled the users to querry data required simply. And detailed visual maps for water quality can be generated over large areas quickly and easily. A visual mapping system for water quality was developed by reframing the monitoring data as graphic symbols and it was ideally suited to exploring area-wide water quality at a user-friendly manner due to extensibility and scalability along the various survey points. This system based on Web GIS could be accessed anywhere if internet is available. It would play a crucial role in improving the quality of public information service if it is operationally introduced into the Government since the highly user-friendly interface provides a completely new means for disseminating information far water pollution in a visual and interactive manner to the general public.

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GIS and Statistical Techniques used in Korea Urban Expansion Trend Analysis (GIS와 통계기법을 이용한 대한민국 도시확장 패턴분석)

  • Son, Jung-Woo;Jeon, Sung-Woo;Choi, Chul-Uong
    • Journal of Korean Society for Geospatial Information Science
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    • v.17 no.4
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    • pp.13-22
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    • 2009
  • Urban expansion has caused environmental problems, traffic jam and real estate. Trend analysis of Urban expansion is needed for analysis and prediction of the existing problem-solving, urban planning and land use. In this study, We constructed database based on MOE(Minister of environment)'s landcover(1980's, 2000's), 1: 25,000 digital topographical map using of DEM and data of the National Statistical Office for urban and build up expand analysis of South Korea. As a result, The rate of increase in population of Gyeonggi-do, Incheon and Ulsan are high but Jeollanam-do is low. Area of development zone was 2.15 fold increase in comparison with before it. Slope aspect is south or east and urban expansion was increase in district such as Chungcheongnam-do, Gyeonggi-do, Jeollanam-do. Existing road of accessibility was high than development zone. Metropolitan city developre it. In conclusion, we found that South Korea urban expansion was developed from metropolitan city. In natural topographical conditions, the development was progress advantageous zone to disadvantageous zone. Also, we found that population was rapidly increase with new development as the center zone in urban expansion zone.

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