• 제목/요약/키워드: Resources survey

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석모도 지열수 개발을 위한 자기지전류탐사의 적용 (Application of magnetotelluric survey for development of deep geothermal water at Seokmo Island, Korea)

  • 이태종;송윤호;박덕원
    • 한국지열·수열에너지학회논문집
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    • 제4권1호
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    • pp.1-10
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    • 2008
  • A magnetotelluric survey and geological survey have been performed to delineate deeply extended fracture systems at the geothermal field in Seokmo Island, Inchon, Korea. One borehole(BH-1) succeed to meet a large fracture system at the depth of 750 m where approximately $72^{\circ}C$ geothermal water is overflowing, while the other borehole(BH-2), which is about 200 m eastward from BH-1, failed to develop enough geothermal water even at the depth of 1,200m. Though there have been so many electric noise sources around the survey region, good quality of MT data above 1 Hz could be obtained with careful installation, remote reference processing. Inversion of MT data for two lines roughly perpendicular to the two major lineaments respectively show that the two lineaments are related to the fracture systems that are extended at least down to 1.5 km depth and inclined eastwards. From the interpretation, additional drilling for BH-2 is recommended and finally meet the fracture systems at the depth of 1,280 m and resulted in overflow of large amount of geothermal water of temperature $69.4^{\circ}C$ from BH-2.

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공공부문의 효율적인 정보자원관리를 위한 조사 개선방안 연구 (A Study on the Survey for efficient Management of the Information Resource in Pubic Sector)

  • 최영진;나종회
    • 한국컴퓨터정보학회논문지
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    • 제12권6호
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    • pp.269-277
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    • 2007
  • 오늘날 정보자원에 대한 투자가 지속적으로 증가하고 규모가 커지면서 예산의 효율적 배분차원에서 정보화 투자와 정보자원관리의 중요성이 부각되고 있다. 국내의 경우 1997년부터 정보자원관리의 개념과 정보자원관리의 기본으로 인식되어 정보자원조사를 실시하고 있다. 본 연구에서는 효율적인 정보자원 관리를 위해서 기존 정보자원조사의 문제점을 파악하고 개선방안을 도출하였다. 특히 이러한 정보자원 개선방안으로써 정보자산의 효율적 관리를 위한 정보시스템의 구축 및 활용, 정보자원 설문항목에 대한 재정립, 범 부처차원에서 정보자산관리를 위한 통제 메카니즘의 구현, 그리고 정보화에 대한 기획 및 통제기능을 강화와 정보화 성과평가 기반한 정보자산이 도입관리 절차 마련 등 4가지를 제시하였다.

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The geophysical survey in shallow water and transitional region

  • Ashida Yuzuru
    • 한국지구물리탐사학회:학술대회논문집
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    • 한국지구물리탐사학회 2002년도 정기총회 및 제4회 특별심포지움
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    • pp.1-15
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    • 2002
  • In the present paper, the marine reflection seismic survey, the survey using Chirp sonar, the detail topographic survey by narrow multi-beam sounding machine, the sea bottom geological condition survey by side-scan sonar, the sea bottom sampling by core sampler and the positioning by DGPS as the geophysical survey in shallow and transitional region are introduced by placing emphasis on hardware configuration.

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Preference and Use of Electronic Information and Resources by Blind/Visually Impaired in NCR Libraries in India

  • Kumar, Shailendra;Sanaman, Gareema
    • Journal of Information Science Theory and Practice
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    • 제1권2호
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    • pp.69-83
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    • 2013
  • This paper aims to determine the preference and use of electronic information and resources by blind/visually impaired users in the leading National Capital Region (NCR) libraries of India. Survey methodology has been used as the basic research tool for data collection with the help of questionnaires. The 125 in total users surveyed in all the five libraries were selected randomly on the basis of willingness of the users with experience of working in digital environments to participate in the survey. The survey results were tabulated and analyzed with descriptive statistics methods using Excel software and 'Stata version 11'. The findings reveal that ICT have a positive impact in the lives of people with disabilities as it helps them to work independently and increases the level of confidence among them. The Internet is the most preferred medium of access to information among the majority of blind/visually impaired users. The 'Complexity of content available on the net' is found as the major challenge faced during Internet use by blind users of NCR libraries. 'Audio books on CDs/DVDs and DAISY books' are the most preferred electronic resources among the majority of blind/visually impaired users. This study will help the library professionals and organizations/institutions serving people with disabilities to develop effective library services for blind/visually impaired users in the digital environment on the basis of findings on information usage behavior in the study.

인터넷 고해상도 영상서비스를 이용한 농촌어메니티 자원조사 기술에 관한 연구 - Google Earth를 중심으로 - (A Study on Surveying Techniques of Rural Amenity Resources Using Internet High-resolution Image Services - mainly on Google Earth -)

  • 장민원;정회훈;이상현;최진용
    • 농촌계획
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    • 제15권4호
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    • pp.199-211
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    • 2009
  • The aim of this paper is to investigate the applicability of high spatial resolution remote sensing images for conducting the rural amenity resources survey. There are a large number of rural amenity resources and field reconnaissance without a sufficient preliminary survey involves a big amount of cost and time even if the data quality cannot always be satisfied with the advanced study. Therefore, a new approach should be considered like the state-of-the-art remote sensing technology to support field survey of rural amenity resources as well as to identify the spatial attributes including the geographical location, pathway, area, and shape. Generally high-resolution satellite or aerial photo images are too expensive to cover a large area and not free of meteorological conditions, but recently rapidly-advanced internet-based image services, such as Google Earth, Microsoft Bing maps, Bluebirds, Daum maps, and so on, are expected to overcome the handicaps. The review of the different services shows that Google Earth would be the most feasible alternative for the survey of rural amenity resources in that it provides powerful tools to build spatial features and the attributes and the data format is completely compatible with other GIS(Geographic information system) software. Hence, this study tried to apply the Google Earth service to interpret the amenity resources and proposed the reformed work process conjugating the internet-based high-resolution images like satellite and aerial photo data.

A Study on the Strategy of Resolving Impediments to Use of Digital Resources : The Case of Korean Public Libraries

  • Noh, Younghee;Wang, Dongho
    • International Journal of Knowledge Content Development & Technology
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    • 제11권3호
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    • pp.81-112
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    • 2021
  • In this study, users' perceptions and concerns about digital information resources were investigated, focusing on impediments to the use of digital resources, to devise measures for improvement by identifying factors that hinder the use of digital information resources. To achieve the purpose of the study, the research identifies the inconvenien ce factors and establishes the user inconvenience list based on prior research and the current status survey. Based on the derived list, a survey was conducted on users of public libraries. Through this study, it was found that the use of digital information resources can be enhanced by improving the internal library system. Specifically, it refers to improving search performance and accessibility of digital data, providing one-stop services for digital information resources through the operation of an integrated data management system, conducting customized user education, and establishing a digital information resource preservation system, e.g. web archiving. Also, improving the external environment and system, such as contracting with more libraries for digitized data use agreements, strengthening support, unifying the names and classifications of digital information resources, and simplifying the procedure for using digital information resources, is of great importance.

대천-원산도 해저터널 부지조사를 위한 단일채널 탄성파자료의 정밀 처리 및 분석 (Detailed Processing and Analysis on the Single-channel Seismic Data for Site Survey of Daecheon-Wonsando Subsea Tunnel)

  • 김원식;박근필;김현도;정순홍;구남형;이호영;박의섭
    • 지구물리와물리탐사
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    • 제13권4호
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    • pp.336-348
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    • 2010
  • 한-중 해저터널 후보지로 선정된 대천-원산도 지역의 부지조사를 위해 버블펄서(Bubble pulser) 음원을 이용한 단일채널 탄성파 탐사와 시추조사가 2008년 및 2009년에 수행되었다. 본 연구는 이 단일채널 탐사자료를 정밀 처리하고 시추자료와 연계하여 후보지역의 해저터널 안정성 평가와 시공설계에 필요한 기반암 심도 및 특성을 분석하는데 목적이 있다. 이를 위해 일반적으로 다중채널 탄성파자료에 적용되던 자료처리 기법 중 주파수-파수영역 필터링(F-K filtering)을 적용하여 교류전원잡음 등을 제거하고, 중합후 심도구조보정(post-stack depth migration) 기법을 적용하여 심도단면을 제작하였다. 수행 결과 단일채널 탄성파자료로부터 향상된 심도영역단면을 제작할 수 있음을 확인하였고, 시추자료와 통합 해석을 통하여 조사지역의 개략적인 기반암 분포와 지질특성을 파악할 수 있었다. 단층, 파쇄대 등의 세밀한 구조 파악은 버블펄서 음원과 단일채널 자료의 특성상 어려웠으나, 좀 더 해상도가 높은 탄성파자료가 있을 시 가능할 것으로 보인다. 이에 향후 해저터널 탐사 시 고해상자료를 얻기 위한 추천사항을 수록하였다.

A Study on the Current Status of Mountain-Grown Ginseng

  • Im, Byung-Ok
    • 한국자원식물학회지
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    • 제24권6호
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    • pp.733-740
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    • 2011
  • For the current study, 2,000 questionnaire sheets were printed and distributed while at the same time postal questionnaires were also conducted. The questionnaire survey was conducted July 25 through September 25, 2008, whereby 206 copies of desirable responses were secured. Analysis of the survey made it possible to grasp the overall current status and prospects of the mountain-grown ginseng business, and the level of technology required for cultivating mountaingrown ginsengs. It was learned that, with no legal and institutional arrangements now in force, no precise facts and figures concerning the total area cultivated and the quantity produced are currently available, and that the products are being marketed under the table. Under such circumstances, it is high time for the mountain-grown ginseng cultivation business to contribute to the promotion of incomes of the farming households and the generation of national wealth by developing the business into a systematic industry. This study conducted a survey on the current status of mountain-grown ginseng producers and of their production, thereby contributing to the introduction of policies for mountain-grown ginsengs.