• Title/Summary/Keyword: 자료확충

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추계학적 시강우모의 기법을 이용한 극한강우 발생 및 시간단위 설계강우량 산정기법에 대한 평가

  • Lee, Jung-Ki;Kim, Byung-Sik;Jun, Byong-Hee;Kim, Hung-Soo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2012.05a
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    • pp.344-344
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    • 2012
  • 추계학적 강우모의발생기법은 수문학적 분석에 널리 이용되는 방법으로서 장기간의 강우입력 자료를 이용할 수 없는 경우 과거의 관측 자료를 반복하여 이용하기 보다는 과거 관측치의 통계학적 특성을 지니고 있는 합성강우량 시계열자료를 모의하여 설계 강우량 산정 및 강우-유출모형을 이용한 장기해석 등과 같은 수문학적 해석을 위한 입력 자료를 확충하기 위해 이용된다. 그러나 최근 기후변화로 인해 수문학적 설계 강우량 산정 시 가장 중요한 강우발생 특성과 극한치의 특성이 변화하고 있기 때문에 전통적인 추계학적 강우발생기법을 이용하여 강우 시계열자료를 확충하는 것은 한계가 있을 것으로 추정되고 있다. 이에 본 논문에서는 최근 유럽 등에서 도시배수체계의 설계를 위해 널리 이용되고 있는 Bartlett-Lewis rectangular pulse 모형을 이용하여 시간단위 강수량자료를 확충하고 모의된 강우량시계열자료와 실측 강우량자료를 통계학적으로 비교하였다. 또한, 극한치 분석을 통해 변화하는 기후상황에서 적합한지를 평가하였다.

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Derivation of the Critical Minimum Values of the Multiple Correlation Coefficient for Augmenting Hydrologic Samples (수문자료 확충을 위한 다중상관계수의 한계최소치 유도)

  • 허준행
    • Water for future
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    • v.27 no.1
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    • pp.133-140
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    • 1994
  • The augmenting hydrologic data using a correlation procedue has been used to improve the estimates of the mean and variance at the site of interest with short record when one or more nearby sites with longer records are available. The variance of the unbiased maximum likelihood estimator of ${{\sigma}_v}^2$ derived by Moran based on the multivariate normal distribution is modified into the form of Matalas and jacobs for the bivariate normal distribution to get the critical minimum values of the multiple correlation coefficient which give the improvement for estimation the variance at the site of interest. Those values are tabulated for various lengths of records and the number of sites.

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A Study of ST Material Storage Space Analysis and Expanding Plan: Case Study for KISTI (과학기술자료 보존공간 분석과 확충방안 연구: KISTI 사례를 중심으로)

  • Lee, Seon-Hee;Yoon, Hee-Yoon
    • Journal of Information Management
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    • v.42 no.4
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    • pp.59-74
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    • 2011
  • Despite of increasing digital materials, it is still important to collect print materials and keep their storage space for national level self supporting system as a science and technology(ST) material import country. In order to deal with the storage space issue, we conducted a ST material storage space and its expanding plan for Korea Institute of Science and Technology Information(KISTI). This paper examined first the domestic and overseas standard for the library stack space, analyzed current KISTI library stack space, and finally forecasted its demand in 2020 based on the increasing rate of the stack space. The expanding plans are suggested at the individual library level and also at the cooperative library storage facilities. The results of this paper will help that other libraries diagnose the present status and forecast the future library stack space when they face with the similar problems as it is examined in the KISTI case.

Archiving Situation and Improvement Strategy of Video Resources in Korea (우리나라 영상분야 자원관리 현황 및 개선전략)

  • Kim, Sun-Ae
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.4
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    • pp.131-142
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    • 2009
  • Visual industry can contribute to this national industry is a high-value industry. Nevertheless, video resources expansion strategy at national level is lacking. There have been several institutions and organization conducting film archiving and related activities in Korea. Korean Film Archive(KOFA) is the only institution whose status is protected by the law. The purpose of this study was to suggest the strategic plan which is able to support the video industry and academic research. For methods to strengthen video resources, role adjustment of KOFA conducting film archiving and unification or integration of collection system for archiving broadcast materials were proposed.

A Study on the Roles of Academic Library for Supporting Class and Learning Activities in Korea (대학도서관의 수업·학습 활동 지원 역할에 관한 연구)

  • Lee, Yong-Jae;Lee, Ji-Wook
    • Journal of Korean Library and Information Science Society
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    • v.50 no.4
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    • pp.359-379
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    • 2019
  • This study aims to suggest the ways to reinforce academic library's supports for users' class·learning activities. For this purpose, this study collected the development plans of academic libraries in Korea, and analysed the plans for supporting class·learning activities. As a result, it is shown that the most libraries emphasized 'expansion of learning material' and marked it on development plan. As subsequent plans, libraries provided the action plans of 'expansion of reading education and reading programs', 'expansion of electronic materials', 'expansion of characterized materials' one after another. This study suggests 'user-centered collection development and expansion of learning materials', 'activation of library services making use of big data', 'enlargement of engagement services for handicapped and foreign students' as ways to strengthen the services of academic libraries to support class·learning activities of users.

Generation of radar rainfall data for hydrological and meteorological application (I) : bias correction and estimation of error distribution (수문기상학적 활용을 위한 레이더 강우자료 생산(I) : 편의보정 및 오차분포 산정)

  • Kim, Tae-Jeong;Lee, Dong-Ryul;Jang, Sang-Min;Kwon, Hyun-Han
    • Journal of Korea Water Resources Association
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    • v.50 no.1
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    • pp.1-15
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    • 2017
  • Information on radar rainfall with high spatio-temporal resolution over large areas has been used to mitigate climate-related disasters such as flash floods. On the other hand, a well-known problem associated with the radar rainfall using the Marshall-Palmer relationship is the underestimation. In this study, we develop a new bias correction scheme based on the quantile regression method. This study employed a bivariate copula function method for the joint simulation between radar and ground gauge rainfall data to better characterize the error distribution. The proposed quantile regression based bias corrected rainfall showed a good agreement with that of observed. Moreover, the results of our case studies suggest that the copula function approach was useful to functionalize the error distribution of radar rainfall in an effective way.

에너지강국 실현기반 확충

  • Korea Energy Forum
    • 에너지협의회보
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    • s.75
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    • pp.22-29
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    • 2006
  • 이 자료는 2006년도 산업자원부 업무계획 내용 중 에너지ㆍ자원부문을 발췌하여 게재한 것입니다.

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Strategies for Expanding Foreign Electronic Scholarly Information Resources (해외전자학술자료 확충 전략에 관한 연구)

  • Shim, Won-Sik
    • Journal of the Korean Society for Library and Information Science
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    • v.43 no.1
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    • pp.293-311
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    • 2009
  • The purpose of this article is to present comparative analysis of electronic information purchase in Korean university libraries relative to university libraries overseas. An overall comparison is made between libraries in Korea and in the U.S. in terms of their budget for electronic information. In addition, we compared the lists of web databases in service among three top-tier Korean universities and nine foreign universities(6 in the U.S., 1 in Canada, 1 in Australia, and 1 in China). The findings show that Korean universities tend to subscribe heavily to electronic journals packages than competing libraries overseas. However, in terms of providing subject-based reference databases, our libraries are far behind even mediocre institutions in these countries. We propose a number of recommendations to strengthen national licensing of electronic scholarly materials as a way to enhance access to electronic information through university libraries.

A Study on Lottery Fund Usage for Expanding Libraries and Promoting Reading Culture (도서관 확충과 독서문화 진흥을 위한 복권기금의 활용방안에 관한 연구)

  • Choi, Yong-Gwan
    • Journal of Korean Library and Information Science Society
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    • v.35 no.4
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    • pp.377-400
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    • 2004
  • Lottery fund which amounts 1 trillion 4,004 billion in m, has been used for establishing libraries and buying books as well as other materials. In this regard, it is important to know exact present conditions and characteristics of lottery fund and seek for the need to increase lottery fund for expanding libraries as well as promoting reading culture Also this study suggest the way how lottery fund can be used for library as an opportunity for solving the Pending issues that libraries has delayed for want of funds.

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