• Title/Summary/Keyword: current collection

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A Study on the Development of the Founding Collection in Public Libraries (공공도서관 개관장서 구축 방안 연구)

  • Chang, D.H.
    • Journal of Korean Library and Information Science Society
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    • v.48 no.4
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    • pp.303-320
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    • 2017
  • This study illustrates the process of the development of founding collection in public libraries. Specifically, this study surveys such cases of ten public libraries recently opened. It also analyzes current laws and standards about library collection and compares the criteria with the ones in various manuals and reports. For the study, supplementary data were also collected through qualitative interviews and brain-storming discussions with public librarians and other regional government officials who were in charge of the library construction project. For the suggestion to improve the quality of such founding collection, the researcher put the emphasis on the construction of collection development policy for the library, on the official collection plan, on the adequate volume of founding collection, and on the strategies for collection programs about regional studies.

Reexamination on foreign collectors' sites and exploration routes in Korea (II) - with respect to T. Nakai - (외국인의 한반도 식물 채집행적과 지명 재고(II): Takenoshin Nakai (中井益之進))

  • Kim, Hui;Chang, Gae-Sun;Chang, Chin-Sung;Choi, Byoung-Hee
    • Korean Journal of Plant Taxonomy
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    • v.36 no.3
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    • pp.227-255
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    • 2006
  • Takenoshin Nakai (1882-1952), Japanese taxonomist and professor of the University of Tokyo, who was one of Korean flora specialists, conducted his plant exploration from 1909 to 1942 after he completed two volumes of Flora Koreana. His collections, which are currently deposited at the University of Tokyo herbarium (TI), are important research resources. Since all collection sites were simply described in his collection sites in Romanized characters based on Japanese pronunciation, it is difficult for Korean as well as Japanese botanists to pinpoint those sites using the current or the old Korean maps. No single literature has been available regarding his collection routes and sites, although this information is essential to current plant systematic research in Korea. From this current study, all locality names were reviewed based on his own collections as well as his written literatures, and those were listed as the order of his collection dates with seven maps here.

Analysis of Effect of Pantograph Cover on the Current Collection Quality of High Speed Train using Real Train Experiment (실차시험을 통한 팬터그래프 커버가 고속열차의 집전성능에 미치는 영향에 대한 분석)

  • Oh, Hyuck Keun;Kim, Seogwon;Cho, Yong-hyun;Kwak, Minho;Kwon, Sam Young
    • Journal of the Korean Society for Railway
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    • v.19 no.4
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    • pp.409-416
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    • 2016
  • The contact force characteristic between the pantograph and the catenary wire represents the current collection quality of trains; it should be precisely controlled under international standard. Recently, a noise reduction cover has been installed around the pantograph of high speed trains. However, little study on the contact force by the pantograph cover has been conducted. In this study, the impact on the current collection performance of the pantograph cover was analyzed by dynamic contact force measurement using a next generation high speed train (HEMU-430X). As a result, it was confirmed that the attachment of a pantograph cover could lower the mean contact force by approximately 50N at 300km/h. In addition, the pure difference of the average contact force by the presence of pantograph cover, except for the static pressure, was measured and found to be up to 110N at 300km/h. It was also found that the standard deviation of the contact force of 3~5N could be changed by use of a pantograph cover.

Study on the Current Collection Characteristics and Improvement Methods of Simple Catenary Systems (도시철도 simple catenary 가선구조에서의 집전성능 향상방안에 관한 연구)

  • Park Yong Cheol;Chang Sang-Hoon;Song Joong Ho
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.1360-1365
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    • 2004
  • The decisive criteria to determine collection performance is the contact force between pantograph and catenary. The contact force consists of a static force and dynamic force related to vibration characteristics, train speed and etc. The low contact force leads to the loss of contact, and most countries regulate it below $3\∼5\%$ at operation speed. This study presents a technical overview of criteria for collection performance and modelling and simulation methods to analyze dynamic characteristics of catenary.

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A Study on the Collection and Application Measures for Media Platform Based Materials (매체 플랫폼 기반 자료의 수집 및 적용 방안 연구)

  • Younghee Noh;Youngmi Jung;Aekyoung Son;Inho Chang;Hyunju Cha
    • Journal of Korean Library and Information Science Society
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    • v.55 no.1
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    • pp.193-214
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    • 2024
  • This study aimed to propose a method for collecting and applying media platform based materials at the National Library of Korea. Firstly, we analyzed the current status and limitations of data collection based on domestic media platforms, including the National Library of Korea. Secondly, a literature review method was used to investigate the current status and types of digital content based on media platforms. Thirdly, we identified the types of materials based on media platforms that are not currently included in the National Central Library's online material collection guidelines through the examination of cases from major overseas libraries. Fourthly, after reviewing technical and legal elements such as the definition of collection targets and scope for each new media, and collection methods, we established collection criteria. Fifthly, based on the research results, the policies proposed in this study are as follows: 1) there is a need to establish a clear legal basis for the collection of media platform based materials; 2) the development and presentation of collection guidelines for media platform based materials is necessary; 3) the development of collection tools and infrastructure for media platform based materials is required; 4) for the collection of media platform based materials, it is necessary to obtain permission for collection from targeted social media organizations, and to cooperate in linkage with organizations that produce and service extended reality content; 5) for the service activation of media platform based materials, it is necessary to improve accessibility for the usage activation of these materials, to enhance the content extensibility and ease of use of the e-deposit system including extended reality content, and to advance and construct spaces for reproducing extended reality content.

A Descriptive Study on the Collection Development Processes in School Libraries: Based on the Interviews with Teacher Librarians (학교도서관 장서개발과정에 관한 현상적 연구: 사서교사의 인식을 중심으로)

  • Chang, D.H.;Kang, E.Y.
    • Journal of Korean Library and Information Science Society
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    • v.47 no.3
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    • pp.241-259
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    • 2016
  • This study attempts to investigate the current stage of collection development process in school libraries based on interviews with 20 teacher-librarians in school libraries. Library Collection is the primary element of a library and collection development is the starting point of librarians' duty. The researchers shed light on such issues as observed in collection development process in school libraries. Through the visits and observations such problems as aging book collections, lack of support of administrators, imbalance in subject distribution are identified.

The review of municipal solid waste management in Nigeria: the current trends

  • Iorhemen, Oliver T.;Alfa, Meshach I.;Onoja, Sam B.
    • Advances in environmental research
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    • v.5 no.4
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    • pp.237-249
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    • 2016
  • The management of municipal solid waste (MSW) is essential for every community; and, it is currently a major challenge in Nigeria. This paper provides an overview of the current MSW management trends in Nigeria and proposes new sustainable MSW management systems. Across Nigerian cities, MSW management is characterized by inefficient collection and transportation to disposal sites. Collection services do not reach some unplanned areas and slums due to poor street network. Even some planned areas are not reached by collection services. The informal sector contributes to waste collection, resource recovery and recycling; however, their activities are not recognized by the governments. Markets exist for recovered materials but more efforts need to be geared towards intensive recovery of materials and expansion of these markets. Despite the high proportion of putrescible matter in MSW, the only form of treatment commonly used currently is open burning for volume reduction. The high organic fraction presents a great opportunity for composting and anaerobic digestion. Ultimate disposal is currently done in open dumpsites. This needs to be upgraded to engineered landfills that are properly sited and adequately operated by well trained personnel. There is an emerging waste stream of concern, electronic-waste (e-waste), that requires urgent sustainable management as e-waste are currently co-disposed with other waste streams or burnt in the open posing detrimental health impacts.

Study on the current collection & vibration characteristics of the KHST's pantograph through trial running test up to 350km/h (한국형 고속열차의 350km/h 본선 주행시험을 통해 본 고속열차용 팬터그래프의 이선 특성과 동적 특성 고찰)

  • Mok, Jin-Yong;Park, Chan-Kyoung;Park, Choon-Soo;Kim, Ki-Hwan
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.05a
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    • pp.459-462
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    • 2005
  • The KHST(Korean High Speed Train) which had been developed by through 'G7-R&D project' has succeeded trial running test up to 350km/h on the Kyoung-Bu High Speed Track in December 16th, 2004. In order to evaluate the function and characteristics of KHST, various experimental conditions have been considered and conducted. In this paper, measured current collection characteristics and dynamic behaviors of KHST's pantograph are analysed over 300 to 350km/h in running speed of KHST. A measuring system developed and installed on the KHST for measuring the performance and mechanical characteristics of the KHST's pantograph was used for this trial running test and eventually, we proofed that KHST has a remarkable and stable current collection characteristics as it had been designed.

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A Study on the Improvement of Weeding in Academic Library Collection (대학도서관의 장서폐기 개선방안에 관한 연구)

  • Kim, Mi-Hye;Lee, Sang-Yong
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.22 no.2
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    • pp.249-278
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    • 2011
  • This study aimed at proposing an improvement for effective disposal in academic libraries. To this end, the study conducted a survey on literature, case studies and the current situation. This study selected the five foreign cases on academic libraries that open to the public regarding their disposal guidelines or operation cases on their Website. To determine the current state of disposal and needs for improvement in Korea, this study conducted a survey on the current situation in the libraries of Korean universities. Based on the above results, this study proposed the improvement plan for an effective disposal in academic libraries.

A Study on the Evaluation of Dynamic Characteristics of the Pantograph for the Korean High-Speed Train through 350km/h Trial Running Test (350km/h 본선 주행시험을 통한 한국형 고속열차 판토그라프의 접촉력 특성 평가 연구)

  • Lee Hi-Sung;Mok Jin-Yong
    • Journal of the Korean Society for Railway
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    • v.8 no.4
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    • pp.342-347
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    • 2005
  • The Korean High-Speed Train(HSR 350x) had been developed by through 'G7-R&D project' in 1996-2002, and has been testing and evaluating it's reliability on the high-speed line until now. A number of core equipments designed and developed by using domestic technologies were boarded on the HSR 350x. In order to verify the performance of HSR 350x and core equipments such as traction system, brake system and pantograph, sophisticated testing and evaluating procedures should be considered and applied. In this paper, the tested and analysed results about the dynamic characteristics of HSR 350x pantograph are introduced in a view point of the mean contact force and it's variation trend, criterion of current collection, and up-lifting of contact wire when the MSR 350x running up to 350 km/h. Through the test and evaluation, we verified that HSR 350x pantograph had an excellent current collection performance and good dynamic characteristics as it had been designed.