• Title/Summary/Keyword: 서지분석

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A Preliminary Study for Revision of KORMARC Bibliographic Format (KORMARC 통합서지용 개정을 위한 기초연구)

  • Rho, Jee-Hyun;Lee, Mihwa
    • Journal of Korean Library and Information Science Society
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    • v.53 no.1
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    • pp.149-170
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    • 2022
  • This study aims to present a revised draft of KORMARC bibliographic format that was first revised in 2014. To this end, data collection and analysis methods are as follows. First, the opinions of cataloging working groups for revision of KORMARC including the National Library of Korea (NLK) and KERIS were collected and analyzed. Second, work guidelines used in libraries or cooperative catalog systems were analyzed. Third, by comparing MARC21 update No.32 (June 2021) with the KORMARC bibliographic format, elements that need to be reflected in the KORMARC revision were derived. Finally, issues that have been raised in previous studies or that require further discussion were examined. Based on these analysis results, an outlines of the extension and deletion of KORMARC fields, subfields, and indicators, and supplementation of application guidelines and examples were derived. The final revision directions were finalized after collecting expert opinions, the working group reviews, and comprehensive opinions from the library community.

Engineering of Grounding System Design for Protection of Surge & Noise (노이즈 및 서지제거를 위한 접지시스템 설계 엔지니어링)

  • Cho, D.H.;Lee, K.S.;Jung, C.H.;You, C.H.;Park, W.H.
    • Proceedings of the KIEE Conference
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    • 2007.04b
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    • pp.5-9
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    • 2007
  • 본 논문에서는 실제 운용 중인 현장에서 노이즈 및 서지 신호를 측정 분석하여, 그 결과를 토대로 이들 노이즈 신호를 제거할 수 있는 접지시스템 및 내부 보호 설비를 제안하여 시공하였다. 실제 운용 중인 설비 내에 유도 흑은 침입하는 전원 계통의 sag, Swell, Transient, 서지 그리고 고조파와 같은 노이즈와 접지시스템을 통해 유입되는 다양한 노이즈 신호를 차단하여 빠르고 안전하게 제거하는 방안을 연구하였다. 이를 위해 운용 중인 설비의 다양한 노이즈 신호를 실측하였고, 실측된 결과로부터 전달 및 침입 경로를 예측하여, 기존 접지 구성 및 내부 배선의 문제점의 개선하고 노이즈 및 서지의 실제적 차단을 위한 접지시스템과 내부 보호 설비를 설계 제안하였다. 또한 설계 시뮬레이션 결과와 현장 시공 결과를 비교하여 제안된 설비의 성능을 확인하였고, 시공 후 설비 운용 중에 노이즈 및 서지 신호를 재 측정하여 기존 설비 운용시 측정했던 결과를 비교 분석하여 제안 보호 설비의 개선된 성능을 최종 확인하였다.

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A Study on Standards for Bibliographic Data Elements of the Articles in Serials (연속간행물 기사 DB의 서지데이터요소 표준화 연구)

  • Han, Jong-Yup
    • Journal of the Korean Society for Library and Information Science
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    • v.34 no.3
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    • pp.109-132
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    • 2000
  • With purpose of improving library technology, one of the core elements of library automation technology, are suggested. The results of the study revealed article database standards briefly described as follows: First, database concerning articles in serials are generated from previous indices & abstracts journals. Second, bibliographic elements of ten representative domestic and international bibliographic database systems showed many dissimilar descriptive field types, as well as differences in entry orders and details. Third, database standards or guidelines were non-existent in domestic and international bibliographic database agencies, and different format have been adapted among those agencies. It is strongly recommended that all library should create a plan for adapting internationally standards in data input format as well as output format. Fourth, conforming with ISO 690 bibliographic descriptions, their ten components will be adapted as the basic framework for building the database and appropriately select additional seven data components of total 17 categories.

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A study on next generation surge protection system from telecommunication system (정보통신설비의 차세대 뇌서지 보호대책에 관한 연구)

  • Kim, Dong-Jin;Han, Nam-Hyun;Kim, Kwang-Nan
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2009.05a
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    • pp.285-288
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    • 2009
  • WAN을 기반으로 하는 초고속 정보통신망이 구축되면서 컴퓨터를 기초로 하는 정보기술에 대한 의존도가 증가하고 있다. 그에 따라 컴퓨터를 비롯한 초고속 정보통신 설비 사고 가운데 뇌 서지에 기인하는 비중이 늘어나고 있다. 정보화 시스템의 일시적 기능 정지나 고장은 그 파급효과가 대단히 크고 경제적 손실이 막대하여 안정적인 서지 보호대책의 필요성이 높아지고 있다. 이에 뇌 보호 관련 규정이 KS C IEC 62305로 개정되면서 선택사항에 불과했던 내부 뇌 보호 시스템인 서지보호기 (Surge Protective Device 이하 SPD)가 필수사항이 되었다. 하지만 약 30%가 SPD 설치 후에도 서지로 인한 피해를 입고 있는 것이 현실이다. 이는 설치 후에도 SPD가 제대로 작동하는지의 동작 상태와 경년에 따른 SPD의 특성 변화를 알 수 없어 문제 발생 시 정확한 원인 분석이 불가능하여 효과적인 대책수립이 어렵기 때문이다. 따라서 기존 SPD 기술의 한계점을 극복하여 유입되는 외부 서지의 특성을 파악하고 고장 예측이 가능한 차세대 뇌서지 보호대책을 고려하여야 한다.

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A Study on Intellectual Structure Using Author Co-citation Analysis and Author Bibliographic Coupling Analysis in the Field of Social Welfare Science (저자동시인용분석과 저자서지결합분석에 의한 지적 구조 분석: 사회복지학 분야를 중심으로)

  • Kim, Hee-Jeon;Cho, Hyun-Yang
    • Journal of the Korean Society for information Management
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    • v.27 no.3
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    • pp.283-306
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    • 2010
  • This study intended to make new suggestions by clarifying usefulness of analysis methodology for the intellectual structure of disciplines, which combines author co-citation analysis and author bibliographic coupling analysis. It also aimed to identify the recent research trend and key researchers recently doing research activities actively as well as the intellectual structure in the field of social welfare. It was found to be more efficient to conduct both author co-citation analysis and author bibliographic coupling analysis in order to identify traditional sub-areas of disciplinary subject or the research trend of actual researchers in examining the intellectual structure of a specific discipline.

Design on a Dual Impulse Surge Protector for the Power over Ethernet Devices (PoE(Power Over Ethernet)에서 임펄스성 서지보호 이중화 장치 설계)

  • Jin, Jong-Ho;Kim, Young-Jin;Rhee, Young-Chul
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.8
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    • pp.927-934
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    • 2015
  • In this paper, in order to prevent impulse surge PoE(Power Over Ethernet) communications error caused by natural phenomenon in industrial sites, countermeasure design of impulse surge of PoE communications equipment is suggested by designing dual impulse surge protection circuit. In order to analyze characteristic of impulse surge noise signal, surge generating device which meet international standard IEC 61000-4-5 is invented. And this device shows that surge signal is weakened by designing dual PoE power supply protection circuit by connecting surge generating device to the PoE data transfer line.

An Overview of Research Trends in 'Aesthetic Science-Education': Focused on Bibliographic Analysis Using Bibliometrix Package in the R Program (미적 과학교육 연구 동향 분석 -R 프로그램의 Bibliometrix 패키지를 활용한 상세 서지분석을 중심으로-)

  • Kyungsuk, Bae;Jun-Young, Oh;Jaehyeok, Choi;Yejin, Moon;Yeon-A, Son
    • Journal of The Korean Association For Science Education
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    • v.42 no.5
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    • pp.543-555
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    • 2022
  • This study aims to identify the trends in 'Aesthetic Science-Education' research through bibliographic analysis and provide future implications for research in this field. To this research, 100 studies were extracted using the search function of the Web of Science provided by Clarivate Analytics. Detailed bibliometrics was analyzed using the Bibliometrix package of the R program. As a result of the analysis, the average number of papers increased from 1993 to 2022, and academic journals in which related papers were published were evenly distributed locally. As a result of keyword analysis, papers with top citations, author collaboration networks, and literature co-citation networks, Aesthetic Science-Education could be classified as inducing aesthetic experience by integrating art in science education, and categories using 'formalist aesthetic' and 'emotional response'. The implications derived from this study are as follows: first, the aesthetic aspects of science should be actively studied to emphasize 'Agency' and 'Active Learning' in future science education. Second, it is necessary to develop a new approach to science education by further utilizing the 'formalist aesthetic' of science in science education. Third, the aesthetic aspect of science can change the perception of the Nature of Science of teachers, pre-service science teachers, and students. Fourth, it is necessary to discover implications for utilizing aesthetic aspects in science education through extensive research on the aesthetic aspects of science for teachers, students, and pre-service teachers. This study is meaningful because it provides an overview of the 'Aesthetic Science-Education' research to realize the above implications.

Construction of LRM-Based Bibliographic Structure for Describing Old Materials (고문헌 기술을 위한 LRM 기반 서지구조 구축: 에이전트, 장소, 시간 개체를 중심으로)

  • Minjung Park;Seungmin Lee
    • Journal of the Korean Society for information Management
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    • v.40 no.3
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    • pp.197-219
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    • 2023
  • The cataloging rules of AACR families and bibliographic structure, which are broadly used in describing resources, show limitations in reflecting the unique bibliographic characteristics of Korean old materials. Thus this research proposed a bibliographic structure optimized to the unique bibliographic characteristics of Korean old materials by establishing bibliographic relationships between bibliographic entities based on the FRBR LRM conceptual model. The bibliographic relationships should be established in the way of connecting related materials in the bibliographic structure. These relationships should sufficiently reflect the bibliographic characteristics of the materials, physical variations, and content variations. Through this structure, the bibliographic description can be separated and integrated into the bibliograhpic unit by applying LRM conceptual model. By using the proposed structure, the organization, management, and utilization of Korean old materials can be more efficient. Also, it can provide a new bibliographic environment that can be the foundation of creating BIBFRAME records for Korean old materials.

Analysis of Switching Surge by Recloser Operation in Distribution System (배전계통에서 재폐로 동작으로 인한 개폐서지 영향 분석)

  • Lim, Kyong-Sub;Yeo, Sang-Min;Seo, Hun-Chul;Seong, No-Kyu
    • Proceedings of the KIEE Conference
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    • 2008.11a
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    • pp.315-317
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    • 2008
  • 배전계통에서 발생한 사고의 80% 이상은 순간고장이다. 따라서, 배전계통에서 재폐로는 계통의 회복 및 신뢰도 향상을 위하여 반드시 필요한 사항이다. 그렇지만, 재폐로 순간 차단기의 동작으로 인하여 개폐서지가 발생할 수 있다 따라서 본 논문에서는 EMTP를 이용하여 고장 발생 시 차단기의 재폐로 동작을 모의하여 재폐로 동작 시 발생하는 개폐서지를 분석하였다.

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