• Title/Summary/Keyword: 서지학

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A Study on the Behavior Characteristics of Tsunami Damper for the Nuclear Power Plant (원자력 발전소용 쓰나미 댐퍼의 거동특성에 관한 연구)

  • Seo, Ji-Hwan;Kim, Byung-Tak;Chin, Do-Hun
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.13 no.4
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    • pp.106-112
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    • 2014
  • This study presents the mechanical behavior of a ventilating window (a tsunami damper) on the building wall of a nuclear power plant. The window, which is under development, is used to ventilate a machinery room and the building under normal conditions, but it also provides a safety barrier for critical equipment against a tsunami caused by an earthquake. A finite element analysis was conducted to investigate the deflection and the stress distribution of the window under given loading conditions. With symmetry, a one-quarter portion of one window was modeled, and the pressure due to a great tide is assumed to be 7 bar. A structural analysis of the assembled frame, composed of a blade and casing, was also conducted using contact conditions to find the stress and strain configurations caused by the applied pressure.

Linking and Sharing EAC Authority Records Using RAMP: Focusing on the Records of "Park, Kyung-ni" (RAMP를 활용한 EAC 기반 전거레코드의 연계 및 공유 관한 연구 - 박경리의 전거레코드를 중심으로 -)

  • Park, Zi-Young
    • Journal of Korean Society of Archives and Records Management
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    • v.14 no.2
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    • pp.61-82
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    • 2014
  • Archival authority records support users in accessing and understanding archival information. The creator of the archives, on the other hand, is also the creator of other informative materials, including published products, and the users want to access information in a seamless manner. Moreover, the authority record has common attributes with the authority records for bibliographic control as well as its distinctive characteristics. Therefore, this research aims to link legacy authority records for constructing and expanding archival authority records and provide the expanded archival records to the Web environment, including Wikipedia, for data sharing. Finally, some issues and suggestions for further research based on the findings that resulted from experimental linking and sharing are discussed.

The quality Comparison of Uncleaned Rice Vinegar by Two Stages Fermentation with Commercial Uncleaned Rice Vinegar (2단계 발효에 의한 현미식초와 시판현미식초의 품질 비교)

  • 정용진;서지형;정소형;신승렬;김광수
    • Food Science and Preservation
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    • v.5 no.4
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    • pp.374-379
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    • 1998
  • A vinegar was prepared from uncleaned rice by two step fermentation, alcohol fermentation followed by acetic acid fermentation. The contents of alcohol reached to 10.8% during the alcohol fermentation of uncleaned rice with nuruk, and acidity reached to 5.78% during the acetic acid fermentation. Acidity and pH of vinegar of two step fermentation were higher than those of commercial vinegars. 'L' value(Light) of the vinegar was lower, 'a' and 'b' value were higher than those of commercial vinegars. The contents of acetic acid, malic acid, citirc acid and tartaric acid were hish in organic acid of vinegars. The content of each ofganic acid in vinegars was remarkably different. The content of free amino acids was 2199.7${\mu}\ell$/ml in the vinegar produced by two step fermentation which is higher than that of others.

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Monitoring Characteristics of Protease Isolated from Squid Viscera (오징어 내장에서 분리한 Protease 특성의 모니터링)

  • 서지형;정용진;이기동;이명희
    • Journal of the East Asian Society of Dietary Life
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    • v.9 no.2
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    • pp.195-199
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    • 1999
  • The characteristics of protease from squid viscera was investigated by response surface methodology(RSM) programmed with reaction temperature and pH. The optimal temperature and pH for the protease were 41.75$^{\circ}C$ and pH 6.02 respectively. Also its activity was 78.65 unit at the optimal condition and $R^2$ of the model was 0.8461 (P<0.1). The protease activity was decreased by N $a^{+}$ and increased by $Mg^{2+}$ But $K^{+}$ did not affect the protease. The Km value against casein was determined to be 0.12 mM by Line-weaver-Burk plot.lot.

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A Robust Frequency-Domain Multi-Reference Narrowband Adaptive Noise Canceller (여러 개의 참고입력 신호를 사용하는 강인한 주파수 영역 협대역 잡음 제거기)

  • Kim, Seong-Woo;Seo, Ji-Ho;Ryu, Young-Woo;Park, Young-Cheol;Youn, Dae Hee
    • The Journal of the Acoustical Society of Korea
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    • v.34 no.2
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    • pp.163-170
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    • 2015
  • In this paper, it is shown that the performance of the frequency-domain multi-reference narrowband noise canceller is determined by the narrowband component to the broadband disturbance power ratio in the reference signals. To overcome this problem, a new narrowband ANC is proposed, where the update of the adaptive filter is determined based on SNR of the reference inputs being measured using the magnitude squared coherence (MSC) between the primary and the reference signals. Simulation results show that the proposed ANC has superior performance over the conventional one.

The Publication and Bibliographical Characteristics of Hyangyak Jipseongbang During Early Joseon Period (조선전기(朝鮮前期) 『향약집성방(鄕藥集成方)』의 간행과 서지학적 특징)

  • Ok, Young-Jung
    • The Journal of Korean Medical History
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    • v.29 no.1
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    • pp.55-69
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    • 2016
  • This study examined the bibliographical characteristics of Hyangyak Jipseongbang that was compiled in the $15^{th}$ century (1433) and continued to publish throughout the early period of Joseon Dynasty. Various existing records and the early Joseon printed edition of Hyangyak Jipseongbang stored in a domestic Sancheong Korean Medicine Museum were reviewed from 3 perspectives as follows. First, it is the bibliographical system approach to Hyangyak Jipseongbang for some circumstances related to its compilation and publication. Second, it is the significance in terms of printing history through the analysis of bibliographical characteristics and the status of the remaining Hyangyak Jipseongbang. Particularly, the period of publication is an important factor to determine the value of a book. In this respect, most of the extant early-Joseon editions of Hyangyak Jipseongbang seem to have been published during the ruling years of King Sung Jong. Those editions are expected to have distinctive meaning from other copied editions of the $17^{th}$ century. Last, it is bibliographical orignal analysis of Hyangyak Jipseongbang. This study reviewed the contents and composition of Vol. 49 through 51 of Hyangyak Jipseongbang stored in Sancheong Korean Medicine Museum in an attempt to help understand the textual bibliography and composition system of exhibiting editions.

The Recent Trends and Controversy over Outsourcing of Cataloging in Academic Libraries (대학도서관 편목 업무 외주의 동향과 논쟁)

  • Yoon, Cheong-Ok
    • Journal of the Korean Society for Library and Information Science
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    • v.38 no.2
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    • pp.119-136
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    • 2004
  • The purpose of this study is to analyze cases of several academic libraries, both in Korea and other countries, which have outsourced part or all of cataloging operations and examine current trends and controversy over outsourcing. Contrary to expectations of reduced expenses and increased efficiency in cataloging, outsourcing often results in bibliographic records of low quality which require additional costs to correct errors and maintain consistency and accuracy of records, and therefore, fails to reach the goal. Due to the absence of high quality bibliographic utilities, union catalogs, and authority databases, and lack of expertise in cataloging among outsourcing service providers, it seems that outsourcing is not currently an appropriate tactic for cataloging in academic libraries in Korea.

A Study on Historical Trends of the Research for Reference Sevice in Korea (국내 참고봉사 연구의 통시적 변천에 관한 연구)

  • Bae, Soon-Ja
    • Journal of the Korean Society for Library and Information Science
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    • v.36 no.1
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    • pp.111-125
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    • 2002
  • The purpose of this study is to know the trends of research of reference service in Korea before 21th century from beginning. After analyzing of representative subject bibliographies , domestic research of this field can be devided into four chronical stages; the beginning stage in 1950’s, the changing stage in 1970’s, the developing stage in 1980’s and professional stage in 1990’s. And found out both domestic and internaional research seemed to have focused on the service theory, however there have been some differences in their lower subjects.

Quality Evaluation and Management of a Shared Cataloging DB: the Case of KERIS UNICAT DB (공동목록 DB의 품질평가와 품질관리: KERIS의 종합목록 DB를 중심으로)

  • Lee, Jae-Whoan
    • Journal of the Korean Society for Library and Information Science
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    • v.36 no.1
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    • pp.61-90
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    • 2002
  • This study intends to evaluate the quality of the KERIS UNICAT DB, and to suggest both theoretical and practical methods for the quality improvement of the DB. To the end. this study developed a quality evaluation model and verified the quality of the UNICAT DB in a comprehensive way, Emphasis was on analyzing the factors causing such inferior and substandard bibliographic records in the UNICAT DB. Also suggested are the management strategies and substantial guidelines to improve the quality of the UNICAT DB.

Journal Co-citation Analysis for Library Services in Pharmaceutics (약학 분야 학술정보서비스를 위한 학술지 동시인용 분석)

  • Jo, Seon-Rye;Lee, Jae-Yun
    • Journal of Information Management
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    • v.43 no.1
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    • pp.159-185
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    • 2012
  • The purposes of this study were to identify core journals for pharmaceutical researches in Korea and to examine the research domains of Korean pharmaceutical researchers. Journal citation frequency analysis and journal co-citation analysis were performed on the research papers of Korean pharmaceutical researchers. Korean researchers' citation data were gathered from SCOPUS for foreign journals and KSCD for domestic journals. 116 core journals were identified through citation frequency analysis and journal relationships were suggested as a pathfinder network of journals. Factor analysis on journal correlation matrix resulted in 18 subject domains and related journal lists were also given.