• Title/Summary/Keyword: 서지학

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Application of Exergy to the Analysis and Optimization of Heat Transfer Processes (열전달 과정의 해석과 최적화를 위한 엑서지의 응용)

  • Auracher H.
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.16 no.6
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    • pp.542-549
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    • 1987
  • 중요한 기본을 요약하고 엑서지를 에너지 변환에서 가장 중요한 기본 과정에 응용하는 열전달 문제를 제시한다. 열전달로 인한 엑서지 손실과 고온체, 저온체의 단열, 열교환기의 설계와 관련된 결과를 논의한다. 또한 비아제오트로픽(non-azeotropic) 혼합물을 응용한 열펌프 열교환기에서의 엑서지 절약에 대한 연구를 설명한다. 열전달과 압력강하로 인한 손실의 합인 총엑서지 손실이 최소로 되는 최적의 Reymolds 수가 존재함을 보여준다.

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A Study on Transition of Rice Culture Practices During Chosun Dynasty Through Old References - VII. Transition of Weeding Technique (주요(主要) 고농서(高農書)를 통(通)한 조선시대(朝鮮時代)의 도작기술(稻作技術) 전개(展開) 과정(過程) 연구(硏究) - VII. 중경(中耕) 제초(除草) 방식(方式)의 전환(轉換))

  • Guh, J.O.;Lee, S.K.;Lee, E.W.;Lee, H.S.
    • Korean Journal of Weed Science
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    • v.12 no.1
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    • pp.61-69
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    • 1992
  • Weed control in mid season of rice fields was systemized earlier in Korea than in Western Europe or China. The most representative method was pull out the weeds by hand followed by 'Seojibeob'(鋤地法 : method of hoeing) after draining. It was practiced 3 to 4 times to do extensively. Also, the purposes of transplanting arid direct seeding in rows were to manage weed problems effectively, which means that the development of cultural techniques is closely related to 'Seojibeob'(鋤地法). From the 17th century, techniques of deep plowing(because of principal : 'Simkyonginu'(深耨易耕 : Deep plowing make easy to hoe) and 'Hwanubeob'(火耨法 : derived from 'Hwakyong soonubeob) for effective weed management of waste lands were newly adopted and spreaded due to the situations ant that time. Thus, the practice of large-scale farming resulted from the adaptation of the techniques and methods described above. In the 18th to 19th century, the cultural methods, not much different from 'Seojibeob', were changed and the number of weeding was decreased. Especially, the techniques of dry seeding of rice were practiced by originating the ideal 'Seojibeob', in which water availability was improved in northern drought areas and also weed problems were easily managed. In addition, intensively large-scale farming showed weed management problems, so that 'Cheonilrok'(千一錄) by Woo Ha-young described the techniques of 'Banjongbeob'(反種法) or 'Hwanubeob' and in the end of the Chosun dynasty extensively large-scale farming was practiced by putting intensive and extensive techniques together. As the results, agricuitural productivity of Korea was increased 5 times by that time.

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A Bibliometric Analysis of The Korean Medical Journal (1930-1937) (조선의보(朝鮮醫報)의 계량서지학적 분석)

  • Seong, Heehye;Lee, Hye-Eun
    • Journal of the Korean Society for information Management
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    • v.38 no.3
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    • pp.239-262
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    • 2021
  • The Korean Medical Journal (1930-1937) is the first Korean medical journal published by The Korean Medical Association, which Korean doctors established to resist Japanese medical organizations during the Japanese colonial period. Using the bibliometric research method for The Korean Medical Journal, this study aimed to analyze the journal as follows. First, the study analyzed the subject trends of medical research by extracting the MeSH terms from the title of the articles. Next, the study identified characteristics of authors, type of language used in the papers, publication year and countries of references included in the papers. Also, this study identified the researchers' interests by analyzing the frequency of keywords appearing in the roundtable titles. As a result of the research, infections, pathological symptoms and diseases of the digestive system were studied most often. Most authors belonged to Severance Union Medical College, and internal medicine and general surgery departments had the most authors. Most of the titles and texts of the papers were written in Korean and Chinese characters in combination. Of the 131 papers, only 40 contained abstracts, 22 of which were English abstracts, the most number. The study analyzed 1,103 references in the papers and found that the authors mainly cited the latest journals published in Japan, Germany, and the United States. The topics discussed the most in the roundtable talks were tuberculosis, neurasthenia, and gonorrhea in order. This research examined the history of the publication of The Korean medical journal. Also, it showed that Korean doctors accumulated their academic medical research results and contributed to improving medical conditions.

Trends in Library and Information Science Research in Korea: Focused on Master's Theses and Doctoral Dissertations from 2001 to 2010 (한국 문헌정보학의 연구현황 분석 - 2001년∼2010년 발행 석.박사 학위논문을 중심으로 -)

  • Song, Jung-Sook
    • Journal of Korean Library and Information Science Society
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    • v.41 no.4
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    • pp.333-353
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    • 2010
  • This study analyzed trends in research activity as represented in master's theses and doctoral dissertations in the field of library and information science from 2001 to 2010. This study explores the year of publication, the university of publication, the department/major of publication, and subject by examining recent trends in theses and dissertations in the field of LIS, and comparing the results to previously reported by Sohn, Jung-Pyo, for the period of 1959 to 2002. Conclusions are 1) The finding of this study demonstrate that quantitative progress is being made in library and information science research in 2000s. 2) In comparison to previous study, average number of master's theses and doctoral dissertations per year increased four times. 3) The number of master's theses and doctoral dissertations on the subject area of information services were increased.

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A Study on Status and Necessity of the Curriculum for the Department of Libraries and Information Sciences in Korea (문헌정보학 교과과정에 대한 현황조사 및 인식조사 연구)

  • Hong, Hyun-Jin;Noh, Younghee;Kim, Dongseok
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.1
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    • pp.5-36
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    • 2021
  • This study attempted to present the direction of development of the curriculum of Library & Information Science by investigating and analyzing the current status of the curriculum of Library & Information Science in Korea and the perception of the necessity of each major subject. To this end, the curriculum of the Department of Library and Information Sciences nationwide was thoroughly investigated. Based on the subjects, a questionnaire survey was conducted for all professors of the Department of Library and Information Science on the degree of consent for required and elective subjects. As a result, first, the total number of courses opened in the Department of Library and Information Science has recently decreased. It was confirmed that the proportion of the required subjects and basic subjects decreased, and the proportion of elective subjects increased. Second, it was found that the importance and weight of informatics are constantly increasing, and there is a high demand for new subjects such as big data, programming, and data analysis. Third, the proportion of library management in all subjects is decreasing, but the necessity of detailed subjects is highly recognized. Fourth, it was confirmed that the proportion of bibliography was gradually decreasing. Fifth, although records management was not a required major subject, its weight increased as an elective subject, while language subjects showed almost no awareness of the necessity.

The Study on the Personal Praying Sentence in Personal Praying Script of Koryo Dynasty (고려 개인발원사경(個人發願寫經))

  • Kwon, Hi-Kyung
    • Journal of Korean Society of Archives and Records Management
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    • v.6 no.1
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    • pp.5-42
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    • 2006
  • The personal praying sentence in personal praying scripts of Koryo Dynasty should be very important source for study of Koryo buddhism's history as well as historics, bibliographics and art historics. Especially it would be good source for study of official position in Koryo Dynasty because in the personal praying scripts the prayers expressed their own official position when compared to the official positions presented in Bekguanji(all officer's magazine) in Koryosa(history of Koryo Dynasty). As the characteristic of script is presented in the contents of personal praying sentence, it would be remarkable source for study on the history of buddhism's thought. Through the personal praying sentence it is possible to make clear the hopes of donor and high monks who were the key members for writing praying script. Also study on the personal praying sentences in Koryo scripts would be helpful for understanding the profile of society of Koryo Dynasty.

Evaluation of Korean Medical Journals: a Bibliometric Analysis (서지정보를 이용한 한국 의학학술지 평가)

  • 이춘실
    • Journal of the Korean Society for information Management
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    • v.17 no.1
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    • pp.49-65
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    • 2000
  • The availability and use (citedness) of Korean medical journals are measured based on the bibliometric data of 82 journals evaluated by the Korean Association of Medical Journal Editors between 1997 and 1999. A Korean medical journal is held on the average by one half of Korean medical libraries investigated. Only 10 journals (12.2%) are covered in any of 36 abstract and index databases in the field of medicine searchable through DIALOG. The journal self-citation rate is 3.402%. 1.092% of papers are cited at least once by SCI journal papers within 3 years after publication. The average SCI impact factor of Korean medical journals is 0.111, However, the impact factor of MEDLINE or SCISearch journals is 10 times higher. The results show that the Korean medical journals are not easily available domestically and internationally. They are hardly cited by Korean colleagues or by foreign scholars either.

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An Study of Demand Forecasting Methodology Based on Hype Cycle: The Case Study on Hybrid Cars (기대주기 분석을 활용한 수요예측 연구: 하이브리드 자동차의 사례를 중심으로)

  • Jun, Seung-Pyo
    • Journal of Korea Technology Innovation Society
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    • v.14 no.spc
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    • pp.1232-1255
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    • 2011
  • This paper proposes a model for demand forecasting that will require less effort in the process of utilizing the new product diffusion model while also allowing for more objective and timely application. Drawing upon the theoretical foundation provided by the hype cycle model and the consumer adoption model, this proposed model makes it possible to estimate the maximum market potential based solely on bibliometrics and the scale of the early market, thereby presenting a method for supplying the major parameters required for the Bass model. Upon analyzing the forecasting ability of this model by applying it to the case of the hybrid car market, the model was confirmed to be capable of successfully forecasting results similar in scale to the market potential deduced through various other objective sources of information, thus underscoring the potentials of utilizing this model. Moreover, even the hype cycle or the life cycle can be estimated through direct linkage with bibliometrics and the Bass model. In cases where the hype cycles of other models have been observed, the forecasting ability of this model was demonstrated through simple case studies. Since this proposed model yields a maximum market potential that can also be applied directly to other growth curve models, the model presented in the following paper provides new directions in the endeavor to forecast technology diffusion and identify promising technologies through bibliometrics.

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A Model for the Development and Operation of Research Evaluation Services in Academic Libraries in Korea (국내 대학도서관 연구성과 서비스 개발 및 운영 모형 연구)

  • Kim, Soojung;Lee, Jae Yun;Lee, Ji-Won
    • Journal of the Korean Society for information Management
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    • v.38 no.3
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    • pp.287-309
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    • 2021
  • This study describes the introduction, growth, current practices and future plans of research evaluation services performed in domestic academic libraries, with a view to informing other libraries considering similar endeavours. To that end, in-depth interviews were conducted with four librarians from academic libraries leading in research evaluation services. The contents of the interviews were grouped into five categories including growth, management, and services. The study found that their research evaluation services were launched around 2010 by demands of members of a university or as a library's initiative to expand the existing services for the purpose of enhancing the university's research competitiveness. The research evaluation services have been strengthened by extending the service scope and improving related systems. Also, the study suggests a comprehensive model that can guide the development and operation of research evaluation services.

Bibliometric Analysis of the Changes of Korean LIS Journals' States with Journal Coupling Analysis (저널 결합 분석을 이용한 한국 문헌정보학 저널의 입지 변화에 대한 계량서지적 분석)

  • Lee, Jae Yun;Choi, Sanghee
    • Journal of the Korean Society for information Management
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    • v.34 no.2
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    • pp.81-95
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    • 2017
  • This study examined two characteristics of library and information science (LIS) journals in Korea through analysis of journal coupling with common authors. This study also illustrated the trend of Korean LIS research in the recent decade. The notable change is that record management and archival studies settle in LIS domain as a major research area. We introduced two indicators, Publishing Preference Index (PPI) and Researcher Attraction Index (RAI), based on the degree of common authors among journals. Both indicators revealed notable changes in author coupling, including reversal of PPIs in some journals, which can be interpreted as proof of changes in their author groups. The RAI analysis, which measured the degree of journals' attractiveness to Korean LIS researchers and author sharing between two journals, illustrated the journals' states in a domain; this result can help find both an isolated journal and strongly bonded journals in the specific domain. Journal coupling with common authors introduced in this study proved to be an effective investigative method for illustrating journals' states in a specified domain as well as a multidisciplinary area.