• 제목/요약/키워드: analysis research

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계량서지학적 분석과 키워드 기반의 메타 분석을 통한 수산경영학 관련연구의 분석 (A Bibliometric Analysis and Keyword-based Meta-Analysis of Fisheries Management Research)

  • 이동호;정이상
    • 수산경영론집
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    • 제38권2호
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    • pp.1-24
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    • 2007
  • The improvement and richness of research in a particular domain are fundamentally based on their own various research topics and scientific or systematic research methodology. Especially considering fisheries business administration as a branch of business administration, the interdisciplinary concept will be a important factor in the research of fisheries business administration. This study analyzes fisheries business administration research through bibliometric analysis and meta-analysis to examine meta-data including research trends, researcher characteristics, and keywords. The 225 source articles are all papers published from 1990 to 2006 in the Journal of Fisheries Business Administration Society of Korea. Comparing previous research from the 80s, the major areas of Korean fisheries business administration research have changed and the rate of co-researched papers has also increased. In keyword-based meta-analysis, the topics of recent research are well balanced and diversified but some structural and editorial problems still remain. The result from meta-data and bibliometric information gathered in this study will help create guidelines for carrying out further rigorous research and enhancing the quality of research in fisheries business administration.

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한국조리학회지에 게재된 학술적 연구의 통계적 기법 분석 (Analysis of the Statistical Methods used in Scientific Research published in The Korean Journal of Culinary Research)

  • 나영아;나태균
    • 한국조리학회지
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    • 제21권6호
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    • pp.49-62
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    • 2015
  • 본 연구의 목적은 외식관련 학술적 연구들에 적용된 통계적 기법의 사용 현황 및 일부 통계적 기법의 잘못된 사용에 대해 고찰해 보고자 하였다. 이러한 목적을 달성하고자 본 연구에서는 2010년부터 2013년도까지 총 4년간 한국조리학회지에 게재된 총 415편 중 자연과학적 연구, 질적 연구, 영문으로 작성된 연구 등을 제외한 총 251편의 학술적 연구를 대상으로 내용분석(content analysis)을 실시하였다. 연구의 결과를 요약하면 다음과 같다. 첫째, 사회과학 연구방법을 사용한 279편의 학술적 연구 중 269편이 양적 연구방법을 사용하였으며 10편의 학술적 연구만이 질적 연구방법을 사용한 것으로 조사되었다. 둘째, 전체 251편의 학술적 연구 중 20편(8.0%)의 연구는 통계방법 또는 통계 프로그램의 이름 등이 명시되어 있지 않은 것으로 나타났다. 셋째, 분석 기간 내에 한국조리학회지에 게재된 학술적 연구의 자료 분석에 가장 많이 사용된 통계 패키지는 SPSS 프로그램으로 나타났다(90.8%). 넷째, 분석대상 전체 251 편의 학술적 연구에 사용된 통계적 기법의 사용빈도를 살펴보면 빈도분석, 신뢰도분석, 탐색적 요인분석, 상관관계 분석, 회귀분석, 구조방정식모형, 확인적 요인분석, T-test, 분산분석, 교차분석 등이 주로 사용되고 있는 것으로 나타났다. 향후 연구에서는 각각의 통계적 기법에서 찾아볼 수 있는 통계적 오류에 대한 검증과 이를 통해 통계적 오류를 최소화시킬 방안이 제시되어야 할 것이다.

회귀분석에 의한 TOC 농도 추정 - 오수천 유역을 대상으로 - (Application of Regression Analysis Model to TOC Concentration Estimation - Osu Stream Watershed -)

  • 박진환;문명진;한성욱;이형진;정수정;황경섭;김갑순
    • 환경영향평가
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    • 제23권3호
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    • pp.187-196
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    • 2014
  • The objective of this study is to evaluate and analyze Osu stream watershed water environment system. The data were collected from January 2009 to December 2011 including water temperature, pH, DO, EC, BOD, COD, TOC, SS, T-N, T-P and discharge. The data were used for principle component analysis and factor analysis. The results are as followes. The primary factors obtained from both the principal component analysis and the factor analysis were BOD, COD, TOC, SS and T-P. Once principal component analysis and factor analysis have been performed with the collected data and then the results will be applied to both simple regression model and multiple regression model. The regression model was developed into case 1 using concentrations of water quality parameters and case 2 using delivery loads. The value of the coefficient of determination on case 1 fell between 0.629 and 0.866; this was lower than case 2 value which fell between 0.946 and 0.998. Therefore, case 2 model would be a reliable choice.The coefficient of determination between the estimated figure using data which was developed to the regression model in 2012 and the actual measurement value was over 0.6, overall. It can be safely deduced that the correlation value between the two findings was high. The same model can be applied to get TOC concentrations in future.

Topic Analysis of Scholarly Communication Research

  • Ji, Hyun;Cha, Mikyeong
    • Journal of Information Science Theory and Practice
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    • 제9권2호
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    • pp.47-65
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    • 2021
  • This study aims to identify specific topics, trends, and structural characteristics of scholarly communication research, based on 1,435 articles published from 1970 to 2018 in the Scopus database through Latent Dirichlet Allocation topic modeling, serial analysis, and network analysis. Topic modeling, time series analysis, and network analysis were used to analyze specific topics, trends, and structures, respectively. The results were summarized into three sets as follows. First, the specific topics of scholarly communication research were nineteen in number, including research resource management and research data, and their research proportion is even. Second, as a result of the time series analysis, there are three upward trending topics: Topic 6: Open Access Publishing, Topic 7: Green Open Access, Topic 19: Informal Communication, and two downward trending topics: Topic 11: Researcher Network and Topic 12: Electronic Journal. Third, the network analysis results indicated that high mean profile association topics were related to the institution, and topics with high triangle betweenness centrality, such as Topic 14: Research Resource Management, shared the citation context. Also, through cluster analysis using parallel nearest neighbor clustering, six clusters connected with different concepts were identified.

학문 목적 한국어교육의 연구 유형 분류와 연구 방법의 동향 분석 (A Classification of Research Types and Trend Analysis of Research Methods in Korean for Academic Purposes)

  • 나원주;주현하;김영규
    • 한국어교육
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    • 제28권1호
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    • pp.79-111
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    • 2017
  • This study is a trend analysis study that discusses the current status and directions of research methods of KAP research. The existing trend ana lysis studies dealing with research methods have problems in that the classification criteria of the studies used are rough and different from each other, rendering comparison between studies being difficult, and do not comprehensively cover research methods of diversified KAP research. Therefore, this study examined the research methods of KAP research from a critical point of view and suggested a set of classification criteria and an analysis framework that can be used consistently in classification and analysis of future KAP research methods. Based on the theoretical background of second language studies and applied linguistics, this study revised and supplemented Brown (2015)'s research method types and selected 289 journals and theses/dissertations from 2012 to 2016 and classified them into a new analysis framework. The primary and secondary studies, which are the major categories, were 219 and 70, respectively, so it was confirmed that there were much more primary studies. The primary studies then were subdivided into 128 qualitative research studies, 142 survey research studies, and 23 quantitative research studies, pointing to the trend that survey and qualitative research methods were preferred. In the qualitative research approaches, there were 21 action research studies, which were used the most. In addition, such qualitative research approaches as case studies and narrative inquiries which were difficult to find in the past, have gradually increased, confirming that the diversification of research methods is becoming common. However, there were still many studies that did not explicitly put forward research questions and there were many studies that did not report reliability and effect sizes in quantitative research. Of the 23 quantitative studies, only 50% reported reliability, and only three reported effect sizes. In order to enable systematic reviews (meta-analysis) of quantitative research and expect quality improvement of research in future KAP research, reporting of quantitative research should be done more systematically. This study is meaningful in that a systematic and detailed analysis framework was proposed to classify various research methods in the future and that the problems and directions for improvement of the KAP research methods were discussed through the analysis of the research trend of the KAP studies for the last 5 years.

Research Progress and Development of Technology in Tourism Research: A Bibliometric Analysis

  • Zhong, Lina;Zhu, Mengyao;Sun, Sunny;Law, Rob
    • Journal of Smart Tourism
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    • 제1권2호
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    • pp.3-12
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    • 2021
  • The interaction between technology and tourism has been a dynamic research area recently. This study aims to review the progress and development of technology in tourism research via a bibliometric analysis. We derive the source data from the Web of Science (WoS) core collection and use CiteSpace for bibliometric analysis, including countries, institutions, authors, categories, references, and keywords. The analysis results are as follows: i) The number of published articles on the role of technology in tourism has increased in recent years. ii) Technology-related articles in tourism are abundant in Tourism Management, Journal of Travel Research, and Annals of Tourism Research. iii) The countries with the most contributions are China, the US, and the UK. The most active institutions are the Hong Kong Polytechnic University, University of Central Florida, Bournemouth University, University of Queensland, and Kyung Hee University. iv) The reference analysis results identify eight extensively researched topics from the most cited papers, and the keyword burst analysis results present an emerging trend. This study identifies the effect and development of technology in tourism research. Our findings provide implications for researchers about the current research focus of technology and the future research trend of technology in the tourism field.

An Analysis of Research Trends in Mobile Learning through Comparison between Korea and China using Semantic Network Analysis

  • NI, Dan;LEE, Jiyon
    • Educational Technology International
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    • 제20권2호
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    • pp.169-194
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    • 2019
  • This study aims to compare and analyze the trends of research on mobile learning conducted in Korea and China to suggest future directions and multifaceted subject areas in its study field. To achieve this purpose, 620 Chinese papers from CNKI (CSSCI and CSCD) database and 205 Korean papers from RISS database (KCI and KCI candidate) published between 2009 and 2018 were selected to be analyzed through applying the frequency analysis and visualized semantic network analysis. The criteria for analysis used in this study are four types: publication years, research subjects, research methods, and keywords. The results of this study are as follows. Firstly, in relation to the year of publication, Korea entered the peak of mobile learning research in 2016 (33 papers), and China reached high publications (94 papers) in 2017. Secondly, with regard to the research subjects, the most frequently studied subjects in Korea and China were targeted to college students, followed by general adult groups. Thirdly, in terms of research methods, quantitative research accounted for a high proportion in Korea, but in China, literature research showed a high frequency. Fourthly, the high frequency keywords appearing in mobile learning research of the two countries were mainly reflected in language learning. Based on the findings, several directions of future research for both countries were suggested.

Thermal Analysis of a High Speed Induction Motor Considering Harmonic Loss Distribution

  • Duong, Minh-Trung;Chun, Yon-Do;Park, Byoung-Gun;Kim, Dong-Jun;Choi, Jae-Hak;Han, Pil-Wan
    • Journal of Electrical Engineering and Technology
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    • 제12권4호
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    • pp.1503-1510
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    • 2017
  • In this paper, a thermal analysis of a high speed induction motor with a PWM voltage source was performed by considering harmonic loss components. The electromagnetic analysis of the high speed induction motor was conducted using the time-varying finite element method, and its thermal characteristics were carried out using the lump-circuit method. Harmonic losses from tests in the high frequency region were divided into core loss and conductor loss components using various ratios, in order to determine the loss distributions for the thermal analysis. The results from both the calculations and experiment were validated using a high speed induction motor prototype operating at 20,000rpm.

`화폐 태도' 관련 연구동향 분석 (Trend Analysis about 'The Attitude towards Money')

  • 유수현;문숙재
    • 가정과삶의질연구
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    • 제28권5호
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    • pp.197-208
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    • 2010
  • This study examines the 'Attitude towards Money' research trends and suggests future research issues and implications through a contents analysis. To accomplish the study object, 4 analysis categories were selected based on reference study to review the research subject, methods of data collection, research objects, and an analysis of the methods, found in 31 articles in journals and dissertations from 1996 to 2009. The were made in early 1990, (an increase in related research since 2000); however, the object of study is too limited, with an overemphasis on research methods and quantitative research methods. The research method of most articles was mainly limited to the quantitative study. Based on the results, research directions and research limitations were suggested for future leisure research.