• Journal of Korea Society of Industrial Information Systems
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• v.25 no.1
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• pp.41-53
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• 2020

Supply chain management (SCM) became a critical success factor for firms. As a result, researchers have carried out related research on SCM. This study aims to explore the research trends in SCM in Korea using network text analysis. We collected the information of 586 articles published in Korean journals using the RISS database, and analyzed the network generated by keywords proposed in the articles. The results showed that there are five research keyword clusters such as logistics, information systems, partnership, risk management, and sustainability.

• The Magazine for Energy Service Companies
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• s.65
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• pp.30-33
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• 2010

LED 조명 전문가에게 LED 조명 발전 방향을 물었다. 국내 LED 기술동향은 어떠한지, 新성장 동력산업으로써의 성장가치, 국내 기업들의 LED 개발현황과 친환경 고효율 LED조명엔진 개발현황에 대해, 그리고 LED 조명시스템 발전을 위해 연구되어야 할 과제에는 무엇이 있는지. 한국조명연구원 연구사업부 이세현 팀장과 나눈 이야기가 시작된다.

• Journal of Internet Computing and Services
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• v.21 no.4
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• pp.97-107
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• 2020

This study aims to conduct a comprehensive meta-study from the perspective of content analysis to explore trends in Korean academic research on the sharing economy by using the big data analytics. Comprehensive meta-analysis methodology can examine the entire set of research results historically and wholly to illuminate the tendency or properties of the overall research trend. Academic research related to the sharing economy first appeared in the year in which Professor Lawrence Lessig introduced the concept of the sharing economy to the world in 2008, but research began in earnest in 2013. In particular, between 2006 and 2008, research improved dramatically. In order to grasp the overall flow of domestic academic research of trends, 8 years of papers from 2013 to the present have been selected as target analysis papers, focusing on titles, keywords, and abstracts using database of electronic journals. Big data analysis was performed in the order of cleaning, analysis, and visualization of the collected data to derive research trends and insights by year and type of literature. We used Python3.7 and Textom analysis tools for data preprocessing, text mining, and metrics frequency analysis for key word extraction, and N-gram chart, centrality and social network analysis and CONCOR clustering visualization based on UCINET6/NetDraw, Textom program, the keywords clustered into 8 groups were used to derive the typologies of each research trend. The outcomes of this study will provide useful theoretical insights and guideline to future studies.

• Journal of Korean Elementary Science Education
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• v.42 no.1
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• pp.34-46
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• 2023

To investigate the trends in science education research related to play and derive implications for elementary science education research, we analyzed 109 research articles on play in science education published both in Korea and abroad. First, the number of research studies conducted abroad has been steadily increasing since 2009, with the highest number targeting middle school students. Conversely, domestic research has the highest number of papers targeting elementary school students. Second, in terms of research methods, quantitative methods were the most commonly used. Third, the use of questionnaires was the most frequently published research method, while the use of observation and products was smaller in number in domestic studies compared to those conducted abroad. Fourth, In the aspects of the contents, more research was conducted in the field of physics than in other areas. In case of researches for elementary school students, domestic research was focused on four areas of science. Fifth, among the studies exploring effectiveness, the 'cognitive domain' was the most studied, followed by the 'science-related attitude domain' and the 'inquiry and practice domain'. Sixth, the use of play was high in the following order: online games, video games, virtual play, and games with rules. For domestic researches, studies on analog play were most frequently reported, and the ratio of digital games in abroad was higher than that of others. Seventh, the highest number of papers used teacher-directed play, and this tendency was more noticeable in domestic studies.

• Communications of Mathematical Education
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• v.34 no.4
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• pp.439-464
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• 2020

This study conducted a systematic review of mathematics teacher learning communities, especially the characteristics of teacher collaboration in community activities. Our review includes 14 research papers published in national academic journals indexed in KCI and 24 research papers in international academic journals indexed in SSCI from 2003 to 2019. Results show that the literature varied in research design, research topics, and patterns relating to teacher collaboration. While both international and national papers report teacher community activities concerning the organization, management, and participation, there were different levels of involvement, visions, and activities across the communities of practice. For example, research in national journals has presented teacher community as professional development while papers in international journals have focused on documenting teacher community becoming a reflective community of practice. This study contributes to understanding the interplay of context, conflicting epistemic culture, and professional agency in fostering collaboration in teacher communities. This paper also discusses relevant research methods to investigate mathematics teacher communities and insights into the policy and practice of mathematics teacher education.

• Korean Journal of Environment and Ecology
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• v.31 no.1
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• pp.30-41
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• 2017

Mammals in Korea have been studied in various fields such as animal science, veterinary medicine, laboratory animal science, ecology, and genetics. As the importance of biodiversity has been emphasized recently, conservation and management of mammals have attracted much public attention. However, in spite of such an increase in scientific research and public interest, it is still difficult to find a report or summary to grasp the trend of mammalian research in Korea. The purpose of this study is to provide the basic data for future plans of the detailed research area and the related policies by grasping the research trends of mammals in Korea. Using text-ming and co-word analysis, we analyzed 392 mammalian research papers published in Korean national journals as of 2015. Our results showed that the number of mammalian research papers published in Korea has gradually increased and that the research target species have also become increasingly diverse. The major research areas identified through text-mining and co-word analysis are (1) evolution/phylogenetics/genetics, (2) environmental science/ecology, (3) embryology/reproductive biology/cell biology, (4) veterinary medicine related to parasites, (5) parasitology related to rodents, (6) bacteriology/virology, (7) anatomy/cell biology/laboratory animal science, (8) veterinary science related to morphology and anatomy, (9) animal science, (10) marine mammalogy, and (11) Chiroptera (bat) research. Environmental science/ecology has been the most active field among the 11 research areas in recent times, and the proportion of research has increased sharply compared to the past. Environmental science/ecology is the core of biodiversity conservation, and as the importance of biodiversity has been emphasized in recent years, researchers' interest in mammal ecology appears to have increased. We expect that the results of this study will be useful for future research plan and related policies on mammals in Korea.

• Electronics and Telecommunications Trends
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• v.15 no.1 s.61
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• pp.41-54
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• 2000

구내통신선로설비는 초고속정보통신망을 건물 내의 이용자의 단말까지 연결해주는 설비로서 향후의 새로운 정보통신서비스를 위해서는 매우 중요하다. 기존의 국내의 구내통신선로설비는 음성급 전화 서비스 위주로 구성되어 있고 새로운 초고속정보통신망의 멀티미디어서비스를 수용하기 위한 구내통신선로설비를 구축하기 위해서는 관련 표준 및 기술기준의 개선이 매우 필요하다. 본 논문에서는 구내통신선로설비의 제외국의 표준화 및 기술기준 제정 현황을 살펴보고 국내의 현행 기술표준 및 기술기준과 비교.분석하였다. 이를 토대로 구내통신선로설비의 고도화를 위한 현행 기술기준과 관련 표준에 대한 문제점과 개선방안을 제안하였다.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2006.06a
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• pp.257-258
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• 2006

해양에너지는 지구의 70%를 점유하는 해양이 태양에너지를 받아서 그것을 내부 에너지로 저장하는 것으로 지속적 보급을 받고 있는 재생 가능한 에너지이다. 본 논문은 해양에너지를 실용화 하는 연구개발 분야 중 최근 주목받고 있는 조력 및 조류에너지에 대해 국내의 동향을 소개하고자 한다.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.23 no.1
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• pp.21-42
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• 1997

세계의 화장품 개발방향은 소비자의 욕구와 다양화와 관련기술 등의 발달로 인하여 피부미화, 청결 등의 단순한 효능에서 이제 고기능, 다기능을 갖는 제품들의 개발로 변화되고 있다. 이러한 세계적인 추세에 따라 국제화된 국내시장에도 기능성 화장품이 수입 또는 제조되고 있으며 국내 소비자들도 이러한 제품을 선호하는 경향을 보이고 있으므로 이를 적정하게 규제하며 소비자를 보호하기 위하여 기능성 화장품의 정의가 필요하게 되었다. 정의설정을 위해 미국, EU, 일본 등의 화장품의 정의와 범위 등을 연구하고 실제 판매되고 있는 제품들을 참고하여 기능성 화장품을 정의하였다. 또, 이러한 화장품의 범위 등을 구체적으로 설정하고 이에 대한 규제동향 등을 제사하고자 한다.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.765-767
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• 2003

최근 부하설비의 증가와 더불어 전기화재 사고에 대비한 안전장치의 연구와 규정이 전세계적으로 변동하는 추세에 있다. 이와 관련하여 본 논문에서는 국내화재에서 전기화재가 차지하는 비율과 아크 회로차단기의 정의와 필요성에 관하여 기술하였으며, 국가별 아크 회로차단기의 국제동향을 바탕으로 국내실정에 맞도록 아크 회로차단기에 대한 규정변화를 모색하고자 한다.