• Journal of Family Resource Management and Policy Review
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• v.26 no.4
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• pp.39-52
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• 2022

The purpose of this study was to examine the workday leisure time of dual-income fathers and mothers with preschool children. Data were gathered from the Statistics Korea Life Time Surveys from 2004(y1) and 2019(y2) (n=2,697). Life time was composed of three types(inevitable time, compulsory time, and leisure time) and leisure time was categorized into 11 activities(voluntarism, participation, social relationships, religion, rituals, culture and tourism, sports, game and play, media, rest, and others) to investigate gender differences and time effects. The major results were as follows: First, both working fathers and mothers with preschool children spent less inevitable time, more compulsory time, and less leisure time, than other adult group. Second, fathers spent more time on 10 leisure activities except religion in y1, and on all activities than mothers in y2. In y2, less time on three activities(social relationships, rituals, and media) for both fathers and mothers, less time on religion for mothers only, more time on two activities(participation, game and play) for both groups were spent than y1. Third, in the regression analysis of fathers' and mothers' leisure time on three leisure activities(sports, game and play, and media) with a distinct pattern from leisure time for adult group between y1 and y2, socioeconomic variables and lifetime variables showed different effects by gender and waves. Based on the results, family policy and programs to improve the work-life balances of working fathers and mothers discussed.

• Journal of Information Management
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• v.42 no.3
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• pp.1-26
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• 2011

The domain of LED is analyzed for describing the current status of Korea's R&D in the domain comparing with those of others quantitatively. Fourteen sub-domains of LED manufacturing technology are selected and the time span for analysis is ten-year: 2001-2010. Bibiliometric analysis is performed by the unit of publication, core researcher, institution and country. Strategical diagram is also produced with devised two indicators: NGI and NPI. As a result, Korea is competitive in the area of Chip Scale Package, but R&D supports in another promising areas, such as large-caliber sapphire wafer, are necessary. It is also revealed that research activities are expanded dominantly in academia, but practical technologies are developed in industrial circle. It is suggested that to support core corporate and to encourage industrial-academic collaboration is essential for systematical technology development and high achievement in prominent areas.

• Journal of the Korean School Mathematics Society
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• v.13 no.4
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• pp.499-524
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• 2010

In this paper, we applied NIE(Newspaper In Education) to the course of study for statistics unit of elementary mathematics which can improve students' abilities of concept of statistics, analyzing data and problem solving so they can do these with direct activity by themselves and find out how NIE effects on children's learning achievement for statistics unit and more effective solution for the course of study for elementary mathematics.

• JOURNAL OF ELECTRICAL WORLD
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• s.264
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• pp.79-83
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• 1998

생에너지(에너지절약/이용합리화)를 실시하기 위해서는 환경국제규격 ISO14001에 기초한 환경매니지먼트 시스템에 따라 적극적인 추진이 필요하며, ''생에너지의 목표설정(P)'', ''감시 및 측정과 기록(c)'', ''개선(A)''의 P-D-C-A사이클에 대한 지속적인 활동이 중요하다. 전기량의 감시 및 측정과 기록(c)에 대해서도 전기설비 전체를 대상으로 해서는 개선점을 발견하기 힘들며, 보다 세밀한 피더별 관리의 경우가 효과를 거두기 쉽다. 그래서, 분기마다 부하설비별로 전기량을 감시, 측정하고 저코스트로 간단하게 기록할 수 있는 생에너지 지원기기가 필요하다. 그 하나가 ''MDU브레이커''로서 배선용차단기에 계측용 VT''CT와 계측표시유닛MDU(Measuring Display Unit)를 일체화한 제품이다. 대전류가 흐르는 배선용차단기와 서지$\cdot$노이즈를 싫어하는 계측기기인, 언뜻 보아 어울리지 않는 조합이지만 지난 20년 동안의 전자식차단기에 있어서 대전류에 가까운 과전류 검출회로를 정확하게 동작시켜온 경험을 살린 제품이다. 그 MDU브레이커를 사용한 전로감시시스템의 구성예로서 (1)퍼스텀과 시퀀서를 컨트롤러로 하여 MDU 브레이커가 100대 이상인 본격적인 것에서부터 (2)조작표시기로 간단하게 계측할 수 있는, MDU브레이커가 8대 전후인 소규모시스템까지 각종 방법에 대해 소개한다.

• Proceedings of the Korean Society for Information Management Conference
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• 2015.08a
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• pp.17-22
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• 2015

본 연구는 국내대학의 교원들의 학술논문업적에 관한 합리적이고 객관적인 평가방법 개발에 비계가 되고자, 현재 국내 대학에서 시행중인 교원업적평가 중 학술논문평가기준을 비교 분석하였다. 우선 문헌정보학과가 포함된 국내 종합대학 27개교의 학술논문평가기준을 수집하여 비교한 다음, 2001년에서 2014년까지의 전국문헌정보학과 교원들의 학술논문 서지데이터를 이용하여 학술지의 영향력지수 및 피인용횟수를 적용한 순위와 27개대학 평가기준을 적용한 순위를 학교별, 저자별로 도출하여 비교 분석하였다. 본 연구를 통하여 교원들의 공정한 평가방안 마련에 도모하고자 하며, 교원의 연구 및 학문활동의 상승 제고 뿐 아니라 대학 내 연구환경 개선까지 다방면으로 교원의 사기진작에 도움이 되고자 한다.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.1552-1553
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• 2007

2001년 1월 빌 클린턴 미국 전 대통령의 국가나노기술전략 (National Nanotechnology Initiative) 발표 이후 현재 전세계 50여개 국가에서 국가핵심전략 연구개발사업의 하나로 나노기술을 선정하고 집중투자하고 있다. 이러한 정책 및 예산지원으로 인해 정부연구개발투자의 효율화를 위한 연구성과의 체계적인 평가가 중요하게 되었으며, 나노기술 연구개발 활동의 연구결과는 과학기술 생산성이나 연구결과물 즉 논문 등의 출판을 통한 확산이나 인용분석 등에 기초한 양적 평가지표를 이용해 측정하는 서지적 방법에 의해 평가되고 있다. 나노기술 연구활동 및 실적에 대한 객관적 평가는 과학기술 정책 입안과 의사결정 과정에서 중요한 역할을 하며 나노기술 분야의 연구활동을 평가하기 위한 중요한 지표가 될 수 있는 것이 연구논문이다. 이에 본 연구에서는 미국의 민간학술정보전문기관인 ISI(Institute for Scientific Information)에서 구축하였으며 주요과학기술문헌 인용색인정보를 수록한 SCIE 데이터베이스를 활용하여 우리나라의 나노기술관련 논문신장율, 세계점유율 및 국가별 비교분석을 수행함으로써 국내 나노기술 연구개발 수준 및 성과분석을 위한 기초 자료를 제공하고자 한다.

• Communications of Mathematical Education
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• v.36 no.3
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• pp.439-467
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• 2022

The future society requires not only knowledge but also various competencies, including creativity, cooperative spirit and integrated thinking. This research develops a program for integrating mathematics and information science to enhance important mathematical competencies such as problem-solving and communication. This program does not require much prior knowledge, can be motivated using everyday language and easy-to-access tools, and is based on creative problem-solving activities with multilateral cooperation. The usefulness and rigor of mathematics are emphasized as the number of participants increases in the activities, and theoretical principles stem from the matrix theory over finite fields. Moreover, the activity highlights a connection with error-correcting codes, an important topic in information science. We expect that the real-world contexts of this program contribute to enhancing mathematical communication competence and providing an opportunity to experience the values of mathematics and that this program to be accessible to teachers since coding is not included.

• Journal of the Korean Society for information Management
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• v.38 no.1
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• pp.169-190
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• 2021

Research in various academic fields using network analysis techniques has been conducted and grown. This study performed bibliographical analysis and content analysis on a total of 2,187 network analysis papers published in journals from 2003 to 2021. The results showed that the fields of Pedagogy, Interdisciplinary Research, Computer Science, Library and Information Science, Public Administration, and Business Administration were higher in terms of the number of research papers. From the perspective of journal, mega-journals were indicated as the most productive journals. However, when looking at the impact based on the number of citations, the strength of Public Administration, Library and Information Science, and Pedagogy is clearly revealed. The results of the analysis by authors can also confirm the higher impact of Journalism, Public Administration Science, and Library and Information Science. Of the 1,537 authors identified, very few authors are active in research, confirming the need to expand the researcher base. The results of content analysis showed that the weighted and non-directional network was the most common network type with using the research papers as a data set. Generally nodes are expressed as words and links are expressed as relationship. For network analysis, the use of KrKwic, UCINET, NetMiner, and NetDraw is the most prominent.

• School Mathematics
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• v.15 no.4
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• pp.785-799
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• 2013

The researchers developed the teaching-learning materials for 9th grade mathematically gifted students in terms of the hypothesis that the students would have opportunity for problem solving and develop various mathematical thinking through the mathematical modeling lessons. The researchers analyzed what mathematical thinking abilities were shown on each stage of modeling process through the application of the materials. Organization of information ability appears in the real-world exploratory stage. Intuition insight ability, spatialization/visualization ability, mathematical reasoning ability and reflective thinking ability appears in the pre-mathematical model development stage. Mathematical abstraction ability, spatialization/visualization ability, mathematical reasoning ability and reflective thinking ability appears in the mathematical model development stage. Generalization and application ability and reflective thinking ability appears in the model application stage. The developed modeling assignments have provided the opportunities for mathematically-gifted students' mathematical thinking ability to develop and expand.

• Journal of the Korean Society for information Management
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• v.31 no.4
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• pp.7-28
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• 2014

This study analyses the questions addressed to the collaborative digital reference service run by the National Library of Korea. The data consist of 661 question entries to the 'Ask a Librarian' service during first 6 months in 2014. Each entry includes average 1.17 questions, and 77.82% of the total questions are real reference in nature. Questions are analyzed by classification division, context of the questioner, desired end product, activities of librarians, and the resources used to respond them. Each category is subdivided and analyzed in detail. Results revealed interesting findings and problems, and suggestions for further endeavor are provided.