• Journal of Astronomy and Space Sciences
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• 제23권1호
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• pp.55-70
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• 2006

한국의 역사서에 속에는 혜성을 관측한 기록이 많이 있다. 우리는 그 가운데 조선 현종 5년 1664년 겨울에 나타난 혜성을 관측한 기록을 <성변측후단자>, <천변등록>, <승정원일기>, <조선왕조실록>에서 수집 정리하였다. 우리는 올버스(Olbers)의 방법을 사용하여 혜성의 예비 궤도 요소를 구하고, 그것을 이전의 연구들과 비교하였다 올버스의 방법에서는 혜성 궤도의 이심율 e=1인 포물선 케도로 가정한다 관측 자료를 사용하여 궤도를 계산한 결과, 근일점 거리 (perifocal distance) $q=1.07\pm0.008AU$, 근일점 통과 시간 $T=2329165.50\pm0.72$일, 승교점과 근일점의 이각(argument of the perifocus) $\omega=318^{\circ}.2\pm2^{\circ}.29$, 승교점 경도(longitude of the ascending node) $\Omega=85^{\circ}.23\pm2^{\circ}53(J1665)$, 궤도 경사(inclination) $i=160^{\circ}.28\pm1^{|circ}.56$를 얻었다.

• 컴퓨터교육학회논문지
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• 제22권3호
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• pp.135-146
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• 2019

사회 각 분야에서 관련 주제에 대한 보다 직접적인 정보를 수집하고 분석하기 위하여 빅데이터 분석이 활발하게 활용되고 있다. 우리나라에서 사회적 관심과 파급 효과가 큰 교육 분야에서도 빅데이터 분석 기술을 활용하여 교육이나 정책의 효과를 파악하고 정책 수립에 활용하는 것에 관심이 높아지고 있다. 본 논문에서는 교육 분야에서 빅데이터 분석 기술을 활용하는 방안을 소개하고자 한다. 현재 핵심 교육정책 중의 하나인 자유학기제에 초점을 두고, 각 학교가 작성한 운영계획서에 대해 텍스트 분석과 시각화를 통하여 주요 관심 사항과 차이점에 대해 살펴보았다. 특히 서울과 강원도 지역의 중학교 자유학기제 운영계획서를 대상으로 지역적으로 주요 특성과 관심 사항이 서로 다르다는 것을 비교하였다. 본 연구는 빅데이터 분석 기술을 교육 분야의 필요와 요구에 따라 적용하고 활용하였다는 것에 큰 의의가 있다.

• 대한한방내과학회지
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• 제42권1호
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• pp.53-66
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• 2021

Objective: The purpose of this study was to collect and evaluate evidence of herbal medicine treatments for the residual effects of COVID-19. Methods: Nine electronic databases, namely PubMed, Science Direct, CINAHL, CNKI, Wanfang, J-STAGE, CiNii, OASIS, and Science ON, were searched with the following keywords: 'COVID-19'; 'sequelae'; 'Convalescence' for 'P (Population)' and 'Medicine, Chinese Traditional'; 'Korean medicine'; 'Herbal medicine' for 'I (Intervention)'. For the selected studies, various clinical data were extracted including patient symptoms, pattern identification, herbal medicines prescribed, and treatment results. Results: A total of nine clinical studies were identified (two case control trials; one case series; and six case reports). Various residual symptoms had been detected in the recovery stage of COVID-19 with the most commonly used pattern identifications being deficiency in both lung and spleen and in both qi and yin. Any herbal medicine prescriptions were written using these patterns. We found several reports of the positive effect of herbal medicines in that it improved symptoms, lung function, and lung inflammation. No adverse events were reported. Conclusions: The results indicate that treatment with herbal medicines has a possible therapeutic effect on the residual symptoms of COVID-19. Large-scale studies are necessary to confirm the effectiveness of these approaches.

• 문화기술의 융합
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• 제7권1호
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• pp.66-74
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• 2021

본 연구는 코로나19 사태 이후 보도된 간호사와 관련된 신문기사 동향을 살펴보고 이를 통해 신문기사에 나타난 간호사 이미지를 분석하기 위해 실시되었다. 분석대상은 국내 코로나 19 사태가 본격화된 2020년 1월부터 2020년 10월까지 10개월 동안 국내 주요 4개 일간지에 보도된 간호사 관련 기사 199건이다. 분석결과, 과거에 비해 간호사 관련 기사의 보도량은 증가하였으며, 간호사가 업무 대비 열악한 대우를 받고 있고 소명의식을 가지며 환자를 돌본다는 주제의 기사가 많았다. 기사의 보도방향은 호의적이거나 중립적인 것이 많았고, 기사 작성자는 기자가 대부분이었으나 전문기자나 간호사를 포함한 의료인이 작성한 것은 적었다. 간호사 관련 기사에서 간호사의 비중은 선행연구와 달리 주요인물로 다뤄진 경우가 많았다. 간호계와 언론계 모두 간호사의 다양한 역할이나 활동에 대한 정확한 묘사가 신문에 나타나도록 체계적이고 지속적인 노력을 기울여야 할 것이다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제18권4호
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• pp.237-256
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• 2014

This paper reports findings from a written assessment which was designed to investigate Chinese primary school students' understanding of the equal sign and equation structure. The investigation included a sample of 110 Grade 3, 112 Grade 4, and 110 Grade 5 students from four schools in China. Significant differences were identified among the three grades and no gender differences were found. The majority of Grades 3 and 4 students were found to view the equal sign as a place indicator meaning "write the answer here" or "do something like computation", that is, holding an operational view of the equal sign. A part of Grade 5 students were found to be able to interpret the equal sign as meaning "the same as", that is, holding a relational view of the equal sign. In addition, even though it was difficult for Grade 3 students to recognize the underlying structure in arithmetic equation, quite a number of Grades 4 and 5 students were able to recognize the underlying structure on some tasks. Findings in this study suggest that Chinese primary school students demonstrate a relational understanding of the equal sign and a strong structural sense of equations in an earlier grade. Moreover, what found in the study support the argument that students' understanding of the equal sign is influenced by the context in which the equal sign is presented.

• 한국과학교육학회지
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• 제32권1호
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• pp.1-14
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• 2012

대학교 1학년 학생들을 대상으로 모델링 탐구 실험을 적용하여 질적 연구 방법으로 학생들의 모델링 사고 유형을 알아보았다. 학생들의 모델링 과정은 'Refining tentative model(임시 모델 정교화)', 'Accepting alternative model(대안 모델 채택)', 'Discarding tentative model(임시 모델 폐기)', 'Failing to find causes(원인 규명 실패)', 'Disbelieving results(실험 결과 불신)'의 다섯 가지 유형으로 나누어진다. 학생들은 모델링 탐구 활동을 통하여 과학자의 사고 과정을 경험하여 모델의 본성과 의미를 이해하였고, 이것은 학생들이 과학 지식의 본성을 이해하고, 스스로 탐구할 수 있는 기초가 될 것이다.

• 한국직업건강간호학회지
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• 제7권2호
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• pp.130-135
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• 1998

To investigate the working characteristics of the workers by place of duty, a study was carried out among 591 male workers aged 20-55 employed in an automobile industry in Korea. Workers participated to this study were divided into low back pain(LBP) and control group, according to the self-reports by written questionnaires. Work factors and complaint rates of low back pain were compared to the work places. The results were as follows ; 1) The complaint rates of low back pain were 49.2%(292 men) as a whole, 58.6%(34 men) in Production Control Department I, 50.2%(120 men) in Stamping Tool Department, 46.9%(138 men) in Bus Department. 2) Lifting and earring work of individual workers were directly associated with low back pain. Frequency of lifting and carring work is higher in the Final Body Section(Production Dept. I) and Body I Section(Bus Dept.). 3) LBP group were more frequently involved in working in awkward position(Quality Control Section of Stamping Tool Dept.), bending(Body I Section of Bus Dept.) and twisting posture(Sash Section and Body I Section of Bus Dept.). 4 )Workers exposed to vibration during working shows the higher complaint rate of low back pain.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권2호
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• pp.131-144
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• 2012

The purpose of this study is to investigate the change of mathematics pre-service teachers' teaching behaviors in microteaching. This study is organized along the following lines: 1) mathematics pre-service teachers conduct twice microteachings, 2) the microteaching recordings and lesson observation reports written by pre-service teachers are analyzed. Through reviewing the first microteaching, pre-service teacher have reviewed and found out improvements of their teaching. In the second microteaching, pre-service teachers' teaching behaviors have been positively and effectively changed with respect to teaching methods, proposal of learning objectives, prior knowledge usage, presenting lesson's content, concise descriptions, brief language usages, multimedia, and appropriate questions. However, they frequently used inappropriate expressions from their unconscious habits. Therefore, the educational institutions should provide opportunities involved in well-structured microteaching training program with pre-service teachers, which in turn, help pre-service teachers to have more positive teaching competence.

• 한국압력기기공학회 논문집
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• 제10권1호
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• pp.70-74
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• 2014

An Operating Experience Report(OER) has written about events and accidents happened at a Nuclear Power Plant(NPP). The purpose of publishing the OER is to prevent the similar event or accident repeatedly by spreading the experience of a single plant to other plants personnel. In this paper, it is analyses that the foreign NPPs' OERs on JIT published by the International Nuclear Agency(WANO, INPO, COG, BE). The analysis introduced in this paper is performed along with the various factors such as type of work, root-cause, and equipment. The root-cause analysis about the OERs shows that the Human-error is the major factor in foreign NPPs, but on the other hand equipment problem is the main part of the Domestic NPPs. The ratio of the foreign NPP's OERs on JIT according to the type of work was applied to KHNP-JIT developed nowadays for the first time in KOREA.

• 수산해양교육연구
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• 제15권2호
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• pp.154-165
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• 2003

Fisheries and shipping industry as national basic industry need continuous growth and basic human resource development for international competition. This study was carried out through investigating of the related literature and reports. The purpose of study for developing direction and subject matter of curriculum in the fisheries marine science high school was as follows. Recently, reforms of vocational high school will expand professionalization and specialization. Therefore systematic curriculum of basic knowledge, basic skill and technical is required more and more in field work of fishery and merchant marine. The other important factors of curriculum improvement were cooperative role between school and local industry, adaptation of basic ability, job analysis, various curriculum opening. Above all, teachers of fisheries and merchant marine high school require advanced consciousness and must participate in revising curriculum. And the textbook of fisheries and merchant marine high school is useful to improve the level of learning ability degree and must be written by the related teacher, and the textbook contents must be studied by the expert group under professors leading to advanced discipline and skill of field work.