• 대한화학회지
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• 제58권6호
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• pp.622-629
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• 2014

이 연구는 최근 5년간(2009년~2013년) 전국과학전람회 학생부 화학부문 수상 작품의 '탐구대상' 변화 추이, '독창성' 평가등급과 실제 수상등급과의 상관관계를 분석하였다. 이를 위해 각 작품들에서 다루어진 '탐구대상'을 6가지 항목별로 분석하였고, 두 평가자 집단(연수 참여 교사, 수상 경험 교사)의 설문조사를 통해 각 작품의 '독창성' 평가등급을 분석하였다. 각 작품에서 다룬 '탐구대상'의 변화 추이를 분석한 결과, 초등학교에서는 '일상생활', '자연현상', 중학교에서는 '일상생활', '학문', 고등학교에서는 '학문'에서 탐구대상을 선정하도록 지도하는 것이 좋을 것이다. 주제의 '독창성' 평가등급과 실제 수상등급 간의 상관관계를 알아본 결과, 두 등급 사이에는 뚜렷한 상관이 없었으므로 다양한 영역을 종합적으로 고려해 지도하는 것이 좋을 것이다.

• 한국환경교육학회지:환경교육
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• 제23권1호
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• pp.27-35
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• 2010

The purpose of this study is to find historical paradigm shift of the environmental subject in Korean school curriculum. For the purpose, two research questions guided this study. First, we would like to find out the changes in environmental education curriculum by interpreting the Korean national curriculum. Second, we want to know about the paradigm shift of environment education in Korea. In this study, curriculum documents, teachers' guide books, textbooks, and other educational materials were used for literature review. The results are as follows: First, Robottom and Hart's frame of three paradigms in environmental education research, positivism, interpretivism and social criticism, was suitable in interpreting curriculum. Second, the curriculum of environment subject has substantially changed from 6th to 2007 revised curriculum. Third, while the 6th curriculum was strongly affected by the positivism and education 'about' the environment, the 7th curriculum had been influenced by the interpretivism and education 'in/through' the environment, and the 2007 revised curriculum is under the influence of the education 'for' the environment and social critical paradigm.

• 한국기록관리학회지
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• 제15권1호
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• pp.53-87
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• 2015

이 연구는 이용자가 기록을 쉽게 '발견'하고, 기록의 의미를 이해할 수 있도록 지원하는 온라인 검색가이드의 설계방향을 모색하기 위한 것이다. 이를 위해 영국, 미국, 호주, 우리나라 국립보존기록관들의 검색가이드 사례를 분석하였다. 가이드의 명칭과 접근 방식, 개발 대상과 범주, 구조와 연계정보를 중심으로 조사하였고, 이를 다시 접근성, 다양성, 체계성, 일관성, 연계성 측면에서 종합적으로 분석하였다. 이를 토대로 국가기록원이 검색가이드를 개발할 때 고려해야 할 사항을 제시하였다.

• 설비공학논문집
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• 제22권10호
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• pp.672-678
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• 2010

The purpose of this study is to develop a stacking guidance system (SGS) of containers in the mobile harbor (MH). A mobile harbor is a floating structure especially designed for loading and unloading containers from and to a large container ship. A novel stacking guidance system was proposed for unloading the container in an effective way against possible vibrations of the floating body. The guidance system works as an aid for loading containers with a wider opening for easier stacking of a container into a moving storage cell due to waves. In order to determine the most effective inclination angle of the cell-guide, this study performed the dynamic analysis of the SGS equipped in the MH subject to fluctuations of the sea. The motions of the guidance system and a container loaded were calculated using ADAMS. The simulation results of the contact force between the two rigid bodies showed that a desirable angle of the cell-guide should be around 20 degrees from the vertical. This proposed SGS can considerably reduce the loading and unloading time, and will enhance the performance of the MH.

• 디지털융복합연구
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• 제18권12호
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• pp.97-103
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• 2020

제안한 시스템은 AI 체력측정 파트와 AI 체력관리 파트 2가지 부분이 연계성을 가지고 구성되어 있다. AI 체력측정 파트에서 딥러닝 기반의 포즈인식을 통해 체력측정에 대한 가이드와 측정값의 정확한 연산을 수행한다. 이 측정값을 기반으로 AI 체력관리 파트에서는 개인 맞춤형 운동프로그램을 설계해 전용 스마트 어플리케이션에 제공한다. 측정자세 가이드를 위해 웹캠을 통해 측정대상자의 자세를 촬영해 골격선을 추출한다. 다음으로 학습된 준비자세의 골격선과 추출된 골격선을 비교해 정상 유무를 판단하고, 정상자세 유지를 위한 음성안내를 실시한다.

• 대한수학교육학회지:수학교육학연구
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• 제21권3호
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• pp.221-237
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• 2011

본 논문에서는 2007 교육과정에 따른 <5-1>, <6-1> 교과서에서 특정한 입체도형을 다루기에 앞서 일반적인 입체도형을 도입하고 있다는 것, <5-1>, <6-1>, <6-2> 교과서에서 구체적인 물건으로부터 입체도형을 추상해 내는 과정이 생략되어 있다는 것, 입체도형 관련 지도 내용의 몇몇 정의가 일관적이지 않고 모호하다는 세 가지에 초점을 맞추어 교과서에서의 입체도형 관련 지도 내용을 비판적으로 분석하고 있다. 이러한 논의를 바탕으로 다음의 네 가지를 제안할 수 있다. 첫째, 교과서의 지도 내용과 교육과정에서 규정하는 지도 내용을 일치시켜야 한다. 둘째, 초등교사에게 지도 내용의 범위를 지도서와 교육과정 해설서를 통해 상세히 알려줄 필요가 있다. 셋째, 교과서의 학년별 지도 내용을 재검토해야 한다. 넷째, 교과서의 상시 수정이 제도적으로 가능해야 한다.

• 조명전기설비학회논문지
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• 제24권12호
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• pp.25-32
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• 2010

Compared to general lighting method, the lighting system that uses optic fiber can provide only the visible light of good quality to subject by eliminating ultraviolet ray and infrared ray. Thanks to this merit, it is possible to prevent the hard phenomenon of subject caused by ultraviolet ray and infrared ray and to provide the agreeable light environment. This study developed indoors illumination system of high color rendering on the basis of plastic optic fiber with excellent optical property and processing to substitute halogen lamp which has been used for excellent color rendering in spite of low efficiency and short life. Producing pilot product of the designed illumination system and evaluating the property of electric and optical property, ultraviolet ray radiation quantity and temperature property, this study verified the excellence of suggested lighting system of plastic optic fiber.

• 한국환경교육학회지:환경교육
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• 제18권2호
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• pp.101-112
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• 2005

The purpose of this study is to develop environmental inquiry activities for teaching the 10th grade students in science classes of high school. The activities are developed to perform goals of environmental education for sustainable development. In order to this, activities are sequently organized in order of context of laboratory, field, and problem solving in respect of one learning topic. The object of inquiry activities in laboratory context is understanding concepts related environment and environmental pollution. The inquiry activities in field context have an object of attaining good awareness and attitude toward environment. Throughout the activities in probem solving context students are expected to have a mind of participating in environmental issues. The activities are designed to learn and use integrated science knowledge in many domains. Some activities are intended to utilize MBL(Microcomputer-based Laboratory). The ICT materials, lesson plans, instructional sheets for teaching and student' sheets for inquiry were produced to guide these activities. It is expected that this effort will contribute to cultivate environmental literate persons who have not only scientific understanding but also practical will of environmental issues.

• 한국소음진동공학회논문집
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• 제26권7호
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• pp.781-786
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• 2016

All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by a statement of the associated uncertainty. By international agreement, this uncertainty has a probabilistic basis and reflects incomplete knowledge of the quantity value. The "Guide to the Expression of Uncertainty in Measurement", commonly known as the GUM, is the definitive document on this subject. The requirements for estimation of measurement uncertainty apply to all results provided by calibration laboratories and results produced by testing laboratories under the optional circumstances. In this paper, a procedure for estimation of measurement uncertainty from vibration testing is proposed on KS F 2868:2003 as an example. Both Type A and Type B evaluation of uncertainty are considered to calculate the combined standard uncertainty and expanded uncertainty.

• 대한수학교육학회지:학교수학
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• 제1권2호
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• pp.433-449
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• 1999

This paper introduces a branch of qualitative method, called an in-depth interview method. By collecting data from the stories of Korean middle school students and a 9th grade American girl who used Geometer's Sketchpad and various software respectively for their mathematical problem solving, the qualitative analysis leads us to understand how such software affect their lives with mathematics subject. The unique characteristics and strands of each student's utterances reflect how software plays a role of learning aid for their mathematics learning. The arm of this study is both to get a good picture of each student's self-perceived relationship to mathematics as well as to explore external and objective parameters and factors in each student's internal situations. The qualitative descriptions of the collected data help us guide the students to the points where they could develop their interests and satisfaction with subject matter better. In this way, teachers may have more realistic understandings of how students become interested and motivated by mathematics, so that they are better able to find out ways of grasping the totalities of how the use of technology is interwoven into the school curricular.