• 제목/요약/키워드: Knowledge Domain

검색결과 998건 처리시간 0.025초

중학교 ‘기술.가정’ 교과 교육내용의 통합적 접근에 관한 연구 (A Study on the Integrated Approach for the Contents of Industrial Arts.Home Economics in Middle School)

  • 전현주;윤인경
    • 한국가정과교육학회지
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    • 제3권1호
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    • pp.95-112
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    • 1991
  • This study was conducted to identify a problem of Industrial Arts$.$Home Economics subjects, and to improve its curriculum contents. In order to have accomplished the above objectives, the experts were gained about ideas and methods about organization of the curriculum contents of Industrial Arts$.$Home Economics subjects. In second questionnaire, based on the curriculum contents of Industriasl Arts$.$Home Economics subjects draw from the above review of literatures, the opinions of the experts were investigated about review of literatures, the opinions of the experts were investigated about the selection of the contents of Home Economics, Industrial Arts, respectively. The selected data in first questionnaire was manipulated by the frequency and percent. The curriculum contents in second questionnaire was selected above the sum total 80 in Home Economics subjects and above the sum total 61 in Industrial Arts subjects. The distinction of curriculum contents selected by the each domain were as follows. (1) The daily life as a consumer and the importance of home management were emphasized in the curriculum contents selected in the domains of consuming and management. (2) The vocational investigation, the course education, and the development of the young generation were emphasized in the curriculum contents selected in the domains of the family living and human development. (3) The basic Knowledge of nutrition and cooking and the contents related to the food choice were emphasized in the curriculum selected in the nutrition and food. (4) The choice and care of clothing a proper personal appearance, and the contents related to the machinery and tools were emphasized in the curriculum contents selected in the clothing and textiles. (5) The economical aspects of housing, the contents of the reasonable housing choics, and the contents for vital skills were emphasized in the housing and instruments.

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The detection of cavitation in hydraulic machines by use of ultrasonic signal analysis

  • Gruber, P.;Farhat, M.;Odermatt, P.;Etterlin, M.;Lerch, T.;Frei, M.
    • International Journal of Fluid Machinery and Systems
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    • 제8권4호
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    • pp.264-273
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    • 2015
  • This presentation describes an experimental approach for the detection of cavitation in hydraulic machines by use of ultrasonic signal analysis. Instead of using the high frequency pulses (typically 1MHz) only for transit time measurement different other signal characteristics are extracted from the individual signals and its correlation function with reference signals in order to gain knowledge of the water conditions. As the pulse repetition rate is high (typically 100Hz), statistical parameters can be extracted of the signals. The idea is to find patterns in the parameters by a classifier that can distinguish between the different water states. This classification scheme has been applied to different cavitation sections: a sphere in a water flow in circular tube at the HSLU in Lucerne, a NACA profile in a cavitation tunnel and two Francis model test turbines all at LMH in Lausanne. From the signal raw data several statistical parameters in the time and frequency domain as well as from the correlation function with reference signals have been determined. As classifiers two methods were used: neural feed forward networks and decision trees. For both classification methods realizations with lowest complexity as possible are of special interest. It is shown that two to three signal characteristics, two from the signal itself and one from the correlation function are in many cases sufficient for the detection capability. The final goal is to combine these results with operating point, vibration, acoustic emission and dynamic pressure information such that a distinction between dangerous and not dangerous cavitation is possible.

한밭 수목원의 과일과 꽃으로부터 효모의 분리 (Yeasts Associated with Fruits and Blossoms Collected from Hanbat Arboretum, Daejeon, Korea)

  • 현세희;민진홍;김선아;이종수;김하근
    • 한국균학회지
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    • 제42권2호
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    • pp.178-182
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    • 2014
  • 효모는 엽권의 중요한 서식자이지만, 효모의 분포와 역할을 정확하게 이해하고 있지 못한 형편이다. 2013년 봄과 가을에, 대전시 서구 만년동에 위치한 한밭 수목원에 식재되어 있는 각종 꽃과 과일로부터 효모를 분리하였다. 분리된 효모 집락을 PCR 방법에 의해 26S rDNA의 D1/D2 지역을 증폭하고 염기서열을 결정한 후, BLAST를 이용하여 데이터베이스와 비교하여 효모를 동정하였다. 그 결과 29종의 꽃과 6종의 과일로부터, 14속 31종에 속하는 효모를 57균주를 분리하였다. 그 결과 봄과 가을, 계절에 따라서 같은 수목원에서 분리되는 효모 종에 현저한 차이가 있는 것을 발견하였다.

소규모 학급의 환경 체험 학습을 위한 학습 유형화와 그 교육 과정 (The Learning Styles and Curriculum for Environmental Experience-Based Learning in Classroom of the Small Scale)

  • 곽홍탁;이옥희
    • 한국환경교육학회지:환경교육
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    • 제19권3호
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    • pp.40-56
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    • 2006
  • The purpose of this study is to enhance elementary students' awareness of environment-friendly life and help them to prepare for a better life in the future. To achieve this purpose we examined the effect typical environmental experience-based learning activities, which were based on the local circumstances with high environmental-educational potential, have on the attitudes toward environment-friendly life. This study was carried out on the basis of typical environmental experience-based learning in the small class size. The research group used was composed of one sixth grade elementary school class called Sangroksu, whose total students were 9. The research period lasted from March 2005 to February 2006. To analyze the result of this study, two research methods were applied simultaneously : quantitative research methods and qualitative research methods. Especially statistical analysis in quantitative research methods by self-administrated questionnaire was done with SAS program. Qualitative research methods were analyzed in a cyclic pattern, including the processes of domain analysis, classification analysis, and factor analysis which continued to be associated with data-collecting methods. This research shows the following results. First of all, students have shown meaningful differences after typical environmental experience-based learning activities.(p<.05). Followings are fields of the differences - students‘ interest on the subject, their understanding levels of necessity for basic environmental facilities around us as well as for the kinds of environmental experience-based learning, awareness levels of various environmental problems, consciousness on environment conservation, and the practicing ability of environment - friendly lifestyles. Secondly, We have discovered improvements in the following fields after this study - the knowledge and understanding levels on our environment and human relationships, students' fundamental abilities to work out environmental problems, right ideas and appropriate attitudes on environment protection, the practicing ability of environment-friendly life styles, and their parents' understanding levels on the education related to environment. In conclusion, typical environmental experience-based learning activities have a positive effect on the improvement of elementary school students' environment-friendly life styles.

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협업설계를 위한 엔지니어링 프레임워크 개발에 관한 연구 -자동차 서스펜션 모듈에의 적용- (e-Engineering Framework to Support Collaborative Design of Automotive Suspension Systems)

  • 박성환;이재경;이한민
    • 한국전산구조공학회논문집
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    • 제21권6호
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    • pp.555-561
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    • 2008
  • 본 논문에서는 한국기계연구원에서 개발된 자동차 서스펜션을 대상으로 한 협업설계 지원 엔지니어링 프레임워크 개발에 관하여 기술한다. 개발된 엔지니어링 프레임워크는 각 분야별 전문가 지식에 기초한 엔지니어링 task agent를 포함한 다양한 복수 계층의 소프트웨어 에이전트로 구성된다. 본 프레임워크는 폭 넓은 국내 중소제조기업 적용 확산을 목적으로 JADE(Java Agent Development Framework)와 같은 공개 소스 프로그램 기반으로 개발하였으며, 프레임워크의 확장성을 유지하기 위하여 관련 H/W 및 응용 S/W의 독립성을 가능한 한 유지하도록 노력하였다. 개발된 프레임워크는 제품개발과 정에 있어 지역적으로 분산된 사용자 및 엔지니어링 자원 등을 효과적으로 활용할 수 있는 통합된 협업 설계환경을 제공한다. RR/FR lower arm 및 RR cross member와 같은 몇 개의 실제 자동차 서스펜션 모듈의 설계엔지니어링 문제에의 적용을 통하여 본 시스템의 적용성과 효율성을 확인하였다.

도덕과 교육에서의 환경 교육 (Environmental Education in the Moral Education)

  • 윤현진
    • 한국환경교육학회지:환경교육
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    • 제12권1호
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    • pp.64-75
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    • 1999
  • The goals of moral education according to the 7th educational curriculum are (1) to learn the basic life custom and ethical norms necessary to desirable life, (2) to develop the judgment to solve desirably and practically the ethical matters in daily life, (3) to develop the sound citizenship, national identity and consciousness, and the consciousness of world peace and mankind's mutual prosperity, and (4) to develop the ethical propensity to practice the ideal and principle of life systematically Based on the goals in the above, the following can be established as goals of environmental education possible: (1) to learn judgment to solve practically the environmental problems in the society with their ethical understanding, and (2) to recognize that environmental consciousness is the basic necessity of sound citizenship and national identity and consciousness, and mankind's mutual prosperity, and to have attitudes to practice environmental preservation in daily life. Like these, the intellectual aspect, the affective aspect, and the active aspect can be established in the environmental education in the ethics education keeping their balance. In order to achieve its goals, the contents of ethics subject are organized largely with 4 domains: (1) individual life, (2) home life, life with neighbors, and school life, (3) social life, and (4) national life. Among these, environmental education is mainly included in the domain of social life. These contents concerning environmental education take 22 (32.4%) out of the whole 68 teaching factors which are taught in the ethics subject from the 3rd grade to 10th grade. These 22 environmental teaching factors are mainly related to environmental ethics, environmental preservation and measures, and sound consumption life. Classified according to each goal, the environmental contents in the 7th curriculum for ethics subject put emphasis on environmental value and attitudes, action and participation, and information and knowledge. Therefore, the recommendable teaching and learning method for the environmental education in ethics subject is to motivate students' practice or to make them practice in person. For example, role-play model, value-conflict model, group study model can be applied according to the topics of environmental education.

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지속가능성 교육으로서 초등학교 환경교육 체계화 연구 (A Study on the Systematizing Environmental Course for Sustainable Education in the Elementary School)

  • 최영분;민병미;최돈형
    • 한국환경교육학회지:환경교육
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    • 제18권1호
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    • pp.1-30
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    • 2005
  • Environmental education as worldwide sustainable education is effective when it is carried out as early as possible. But we do not have any aims and textbooks for environmental education in the elementary school. The purpose of this study is systematizing environmental syllabus as sustainable education. To achieve this purpose, firstly, the meaning of environmental education as sustainable education was conceptualized, secondly, the aims of environmental education was set up, thirdly, domains of environmental education was revised, and lastly, the syllabus for environmental instruction were created for each grade. Literature review was practiced over 143 textbooks and teacher's guidebooks from the 4th to 7th curriculum period. The result of this study follows. First, environmental education as sustainable education in the elementary school was conceptualized as an integrative education to keep the lifelong education and welfare. Second, the synthetic aim of environmental education as sustainable education in the elementary school was set up as 'cultivating desirable environmental people that behave for the sustainable future with environment-friendly value and attitude. Third, our environmental domains were divided into 11-12 independent areas, and ESSD (Environmentally Sound and Sustainable Development) was located on the subcategory of environmental domain. These domains were revised into three environmental domains and five sub-domains. Fourth, according to the aims of environmental education as sustainable education and five environmental domains, 253 objectives were established. Fifth, objectives of environmental education of 10 subject matters and integrative objectives were presented. Sixth, based on the objectives of domains and subject matters, 255 contents for environmental education in the elementary school were abstracted and distributed to each grade in the consideration of balance among domains and appropriateness of grades. Seventh, analytic results of textbooks of 7th curriculum shows heavy stress on the 'knowledge perception' section and deficiency on the altitudes and behavior section. The environment-related level and contents overlapped and fragmented deeply. Furthermore, 33 parts of textbooks could bring to mis-concept on environment.

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한국형 MHBT 영재판별 검사의 개발 및 타당화 (Development and Validation of Korean MHBT for Identification of Giftedness)

  • 임경희;손승남
    • 영재교육연구
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    • 제18권3호
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    • pp.371-400
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    • 2008
  • 본 연구는 독일 MHBT 영재판별검사를 한국형으로 개발하여 타당화하는 데 목적이있다. 우선 MHBT 모델의 구성요소와 이를 활용한 다단계 영재판별과정 및 활용방법을 살펴보았다. 본 연구의 MHBT는 인지능력검사인 KFT-HB와 중등용 영재판별 도구인 MHBT-S로 나뉘며, MHBT-S는 1) 공간표상능력, 공간지각 및 사고, 물리 및 기술문제해결 능력 2) 창의적 재능, 기본 동기 및 인식욕구, 성취욕구, 사회적 능력을 포함한 정의적 영역, 3) 작업태도 4) 흥미선호도로 구성되어 있다. 한국형 MHBT를 중학교 1, 2학년 영재교육원 학생과 일반학급 학생들에게 적용하여 신뢰도와 타당도를 검증하였다. 그 결과 일부 하위영역에서 내적일관성 합치도가 낮은 것을 제외하면 전체 신뢰도는 매우 양호하였다. 대비집단을 이용한 타당도 검증 결과 인지능력검사와 공간 및 물리 관련 영역과 정의적 영역은 영재집단이 전체 점수와 모든 하위검사에서 유의하게 높았으며, 작업태도와 흥미선호도는 일부 영역에서 영재집단이 유의하게 높았다. KFT-HB와 MHBT-S 모두를 판별변인으로 했을 때 두 집단에 대한 판별률도 매우 높아 MHBT의 한국적 적용가능성은 자은 것으로 전망된다.

과학적 창의성의 발달: 창의적 한국인 사례에 대한 전기적 연구 (Scientific Creativity Development: The Case Studies of Creative Korean)

  • 강정하;최인수
    • 영재교육연구
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    • 제19권3호
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    • pp.529-563
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    • 2009
  • 본 연구는 과학 분야에서 한 개인이 창의성을 발현에 가는 과정에서 드러내는 다원적 요소의 발달적 특성들을 살펴보고자 하였다. 연구를 위해 세계적인 성취를 이룬 한국의 창의적 과학자 10인에 대한 인터뷰를 실시하였다. 이를 통해 그들의 과학적 성취가 발현되는 성장발달 과정에서 드러난 주요한 행동 특성들은 무엇이고, 그 과정에 중요하게 영향을 미친 요인들은 무엇이며, 그러고 그러한 행동특정들이 변화되어 간 과정들의 특징이 어떠한 지를 살펴보고자 하였다. 수집한 자료는 총괄적 창의성 체계모델인 '지식진화시스템 (Knowledge-Evolving Systems: KES)'(강정하, 2007)에 의해 분석되었다. 결과, 창의적 과학자는 어린 시절에 과학부문에 대한 강한 지적 호기심과 관심을 가졌었고, 커가면서 이 분야에 관련된 취미활동을 계속하였다. 대학에 들어가면서부터 그들은 전문지식을 체제적으로 습득하였으며, 오랜 집중을 계속했다. 이는 개인의 경험이 다원적 요소들에 의해 점진적으로 성장해 가는 과정이며, 나중에 창의적 성취로 이어진다. 발현과정은 발달심리적 특징과 학령, 그리고 환경적 요인에 의해 크게 4단계 아동기 청소년기 성인기 창조기-로 구분되었고, 단계가 나아감에 따라 드러난 특성들이 더 복잡해지고 강화되었으며, 한편으로는 더 정교하게 분화되었다.

미디어정보 리터러시 개념과 교육내용 개발 (A Study on the Development of Media Information Literacy Concept and Educational Contents)

  • 박주현;강봉숙
    • 한국도서관정보학회지
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    • 제51권3호
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    • pp.223-250
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    • 2020
  • 본 연구의 목적은 미디어정보 리터러시 개념을 규정하고 교육내용을 개발하는 데 있다. 연구 목적을 달성하기 위하여 문헌 분석과 현장 전문가 대상 인터뷰, 사서교사 대상 설문조사가 수행되었다. 분석 결과, 현장 전문가들은 미디어를 정보를 활용하는 도구로 인식하였으며 정보문제해결능력과 독해능력, 미디어의 기능, 사례 활동, 정의적 영역을 미디어정보 리터러시의 교육의 영역으로 인식하였다. 사서교사들은 미디어정보 리터러시의 역량과 교육내용에 있어서 정보 리터러시와 미디어 리터러시의 역량과 교육내용을 디지털 리터러시의 역량과 교육내용에 비해 중요하게 인식하고 있었다. 연구 결과로 미디어정보 리터러시의 개념을 리터러시와 미디어 리터러시, 정보 리터러시, 디지털 리터러시가 중복된 영역으로 지식, 기능, 태도가 포함된 개념으로 정의하였다. 그리고 민주사회에 참여, 미디어 도구와 콘텐츠의 종류, 인간의 기본권, 기능, 디지털 도구 조작, 정보 문제 해결 과정이 맥락에 따라 결합되어 응용될 수 있도록 미디어정보 리터러시의 교육내용을 개발하였다.