• 한국비블리아학회지
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• 제31권2호
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• pp.5-26
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• 2020

이 연구는 상호작용 놀이 활동 독서치료 프로그램이 초등학교 저학년 학생의 학교생활 적응에 어떠한 영향을 미치는지 그 효과를 검증하는데 목적이 있다. 이를 위하여 서울시 K구에 위치한 초등학교 2학년 학생을 대상으로 학교생활 적응력 향상을 위한 상호작용 놀이 활동 독서치료 프로그램을 설계하여 학교도서관에서 회기별 90분씩 총 12회기로 실시하였으며, 효과 측정을 위하여 학교생활 적응도 검사와 동적 학교생활화 검사를 독서치료 프로그램 사전과 사후에 실시하였다. 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 상호작용 놀이 활동 독서치료 프로그램은 초등학교 2학년 일반학생의 학교생활 적응 전체에 긍정적인 영향을 미친 것으로 나타났다. 둘째, 학교생활 적응의 하위요인인 교사관계, 교우관계, 학교수업, 학교규칙 준수에 긍정적인 영향을 미친 것으로 나타났다.

• 대한기계학회논문집A
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• 제37권7호
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• pp.865-873
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• 2013

CNG 압력용기의 제조를 위하여 고성능 수평식 프레스를 이용한 딥드로잉과 아이어닝의 연속공정(D.D.I. 공정)이 도입되었다. 그러나, 몇몇 D.D.I. 공정 변수들은 현장 경험에 의존하여 결정되는 문제점이 있으며, 다이의 짧은 수명 역시 고성능, 저비용의 압력용기 제조를 위하여 필수적으로 개선되어야 한다. 본 연구에서는, 공정의 신뢰성 확보 및 다이 수명 향상을 위하여 기존 관련 연구 및 현장 경험을 바탕으로 드로잉비, 다이 간의 간격, 드로잉 다이의 라운딩 반경, 아이어닝 다이의 각도를 공정변수로 결정하였다. FEA 를 이용하여 각 성형 단계에서 찢어짐과 주름이 발생하지 않는 한계 드로잉비를 결정하였고, 다이 간의 간격, 드로잉 다이의 라운딩 반경, 아이어닝 다이의 각도에 대하여 실험계획법을 이용하여 최적 공정설계를 수행하였으며, 기존 공정에 의한 결과와 비교하여 효율성을 검증하였다.

• International Journal of Human Ecology
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• 제3권1호
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• pp.37-54
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• 2002

This study examines longitudinal patterns of financial kin support and welfare given to single mother families using life table techniques. Drawing on the 1985-1993 Panel Study of Income Dynamics(PSID), I followed 560 single mothers from the time they began a single motherhood spell. About 30 percent of these single mothers received financial support from relatives, and 40 to 50 percent received AFDC and Food Stamps, respectively. Results indicate that kin support is more likely to be given in a transitional period and tends to decrease over time. In comparison, receiving welfare appears positively time-dependent.

• 가족자원경영과 정책
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• 제1권2호
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• pp.17-30
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• 1997

The purpose of this study was to grope about a modern’s morals through the Confucian traditional morals in these days that human nature is lost and morals is out. The research method is to analysis ‘The Analects of Confucius’. This study provide us with establishment of the life philosophy considering others and cooperating in 21C is drawing on.

• 한국과학교육학회지
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• 제28권7호
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• pp.724-729
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• 2008

Well-integrated science instruction with art often motivates students to more engage in science learning and to freely express their thoughts and feelings on what they have learned in science classes. This study, therefore, attempted to explore Korean children's imaginary science drawings. Ninety elementary students ($3^{rd}-6^{th}$ graders) in Seoul, South Korea, participated in this study. The guiding research questions were 1) what overall characteristics of students' imaginary science drawings are and how these characteristics represent children's image of science, and 2) what educational value of children's imaginary science drawing activity as a case of science-art integration is. Data sources included a set of children's drawings and individual interviews with selected students. From the drawings, it was found that most of the subjects that children drew tended to be limited to the space. In addition, the children tended to assimilate science into technology that makes our life more convenient. We also found imaginary science drawing can be a good science-art integrated instruction method. Imaginary science drawing has educational benefits; one is a tool to investigate children's thoughts and knowledge of science while the other is method that motivate children to learn science effectively.

• 농촌지도와개발
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• 제3권2호
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• pp.247-264
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• 1996

The objective of this study was to analyze the reality of the program development process in detail accomplished by the organizations of extension education in through the hermeneutical approach. To achieve this purpose, this study tried to find answers to the following three questions : (1) how the organization of extension education develop their programs for farmers? (2) what is the programmers' awareness to the process of program development? and what is the reason for their thought and action to do so. (3) can be discussed integrally the findings for drawing some implications? The qualitative data were mainly gathered through participation observation and unstructured interview. And the qualitative data were analyzed by (1) noting pattern and themes, (2) seeing plausibility, (3) clustering, (4) making metaphors, (5) factoring, and (6) building a logical chain of evidence which hermeneutical techniques far drawing the meaning from the gathered data. The findings of this study were as follows: The programmers of this organization carried out the developing program in the technical training division at the national level and the section of fostering farm manager at the county level for the purpose of delivering the agricultural new technology and the agricultural policy. The term used formly in this organization was `curriculum development for former', and the reality of program was `instruction profile` which signified the set of the educational manin contents. At county level, Educational planning was stressed on the implement of educational administration.

• 대한기계학회논문집A
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• 제32권6호
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• pp.519-525
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• 2008

For this study, SM45C steel rods using generally for power transmission shafts and machine components was selected and welded by butt-GMAW method. And then it was studied about estimation of fatigue strength and the region of infinite life by Haigh diagram using Goodman's equation. Fatigue strength in weld zone presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. This result agrees with distribution of hardness in weld zone. Fatigue strength in base metal zone presents highly compared with weld zone in low cycles between $10^4$ cycles and $10^6$cycles, but it presents the lowest fatigue strength on the order of heat affected zone in the vicinity of $10^6$cycles. It is the result that the first high compressive residual stress distributed by drawing process of the steel rods is released and the base metal is softened by alternating stresses. The region of infinite life by Haigh diagram presents highly in order of the boundary between deposited metal zone and heat affected zone, deposited metal zone, heat affected zone. From this results, it is demanded that the stress for safety design of machine components using SM45C butt-welded steel rods must be selected in the region of the lowest infinite life of heat affected zone.

• 대한지구과학교육학회지
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• 제8권1호
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• pp.25-34
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• 2015

The objective of this study is to clarify how high school students recognize the mental model of the global environment and how they conceptualize the environment. Using the drawing and interview, 25 high school students participated in the survey and were asked to visualize the environmental elements of the global environment and describe the environment they portrayed. The dominant mental model in the present was Mental Model 3: the environment as a place impacted or modified by human activity. Yet, the partial mental model in the future was Mental Model 2: the environment as a place that supports human life. The implications to environmental science education are explored.

• 한국전자거래학회지
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• 제9권3호
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• pp.57-77
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• 2004

본 연구의 목적은 건설도면정보 공유를 위한 XML 스키마 개발 및 STEP 연계기술을 개발하는 것이다. 이를 위해 STEP/AP202를 바탕으로 도면정보를 표현하는 STEP 데이터 모델 개발, ISO 표준도면을 관리할 수 있는 STEP 데이터 검색기 개발, 그리고 벡터형식으로 표현되는 도형정보와 각 도형요소가 연관되는 외부적 기술 자료들이 상호 유기적으로 통합될 수 있는 구조를 지원하기 위한 XML 스키마를 개발하였으며, 자재정보와 법규체크를 대상으로 STEP과 XML의 상호 연계를 통한 도면정보 공유방안을 제시하였다. 따라서 제안된 건설도면정보 공유방안을 통해 건설산업 전반에서 발생하는 건설도면을 포함한 각종 외부문서, 기술문서들의 상호 연계로 건설설계 업무지원 및 정보의 최적화된 관리가 가능할 것이다.

• 대한기계학회논문집A
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• 제40권10호
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• pp.879-886
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• 2016

CNG 압력용기 제조를 위한 딥드로잉 공정에 사용되는 트랙트릭스 다이는 블랭크 홀더 없이 성형을 가능하게 한다. 기존의 연구에서는 D.D.I. 공정의 1차 딥드로잉 공정에 트랙트릭스 곡선을 다이에 적용하였을 뿐, 다이의 수명향상 및 제조원가 절감을 위한 형상 최적화에 관한 연구는 전무한 실정이다. 이에 본 논문에서는 트랙트릭스 곡선의 점근선 이동을 통하여 다이의 높이에 따른 딥드로잉 공정의 유한요소해석을 수행하였다. 또한 펀치의 성형하중에 따른 다이 응력집중부의 Von-Mises 응력을 분석하여 최적의 트랙트릭스 다이 형상을 제시하였다.