• 한국환경교육학회지:환경교육
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• 제10권2호
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• pp.121-132
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• 1997

The objective of this research is to understand the current field and composition of environment related terminology used in middle and high school textbooks, to find out uniformity and relationship between them, and development for the future establishement and replacement in the environmental education, simultaneously. The results of this study are as follows: 1. The terms used in middle school textbooks were found out to be 334, while those used in high school were 717. Total terms used were 870(759 kinds) and those recorded in the environmental terminology dictionary were 362 including synonyms. 2. Of those 870, 211 terms(24.25%) which were the same words have been used in interlinked connection with the Middle and High schools. While 136 terms(15.63%) have been used in the only middle, and 524 terms(60.23%) have been used in the only high schools. In middle and high school environmental tort books 211 (24.25%) terms were the same interlinked terms. Of those extracted terms, 136(15.63%) were used in the middle school 'environmental' textbooks and in high school, 524(60.23%) were used in 'environmental science' book. These results shows that there is big gap between middle and high school contents and we will need mere consideration in selecting the terms and better substance. 3. The same terminologies used in both middle and high schools were total number of 676. In those terms 257 kinds(76.26%) were used in middle school 'environmental' text books, and 563 kinds(78.52%) in high school 'environmental science' text books. Here are some details : 1) Terms used as same meaning but different in expression in middle school : 83 kinds, 192 terms(11.99%). 2) Differently expressed in the same tort book in kiddie school - 20 kinds(2.64%) in high school - 61 kinds(8.04%) 3) Differently expressed terms between middle and high school : 51 kinds(6.72%) 4) Same meaning in 3 expressions or more : 19 kinds 4. Of the examined terms 362(including 43 synonyms) were defined in environmental dictionary which is 41.8% of the total words. In the future specialization in utmost fields will be needed 5. When dividing those examined terms according to the middle and high school curriculum, the most terms were used in nature and pollution fields following environmental preserving, artificial environment and environmenatal counterplan. In middle schools the most used terms were in the field of environment pollution, preservation, counterplan, and santiation. There results reflects the education goals and objectives of middle schools. But for the middle school 'environment' curriculum moret uniform distribution are needed and for the high schools' 'enironmental science' program, the fields in artificial environment, industrization, urbanization, and sanitation should be intensified.

• 한국지구과학회지
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• 제27권7호
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• pp.715-722
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• 2006

This study intended to find evidence of changes in teacher beliefs of teaching and learning and a case of infusing research experiences in teaching modules since their research participation. As part of this study, twenty three science and math teachers in Korea were provided with science research labs and field experiences in the University of Iowa for three weeks. The research units that teachers participated in for three weeks covered seven fields of subjects such as: geology, astronomy, chemistry, physics, mathematics, computer science, and environmental engineering. In the course of this study, the effectiveness of science research participation program was explored in terms of changing teacher beliefs and their production of teaching modules based on their research. This study especially focused on identifying changes of beliefs on science teaching and learning after participating in the research. A case study of a participant teacher was also conducted by comparing descriptively teaching modules before and after experiencing the program. It was found that the program affected the new modules and the research experiences affected participants' beliefs toward student centeredness.

• Nuclear Engineering and Technology
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• 제54권12호
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• pp.4679-4683
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• 2022

Environmental radiation monitoring is required to protect from the effects of radiation in industrial fields such as nuclear power plant (NPP) monitoring, and various gamma camera systems are being developed. The purpose of this study is to optimize parameters of a diverging collimator composed of pure tungsten for compactness and lightness through Monte Carlo simulation. We conducted the performance evaluation based on spatial resolution and signal-to-noise ratio for point source and obtained gamma images and profiles. As a result, optimization was determined at a collimator height of 60.0 mm, a hole size of 1.5 mm, and a septal thickness of 1.0 mm. Also, the full-width-at-half-maximum was 3.5 mm and the signal-to-noise ratio was 53.5. This study proposes a compact 45° diverging collimator structure that can quickly and accurately identify the location of the source for radiation monitoring.

• 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.

• 한국세라믹학회지
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• 제54권5호
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• pp.349-365
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• 2017

Graphene has attracted a lot of attentions due to the unique electrical and optical properties. Compared with the noble metal plasmons in the visible and near-infrared frequencies, graphene can support surface plasmons in the lower frequencies of terahertz and mid-infrared and it demonstrates an extremely large confinement at the surface because of the particular electronic band structures. Especially, the surface conductivity of graphene can be tuned by either chemical doping or electrostatic gating. These features make graphene a promising candidate for plasmonics, biosensing and transformation optics. Furthermore, the combination of graphene and metasurfaces presents a powerful tunability for exotic electromagnetic properties, where the metasurfaces with the highly-localized fields offer a platform to enhance the interaction between the incident light and graphene and facilitate a deep modulation. In this paper, we provide an overview of the key properties of graphene, such as the surface conductivity, the propagating surface plasmon polaritons, and the localized surface plasmons, and the hybrid graphene/metasurfaces, either metallic and dielectric metasurfaces, from terahertz to near-infrared frequencies. Finally, there is a discussion for the current challenges and future goals.

• 한국환경교육학회지:환경교육
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• 제5권1호
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• pp.34-46
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• 1993

The international environmental activity and environmental education began in 1970's. Environmental education in Korea was emphasized since the Forth National Curriculum. The Environmental Curriculum was regarded as one of the most important part in the Sixth National Curriculum in Korea. Environment-related reference texts of Elementary school were already developed. Soon, 'Environment' of middle school and 'Environmental Science' of high school will be developed. The purpose of this study were to analyse environment-related texts in the Fifth National Curriculum and to measure how much environmental education has achieved. As a environmental text for regular class, selected the environmental part in 'Science Part 1' and as environment-related reference text, 'Survival and Environment'. The environmental part of 'Science Part 1' was unit [Life and Environment]. According to the analysis of objectives, most of unit objectives were not stated in a detailed and precise manner. When the goals of environmental education were divided into four fields as follows, knowledge and information, skill, thinking and attitude, behavior and participation, unit objectives were mostly emphasized on knowledge and information of environment, exactly 44.5% of unit objectives and 89.6% of subunit objectives. The degree of relationship between unit objectives and contents was low. All the Check up-problems were about knowledge and information of environment. Environment-related reference text, 'Survival and Environment' was the only reference text for high school students in Korea and was organized in the form of the regular curriculum text. It was developed in Korean Education Development, Center with support of Korean Environmental Ministry in 1990. According to the analysis of 'Survival and Environment', the objectives of units and subunits were less stressed on knowledge and information than those of unit [Life and Environment] in the environmental part of 'Science Part 1' On the other hand, they were a little more stressed on skill, thinking and attitude, behavior and participation. And fifteen of all the seventy subunit objectives were not related with contents. In organization, this text included Thinking problems, Experiments and Inquiries, Reading, Developed studies and Check up-problem etc. It was remarkable that Inquiries leaded to individual activities and Developed studies to group discussions or individual inquiries. And as Check-up problems were presented as a form of activities, students could achieve many various objectives at the same time by solving one problem. To measure the achievement of environmental education by questionnaire, 497 high school students in total were selected from five different schools. Scores in subtest 'behavior and participation' and subtest 'thinking and attitudes' were 13.19 and 18.18, respectively. Actually, most students had a positive thinkings and attitudes in their hearts about environmental problems, but many of them actually did not take actions to solve environmental problems and to protect environment. Scores in subtest 'knowledge and information' and subtest 'skill' were 10.76 and 10.81, respectively. The higher the score students got in 'knowledge and information', the higher the score in 'skill'. It implies that learning of skills is based on learning of knowledges and informations about environment has not always ensured positive thinkings and attitudes or active behaviors and participations to solve environmental problem.

• 한국환경교육학회지:환경교육
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• 제22권1호
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• pp.97-109
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• 2009

The purpose of this study is to grasp the degree of recognition of the ESD(Education for Sustainable Development) form Technology Home Economic teachers in high schools, to analyze contents related to the ESD within the textbooks, and to propose the improvement method of the textbooks. As a result, first, the degree of recognition on the ESD was less than about 30.1% in Technology Home Economic teachers. Second, the content and factor criterions for the ESD were developed on the basis of the previous studies. They are suitable for applying to the Vehicle Chapter in the textbooks and are including 9 contents and 7 factors, respectively. Third, the contents related to the ESD within a Technology. Home Economic textbook showed 36.1% in Technology, 33.8% in Home Economics including social and cultural(44.7%), environmental(47.1%), and economic contents(8.2%). But they in the Vehicle Chapter within the textbooks presented 69.1%, 4.8%, 26.1% in social and cultural, environmental, and economic contents, respectively. Finally, the improvement method of the new textbook for the Vehicle Chapter is to adopt issued factors including the suitable adjustment on the vehicle structure and safety as well as the supplement of environmental contents related to the ESD. In addition, it is necessary to contain the contents such as the developing process of environment-friendly vehicles, the economically sustainable consumption strategy, and the cause-and-effect relationship with the global warming in the new textbook.

• 공학교육연구
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• 제7권4호
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• pp.5-15
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• 2004

대학이 안고 있는 심각한 이공계 위기는 이제 특정 대학을 넘어 전국적으로 확대되고 있는 상황이다. 이공계의 위기는 장래 국가 발전의 원동력인 이공계 인력의 질적 및 양적 감소를 초래하여 경쟁력 상실 및 장기간의 경제 침체를 유발할 가능성이 높다. 따라서 우수한 인재를 이공학 계열로 유도하는 문제는 이제 대학만의 관심이 아니라 정부 차원에서도 접근 중이다. 이러한 위기의 극복과 우수한 인재 양성과 더불어 장래 대학의 신입생이 될 고등학교 학생들에게 공학에 관한 올바른 지식 및 동향에 관한 정보를 제공하고자 공주대학교 공과대학에서는 2001년도부터 공학교실을 운영하고 있다. 공학적 이론과 실험실습을 통한 공학교육을 수행하여 고등학교 학생들에게 직접적인 공학적 경험을 제공하여 능동적인 사고방식을 하도록 유도하는 것 또한 공학교실의 목적이다. 본 논문은 최근 4년간의 공학교육 경험과 학생들의 설문 조사를 정리한 것으로 향후 보다 나은 공학교육 프로그램을 개발하고자 정리되었다.

• 한국환경생태학회지
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• 제30권1호
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• pp.48-57
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• 2016

예당저수지의 수변 농경지의 어류와 양서류 분포 특성을 파악하고자 실시되었다. 이를 위해 비수변 농경지를 대조군 지역으로 설정하고 수변 농경지의 어류와 양서류의 개체수 및 생물량 비교, 어류와 양서류 분포에 영향을 주는 환경요소 분석, 시기별 개체수 변동 특성을 연구하였다. 전체 조사 대상지역에서 포획된 어류종수는 8과 13종이며, 양서류 종수는 5종이었다. 수변 농경지에서는 미꾸리과 어류, 붕어, 잉어 등의 13종의 어종이 포획되었고, 비수변 농경지에서는 미꾸리과 어류, 붕어 등의 3종의 어종이 포획되었다. 양서류는 황소개구리, 참개구리, 청개구리, 한국산개구리, 옴개구리 총 5종의 유생이 포획되었는데, 비수변 농경지에서는 5종의 양서류 유생이 포획되었고, 수변 농경지에서는 2종의 양서류 유생이 포획되었다. 수변 농경지와 비수변 농경지의 어류와 양서류 분포 특성을 분석한 결과, 수변 농경지에는 잉어과 어류가 많이 포획되었으며, 비수변 농경지에는 미꾸리과 어류가 많이 포획되었다. 어류의 분포에 영향을 주는 환경요소 분석결과, 잉어과 어류는 겨울철에 담수되고, 예당저수지와의 거리가 가까운 농경지에서 주로 출현할 가능성이 높으며, 미꾸리과 어류는 산간 저수지로부터 용수가 공급되고, 논과 배수로가 잘 연결되어 있는 농경지를 선호하는 것으로 나타났다. 양서류의 경우, 비수변 농경지에서 수변 농경지보다 양서류의 유생이 많이 포획되었다. 수변 농경지에서는 황소개구리가 우점하였고, 비수변 농경지에서는 참개구리가 우점하였다. 황소개구리 유생의 분포에 영향을 주는 주요 환경요소는 겨울철에 담수되고 예당저수지에 가까운 농경지에서 출현할 가능성이 높았고, 참개구리의 경우는 산까지의 거리가 가깝고 예당저수지까지의 거리가 멀수록 출현할 가능성이 높았다.

• 과학교육연구지
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• 제34권1호
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• pp.84-92
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• 2010

본 연구에서는 유 초 중등 및 일반인을 대상으로 개발된 환경교육 교수 학습 자료의 유형과 내용을 분석하고, 또한 학교 급간별로 어떠한 특징이 있는지 분석하였다. 전반적으로 웹기반 멀티미디어 학습자료가 포함하고 있는 환경교육 내용 영역은 자연 환경 304건(22.1%), 환경 오염 250건(16.5%), 환경보전대책 187건(12.4%)으로 이들 영역에 치중되어 있었다. 교수 학습 자료 유형은 수업지도안(934건, 61.8%), 다큐멘터리(156건, 10.3%), 정보문자(128건, 8.5%) 등이 가장 높은 비중을 차지하고 있었다. 학교급간별 멀티미디어 교수-학습 자료를 분석한 결과 초등학교(796건, 35.3%)와 중학교(588건, 26.1%)에 치중되어 있는 것으로 나타났으며 일반인을 대상으로 하거나 고등학생을 대상으로 한 학습 자료는 부족한 것으로 나타났다. 세계적으로 환경교육의 내용이 전통적인 환경 오염 문제 중심에서 벗어나 지속가능 교육(ESSD)을 특히 강조하며, 그 외에 생태계, 인간과 자연과의 관계, 건전한 소비 등으로 확대되는 추세를 감안하여 시대적 요구를 반영한 다양하고 균형 있는 교육 자료가 개발될 필요가 있다.