• 한국환경교육학회지:환경교육
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• 제20권4호
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• pp.1-11
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• 2007

The purpose of this study is to develope energy eco-audit evaluation scheme for the sustainable energy management at schools in accordance with education for sustainable development. Energy eco-audit evaluation scheme was developed through critical review of preexisting evaluation methods, consensus searching for the process from field. The results of this study are as follows. The school energy eco-audit evaluation scheme has three criteria: data collection, energy program, and environmental review. First, criteria of data collection includes general affairs, school building construction, and energy use. Second, criteria of energy program stresses school administration system such as the democratic decision-making process and structures. Third, criteria of environmental review includes reporting process and preparing teaching/learning materials for sustainable energy management. In conclusion, school energy eco-audit evaluation scheme could find a new way to achieve extended effect for sustainable energy management in school. It also could continue to seek opportunities to raise their awareness of energy issue and environment. School committee and whole school are involved to continue to implement present action plan and prepare updated plan in order to reduce environmental impact in school. By doing so, it would be possible to play important role in both school administration and education for sustainable development.

• Nuclear Engineering and Technology
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• 제54권7호
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• pp.2564-2571
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• 2022

SiPMs are generally coupled into whole columns in gamma energy spectrum measurement, but the relationship between the distribution of whole SiPM columns and the energy resolution of the measured energy spectra is rarely reported. In this work, ∅ 3 × 3 inch NaI scintillator is placed on an 8 × 8 SiPM array, and the energy resolution of the ¹³⁷Cs peak at 662 keV corresponding to the γ-ray is selected as a reference. Each SiPM is switched to explore the influence of the number of SiPM arrays, distribution position, and reflective layer on the energy resolution of SiPMs. Results show that without coupling, the energy resolution is greatly improved when the number of SiPMs ranges from 4 to 32. However, after 32 slices (the area covered by SiPMs relative to the scintillator reaches 25.9%), the improvement in energy resolution and total pulse count is not obvious. In addition, the position of SiPMs relative to the scintillator does not exert much impact on the energy resolution. Results also indicate that by adding a reflective film (ESR), the energy resolution of the tested group increases by 10.38% on average. This work can provide a reference for the design and application of miniaturized SiPM gamma spectrometers.

• 환경정책연구
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• 제8권4호
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• pp.51-73
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• 2009

오늘날 환경교육의 중요성이 대두되고 있음에도 불구하고 환경교육이 에너지 절감 또는 쓰레기 절감에 미치는 정량적 효과에 대한 연구는 거의 전무한 실정이다. 본 연구는 환경교육이 집중적으로 행해지는 집단과 일반적으로 행해지는 집단의 에너지 및 쓰레기 절감 효과를 정량적으로 분석한다. 본 연구의 분석결과, 환경교육의 강화는 에너지 절감 및 쓰레기 절감에 부분적으로 긍정적인 영향을 미치는 것으로 나타났다. 구체적으로 환경교육이 집중적으로 이루어진 학생들 가정에서의 제 요금 및 학교에서 남기는 음식의 양이 일반적인 환경교육이 이루어지는 학생들 가정에서의 제 요금 및 학교에서 남기는 음식의 양보다 유의하게 낮은 것으로 나타난다. 본 연구의 결과는 에너지 절감 및 쓰레기 절감을 위해 환경시범학교 등과 같은 다양한 환경교육 정책의 강화가 필요하다는 것을 보여준다고 할 수 있다.

• 한국환경교육학회지:환경교육
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• 제10권2호
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• pp.325-338
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• 1997

Review of the global change in various energy usages and resulting environmental impacts were made in terms of population increase, economic development and energy consumption. Greater use of fossil fuels in past couple of centuries give rise to acid rain and gradual climate changes mainly due to Green House inducing gases emissions from fossil fuel combustion. In view of the forthcoming Kyoto conference in December, various alternative options were assessed. To cope with rapidly developing robust Korean economy, the alternative energy options for the sustainable development in 21st Century would be the wider use of Nuclear Energy in parallel with constrained use of fossil fuel and renewable energy development. However there are many hurdles to overcome. One of the most important element is to improve public acceptability of those alternatives. Since public acceptance depend heavily upon individual perception on specific energy technology applications, the basic energy technologies education from primary up to high school education and the related curriculum organization is important. The suggested improvement in education for Nuclear Energy Application was made on the basis of advanced industrial countries with substantial Nuclear Energy Application programs.

• 한국과학교육학회지
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• 제7권1호
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• pp.33-39
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• 1987

The contents of current physics textbooks in Korean high school and those of the forergn country (America and Japan)have been investigated. Especially the contents related to energy have been examined. Comparing and analyzing the results, we have suggested the method of improvement of the energy education in high school curriculum.

• 한국환경교육학회지:환경교육
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• 제19권3호
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• pp.102-113
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• 2006

The purpose of this study is to devise proper plans for sustainable energy management in schools through applying school eco-audit to energy field. This study is performed by literature review and the analysis of case study. This study analyzes the energy-saving model school according to the three cores of eco-audit such as school administration system, teaching-learning method, and ecological policy, and the result of the study is as followings. First, according to the analysis of school administration system for energy education programs, the participation of all the school staff is very low, and the democratic decision-making system is unsatisfactory. Second, according to the analysis of teaching-learning method, the program is mainly managed by teacher-oriented method not by learner-oriented one. The effect on the education of energy-saving program is a little improved in cognitive area, but is insufficient in affective area. Third, in the aspect of the ecological policy, the practical energy-saving effect in schools is unsatisfactory, and shows the difficulty of continuing application of the program. Consequently, it is desirable to integrate the energy-saving program with the eco-audit for sustainable energy management in schools. Implementation of the energy eco-audit in schools for the sustainable development education as teaching-learning method could achieve extended effect for the earth environmental conservation.

• 한국분말재료학회지
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• 제25권1호
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• pp.7-11
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• 2018

In this study, we synthesize tungsten oxide thin films by electrodeposition and characterize their electrochromic properties. Depending on the deposition modes, compact and porous tungsten oxide films are fabricated on a transparent indium tin oxide (ITO) substrate. The morphology and crystal structure of the electrodeposited tungsten oxide thin films are investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). X-ray photoelectron spectroscopy is employed to verify the chemical composition and the oxidation state of the films. Compared to the compact tungsten oxides, the porous films show superior electrochemical activities with higher reversibility during electrochemical reactions. Furthermore, they exhibit very high color contrast (97.0%) and switching speed (3.1 and 3.2 s). The outstanding electrochromic performances of the porous tungsten oxide thin films are mainly attributed to the porous structure, which facilitates ion intercalation/deintercalation during electrochemical reactions.

• Journal of Radiation Protection and Research
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• 제40권3호
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• pp.132-146
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• 2015

To develop tailored elementary, middle, and high school textbooks suitable for understanding the nuclear energy and radiation, quantitative and qualitative research was carried out in parallel, which included nine steps to ensure the validity of content and structure. The elementary, middle, and high school students wanted to acquire information used in their daily lives, including the definition of nuclear energy and radiation, principles and status of nuclear power generation, and information about irradiated food, medical radiation, and radiation in life. In the evaluation of the effects of textbook contents according to the educational requirements of each school level, high suitability frequencies (>80%) were shown for the human character, education goals, curriculum goals, evaluation method, and education time. At some levels, the high suitability frequencies (>70%) were shown for the education grade, education type, and textbook type.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권4호
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• pp.2020-2037
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• 2017

In order to improve the energy efficiency of n-Epidemic routing protocol in opportunistic networks, in which a stable end-to-end forwarding path usually does not exist, a novel adjustment strategy for parameter n is proposed using learning atuomata principle. First, nodes dynamically update the average energy level of current environment while moving around. Second, nodes with lower energy level relative to their neighbors take larger n avoiding energy consumption during message replications and vice versa. Third, nodes will only replicate messages to their neighbors when the number of neighbors reaches or exceeds the threshold n. Thus the number of message transmissions is reduced and energy is conserved accordingly. The simulation results show that, n-Epidemic routing protocol with the proposed adjustment method can efficiently reduce and balance energy consumption. Furthermore, the key metric of delivery ratio is improved compared with the original n-Epidemic routing protocol. Obviously the proposed scheme prolongs the network life time because of the equilibrium of energy consumption among nodes.

• 한국초등과학교육학회지:초등과학교육
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• 제40권4호
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• pp.498-509
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• 2021

본 연구에서는 수력에너지에 관한 융합인재교육 프로그램을 개발하고 초등학생들에게 적용하여 에 너지소양과 창의적 문제해결력에 미치는 영향을 알아보고자 하였다. 이를 위하여 초등학교 6학년 학생 29명을 대상으로 연구를 실시하였고, 에너지소양과 창의적 문제해결력에 관한 사전·사후 검사 결과를 분석하였다. 본 연구의 결과는 다음과 같다. 첫째, 수력에너지에 관한 융합인재교육 프로그램은 초등학생들의 에너지소양에 긍정적인 영향을 주었다. 둘째, 수력에너지에 관한 융합인재교육 프로그램은 초등학생들의 창의적 문제해결력에 긍정적인 영향을 미쳤다. 셋째, 수력에너지에 관한 융합인재교육 프로그램을 마친 후, 학생들은 에너지 및 과학에 대한 관심 및 흥미가 높아졌고, 일상생활과 연계하려는 태도를 가지게 되었다. 융합인재교육 프로그램을 통해 학생 중심 수업으로 학생들이 스스로 문제 해결 계획을 수립하여 수력에너지를 발생시키고, 이를 활용해보는 과정에서 의미 있는 성과를 거둔 것으로 보인다.