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장호창(Ho-Chang Jang),신창훈(Chang-Hoon Shin),이정환(Jeong-Hwan Lee) 한국가스학회 2014 한국가스학회지 Vol.18 No.3
비전통가스 자원을 개발하기 위해서는 저류층 암체의 치밀성을 도출하는 물성 분석이 요구된다. 특히, 치밀가스와 같은 비전통자원의 경우, 전통적인 천연가스전과 비교하여 투과도가 특징적으로 낮아서 통상적인 물성 측정 기술을 적용하기에는 한계가 있다. 이에 본 연구에서는 비정상상태에서 저투과성 암체의 물성을 측정하는 압력펄스감소법을 기반으로 실험 장치를 개발하였다. 개발된 기기는 우리나라 경상분지 치밀사암의 물성 분석에 이용되었으며, 각 시료의 투과도와 공극률을 도출하였다. 또한, 실험을 통해 얻은 자료와 이론해 모델 간의 회귀분석 결과 모두 0.96 이상의 상관계수를 나타냈으며, 개발된 장치에 대한 높은 신뢰성을 확인할 수 있었다. To develop a unconventional gas reservoir, an analysis of tight rock property are required. Especially, conventional measurements are difficult to be applied to unconventional resources such as tight gas reservoir because the permeability are extremely low compared to a conventional gas reservoir. In this study, an apparatus was developed for measuring low permeability and porosity based on a pressure pulse decay method under unsteady state conditions. The apparatus was applied for measuring the porosity and permeability of tight sand core samples from Gyeongsang basin in Korea. As a validation of the measurement, regression analysis was carried out using the dimensionless pseudo-pressure between the measured data and analytical solution. The results show the correlation coefficients above 0.96. Therefore, it is believed that the apparatus has a high accuracy.
초등학교 사회과의 환경 문제 해결과정 분석 및 수업 모형 개발 연구
장호창(Ho-Chang Jang),남영숙(Young-Sook Nam) 한국환경교육학회 2007 環境 敎育 Vol.20 No.4
The purpose of this study is to develop instruction model of environmental problem process focused with environmental justice. This study has analyzed environmental problem solution process in social studies of elementary school from 4th grade to 6th grade with it. The results of this study are as follows. First, social studies of elementary school didn't show distributive justice in environmental problem solving process. Second, procedural justice existed, but offered information is lacking to each main group. Third, substantive justice was emphasized personal viewpoint. We developed instruction model of environmental problem solving process based upon the results. Component of instruction model is problem analysis, distributive justice, procedural justice, substantive justice and evaluating a solution. Timely, teachers can use and can apply it in social studies class. In conclusion, it is strongly recommend to teach environmental education linked with environmental justice. It enables us enhance a new awareness and attitudes towards sustainable development.
학습자 중심의 지속가능발전교육을 위한 학습자 교육환경 분석 연구
장호창(Ho Chang Jang),남영숙(Young Sook Nam) 한국환경교육학회 2014 環境 敎育 Vol.27 No.1
The purpose of this study is to research the difference in learners’ educational environment in accordance with regions. For this, first, indicators were developed, and regions were classified. Second, schools were selected as representative of the classified regions. Third, indicators attribute of classified region was revealed. Fourth, it was revealed by survey that characteristics of learners’ educational environment had spatial, temporal, and relational features. The results of the study are as follows. First, educational environment differed by region and learner. Second, learners’ educational and regional environment were correlated. Conclusively, for effective ESD, educational planning and policy should consider these points.
지속가능발전교육에 대한 학습자 흥미 측정 도구 개발과 적용
장호창(Ho-Chang Jang),남영숙(Sook Young Nam) 한국환경교육학회 2012 環境 敎育 Vol.25 No.4
The purpose of this study is discussion about learners interesting and to develop tool for it about ESD (education for sustainable development) subject and to measure it. For this purpose, we researched 4, 5, 6 grade elementary school student in D city. This research consisted in literature and measurement learners interesting. According to the result, firstly, the interesting measurement tool for ESD has realm of knowledge, interests, values, emotions. Knowledge is measured by a multiple-choice, and the rest was measured with a 5-point Likert scale. Secondly, the result of measurement gives low knowledge and each of imbalance. Knowledge and emotion is relatively lower than others. In conclusion, ESD should improve knowledge and to balance concern, value and emotion each other. ESD should consider the step-by-step improvement of knowledge and the learners positive emotions.
남영숙(Young-Sook Nam),장호창(Ho-Chang Jang),박태윤(Tae-Yoon Park),문윤섭(Yoon-Sub Moon),김찬국(Chan-Kook Kim),우정애(Jung-Ae Woo),안미영(Mi-Young Ahn),지승현(Seung-Hyun Ji),문경희(Kyoung-Hee Moon) 한국환경교육학회 2010 環境 敎育 Vol.23 No.4
The purpose of this study is to develop an environmental report for children and to examine the learning effects of the environmental report on elementary school students. This study is carried out by the survey. The results of this study are as follows. First, the Environmental Report for children, which consists of 8 subjects related to the environmental policy in Korea. 1) Green Growth and Sustainable Policy, 2) Climate Change, 3) Water Supply and Sewage Policy, 4) Sustainable Watershed Management, 5) Conservation of Biodiversity, 6) Resource Recirculation, 7) Environmental Health for Children, and 8) Environmental Dictionary, was systematically developed. Second, the Environmental report developed was examined the effects to third and fourth grade elementary school students in Incheon and Daegu. By dividing elementary school students into two groups: A Control group and an Experimental group, the lessons were respectively executed. In conclusion, the Environmental Report leads to good effects when it is applied to both Environmental Education and the public relation of the Environmental Policy in Korea. Finally, it would be expected to be efficient in learning Sustainable Development and the Environmental Policy.
지속가능 발전교육 활성화를 위한 환경교육 시범학교 운영 개선 방안
남영숙(Young-Sook Nam),장호창(Ho-Chang Jang),지승현(Seung-Hyun Ji) 한국환경교육학회 2008 環境 敎育 Vol.21 No.4
The purpose of this study is to evaluate an environmental education model school and to devise proper plans for school management through the school eco-audit, The results of this study are as follows. Firstly, environmental education model school is analysed from view point of planning and executing. So that, environmental education model school put emphasis on executing rather than planning. It requires to emphasis planning, for example, establishing environment management system, ecological measures, environment reporting. Secondly, environmental education model school is in the incipient stage as the environment prevention. The preparation for planning is inefficient compared to the ecological pretest of school eco-audit, In the aspect of ecological measures and education, the participant of all the school staff is unsatisfactory. In conclusion, the school eco-audit could be presented as a key role for establishing basic organizational conditions, ecological measures and education for sustainable development, It is necessary to drive environmental education model school to achieve extended effect for sustainable society.