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金渶鉉 전북대학교 의과학연구소 1983 全北醫大論文集 Vol.7 No.2
The patients with trichotillomania rarely encountered in clinical practice were inspected from the psychiatric point of views. The literatures on trichotillomania were briefly reviewed with discussion of the clinical and psychodynamic aspects on hair-pulling. The results of this study are as follow. 1. The disorder involving the scalp only occurred most frequently in the early adolescence and thnded to be chronic. 2. Emotional problems in the maternal relationship appear to contribute significantly to the development of hair-pulling 3. All the patients sought dermatological help & herb medication prior to psychiatric referral; most of them had been unsuccessfully treated. 4. Early recognition of psychogenic etiology of trichotillomania & prompt psychiatric consulta- tion are strongly required.
김영현 한국지리환경교육학회 2018 한국지리환경교육학회지 Vol.26 No.4
The purpose of this study is to understand concept change process through elementary school students’ geography lesson. We interpreted the 6th grade student the process to change of geographical concept which appeared in social studies ‘environment and way of life of neighboring country’ lesson as mental model. Through the interviews and drawings, we observed the process of change of concept through elementary school students early concepts and lessons on two concepts of ‘why is Russia cold?’ And, ‘why happen earthquakes in Japan a lot?’ The results are as follows. First, the concept of geography in elementary school students was not based on concrete reasons and grounds, and there were many cases of conceptual composition that relied on intuitive judgment or emotion. Second, the initial concept(misconceptions) of the research participants seemed to change into a formal geography concept through the lesson, but there were many cases in which the mental model analysis justified their misconceptions by mixing knowledge and information learned in the lesson. Third, the change of geographical concept of elementary school students is not ‘whether or not misconceptions are replaced with correct concepts.’ This is due to the nature of geographical areas based on the fusion of human and natural thinking Seems to have originated. In order to fully understand the change of elementary students’ geographical concepts, it is necessary for the teacher to change the idea that the initial concepts and misconceptions of students in geography lesson can be taken as a starting point of learning rather than a subject to be removed through lesson. 본 연구는 초등학생의 지리수업을 통한 개념변화과정을 이해하기 위한 것으로, 초등 6학년 사회과 ‘이웃나라의 환경과 생활모습’ 수업경험에 나타난 지리개념변화과정을 정신모형(Mental Model)으로 해석하였다. ‘러시아는 왜 추울까?’, ‘일본에 지진이 많이 발생하는 이유는 무엇일까?’ 라는 두 개념에 대한 초등학생의 초기개념과 수업을 통한 개념변화의 전 과정을 종합한 정신모형은 다음과 같이 나타났다. 첫째, 초등학생의 지리개념은구체적인 이유나 근거에 기반을 두어 형성·변화하지 않으며 직관적 판단이나 감정에 의존한 개념구성의 사례가많았다. 둘째, 연구 참여자들의 초기개념(오개념)은 수업을 통해 공식적인 지리개념으로 변화한 것처럼 보였지만정신모형 분석 결과 오히려 수업에서 학습한 지식과 정보를 혼합하여 자신의 오개념을 정당화하는 사례가 많았다. 셋째, 초등학생의 지리개념변화는 ‘오개념이 올바른 개념으로 교체되는가?, 되지 않는가?’ 같이 양자택일이아닌 다양한 양상을 나타내는데 이는 인문적 사고와 자연적 사고의 융합을 기반으로 한 지리영역의 특성으로부터 기인한 것이라 할 수 있다. 초등학생의 지리개념변화를 교사가 온전히 이해하기 위해서는 지리수업에서 학생들의 초기개념 또는 오개념을 수업을 통해 제거해야할 대상이 아닌 학습의 출발점으로 삼을 수 있는 발상의 전환이 필요하다.
김영현,임동근,정재우,지준근* 순천향대학교 부설 산업기술연구소 2015 순천향 산업기술연구소논문집 Vol.21 No.2
The hybrid power generation system is currently an evolving field because it is equipped with specialized features to meet the renewable energy power plants. In this paper, MC34063 is controlling the voltage of the wind turbine and PV array. It was then allowed to drive the load. Also we made stable distributed generator using the charge/discharge circuits without extra energy. It has the purpose of efficient generation in small area. Thus, each of generators is connected to DC-DC converter. And it combines the two energy sources in real time. This system provides a chance to use energy more effectively.