우리나라 기업의 倒産 원인과 그 개선방안

양기창 中央大學校經營大學 1971 經營論集 Vol.31 No.-

대기 중의 증발 현상에 대한 중등학교 화학전공 교사들의 개념 변화 과정에 대한 연구

양기창,백성혜,Yang, Gee-Chang,Paik, Seoung-Hey 대한화학회 2008 대한화학회지 Vol.52 No.1

이 연구에서는 대기 중에서 물이 증발하는 현상을 상평형 그림으로 설명하는 중등학교 화학전공 교 사들의 선개념을 알아보았다. 이 연구에서 개발한 설문을 실시하기 위하여 25명의 화학전공 과학 교사들을 선 정하였으며, 그 중에서 6명에게 설문지의 응답에 대한 생각을 면담으로 알아보았다. 연구 대상자 중 10명의 교 사를 선정하여, 이 연구에서 개발한 수업에 의해 선개념이 변화하는지 알아보았다. 연구 결과, 많은 교사들이 물의 증발 현상을 상평형 그림으로 설명할 수 없다고 생각하는 것으로 밝혀졌다. 또한 그들은 증기 압력과 상 평형 그림의 세로축과도 관련이 없다고 생각하였다. 그러나 그들은 수업을 통해 지구과학에서 다루는 포화 수 증기량 곡선을 적용함으로써 상평형 그림의 증기 압력 곡선을 설명할 수 있다는 점을 깨달았다. 그들은 이미 포화 수증기량 곡선에서 물질의 포화 상태와 불포화 상태, 평형 이동 과정 등에 대한 개념을 적용하는 과정을 알고 있었기 때문이다. 지구과학과 화학을 통합한 과학 수업을 통한 개념 변화에 의해 교사들은 증발과 같은 자연 현상을 상평형 그림으로 이해할 수 있게 되었다. In this study, preconceptions held by chemistry major secondary school science teachers were searched in relation to explanations of water evaporation phenomena with phase equilibrium diagrams. 25 chemistry major science teachers were selected to complete questionnaires developed in this study and 6 among of them were selected to participate in follow-up interviews. Among these, 10 participants were selected for an evaluation of the change of their preconceptions through lessons developed in this study. From the results, it was found that many teachers believed that the phase equilibrium diagram could not explain water evaporation phenomena. They also thought that there was no relation between vapor pressure and the vertical axis of the phase equilibrium diagram. However, after the lessons in earth science, they recognized that the vapor pressure curve of the phase equilibrium diagram could be explained by adopting a saturated vapor curve. Because they had known the process of application the conceptions of saturated situation, nonsaturated situation, process of equilibrium movement in saturated vapor curve. They could understand natural phenomena such as evaporation with the phase equilibrium diagram through a change in their conceptions as guided from science lessons integrating earth science and chemistry.

불사조 사랑 2

양기창 푸른사상사 2022 푸른사상 Vol.40 No.-

建設市場開放의 影響과 對應方案에 관한 硏究

梁氣彰 경기대학교경영대학원 1995 最高經營者課程 經營硏究 Vol.10 No.-

수업 반성 저널을 통해 살펴 본 초등 교사의 과학 수업 반성의 특징

양기창 ( Ki Chang Yang ),윤혜경 ( Hye Gyoung Yoon ) 한국초등과학교육학회 2012 초등과학교육 Vol.31 No.3

For decades, reflection has been recognised as a meaningful tool to bring forth teachers`` ownership as well as knowledge and action empowerment in teacher education. Yet there have been few studies on elementary teachers`` reflection on their science teaching in Korea. In this study, 71 reflective journals of 24 elementary teachers on their science teaching were analyzed. The characteristics of reflective journals were analyzed in terms of ``productive reflection``, a concept suggested by Davis (2006). Unproductive reflection is mainly descriptive without analysis, whereas productive reflection can promote teachers`` learning by integrating four aspects of teaching (learner/learning, subject matter knowledge, instruction and assessment). The result showed what elementary teachers consider and emphasize and how they integrate their ideas. Most of reflective journals included aspects of ``instruction``, ``learner/learning``, and ``subject matter knowledge``. However ``instruction`` was emphasized most frequently (69.0%) than ``subject matter knowledge`` (33.8%) and ``learner/learning`` (26.8%), ``Assessment`` was hardly included nor emphasized, More than half of the journals (56.3%) showed no integrations, which were unproductive reflection. A third of the journals (32.4%) integrated only two aspects among four. Average score of integrations was 1.6 on a scale of 4 points. The integrations were not affected by the length of reflective journals and the teaching experience. These findings suggest that productive reflection would not increase naturally with teaching experience and there needs more tactful guidance to develop elementary teachers` productive reflection on their science teaching.

언 빨래가 마르는 현상에 대한 중등학교 화학전공 교사들의 인식 조사

백성혜,김현희,양기창,김동욱,Baek, Seong-Hye,Kim, Hyeon-Hui,Yang, Gi-Chang,Kim, Dong-Uk 대한화학회 2006 대한화학회지 Vol.50 No.1

연구에서는 언 빨래가 마르는 현상을 승화라고 생각하는지, 그리고 이를 상평형 그림으로 표현할 수 있는지에 대한 중등학교 화학 교사들의 인식을 알아보았다. 53명의 교사들을 선정하여 이 연구에서 개발한 설문 및 면담을 실시하였다. 또한 사범대학 물리화학 전공 교수 2인과 분석화학 전공 교수 1인에게도 면담을 실시하여 교사 교육을 담당하는 교수의 승화에 대한 생각을 알아보았다. 연구 결과, 설문 응답한 53명의 교사 중 41명이 승화 현상이라고 답하였다. 승화라고 생각하는 교사들은 대부분 고체에서 기체로 상태변화가 일어나기 때문이라고 응답하였으며, 승화가 아니라고 생각한 교사들은 상평형 그림에서 외부압이 1기압일 때 승화가 일어날 수 없는 조건이라고 응답하였다. 17명의 교사는 언 빨래가 마르는 현상을 상평형 그림에 표현할 수 있다고 생각하였으며, 34명이 나타낼 수 없다고 응답하였다. 그러나 대부분 상평형 그림에 언 빨래가 마르는 현상을 과학적으로 설명하는 것에 대해 혼란스러워하였으며, 학생들을 가르치면서도 어려움을 겪는다고 응답하였다. study identified secondary school chemistry major teachers' perceptions of sublimation related to the drying phenomenon of frozen wash and representation of the phenomenon on phase diagram. The subjects were 53 teachers for the questionnaire developed for this study, and interviews. The two professors who majored physical chemistry and one professor who majored analytical chemistry at teacher's college were interviewed for teacher educators' perceptions of sublimation. The results showed that forty one teachers among fifty three teachers thought that the drying phenomenon was sublimation. The most teachers who thought that the phenomenon was sublimation responded as a reason that solid state changes to gas state. The teachers who thought that the phenomenon was not sublimation responded as a reason that the 1 atm of air pressure was not the condition of sublimation. Seventeen teachers thought that the drying phenomenon of frozen wash could be represented on phase diagram, but thirty four teachers thought that it could not. But most teachers confused the scientific representation of the phenomenon, and felt difficulties to teach the contents to students.

산업폐기물을 활용한 식생기반 조성에 관한 연구

유찬 ( Yu Chan ),양기석 ( Yang Ki-suk ),유시창 ( Ryu Si-chang ),조병진 ( Cho Byung-jin ),안병관 ( Ahn Byung-kwan ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-

Bech scale tests were performed to evaluate the adaptability of indutrial wastes, especially bottom ash, salg and phosphogypsum among others, for constructing the surface layer of a landfill or reclamation, which function is a vegetation base layer. In the test, columes test were used to check the extraction characteristics of wastes and small PVC soil-box that equipped the drainage device was used to model a performance of layers and to monitor the growth of plants at the composite layer of those. Tests have been continued during one and half year and It has been verified that bottom ash and phosphogypsum look like as a valuable material to safely reuse as the vegetation base layer even though some unconfined factors are remain.

교육 서비스용 기업 인터넷 인프라 개발

이종원,이제,김종호,양기창,이희석,김무상 한국경영정보학회 1996 한국경영정보학회 학술대회논문집 Vol.1996 No.-

중심 정맥 삽관법에 의한 동정맥루: 증례 및 문헌 고찰

이 근,원형섭,양기창,박철완,김상일,정호성,이종호 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

A 36-year old woman with end stage renal failure and hypertension was transferred from a university hospital to our emergency department due to a enlarging right cervical mass associated with a palpable thrill and a bruit. Over a 2 month period, she required hemodialysis for severe azotemia at a university hospital in Seoul. 3 days after a difficult attempt at a internal jugular cannulation, she developed a progressive swelling in the right lower cervical area. An arch and primary branch arteriogram revealed a arteriovenous fistula between right innominate artery and internal jugular vein with a large intervening pseudoaneurysm. She underwent vascular surgery within 1 week of injury and subsequent postoperative angiogram showed complete resolution of the fistula. This rare condition is reported with a review of the literature.

3성분 지오폰을 이용한 구조물기초의 근입깊이 조사

이철희 ( Cheol Hee Lee ),김지수 ( Ji Soo Kim ),양기창 ( Ki Chang Yang ) 대한지질공학회 2010 대한지질공학회 학술발표회논문집 Vol.2010 No.-