광결정을 이용한 광소자 및 광센서

방지원,Bang, Ji-Won 한국전기전자재료학회 2016 전기전자재료 Vol.29 No.4

콜로이드 양자점의 합성 및 이를 이용한 디스플레이 응용

방지원,Bang, Ji-Won 한국전기전자재료학회 2019 전기전자재료 Vol.32 No.2

금속이온에 의한 CdSe 나노결정의 형광 소광 및 회복 특성

방지원,김봄이,구은회,김성지,Bang, Jiwon,Kim, Bomi,Koo, Eunhae,Kim, Sungjee 대한화학회 2016 대한화학회지 Vol.60 No.2

CdSe 기반 나노결정의 구리이온에 의한 형광 소광 특성 및 아연이온에 의한 형광 회복 특성을 관찰하였다. 구리이온이 첨가되었을 경우, CdSe 양자점에서는 매우 빠르고 급격한 형광 소광 특성을 보이는 반면에 CdSe 나노라드의 경우에서는 형광이 서서히 소광되는 특성을 보인다. 구리이온으로 형광을 소광시킨 CdSe/CdS(핵/껍질) 양자점에 아연이온이 첨가되면 소광된 양자점의 형광이 회복된다. 용액 내 1 μM의 아연농도에서 양자점의 형광이 50% 증가됨을 확인하였으며, 아연 농도가 증가함에 따라 양자점의 형광세기가 증가되며 이는 Langmuir binding isotherm 모델로 해석할 수 있다. 이러한 연구를 바탕으로 CdSe 기반의 나노결정을 이용한 형광 화학 센서를 구현할 수 있을 것으로 기대한다. Copper ion induced photoluminescence (PL) quenching dynamics and recovery of the PL by zinc ions were investigated for CdSe based nanocrystals. When copper ions were added, CdSe quantum dots showed fast and dramatically PL quenching whereas PL of CdSe nanorod gradually decreased. In the presence of zinc ions, the PL of CdSe/CdS (core/shell) nanocrystals that have quenched by copper ions was efficiently recovered. It showed that the PL intensity of nanocrystals increased by 50% in a solution containing 1 μM zinc ions. The PL intensity was increasing with increasing zinc ions, and could be described by Langmuir binding isotherm model. We showcase that the CdSe based nanocrystals can be used as fluorescence turn-on sensor.

역사교사양성과 선발의 간극

方智嫄(Bang, Ji-Won) 역사교육연구회 2013 역사교육 Vol.127 No.-

‘Teaching competence of history teacher’ is extremely complex matter, being developed over a long period of time. History teacher-training program should lead students to have power of self-sustained growth in professionalism of history teachers. In this position, professionalism of history teachers is defined as ‘future growth probability’ with qualitative characteristics. The national policy of teacher training and selection has claimed to stand for educational reform through the securing competent teachers. To attain its object, current teacher-selection system has selected new history teachers by competitive examination. But the teacher-selection system has not been successful in appraising of examinee’s potential specialty. Multiple choice type question test(stage1), brief essays test(stage2), and perfunctory performance test(stage3) can evaluate only a small part of professionalism of history teachers. Worse still, there have been increasing bad effects caused by quantitative standard based selection system. It’s almost impossible to assess the level of teaching competence of a preservice teacher by quantitative-based tests. Making perfectly clear what is the conflict between teacher-training program and teacher-selection system, we can expect improvement in teacher-selection system and stable management teacher-training program.

10학년 〈역사〉 교육과정의 ‘비교’ 내용 구성 방향

방지원(Bang Ji-won) 효원사학회 2009 역사와 세계 Vol.- No.35

There has been a conventional notion that comparative history is a field within history in academic institution, and that comparison is a useful method for discovering the historical likeness or differences and explaining the cause of them. In 2007 reformed curriculum, History, newly established subject claimed to stand for ‘connection between world history and korean history' as the important principals in content organization. History has two basic direction : self-reflection in teaching and learning history and self recognition in world History-based context. Especially in ten grade's syllabus, comparison is the main method for connection world history and korean history. So, in history education particularly in textbook development, comparison became a pressing topic of discussion. A history teacher frequently applies comparative methods or comparative approaches to classes, comparison will be more powerful influence on the process of teaching history. The aim of this paper is to establish the basic rules or directions for ‘comparison' in ten grade's history textbook development. The real value of educational comparison lies in learner-centered historical thinking process, not in acquiring new knowledges or informations. I hope that we can have advance in studies about com parison in academic and educational institution.

역사교육에서 생태환경적 접근의 의미

방지원(Jiwon Bang) 한국역사교육학회 2022 역사교육연구 Vol.- No.44

인류의 장구한 경험을 여러 각도에서 들여다보고 탐구하는 역사학습을 통해 학생들은 자신들이 가진 다양한 ‘렌즈’에 따라, 인류의 과거에 관한 이야기를 만들 수 있다. 그리고 그런 이야기를 바탕으로 개인과 사회적 삶과 미래에 대한 상상력이 풍부해질 수 있다. OECD와 UN이 제시한 새로운 교육론을 통해서도 이와 같은 역사교육의 중요성을 확인할 수 있다. 두 국제 문서가 강조한 학생 행위주체성, 변혁 역량 등의 개념은 학생의 자기 형성 과정으로서의 역사교육에 관한 기왕의 논의를 진전시키는 데 유용하다. 또한 ‘손상된 지구를 위한 교육과정’과 같은 아이디어에 담긴 교육 패러다임의 생태적 전환은 역사 교육과정 및 교과서의 오랜 서사적 전통을 반성하도록 한다. 역사교육에서 교육 패러다임의 생태환경적 전환은 ‘생태적 시민으로서의 학생의 자기 형성’에 관한 문제이다. 인간이 세계와 어떤 관계를 맺고 있는가에 대한 역사교육의 인식론적이고 존재론적 전제를 성찰하고 동시에 역사와 인간을 생태적 관계성 속에서 사유하도록 변화시키는데 필요한 교육적 질문을 만들어내자는 절박한 제안이기도 하다. 그러기 위해서는 학생들이 스스로 아득한 과거로부터 지금에 이르기까지, 생태적 존재로서의 인간이 환경 속에서 어떻게 살아왔는가를 역동적으로 살피도록 돕는 역사학습주제를 찾고 개발해야 한다. 이러한 역사학습은 학생들이 생태적 감수성을 깨우고, 오늘날 환경위기를 극복하는데 나서는 주체로서의 의지를 진작시킬 수 있다. 역사학이 담당하고 회복해야 할 공적 역할을 생태환경사와 역사교육의 적극적 제휴와 그것을 통한 교육적 실천으로부터 찾을 수 있을 것이다. In the history class, students explore the long experience of mankind from various perspectives. In the process, students will be empowered to look at the past and present, and to imagine possible futures for individuals and society. The new education theory proposed by the OECD and the UN supports the importance of such history education. Two international documents proclaimed the eco-environmental turn of the educational paradigm based on the student's agency and transformative competency. And this can serve as an opportunity to advance the discussion of history education that helps students in the process of self-formation. The long narrative tradition of history curricula and textbooks should be reflected in the light of ideas on the curriculum proposals of the UN report. In the end, the eco-environmental turn of the educational paradigm in history education is a matter of ‘self-formation of students as ecological citizens’ It is also an urgent proposal to reflect on the epistemological and ontological premise of history education on how human beings relate to the world, and at the same time create educational questions necessary to change history and humans to think in ecological relationship. To this end, it is necessary to find and develop a history learning topic that helps students to dynamically examine how humans as ecological beings have lived in the environment from the distant past to the present. Such history learning can awaken students' ecological sensibility and boost their will as subjects to overcome today's environmental crisis. The role that history studies should play and restore for the public can be found in the active alliance between eco-environmental history and history education and educational practice through it.

Apache Kafka에서 효율적인 과부하 측정을 위한 모니터링 도구

방지원 ( Jiwon Bang ),손시운 ( Siwoon Son ),문양세 ( Yang-sae Moon ),최미정 ( Mi-jung Choi ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

실시간으로 빠르게 발생하는 대용량 데이터를 다루기 위해 Apache Storm, Apache Spark 등 실시간 데이터 스트림 처리 기술에 대한 연구가 활발하다. 대부분의 실시간 처리 기술들은 단독으로 사용하기에 어려움이 있으며, 데이터 스트림의 입출력을 위해 메시징 시스템과 함께 사용하는 것이 일반적이다. Apache Kafka는 대표적인 분산 메시징 시스템으로써, 실시간으로 발생하는 대용량의 로그 데이터를 전달하는데 특화된 시스템이다. 현재 Kafka를 위한 다양한 성능 모니터링 도구들이 존 재한다. 이러한 모니터링 도구들은 Kafka에서 처리되는 데이터의 양 이외에도 유입 데이터의 크기, 수집 속도, 처리 속도 등 다양한 데이터들을 관찰할 수 있다. 본 논문은 Kafka에서 제공하는 도구와 오픈 소스로 제공되는 여러 개의 도구들을 비교하여, 향후 Kafka의 로드 쉐딩에 대한 연구에 적용할 수 있는 최적의 모니터링 도구를 선별하고자 한다.

중·고등학생들의 현대사 인식과 역사교육

方智嫄(Bang, Ji-Won) 역사교육연구회 2014 역사교육 Vol.130 No.-

As the starting point of history educational Researches focusing on learners, the question of the social contexts of student’s historical knowledge is very important. In this survey, I analyzed statistical data about middle and high school students’ understanding and perceptions of the Contemporary History of Korea and history education. The data derived from detailed examinations of learner’s understanding and perceptions of the History and history education, that were carried out by the Institute of History Education in 2010 and 2013. Generally, middle and high school students are interested in learning history, especially, nearly 30 percent of the them think that student should know more Contemporary History of Korea. And they think that learning history will do them good to understand matters now, to learn lessen and wisdom for a better future. At ‘depths interview’, students judge importance of historical events by ‘present tasks and lesson of history’. They feel serious danger reality of national division of North and South, and tend to look for historical lesson for ‘peace settlement’ from the Korean War and the Inter-Korean summit. They are very proud of the ‘development of democracy’ and value highly the ‘Gwangju Democratization Movement’ and the pro-democratic resistance movement in 1987. They hope for harmonious development of democratization and industrialization in the future, place special emphasis upon ‘distribution justice’.

역사교사 양성교육에서 ‘역사교육사’의 필요성과 내용 구성 방향

方智嫄(Bang, Ji-Won) 역사교육연구회 2012 역사교육 Vol.124 No.-

This study focused on the necessity and a development direction of syllabus for history of education in history teacher-training program. I discuss the necessity and educational value of teaching history of ‘history education’, based on data and materials from student’s ‘learning diary’ which submitted as homework for ‘introduction to history education’. And this study is to examine the relation between the confucian educational policies and history education in the late chosun. By so doing, try to reconstruct the distinct feature of History Education in the Late Chosun in the context of Socio-cultural Environment, and hidden political agenda. The history education of chosun was provided as a part of Confucianism education. Confucian ideas were mainly about social order, harmony and the worship of family ancestors. Since 17century, th ruling group promoted the dissemination of Confucian morals aggressively. So-Hak(小學), Dong-Mong-Sun-Seup(童蒙先習), Tong-Gam-Jiel-Yao(統監切要) were held in great esteem for basic textbook on Confucian ideas and history of Sinocentrism. Especially Dong-Mong-Sun-Seup(童蒙先習), as a textbook on Korean history tells that korea is the small Cina(小中華) that has civilized by Confucian culture as good as china.

〈국사〉 서술형 평가 답안에 나타난 고등학생의 역사 이해 양상 : 조선 후기 신분 상승에 대한 서술형 답안 분석

方智嫄(Bang Ji-Won) 歷史敎育硏究會 2007 역사교육 Vol.102 No.-

In this study, I tried to investigate the distinctive aspects of the high school student’s historical understanding, focussed on the power, putting historical knowledge to practical use, to write history essay. For this, 342 highschool students were asked to wrote out their own historical essay as a important part of a term examination, about the upheaval of status system in the latter term of the Joseon Dynasty. The question reads as follows. “At the end of 18th century, a male servant Childuk had lived in chung cheong-do. Yeuckgap was a ordinary peasant lived in jeon ra-do, contemporary of Childuk. Yeuckgap and Childuk were a servant and a peasant in their early days, but when old aged, they acted like a noble blood, Yang-Ban. What ever had happened to them? Write your idea about this.” 286 students handed in meaningful answer paper, 26 students guessed, but far off the mark and 30 failed completely. Then I analyzed and essays in detail, under some criterion ; student’s knowledge, clear grip of the kernel of the question, power of thinking collectively in the historical context. This research has found that not a few students have a difficulty in chronological thinking. They mixed up the times of ImJin Waeran with the 18th century in making out essay. A quarter of all student, could write essay in recognition of the examiner’s intention. Then, about one third of them, that is to say, only 10% of all examinee, could reached the satisfactory writing, Which contained accurate knowledge, historical context or proper situation to 18th century, flowing and elegant style.