미래문제해결프로그램을 통한 과학영재들의 창의·인성 탐색

최규리(Choi, Kyoulee),김세현(Kim, Sehyeon),최경희(Choi, Kyounghee) 한국영재교육학회 2013 영재와 영재교육 Vol.12 No.1

본 연구에서는 과학영재들을 위한 창의•인성 교육 방법의 하나로 미래문제해결프로그램을 적용하여 창의적 문제해결과정에서 나타나는 특징을 살펴보고, 영재들의 자기 성찰과 과학에 대한 태도 및 창의적 인성 검사를 활용하여 미래문제해결프로그램이 창의•인성에 미치는 영향을 살펴보고자 하였다. 프로그램은 ‘기후변화’ 토픽과 관련하여 지역공동영재학급 중학교 1학년 20명을 대상으로 6회에 걸쳐 총 11차시로 진행되었다. 연구결과 학생들의 창의적 문제해결력에는 순차적으로 연관된 사고과정에 의한 문제발견이 다양한 창의적 사고 과정과 의사소통을 가능하게 하여 효과적임을 알 수 있었다. 또한 기후변화와 관련된 미래문제해결프로그램을 통해 영재들은 환경문제의 심각성과 중요성을 깨닫고 대책마련이 시급하다고 인식함으로써 과학에 대한 태도가 대체로 유의미하게 변화되었으며, 모둠활동을 통해 협동과 의사소통 등을 배움으로써 창의•인성 및 인성적 요소뿐 아니라 창의적 성향에도 효과가 있음을 알 수 있었다. 이를 바탕으로 창의•인성 교육방법으로서 미래문제해결프로그램을 효과적으로 사용하기 위해서는 문제이해단계에서 충분한 논의와 사고과정이 일어날 수 있도록 해야 하고, 토론 시 고려해야할 창의•인성 교육 요소들에 대한 지침을 제공하며, 글로벌 시민의식이나 생명존중 등 다양하고 포괄적인 관점에서 토의가 일어날 수 있도록 구성할 필요가 있음을 제언하였다. In this study, we investigated the qualities which can be found in the process of problem solving by applying the Future Problem Solving Program (FPSP) to science gifted students, and what they felt and learned from the viewpoint of creativity and character. We applied the FPSP about climate change (total 11 times run over 6 sessions) to 20 first grade students of gifted class in the local community of middle school. The results of this study confirmed that problem finding through a thinking process related in consecutive order leads to the proposing of effective solutions through the various divergent thinking processes and communications. The FPSP had positive influences in the attitude to science, and creative personality as well as character education. The science gifted students realized the importance and seriousness of environmental problem, thought the measures are urgently needed, and learned teamwork and communication skills. For creativity and character education method, this study suggested that FPSP consists of enough discussion and thinking process on problem finding, provides the guideline about creativity and character education, and presents differing perspectives about global citizenship, life respect, and so on.

졸-겔법을 이용한 TiO₂ 박막의 광촉매 특성

최규만(Choi, Kyu-Man),김여환(Kim, Yeo-Hwan),임해진(Lim, Hae-Jin) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.2

TiO₂ 박막을 저온 열처리 졸-겔 법으로 합성하였다. 박막의 기판은 면적이 100㎟인 붕규산염 유리를 사용 하여 시료를 300˚C부터 11000C까지 열처리하였고, 이때 제조된 박막의 두께는 약 1.5μm정도였다. 300˚C에서 2시 간 동안 열처리한 TiO₂ 박막은 아나타제 상을 나타내었고 열처리 온도가 증가함에 따라 비정질 상태에서 아나타제 상과 루타일 상이 공존하면서 각 상의 분율이 변화하였다. SEM 분석에 의하면 박막의 입자 크기는 0.1∼0.54μm이었 으며 Uv-visible 반사특성에 있어서 390nm부근에서 광흡수가 되는 것을 알 수 있었다. 따라서 낮은 열처리 온도에서 생성된 TiO₂ 박막은 주로 아나타제 상을 가지며 광촉매 특성을 2.4배 증가시키는 것으로 나타났다. Thin film of TiO₂ was obtained by the sol-gel dip method on the brosilicate glass substrate. It was found that the film was about 1.5μm thick as obtained by 4 successive coatings and annealed at varied temperatures ranged from 300˚C to 1100˚C for 2 hrs. The substrate used was having the surface area of 100㎟. Increasing the annealing temperature caused to change in mineralogical phase of titanium oxide i.e.., amorphous, crystalline antase to rutile phases. The particle size of the titanium oxide film were ranged from 0.1~0.54μm estimated by the SEM analysis. The material showed an absorbance maximum at the wavelength 390nm obtained by UV-visible spectrophotometer. These results therefore, indicated that the TiO₂ film obtained relatively at low annealing temperature consisted predominantly with anatase phase; possessed higher photocatalytic behavior i.e., 2.4 times higher than that of only UV lamp irradiation.

자율주행 DRT(수요응답형 교통) UX 디자인 특성 연구: 고령자를 중심으로

최규한(Kyu-Han Choi) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.12

본 연구는 2027년 적용 가능한 레벨5의 자율주행차량을 기반으로 자율주행 DRT UX 디자인 특성을 제안하는데 목적이 있다. 연구범위로는 고령자와 차량 내외의 인터랙션을 중심으로 한 시스템으로 하였으며, 레벨 5의 자율주행차량을 연구대상으로 하였다. 적용 대상으로는 2021년을 기준으로 60대부터 90대로 설정하였다. 본 연구는 고령자와의 직접적인 소통을 통한 실제적인 인사이트를 도출한 자율주행 DRT UX 디자인 특성 연구라는데 기존 연구와의 차별성이 있다. 연구 방법으로는 문헌연구를 통해 자율주행차량과 DRT를 이론적으로 고찰하였으며, 이를 바탕으로 자율주행차량과 DRT의 사례를 분석하였다. 사례연구로는 고령자 인터뷰, 자율주행차량 시승, 영상제작, 설문조사, 고령자 자율주행차량 VR 시승을 통한 일반화로 진행하였다. 포커스 그룹 인터뷰(FGI)를 통해 자율주행 DRT UX 디자인 특성 10가지를 도출하였으며, 도출된 특성은 예약, 승차, 입력, 주행, 응급, 하차 등으로 구분되었다. 본 연구를 통해 고령자의 이동성 향상에 이바지하고 자율주행 DRT의 실용화를 한층 앞당기는 계기가 되기를 바란다. The purpose of this study is to propose the features of autonomous DRT UX design based on level 5 autonomous vehicle applicable in 2027. As the scope of the study, the system focused on the interaction between the elderly and the in/outside of the vehicle, and the level 5 autonomous vehicle was the subject of the study. As of 2021, the targets for application were set from 60s to 90s. This study is different from previous studies in that it is a study on the features of autonomous DRT UX design that derives practical insights through direct communication with the elderly. As a research method, autonomous vehicle and DRT were theoretically considered through literature research, and based on this, cases of autonomous vehicle and DRT were analyzed. As a case study, generalization was conducted through interviews with the elderly, test-drive of autonomous vehicle, video production, survey, and VR test-drive of autonomous vehicle for the elderly. Ten features of autonomous DRT UX design were derived through focus group interview(FGI), and the derived features were classified into reservation, get on, input, driving, emergency, and get off. Through this study, I hope that it will contribute to improving mobility of the elderly and further accelerate the practical use of autonomous DRT.

치위생과 학생의 2×2 성취목표지향성이 자기조절학습에 미치는 영향

최규일 ( Gyu Yil Choi ),정기옥 ( Gi Ok Jung ) 한국치위생과학회 2012 치위생과학회지 Vol.12 No.4

This research will target the Dental Hygienics students to identify the level and type of the 2×2 achievement target orientation, and will study how this achievement target orientation is related to the Self-Regulated Learning, as well as the effect on the each sub elements of the Self-Regulated Learning (SRL). Among the 2×2 achievement target orientation of all the female university students, the skillful approach was found to be highest. In case of the adjustment of the motivation following grade, intrinsic value of the 1st grader was higher than the intrinsic value of the 2nd and 3rd graders. As for the behavior adjustment, the 3rd grader`s time and studying adjustment were found to be higher. Mean while, pursuit of the cooperation was found to be high compared to the time and studying adjustment of the1st and 2nd graders. Second, intrinsic value, overt goal orientation, and studying environment adjustment among the SRL`s subelements, manifested significant correlation with all the sub elements of the 2×2 achievement target orientation. As for the elements that affected cognition adjustment, grade and skillful approach were found to exert significant effect on the performance adjustment. As for the element that affects behavior adjustment, grade and skillful approach exerted significant effect on the sub elements of the behavior adjustment. Analysis on the effect of the achievement target orientation and SRL implies that the direction of the students` learning goal can be modified and that they can learn effectively by using the SRL appropriately. When the two elements are factored in carefully, the key findings could serve as a base data that can motivate the students, inducing effective learning process.

신교육목표분류학의 틀에서 본 구강보건교육학 목표 분석

최규일 ( Gyu Yil Choi ),최병욱 ( Byung Ok Choi ) 한국치위생과학회 2012 치위생과학회지 Vol.12 No.3

This study examined in what category that the knowledge dimension and the cognitive processes dimension are described based on ``A revision o Bloom``s taxonomy of educational objectives`` in oral health education textbooks. Oral health education and practice from Educational Objectives of Dental Hygiene Department(Korea dental hygienist Prof Council, 2009) were selected to analyze a textbook, the body contents was analyzed in the knowledge dimension, and the activity was analyzed in cognitive processes dimension. Three experts were selected as a corder for reliable analysis. As a result of this study, the knowledge dimension in oral health education textbook was focused on the categories of factual knowledge and conceptual knowledge in textbook analysis based on ``A revision of Bloom``s taxonomy of educational objectives``, and the category dimension of ``understand`` showed to be the most for the cognitive processes dimension. Moreover, there was no ``meta cognitive knowledge`` that conforms to a higher-order thinking and the category dimensions of ``analyze``, ``evaluate``, and ``create`` took very low proportion or did not exist. Conclusion, Oral health education textbooks were analyzed to fragmentary and Memorizing the level knowledge. Thus we have to develop oral health education textbooks reflected a variety of cognitive and knowledge dimension.

규격제품 미사용이 부른 인재

최규한,송우석,이철한 한국화재조사학회 2015 한국화재조사학회 학술대회 Vol.2015 No.04

미생물 연료전지의 전극 재료와 구조에 따른 전기적 특성

최규만,Choi, Kyu-man 한국정보전자통신기술학회 2014 한국정보전자통신기술학회논문지 Vol.7 No.1

폐수 속에 들어있는 미생물을 이용해서 전기를 얻을 수 있도록 고안된 것이 미생물 연료전지이다. 본 논문에서는 미생물 연료전지의 전극 재료와 구조에 따른 전기적 특성을 조사했다. 구리판을 캐소드 전극으로 사용한 연료전지는 구리판의 산화 반응에 따른 전압역전현상이 관찰되어 백금판을 전극으로 사용한 연료전지보다 낮은 출력 전압을 나타내었다. 구리판을 전극으로 사용한 경우 전극판의 간격이 작을수록 높은 전압특성을 나타내었고 면적이 넓을수록 최고출력전압이 나타나는 시간이 지연되는 특성을 보였다. MFC(microbial fuel cell) is the device to produce the electricity by using the microbes which are living in the waste water. In this paper, the electric characteristics of the MFC were investigated according to each different structure and electrode materials. The voltage being reversed phenomenon was observed in the MFC which uses the cupper plate as the cathode material. This result comes from the oxidation reaction of the cupper plate electrode in this MFC. And this MFC has lower output voltage than one that has a platinum plate electrode. The smaller gap distance of the cupper plate electrode of the MFC showed the higher output voltage. The larger electrode area of the cupper plate electrode showed that the reaching time of the output voltage to the maximum value was delayed.

하소조건이 YAG:Ce형광체 특성에 미치는 영향

최규만(Kyu-Man Choi),김재문(Jae-Moon Kim),이준모(Joon-Mo Lee) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6

저잡음 특성을 가진 혈당감지를 위한 초퍼 완전차분차동증폭기(FDDA) 기반의 Potentiostat 회로

최규리(Gyuri Choi),남경식(Kyeongsik Nam),김형섭(Hyungseup Kim),권용수(Yongsu Kwon),고형호(Hyoungho Ko) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6

A Case of Riata® Dual Coil Defibrillator Lead Failure in a Patient with Ventricular Fibrillation

최규,김정희,김효진,이세옥,장은영,김준수 대한심장학회 2013 Korean Circulation Journal Vol.43 No.5

A 50-year-old man, who underwent a procedure for an implantable cardioverter defibrillator (ICD), visited the outpatient department of our clinic after suffering multiple ICD shocks. The ICD interrogation revealed recurrent shock due to a high frequency of noise that is sensed by the device as ventricular fibrillation. Chest radiography revealed a significant split in the insulation of the lead allowing the inner wire to protrude. We considered the removal of the failed lead, but the removal of ICD lead is potentially a high risk procedure, so we cut and capped a proximal part of the failed lead and inserted a new lead. This is the first report of a St. Jude Riata® dual coil defibrillator lead failure with clinical and radiologic evidence of a defect in lead insulation in Korea.