그린수소 사용처에 따른 전과정 온실가스 감축효과 분석: 수송부문과 타 부문의 비교

최원재 한국자동차공학회 2022 한국 자동차공학회논문집 Vol.30 No.10

This study evaluates the life cycle greenhouse gas reductions using hydrogen in the load transportation sector as well as the power generation and steel industry sectors. The life cycle greenhouse gas emissions of coal, gasoline, diesel, natural gas, and electricity have been referenced from the author’s previous studies for calculation purposes. Results showed that using hydrogen in light-duty and heavy-duty vehicles reduce 21.4 and 12.5 kg-CO2-eq./kg-H2, respectively. Using hydrogen in the steel industry can reduce 24.2 kg-CO2-eq./kg-H2, which is larger than the load transportation values. Using hydrogen in fuel cell power generation can reduce 10.0 kg-CO2 -eq./kg-H2, which is smaller than the load transportation values, when the generated power replaces the national average electricity. Finally, the life cycle greenhouse gas reductions were compared with the life cycle greenhouse gas emissions of various hydrogen production methods.

대학생을 위한 융복합 생식건강증진 프로그램이 성 지식, 성 태도 및 생식건강행위에 미치는 영향

최원재,박준혁,이승원,임종은,정현철,임영숙,한숙정 한국융합학회 2018 한국융합학회논문지 Vol.9 No.3

본 연구의 목적은 생식건강증진 프로그램이 대학생의 성 지식, 성 태도, 생식건강증진행위에 미치는 영향을 융복합적으로 알아보기 위해 실시하였다. 108명의 대학생이(평균연령 20.84세) 생식건강증진 교육 프로그램에 참여하였다. 생식건강증진 프로그램은 2016년 11월 9일부터 12월 7일까지 4주간 주 2회, 110분 동안 진행되었고 설문지를 통해 성 지식, 성 태도, 생식건강증진행위를 조사하였다. 결과적으로, 성 태도는 생식건강증진 프로그램을 진행한 뒤 유의하게 더 향상되었고 성 지식과 생식건강증진행위 사이에 유의한 상관관계가 있었으나(p<0.05) 성 지식과 생식건강증진행위는 유의한 변화가 없었다. 본 연구를 통해 생식건강증진 프로그램은 대학생의 성 태도를 유의하게 향상시키고 성 지식과 생식건강증진행위 사이에 상관관계가 있음을 알 수 있었다. 본 연구는 추후 대학생들의 생식건강증진을 위한 교육 프로그램 개발에 활용하고자 한다. The aim of this study is to determine whether the reproductive health promotion program (RHPP) affect the sexual knowledge, sexual attitude, and reproductive health promoting behavior in University students. The students of 108 (mean 20.84 years) were participated in the RHPP, and this program was conducted to 110 min, twice a week for 4 weeks from November 9, 2016 to December 7. We investigated sexual knowledge, attitude, and reproductive health promoting behavior by questionnaire. As the results, the sexual attitude was better than baseline, and significant correlation between the sexual knowledge and the reproductive health promoting behavior (p<0.05). However, no significant changes in outcome measure were observed in the sexual knowledge and reproductive health promoting behavior (p>0.05). We found that the RHPP improves the sexual attitude and correlate between the sexual knowledge and reproductive health promoting behavior. This study will be utilized to develop the education program for the reproductive health promotion of University students.

우리나라 국가연구개발 성과평가제도 변동의 맥락과 영향에 관한 연구

최원재,김유빈,강근복 한국기술혁신학회 2016 한국기술혁신학회 학술대회 발표논문집 Vol.2016 No.10

한자의 가상세계성과 한자 교육 패러다임 시프트

최원재 한국한문교육학회 2023 한문교육논집 Vol.60 No.-

This thesis is to find a way to increase the learner's cognitive conversion capacity suitable for the educational environment in which the metaverse is implemented through Chinese character education. What is important in realizing a virtual world is not only learning the technology to build a virtual environment, but also the cognitive transformation capability that makes this possible. In order to develop this competency, it is suggested to develop a curriculum that uses the principle of disciplining Chinese characters. In particular, the metaphorical nature seen in the principle of hieroglyphic discipleship in Chinese characters develops understanding and cognition of the virtual world, and above all, it is a content that can be grasped in the hand that transforms the subject's awareness of existence, and is the source of images, which are the central driving force forming the current virtual world in a philosophical way. is the ability to express Using these characteristics of Chinese characters, Chinese character education can be transformed into a cognitive conversion competency education method that can identify and implement the nature of the virtual world.

신제도주의 이론을 적용한 출연연 관리제도 변화과정 연구

최원재,강근복 한국기술혁신학회 2022 기술혁신학회지 Vol.25 No.1

This study analyzed the process of changing the management system of GRIs in the field of S&T in Korea by applying the new institutional theory. As a result of the analysis, it was confirmed that it’s management system has been continuously changed due to environmental changes such as regime change, paradigm ideas, program ideas, and actor interactions. In the case of environmental factors, the pressure on institutional change was increased only by regime change itself, regardless of conservatism and progressivism. In addition, the presentation of paradigm ideas as a solution to each government's problem definition became a trigger for changes in governance, institutional evaluation system, and PBS system through program ideas presentation. In addition, it was confirmed that the presentation and adoption of paradigm ideas or program ideas are an important factor in the adoption of ideas because they are not done by any one actor, but as a result of competition and cooperation between actors. As a result, as the system changes surrounding GRIs in the field of S&T continued and became complex. 본 연구는 신제도주의 이론을 적용하여 우리나라 출연연 관리제도 변화과정을 통시적, 맥락적으로 분석하였다. 그 이유는 그동안 출연연의 낮은 연구성과 및 역할 중복 문제의 원인 중에 가장 큰 것이 정부의 출연연 관리제도의 지속 또는 변화 때문이라고 보기 때문이다. 분석틀의 구성요소로는 선행연구를 검토하여 환경과 아이디어, 행위자 요인을 도출하였다. 아이디어는 기존 Cambell과 Mehta의 아이디어 구분을 재조정하여 패러다임과 프로그램 아이디어로 구 분하였고, 분석방법은 과정추적을 위하여 사례연구 방법을 적용하였다. 분석결과 정권교체라는 환경변화와 문제를 정의하고 해결하기 위한 패러다임 아이디어와 프로그램 아이디어, 행위 자의 상호작용 등으로 인해 출연연 관리제도가 지속적으로 변화되어 왔음을 확인하였다. 각 정부별 문제정의와 해결 방안으로서의 패러다임 아이디어는 프로그램아이디어를 통해 출연연 거버넌스, 기관평가제도, PBS 제도 등의 변화를 가져오는 촉발기제가 되었다. 결과적으로 출연연을 둘러싼 거버넌스, 기관평가. PBS 제도가 지속 또는 변화, 복잡화 되면서 현재의 출연연 문제가 고착화되는 원인이 되었다고 볼 수 있다.

족저굴곡 운동과 스텝퍼가 정상인의 균형 능력에 미치는 영향

최원재,조은미,천진우,손경현,Choi, Won-Jye,Jo, Eun-Mi,Chun, Jin-Woo,Son, Kyung-Hyun 대한고유수용성신경근촉진법학회 2009 PNF and Movement Vol.7 No.3

The purpose of this study was to investigate the effects of plantar flexion exercise and stepper on the balance ability in normal peoples. Twenty subjects participated in this experiment were carried out the program on 6 weeks plantar flexion exercise and stepper. They were divided into two groups; plantar flexion group(plantar flexion exercise group, n=10) and stepper group(using stepper group, n=10). The effects of plantar flexion exercise and using stepper were evaluated by measurements of normal standing(NSEO, NSEC), and semitandom standing and dynamic type 1 and dynamic type 2, respectively. For each case, the experimental data were obtained about static balance in 3 items: mean X speed, mean Y speed and velocity moment, that of dynamic balance in 2 items: mean X speed, mean Y speed. The results of this study were as follows; 1. In plantar flexion exercise group, the statistically significants were shown on X, Y speed and velocity moment in the case of NSEO, NSEC, semitandom standing, and on X, Y speed in the case of dynamic type 1, dynamic type 2. 2. In using stepper group, the statistically significants were shown on X, Y speed and velocity moment in the case of NSEO, NSEC, semitandom and on only X, Y speed in the case of dynimic type 1, dynaimic type 2. 3. There was a statistically significant similar on all about case. however, the statistically difference were not shown with intergroup. The above results revealed that plantar flexion exercise and using stepper was effective for improving the balance ability.

슬링에서 교각 운동이 정상인의 동적 균형 능력에 미치는 영향

최원재,강찬오,손경현,Choi, Won-Jye,Kang, Chan-O,Son, Kyung-Hyun 대한고유수용성신경근촉진법학회 2009 PNF and Movement Vol.7 No.3

The purpose of this study was to investigate the effects of the bridge exercise with sling on dynamic balance ability in normal peoples. In general, the sling using exercise was related in the dynamic balance and the function. Fifteen subjects participated in this experiment were carried out the program for 4 weeks to Lumber stability exercise with stretching exercise. The effects of sling using exercise were evaluated by measurements of normal standing of dynamic balance on GOOD BALANCE system, respectively. For each case, the experimental data were obtained in 2 items: mean X speed, mean Y speed. The results of this study were as follow: There were statistically significant differences of all items between the before and the after exercise. The above results revealed that sling using exercise was effective for improving the dynamic balance ability.

양성 백악모세포종에 관한 연구

최원재,최의환 朝鮮大學校 口腔生物學硏究所 1995 Oral Biology Research (Oral Biol Res) Vol.19 No.1

A Method to Simulate Frictional Heating at Defects in Ultrasonic Infrared Thermography

최원재,최만용,박정학 한국비파괴검사학회 2015 한국비파괴검사학회지 Vol.35 No.6

Ultrasonic infrared thermography is an active thermography methods. In this method, mechanical energy is introduced to a structure, it is converted into heat energy at the defects, and an infrared camera detects the heat for inspection. The heat generation mechanisms are dependent on many factors such as structure characteristics, defect type, excitation method and contact condition, which make it difficult to predict heat distribution in ultrasonic infrared thermography. In this paper, a method to simulate frictional heating, known to be one of the main heat generation mechanisms at the closed defects in metal structures, is proposed for ultrasonic infrared thermography. This method uses linear vibration analysis results without considering the contact boundary condition at the defect so that it is intuitive and simple to implement. Its advantages and disadvantages are also discussed. The simulation results show good agreement with the modal analysis and experiment result.

Overexpressed Cyclophilin A in Cancer Cells Renders Resistance to Hypoxia and Cisplatin - Induced Cell Death

최원재,Choe, Won-Jae 한국미생물학회 2007 微生物과 産業 Vol.33 No.2