• 한국자기학회:학술대회 개요집
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• 한국자기학회 2015년도 임시총회 및 하계학술연구발표회
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• pp.30-31
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• 2015

• 실천공학교육논문지
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• 제15권3호
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• pp.625-633
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• 2023

본 논문에서는 현재까지 발표된 노벨 엔지니어링 수업 실천 사례들이 가지는 이론적 배경과 교육 방법적 기반을 문헌 연구를 통해서 고찰해보고자 한다. 이를 위해서 2016년부터 2023년까지 출간된 노벨 엔지니어링 관련 학술 발표 논문과 학위 논문 30여편을 선정하여 조사하였다. 조사 결과, 이론적 배경으로는 시모어 패퍼트의 구성주의와 비고츠키의 사회문화적 구성주의, 교육 방법적 기반으로는 창의적 문제 해결 학습, 문제 중심 학습, 교과 간 융합 수업, 액션 러닝, 독서 교육 및 글쓰기 교육과의 연계, 통합 교육과정 운영 가능성으로 정리할 수 있었다. 이 연구가 노벨 엔지니어링 융합 수업 모형으로서 이론적 가치를 다지고 미래 교육을 준비하는 교사들에게 하나의 대안이 될 수 있기를 기대한다.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2015년도 임시총회 및 하계학술연구발표회
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• pp.32-33
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• 2015

• Structural Engineering and Mechanics
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• 제81권5호
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• pp.551-563
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• 2022

Bolted connector could be an alternative to replace the conventional welded headed stud in steel-ultra high performance concrete (UHPC) lightweight composite structures. In this paper, a novel demountable bolted shear connector, consisting of a high-strength bolt (HSB) and a specially-designed nut which is pre-embedded in a thin UHPC slab, is proposed, which may result in the quick installation and disassembly, due to the mountable, demountable and reusable features. In order to study the shear behavior of the new type of bolted shear connector, static push-out tests were conducted on five groups of the novel demountable bolted shear connector specimens and one group of conventional welded headed stud specimen for comparison. The effect of the bolt shank diameter and aspect ratio of bolt on failure mode, shear stiffness, peak slip at the steel-UHPC interface, shear strength and ductility of novel bolted connectors is investigated. Additionally, design formula for the shear strength is proposed to check the suitability for assessment of the novel demountable bolted shear connectors.

• 정보교육학회논문지
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• 제20권2호
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• pp.171-178
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• 2016

본 논문에서는 미국 매사추세츠 주의 Tufts University 부설 CEEO(Center for Engineering Education and Outreach)에서 수행되고 있는 로봇활용교육 워크숍, Novel Engineering, STOMP 사례를 소개하고자 한다. CEEO는 미국의 많은 대학에서 롤모델로 삼을 만큼 로봇활용교육에서 가장 선도적인 센터이다. 이 센터에서는 초 중 고등학교 학생들과 교사들을 위한 로봇활용교육 워크숍이 매년 여름방학 때 진행되고 있다. 또한 공과대학 1학년 학생들은 Simple Robotics과목을 필수로 이수해야한다. 우리에게 생소한 Novel Engineering은 독서교육과 공학을 융합한 공학교육방법이다. STOMP(Students and Teachers Outreach Mentorship Program)는 초 중 고등학교 교사들이 공학을 필요로 하는 수업을 설계할 때, STOMP에 소속된 대학생과 대학원생들이 직접 수업에 참여하여 교사와 함께 수업을 이끌어나가도록 도와주는 프로그램이다. 소프트웨어 교육이 많이 활성화되어가고 있는 상황에서 우리나라에서도 이러한 프로그램들을 도입하여 시행한다면 소프트웨어 인재양성에 많은 기여를 할 수 있을 것이라고 기대한다.

• Journal of information and communication convergence engineering
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• 제17권3호
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• pp.213-220
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• 2019

This paper shows that novel engineering (NE) is a creative learning process (CLP) based on Seymour Papert's constructionism. First, the paper introduces NE, CLP, and constructionism. Next, a sample NE lesson is explored. NE is an innovative way of integrating literacy into an engineering discipline that was developed by the Center for Engineering Education and Outreach (CEEO) at Tufts University. NE consists of seven steps: picking a book, identifying problems, designing solutions, building, feedback, upgrading solutions, and reconstructing stories. Lifelong Kindergarten by Mitchel Resnick of the MIT Media Lab describes CLP, and the four elements necessary for a lesson to be creative. NE can be viewed as one of the most creative, comprehensive learning models ever developed. NE integrates several paradigms in Korea, following all the constructs of both CLP and constructionism. The aim of this paper is to show that NE is based on both CLP and constructionism.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2003년도 The Fifth Asian Computational Fluid Dynamics Conference
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• pp.19-20
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• 2003

Brownian-dynamics simulation on highly charged colloidal suspensions is performed by employing Tokuyama effective force recently proposed. The radial distribution function suggests that there exist three novel phases, a gas phase, a liquid droplet phase, and a face-centered cubic (FCC) crystal droplet phase, depending on the minimum values of that potential. The dynamics of droplet growth is also investigated both in liquid droplet phase and in crystal droplet phase. Thus, different types of characteristic growth stages are found.

• Journal of Power Electronics
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• 제16권3호
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• pp.1036-1045
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• 2016

This paper presents a novel control strategy for passive output filter reduction using an active output filter. The proposed method achieves the dual-function of regulating the output voltage ripple and output voltage variation during load transients. The novel control strategy allows traditional simple voltage controllers to be used, without requiring the expensive current sensors and complex controllers used in conventional approaches. The proposed method is verified with results from a 125-W forward converter.

• Journal of Power Electronics
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• 제16권3호
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• pp.946-959
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• 2016

A novel Virtual Space Vector (VSV) modulation strategy for complete control of potential neutral point (NP) issues is proposed in this paper. The neutral point potential balancing problems of multi-level converters, which include elimination of low frequency oscillations and self-balancing for NP dc unbalance, are investigated first. Then a set of improved virtual space vectors with dynamic adjustment factors are introduced and a multi-objective optimization algorithm which aims to optimize these adjustment factors is presented in this paper. The improved virtual space vectors and the multi-objective optimization algorithm constitute the novel Virtual Space Vector modulation. The proposed novel Virtual Space Vector modulation can simultaneously recover NP dc unbalance and eliminate low frequency oscillations of the neutral point. Experiment results show that the proposed strategy has excellent performance, and that both of the neutral point potential issues can be solved.

• Journal of Microbiology and Biotechnology
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• 제21권5호
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• pp.494-502
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• 2011

Coenzyme $Q_{10}$ ($CoQ_{10}$) is a widely used supplement in heart diseases treatment or antioxidative dietary. The microbial production of $CoQ_{10}$ was enhanced by addition of solanesol and novel precursors recovered from waste tobacco. The novel precursors were separated by silica gel and identified as ${\alpha}$-linolenic acid (LNA) and butylated hydroxytoluene (BHT) based on the effect on $CoQ_{10}$ production and GC-MS. The effects of novel precursors on $CoQ_{10}$ production by Sphingomonas sp. ZUTE03 were further evaluated in a two-phase conversion system. The precursor's combination of solanesol (70 mg/l) with BHT (30 mg/l) showed the best effect on the improvement of $CoQ_{10}$ yield. A maximal $CoQ_{10}$ productivity (9.5 mg $l^{-1}$ $h^{-1}$) was achieved after 8 h conversion, with a molar conversion rate of 92.6% and 92.4% on BHT and solanesol, respectively. The novel precursors, BHT and LNA in crude extracts from waste tobacco leaves, might become potential candidates for application in the industrial production of $CoQ_{10}$ by microbes.