• Title/Summary/Keyword: Technology and Education

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Hydrolysis of Rice Bran Oil Using Immobilized Lipase in a Stirred-Batch Reactor

  • Murty, V.Ramachandra;Bhat, Jayadev;Muniswaran, P.K.A.
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.7 no.6
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    • pp.367-370
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    • 2002
  • Candida cylindracea lipase was immobilized by adsorption on acid washed glass beads. It was observed that protein loading of the support depends on the size of the particle, with smaller particle containing higher amount of protein per unit weight. Initial reaction rate linearly varied up to enzyme concentration of 17.25 U/mL. Amount of free fatty acids produced was linearly proportional up to the enzyme loading of 1650 $\mu$g/g of bead. Achievement of chemical equilibrium took longer time in the case of less protein loading. Degree of hydrolysis was found to decrease in second and third consecutive batch operations on repeated use of immobilized lipase.

Evaluation Algorithm for Coordination Protection Between Recloser and Distributed Generation Relay (분산전원수용가와 리클로즈의 보호협조 평가알고리즘)

  • Kim, So-Hee;Heo, Sang-Won;Rho, Dae-Seok;Seo, In-Yong
    • Proceedings of the KAIS Fall Conference
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    • 2011.05a
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    • pp.69-72
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    • 2011
  • 정부의 녹생성장 정책에 의해서 신재생에너지들의 보급률이 지속적으로 증가되고 있는 실정이다. 특히 배전계통에 태양광/풍력발전 등 분산전원의 설치가 급증함에 따라 기존 배전계통의 조류흐름이 단방향(One direction)에서 양방향(Bi-direction)으로 변화 되어 배전계통의 운용상에 여러 가지 문제점들이 발생할 가능성이 커지고 있다. 따라서 본 논문에서는 분산전원의 배전계통 연계에 따른 보호기기의 정정 및 보호협조검토가 가능한 보호협조 평가알고리즘을 개발하고, 그 알고리즘을 바탕으로 보호협조 평가시스템을 제작하였다. 이 평가시스템에 분산전원 연계 시, 배전계통의 보호기기들 사이의 보호협조를 검토하여 제안한 알고리즘의 유효성을 확인하였다.

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A Study on the Flexible, Reliable, Intelligent and Energy-conservative Distribution System (FRIENDS) (차세대 전기에너지 공급시스템 (FRIENDS)에 관한 연구)

  • Park Jae-Ho;Lim Young-Phil;Rho Dae-Seok
    • Proceedings of the KAIS Fall Conference
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    • 2004.06a
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    • pp.127-130
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    • 2004
  • 본 논문에서는 세계적 추세에 있는 전력산업의 규제완화와 지구규모적인 환경문제, 전기의존도의 증가, 수용가의 다양한 요구 등 배전계통을 둘러싼 환경변화에 대응할 수 있는 차세대 전기에너지공급시스템(FRIENDS)의 기본개념과 운용모델을 제안하여, 기존계통에의 도입적용에 대한 구체적인 실현형태를 제안한다. 여기서, 차세대 배전계통은 유연하게 계통구성을 변화시킬 수 있고, 수용가에 멀티메뉴 서비스를 제공할 수 있으며, 각종 설비의 고효율운전을 가능하게 하는 고유연$\cdot$고신뢰$\cdot$고효율 전기에너지유통시스템을 말한다.

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Basic Studies on the Management of Flexible, Reliable, Intelligent and Energy-conservative Distribution System(FRIENDS) (차세대 전기에너지 공급시스템(FRIENDS)의 운용방안에 관한 기초 연구)

  • Lim Young Phil;Kim Mi Young;Rho Dae Seok
    • Proceedings of the KIEE Conference
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    • summer
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    • pp.101-104
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    • 2004
  • FRIENDS란 차세대 전기에너지 공급시스템으로서 각종설비의 고효율 운전을 가능케 하는 고유연, 고신뢰, 고효율 전기에너지 유통시스템을 말하는 것이다. 최근 정보통신 산업의 발달 및 생활수준 향상으로 전력사용이 급속히 증가한 뿐만 아니라 일상생활의 전기의존도 및 배전계통의 사회적 역할에 대한 수용가 측의 요구가 증가함에 따라 안정적이고 신뢰성이 있는 고효율의 전기에너지 유통시스템의 필요성이 대두되고 있다. 이에 부응하여 차세대 전기에너지 공급시스템(FRIENDS)의 기본개념과 운용모델, 운용방안을 제안한다.

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A Study on AR-based mobile applications for preschoolers (미취학 아동을 대상으로 한 AR 기반 모바일 애플리케이션 연구)

  • Sin, Yeong-Hyeop;Kim, Yeo-min;Seo, Hye-Jin;Kim, Si-Hyun
    • Annual Conference of KIPS
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    • 2020.11a
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    • pp.490-493
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    • 2020
  • Using AR technology, which has recently emerged as an innovative technology, AR mobile application for infants was planned. In the form of combining play and education, children's interest is aroused and access to education to various fields is increased. Unity 3D Engine and Vuforia SDK were mainly used to design Android-based mobile applications.

Examples of online-based math and science learning mentoring : KAIST Science Outreach Program (온라인을 통한 수학, 과학 학습멘토링 운영 사례 : KAIST Science Outreach Program)

  • Kim, Youngmin;Kim, Seong-Won;Ryu, Jiyoung
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2020.07a
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    • pp.635-636
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    • 2020
  • 이 논문은 KAIST 교육기부 프로그램인 KAIST Science Outreach Program에서 운영하고 있는 수학, 과학 온라인 학습멘토링 운영 사례 공유를 통해 온라인 학습멘토링 운영 및 개선 방안에 대한 시사점을 제공하고자 한다. '코로나19'로 인해 발생하는 소외계층 학생들의 교육격차와 양극화 해소를 위해 기존에 오프라인으로 진행되던 학습멘토링을 격주로 수학, 과학 학습 과제를 제시하고, 채점 및 피드백 해주는 방법으로 진행되며, 실시간 화상멘토링과 온라인 질의응답을 지원하고 있어, 현재의 오프라인 학습멘토링이 어려운 상황과 기존의 오프라인 학습멘토링이 갖고 있는 단점들을 해소할 수 있어 참가 학생 및 학부모들이 높은 만족도를 나타내고 있다.

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A Study on the Adequacy of Maritime Safety Training for Fisheries Seafarers (어선 종사자에 대한 안전교육 적정성에 관한 연구)

  • CHO, Jang-Won;HAN, Se-Hyun;KIM, Ki-Sun;LEE, Chang-Hee
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.5
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    • pp.1308-1318
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    • 2016
  • In order to prevent the maritime accident, all seafarers who work on fishing vessels over G/T 20 tons are required to undergo the basic safety training by the Seafarer's Act. 45% of domestic crews have boarded on the fishing vessels. However, the fishermen have been trained in accordance with the STCW(International convention on standards of training certification and watch-keeping for seafarers) Convention. But safety training courses for seaman do not reflect on the safety equipment and the limitation of the fishing vessel in the training contents which is organized in accordance with the merchant ship by STCW convention and code. Most of the fishing vessels are small fishing boat of less than G/T 80 tons. Small fishing vessels are operating with only a minimum of safety equipment that has been defined by the fishing vessel safety equipment standard. Due to the safety training that does not fit the situation of the fishing boat, the level of satisfaction by the crews onboard is low for the training. Furthermore, there is a difficulty in achieving the goal of safety education. In order to carry out the safety training that is suitable for fishermen, it is required to provide appropriate standards for the safety education of workers of small fishing boat, by understanding the current state of the domestic fishing vessels. The purpose of this study is to define the aforementioned problems and to provide the standard for the safety education of fishermen. In order to complete the purpose, the research team has conducted a analyzation for registered domestic fishing vessel and safety equipment standard.

Analysis of Multi-Cultural Education Contents of 'Human Development and Family' Area of Middle School Technology-Home Economics Textbooks in Accordance with the 2015 Revised Curriculum (2015 개정 교육과정 중학교 기술·가정 교과서 '인간발달과 가족' 영역에 반영된 다문화교육 내용 분석)

  • Lee, Seong Min;Yu, Nan Sook
    • Journal of Korean Home Economics Education Association
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    • v.31 no.2
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    • pp.79-94
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    • 2019
  • The purpose of this research study was to examine how multi-cultural education contents are reflected in the contents related to the 'Human Development and Family' area of middle school Technology-Home Economics textbooks, based on the multi-cultural education criteria developed by Paek(2014). The sample of the study consisted of the 'Human Development and Family' contents in 'Technology-Home Economics 1·2' textbooks from five publishers (10 volumes) written in accordance with the 2015 revised curriculum. The research results of the study can be summarized as follows: First, all the four multi-cultural education criterion components were shown in the textbooks from five publishers. Cooperation was shown in the highest frequency, followed by Identity, Diversity, and Equality. Second, the analyses of text, image, and learning activities in the textbooks confirmed that Home Economics as a subject contains multi-cultural education contents that allow students to establish self and identity, respect others, accept diverse family patterns, understand family changes from multiple viewpoints, and form family community culture from gender equality perspective without prejudice. Ultimately, it can be concluded that Home Economics is a subject that enables learners to learn how individuals and families can cooperate and care for each other in order to harmoniously coexist.

A Revision of Evaluation Chart and an Evaluation of Site-Based Environmental Education Programs (체험환경교육 프로그램 보고서 평가틀의 개선 및 프로그램 평가)

  • Park, Tae-Yoon;Noh, Kyung-Im;Jung, Cheol
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.5
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    • pp.1-11
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    • 2004
  • The purposes of this study are to revise an site-based environmental education(EE) Program evaluation chart and to evaluate site-based EE programs using the chart. For revising the evaluation chart, several elements in the former chart were changed, infused, deleted, integrated, or split. The points of some elements in the former chart were also changed. The revised chart consist of 38 elements in 6 areas: purpose and goal, teaching and learning plan, teaching and learning process, educational effect and programs evaluation, Program characteristic, and program operation. Using the revised chart, the researchers evaluated 159 site-based EE programs, funded by the Korean Ministry of Environment in 2002. The result indicated that the mark of 'teaching and learning plan' area is higher than other areas, while the mark of 'educational effect and programs evaluation' is the lowest. On the basis of evaluation, the researchers offered some recommendations for the Korean site-based EE programs.

An Efficiency-based Evaluation for Engineering Education (효율성 기준에 입각한 공학교육 평가)

  • 허은녕;송성수;김태유
    • Journal of Korea Technology Innovation Society
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    • v.2 no.2
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    • pp.249-265
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    • 1999
  • This study examines the efficiency of engineering education using DEA(data envelopment analysis) which is often used in the efficiency evaluation of public services. We evaluate 27 mechanical engineering departments according to academy-basis, general basis, and employment-basis considering students' academic level and input costs as input factors. Our empirical results suggest that an evaluation method using DEA can give us useful informations such as benchmarks to improve education specialization where it is desirable, decisions about whether a department should expand its gross input or not, and proper directions about which input factors should be controlled and how much control is needed.

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