• 대한수학교육학회지:수학교육학연구
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• 제15권2호
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• pp.107-130
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• 2005

이 논문의 목적은 Dewey의 지식론과 교육론에 입각하여 'Dewey의 수학교육론'을 정립하고, 이를 바탕으로 Dewey의 수학교육론이 현대의 여러 수학교육 이론에 어떻게 반영되어 있는지를 밝히고자 하는 것이다. 이를 위하여 프래그머티즘 혹은 도구주의로 불려지는 Dewey의 지식론과, 교육은 경험의 재구성이라는 Dewey의 교육론을 고찰하였다. 이어서 Dewey의 수학교육론을 수학론, 수학교육 목적론, 내용론, 방법론으로 구분하여 체계적인 분석$\cdot$정리를 시도하였다. 그리고 그의 수학교육론이 Piaget의 조작적 구성주의, Freudenthal의 현실주의, Polya의 문제해결 그리고 구성주의 수학교육론 등에 어떻게 반영되어 있으며 어떤 관계를 맺고 있는가를 분석$\cdot$고찰하였다. 이 논문의 이러한 고찰은 Dewey의 수학교육론이 현대의 여러 수학교육 이론의 원형이며 수학교육 현상을 포괄적으로 바라볼 수 있는 하나의 패러다임임을 보여준다.

• 한국산학기술학회논문지
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• 제21권2호
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• pp.448-459
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• 2020

최근 도시재생사업을 실질적으로 추진하는 도시재생지원센터에 대한 논의가 활발히 진행되고 있다. 그 이유는 역할과 권한이 명확하지 않고, 각 지자체 센터별 운영 경험이 축적되지 않아 많은 시행착오와 부작용이 따르고 있기 때문이다. 따라서 본 연구는 충북지역 도시재생지원센터를 대상으로 운영 현황을 분석하여, 향후 바람직한 도시재생지원센터의 운영 방안을 모색하는 데 있다. 이를 위해 기초현황과 설문조사 자료를 활용하였으며, 특히 관계자 심층면담을 통한 현장중심의 연구를 수행하였다. 충북지역 도시재생지원센터는 첫째, 광역센터·기초센터·현장센터간 역할 및 업무분담이 명확하지 않다는 점, 둘째, 센터 운영 방식의 한계와 운영 자율성 및 독립성이 확보되지 않은 점. 셋째, 도시재생 참여주체로써 행정에 비해 상대적으로 매우 낮은 권한과 위상을 갖고 있다는 점. 넷째, 도시재생 관련 전문 인력 확보 부족과 직원 고용의 불안전성이 전반적인 문제점으로 도출되었다. 따라서, 향후 도시재생사업이 더욱 체계적이고 효율적으로 추진되기 위해서는 우선 현장의 목소리에 귀를 기울여 각 지역마다 실제적 여건이 반영될 수 있는 안정적인 운영시스템 구축이 반드시 필요할 것으로 보인다.

• 방사성폐기물학회지
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• 제6권3호
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• pp.233-244
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• 2008

본 연구에서는 경수로 사용후핵연료로부터 핵연료 물질(예: 차세대형 원자로의 연료)로 재사용할 수 있는 우라늄과 초우라늄원소군(TRU)을 분리, 회수하기 위한 파이로 처리공정(pyroprocess) 시설의 개념설계연구를 수행하였다. 이 시설의 목적은 공학적 실증시험을 통하여 상용 규모의 확대(scale-up) 자료를 확보하는 것과 운전 경험을 쌓을 수 있도록 하자는 것이고 그 용량은 비교적 작은 공학적 규모인 20 kg HM/batch 로 설정하였다. 처리 대상 핵연료로는 경수로의 전형적인 핵연료 형태인 3.5 % 농축우라늄, 35,000 MWd/tU 그리고 5년 냉각시킨 경수로 사용후핵연료를 선택하였다. 본 개념설계연구에서 고려한 주요 항목은 차폐셀을 포함한 파이로 처리공정 시설의 배치, 공정 운전에 대비한 시설 안전 관리, 방사선 안전, 차폐셀 내 불활성 분위기 관리, 연료 물질의 계량 관리, TRU 제품의 핵임계 관리 등이다.

• 산경연구논집
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• 제10권5호
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• pp.49-58
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• 2019

Purpose - Consumer behaviors or decision-making process has been changing recently as the consumer environment, including mobile everyday life, has changed. In view of this changing consumer smart environment, this study aims to investigate structural relation about the influence omni-channel propensity and regulatory focus on consideration set formation. Research design, data, and methodology - In order to proceed with this study, we review previous studies and setting hypotheses. The hypothesis was verified through a survey that was conducted for university students with experience in purchasing in less than three months. With reference to previous studies, operational definition was made for the questionnaire design. From 2018 Nov. to 2019 Feb. Survey was conducted on the panel consumers who purchase item within that period. 315 collected survey data were used to verify hypotheses except the data that had incorrect values. This data were used for SPSS/AMOS for confirm hypothesis which developed by researcher. Results - The results of this study are as follows. First, Consumers were considering a more heterogeneous alternatives if they were more omni-channel propensity in the process of forming consideration set. Second, Consumers were more conscious of the price if they were more omni-channel propensity Third, Consumers were considering a more newness alternatives if they were more omni-channel propensity in the process of forming consideration set. Meanwhile, The results of the study on regulatory focus and consideration set relationships are as follows. Consumers were considering a more heterogeneous alternatives if they were more promotion focus tendency in the process of forming consideration set. Second, Prevention focus tendency were more conscious of the price in the process of considering alternatives. Third, Consumers were considering a more newness alternatives if they were more promotion focus tendency. Conclusions - Depending on the changing consumer environment, the omni-channel propensity was shown to influence the formation of the consideration set. Also, Regulatory focus of consumers significantly influence to formation of consideration set. this study also contributes to the development of the theory as well as the practical approach with understanding consumer decision process on smart(mobile) environment.

• 한국지역사회생활과학회지
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• 제22권1호
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• pp.5-20
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• 2011

It is very important that the development of rural tourism resources and contents for agritourism increases rural household income and vitalizes local economy. In this sense, accelerating the rural traditional food materials into resources plays significant roles for the local economy. The farm-restaurant project, as a part of a development of rural traditional foods can not only help popularize the rural food-culture, but it also promote the consumption of local products by urban customers. It is difficult to manage both types of restaurants which are the dining type and the experience-centered farm restaurants as a farmer. In particular, the managers of the farm restaurants have some operational problems in developing a new menu and an experiential-program using their local farm products. The purpose of this study was to present steps that can be used for the existing menu-improvement and developing new menu processes of the farm restaurants that have been in operation for more than two years. By the purpose of menu developing for a restaurant, this research is designed for the case study. For collecting date for the study, we gained knowledge about the issues concerning menus from in depth interviews with the managers in two subject farm restaurants. The results suggested that a new menu, such as table d'h$\^{o}$te, $\`{a}$ la carte meals, specialties, kids meal, various dressing, are based on solving issues such as a limitation of food materials and the necessity of a kids meal in dining type of farm restaurants. Also, the suggested new menu, such as seasonal specialties and side dishes, are based on solving issues such as urgent development of various experiential programs and necessity of seasonal specialties in experiential type of farm restaurants.

• 한국지역사회생활과학회지
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• 제27권spc호
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• pp.625-634
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• 2016

This study aims to verify the effect of the rural community living home use through an analysis of depression among the elderly women who live alone in the rural community living home. A survey was conducted from July to September 2015 through direct interviews with 236 elderly people who live alone in community living homes at 52 locations across the country. The main results of this study are as follows. First, social support from family/relatives and neighbors/friends was found not to affect depression in the elderly living in community living homes. Second, satisfaction with health status, economic status and life appeared to affect their depression. This indicates the need for various measures to increase the subjective satisfaction of health. Third, when the demographic characteristics, social support and personal satisfaction were controlled, the period of use, satisfaction with use and operational service/no service were proven to have an impact on depression in the elderly living alone in community living homes. In other words, since the level of satisfaction with community living homes is very high and this has a positive impact on the elderly living in community living homes, it is desirable to have an ongoing policy for the homes to be utilized as important welfare resources. Based on these findings, this study proposes improvements in the user experience and programs and services offered for rural community living home business programs.

• Structural Engineering and Mechanics
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• 제57권6호
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• pp.1125-1142
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• 2016

Tunneling is one of the challenging tasks in civil engineering because it involves a variety of decision making and engineering judgment based on knowledge and experience. One of the challenges is to construct tunnels in risky areas under shallow overburden. In order to prevent the collapse of ceilings and walls of a large tunnels, in such conditions, either a sequential excavation method (SEM) or ground reinforcing method, or a combination of both, can be utilized. This research deals with the numerical modeling of L-profiles and pipe fore-poling pre-support systems in the adit tunnel in northwestern Iran. The first part of the adit tunnel has been drilled in alluvial material with very weak geotechnical parameters. Despite applying an SEM in constructing this tunnel, analyzing the results of numerical modeling done using FLAC3D, as well as observations during drilling, indicate the tunnel instability. To improve operational safety and to prevent collapse, pre-support systems, including pipe fore-poling and L-profiles were designed and implemented. The results of the numerical modeling coupled with monitoring during operation, as well as the results of instrumentation, indicate the efficacy of both these methods in tunnel collapse prevention. Moreover, the results of modeling using FLAC3D and SECTION BUILDER suggest a double angle with equal legs ($2L100{\times}100{\times}10mm$) in both box profile and tee array as an alternative section to pipe fore-poling system while neither $L80{\times}80{\times}8mm$ nor $2L80{\times}80{\times}8mm$ can sustain the axial and shear stresses exerted on pipe fore-poling system.

• 전기학회논문지
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• 제66권4호
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• pp.605-612
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• 2017

One of the biggest environmental issues that our world has been facing is climate change. In order to cope with such environmental issues, the world is putting a great deal of effort into energy conservation. The building sector, in particular, consumes 36% of the energy consumed worldwide and emits considerable amount of greenhouse gases. Therefore, introduction of renewable energies in the building sector is highly recommended. Renewable energy sources that can be utilized in the building sector include sunlight, solar heat, geothermal heat, fuel cells and wind power. The wind power generation system which converts wind energy into electrical energy has advantages in that wind is an unlimited and pollution-free resource. It is suitable to be connected to existing buildings because many years of operational experience and the enhanced stability of the system have made it possible to downsize the electrical generator. In case of existing buildings, it is necessary to consider the live loads of the buildings to connect the wind power generation system. This paper, through the connection of the wind power generation with existing buildings, promotes reduction of greenhouse gas emissions and energy independence by reducing energy consumption in the building sector. In order to connect the wind power generation system with an exciting building, the live load of the building and the area of the rooftop should be considered. The installable model is selected by comparing the live load of the building and the load of the wind power generation system. The maximum number of the wind turbines that can be installed is obtained by considering the separation distance between the wind turbines within the area of the rooftop. Installations are divided into single installations and multiple installations of two different types of wind turbines. After determining the maximum installable number, the optimal model that can achieve the maximum annual power generation will be selected by comparing the respective total annual amount of the power generation of different models.

• 정보교육학회논문지
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• 제17권1호
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• pp.43-52
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• 2013

로봇은 프로그래밍 교육의 도구로서 창의적 문제해결능력과 논리적 사고력 신장에 효과적이다. 또한 학습자에게 실제적, 조작적 학습경험을 제공하므로 교과학습의 도구로 활용될 때 학습내용의 구체적 이해를 돕고 능동적인 학습참여를 이끌어 낼 수 있다. 본 연구는 초등학교 수학 수업에서 로봇의 도구적 쓰임에 주안을 두고자 한다. 따라서 로봇의 기능 분석, 기능별 교육적 활용 방안 추출 후 4학년 수학교과와 연계된 수업 액티비티를 개발하였다. 로봇활용 수학수업을 10차시 실시한 후 성취도 평가, 학생 호감도 조사하였다. 연구 결과 성취도에서 유의미한 차이는 확인되지 않았다. 하지만 설문에서 로봇이 수학 수업의 흥미와 적극적 수업참여를 이끌어내며 수학개념을 이해하는 데 도움을 준 것으로 나타났다. 면담 결과에서도 기존의 수학수업에선 찾기 힘든 역동적이고 협력적인 의사소통, 체험적, 실천적인 수업 등의 긍정적 반응이 나타났다.

• 한국정보통신학회논문지
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• 제18권4호
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• pp.1000-1006
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• 2014

본 연구는 스마트폰에서 OTT 서비스 이용이 활성화되고 있는 것에 주목하여 텔레비전 콘텐츠 시청 행위 추적 방법의 설계를 제안한다. 이를 위해 기존 OTT서비스 어플리케이션을 활용하여 시청 맥락의 흐름(flow)과 패턴을 기록하는 로그 파일 기록 어플리케이션을 개발하였다. 본 논문에서 제시한 로그 파일 포맷은 기존의 분단위 시청률 조사방법이 아닌 초단위 측정으로 이용자 스마트폰을 통한 시청 행위와 시청 시간을 정확하고 정밀하게 측정할 수 있었다. 또한 실시간 방송 VOD 광고 콘텐츠 속성 및 플레이 모드에 따라 나타나는 시청 행태를 발생 이벤트에 따라 추적할 수 있었으며, GPS 데이터를 로그 파일 기록과 매칭한 결과 시청의 공간적 맥락을 분석할 수 있었다. 연구 결과를 바탕으로 패널을 이용한 통합시청률 조사 또는 모바일 민속지학(Mobile Ethnography) 에서의 방법론적 활용과 같은 학문적 실무적 의의를 논의하였다.