• Agribusiness and Information Management
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• 제7권2호
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• pp.12-18
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• 2015

Since 2000s, proper utilization of IoT (Internet of Things) technology is a key factor for a firm to become more competitive, and this stream is not exceptional for the food and agriculture industry. Along with this stream, Korea government organization, for example MAFRA (Ministry of Agriculture, Food and Rural Affairs), elected to adopt IoT technology, such as USN and RFID technologies, in the food and agriculture industry. Based on the IoT technology, MAFARA launched six "IoT based farm" project in 2007. IoT based farm project includes IoT based greenhouse system project, and it shows drastic efficiency in terms of cost reduction. When it comes to the productivity, however, the effect of IoT based greenhouse system is still ambiguous. In this regard, this study conducted systems analysis and design for IoT based tomato greenhouse in order to help farmers' decision making related to the productivity by establishing standardized database structure and designing output form to analyze productivity indices. Proposed systems analysis and design can be utilized as a data analysis tools by farmers. Productivity data from the proposed systems is can be used by researchers to identify the relationship among environment, plant growth and productivity. Policy makers also can refer to the data and output forms to predict the quantity of fruit during certain period and to revise production guideline more precisely.

• 대한조선학회 특별논문집
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• 대한조선학회 2005년도 특별논문집
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• pp.90-96
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• 2005

This paper presents the results of the reliability analysis of PAU (Preliminary Assembly Unit) seat of the floating Production Storage and Off1-loading Unit (FPSO) The main aim of the analysis was to demonstrate that a sufficient safety of structural members is guaranteed against PAU loads, internal and external pressure, and hull girder moments. Topside loads for PAU design are based on owner's request. According to the seat type, topside loads are classified into maximum values of same seat type for design efficiency. Totally, 26 loading cases for each model are used for this analysis with the combination of the reactions of PAU loafing and the hull girder bending moments according to LR offshore (2). The analysis results are evaluated according to the acceptance criteria for yielding given in LR offshore and guidance note (3) and The panel buckling resistance is verified by LR offshore and SDA (4). For 900,000 bbls FPSO, the PAU support foundation analysis using 3-D F.E. model is carried out to verify the structural adequacy of PAU foundation and structure members in way of PAU. The modified structures in way of PAU support are safe against considered load cases and all stresses in way of PAU support are within design criteria.

• 컴퓨터교육학회논문지
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• 제20권2호
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• pp.13-21
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• 2017

본 연구의 목적은 SW 교육에서 학습자들의 컴퓨팅 사고력을 신장시키기 위한 디자인 중심 모형(NDIS)의 효과를 검증하는 것이다. NDIS는 실생활의 문제를 학습자가 스스로 찾고 사용자의 요구사항을 분석하여 설계하고 구현하는 프로젝트형 학습 모형이다. 이러한 NDIS의 효과를 검증하기 위해 SW 교육 수업 경험이 있는 중급 수준의 G 교육대학교 학생을 대상으로 실험하였다. 비교반에는 전통적인 프로젝트 모형을 적용하였고, 실험반에는 CT 기반의 NDIS 모형을 적용하였다. 실험반은 비교반에 비해 높은 CT 서술형 수행평가 점수를 보였으며 이는 유의미한 차이를 보였다. 또한, 학생들은 컴퓨팅을 이용한 실생활 문제 해결에 대한 자신감과 CT 향상에 대해 긍정적인 인식을 보였다.

• 한국BIM학회 논문집
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• 제12권3호
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• pp.18-29
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• 2022

Recently, research on the application of BIM has continuously been active not only in architecture but also in civil engineering in order to improve work efficiency across the project's planning, design, construction and maintenance phases. However, the empirical applications of BIM targeting to civil engineering scope of construction sites still lags compared to architectural sized projects. This is because BIM tools are mainly based upon vertical structures of architecture, thereby most of them have difficulties and limitations to get utilized on horizontal structures of civil engineering. Therefore, this study intends to propose automation technology of design using BIM library and to indicate its field availability through case application on a railway project representing linear infrastructure. In addition, it put forward the utilization plan of the automation technology upto 4D and 5D by continue making use of the BIM model created in the project's design stage up through the maintenance stage. The novel method of the technology proposed in this paper incorporates the automatic creation of the BIM library based on two-dimensional tunnel cross-sections and sweeping of it over three-dimensional alignment to create a BIM model of linear infrastructure. The proposed technology is anticipated to improve the efficiecny of modeling process of railway projects based on linear structures.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.392-395
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• 2015

This study analyzes critical factors that affect issues of resolving time in BIM-based coordination using a case study. According to recent buildings that are meant to be more complex, BIM-based design coordination is regarded as an essential stage of the project delivery process. In the design coordination phase, a relocation of architectural, structural, mechanical, and electrical elements is conducted to avoid interference. In addition, the procedure of the development of each element in detail for the actual construction is carried out. Delays in coordination can affect delays in the entire delivery schedule of the project, and therefore many researches have focused on efficient coordination methods and how to shorten the period. In this study, we conducted a detailed analysis of the issue-resolving process using a case study, and found out that the participation of decision-makers for issue-resolving and the physical combination of trades affect delays in coordination time. In particular, we proposed the concept of organizational relation, indicating the level of decision-makers for issue-resolving, and the concept of physical relation, indicating the physical complexity of the issue, and we analyzed the effects of coordination delays.

• 한국조경학회지
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• 제33권1호
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• pp.93-108
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• 2005

Fresh Kills is the largest landfill in the world located in the west side of Staten Island, New York. The landfill served as a storage area for New York City's trash for more than 50 years. After years of civilian and political pressure, state and local legislation decided its closure of landfill operation in Fresh Kills in March 2001. Soon after, Department of City Planning announced a Fresh Kills international design com-petition: 'Landfill to Landscape'. The winning entry was promised to be outline for the redevelopment of the 2,200 acre site which the size of three times Central Park. Forty-eight teams representing more than 200 offices from around world submitted proposals, from which six finalists that mostly led by landscape architects were selected. In December 2001, a jury of architects, landscape architects and city officials unanimously selected Field Operations as the winner. The plan, named Lifescape, visualizes the gradual 20-year transformation of the whole Staten Island into a 'natural lifestyle island' recognizing that Staten Island is home to coastal wetlands that shelter one of the most diverse ecosystems in the New York metropolitan area. It suggested that an ecologically reconstituted Fresh Kills could become the center of integrated parks and greenways system on the island otherwise fragmented. The project will be one of the largest and most ambitious undertakings in the metropolis in years developing a complex web of habitats and parklands on top of mountain of trash. This study tries to achieve two goals: One is to provide general explanations on the project, Lifescape, breaking down to its background, geographical context, design concepts and phased development plan. Another is to introduce the unique and innovative design approaches by Field Operations that are different from a conventional landscape architectural attitude. Since this project was well published through many magazines and newspapers, main focus will be upon aspects that differentiate this project from usual landscape projects. Conceptually Lifescape brought provocative notions on nature/culture relationship and the role of urban park as an active agency rather than just a green rest area. Also this project introduced pioneering graphics like plan collage, diagrammatic plan, phasing diagram and photo montage as vehicles conveying information, imagination and provocation. Witnessing the influence of the project gradually in the field of academic and practice in the States, this study is intended to become a constructive reference to similar landscape projects dealing with large and complex urban context in conjunction with restructure of contemporary city.

• 한국건설관리학회논문집
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• 제4권2호
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• pp.91-98
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• 2003

국내 건축설계 프로젝트에서는 협력업체간의 커뮤니케이션이 원활치 못하여 건축 부위 설계 시 성능 및 비용을 만족하는 적절한 설계대안 생성이 어려울 뿐 아니라, 설계단계에서부터 시공단견1에 이르기까지 다양한 원인으로 발생되는 설계변경에 적절히 대응하지 못하고 있다. 따라서 분야별 설계도서의 불일치로 인한 시공 품질 저하 등의 문제가 발생되고 있다. 이에 따라 본 연구에서는 건축설계단계에서 합리적인 건축설계대안 생성을 위한 협력설계 의사결정 지원시스템 구축방법의 개념을 제시하였다.

• 공학교육연구
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• 제19권4호
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• pp.83-88
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• 2016

In this paper, we surveyed from students and professors of Hanbat National University to examine the current state of running the introductory engineering design and to derive the direction of future improvements of the subject. A total of 783 students from nine departments and 12 professors who are in charge of the introductory engineering design participated in the present questionnaire evaluation. Outcome categories of the interest in their major and the learning of design theory appears relatively lower than other learning outcomes of the introductory engineering design course. Accordingly, it is determined that the theoretical aspects of designing should be emphasized in performing a team project. The design process, writing and presentation ability, teamwork theory are dealt in more than 70% of the departments, but engineering ethics, patent, visualization education had not been addressed in a number of departments due to their department characteristics. While a lesson outcome of the creativity resulted in the largest for the students, most of the professor feel difficult in increasing the creativity. It is urgent to develope of teaching methods in order to promote the creativity in the introductory engineering design course.

• 공학교육연구
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• 제11권2호
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• pp.32-41
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• 2008

본 논문에서는 연세대학교 기계공학부에서 개설하는 창의공학설계 교과내용에 대한 소개를 다룬다. 교과목 명은 창의설계프로젝트(1)이며, 본 과목은 기계공학전공으로 새로이 진입하는 학부 2학년 학생들을 대상으로 창의적 사고와 체험적 학습을 기반으로 공학설계능력을 습득하고 문제중심학습 및 설계프로젝트 수행을 통해 아이디어를 구현하며 실제 설계된 제품의 결과에 대한 중요성을 인식하도록 교육한다. 본 논문에서는 교과목의 자세한 구성과 수업내용에 대해 설명하고 수업내용, 문제중심학습 및 설계프로젝트를 통해 평가된 학생들의 반응에 대해 서술한다.

• 디자인학연구
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• 제12권4호
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• pp.139-147
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• 1999

일반적으로 근대 디자인의 역사는 19세기 중반 영국에서 시작된 것으로 이해되고 있다. 이 시기의 유럽은 프랑스 혁명과 한업혁명을 거치면서 성장한 부르주와 계층이 역사의 전면에 부상하며 과거 봉건적 전퉁사회와는 전혀 다른 근대사회를 성립해가고 있었다 새롭게 사회의 주역으로 부상한 부르주아 계층은 그들만의 고유한 새로운 미학을 확립하고자 했고 이러한 과정에서 근대 디자인이 탄생하게 되었다. 본 연구에서는 지난 150여 년간의 디자인의 역사를 근대 프로젝트로서의 디자인 혹은 모던 디자인 프로젝트라는 관점에서 파악하고자 한다. 초기 근대 디자인 이념의 형성과정에서부터 최근의 탈근대 논의에 이르기까지의 디자인 역사를 모던 디자인 프로젝트의 형성과 변질, 그리고 이에 대한 비판과 재평가라는 맥락에서 이해하고자 하는 것은 이ㅓ한 논의가 현재 진행중인 탈근대로의 급격한 전환과정을 이해하고 미래에 대한 전망을 갖게 하는데 도움이 되기 때문이다.