• Structural Engineering and Mechanics
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• 제71권4호
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• pp.363-375
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• 2019

A renewable energy storage pile foundation system is being developed through a multi-disciplinary research project. This system intends to use reinforced concrete pile foundations configured with hollowed sections to store renewable energy generated from solar panels attached to building structures in the form of compressed air. However previous research indicates that the compressed air will generate considerable high circumferential tensile stresses in the concrete pile, which requires unrealistic high hoop reinforcement ratio to avoid leakage of the compressed air. One possible solution is to utilize fiber reinforced concrete instead of placing the hoop reinforcement to resist the tensile stress. This paper investigates nonlinear structural responses and post-cracking behavior of the fiber reinforced concrete pile subjected to high air pressure through nonlinear finite element simulations. Concrete damage plasticity models were used in the simulation. Several parameters were considered in the study including concrete grade, fiber content, and thickness of the pile section. The air pressures which the pile can resist at different crack depths along the pile section were identified. Design recommendations were provided for the energy storage pile foundation using the fiber reinforced concrete.

• 한국컴퓨터정보학회논문지
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• 제19권10호
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• pp.221-230
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• 2014

이 연구에서는 학생들이 황새 복원과 관련된 주제의 프로젝트를 수행하는 과정에서 여러 학문의 지식을 활용하여 학습능력이 신장될 수 있는 방법을 제안하고자 한다. 개발 프로그램은 3 4학년군, 5 6학년군 각 4차시 총 8차시이며, 각 차시에서 황새와 관련된 초등학교 교과의 지식이나 개념을 기반으로 창의성, 문제해결능력, 의사소통능력 등의 학습능력이 신장될 수 있도록 설계하였다. 프로그램의 타당성 검증을 위해 총 12명으로 구성된 전문가 집단에 내용타당도 검증방법을 사용하였다. 타당성 평가 결과 분석을 위해서 Lawshe(1975)의 내용타당도 비율(Content Validity Ratio: CVR) 계산 공식을 활용하였다. 검증 결과는 전체 8차시의 타당성 조사 결과 3,4학년 4차시 프로그램을 제외하고는 개발 취지에 부합하는 것으로 분석되었다. 3 4학년 4차시 프로그램은 다학문적 연계 영역에 대한 문제점이 제기되었고, 이를 수정하였다. 향후 이 연구에서 제안한 프로그램을 초등학교 학생에게 적용하여 학습능력 향상 효과성 정도를 측정할 필요가 있겠다.

• 한국산학기술학회논문지
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• 제19권2호
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• pp.125-136
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• 2018

대설 재난은 한국에서 태풍 및 호우 다음으로 두 번째로 많은 자연 재해라고 할 수 있다. 대설 재난으로 인한 2005년에서 2014년 사이의 연 평균 경제 피해액은 약 80억원이다. 심각한 경제적 피해에도 불구하고 한국에서 대설 재난에 대한 경제 효과 연구는 거의 없다. 본 연구의 목적은 다중 회귀모형을 이용하여, 대설 재난의 경제적 피해액과 강설량, 강설일, 인구밀도, 비도시지역 비율 및 수도권 더미 변수 등 간의 연관성을 확인하는 것이다. 2005년부터 2014년 사이의 대설 재난 피해액 관련 데이터는 행정안전부 (국민안전처)에서 발행하는 자연 재해 연보를 이용하였으며, 강설량 및 강설일과 같은 날씨 관련 데이터는 기상청에서 수집하였다. 인구와 비도시 관련 데이터는 지자체 통계 데이터를 사용하였다. 연구 결과 강설일, 강설량, 비 도시면적 비율 등이 대설 재난 피해에 영향을 주는 것으로 나타났다. 본 연구의 결과는 한국의 대설 재난 관리 정책에 적용될 수 있다.

• Perspectives in Nursing Science
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• 제4권1호
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• pp.9-18
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• 2007

Background: Intersectoral and multidisciplinary collaboration is becoming more prominent in all facets of government, health, social services, and scientific endeavors. An interplay of a multitude of driving forces moves multiple disciplines forward to achieve quality outcomes in health and social sciences services and research. Aim: This paper aims at discussing the prospects for future multidisciplinary collaboration. If inter organizational integration and multidisciplinary collaboration are the ways of the future in academia and the scientific world, it then becomes crucial to examine what lies ahead for the nursing profession, Discussion: This paper argues that in order for multidisciplinary endeavors to succeed, the leaders in multidisciplinary teams shoulder the largest share of the responsibilities involved. In developing a lasting team constituting professionals from different disciplines, the leader needs to include the right individuals in the team, identify a common goal, build trusting relationships through open communication and interprofessional education, and empower members through creating room for autonomy and at the same time allowing space for personal development. The leader will need to utilize information technologies to manage communication issues in a large multi-site multidisciplinary project. Lastly, he or she must be able to demonstrate team productivity through process and outcome evaluation. It needs to be emphasized that it falls to each individual nurse to speak up and act upon what nursing believes and represents in our quest for success in multidisciplinary endeavors. Conclusion: The significance of the role of the leader is paramount for a team to succeed. Yet there is no prospect if only a handful of exceptional nurse leaders are moving ahead in multidisciplinary endeavors. Without the actualization of professional roles by each individual nurse, the profession will have no prospect in collaborations across disciplines.

• 디지털콘텐츠학회 논문지
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• 제16권4호
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• pp.651-657
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• 2015

게임공학은 다양한 학문과 공학 기술이 절묘하게 결합된 융합학문이다. 게임개발시 여러학문의 융합과 게임개발간의 관계에 대해서 개발자의 입장에서 고찰하고자 한다. 개발자가 가진 인문사회학적 경험과 지식은 게임에 관한 아이디어를 가다듬는데 많은 영향을 미친다. 본 논문에서는 실제 게임을 제작하는 과정을 통해서 게임기획, 기획된 내용을 바탕으로 한 스토리작업, 효율적인 작업을 위한 팀원들 간의 커뮤니케이션, 최종으로 게임제작을 한다. 동시에 각 프로세스별 여러학문간의 상관관계에 대해서 연구한다.

• International Journal of Fluid Machinery and Systems
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• 제4권3호
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• pp.341-348
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• 2011

The study of bacterial flagellar swimming motion remains an interesting and challenging research subject in the fields of hydrodynamics and bio-locomotion. This swimming motion is characterized by very low Reynolds numbers, which is unique and time reversible. In particular, the effect of rotation of helical flagella of bacterium on swimming motion requires detailed multi-disciplinary analysis. Clear understanding of such swimming motion will not only be beneficial for biologists but also to engineers interested in developing nanorobots mimicking bacterial swimming. In this paper, computational fluid dynamics (CFD) simulation of a three dimensional single flagellated bacteria has been developed and the fluid flow around the flagellum is investigated. CFD-based modeling studies were conducted to find the variables that affect the forward thrust experienced by the swimming bacterium. It is found that the propulsive force increases with increase in rotational velocity of flagellum and viscosity of surrounding fluid. It is also deduced from the study that the forward force depends on the geometry of helical flagella (directly proportional to square of the helical radius and inversely proportional to pitch).

• 한국환경교육학회지:환경교육
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• 제22권2호
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• pp.92-106
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• 2009

We assumed that natural history museums have rooms for functioning as institutions for the environmental education, especially in aspects of multi-disciplinary, informal education. So we set goals of this research as finding 1) how much environmental education contents are reflected in exhibits of natural history museums, and 2) what those characteristics in aspects of dimension, range, and topic are. First, we developed a framework for analyzing of environmental education contents. Second, we applied the framework to seven major natural history museums. As the result, environmental education contents are reflected by 69.1% totally. Especially, the 'knowledge' dimension covered mostly, and among them the range of 'elements of Ecosystem' occupied more than other ranges. With inferring our results, we suggested that characteristics of natural history museums in environmental education are followed; spatial-temporal expansion of bio-diversity concept, visualizing impacts of human activity against nature.

• 인터넷정보학회논문지
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• 제1권1호
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• pp.63-72
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• 2000

데이터마이닝은 방대한 데이터 자료로부터 숨어있는 지식이나 유용한 정보를 추출하는 과정이다. 이러한 데이터 마이닝 알고리즘은 통계학, 전자계산학, 그리고 기계학습 분야에서의 오랜 기간동안 이루어진 연구 결과의 산물이다. 어느 특정한 상황에 적용하는 특정한 기술들의 선택은 구현되어야 하는 데이터 마이닝 임무의 성격과 가용한 데이터의 성격에 의존한다. 데이터 마이닝에는 여러 임무가 있으며, 그 중에서 가장 대표적인 임무가 분류라고 (classification) 볼 수 있다. 분류는 인간 사고의 기본적인 요소이기 때문에 여러 응용 분야에서 많은 연구가 진행되어 왔으며, 문제 분석의 첫 단계라고 볼 수 있다. 본 논문에서는 학습문제에서 강건성(robust)을 갖는 유전자 알고리즘 기반의 분류시스템을 제안하고, 데이터 마이닝에서 중요한 분류기능에 관련된 문제인 nDmC에 응용해서 그 유효성을 검증한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.1505-1510
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• 2008

A railway is a complex system integrated with a lot of technical elements such as trains, track facilities, human factors, operation & control and maintenance. As a mass transportation system, a railway could contain potential risks that may result in a high death rate and property losses. Accordingly, Railroad Safety Technology R&D Corps. is adopting the plan of the construction of Railway Safety Test Facilities as a part of the Railway Total Safety Project to enhance the railway safety, and carrying out researches on effective project management methods with Systems Engineering techniques. Recently, various systems engineering tools such as CORE or Cradle are applied to manage the system requirements and the project management process in the part of the aerospace engineering and automobile engineering so on. The railway industry also makes an effort to develop an efficient management skills using systems engineering tools as the railway system is multi-disciplinary. Therefore, we propose the more effectual management method of constructing the Railway Safety Test Facilities applying the systems engineering tool to the research.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.68-73
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• 2007

Civil engineering construction work has always been accompanied by a high proportion of tasks that are either dangerous or unpleasant or both. Enhancing the general working environment and boosting safety levels are critical issues for the industry. In addition to that, the industry has been slow to utilize automation & robot technology, and there is substantial scope for the use of technology th boost efficiency, cut costs and improve quality levels in construction. In a bid to address this issue, Ministry of Construction & Transportation launched a five-year project in 2003 entitled Development of Intelligent Excavating System. The aim of the project is to use telecommunications and robotics technology to minimize inefficiencies and eliminate the dangerous and unpleasant aspects of tile construction process through the development of specific applications such as IT-equipped construction machinery and advanced construction management systems. In this paper, the project introduces on the research and development content related to multi-disciplinary, a intuitive operator control unit(Robot Technology) included.