• 한국경영과학회지
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• 제22권4호
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• pp.81-92
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• 1997

The terminology such as ecology, environment problems, ecosystems, ecofactory, and others related to environmental problems have been recently used in manufacturing systems, since the modern industries have to consider a global ecological crisis. The indifference of recent environmental problems which may be faced now has been paid attention to all engineering areas. In this paper, manufacturing functional requirements such as disassembly, disposal, disposal, or recycling are considered in the integrated product design development, which have not been considered well in the preliminary design stage. Those functions will contribute to reduce the waste and to long the product life cycle, which also satisfies the business benefits and customer requirements. The concurrent design concepts should be applied to integrate all possible factors. Therefore, few practical concurrent engineering tools are presented in here. The objective of this paper is to develop a called green manufacturing systems for integrated product design development by concurrent design concept which can give the desirable result in product design.

• 동굴
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• 제63호
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• pp.9-19
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• 2004

본 연구는 동굴자원의 실태와 문제점을 분석하고, 이를 토대로 발전방향을 도출하여 동굴관리에 기여하는데 목적이 있다. 연구내용은 동굴의 유형과 형성요인을 비롯하여 동굴의 이용 및 동굴자원의 특성과 변화요인을 분석하고 이를 기초로 문제점과 발전방향을 고찰하였다. 연구결과 정책적으로 동굴의 환경진단 실시하고 보전대책의 수립하여 동굴오손 및 동굴오염을 방지하려는 종합적인 노력이 필요할 것으로 나타났다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2004년도 임시총회 및 추계학술발표회
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• pp.17-19
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• 2004

Recently, we have recognized that ‘Soil Environmental Prevention Act’could not provide perfect solutions on many complicated problems which are now emerging and/or can be solved by adopting comprehensive policies. In this study, some suggestions were made to solve a few tangled problems such as conducting the Land Partnership Plan(LPP) project, investigating soil and ground water contamination of the industrial area, building a integrated information system for soil and ground water, establishing detailed guidelines for remediation and verification, and re-constructing the legal and institutional framework for integrated management of soil and ground water. These suggestions may help policy makers to build conceptual frameworks for solving these problems.

• 한국지열·수열에너지학회논문집
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• 제5권2호
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• pp.7-12
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• 2009

The fossil fuel has been used as the main resource of national development. Through this process, many environmental problems have happened. For example, we depend 97% energy on import for national spending and the exhaustion of the fossil fuel is at an important issue nowadays. So more people are interested in renewable energy which is more environmental and never be gone. However, the supply doesn't go on smoothly because of some problems such as capital condition, the limitation of geographical features and low technology, etc. In conclusion I'd like to check some policies and support systems about renewable energy first, and then to find problems for adapting other area through the comparison in this thesis.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.337-349
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• 2009

In recent years, the cutting and banking areas along the railway in Korea are exposed to the erosion problem during every year. The reinforcement is a composite construction material in which the strength of engineering fill is enhanced by the addition of strong tensile reinforcement in many different types. Various problems of the railway infrastructure have occurred due to the differential settlement, frost heaving, mud pumping, lack of bearing capacity, partially loss of embankment. In advanced countries, railway roadbed reinforcement is applied to solve these problems on railway roadbed. This paper presents the solution of such problems by means of the engineering works incorporated with railway reinforcement infrastructures such as geotextile bag method, existing grouting method, geocell, reinforced earth, soil nailing and so on.

• International Journal of Advanced Culture Technology
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• 제11권4호
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• pp.74-80
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• 2023

Currently, hardware companies such as Oculus, Samsung, and HTC are producing virtual reality devices, and game software development companies are developing or servicing VR games using these devices. Accordingly, the VR game market is expected to continue to grow in the future. However, in order for the VR game market to become active, various problems raised during game development and service must be resolved. This paper investigates solutions to problems raised during the development and service of VR games, such as cyber sickness, risk of injury due to environmental restrictions during play, and reconnection induction problems. Cybersickness can be alleviated by utilizing multiple GPUs for each display processing to achieve higher frame rates and optimizing play space design. Environmental constraints during play can be mitigated by optimizing space design, and the problem of inducing reconnection can be solved by continuously providing the motivation and purpose used in existing game methods. Through this, we were able to apply it to develop VR content that can be played continuously.

• 환경정책연구
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• 제8권3호
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• pp.27-51
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• 2009

본 연구는 도시화 과정의 하나로 일어나는 개발사업이 지속가능한 형태로 추진되기 위한 방안을 모색하였으며, 그 중에서도 현재 대규모 개발사업인 신도시를 중심으로 적용하고 있는 환경생태계획의 실태와 문제점을 심층 검토하고 개선방안을 도출하고자 하였다 특히 도시 관련 개발사업 중 크게 구분할 수 있는 도시개발사업(도시개발법에 근거)과 택지개발사업(택지개발촉진법에 근거)의 입지 및 개발방식의 차별성을 고려하여 개선방안을 제시하였다. 우선, 선행 연구결과들을 바탕으로 설정한 원칙과 문제점에 근거하여 환경생태계획 대상 사업 규모를 설정하였으며, 환경생태계획의 절차적 개선방안에서는 크게 입지 및 지구지정 단계, 개발계획단계, 실시계획 단계, 사후관리 단계로 구분하여 문헌과 전문가 의견수렴을 바탕으로 문제점 및 해결방안을 제시하였다. 계획체계 측면 개선을 고려한 환경생태계획의 내용적 범위는 계획의 개요, 환경생태구상, 공간구조 골격 구상, 도시환경 재생 및 영향 저감계획으로 구분하여 도출되었다. 특히 도시개발사업은 복원 혹은 새롭게 창출해야 하는 조성녹지 확보와 이를 고려한 생태적 연결성 확보, 그리고 생태면적률 확보가 택지개발사업은 보전지역과 환경용량, 광역녹지축 등의 고려가 차별성 있게 고려되어야할 것으로 보인다. 이상의 결과들을 종합하여 환경생태계획과 개발계획, 환경성평가 각각의 기능과 연계성을 정립하였으며, 이들 간의 연계성 정립을 통해 장기적으로 지속가능한 토지개발이 가능한 형태로 발전될 것으로 판단되었다.

• 디지털융복합연구
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• 제22권1호
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• pp.1-14
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• 2024

본 연구는 제주특별자치도의 탄소중립 실효성 제고를 위헤 도내 초·중·고에서 실시하고 있는 학교 환경교육은 제외하고, 사회 환경교육의 실태를 문헌연구를 통해 파악하여 부족한 점 또는 문제점을 도출하고, 사회 환경교육을 체계적이고 통합적으로 운영하는 방안을 구축하는 데 목적이 있으며, 도출된 방안은 탄소중립 실효성 제고를 위해 환경에 대한 인식 전환과 친환경적 행동 유도의 지침서로 활용할 수 있을 것이다. 연구 결과 제주특별자치도는 현재 위탁 중인 환경교육센터의 내실 있는 운영과 지원을 통해 도내에 분산 운영되고 있는 환경교육 기관·단체 및 전문가 그룹과 협의체를 구축하여 환경교육 정책수립에 필요한 현황 파악, 콘텐츠 개발, 정보공유, 역할 분담과 정기적 소통·공감 및 정책 피드백이 이루어 질 수 있도록 플랫폼을 구축하고 환경문제를 올바르게 인식할 수 있도록 감성을 자극하고 환경문제를 자기화하는 현장을 중심으로 한 현장 환경교육의 필요성을 강조하고 있다.

• Interaction and multiscale mechanics
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• 제1권1호
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• pp.33-51
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• 2008

This paper investigates the modelling of coupled soil-structure interaction problems by domain decomposition techniques. It is assumed that the soil-structure system is physically partitioned into soil and structure subdomains, which are independently modelled. Coupling of the separately modelled partitioned subdomains is undertaken with various algorithms based on the sequential iterative Dirichlet-Neumann sub-structuring method, which ensures compatibility and equilibrium at the interface boundaries of the subdomains. A number of mathematical and computational characteristics of the coupling algorithms, including the convergence conditions and choice of algorithmic parameters leading to enhanced convergence of the iterative method, are discussed. Based on the presented coupling algorithms a simulation environment, utilizing discipline-oriented solvers for nonlinear structural and geotechnical analysis, is developed which is used here to demonstrate the performance characteristics and benefits of various algorithms. Finally, the developed tool is used in a case study involving nonlinear soil-structure interaction analysis between a plane frame and soil subjected to ground excavation. This study highlights the relative performance of the various considered coupling algorithms in modelling real soil-structure interaction problems, in which nonlinearity arises in both the structure and the soil, and leads to important conclusions regarding their adequacy for such problems as well as the prospects for further enhancements.

• 한국환경과학회:학술대회논문집
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• 한국환경과학회 2003년도 International Symposium on Clean Environment
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• pp.5-10
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• 2003

This paper explores not only emerging scientific problems but also the difficulties communicating air quality issues into an increasingly sensitive the public and policy arena. The public understanding and trust in air pollution information and indices may be very different to the notions of validity or accuracy that are important for a scientist. We operate in a world where openness requires us to reveal both the difficulties and disagreements in our understanding of the polluted atmosphere. Yet this can be confusing and increase complexity in situations where clear political and social decisions are required. I am going to examine these issues, starting with questions of what substances we regard as pollutants and the difficulties of getting the correct balance of concern given the broadening the base of chemicals emitted to the environment. There are also questions of exposure particularly in terms of vulnerable populations, who may spend large amounts of time indoors, where air is rarely monitored. In contemporary society there are pollution problems that extend far beyond urban areas and we have to consider regional issues such as windblown dusts, smoke from forest fires along with issues of the emission of green house gases and ozone depleting substances. Finally I will discuss the issues of communicating with a concerned public and sceptical politicians and the troubling interface between technological and sociological control. Such complexity is often missed in a maze of seemingly stronger political and social needs.