• Journal of the Korean Society of Hazard Mitigation
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• v.9 no.3
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• pp.1-7
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• 2009

In order to use recycled aggregate as pavement base or subbase materials, the US and many other European countries have started research since the early 1980s. Korea also had a recycle idea as a plan for the vast amount of construction wastes due to the downtown renovation in the 1990s, but was not put into practical use. After the resources saving and recycle expedition law in 1994, wastes from construction sites that have more than a certain amount of construction budget were recycled as pavement base and subbase materials, but now, researches are being conducted to use them as paving materials. The use of construction wastes is meaningful in many ways. It helps the natural conservation and aggregate consumption, and also improves pavement performance. This research presents a development of cold-mixed reclaimed asphalt pavement materials using recycled aggregates.

• Journal of Korea Multimedia Society
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• v.8 no.3
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• pp.398-412
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• 2005

There is an increasing interest in migration legacy systems to new hardware platforms and to new software development paradigms. The reason is that high maintenance costs and lack of documentation. In order to migrate or transform legacy system, various approaches such as screen scrapping, wrapping, semi-development, and re-development, tools, and methodologies are introduced until now. However, architecture or requirements level's transformation is not suggested because most of those approaches focus on code-level transformation or a few model-level transform. In this paper, we suggest a meta-model driven approach applying 3D space concept, which can be applied into architecture and requirement phase. Proposed integrated model drives seamless migration or co-evolution from code to architecture of reverse engineering and from architecture to code of forward engineering.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.390-394
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• 2009

우리나라의 강우특성 및 지형여건상 최근 농촌지역 하천의 건천화가 급속히 진행되어 전통적인 농촌지역 하천의 기능이 줄어들고 있다. 하지만 건천화 원인에 대한 과학적인 분석은 극히 저조하다. 농촌지역 소하천의 건천화 원인은 다양하게 존재하고, 각각의 원인에 따라 방지 대책이 달라야 할 것이다. 그러나 현실은 일률적인 방지책을 시행하고 있어 그 효율성이 불확실한 상태이다. 농촌지역 소하천 건천화 원인으로 추정되고 있는 기존 저수지 유지수량 미확보, 유휴지 난개발, 지하수 과다사용, 무분별한 하천개수, 하천 퇴사 등이 있음에도 불구하고 정확한 원인분석 없기 때문에 개략적인 방지 대책이 시행되고 있는 실정이다. 국내 중소하천의 생태환경 건전성을 위해서 농업저수지를 비롯한 농업용수의 하천유지용수 공급에 대한 요구가 증대되고 있으므로 이에 대한 적정한 농업용수의 하천유지유량 공급방안 정립이 필요하다. 또한 농촌 소하천 유역에서 상류에 위치한 농업용 저수지는 우선적으로 농업용수를 공급함에 따라 소하천들은 수문순환 과정이 인위적으로 단절되어 심각하게 건천화되어 가고 있으며, 이러한 이유로 안정적인 하천유지용수 확보에 어려움을 겪고 있다. 농촌 소하천의 건천화에 따른 하천수의 부족은 용수확보의 불가능, 수질오염의 심화 등의 문제를 초래함으로써 경제적인 측면에서 많은 손실을 가져오고 있으며 하천이 갖추어야할 친수공간으로서의 기능도 수행하지 못하기 때문에 많은 주민들이 여가 활용과 휴식공간으로 활용하지 못하고 있다. 따라서 현재 농업용저수지의 시설규모를 확장하여 추가적으로 하천유지용수를 확보함으로써 하천의 건천화를 예방하고 향후 확장 가능한 농업용수 전용저수지의 설계방향을 제시코자 한다. 기존저수지의 지역적 요소 및 환경적 요소를 감안하여 저수지 증고에 의한 재개발 방향을 검토 분석하여 물부족에 의한 하천 건천화를 예방하고 추가 용수량의 확보를 할 수 있도록 노력을 해야겠다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.2
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• pp.503-514
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• 2013

Mobile Healthcare is a new type of health care services for managing health and life irrespective of time and space by uniting IT and BT. For this service bio-signal measurement using WBAN, and data analysis and monitoring technologies based on mobile devices are essential. Generally, however, mobile application has low compatibility because of the features of mobile platform, we have to redevelop it to support the corresponding platform. In this paper we introduce a Mobile Healthcare System which can function as gateway and monitoring based on hybrid app to create ubiquitous healthcare monitoring system compatible with various mobile devices by overcoming the difference of platforms. The proposed system consists of sensor composition part, monitoring composition part, and server composition part.

• The Journal of the Korea Contents Association
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• v.9 no.1
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• pp.438-445
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• 2009

Recently, the concern of ubiquitous City(u-City) in each level of governments is on the increase, and they are professing themselves to follow the u-city concept on constructing new urban development or urban renewal project. But the u-city plan and construction proceed as the simple sets of advanced technology without fundamental space concept or space plan of the u-city. Therefore, the u-city as a citizen's living space and a basic urban environment is defined in this article, the viewpoint of the space plan and the recent trends of u-city in korea are reviewed. On the basis of this review, this article proposed an approach of the spatial plan for a u-city construction, here the approach consisted of the 3 stages of planning, constructing, and maintaining of the u-city, and finally the role of the participant in the each stage and spatial hierarchy was proposed.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.10a
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• pp.350-351
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• 2008

현재 우리나라의 측량체계는 크게 측지분야와 지적분야로 이원화되어 있으며 측지분야에서는 2001년도에 측량법을 개정하여 ITRF2000좌표계와 GRS80 타원체를 측량기준으로 사용하는 세계측지계를 도입하였다. 하지만 지적 분야에서는 국민의 재산권과 직접적으로 관련이 있는 필지의 경계와 면적의 변화 연구는 미미한 상태이다. 따라서 본 연구는 2010년 세계측지계 도입 후 지적분야에서 발생할 수 있는 필지별 면적 변동에 따른 사회적 혼란 여부를 판단하기 위하여 서울특별시 종로구 숭인등 숭인4구역주택재개발지구를 연구 대상지로 선정하여 세계측지계 전환에 지적 필지별 면적 변화를 분석하였다. 분석결과 연구대상지는 세계측지계와 지역측지계가 종선(X)축으로 305.87m. 종선(Y)축으로 70.87m 편차로 두 좌표계 간 북동방향으로 313.97m의 차이가 있고, 현행성과와 비교한 결과 종선(X) 방향으로는 평균 +4.0cm, 횡선(Y) 방향으로는 평균 -3.0cm의 차이가 나타났으며, 필지별 면적의 변동량은 $1.0m^2{\sim}3.0m^2$ 차이가 있지만 허용오차 범위 내에 있으므로 세계측지계 전환에는 문제점이 없는 것으로 판단된다. 하지만 본 연구의 결과는 그 대상범위가 한정되어 있고 기 검증된 지적기준점 성과를 사용한 결과이므로, 향후 보다 효율적인 세계측지계 전환과 도입을 위해서는 현 지적기준점체계의 정확한 세계좌표계 변환 성과를 기준으로 한 대단위의 필지별 면적 변동량 및 허용범위 분석과 같은 추가적인 연구가 조속히 이루어져야 할 것으로 판단된다.

• The Journal of the Korea institute of electronic communication sciences
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• v.5 no.6
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• pp.602-612
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• 2010

In this paper, we propose an object-oriented modeling technique using UML(Unified Modeling Language) for accessibility of user and efficiency of facilities under Web-based integrated manufacturing management system application. For this, we first collect user requirements and related technology of integrated manufacturing system, and then design proposed system considering business flow and various essential design part(class, component, package, use case, and etc) to reduce system risk as well as communicate peacefully between developers in system redevelopments. Additionally, we develop database of manufacturing master code, check management, repair management and error management for proposed systems. Finally, we design and implement our three main modules; manufacturing check module, manufacturing repair module, manufacturing error module under Web-based environments with JSP language.

• Journal of the Economic Geographical Society of Korea
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• v.11 no.1
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• pp.148-163
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• 2008

As with cities, all components of a campus must be carefully calibrated to provide the facilities, services like energy, water, electricity, information and communication; classrooms, libraries and laboratories for working; transportation networks and systems for movement of persons, goods, and services; athletic and other facilities for health and competition; places to eat, recreate and socialize; places to display and store works of arts; spaces for the performing arts' spaces for active assembly or solitary pondering. The goal of this study is how to observe the campus planning and development as a part in the context of the community. This study was taken into account neighborhood concerns and Harvard design guidelines. As an observer for the university's northern campus edge, this study suggests in the context of a long and sometimes turbulent history of dialogue and negotiations between Harvard University and first host community, Agassiz which is one of Cambridge's thirteen neighborhoods.

• Journal of Korea Port Economic Association
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• v.24 no.3
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• pp.1-22
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• 2008

This paper deals with the waterfront development in Gwangyang Port (GP), Korea. This study aims to identify the waterfront development type and suggest its policy direction of international GP, Korea. It consists of three main sections: basic theory of port waterfront development, analysis of the experiences in port waterfront development, and the type and its policy directions of waterfront development in GP. This research is mainly based on a review of current reports / papers, an analysis of secondary data and a consultation with related experts. Port waterfront is an important area for increasing Gwangyang's attractiveness and strengthening its competitiveness. Considering port function in urban area, Gwangyang should thus implement the comprehensive plan for the port waterfront.

• Journal of Korea Spatial Information System Society
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• v.2 no.1 s.3
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• pp.43-55
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• 2000

Because the complexity in the development phase of geographic information system, its hard to change its operation or user interface after the development. So we should develop most part of the applied GIS even though previous GIS is almost exist. In other words, reusing the previous system is not easy. Therefore, its required to research reusable GIS for easy construction of applied GIS. This thesis describes design and implementation of web GIS framework which makes applied web GIS development more easy. Framework is software library composed of reusable units such like classes and objects. Proposed web GIS framework Provides basic web GIS functionalities and execution design to web GIS developers. They could extend the framework to build applied web GIS with applied operation and user interface. The development of applied web GIS could be archived by various tools used for general web application development.