• Journal of Digital Convergence
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• v.15 no.10
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• pp.405-410
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• 2017

The purpose of this study is to suggest the guideline by analysing and categorizing the case of sharing economy service especially the co-working and co-living space based on Europe. I did some literature research followed with evaluation of theoretical backgrounds, present conditions. Also, Some case research based on the keyword of 4th industrial revolution and the space categorized by their characteristics. The result indicate that co-working and co-living space's features correlated with their characteristics of the location and birth of digital nomad life. Each space has their flat-form community for the needs of closer cooperation between the user and user in common. I expect this study will become a good resource for upgrading domestic co-working and co-living space and also I hope that this study can guide follow-up next studies.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.4
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• pp.833-838
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• 2014

Recently the use router is to allow multiple computers by one IP can be connect to the Internet. Also, the PC or server in order to use a Web server or a print server, Web Hard, P2P should be settings. In this paper, we are building a multi-functional Web server that using a router supported OpenWRT based on network settings and firewall settings and a variety of services. A web server can be provided the Internet phone and secure multimedia service Web server router based OpenWRT may be provided through a mobile app and the PC application service.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.1055-1057
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• 2013

Routers currently used in homes and institutions have a function of multiple computers to connect to the Internet with a single IP address. It is possible only through setting or establishing a separate operation in a used PC or server to function as a web/printer server, web hard, and P2P. In this paper, by utilizing the OpenWRT Linux-based through the construction of the Web server through a router OpenWRT of (Open Wireless Router) base, to build a server simple compact, low power consumption, low cost, to operate by reliability to provide Internet telephony and multimedia services high securely over the server security, which is based on the setting of policy and various firewall at the same time the configuration of the network utilizing OpenWRT router that can be enhanced, to construct a Web server through a router multi functional can receive the provision of services using the program PC and mobile APP.

• Journal of Korean Philosophical Society
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• v.143
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• pp.1-26
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• 2017

Wright wants to create a democratic egalitarian society through his real utopias project where everyone is guaranteed the access to material and social means or opportunities for human flourishing and where democracy is maximized. However, he does not provide a convincing rationale for his democratic egalitarianism. This paper shows that the basic income derived from the equal rights to commons can be a convincing basis for his democratic egalitarianism. This paper then restructures his real utopias project into a more consistent system based on the basic income derived from commons. It also argues that Wright's vision of Real Utopias overlaps with the vision of a 'sharing society', a 'society based on democratically managed and controlled commons and basic income'. This article therefore argues that the Real Utopias Project and the basic income project can on the one hand develop based on these overlaps and correlations and on the other, based on each other's results.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.6
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• pp.1323-1328
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• 2021

In this paper, we present a medical electric scooter sharing platform for the transportation vulnerable who are experiencing difficulties and inconveniences in moving. The proposed medical electric scooter sharing platform for the transportation vulnerable includes basic mobile rental, return, and functions that incorporate the IOT technology of the currently operating personal mobility sharing platform. The safety function has been strengthened. The medical electric scooter sharing platform for the transportation vulnerable stores driving data on the server in real time through GPS, and strengthens the alarm and call function in advance of an accident to enable rapid SOS processing. By making the quick contact and responding to the situation, people with disabilities can drive safely and comfortably.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.115-119
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• 2002

In the recent you, as the development of computer network and web, the amount of electric document exchange is dramatically increased through B2B, B2C, electric bid and et cetera. The medical world also needs to share and exchange good information for medical treatment like H2C(hospital to hospital), H2C(hospital to company). In this paper, we design medical information model using DTD and inplement medical information support system based on xml and xslt.

• Journal of Information Management
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• v.25 no.3
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• pp.1-27
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• 1994

CDLIB system, a CD-ROM network system constructed in the KTRC, made all the users connected with KTRC TRAN share the many CD-ROM drives and the massive information on the CD-ROM discs. The system is composed of CD-ROM network server, file server and the software which allows the users to retrieve CD-ROM discs through the network. This system has the following strong points : cost-effectiveness in the aspect of sharing the CD-ROM resources in the LAN environment and high system performance.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05a
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• pp.129-132
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• 2003

그리드와 같은 대규모 컴퓨팅 자원이 연결되어 이용되는 분산처리 환경에서 가장 중요한 기능중에 하나가 자원 탐색(lookup)기능이다. 찾기 기능은 미리 정해진 형태로 지원을 등록하고 이 정보를 중앙에서 관리하는 단일기관이나 소규모로 분산된 컴퓨팅 자원을 공유하는 환경에서는 문제되지 않는다. 그러나 임의로 가입과 탈퇴가 가능하고 대규모로 자원이 연결된 그리드 환경에서는 빠른 자원 탐색이 성능의 기본 요소가 된다. 이 논문에서 그리드 환경에서 자원탐색 방법으로 분산형 자원탐색 방법인 Chord시스템을 이용하고 자원탐색방법을 신뢰성 있게 유지하기 위해 메시지큐를 이용하여 시스템을 모델링하고 시스템을 설계한 내용을 기술하였다. 이를 위하여 Chord시스템에 Message Queue System을 통합하여 응용 프로그램에서 요청한 자원탐색을 메시지 큐에 저장하여 노드가 failure되거나 네트워크가 분할이 되더라도 메시지 큐에 저장된 내용을 바탕으로 일관성을 유지할 수 있는 방법을 제시하였다.

• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2408-2410
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• 2003

본 논문에서는 여러 대의 모바일 로봇을 이용해 미지의 환경에 대한 맵핑을 보다 빠르고 효율적으로 행할 수 있는 방법을 제시한다. 각각의 모바일 로봇은 충돌 회피, 경로 설정 등의 기능 이외에 서버와의 통신 및 로봇간의 통신을 통해 맵핑에 관한 정보를 공유해 빠른 시간이내에 신뢰할만한 맵핑을 행할 수 있고 서버에서의 명령을 통해 부가적인 기능을 수행할 수 있다. 여러 대의 모바일 로봇을 이용한 맵핑에서 가장 중요한 것은 신뢰할만한 Navigation 이다. 이를 위해 엔코더와 ONS(Optical Navigation System)을 이용해 정확한 Localization을 행하였으며, 초음파 센서를 이용해 장애물의 위치 및 거리를 파악해 미지의 영역에 대한 맵핑을 수행하였다. 제안된 방법의 검증을 위해 시뮬레이션을 행하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.553-555
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• 2007

클러스터 시스템은 가격대 성능비의 효율성 때문에 다양한 분야에서 활용되고 있으며, 구축 규모도 급속히 증가하고 있다. 특히, 인터넷을 통한 정보 검색 및 공유가 활발하게 이루어지면서, 정보를 수집, 가공 및 제공하는 대형 포털들의 규모가 급속히 증가하고 있다. 포털들은 대량의 정보를 서비스하기 위해서 대규모의 클러스터 시스템을 운영하고 있으며, 이러한 시스템을 유지 관리하는 것은 커다란 문제점중의 하나이다. 대규모 클러스터 시스템의 운영 비용중에서 전력비용이 상당히 큰 부분을 차지하고 있으며, 이를 감소시키려는 다양한 시도가 진행되고 있다. 본 논문에서는 클러스터 시스템의 전력사용량을 감소시키기 위해서 CPU 의 전력을 효율적으로 관리하는 있는 관리 메커니즘을 제안한다.