• Journal of Communications and Networks
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• v.16 no.5
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• pp.534-547
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• 2014

Large-scale failures resulting from natural disasters or intentional attacks are now causing serious concerns for communication network infrastructure, as the impact of large-scale network connection disruptions may cause significant costs for service providers and subscribers. In this paper, we propose a new framework for the analysis and prevention of network service disruptions in large-scale failure scenarios. We build dynamic deterministic and probabilistic models to capture the impact of regional failures as they evolve with time. A probabilistic failure model is proposed based on wave energy behaviour. Then, we develop a novel approach for preventive protection of the network in such probabilistic large-scale failure scenarios. We show that our method significantly improves uninterrupted delivery of data in the network and reduces service disruption times in large-scale regional failure scenarios.

• Journal of the Economic Geographical Society of Korea
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• v.5 no.1
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• pp.25-48
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• 2002

This study is to clarify the effect of changes of cultural industries, specialized products and regional festival, in "Junwon culture region". According to this study, "Junuon culture region", as border region of Koguryo, Baekje, Silla kingdom, which has not constituted its original culture, must develop its own specialized products based on culture and history of the three kingdoms in modern meaning. In 21st century, cultural industry of "Junuon culture region" must emphasize the role of linking of Koguryo culture which consists of major culture in North Korea. Because regional festival of "Junuon culture region" as place marketing is concentrated in spring and autumn, regional festival must be a package type of interregional network. In 21st century, "Junwon culture region" as border region of Koguryo, Baekje, and Silla, must be the peace place of cultural industry with maximized merit and high accessibility at present time. And with development of knowledge and information society, cultural industry estate must bring up regional network centralizing Cheongju city.ng up regional network centralizing Cheongju city.

• 한국정보통신설비학회:학술대회논문집
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• 2003.08a
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• pp.16-19
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• 2003

이동통신 가입자의 폭발적인 신장세와 더불어 발전하는 이동통신기술의 놀라운 발전은 유비큐토스(Ubiquitous)라는 새로운 용어를 창출하며 새로운 기술의 영역에 놀라운 속도로 다가서고 있다. 하지만 이러한 성장세와 기술적 발전에도 불구하고 기지국 안테나의 위치제원(높이, Swing 각도, Tilting 각도)의 측정 및 설치 문제가 아직까지 극복되지 못한 낙후 영역으로 존재하고 있었다. 본 고에서는 RF 무선환경 예측 프로그램 및 안테나 구축 그리고 RF운영 최적화에 필수 불가결한 필요한 안테나 위치 제원에 대한 전자동 측정 시스템 기술 구현 및 기대 효과 등에 대해 기술한다.

• Journal of the Korean Society for information Management
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• v.30 no.2
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• pp.83-99
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• 2013

The purpose of this study was to analyze ILL data in Gyeonggi province so that it could make a further analysis on current inter-regional network of book collection in ILL. In details, this study sought to analyze inter-regional network of ILL book collection among public libraries in Gyeonggi province to examine how a collection of books could be exchanged among those libraries, and analyze possible applications of task-based data in ILL. As a result, this study could verify that the further implementation of ILL across more detailed areas than current regions for the benefit of efficient ILL, if possible, would contribute to streamlining ILL practices.

• Journal of Environmental Policy
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• v.13 no.3
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• pp.3-19
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• 2014

Large-scale unband development resulted from the rapid economic growth in the Republic of Korea has brought about the habitat destruction for the native animals and plants living in forest and farmland. In order to resolve this problem, it is necessary to consider the natural ecosystem as an organism and to preserve the natural ecosystem by managing ecologically significant habitat consistently. Especially, the local governments should be able to establish regional ecologic networks in consideration of the ecological connectivity and the environmental and ecological excellence, and to reflect them into the local development plans. In regard to this, the methods of the regional ecological network establishment was presented, making use of the results including the national ecological network which assessed the ecological connectivity of the nation and the environmental and ecological assessment results of the Environmental Conservation Value Assessment Map which was designed to analyze and assess the national environmental and ecological values quantitatively. Making use of the case of Gyeongsangnam-do; the results presented that the existing national ecological network in the core region has expanded from $2,986km^2$ to $4,049km^2$ and the existing national ecological network in the buffer region has expanded from $2,940km^2$ to $3,006km^2$. Referring to the regional ecological network in the process of the local development plans could contribute to the increase in biodiversity and the integrated local environmental management including the ecosystem preservation.

• Journal of The Korea Institute of Healthcare Architecture
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• v.11 no.1
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• pp.43-54
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• 2005

This study is a second paper of the re-structuring strategies of healthcare facilities in Kwang-ju and Jeon-nam province for it's competition power in the emerging global health care market. Kwang-Ju city and Jeon-nam province have had difficulties in building a balanced healthcare system because of rapidly declining population, weakened healthcare infra-structure and geographical problems of healthcare supply by numerous islands. This paper presents the new approaching process for re-building healthcare network in the regional healthcare facilities planning. In addition, it analyzes health planning index, healthcare system, the concept of health care networking, etc. Finally, this presents the case study of regional healthcare facilities planning in Kwang-ju city and Jeon-nam Province.

• International Journal of Computer Science & Network Security
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• v.22 no.10
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• pp.298-302
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• 2022

The article considers in detail the possibilities and significance of marketing technologies for additional education programs as the most flexible and adaptive component of the educational process. Moreover, additional education programs are the most market-defined. Also at this stage, we have developed the structure of the e-mail message about ongoing additional educational programs in order to promote them, and on its basis, we have prepared an example of a letter for e-mail.informational and educational mailing using techniques to attract the attention of the addressee in order to promote additional educational programs.The content of the letter was also formed for students of the electronic course "Education Marketing", sent out in order to monitor the educational process.

• Journal of the Korean Society for information Management
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• v.21 no.3
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• pp.45-60
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• 2004

The purpose of this study is to induce the activation of public libraries in community through make use of public libraries as a plan for accomplishing regional informatization which based on regionalization and informatization. To acquire the twin goal of regional informatization and activation of public libraries, I propose a strategic plan which makes use of regional public libraries as an infrastructure of educating informatization and community-network concept. Especially those plans would cover recent background issues of super-national interest in rural welfare & development venture.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.4
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• pp.1630-1642
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• 2016

Inter-domain routing is the most critical function of the Internet. The routing system is a logical network relying on the physical infrastructure with geographical characteristics. Nature disasters or disruptive accidents such as earthquakes, cable cuts and power outages could cause regional failures which fail down geographically co-located network nodes and links, therefore, affect the resilience of inter-domain routing system. This paper presents a model for regional failures in inter-domain routing system called REFER for the first time. Based on REFER, the resilience of the inter-domain routing system could be evaluated on a finer level of the Internet, considering different routing policies of intra-domain and inter-domain routing systems. Under this model, we perform simulations on an empirical topology of the Internet with geographical characteristics to simulate a regional failure locating at a city with important IXP (Internet eXchange Point). Results indicate that the Internet is robust under a city-level regional failure. The reachability is almost the same after the failure, and the reroutings occur at the edge of the Internet, hardly affecting the core of inter-domain routing system.

• Journal of the Korean Society for Library and Information Science
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• v.49 no.3
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• pp.393-412
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• 2015

The purpose of this study is to suggest development plan of the Regional knowledge information services through the case study analysis between Korea and Japan public libraries. For this purpose, we analyzed literature related to the Regional knowledge information services, performed case study, and carried out a investigation which focuses on a public libraries webpage. According to the analysis, the development plan for the Regional knowledge information services was suggested as follow; that is user-friendly service, internal cooperation, external network cooperative strategy, visible public relations and recognition improvement. This study has aimed to prepare for the basic data which will help Korea public libraries to make better Regional knowledge information services in the future.