• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.34 no.3
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• pp.231-242
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• 2016

As of late, air quality information has been actively gathered and investigated in order to find possible environmental risk factors that may affect the onset of cardiovascular disease. Nevertheless, existing studies are limited in the detailed analysis because they take advantage of the air quality information of the macro statistics divided into administrative districts. This paper proposes the construction of distance-based air quality dataset using a domestic hospital’s geographical location information as a reliable data gathering step for a more detailed analysis of environmental risk factors. For the construction of the dataset, air quality information was obtained by utilizing the geographical location of a hospital—in which a patient with cardiovascular disease had been admitted—and then matching the hospital with a meteorological and air pollution station in its vicinity. An air quality acquisition system based on GMap.net was devised for the purpose of data gathering and visualization. The reliability of the experiment was confirmed by evaluating the matching rate and error of air quality values between the acquired dataset with existing area-based air quality datasets from matched distances. Therefore, this dataset, which considers geographical information, can be utilized in multidisciplinary research for the discovery of environmental risk factors that can affect not only cardiovascular diseases but also potentially other epidemic diseases.

• Journal of Ginseng Research
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• v.25 no.4
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• pp.171-177
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• 2001

Lately, the Korean ginseng was confronted with the sale crisis in world markets from the various circumstance. One of important difficulties is overspreading of Korean ginseng imitative in foreign markets. In Korean markets also, chinese ginseng was imported illegally and manufactured as Korean ginseng, which was resulted inthe damage of Korean ginseng brand. The most essential problem is misunderstanding of Korean ginseng 。 s information in the foreigner. In this paper, we developed a genuine guarantee system to identify the true Korean ginseng through internet and geographic cording system of Korean ginseng products. This system can be applied to the enforcement of Korean ginseng sale to international markets.

• Nuclear industry
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• v.38 no.2
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• pp.13-27
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• 2018

재생에너지의 활용 가능성이 제한적이고 인구 밀도가 높은 대한민국의 현실을 놓고 볼 때, 원자력은 온실가스 배출 및 공해를 줄이면서도 충분한 전력을 생산하여 공급해줄 수 있는 가장 신뢰할만한 발전 수단이다. 그러나 한국 정부는 원전과 석탄발전소를 단계적으로 폐쇄하고 이를 대체하기 위해서 다양한 재생에너지를 늘리겠다는 정책을 확고하게 고수하고 있다. 그렇지만 에너지 생산 수단을 전환하겠다는 이 정책의 주요 목표는 액화천연가스(LNG) 발전을 대체 수단으로 삼고 있다. 그 이유는 다른 재생에너지들의 대규모 생산 수단을 개발하는 데는 기술적이고 경제적인 난제들이 걸림돌이 되기 때문이다. 그러므로 미래의 에너지 정책을 결정하기에 앞서, 에너지 전환 정책의 구체적인 사항들을 확실한 근거에 기반해서 검토한 후 계획을 수립하는 것이 매우 중요한 일이다. 이 문제에 관해서 우리는 다음과 같은 점들을 검토하였다 (1) 한국이 처해 있는 기술적 경제적인 제약을 전제로 한 재생에너지원의 개발에 대한 정부의 역할, (2) 가스 발전으로 인해 발생할 수 있는 환경적이며 경제적인 문제점들, (3) 원전정책을 지속함으로써 얻을 수 있는 이점과 원전 유지에 대한 장애물. 위와 같은 세 가지 사항을 검토한 결과, 한국이 지니고 있는 지리적 경제적인 제약과 함께 탄소 배출로 인해 발생하는 비용까지 효과적으로 줄여야 한다는 점 등을 감안할 때 천연가스 발전으로 집중하겠다는 한국의 미래 에너지 정책은 친환경적이지 못함은 물론 경제적이지도 않기 때문에 적정한 비율의 재생에너지를 포함하는 원전 정책을 지속하는 것만이 현실적인 성공 가능성이 가장 높다고 보는 것이 우리의 결론이다.

• Journal of the Society of Disaster Information
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• v.13 no.1
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• pp.6-14
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• 2017

The opportunity provided for design method and strategy of sustainable campus on the waterfront, is the purpose of this paper. Waterfront campus is an important issue as it seeks to revive the sustainability and to renew the facilities. This paper reviews an assessment of its success for waterfront campus in 10 principles such as waterfront, water and safety, climate & energy, green building and transportation, green labs and recycling, health and food, social economic sustainability, fund, human, smart, also concludes with the establishment of space making for the waterfront campus for future educational facilities on the waterfront; implementation of waterfront campus maserplan; building sustainable campus in adaptation to climate change; creative and resilient cooperation.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1323-1327
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• 2006

일반적으로 화력발전소는 원활한 원료 및 냉각수의 공급과 환경적인 요인으로 인해 내륙보다는 해안에 위치하고 있다. 발전소의 안정성을 확보하기 위해서는 고열의 발전기를 냉각하는 냉각설비들이 반드시 필요하며 이를 위해 취수로를 통한 냉각수의 원활한 공급이 이루어져야 한다. 이러한 냉각수 공급은 대용량 펌프에 의해 이루어지며, 취수로 구조물의 형상 및 냉각수의 흐름조건에 따라 성능과 수명이 좌우된다. 특히 해안에 위치하는 지리적 여건상 직접취수가 많으며 이러한 경우 유사가 취수로에 유입되어 펌프 흡입 시 균열과 임펠러 마모 등을 유발시켜 펌프의 안전에 악영향을 미치게 된다. 따라서 취수로에 유사의 퇴적을 유도하는 침사지를 설계하게 되며 Hydraulic Institute Standards(1998)에서는 허용설계유속을 0.2 m/s 이하로 정하고 있다. B 발전소는 직경 3 m의 대형 취수관로 3개를 통해 매우 빠른 유속으로 취수로에 유입되는 냉각수 계통 구조물을 가지고 있어 침사지 내 유속이 허용기준을 초과하였다. 본 연구에서는 침사지내 유속을 만족시키기 위해 다양한 에너지 소산 구조물 설계방안을 제시하였다. 각 설계방안에 따른 흐름 특성 및 유속 분포를 파악하고 common bay 내에서의 난류특성을 분석하여 비교.검토하였다. 수리모형실험 결과를 통해 각각의 설계방안에 따른 침사지의 효율을 평가하였으며 최적의 에너지 소산 구조물에 대한 설계방안을 제안하였다.

• Journal of Advanced Navigation Technology
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• v.12 no.5
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• pp.401-411
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• 2008

GeoWeb services deliver various thematic information related to geographic positions over the internet GeoWeb services needs to provide efficient accessibilities to geographic contents by interaction with users through the map graphic elements. SVG, which is an application of XML, gives rich DOM I/F for interaction with graphic objects. In this study map servers and client viewers are implemented to serve SVG map available on the fixed mobile internet computing environments. Map servers are made compliant with OGC WMS and WFS specifications and SVG map viewers are developed for both Windows PC and WinCE PDA.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.1
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• pp.72-80
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• 2016

Recently, IM(Instant Messenger) of KakaoTalk is being used on smart devices such as smartphones. Because IM service can carry user and/or suspector's various information including life style, geographical position, psychology and crime history, forensic analysis on IM service is desirable. But, forensic analysis for KakaoTalk is not well studied yet. This paper studies a proper forensic method for KakaoTalks, finds artifacts location, reconstruct the list of contacts and the chronology of the messages that have been exchanged by users. Proposed methodology and analyzed information can provide a basic platform for forensic tool.

• Journal of Satellite, Information and Communications
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• v.9 no.1
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• pp.45-50
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• 2014

In this paper, broadband wireless smart city network coverage was implemented targeting a city (Wonju) using the wireless mesh network. Through this, we could provide wireless network that can easily add network and be repaired easily and have high economic effect. In order to implement broadband wireless smart city network coverage, wireless mesh network has been designed through pre-survey of the region and appropriate selecting of equipment. In addition, the designed network is examined, evaluated and compared with existing network though simulation. The aim of this paper is to prove high cost saving effect of wireless mesh network and its superior performance and to suggest future oriented integrated network of Green IT though research.

• Journal of the Korean Society of Hazard Mitigation
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• v.1 no.2 s.2
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• pp.85-92
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• 2001

The flood damage due to heavy rainfall caused by not only geographical factor, but also social factors. In this paper we derived the flooding potential factors, and analyzed resident's understanding of flooding through the Tokai disaster of Japan, occurred in september 2000. Furthermore, the urban rate obtained by the data comparison between 1975 and 1985 using GIS is evaluated to estimate the effect of rainfall-runoff mechanism due to the urbanization. These efforts could be served as the information of flood damage for the communication with the residents and it would be helped the minimization of flood damage.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.6
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• pp.2713-2719
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• 2012

According to increasing of various location-based services, distributed data stream processing techniques have been widely studied to provide high scalability and availability. In previous researches, in order to balance the load of distributed nodes, the geographic characteristics of spatial data stream are not considered. For this reason, distributed operations for adjacent spatial regions increases the overall system load. We propose a operation allocation scheme considering the characteristics of spatial operations to effectively processing spatial data stream in distributed computing environments. The proposed method presents the efficient share maximizing approach that preferentially distributes spatial operations sharing the common query regions to the same node in order to separate the adjacent spatial operations on overlapped regions.