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Selection of Promising Wind Farm Sites and Prediction of Annual Energy Production of a Wind Turbine for Eight Islands in Korea (국내 8개 도서지역 대상 풍력발전 유망후보지 선정 및 발전량 예측)

  • Kim, Chan-Jong;Song, Yuan;Paek, Insu
    • Journal of the Korean Solar Energy Society
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    • v.37 no.6
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    • pp.13-24
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    • 2017
  • Finding promising wind farm sites in islands of Korea is performed in this study. Total ten islands that have been measuring wind speed and direction using automatic weather stations for at least ten years were subjects of this study. Conditions for finding suitable wind farm sites including wind resource and various exclusion factors were applied and two islands that were found not to be suitable for wind farms were excluded. Micositing of a single wind turbine for the remaining eight islands was performed to estimate the annual energy production and the capacity factor.. Based on the simulation results, the wind farm sites selected within the eight islands were found to be suitable for wind power. The capacity factors were varied between 22.3% and 33.0% for a 100 kW wind turbine having a hub height of 30 m.

The Development of the Predict Model for Solar Power Generation based on Current Temperature Data in Restricted Circumstances (제한적인 환경에서 현재 기온 데이터에 기반한 태양광 발전 예측 모델 개발)

  • Lee, Hyunjin
    • Journal of Digital Contents Society
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    • v.17 no.3
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    • pp.157-164
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    • 2016
  • Solar power generation influenced by the weather. Using the weather forecast information, it is possible to predict the short-term solar power generation in the future. However, in limited circumstances such as islands or mountains, it can not be use weather forecast information by the disconnection of the network, it is impossible to use solar power generation prediction model using weather forecast. Therefore, in this paper, we propose a system that can predict the short-term solar power generation by using the information that can be collected by the system itself. We developed a short-term prediction model using the prior information of temperature and power generation amount to improve the accuracy of the prediction. We showed the usefulness of proposed prediction model by applying to actual solar power generation data.

Development of the Pilot Island Information System for Efficient Management and Utilization of Islands (국가 도서의 효율적 관리 및 활용을 위한 도서정보 실험시스템 개발)

  • Choi, Yong-Bok;Oh, Seung
    • Spatial Information Research
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    • v.20 no.3
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    • pp.51-56
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    • 2012
  • Many countries have interested in islands with their values in nature such as future sustainable resource and new expansion of marine territory. As territorial and cultural assets, these islands have been the source of our national competitiveness and, then, Korean government has initiated island management policy that provides a basis for the development and protection of islands. Consequently, spatial data and database for resource management have been required. In this sense, the purpose of this paper is to investigate the condition and status of various natural resources in Jeju islands. Jeju has 63 islands including 55 uninhabited islands. Then, an Island Information System(IIS) based on geographical information system(GIS) has been proposed. This ISS will provide not only a measure for effective resource management but also systematic services for releasing useful resource information.

A Study of Securing Financial Support for New York Public Library (뉴욕공공도서관의 재정확보에 관한 연구)

  • Kim, Hyo-Suk
    • Proceedings of the Korean Society for Information Management Conference
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    • 2004.08a
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    • pp.133-140
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    • 2004
  • 뉴욕공공도서관(The New York Public Library)은 전문분야로 특화된 대학원 수준의 4개의 연구도서관과 85개의 지역분관을 가리키는 복합관의 총칭이다. 뉴욕시는 인구 800만의 5개의 행정구역으로 이루어지는데, 뉴욕공공도서관은 맨해튼, 브롱크스, 스태튼섬의 3개지구 330만명을 서비스 대상으로 하고, 나머지 2개 지구를 브루클린공공도서관, 퀸즈공공도서관이 관할한다. 연간 예산은 2억8천만달러에 달하며, 2003년의 통계에 따르면 방문이용자가 150만명, 홈페이지 이용자도 1,000만명에 이른다고 한다. 놀라운 것은 운영이나 규모면에서 세계 제일로 손꼽히면서도 공립(公立)이 아니라 비영리민간단체(NPO)가 운영하는 공공(公共) 도서관이라는 것이다. 뉴욕공공도서관은 설립부터 독지가들이 기부 등을 통해 도서관 활동에 깊이 관여하면서 행정과의 독특한 협력관계를 발전시켜왔다. 이러한 전통에 의거한 퍼블릭 프라이빗 파트너십(Public Private Partnership)은 뉴욕공공도서관의 핵심으로 보다 풍부한 서비스의 제공을 가능하게 하였다. 이에 본 연구는 우리나라와 달리 예산확보를 위한 경비가 일정부분 상정되고 있는 뉴욕공공도서관의 자금조달 비즈니스 모델에 대한분석에 중점을 두었다.

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The Study of the Growth and the Photoluminescence of InAs/InP Quantum Dot by Chemical Beam Epitaxy (CBE를 이용한 InAs/InP 양자점의 성장 및 PL 연구)

  • Yang, Ji-Sang;Woo, Duk-Ha;Lee, Seok;Kim, Sun-Ho;Kim, Dae-Sik
    • Proceedings of the Optical Society of Korea Conference
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    • 2000.02a
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    • pp.266-267
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    • 2000
  • 최근에 Stranski-Krastanov 방법을 이용한 나노미터 크기의 변형된 섬 구조 제작에 많은 관심을 보이고있다.$^{(1)}$ 이는 결함이 적고, 균일한 저차원의 반도체 구조가 광전자 장치에 지대한 발전을 가져올 것으로 기대되기 때문이다. 예를들어 양자 선이나 양자 점은 반도체 레이저의 이득 영역으로 좋은 특성을 가지는 것으로 알려졌다.$^{(2)}$ 이 논문에서 우리는 Chemical Beam Epitaxy (CBE)를 이용하여 InP 기판 위에 격자상수가 맞지 않는 InAs 층의 성장과 Photoluminescence (PL) 측정을 통해 이 구조의 특성에 대해서 알아보고자 한다. (중략)

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대북 경수로사업 추진 경위와 의의

  • 이동진;정환삼
    • Proceedings of the Korean Nuclear Society Conference
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    • 1996.05d
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    • pp.494-501
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    • 1996
  • 북핵문제 해결의 대안으로 제기된 대북경수로제공 논의에서 우여곡절 끝에 '한국형경수로 제공'과 '한국의 중심적 역할'이 결정되고 이를 주관할 국제 컨소시엄인 한반도에너지개발기구(KEDO)가 구성되어 북한과는 공급협정을, 한국전력공사와는 주계약자지정합의서를 체결함으로써 상업계약 체결에 관계없이 일단 사업 착수를 위한 큰 틀이 갖추어지게 되었다. 이에 따라 울진 3, 4호기를 참조발전소로 한 경수로 2기가 우리의 주도로 2003년을 목표 시한으로 함남 신포 인근에 건설되게 되었다. 부지조사도 대체로 마무리되어, 곧 환경영향평가 작업이 있을 예정이다. 약 45억 달러가 소요될 건설 비용은 한국이 대부분을, 일본이 상당부분을, 미국이 일부를 맡기로 대체로 합의되어 있으나, 최종 확정에 앞서 논란의 소지가 남아 있으며, 사업 참여 지분을 두고도 KEDO 참여국 간에 갈등이 예상된다. 이 사업의 의의는 크게는 어려움을 겪고 있는 북한의 에너지난 타개를 지원함으로써 그들을 개방으로 이끌어 남북간 화해와 세계평화를 조장하며, 작게는 우리의 원자력산업이 세계시장으로 뻗어 나가기 위한 계기를 마련하는데 있다. 이를 통해 포지티브 섬으로서의 통일의 초석을 마련한다는 민족적 대의에 충실하고 국가이익에 좌우되는 신국제질서의 생리를 직시함으로써 남북문제에 있어서는 대승적 자세로, 국가간 경비분담과 지분배분 협상에는 자주적 자세로 임함으로써 모처럼 원자력계에 주어진 막중한 소임을 차질없이 완수할 수 있도록 해야 할 것이다.

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A Study on a Hybrid Energy System to Reduce CO2 Emission In Mavuva Island, Fiji (마부바섬의 이산화탄소 감축을 위한 복합 에너지 시스템에 대한 연구)

  • Jung, Tae Yong;Hyun, Jung Hee;Lee, Seul;Huh, Minkyung
    • Journal of Environmental Impact Assessment
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    • v.26 no.4
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    • pp.217-226
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    • 2017
  • Although the effects of climate change are universal, Small Island Developing States (SIDS) are considered to be most vulnerable. SIDS heavily rely on imported oil and fossil fuels for electricity generation and transportation, which makes them economically vulnerable and exposed to fluctuating oil price. Among the reasons SIDS highly depend on diesel fuel is due to the dispersed population living in remote islands which means, providing electricity through on on-grid system is difficult. Fiji as one of the SIDS, has actively promoted renewable sourced energy through a national plan to mitigate the impacts of climate change. In order to determine how feasible implementing a renewable energy (RE) system will be in Fiji, this study chose a remote island called Mavuva Island to test application of a hybrid RE system using HOMER. A combination of energy storage system (ESS), solar photovoltaic (PV) and diesel generator turns out to be the most cost effective and optimal configuration, resulting in effective greenhouse gas reduction for the given region.

The Urban Regeneration Project of Abu Dhabi and the Building of Guggenheim: Issues and Tasks (아부다비의 도시재생 프로젝트와 구겐하임 분관 건립 계획: 쟁점과 과제)

  • Park, Sojung;Kwon, Cheeyun
    • Korean Association of Arts Management
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    • no.49
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    • pp.117-147
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    • 2019
  • Many cities are utilizing their cultural capital as a means for urban regeneration and tourist attraction. Museums form an essential component in these culture-based urban regeneration efforts, the Guggenheim Bilbao being a frequently cited example of success. The United Arab Emirates (UAE) has benchmarked the Bilbao case study as they were looking for alternative income-generating industries in the post-oil era, embarking on a city-building project on the Saadiyat Island where resorts and cultural institutions of massive scale are being constructed. The Louvre Abu Dhabi and the Guggenheim Abu Dhabi were pursued under this scheme, aiming at attracting tourism and elevating their status in the region as a cultural capital. This study examines the political, economic, and cultural background behind the Saadiyat city project and the pending issues behind the construction of the Guggenheim Abu Dhabi. This study purports that besides funding and an ambitious plan, social and cultural developments in the region over time will be essential for a successful localization of a Western brand museum in the region.

The Strategy for the Position and Development of the Land Logistics System of the Korean Peninsula (한반도의 동북아 육상물류체계 위상과 발전 전략에 관한 연구)

  • Kim, Hong-Seop
    • Journal of Korea Port Economic Association
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    • v.32 no.2
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    • pp.1-24
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    • 2016
  • Northeast Asia is changing rapidly, including becoming an increasingly important part of the world economy. Various logistical systems and networks are being established in this area, including South and North Korea, China, Japan, Russia, and Mongolia. Thus, a new systematic logistical network and development strategy is required. The division of the Korean peninsula has for a long time made the region ineffective in terms of land logistics. South Korea's connection to Eurasia is blocked by North Korea, which means it is essentially treated as an island. Furthermore, South Korea does not have an efficient logistics system or effective vision and strategy. Northeast Asia has the potential to be one of the largest economic communities in the world, similar to the EU and North America. Thus, a united Korea can play an important role as the land bridge of Northeast Asia and the logistical hub of the region. This study reviews the logistical position, tasks, and problems of the Korean peninsula and suggests a desirable development strategy and vision. Specifically, after examining the conditions for a land logistical system, focusing on railways, this study proposes several future-oriented development strategies and tactics that will position the peninsula as a logistical hub in Northeast Asia. We anticipate that this study will serve as the basis for future research that will investigate the topics presented here in more detail.

Optimal Location Analysis in terms of Efficiency for Solar Energy Facilities (효율성 측면에서 태양광 에너지 시설 최적입지에 관한 연구)

  • Yang, Il-Seung;An, Hyung-Soon
    • The Journal of the Korea Contents Association
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    • v.18 no.7
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    • pp.656-664
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    • 2018
  • The following study was conducted to determine the optimal location in terms of efficiency for solar energy facilities, and to propose a policy implications for the orientation of the installments. 92 cases in Jeollanam-do Province were selected. A regression analysis was performed between the average electricity generation time as the dependent variable, and the facility, weather and site conditions as the independent variables. As a result, 5 variables were deemed significant. Larger site areas, closer proximity to rivers, islands, oceans, etc., least south-oriented, higher average wind speed, and facilities in agricultural land use and natural environment conservation land use had the highest efficiency. This study minimized the possibility of secure databases and errors following facility types, and was limited in the number of sites studied, since this was only conducted in Jeollanam-do Province. Nevertheless, these conclusions still offer important policy implications for determining the most optimal location for solar energy facilities.