• Title/Summary/Keyword: 공간연계

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국내 실내공간정보 추진 동향

  • Choe, Hyeon-Sang
    • Information and Communications Magazine
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    • v.34 no.4
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    • pp.39-46
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    • 2017
  • 본고에서는 실내공간정보와 관련하여 국토교통부 및 서울시 등 공공분야에서 추진한 실내공간정보 구축 현황에 대해 살펴보고, 실내공간정보 구축기술의 현주소와 향후 실내외를 연결한 통합서비스 구현에 필요한 실내외 공간정보 통합플랫폼 개발 사례 및 실내외 연계기준점 설치 방안에 대해 살펴보고자 한다.

Design of a State Feedback Controller for a Grid-connected Inverter with LCL Filter (LCL 필터를 사용하는 계통연계 인버터의 상태 궤환 제어기 설계)

  • Yun, Seung-Jin;Kim, Kyeong-Hwa
    • Proceedings of the KIPE Conference
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    • 2017.07a
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    • pp.272-273
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    • 2017
  • 계통연계 인버터 시스템은 기존 L 필터보다 낮은 THD를 가지며 저가격의 작은 부피로도 효율적으로 고조파를 저감할 수 있는 LCL 필터를 많이 사용하고 있다. LCL 필터를 가지는 계통연계 인버터의 제어를 위해서는 PI 제어기가 사용되고 있으며 일반적으로 다수의 PI 제어기가 사용되고 있어 많은 제어기 이득을 동시에 설계해야 하는 한계를 지닌다. 본 논문에서는 LCL 필터를 갖는 3상 계통연계 인버터의 상태공간 모델을 이용하여 상태공간에서의 상태 궤환 제어기의 설계기법을 제시한다. 상태 궤환 제어기를 적용함으로서 다수의 PI 제어기 이득을 설계하는 번거로움을 줄일 수 있으며 체계적인 과정으로 제어기가 설계될 수 있다. 제안된 기법의 타당성과 성능이 PSIM 시뮬레이션을 통하여 입증된다.

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A Study on the Implementation of Editing and Viewing IndoorGML Data based on Indoor Space (실내공간 기반 IndoorGML 데이터 편집 및 가시화 구현에 관한 연구)

  • Hwang, Jung-Rae;Choi, Jin-Won;Choi, Hyun-Sang;Hong, Chang-Hee
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.11a
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    • pp.1180-1182
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    • 2012
  • 최근 시설물이 대형화 및 복잡화 되어 가면서 실외 공간뿐만 아니라 실내공간에 대한 관심이 국내외적으로 높아지고 있다. 이에 실내공간을 3차원으로 표현하고, 실외와 실내를 연계 및 통합하려는 연구가 국내외적으로 시도되고 있다. 본 연구에서는 실외와 실내의 연계 및 통합을 위한 전 단계의 연구로 현재 국제 표준화 작업이 진행 중인 실내공간을 표현하는 IndoorGML 데이터모델을 대상으로 그 데이터를 편집하고 가시화하는 도구를 구현하였다.

Activation of Limbic Area due to Oxygen Administration during Visuospatial Task (공간 과제 수행 시 고농도 산소 공급에 의한 변연계 활성화에 관한 연구)

  • Choi, Mi-Hyun;Lee, Su-Jeong;Yang, Jae-Woong;Kim, Ji-Hye;Choi, Jin-Seung;Tack, Gye-Rae;Chung, Soon-Cheol;Kim, Hyun-Jun
    • Science of Emotion and Sensibility
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    • v.12 no.4
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    • pp.443-450
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    • 2009
  • The purpose of this study is to observe activation of limbic system during performing visuospatial tasks by 21% and 30% oxygen administration. Eight right handed male college students were selected as the subjects for this study. A visuospatial task was presented while brain images were scanned by a 3T fMRI system. The experiment consisted of two runs: one was a visuospatial task under normal air(21% oxygen) condition and the other under hyperoxic air(30% oxygen) condition. The neural activations were observed at the limbic system which is seperated 8 regions such as cingulate gyrus, thalamus, limbic lobe, hypothalamus, hippocampus, parahippocampa gyrus, amygdala, and mammiilary body. By two oxygen levels, activation areas of limbic system are almost identical. Increased neural activations were observed in the cingulate gyrus and thalamus with 30% oxygen administration compared to 21% oxygen. During 30% oxygen administration, improvement of visuospatial task performance has a relation to increase of neural activation of subcortical structures such as thalamus and cingulate gyrus as well as cerebral cortex.

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A Study on Integration Strategies for e-Government and GIS in Korea (전자정부 구현을 위한 GIS 연계방안 연구)

  • Kim Eun-Hyung
    • Spatial Information Research
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    • v.13 no.3 s.34
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    • pp.261-281
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    • 2005
  • Geospatial information and technologies are considered as a fundamental element in the foreign advanced e-governments. Integration of e-Government and GIS technology should be an important task for the Korean e-government. Purpose of this study is to propose integration strategies for Korean e-Government and National GIS projects in a GIS perspective. For the successful integration this study analyzes the evolutional stages of e-Government and changes of GIS paradigms in a more comprehensive way. This study hypothesizes that integration of e-Government and GIS can create greater synergic effects fur the improved citizen services and increased efficiency of governmental administration. To verify the hypothesis, cases of advanced e-Governments in the foreign countries and progress of the Korean e-Government projects are compared and integration strategies are suggested. The strategies are as follows: expanded integration of geospatial and text-based information in e-Government for the greater synergic effects, implementation of GIS portal for e-Government, and development of a variety of geospatial information services for easy access and public participation. Most importantly, innovation of the institutional environments can be considered as an essential requirement to enhance and broaden interdepartmental partnerships. To realize the integration strategies suggested, this study presented the future projects under the following 5 topics: 'service', 'integration of information', 'technology', 'organization' and 'infrastructure for integration'. It is expected that results of this study can contribute to the bigger picture of Korean e-Government and the third National GIS master plan in 2006.

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Enterprise Architecture for Linking Administrative Affairs and Spatial Information (행정업무에 공간정보 연계활용을 위한 엔터프라이즈 아키텍처)

  • Youn, Jun-Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.16 no.3
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    • pp.95-103
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    • 2008
  • Spatial information is essential for administrative affairs. So many Administrative Information System(AIS)s and Geographic Information System(GIS)s have been implemented at local government to support administrative affairs. AIS deals with document based information, and is not designed to use map information. Also, various information is not matched, because address systems for AIS and coordinate system for GIS are different. Therefore, existing AIS and GIS are not suitable for linking administrative affairs and spatial information. This paper deals with the enterprise architecture for local government to support the linkage of administrative affairs and spatial information. Enterprise architecture in this paper is composed of business architecture, data architecture, application architecture, and technical architecture. Each architecture is designed up to planner's and owner's level. Detail structures of each architecture follow the practical guidance for applying e-government enterprise architecture in Korea. Business and data architecture are applied to transportation administrative affairs.

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A Case Study on Waterfront Revitalization Project for the Downtown Regeneration in Harbor City (항만도시 도심재생을 위한 수변공간재활성화사업 사례연구)

  • Choi, Kang-Rim
    • Journal of the Korea Convergence Society
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    • v.10 no.11
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    • pp.309-320
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    • 2019
  • Waterfront revitalization is an important issue for the downtown regeneration of harbor cities. The purpose of this study was to derive implications for waterfront revitalization project to regenerate the downtown of harbor city. Theoretical considerations and case studies were conducted on Darling Harbour in Sydney and Rose Kennedy Greenway in Boston. The results of the case analysis are as follows. (1) The land use, buildings and facilities for leisure and amusement that provide public access and various experiences were constructed and historical heritage was actively utilized. (2) The open spaces in various sizes and characteristics including waterfront walkways, parks, plazas and green spaces were created. (3) The connection between downtown and waterfront was improved in terms of pedestrian space and townscape in order to create synergistic effect between downtown and waterfront.