• 제목/요약/키워드: Future Research

검색결과 23,122건 처리시간 0.043초

국내.외 U-City 논문의 연구동향 (Research Trends of U-City Theses in Korea and Oversea)

  • 김걸;천정윤;신동빈;임시영
    • 대한공간정보학회지
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    • 제19권1호
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    • pp.53-61
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    • 2011
  • 본 연구는 U-City 논문의 연구동향을 파악하여 미래도시나 U-City 연구의 향후 과제를 도출하고 발전방향을 제시하는데 목적이 있다. 이를 위해 1990년대 중반부터 2010년까지의 국내 외 U-City 및 미래도시 관련 논문을 대상으로 메타키워드를 추출하고, 시계열적 키워드 분석을 통해 국내 외 논문의 연구경향을 비교분석 하였다. 연구 결과 국내 논문과 해외 논문 모두 기술에 관련된 연구가 많았지만 국내에서는 기술과 방법론, 서비스, 계획 및 관리 분야가 초기부터 지속적으로 연구된 반면 해외 논문은 기술 및 방법론에 대한 연구가 선행된 후 모델을 통해 도시에 적용하는 연구가 이어지는 경향을 파악할 수 있었다. 또한 국내에서는 도시재생이나 도시의 공간적 스케일을 고려한 다양한 주제별 연구가 부족한 것으로 나타났다. 따라서 향후에는 U-City가 도시에 적용될 수 있는 다양한 주제의 연구가 필요하다.

AC transport current loss analysis for anti-parallel current flow in face-to-face stacks of superconducting tapes

  • Yoo, Jaeun;Han, Young-Hee;Kim, Hey-Rim;Park, Byung-Jun;Yang, Seong-Eun;Kim, Heesun;Yu, Seung-Duck;Park, Kijun
    • 한국초전도ㆍ저온공학회논문지
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    • 제16권2호
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    • pp.42-46
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    • 2014
  • In this study we investigated ac transport current losses in the face to face stack for the anti-parallel current flow, and compared the electromagnetic properties with those of the single SC tape as well as those of the same stack for the parallel current path. The gap between the SC tapes in the stack varied in order to verify the electromagnetic influence of the neighbors when current flows in opposite direction, and the model was implemented in the finite element method program by the commercial software, COMSOL Multiphysics 4.2a. Conclusively speaking, the loss was remarkably decreased for the anti-parallel current case, which is attributed the magnetic flux compensation between the SC layers due to the opposite direction of the current flows. As the gap between SC tapes was increased, the loss mitigation became less effective. Besides, the current density distribution is very flat cross the sample width for the narrower gap case, which is believed to be benefit for the power electric system. These results are all in good agreement with those predicted theoretically for an infinite bifilar stack.

우주기술 기반 벤처창업 지원 프로그램 추진현황 및 발전방향 연구 (A Study on Space-Technology Startup-Business Support Programs: Current Status and Future Direction)

  • 김일태;천용식;전병규;정회만
    • 항공우주시스템공학회지
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    • 제10권3호
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    • pp.32-38
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    • 2016
  • This paper explains space-technology startup-business support programs. MSIP (Ministry of Science, ICT and Future Planning) and KARI (Korea Aerospace Research Institute) began running startup-business support programs from 2013 according to a "space-technology industrialization plan." In addition, MSIP and KARI have been running startup academies and STAR-Exploration for future entrepreneurs and startup companies since 2015. From these programs, five startup companies were established and they are generating sales. This paper shows the results of the programs, and the program cases of the startup and venture companies are analyzed for both domestic and international audiences. The future direction of startup-business support programs that are based on space technology is also discussed.

A Future Contraction Effect in Intertemporal Choice for Durable Goods

  • Kim, Byung Kyu
    • Asia Marketing Journal
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    • 제20권2호
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    • pp.29-40
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    • 2018
  • Recent research reported that perception of future time is non-linearly scaled. That is, as objective time gets longer, subjective perception of the objective time does not grow proportionally. The non-linear time perception implies that the same future time feels shorter when it starts in the future than when it starts immediately. The authors call this as a future contraction effect. The current research tests two important implications of the effect regarding consumers' intertemporal preference for durable goods. First, consumers who contract future more will be more impatient for durable goods compared to those who contract less because the former would feel to use the same durable goods longer when it is purchased immediately. Second, consumers' impatience will be alleviated when their tendency to contract future is reduced. The authors find support for these predictions through two studies. Taken together, the current research demonstrates a property of time perception that has important ramifications for understanding consumers' intertemporal preference for durable goods.

미래사회의 고객니즈 분석을 통한 시나리오 기반의 미래 기술예측 방법론 (A Methodology for Future Technology Foresight based on Scenario through the Analysis of Future Customer Needs)

  • 김영명;김민관;이준석;한창희
    • 경영과학
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    • 제28권3호
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    • pp.143-159
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    • 2011
  • Recently, the level of uncertainty in R&D investment for an enterprise has increased due to technological development and industrial changes. Accordingly it is necessary for an enterprise to forecast the future or foresight the future technologies. But, the fact that the methodology used in predicting future technology is suitable for large project makes enterprise difficult to forecast the future technologies or trends. Thus, this study seeks for available methodology for future technology foresight from enterprise standpoint. The methodology proposed in this research is based on the scenario model, especially focused on the customer needs and future society change.