• Title/Summary/Keyword: WRIS

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Study on Establishment of Wind Map of the Korean Peninsula(II. Low-Resolution Wind Mapping and Wind Resource Information System) (한반도 바람지도 구축에 관한 연구(II. 저해상도 바람지도화 및 풍력자원 정보체계))

  • Kim, Hyun-Goo;Jang, Moon-Seok
    • New & Renewable Energy
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    • v.3 no.1 s.9
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    • pp.20-26
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    • 2007
  • A low-resolution national wind map, which is a prerequisite for setting up the national dissemination target and strategy of wind energy development, has been established by numerical wind simulation using the synoptic wind map, developed at the first stage, as an upper boundary condition. Based on the wind map, Wind Resource Information System has been composed in order to support scientific and systematic wind resource assessment and analysis.

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Cancellation of Moving Artifact in EDA Signal to Detect Drowsiness(II) (졸음 검출을 위한 EDA신호의 동잡음 제거법(II))

  • 고한우;김연호
    • Journal of Biomedical Engineering Research
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    • v.20 no.3
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    • pp.323-329
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    • 1999
  • This paper proposed a method for the cancellation of the moving artifact which was produced during the detection of drowsiness usmg electrodermal activity signal. Two types of wrist electrode were developed to overcome the defect of the steering wheel type electrode which couldn't eliminate the moving artifacts due to driver's movements. Wrist type electrode II which has been modified from electrode type I was most effective for eliminating movmg artifacts compared to wheel type electrode and wrisL type electrode 1. The decIsion criteria(if IRI$\leq$10 and 1.1$\leq$dNz) for detecting moving artifact was determined from the virtual driving experiments. An algorithm which substituted past value of Nz for the current value of Nz whenever an EDA signal satisfied the criteria was developed. The experimental resulls of virtual driving and road test showed that the proposed algorithm had been successfully removed the most of the error due to the moving artifact Therefore, the developed system which use electrode type II and the algorithm might be less influenced by moving artifacts and could measure an accurate arousal state.

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