• 제목/요약/키워드: Hong Do Kim

검색결과 2,889건 처리시간 0.094초

시흥·안산 산단 및 영향지역의 휘발성유기화합물질(VOCs) 분포 특성 (Distribution Characteristics of Volatile Organic Compounds (VOCs) in an Industrial Complex and in Affected Areas in Siheung and Ansan)

  • 김동기;우정식;한현수;김용준;김웅수;홍순모;김종수;윤미혜
    • 한국환경보건학회지
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    • 제46권3호
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    • pp.256-266
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    • 2020
  • Objectives: The concentrations and distribution characteristics of volatile organic compounds (VOCs) in an industrial complex and surrouding affected residential areas were investigated in an effort to support the efficient management of VOCs. Methods: The atmospheric concentrations of VOCs were analyzed at sites around the Sihwa-Banwol complex located in the cities of Siheung and Ansan and in the surrounding affected residential areas. The appearance of VOCs and the characteristics of their temporal and spatial distribution were evaluated. Results: The total VOC concentrations in the industrial complex were detected at 1.9-2.3 times higher than in the affected areas, but the daily VOCs distributions showed similar patterns in both sites. In particular, it was confirmed that the composition ratio of the VOCs and concentration fluctuations over time in the affected areas are similar to those in the adjacent industrial complex. VOC levels in the affected areas were higher than in residential areas in cities without an industrial complex. Conclusions: VOCs in residential areas near an industrial complex were highly distributed due to the influence of continuous pollutant emissions from the industrial complex. Therefore, the management of VOCs in the atmosphere of the affected area is important for identifying and managing the sources of VOCs detected in high concentrations in the industrial complex.

IYA2009 : 지구촌 시민을 위한 축제, 국민 모두의 축제

  • 문홍규;이경숙;김지혜;현성경;채종철;이희원;이명현;이경숙;이서구;양홍진;이동주;홍대길;이강환;김천휘;민영철;강영운;양종만;박석재;문종기;김지혜;이용정;안해도;신정선
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2009년도 한국우주과학회보 제18권1호
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    • pp.27.1-27.1
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    • 2009
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회전된 지문에 강인한 지문 인식 시스템에 관한 연구 (Rotation Robust for Fingerprint Recognition System)

  • 김원중;조성원
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
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    • pp.542-545
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    • 2002
  • Position transfer and turning rotation between fingerprint and inputted fingerprint that is registered in automatic fingerprint recognition system are one of main cause that mistaken acknowledgment expression happens. Therefore, in this research, conformity algorithm development that do it so that is unrelated in position translation and rotation of fingerprint at feature point conformity step to secure higher correct recognition rate.

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