• Title/Summary/Keyword: 심도

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HIV감염인에게 피부질환은 심하게 나타나

  • 이꽃실
    • RED RIBBON
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    • s.54
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    • pp.8-9
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    • 2003
  • HIV감염인에게 나타나는 피부질환은 비감염인에 비해 비전형적이고 심한 양상을 보인다. 피부질환이 발생하지 않도록 면역기능의 저하를 가능한 막아야 하며, 전문가의 정기적인 진찰이 필요하다.

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특집

  • 정수환
    • KOREAN POULTRY JOURNAL
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    • v.6 no.7 s.57
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    • pp.23-27
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    • 1974
  • 특히 양계산물가격은 그 가격 변동이 심하다. 유통기구가 복잡할 뿐 아니라 가격형성에도 제반문제들이 얽히고 설켜 가격의 변동폭이 너무나 심해 양계가가 곤란을 겪고 있다. 이 얽히고 설킨 장애물을 제거할 방법은 과연 없을까?

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Estimation of Snow Damage and Proposal of Snow Damage Threshold based on Historical Disaster Data (재난통계를 활용한 대설피해 예측 및 대설 피해 적설심 기준 결정 방안)

  • Oh, YeoungRok;Chung, Gunhui
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.37 no.2
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    • pp.325-331
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    • 2017
  • Due to the climate change, natural disaster has been occurred more frequently and the number of snow disasters has been also increased. Therefore, many researches have been conducted to predict the amount of snow damages and to reduce snow damages. In this study, snow damages over last 21 years on the Natural Disaster Report were analyzed. As a result, Chungcheong-do, Jeolla-do, and Gangwon-do have the highest number of snow disasters. The multiple linear regression models were developed using the snow damage data of these three provinces. Daily fresh snow depth, daily maximum, minimum, and average temperatures, and relative humidity were considered as possible inputs for climate factors. Inputs for socio-economic factors were regional area, greenhouse area, farming population, and farming population over 60. Different regression models were developed based on the daily maximum snow depth. As results, the model efficiency considering all damage (including low snow depth) data was very low, however, the model only using the high snow depth (more than 25 cm) has more than 70% of fitness. It is because that, when the snow depth is high, the snow damage is mostly caused by the snow load itself. It is suggested that the 25 cm of snow depth could be used as the snow damage threshold based on this analysis.