• Title/Summary/Keyword: Huh-7

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High-Velocity Impact Behavior Characteristics of Aluminum 6061 (알루미늄 6061의 고속 충격 거동 특성 연구)

  • Byun, Seon-Woo;Ahn, Sang-Hyeon;Baek, Jun-Woo;Lee, Soo-Yong;Roh, Jin-Ho;Jung, Il-Young
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.50 no.7
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    • pp.465-470
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    • 2022
  • This paper studied the high-velocity impact behavior characteristics of metal materials by crosschecking the high-velocity impact analysis with the high-velocity impact experiment results of aluminul 6061. The coefficients of the Huh-Kang material model and the Johnson-Cook fracture model were calculated through quasi-static using MTS-810 and dynamic experimenting using the Hopkinson bar equipment for high-velocity impact analysis. The penetration velocity and shape were predicted through high-velocity impact analysis using the LS-DYNA. The resultes were compared with the experiment results using a high-velocit experiment equipment. It is intended to be used the containment evaluation research for aircraft gas turbine engine blade.

Intestinal parasitic infections of Korean Army soldiers in Whachon-gun, Korea (강원도 화천군 주둔 한 군부대 장병의 장내 기생충 감염률)

  • Sun Huh;Seung-Chul Huh
    • Parasites, Hosts and Diseases
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    • v.31 no.3
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    • pp.293-294
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    • 1993
  • We examined stools of 113 soldiers of Korean Army in Whachon-gun, Korea in 1992. The eggs of Clonorchis sinetris (71113) and Metqsonimw sp. (31113), and cysts of Ginrdia lomblic (41113) were detected. No eggs of soil-transmitted helminths were found. Most of the CLonorchis-infected soldiers (6171 were recruited from Kyongsangnam-do.

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