• Title/Summary/Keyword: 미립자

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면역형광염색법에 의한 불활화된 미립자 포자의 항원성에 관한연구

  • 임종성;김근영
    • Journal of Sericultural and Entomological Science
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    • v.15 no.2
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    • pp.69.2-69
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    • 1973
  • 미립자병을 진단하기 위한 방법으로 1972년에 면역형광염색법을 적용한바 있으나 항원취급의 위험성 때문에 병원체를 -5$^{\circ}C$, -4$0^{\circ}C$ 및 -8$0^{\circ}C$에 불화화 시킨후 항원으로 사용할 경우 그 항원 설을 검토한바 저온처리 되지 않은 항원과 동일한 항원성을 나타내어 발표코저 한다.

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An Overview of the UF/MF Membranes for Water Treatment ; Perparetion Methods and Applications

  • 김정학
    • Proceedings of the Membrane Society of Korea Conference
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    • 1997.04a
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    • pp.1-54
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    • 1997
  • MF : 0.01~submicron범위의 Pore를 가지는 막으로서 주로 입자제거 및 제균목적으로 사용 UF : MWCO 수천~백만(0.001~0.01$\mu$m)의 분리능력을 가지는 막으로서의 고분자 콜로이드에서 미립자, 균등에 이르기까지 물질을 분리, 농축, 정제하는데 사용

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Measurement of the Shear Rate-Dependent Thermal Conductivity for Suspension with Microparticles (미립자를 포함한 현탁액의 전단율에 의존적인 열전도율 측정)

  • Lee, Sung-Hyuk;Shin, Sehyun
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.22 no.8
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    • pp.1141-1151
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    • 1998
  • An effective thermal conductivity measurement for suspensions of microparticles in oil mixture is conducted in order to evaluate the shear rate-dependence of the thermal conductivity of suspensions. Measurements are made for rotating Couette flows between two concentric cylinders. The rotating outer cylinder is immersed into a constant temperature water bath while the stationary inner cylinder is subject to a uniform heat fluff. Test fluids are made to be homogeneous suspensions, in which neutrally buoyant microparticles ($d=25{\sim}300{\mu}m$) are uniformly dispersed. The present measurements show strong shear-rate dependent thermal conductivities for the suspensions, which are higher than those at zero shear rate. The shear rate dependent thermal conductivity increases with the particle size and volume concentration.4 new model for shear rate-dependent thermal conductivity of microparticle suspensions is proposed; the correlation covers from zero shear rate value to asymptotic plateau value at moderately high shear rates.