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pro vyhledávání: '"Dawood O. Altaify"'
Autor:
Dawood O. Altaify
Publikováno v:
Journal of University of Babylon, Vol 25, Iss 2, Pp 798-808 (2017)
In this work, an improvement of falling ball viscometer was presented using laser beam. Several parameters such as viscosity, shear stress, shear rate, Reynolds number and drag coefficient were calculated for a sample of unused engine oil. In the oth