In anticipation of a new heavy-duty engine oil category due out in 2016, which will feature a lower-viscosity sub-category for improved fuel economy in newer engines, Shell has been running a fleet ...
The effect of ultrasound (US) on the shear viscosity of water-soluble polymers, polyvinyl alcohol, polyethylene glycol and polyacrylic acid, was studied in aqueous solutions with US exposure of 23, 43 ...
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