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The palygorskite nano-particles were used as lubricant additives with mass fraction of 2% and 4% respectively to prepare two kinds of lubricating oil samples. The friction and wear properties of 45# steel-steel pairs lubricated by the lubricating oil samples were tested on MMU-10G friction and wear tester. The morphological changes and self-repairing film forming condition of the worn surfaces were...
The observation of turbulence exchange in atmospheric boundary layer and aerodynamic parameters in near surface layer has been one of the important fields in environment meteorological investigation, and the same time, it always has been an key parameter in the investigation of the particle diffusion concentration. In this paper, the field campaign was carried out in a port district and main metrological...
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