نتایج جستجو برای: lubricity
تعداد نتایج: 325 فیلتر نتایج به سال:
INTRODUCTION Ureteral access sheaths (UAS) facilitate flexible ureteroscopy in the treatment of urolithiasis. The physical properties of UAS vary by manufacturer and model. We compared three new UAS: Glideway (GW, Terumo, 11/13Fr, 12/14Fr), Pathway (PW, Terumo 12/14F) and Navigator HD (NHD, Boston Scientific, 11/13Fr, 12/14Fr) in the domains of safety characteristics, positioning characteristic...
Finding an alternate solution for supplanting the existing conventional lubricant in machining is a challenge. This work narrows search down to use of nano-cutting fluids, as they exhibit excellent properties such high thermal conductivity and good lubricity. A technical analysis performance hybrid fluids end milling AA6082 aluminium alloy constrained condition presented. Alumina carbon nanotub...
The chemical inertness, high melting point, and intrinsic lubricity of polytetrafluoroethylene PTFE have been used to develop solid lubricating parts for operation in extreme environments, from frying pans to satellites. The atomic-level mechanisms associated with friction and wear at PTFE surfaces are elucidated here by systematic investigations of the frictional anisotropy measured with respe...
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