In this investigation the friction and wear performance of GUR 1020 medical grade ultra-high molecular weight polyethylene (UHMWPE) polymer under dry sliding, distilled water and egg albumen lubrication conditions were evaluated. The sliding experiments were carried out on a pin-on-disc tribometer. The contact configuration used was a polymer pin on a rotating AISI 304L stainless steel disc. We...

OBJECTIVE To classify wear and non-wear time of accelerometer data for accurately quantifying physical activity in public health or population level research. DESIGN A bi-moving-window-based approach was used to combine acceleration and skin temperature data to identify wear and non-wear time events in triaxial accelerometer data that monitor physical activity. SETTING Local residents in Sw...

In this paper, the copper-based nanocomposites with TiO2 nanoparticles were synthesized by self-propagating high-temperature synthesis (SHS) process. The effect of different amounts excess copper, in comparison stoichiometric ratio (CuO:Ti ratios 1:1, 2:1, and 3:1), on phase formation achieved samples was studied. A thermodynamical study showed that increasing copper powder reduces adiabatic te...

The resistive electrodes of RPCs utilised in several current experiments (ATLAS, CMS, ALICE, BABAR and ARGO) are made of phenolic/melaminic polymers, with room temperature resistivities ranging from 10 O cm; for high rate operation in avalanche mode, to 5 10 O cm; for streamer mode operation at low rate. The resistivity has however a strong temperature dependence, decreasing exponentially with ...