Results 11 to 20 of about 1,784,370 (361)

On the Distinctive Hardness, Anti-Corrosion Properties and Mechanisms of Flame-Deposited Carbon Coating with a Hierarchical Structure in Contrast to a Graphene Layer via Chemical Vapor Deposition

open access: yesNanomaterials, 2022
Two carbonaceous (amorphous carbon and graphene) coatings were catalytically grown on bulk Ni plates. It was found that the flame-deposited carbon (FDC) layers exhibited a unique hierarchical structure with the formation of FDC/Ni nano-interlocking ...
Wei Meng   +4 more
doaj   +1 more source

Wear rates in urban rail systems [PDF]

open access: yes, 2017
A significant part of maintenance costs in urban rail systems (metro, tram, light rapid transit/light metro) is due to wheel-rail wear. Wear rates - measured for example as depth of wear per kilometre run (rolling stock) or per train passage (rails ...
Licciardello, R.   +3 more
core   +1 more source

A feasibility evaluation of Discovery Group: determining the acceptability and potential outcomes of a patient-led research group in a secure mental health inpatient setting

open access: yesResearch Involvement and Engagement, 2021
Plain English Summary Patients make an important contribution to research. However, it can be hard for patients in a secure mental health hospital to be involved in doing research.
Anne Aboaja   +4 more
doaj   +1 more source

An energy description of wear mechanisms and its applications to oscillating sliding contacts [PDF]

open access: yes, 2003
To quantify wear rates, the Archard approach is classically applied. It relates the wear volume to the product of the sliding distance and the normal load.
Archard   +22 more
core   +1 more source

Nano Serpentine Powders as Lubricant Additive: Tribological Behaviors and Self-Repairing Performance on Worn Surface

open access: yesNanomaterials, 2020
Natural serpentine powders are applicable as additives for various lubricating oils. However, no uniform theories explain their tribological performance, lubrication, and wear mechanism, especially their self-repairing mechanism. Herein, the influence of
Binbin Wang   +6 more
doaj   +1 more source

Data Analysis to Study Sub-threshold Delays Incurred by Tyne and Wear Metro Trains

open access: yesUrban Rail Transit, 2020
The performance of Tyne and Wear Metro system in the UK is measured on a headway basis, and gaps in service that are 4 min or more in excess of scheduled gaps are investigated and the cause documented.
Daniel Screen   +4 more
doaj   +1 more source

Wear maps for TiC composite based coatings deposited on 303 stainless steel [PDF]

open access: yes, 2014
Dry sliding wear (pin-on-disc) tests were carried out under ambient conditions at room temperature for TiC coated and uncoated 303 stainless steel, using alumina as a counterface.
Rasool, G., Stack, M.M.
core   +1 more source

Measuring physical activity using accelerometry in 13-15-year-old adolescents : the importance of including non-wear activities [PDF]

open access: yes, 2011
Objective: The present study aimed to examine the impact of non-wear activities registered in diaries when using accelerometers to assess physical activity (PA) in young adolescents. Design: Data arise from a large-scale cross-sectional study on PA.
Cardon, Greet   +4 more
core   +2 more sources

Measuring the effects of exercise in neuromuscular disorders: a systematic review and meta-analyses [version 1; peer review: 2 approved]

open access: yesWellcome Open Research, 2020
Background: The benefit and safety of exercise training for patients with neuromuscular disorders (NMDs) has long been a contentious topic. This is, in part, due to recognised challenges associated with rare diseases including small and heterogenous ...
Renae J. Stefanetti   +8 more
doaj   +1 more source

Extruded and injection moulded virgin PA 6/6 as abrasion resistant material [PDF]

open access: yes, 2017
Polyamide (PA6/6) is often used as a tribological pair in abrasion prevalent applications such as hinges and sliders. PA6/6 is frequently processed by injection moulding and extrusion process.
Biswas, Sandhyaranieditor   +6 more
core   +4 more sources

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