Results 21 to 30 of about 1,553 (181)
Tribological Performance of Biomass-Derived Bio-Alcohol and Bio-Ketone Fuels
Energies, 2021 This study relates to developing future alternative fuels and focuses on the effects of a fuel’s molecular structure on its properties and performance in advanced propulsion systems.
Omid Doustdar +5 more
doaj +1 more source
Tribologia - Finnish Journal of Tribology, 2021 Dry, lubrication (SAE15W40), and coated (DLC-Star) reciprocating tribological tests on rapid solidified AlSi17Cu3.5-4Mg0.6-0.8 alloy was conducted using a high frequency linear reciprocating rig (HFRR) at ambient temperature.
N.D. Malleswararao.K +2 more
semanticscholar +1 more source
Current Research in Green and Sustainable Chemistry, 2022 The development of bio-lubricant is an immerging area of research considering the rapid depletion of petroleum reserve and environmental concern. This study aims to develop non-edible jatropha oil-based bio-lubricant and investigate the tribological ...
M. Shahabuddin +6 more
doaj +1 more source
Energy Reports, 2021 This study focused on evaluating the lubricity of diesel–biodiesel fuel with oxygenated alcoholic and nano-particle additives. Fuel injection system lubrication depended primarily on the fuel used in the diesel engine.
M.A. Mujtaba +12 more
doaj +1 more source
Lubricants, 2023 While the methyl ester structure in biodiesel is responsible for lubrication improvement in base fuels with poor lubricity properties such as ultra-low sulfur diesel and non-upgraded HVO, relatively little is known about its effect on all-level blends ...
Nur Allif Fathurrahman +6 more
doaj +1 more source
Extraction and tribological investigation of top piston ring zone oil from a gasoline engine [PDF]
, 2006 With tightening emission regulations, increased expected fuel economy, and longer drain intervals impacting on lubricant formulation, greater understanding of how oil degrades in an automotive engine is becoming ever more important.
Chung, S. +6 more
core +1 more source
Fuels, 2023 In an attempt to avoid serious problems that can affect the efficiency of refueling ground-operated vehicles and aircraft during military operations, the Armed Forces of the North Atlantic Treaty Organization (NATO) are introducing the use of a unique ...
George Anastopoulos +5 more
doaj +1 more source
Analysis of Sinus Variability in a Group of Cameroonian Athletes. [PDF]
J Sports Med (Hindawi Publ Corp)Background. Heart rate variability (HRV) analysis is a useful method for assessing the heart’s ability to adapt to endogenous and exogenous loads. Data from African population on HRV are scarce and even more so in sports populations. This study aimed to compare cardiac autonomic modulation response in Cameroonian athletes and sedentary. Methodology. We
Djientcheu DFY +7 more
europepmc +2 more sources
Effects of sebum properties on skin friction: investigation using a bench test
Biosurface and Biotribology, Volume 6, Issue 2, Page 43-47, June 2020., 2020 The hydro lipid film is an emulsion of sweat and sebum that covers the surface of the human skin and affects the tribological properties of the human skin. This study investigates the effects of the composition of the sebum on the average coefficient of friction.
Kerlen T. Korbeld +4 more
wiley +1 more source
Evaluation of Lubricating Properties of Diesel Based Fuels Micro Emulsified With Glycerin [PDF]
Materials Research, 2017 The mineral diesel oil sold in Brazil, due to environmental reasons; presents sulfur concentration of 10 ppm, which causes a deficiency of lubricity, since sulfur is one of the chemical species that gives a good lubricating characteristic. Poor lubricity
Igor Micael Alves Uchôa +4 more
doaj +1 more source