Results 61 to 70 of about 1,553 (181)
Energy Bounds in $f(R,G)$ Gravity with Anisotropic Background
, 2017 This paper investigates the energy bounds in modified Gauss-Bonnet gravity with anisotropic background. Locally rotationally symmetric Bianchi type ${I}$ cosmological model in $f(R,G)$ gravity is considered to meet this aim. Primarily, a general $f(R,G)$
Komal, Ayesha, Shamir, M. Farasat
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The lubricity of ethanol-gasoline fuel blends
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 In this work the lubricity of several ethanol (hydrated or anhydrous) / gasoline fuel blends was measured by using a conventional HFRR tester. Tests were carried out at 25ºC with no water vapour pressure control, according to the ASTM D6079 standard ...
John Agudelo +2 more
doaj +1 more source
Comparison Between the Action of Nano-Oxides and Conventional EP Additives in Boundary Lubrication
Lubricants, 2020 Additives are essential in lubricant development, improving their performance by the formation of a protective film, thus reducing friction and wear. Some such additives are extreme pressure additives.
Valdicleide Silva Mello +3 more
doaj +1 more source
The influence of zinc dialkyldithiophosphate and other lubricant additives on soot-induced wear
, 2011 Diesel engines are becoming increasingly popular in both passenger and commercial vehicles because they offer better fuel efficiency than their gasoline counterparts.
Olomolehin, Yewande, Olomolehin, Yewande
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A Review on the Impact of Bio‐Additives on Tribological Behavior of Diesel Fuels
Advances in Tribology, Volume 2024, Issue 1, 2024.Automobile engines require lubrication to lessen the impact of friction due to the high levels of wear and frictional heat generated by the sliding parts. Wear and friction will cause engine parts to endure for less time, be less reliable, and require more maintenance. Diesel fuel can potentially be replaced with biodiesel among other fuels.
Hailegebrel Zewdie +5 more
wiley +1 more source
Extending the environmental benefits of ethanol–diesel blends through DGE incorporation [PDF]
, 2015 The research focuses on the potential use of DGE (diethylene glycol diethyl ether), as a high-cetane number oxygenated additive to diesel-like fuels. Apart from evaluating its individual effects an investigation of how DGE can facilitate the use of bio ...
Herreros, Martin +3 more
core +2 more sources
Effect of steel hardness on soot wear
, 2017 Due to incomplete combustion, high levels of soot can accumulate in engine lubricants between drain intervals. This soot can promote wear of engine parts such as timing chains and cam followers.
Kontou, A, Southby, M, Spikes, HA
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OS COMBUSTÍVEIS VERDES DO BRASIL - AVALIAÇÃO DA LUBRICIDADE DO BIODIESEL B5 E ÓLEOS DE MAMONA E COCO
Holos, 2011 O biodiesel é uma opção brasileira ambiental e economicamente geradora de tecnologia, de divisas e de renda. Do ponto de vista tribológico, a lubricidade do Biodiesel e o tempo de vida da linha de alimentação do combustível se correlacionam.
Aline Mendes Farias +5 more
doaj +1 more source
F(T) gravity and k-essence [PDF]
, 2012 Modified teleparallel gravity theory with the torsion scalar have recently gained a lot of attention as a possible explanation of dark energy. We perform a thorough reconstruction analysis on the so-called $F(T)$ models, where $F(T)$ is some general ...
A Einstein +24 more
core +1 more source
Wear and Electrical Resistance on Diesel Lubricated Surfaces Undergoing Reciprocating Sliding [PDF]
, 2018 Tribological tests, using the high-frequency reciprocating rig (HFRR), were carried out on commercial diesel fuels with a range of lubricities as well as on solutions of methyl stearate and stearic acid in ultra-low-sulphur, additive-free diesel.
Crockett, R.M. +3 more
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