Results 41 to 50 of about 1,553 (181)

Synthesis of 2-Hydroxyethyl Esters from Castor Oil as Lubrication Bio-Additive Candidates for Low-Sulfur Fossil Diesel

open access: yesIndonesian Journal of Chemistry, 2022
The present work aims to study the synthesis of 2-hydroxyethyl esters from castor oil and its lubrication properties, promising as a lubrication bio-additive in low sulfur diesel fuel.
Arizal Firmansyah   +4 more
doaj   +1 more source

The Effect of Nanoparticle Additives on the Lubricity of Diesel and Biodiesel Fuels

open access: yesLubricants, 2023
Fuel lubricity is an essential property that ensures the longevity end efficiency of diesel CI engines. Nanomaterials have been shown to have the potential to improve lubricity in many different lubricating substances, including fuels.
Vida Jokubynienė   +2 more
doaj   +1 more source

Effect of fatty acid composition of methyl and ethyl esters on the lubricity at different humidities [PDF]

open access: yes, 2016
Lubricity of individual fatty acid methyl or ethyl esters and biodiesel fuels has been measured using a high frequency reciprocating rig (HFRR). Tests have been carried out varying the ambient humidity to assess the effect of this parameter on the ...
Bolonio Martín, David   +3 more
core   +2 more sources

Effect of maturation on hemodynamic and autonomic control recovery following maximal running exercise in highly-trained young soccer players

open access: yesFrontiers in Physiology, 2011
The purpose of this study was to examine the effect of maturation on post-exercise hemodynamic and autonomic responses. Fifty-five highly-trained young male soccer players (12-18 yr) classified as pre-, circum- or post-peak height velocity (PHV ...
Martin eBuchheit   +4 more
doaj   +1 more source

Tribological Performance of Si‐Doped Hydrogenated Diamond‐Like Carbon Coatings in Different Biodiesel

open access: yesJournal of Applied Chemistry, Volume 2016, Issue 1, 2016., 2016
In this paper, two kinds of different biodiesel were tested in terms of their impact on wear resistance of Si‐DLC coated 100Cr6 flat worn by an oscillating 100Cr6 ball. The knowledge about the tribological behaviour of different types of biodiesel is rare. Rape and soybean are two of the most common natural sources for biodiesel production.
Annett Dorner-Reisel   +4 more
wiley   +1 more source

A Comparison of the Stability Performance of Blends of Paraffinic Diesel and Petroleum‐Derived Diesel, with RME Biodiesel Using Laboratory Stability Measurement Techniques

open access: yesJournal of Fuels, Volume 2015, Issue 1, 2015., 2015
In 2012, a new specification for synthetic fuels containing up to 7% biodiesel (FAME) was approved (CEN TS 15940). This specification allows the sale of neat paraffinic diesel, such as Gas‐to‐Liquids (GTL) diesel, to captive fleets in Europe. Several aspects are important in the final end‐use application, including the stability of the fuel.
S. de Goede   +6 more
wiley   +1 more source

The Impact of Fatty Acid Diisopropanolamides on Marine Gas Oil Lubricity

open access: yesLubricants, 2017
In this study, seven mixtures of diisopropanolamides that were synthesized from various vegetable oils (sunflower oil, soybean oil, cotton seed oil, olive oil, tobacco seed oil, coconut oil, used frying oil) were used as lubricating additives in a low ...
George Anastopoulos   +5 more
doaj   +1 more source

Сhanging the lubricity of diesel fuel with vegetable oil additive

open access: yesВестник СибАДИ, 2021
Intriduction. The environmental safety of cars with a diesel engine does not lose its relevance. In the conditions of stricter requirements for diesel fuel, the content of many substances harmful to the environment, including sulfur, is not allowed.
S. N. Krivtsov, T. I. Krivtsova
doaj   +1 more source

Decolorization improves the fuel properties of algal biodiesel from Isochrysis sp. [PDF]

open access: yes, 2016
© The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Fuel 179 (2016): 229-234, doi:10.1016/j.fuel.2016.03.061.Results from ...
Burlow, Noah P.   +4 more
core   +1 more source

Effect of Acute Mental Stress on Heart Rate and QT Variability in Postmyocardial Infarction Patients

open access: yesInternational Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012
Emotionally charged events are associated with an increased risk of sudden cardiac death (SCD). In this study we assessed RR and QT variability index (QTVI) at baseline during anger recall test (AR). We calculated QTVI from a 5‐min ECG recording and from a 10‐beats segment around the presumed maximum sympathetic activation in thirty post‐myocardial ...
Damiano Magrì   +11 more
wiley   +1 more source

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