Results 1 to 10 of about 114,678 (149)

Kinematic Viscosity ofMulticomponent FeCuNbSiB-BasedMelts [PDF]

Nanomaterials, 2021
The work investigated the temperature dependences of the kinematic viscosity for multicomponent melts of nanocrystalline soft magnetic alloys. It is shown that there is a linear relationship between the reduced activation energy of viscous flow Ea·(RT)−1
Yuri N. Starodubtsev, Vladimir S. Tsepelev, Nadezhda P. Tsepeleva   +2 more
doaj   +2 more sources

Experimental Estimation of Kinematic Viscosity of Low-Density Air Using Optically Derived Macroscopic Transient Flow Parameters [PDF]

Sensors
This article presents a novel experimental method of calculation of kinematic viscosity parameter for rarefied/low-density air using the analysis of optically recorded oscillations of the stratospheric balloon mission parachute’s canopy.
Tomasz Aleksander Miś
doaj   +2 more sources

The influence of kinematic viscosity of oils on the energy consumption of a gear pump used for pumping oil in machines and vehicles. [PDF]

PLoS ONE
The general theory of oil pumping using gear pumps shows that as kinematic viscosity increases, so does the energy requirement to drive the pump shaft. However, modern oils used in machines and vehicles are characterized by a wide range of modifiers that
Łukasz Warguła, Łukasz Gierz, Olga Zharkevich, Bartosz Wieczorek, Łukasz Wojciechowski, Karolina Perz, Alexandra Berg, Andrey Berg, Darkhan Zhunuspekov, Asset Altynbaev, Piotr Kaczmarzyk, Anna Dziechciarz   +11 more
doaj   +2 more sources

Developing and Investigating the Analyzers of Kinematic Viscosity and Density of Petroleum Products on Throttle Bridge Transducers

Inventions, 2021
Measuring the viscosity and density of petroleum products is important for their proper production, transportation and application. Viscosity and density are the main parameters determining the composition and structure of petroleum products.
Andriy Semenov, Volodymyr Drevetskyi, Andrii Rudyk, Olena Semenova, Paweł Komada   +4 more
doaj   +1 more source

Analysis of selected results of engine oil tests [PDF]

MATEC Web of Conferences, 2019
The study presents selected results of viscosity tests performed for different temperatures of lubricating oil with viscosity marked as 5w30. Viscosity tests of new oil and oil right after being used have been compared.
Landowski Bogdan, Baran Monika
doaj   +1 more source

The study on the influence of oxidation degree and temperature on the viscosity of biodiesel

Green Processing and Synthesis, 2020
Jatropha curcas biodiesel was taken as the research object, studied the single and compound effects of oxidation degree and temperature on kinematic viscosity of biodiesel, and established a mathematical model.
Wang Shuang, Sui Meng, Luo Huilong, Li Fashe, Zhai Yuling   +4 more
doaj   +1 more source

Correlation of tangible quality parameters of vegetable-based transformer fluids

Heliyon, 2023
Due to the inherent environmental footprint of petroleum derived transformer fluids, the power industry is gradually exploring the potential of vegetable oils as alternatives.
Adango Miadonye, Mumuni Amadu, James Stephens, Thomas O'Keefe   +3 more
doaj   +1 more source

Using Artificial Neural Network for Estimation of Density and Viscosities of Biodiesel–Diesel Blends

Journal of Chemical and Petroleum Engineering, 2015
In recent years, biodiesel has been considered as a good alternative of diesel fuels. Density and viscosity are two important properties of these fuels.
Gholamreza Moradi, Majid Mohades, Bita Karami, Ramin Moradi   +3 more
doaj   +1 more source

Exact non-equilibrium solutions of the Einstein-Boltzmann equations. II [PDF]

, 1996
We find exact solutions of the Einstein-Boltzmann equations with relaxational collision term in FRW and Bianchi I spacetimes. The kinematic and thermodynamic properties of the solutions are investigated.
Anderson J L, Caderni N, Calvao M O, Ellis G F R, Ellis G F R, Ellis G F R, Ellis G F R, Ellis G F R, F P Wolvaardt, Israel W, Maartens R, Matravers D R, Nesteruk A V, Penrose R, Penrose R, Roy Maartens, Udey N   +16 more
core   +2 more sources

Low-temperature behaviour of the engine oil

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013
The behaviour of engine oil is very important. In this paper has been evaluated temperature dependence kinematic viscosity of engine oils in the low temperatures.
Vojtěch Kumbár, Artüras Sabaliauskas
doaj   +1 more source