Results 21 to 30 of about 114,827 (292)
A linear systems analysis of the yaw dynamics of a dynamically scaled insect model [PDF]
, 2010 Recent studies suggest that fruit flies use subtle changes to their wing motion to actively generate forces during aerial maneuvers. In addition, it has been estimated that the passive rotational damping caused by the flapping wings of an insect is ...
Dickinson, Michael H. +3 more
core +1 more source
Viscous Kelvin-Helmholtz instabilities in highly ionised plasmas [PDF]
, 2013 Transport coefficients in highly ionised plasmas like the intra-cluster medium (ICM) are still ill-constrained. They influence various processes, among them the mixing at shear flow interfaces due to the Kelvin-Helmholtz instability (KHI).
Brueggen, M. +7 more
core +2 more sources
SciPost Physics, 2021 Recently, it has been found that the kinematic viscosity of liquids at the minimum, $\nu_m$, can be expressed in terms of fundamental physical constants, giving $\nu_m$ on the order of $10^{-7}~{\rm m^2/s}$.
Kostya Trachenko, Vadim Brazhkin, Matteo Baggioli
doaj +1 more source
Viscosity and tribology of copper oxide nanofluids [PDF]
, 2008 Nanofluids, a term proposed by Choi in 1995 [1], are composites consisting of solid nanoparticles with sizes varying generally from 1 to 100 nm dispersed in a liquid.
Fernandez, J.E. +3 more
core +1 more source
Tribology Online, 2022 In this work, the degradation of selected lubrication oil parameters until the specified threshold is predicted based on Gaussian process regression (GPR) to extend the oil change interval.
Najat Mohammad Nazari +2 more
doaj +1 more source
Stability of the viscously spreading ring [PDF]
, 2002 We study analytically and numerically the stability of the pressure-less, viscously spreading accretion ring. We show that the ring is unstable to small non-axisymmetric perturbations.
Flebbe +19 more
core +3 more sources
Flow behavior of petrol, bio-ethanol and their blends
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2012 The objective of this article deals with the flow behavior of bio-ethanol, conventional petrol and their blends (E15, E85). The temperature dependence density and kinematic viscosity of the liquids have been measured.
Vojtěch Kumbár, Adam Polcar
doaj +1 more source
Egyptian Journal of Petroleum, 2022 The engine oil contains various performance additives along with polymer-based viscosity index improver, which are made from special types of flexible long chain polymers whose functionality is derived from their thickening efficiency, viscosity ...
M.S. Negi +4 more
doaj +1 more source
, 2014 Citation: 'kinematic viscosity' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.K03395 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
+4 more sources
Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds
Science Journal of University of Zakho, 2019 the effect of polarity of solvent on the viscosity and viscosity index of lubricating engine oil has been studied using ethanol as an example of polar solvent and toluene as an example of non-polar solvent at different solvent ratios and ambient ...
Shenwar A. Idrees +2 more
doaj +1 more source