Results 41 to 50 of about 622,801 (288)

Evaluation of Various Shear-Thinning Models for Squalane Using Traction Measurements, TEHD and NEMD Simulations

open access: yesLubricants, 2023
The accurate prediction of friction in highly loaded concentrated contacts is one of the most challenging aspects of thermal elastohydrodynamic (TEHD) simulation.
Thomas Neupert, Dirk Bartel
doaj   +1 more source

Nonmodal stability in Hagen-Poiseuille flow of a shear thinning fluid

open access: yes, 2012
Linear stability in Hagen-Poiseuille flow of a shear-thinning fluid is considered. The non-Newtonian viscosity is described by the Carreau rheological law.
刘荣   +3 more
core   +1 more source

Shear Thinning and Local Melting of Colloidal Crystals [PDF]

open access: yesPhysical Review Letters, 2011
Phenomena such as shear thinning and thickening, occurring when complex materials are exposed to external forces, are generally believed to be closely connected to changes in the microstructure. Here, we establish a direct and quantitative relation between shear thinning in a colloidal crystal and the surface area of the locally melted region by ...
Dullens, Roel P. A., Bechinger, Clemens
openaire   +4 more sources

Shear‐thinning behaviour of blood in response to active hyperaemia: Implications for the assessment of arterial shear stress‐mediated dilatation

open access: yes, 2019
NEW FINDINGS: • What is the central question of this study? Quantitative values of shear rate-specific blood viscosity and shear stress in the human macrovasculature in response to exercise hyperaemia are unknown.
Michael J. Simmonds   +5 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Flow and hydrodynamic shear stress inside a printing needle during biofabrication.

open access: yesPLoS ONE, 2020
We present a simple but accurate algorithm to calculate the flow and shear rate profile of shear thinning fluids, as typically used in biofabrication applications, with an arbitrary viscosity-shear rate relationship in a cylindrical nozzle.
Sebastian J Müller   +7 more
doaj   +1 more source

Piv study of mixing characteristics in a stirred vessel with a non-Newtonian fluid [PDF]

open access: yes, 2012
PIV is used to analyze the flow induced by a Rushton turbine in a shear-thinning fluid, at constant input power, constant impeller velocity but different concentrations. The rheology of each shear-thinning fluid is first addressed.
Anne-Archard, Dominique   +4 more
core  

Pre-commercial thinning of beech (Fagus sylvatica L.) [PDF]

open access: yes, 2006
This paper reports early effects of stump height on the growth and natural pruning of potential crop trees after pre-commercial thinning of a young stand of naturally regenerated beech (Fagus sylvatica L.) in Denmark.
Sørensen, Ib Holmgård   +3 more
core   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

An improved equivalent viscosity model for the bubbly oil under high shear rate

open access: yesFriction
Shear-thinning effect of pure oil and distribution of bubble size are essential factors affecting the viscosity of bubbly oil. This study aims to establish an improved equivalent viscosity model for bubbly oil by considering the shear-thinning effect and
Shaohua Li   +3 more
doaj   +1 more source

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