Results 211 to 220 of about 24,680 (258)

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

Advanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme   +5 more
wiley   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

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Shear Thinning of Noncolloidal Suspensions

Physical Review Letters, 2016
Shear thinning-a reduction in suspension viscosity with increasing shear rates-is understood to arise in colloidal systems from a decrease in the relative contribution of entropic forces. The shear-thinning phenomenon has also been often reported in experiments with noncolloidal systems at high volume fractions.
Adolfo Vázquez-Quesada, Roger I Tanner, Marco Ellero   +2 more
exaly   +5 more sources

Shear thinning of nanoparticle suspensions

Physical Review E, 2009
Results of large scale nonequilibrium molecular dynamics simulations are presented for nanoparticles in an explicit solvent. The nanoparticles are modeled as a uniform distribution of Lennard-Jones particles, while the solvent is represented by standard Lennard-Jones particles.
Pieter J, In 't Veld, Matt K, Petersen, Gary S, Grest   +2 more
openaire   +2 more sources

Structuring Sedimentation in a Shear-Thinning Fluid

Physical Review Letters, 2005
We study the sedimentation of suspensions of monodisperse non-Brownian particles in a shear-thinning polymeric fluid. We observe the formation of particle-rich structures and show that they are associated with a well-defined flow pattern. The results suggest that the observed structuring is a consequence of particle aggregation that amplifies ...
Mora, S., Talini, L., Allain, C.
openaire   +2 more sources

Discontinuous shear thinning in ordered suspensions

Physical Review Letters, 1990
The flow properties of concentrated suspensions having crystalline order at rest are reported. The suspensions contain charge stabilized particles and the softness of particle interaction is altered by varying the suspending phase ionic strength. The suspensions display a yield stress ${\mathrm{\ensuremath{\tau}}}_{\mathit{y}}$, and for stresses larger
, Chen, , Zukoski
openaire   +2 more sources

Viscoelasticity and shear thinning of nanoconfined water

Physical Review E, 2014
Understanding flow properties and phase behavior of water confined to nanometer-sized pores and slits is central to a wide range of problems in science, such as percolation in geology, lubrication of future nano-machines, self-assembly and interactions of biomolecules, and transport through porous media in filtration processes.
Karan, Kapoor, , Amandeep, Shivprasad, Patil   +2 more
openaire   +2 more sources

Shear thinning in non-Brownian suspensions

Soft Matter, 2018
We study the flow of suspensions of non-Brownian particles dispersed in a Newtonian solvent.
Chatté, Guillaume, Comtet, Jean, Niguès, Antoine, Bocquet, Lydéric, Siria, Alessandro, Ducouret, Guylaine, Lequeux, François, Lenoir, Nicolas, Ovarlez, Guillaume, Colin, Annie   +9 more
openaire   +4 more sources

Shear-thinning of polydisperse suspensions

Journal of Physics D: Applied Physics, 2008
The effects of the polydispersivity of the particle phase on the rheology of suspensions are studied with falling-ball rheometry. The model suspensions consist of large, neutrally buoyant spheres in a viscous Newtonian suspending fluid. The experiments determine the average velocity of the settling particle along the centreline or axis of the ...
P T Reardon, S Feng, A L Graham, V Chawla, R S Admuthe, J Abbott   +5 more
openaire   +1 more source

The rise of bubbles in shear thinning viscoelastic fluids

Journal of Colloid and Interface Science, 2022
Bubbles in a liquid rise under gravity and separate to the top. Bubbly liquids exist commonly in nature and play a significant role in energy-conversion, oil and chemical industries. Therefore, understanding how bubbles rise is of great importance. Rheological properties of the fluid have a strong impact on single bubble rise and have been shown to ...
Q, Chen, F, Restagno, D, Langevin, A, Salonen   +3 more
openaire   +2 more sources