Results 31 to 40 of about 235,108 (305)

Density and viscosity ratio effects in droplet formation [PDF]

open access: yes38th Aerospace Sciences Meeting and Exhibit, 2000
New results are reported on the propagation of a vortex ring through immiscible fluid interfaces in the limit of high Weber number in microgravity and in I-G. The main objective of the tests is to detennine the effect of density and viscosity ratios on the dynamics of the interaction.
Kim, Choongil, Bernal, Luis P.
openaire   +1 more source

QCD at finite baryon density: nucleon droplets and color superconductivity [PDF]

open access: yesPhysics Letters B, 1998
We use a variational procedure to study finite density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons. We find that uniform states with conventional chiral symmetry breaking have negative pressure with respect to empty space at all but the lowest densities, and are therefore unstable. This is a
Alford, M., Rajagopal, K., Wilczek, F.
openaire   +2 more sources

A hybrid axisymmetric conservative phase-field lattice Boltzmann method for hollow droplet migration

open access: yesFrontiers in Physics, 2023
A hybrid axisymmetric conservative phase-field lattice Boltzmann method is applied to investigate the influence of Marangoni number (Ma), density ratio (ρr), and radius ratio (Rr) on thermocapillary migration of a deformable hollow droplet with ...
Ximei Qin
doaj   +1 more source

Droplet formation in cold asymmetric nuclear matter in the quark-meson-coupling model [PDF]

open access: yes, 1999
The quark-meson-coupling model is used to study droplet formation from the liquid-gas phase transition in cold asymmetric nuclear matter. The critical density and proton fraction for the phase transition are determined in the mean field approximation ...
Arneodo   +42 more
core   +2 more sources

Droplet deformation by short laser-induced pressure pulses [PDF]

open access: yes, 2017
When a free-falling liquid droplet is hit by a laser it experiences a strong ablation driven pressure pulse. Here we study the resulting droplet deformation in the regime where the ablation pressure duration is short, i.e. comparable to the time scale on
Gelderblom, Hanneke   +2 more
core   +11 more sources

Experimental Investigation on the Spray Behaviour of Bluff Body Air-Assisted Atomizer Designs

open access: yesFluids, 2022
This study investigates the gas dynamic effects and atomization behavior of a novel sonic bluff body-assisted two-fluid atomizer with three different geometric configurations based on airflow orifice diameters (d) of 2.0 mm, 3.0 mm, and 4.0 mm.
Raghav Sikka   +3 more
doaj   +1 more source

A multiphase model for exploring electrochemical Marangoni flow

open access: yesElectrochemistry Communications, 2023
A multiphase numerical model based on the volume of fluid (VOF) method is proposed to simulate the transient, electrochemically-generated Marangoni flow in a system comprising a NaOH electrolyte and a eutectic gallium–indium (EGaIn) metal droplet.
E. Karimi-Sibaki   +6 more
doaj   +1 more source

Numerical Analysis of Metal Transfer Process in Plasma MIG Welding

open access: yesMetals, 2022
In plasma MIG welding, inert gas introduced from the torch nozzle is ionized in the upstream region of the MIG arc, which is termed “plasma”. This study aims to clarify the effect of the plasma on the metal-transfer process in the plasma MIG welding ...
Shinichi Tashiro   +4 more
doaj   +1 more source

Interfacial Tension and Surface Pressure of High Density Lipoprotein, Low Density Lipoprotein, and Related Lipid Droplets [PDF]

open access: yesBiophysical Journal, 2012
Lipid droplets play a central role in energy storage and metabolism on a cellular scale. Their core is comprised of hydrophobic lipids covered by a surface region consisting of amphiphilic lipids and proteins. For example, high and low density lipoproteins (HDL and LDL, respectively) are essentially lipid droplets surrounded by specific proteins, their
Ollila, O.H. Samuli   +5 more
openaire   +3 more sources

Relationship between lipid droplets size and integrated optical density

open access: yesEuropean Journal of Histochemistry, 2019
Lipid accumulation is largely investigated due to its role in many human diseases. The attention is mainly focused on the lipid droplets (LDs), spherical cytoplasmic organelles, which are devoted to the storage of the lipids. The amount of lipid content is often evaluated by measuring LDs size and/or the integrated optical density (IOD) in cultured ...
Federico Boschi   +6 more
openaire   +6 more sources

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