Results 31 to 40 of about 451,587 (365)

Universal shape and pressure inside bubbles appearing in van der Waals heterostructures [PDF]

open access: yesNature Communications, 2016
Trapped substances between a two-dimensional (2D) crystal and an atomically flat substrate lead to the formation of bubbles. Their size, shape and internal pressure are determined by the competition between van der Waals attraction of the crystal to the ...
Ekaterina Khestanova   +5 more
semanticscholar   +1 more source

Machine-Learned Free Energy Surfaces for Capillary Condensation and Evaporation in Mesopores

open access: yesEntropy, 2022
Using molecular simulations, we study the processes of capillary condensation and capillary evaporation in model mesopores. To determine the phase transition pathway, as well as the corresponding free energy profile, we carry out enhanced sampling ...
Caroline Desgranges, Jerome Delhommelle
doaj   +1 more source

Theoretical Modeling of Bubbling Regimes in Bubble Formation with Bubble-Bubble and Bubble-Wall Interactions

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2008
In this study, a theoretical model for prediction of bubbling regimes in bubble formation from a single submerged orifice has been developed. The model takes into account both chamber pressure fluctuations, and bubble–bubble and bubble–wall interactions on bubbling regimes.
Xiao, Z. Y., Tan, R. B. H.
openaire   +2 more sources

Bubble mass transfer in fluids under gravity: a review of theoretical models and intensification technologies in industry

open access: yesFrontiers in Physics
Bubble mass transfer is a common phenomenon in industrial applications. In this paper, bubble dynamics in both still and turbulent flow were introduced first, followed by the mass transfer properties of a single bubble and bubble swarms.
Yiyi Ma   +3 more
doaj   +1 more source

Research on Extended Finite Element Method for Axisymmetric Electrostatic Field Based on Liquid Nitrogen with Bubbles

open access: yesApplied Sciences, 2021
In this paper, the extended finite element method (XFEM) is first applied to account for the weak discontinuity of the axisymmetric electrostatic field. Firstly, the interface between two materials in an element is described by the level set method.
Nana Duan   +5 more
doaj   +1 more source

Extrapolation and bubbles

open access: yesJournal of Financial Economics, 2018
We present an extrapolative model of bubbles. In the model, many investors form their demand for a risky asset by weighing two signals—an average of the asset’s past price changes and the asset’s degree of overvaluation.
N. Barberis   +3 more
semanticscholar   +1 more source

Control of bubble size and bubble number in bubble electrospinning

open access: yesComputers & Mathematics with Applications, 2012
AbstractThe surface tension of a bubble depends upon its size; a smaller bubble requires a smaller electronic force for fabrication of ultrafine fibers using bubble electrospinning. The electronic field triggers rupture of interacted bubbles to form daughter bubble cascades, so a very low voltage is needed for nanofiber fabrication.
Ji-Huan He, Yong Liu
openaire   +1 more source

Heat load and deuterium plasma effects on SPS and WSP tungsten

open access: yesNukleonika, 2015
Tungsten is a prime choice for armor material in future nuclear fusion devices. For the realization of fusion, it is necessary to address issues related to the plasma–armor interactions. In this work, several types of tungsten material were studied, i.e.
Vilémová Monika   +6 more
doaj   +1 more source

PROCEDURE FOR DETERMINING HYDRAULIC JET BARBOTTER RESISTANCE FOR COLLECTING FINE DUST

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
North Caucasian Institute of Mining and Metallurgy (State Technological University) has developed a design of a jet bubbler which is based on the patented design of the device main unit – a distribution plate, which allows to implement a foam mode in the
G.I. Sverdlik, A.Yu. Ataeva, A.R. Ataev
doaj   +1 more source

Effect of frother concentration on bubble trailing vortex characteristics and particle entrainment in flotation

open access: yesMeitan kexue jishu, 2023
To investigate the effect of frother concentration on bubbles and their tail vortex zone characteristics in flotation is an important prerequisite for predicting the probability of particle coiling in the trailing vortex zone of flotation bubbles.
ZHU Jinbo   +6 more
doaj   +1 more source

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