Results 21 to 30 of about 1,056,607 (320)

Technical note: Identification of two ice-nucleating regimes for dust-related cirrus clouds based on the relationship between number concentrations of ice-nucleating particles and ice crystals [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Large amounts of dust aerosols are lifted to the upper troposphere every year and play a major role in cirrus formation by acting as efficient ice nuclei.
Y. He   +9 more
doaj   +1 more source

Single-bubble dynamics in nanopores: Transition between homogeneous and heterogeneous nucleation

open access: yesPhysical Review Research, 2020
When applying a voltage bias across a thin nanopore, localized Joule heating can lead to single-bubble nucleation, offering a unique platform for studying nanoscale bubble behavior, which is still poorly understood.
Soumyadeep Paul   +6 more
doaj   +1 more source

Homogeneous Nucleation Theory [PDF]

open access: yes, 1974
F. F. Abraham, A. Zettlemoyer
openaire   +2 more sources

Sensitivity studies of dust ice nuclei effect on cirrus clouds with the Community Atmosphere Model CAM5 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
In this study the effect of dust aerosol on upper tropospheric cirrus clouds through heterogeneous ice nucleation is investigated in the Community Atmospheric Model version 5 (CAM5) with two ice nucleation parameterizations.
X. Liu   +7 more
doaj   +1 more source

Heterogeneous versus homogeneous crystal nucleation of hard spheres. [PDF]

open access: yesSoft Matter, 2019
Hard-sphere model systems are well-suited in both experiment and simulations to investigate fundamental aspects of the crystallization of fluids. In experiments on colloidal models of hard-sphere fluids, the fluid is unavoidably in contact with the walls
J. R. Espinosa   +4 more
semanticscholar   +1 more source

Homogeneous nucleation in spatially inhomogeneous systems [PDF]

open access: yes, 1990
Homogeneous nucleation of a vapor in the presence of the loss of clusters by diffusion and thermophoretic drift is investigated. Analytical results are obtained for the cluster size distribution and the rate of nucleation by solving the modified ...
Okuyama, K., Seinfeld, J. H., Shi, G.
core   +1 more source

Statistical Approach to Crystal Nucleation in Glass-Forming Liquids

open access: yesEntropy, 2021
In this work, methods of description of crystal nucleation by using the statistical approach are analyzed. Findings from classical nucleation theory (CNT) for the average time of formation of the first supercritical nucleus are linked with experimental ...
Joachim Deubener, Jürn W. P. Schmelzer
doaj   +1 more source

Ice nucleation from aqueous NaCl droplets with and without marine diatoms [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Ice formation in the atmosphere by homogeneous and heterogeneous nucleation is one of the least understood processes in cloud microphysics and climate. Here we describe our investigation of the marine environment as a potential source of atmospheric IN ...
P. A. Alpert, J. Y. Aller, D. A. Knopf
doaj   +1 more source

Heterogeneous Crystal Nucleation from the Melt in Polyethylene Oxide Droplets on Graphite: Kinetics and Microscopic Structure

open access: yesCrystals, 2021
It is well known that the crystallization of liquids often initiates at interfaces to foreign solid surfaces. In this study, using polarized light optical microscopy, atomic force microscopy (AFM), and wide-angle X-ray scattering (WAXS), we investigate ...
Muhammad Tariq   +2 more
doaj   +1 more source

Impact of formulations of the homogeneous nucleation rate on ice nucleation events in cirrus [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Homogeneous freezing of solution droplets is an important pathway of ice formation in the tropopause region. The nucleation rate can be parameterized as a function of water activity, based on empirical fits and some assumptions on the underlying ...
P. Spichtinger   +5 more
doaj   +1 more source

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