Sentences with word «nucleation»

Typical temperature - supersaturation regions can be identified for the «onset» of ice nucleation of these different particle types, but the various particle sizes and activated fractions reported in different studies have to be taken into account when comparing results obtained with different methodologies.

As the chemical ice nucleation process progresses, a shallow cold dense layer of air is eventually created at the ground level.

As the atoms move around in the supercooled state in search for nucleation sites, the temperature continues to drop.

Bacteria in the atmosphere, for instance, work as nucleation sites for water droplets.

Theoretical calculations identify the formation of an unusually stable aromatic acid — sulfuric acid complex, which likely leads to a reduced nucleation barrier.

Despite its relevance, little is known about the precipitation mechanism of calcium carbonate, and specified complex crystal structures challenge the classical view on nucleation considering the formation of metastable ion clusters.

So that you know, these are little combustible particles in soot etcetera, into the atmosphere and these particles act as nucleation for clouds and the clouds are reflective.

As far as the webbly is concerned — no one is suggesting that bosons or fermions play any role in real world droplet nucleation rates in a supersaturated atmosphere.

Some particles facilitate the process, however, through a process called nucleation.

There are different modes of heterogeneous nucleation of ice (Vali, 1985).

See here and here for a review of atmospheric nucleation processes.

However, because of its acidity, H2SO4 (and potentially MSA) can enhance the formation and growth of secondary organic aerosol (SOA) from organic compounds (5, 44, 45), including those produced by homogeneous nucleation of low - volatility species (46).

«Previously, we thought that collagen fibrils could serve as passive templates, however, this study confirmed that collagen fibrils play an active role in biomineralization by controlling nucleation pathways and energy barriers.

At PNNL, Legg uses atomic force microscopy, statistical mechanics, and thermodynamics to answer difficult questions about mineral nucleation, nanoparticle aggregation, and nanoparticle - environment interactions.

The binding of carbonate ions in the clusters (and in particles after nucleation) requires titration with dilute NaOH to maintain constant pH (SOM section 2.1 and fig.

... a reduction of deposition nucleation by various coatings on mineral dust.

Accuracy in satellite observations must be improved to estimate the formation of nucleation mode particles

«Calcium Carbonate Nucleation Driven by Ion Binding in a Biomimetic Matrix Revealed by In Situ Electron Microscopy.»

Their videos (use the link below) capture varying scales of water nucleation occurring in the nano - structures and the absorption of the majority of an impacting rain droplet with little or no splashing.

«Molecular details of protein crystal nucleation uncovered.»

Over forested areas, the relative role of organic compounds is expected to be much larger (though a strong correlation of nucleation events with sulfuric acid remains).

The Wang and Ma labs have discovered the structural basis for actin nucleation.

With most temperatures on the ground still at well above freezing This is a result of chemical ice nucleation elements that are being utilized on an unimaginable scale as the climate engineers try desperately to turn warmth into winter.

«This is definitely another means of controlling nucleation,» said De Yoreo.

Combined nucleation experiments on n - Nonane using a two valve expansion chamber and supersonic nozzle

«Experimental Evidence for the Role of Ions in Particle Nucleation under Atmospheric Conditions.»

Ozone kills bacteria thus it reduces nucleation sites and presumably cloud formation.