Sentences with word «nucleating»

Instead of nucleating into a new particle, H2SO4 could also condense on an existing aerosol particle, making it grow in size.

If sulfate aerosols nucleate cloud drops, resulting in a greater number of smaller droplets rather than a few large ones, this will further increase scattering and cooling.

According to Christner, agricultural losses from ice nucleating bacteria, such as Pseudomonas syringae, often exceed $ 1 billion dollars per year in the United States, so understanding their mode of dispersal is essential for mitigating their impact on crops.

With atmospheric conditions this warm, the chemically ice nucleating elements often reach the ground level before setting up as ice, thus creating extremely destructive «ice storms».

Crossing this barrier enabled the liquid to propagate laterally across the surface in a stepwise fashion, often nucleating from a central point before zipping along the grooves and filling them.

There are four mechanisms or ways in which ice nucleates in the atmosphere.

The first ice crystals tend to nucleate on dirt, scratches or other imperfections in the glass, so defining the first sketchy outlines of the frost pattern.

«High porosity along the interfacial zones of inert aggregates in Portland cement concrete creates the sites where crack paths first nucleate and propagate.»

Researchers in the UK, the US and Germany have succeeded in obtaining videos of graphene nucleating and growing on polycrystalline metal surfaces using scanning electron microscopy.

At supersaturated atmospheric conditions, bare and coated particles had a nearly equivalent predisposition for nucleating ice.

The most prevalent trace gases do not generally nucleate new aerosols (or even condense onto existing ones), because they are too volatile (i.e. they have a high saturation vapor pressure and thus evaporate readily).

The Dominguez lab was first interested in WHAMM because of its role in the regulation of the Arp2 / 3 complex, the only branched - actin nucleating system in cells.

Led by PNNL, the cross-functional research team, working under a measurements - to - modeling paradigm, investigated the ice nucleating properties for different dust samples affected by another kind of pollution.

Oskar protein, which contains LOTUS and SGNH - hydolase - like domains, nucleates formation of germ granules, RNP complexes containing RNAs and proteins essential for germ cell formation and function.

These clouds obviously contain something that efficiently nucleates ice at those much warmer temperatures.

Steven Lindow, a Ph.D. student at the University of Wisconsin who independently discovered P. syringae's ice - nucleating capability around the same time Vali and Fresh did, found that frost damage is not caused by temperature alone; syringae bacteria on leaves actually use ice crystals as crowbars to rip open plant cells and grab their nutrients.

For bulk water samples, these conditions are described as «no man's land,» because ice nucleates before such temperatures can be reached.

The formation of neutral (i.e. uncharged) nucleating clusters of sulfuric acid and dimethylamine was observed for the first time.

Here, 20 - and 30 - repeat proteins take different forms to nucleate fibers.

«Those patterns and the frictional behavior they cause might be able to tell us something about how earthquakes nucleate and how they propagate.»

Fundamental research at the national laboratory was focused on the dynamic, interfacial processes that control how grains nucleate, grow, and move inside metals during deformation.

«We found that exposing particles to sunlight makes the particles increasingly more oxidized and acidic, which in turn makes it easier for such particles to nucleate water and make cloud droplets,» said Professor Sergey Nizkorodov, a physical chemist at UCI who led the study.

Nucleating cavitation from laser - illuminated nano - particles.

You do not choose what you write about - an idea crawls under your skin and nucleates until there is nothing left to do but write it out.

In a process called cloud seeding, silver iodide, with effective ice - nucleating temperatures of less than − 4 °C, has been used for years in attempts to convert supercooled water to ice crystals in regions with a scarcity of natural ice nuclei.

They will also enable us to address how bicarbonate anions interact with calcium and magnesium cations in solution to create the nanoclusters that nucleate limestone formation, and how bicarbonate anions buffer blood and other bodily fluids.»

Since super cooled water doesn't magically nucleate when you might expect, based on Boltzmann, perhaps a little creativity could be a wonderful thing.

Some of the work at CERN seemed to say that cosmic rays nucleate very small droplets that do not increase to cloud size... Anyway, some of us follow GCR for reason of climate amplifications and even Ozone hole development.

Patented processes for artificially ice nucleating winter storms are owned by our government and have existed for many decades (the Chinese have openly stated they are «engineering snowstorms»).

By causing frost to set in at higher temperatures — at 25ºF, say, rather than 15 — ice - nucleating bacteria would have caused freezing to happen more slowly, helping protect the plants they lived on.

Areas of the storm then suddenly flash back to rain as the jet aircraft sprayed chemical ice nucleating agents settle down through the air column.

Clouds at — 30 or — 35ºF are often entirely liquid because they do not contain any efficient ice - nucleating particles.