Sentences with phrase «called nucleation»

It takes a certain finite amount of time for the initial crystals to form, a process called nucleation.

Scientists are working to understand their underlying processes, such as which particle surface properties encourage or discourage ice formation, called nucleation, so they can accurately simulate how, where, and when clouds are formed.

Now Peter Velikov and Siu - Tung Yau at the University of Alabama at Huntsville have used an atomic force microscope to take the first images of the birth of the seed crystals, a process called nucleation.

The transformation of gas molecules into clusters and then into particles, a process called nucleation, produces more than half of the particles that seed cloud formation around the world today.

This process is called nucleation.

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

Not exact matches

The team started by looking at the formation of the very small particles — a process called aerosol nucleation — by mimicking atmospheric conditions inside an ultraclean steel «cloud chamber», which Kirkby says is the cleanest ever created.

To overcome the nucleation barrier and start to solidify, however, the liquid has to be cooled well below its freezing point - what scientists call «supercooling.»

In the absence of any ice nuclei, the freezing of supercooled water droplets of a few micrometres in radius, in a process called homogeneous ice nucleation, requires temperatures at or lower than − 39 °C (− 38 °F).

Their freezing can either be triggered by aerosol particles acting as a so - called ice nuclei (IN), or occur homogeneously (without IN) at about − 38 ◦ C The goal of many laboratory studies was and is to assess the ice nucleation ability of selected aerosol particles of a... http://search.proquest.com/openview/421dd0783b387a8e030902328dcc6f23/1.pdf?pq-origsite=gscholar&cbl=105744