nucleation


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Related to nucleation: heterogeneous nucleation

nu·cle·a·tion

(nū-klē-ā'shŭn),
Process of forming a nidus (4).

nucleation

The process of forming a nucleus.
 
Chemistry
The formation of crystals in a supersaturated inorganic solution.
 
Physiology
The assembly of G-actin subunits into small oligomers, which is a rate-limiting step in actin polymerisation.

nu·cle·a·tion

(nū'klē-ā'shŭn)
Process of forming a nidus (4).
References in periodicals archive ?
According to the classical nucleation theory, the free energy of homogeneous nucleation is can be expressed as [DELTA][G.sup.*.sub.hom] = 16[pi][gamma]/3([DELTA][P.sup.2]), and the free energy of heterogeneous nucleation is can be expressed as [DELTA][G.sup.*.sub.het] = 16[pi][gamma]/3([DELTA][P.sup.2])f ([theta][omega].
The prediction of the IN concentration in the model is very complex and difficult due to the lack of understanding of the relative importance of the four heterogeneous ice crystal nucleation mechanisms.
Homogeneous and Heterogeneous Nucleation. Freezing nucleation can be divided into homogeneous nucleation and heterogeneous nucleation.
Since the nucleation of austenite transformation remains with the site saturation nucleation, it can be assumed that the nucleation has been completed when the growth begins.
2010); instruments capable of measuring all modes of the ice nucleation cycle, including techniques for measuring tropospheric water vapor concentration (Neely and Thayer 2011); methods of characterizing the structure of ice in clouds (Carr et al.
The barrier energy for heterogeneous nucleation is not reached by small amounts of cooling energy at these temperatures.
The XRD patterns (figure 3) of the nucleation side of the D1 and D2 films clearly show crystalline diamond phase.
the nucleation effect and thermal behavior of bisamides compound with different methylene chain and develop more bisamides type nucleation agent for PLLA, N, N'-Bis(benzoyl) tridecanedioic acid dihydrazide(NA) was synthesized, and the nucleation effect and thermal behavior of bisamides compound NA as nucleating agent for PLLA was evaluated by using DSC, POM and WAXD.
In addition to the dependence of the nucleation efficiency of these four modes on temperature and relative humidity, there is also a dependence on the physical and chemical properties of the surfaces of the ice nuclei that facilitates ice embryo formation (Pruppacher and Klett, 1997; DeMott et al., 2011).
We also found that the nucleation time of hydrogen bubble was larger than the growth time, which means that the nucleation process is the key factor during the whole process of hydrogen bubble evolution.