WebOur approach to the study of mesoscale kinetic simulations of structure and topology evolution during polymer solidification and amorphous-to-spherulite growth phenomena, therefore, is to use a three-dimensional probabilistic cellular automaton model for the prediction of the kinetics and topology of spherulite growth during crystallization. Web24. máj 2024 · We employed vemurafenib (VMN), a clinical drug used for the treatment of BRAF-mutant melanoma, as a model compound. VMN has four known polymorphs (α-, β-, γ-, and δ-VMN), three of which were discovered by melt crystallization. We first solved the crystal structures of α-, β-, and γ-VMN from both open and compact spherulite samples …

Pathology Outlines - Collagenous spherulosis

Web1. máj 2016 · Spherulitic crystallization in polymers occurs by creation of the spherulite core by primary nucleation, followed by the radial growth of fibrillar crystals at a constant rate … Web4. jún 2024 · The end size of the spherulite structures; The crystalline orientation in the matrix; In nucleated polypropylene, crystallization occurs earlier in the cooling process and happens at a faster rate. This allows decreased cooling time of the polymer. Also, nucleation density is much higher and crystal spherulite size is much smaller. jennifer sweeting attorney

"spherulite" - synonymá slova - Slovnik.sk

WebDéclaration CNIL. EM-CONSULTE.COM est déclaré à la CNIL, déclaration n° 1286925. En application de la loi nº78-17 du 6 janvier 1978 relative à l'informatique, aux fichiers et aux libertés, vous disposez des droits d'opposition (art.26 de la loi), d'accès (art.34 à 38 de la loi), et de rectification (art.36 de la loi) des données vous concernant. WebDespite the prevalence and practical importance of spherulite formation, only rather qualitative concepts of this phenomenon exist. It is established that phase field methods … In petrology, spherulites are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone, and rhyolite as globules about the size of millet seed or rice grain, with a duller luster than the surrounding glassy base of the rock, and when they are … Zobraziť viac Under the microscope the spherulites are of circular outline and are composed of thin divergent fibers that are crystalline as verified with polarized light. Between crossed Nicols, a black cross appears in the spherulite; its … Zobraziť viac Spherulites are most common in silica-rich glassy rocks. Sometimes they compose the whole mass; more usually they are surrounded by a glassy or felsitic base. When obsidians are devitrified, the spherulites are often traceable, though they may be … Zobraziť viac Very large and cavernous spherulites are called lithophysae; they are found in obsidians at Lipari, in Yellowstone Park and other places. The characteristic radiate fibrous structure … Zobraziť viac Variolites are a type of radiate fibrous growth, resembling spherulites in many respects, consisting of minute feathery crystals spreading outwards through a fine grained or glassy … Zobraziť viac Occasionally spherulites are found that are many centimeters and, even more rarely, up to two or three meters in diameter. Those spherulites, which are more than 20 centimeters in diameter, are called megaspherulites. Near Silver Cliff, Colorado, … Zobraziť viac Artificial glass sometimes crystallizes and contains spherulites that may be as large as a marble. As the glass has little similarity in chemical composition to volcanic obsidians, these spherulites when analyzed throw little light on the mineral nature of … Zobraziť viac jennifer swisher facebook