Too hot to melt
نویسندگان
چکیده
منابع مشابه
Hot and solid gallium clusters: too small to melt.
A novel multicollision induced dissociation scheme is employed to determine the energy content for mass-selected gallium cluster ions as a function of their temperature. Measurements were performed for Ga(+)(n) (n=17 39, and 40) over a 90-720 K temperature range. For Ga+39 and Ga+40 a broad maximum in the heat capacity-a signature of a melting transition for a small cluster-occurs at around 550...
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Activins are members of the transforming growth factor b (TGFb) family of growth and differentiation factors (1). Like the other members of this family, they consist of dimers of glycosylated polypeptides, linked by a disulfide bond. To date, five different forms (A to E) of the activin subunit have been described on the basis of nucleotide sequences. However, biological activities have only be...
متن کاملHot-Melt Extrusion Technique: A Review
Hot-melt extrusion is one of the most widely applied processing technologies in the plastic, rubber and food industry. Today this technology has found its place in the array of pharmaceutical manufacturing operations. Melt extrusion process are currently applied in the pharmaceutical field for the manufacture of a variety of dosage forms and formulations such as granules, pellets, tablets, supp...
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ژورنال
عنوان ژورنال: Nature
سال: 2000
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35004689