In this study, a computational model which simulates the growth of crystalline deposits from dripping salt solution is developed and validated. This problem is of interest to the nuclear industry where the morphology of deposited material impacts on its associated criticality risk. An existing model for simulating geological-stalagmite formations is adapted to the case of dripping salt-solution...

Expressions to obtain composition shifts due to capillarity are presented when the chemical potential shifts of the precipitate phase are taken into account. These are applied to calculate the precipitate coarsening kinetics in multicomponent systems, showing dependence on the solution thermodynamics followed by the continuous phase. 2002 Published by Elsevier Science Ltd. on behalf of Acta Mat...

In the repeated fractionation of the lipoid constituents of the tubercle bacillus, Anderson"' obtained a substance which he called phthiocerol. This material formed a part of the fraction called the "purified wax," and after separation and purification it was found to be an optically active higher alcohol with the formula C35H7303. At room temperature it is a white crystalline material with a m...

An anisotropic nonlinear crystal mechanics model is developed for a class of ductile aluminum alloys, with the intent of relating microscopic features and properties to performance of the alloys deformed at high strain rates that may arise during impact and blast events. A direct numerical simulation of dynamic tensile deformation of an aluminum polycrystal demonstrates a tendency for shear loc...

cyclohexylidine-ammonium-2-aminocyclohexyline-l-cyclohexee-l- dithiocarboxylate (cccd) is employed for the gravimetric determination of ni (ii). in neutral or ammoniacal solutions, the metal forms a violet precipitate with the reagent which can be weighed as ni (c13h18ns2)a2f ter drying at 115 - 120?c using this procedure, the nickel content of steel samples can also be determined accurately. t...

blood samples were collected from 20 healthy miniature caspian horses at 37 °c. isolation of cryoglobulin was performed based on a standard method in present study. harvested sera were kept at 4 °c for two hours and then examined for cryoglubolin. four serum samples containing precipitate suspicious of containing cryoglobulin were selected. subsequently serum protein electrophoresis was perform...

Chemical studies of rhodanese (thiosulfate : cyanide sulfurtransferase, EC 2.8.1.1) in this laboratory have prompted the development of a modified procedure for preparing the crystalline enzyme. The new method, which is based on the earlier procedure of S6rbo (1) as modified by Westley et al. (2-4), permits isolation in apparently monodisperse form of nearly 50% of the total rhodanese activity ...