نتایج جستجو برای: fine grinding

تعداد نتایج: 117099  

Journal: :Journal of the Research Association of Powder Technology, Japan 1969

Journal: :CIRP Annals 2021

The automotive industry is undergoing a major transformation driven by regulations and fast-paced electrification. A critical analysis of technological trends associated requirements for powertrain components carried out in close collaboration with – covering the perspectives OEMs, suppliers, machine builders. main focus to review state art regard grinding, dressing, texturing fine-finishing te...

Journal: :Methods and findings in experimental and clinical pharmacology 1998
J C Chaumeil

For poorly soluble drugs, the digestive absorption depends on their rate of dissolution. Decreasing the particle size of these drugs improves their rate of dissolution. Fine grinding mills are use to micronize powders: either jar mills or fluid energy mills. Theses processes were applied to griseofulvin, progesterone, spironolactone and diosmin. For each drug, micronization improved their diges...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1987

2011
F Bridges S Medling B Balaban

We present time-lapsed microscopy and EXAFS/XANES data on size selected ground ZnS:Cu,Cl and ZnS:Cu,Mn,Cl phosphors to probe long standing problems in using these phosphors in high brightness applications. The time-lapsed study shows that many of the individual emission centers on each particle degrade via large step decreases while < 50% have a monotonic decrease. These large steps suggest a b...

2016
Erol Uman Maxwell Colonna-Dashwood Lesley Colonna-Dashwood Matthew Perger Christian Klatt Stephen Leighton Brian Miller Keith T. Butler Brent C. Melot Rory W. Speirs Christopher H. Hendon

Coffee is prepared by the extraction of a complex array of organic molecules from the roasted bean, which has been ground into fine particulates. The extraction depends on temperature, water chemistry and also the accessible surface area of the coffee. Here we investigate whether variations in the production processes of single origin coffee beans affects the particle size distribution upon gri...

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