منابع مشابه
Accelerated Drying of Plaster Casts with a Microwave Oven
Calcined gypsum (calcium sul phate hemihydrate, CaS04 1/2H20), commonly known as plas ter of Paris, is used extensively in forming casts to immobilize parts of the body and for making molds used in the manufacture of orthotic and prosthetic devices. Plaster models and casts have several advantages, and a few disadvantages. Widely available, plaster is inert, sufficiently stable dimensionally,...
متن کاملExperimental and Theoretical Investigation of Moisture Dynamics in Intermittent Drying of Rough Rice
Intermittent drying is a satisfactory technique for drying of heat sensitive grains especially rough rice. This method consists of two separate stages applied intermittently: drying and tempering. In this work, intermittent drying of rough rice is investigated both theoretically and experimentally. In order to characterize this process; a multi-scale model consisting of macroscopic and microsco...
متن کاملDynamics of cracking in drying colloidal sheets.
Colloidal dispersions are known to display a fascinating network of cracks on drying. We probe the fracture mechanics of free-standing films of aqueous polymer-particle dispersions. Thin films of the dispersion are cast between a pair of plain steel wires and allowed to dry under ambient conditions. The strain induced on the particle network during drying is relieved by cracking. The stress whi...
متن کاملOn the Drying Dynamics in Biofilters
To a large extent the performance of biofilters relies on the presence of suitable amounts of water in order to provide conditions needed for microbiological degradation of pollutants to take place. In many cases breakdown of filtration performance occurs due to inappropriate water contents in the filter material. The present study focuses on the drying dynamics within such filters, which are m...
متن کاملDynamics of fracture in drying suspensions.
We investigate the dynamics of fracture in drying films of colloidal silica. Water loss quenches the nanoparticle dispersions to form a liquid-saturated elastic network of particles that relieves drying-induced strain by cracking. These cracks display intriguing intermittent motion originating from the deformation of arrested crack tips and aging of the elastic network. The dynamics of a single...
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ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 2016
ISSN: 0009-2509
DOI: 10.1016/j.ces.2016.04.012