Food includes a wide range of biological materials with diverse rheological character. They are mostly a mixture of different structures previously treated in this book: emulsions, suspensions, foams, gels, solutions and melts. This means that the food rheologist deals with complex fluids which often are substantially inhomogeneous. The variability in the biological food systems is large in con...

Erythrocyte deformability was formerly measured by its contribution to whole blood viscosity. It is now more commonly measured by filtration of erythrocytes through, or aspiration into, pores of 3-5 microns diameter and by the measurement of shear induced erythrocyte elongation using laser diffractometry. Recent improvements in the technology for erythrocyte filtration have included the removal...

1. A modified falling ball viscometer (rolling ball viscometer) for blood and other humors is presented. It is capable of easily measuring flow properties at several stresses, as is required to define satisfactorily the properties of anomalous flow systems. At high shearing stresses, apparent specific viscosity values of 2.5 + are observed, corresponding to 2.2 +/-0.2 reported as possible with ...

This chapter concerns the flow behaviour of polymeric liquids. This is a short introduction to the variety of behaviour observed in these complex fluids. It is addressed at the level of a graduate student, who has had exposure to basic fluid mechanics. The contents provide only a broad overview and some simple physical explanations to explain the phenomena. For detailed study and applications t...

background: the dispersed phase volume fraction plays key role in oil-in-water emulsion stability by different mechanisms like partial flocculation, depletion flocculation and bridging flocculation. since the mentioned mechanism is affected by emulsifier concentration presented in system, the major aim of this study was to investigate the effect of dispersed phase volume fraction on physical st...

handling of endodontic sealers is greatly dependent on their elasticity and flow ability. we compared the viscoelastic properties of three root canal sealers.ah plus (dentsply, de trey, konstanz, germany), endofill (dentsply hero, petrópolis, rio de janeiro, brazil) and ah26 (dentsply, de trey, konstanz, germany) were mixed according to the manufacturers' instructions. the resulted pastes were ...