The apparent viscosity (pseudoplastic viscosity) of mucilage of leucaena seed gum was calculated, based on flow curves, obtamed With multiple point viscometer. Attempts were made to correlate the various rheological properties, describIng the_ overall flow behaviOur of gum, with their concentrations. The relationship between N(exponential constant) and concentration was found to be a zero order...

This article presents the dependence of dynamic temperature viscosity and shear rate for rapeseed oils used as biodegradable lubricant SAE 10W. The studied rheograms show well viscosity. From there is a decrease in with two oils. oil most strongly influenced by compared to 10W oil. rheological behavior mineral was Haake VT 550 viscometer at temperatures between 40 1000C.

A quartz crystal microbalance has been used to monitor the polymer production of a bacterial population in liquid medium. The increasing amount of produced polymer corresponds to an increase in the viscosity of the liquid, which is directly measurable as the fluid contacts the surface of the quartz crystal in the sensor system. This procedure is being developed as a novel method for measuring m...

The velocity of a liquid flowing through the core of a hollow core photonic crystal fiber (driven by capillary forces) is used for the determination of a liquid's viscosity, using volumes of less than 10 nl. The simple optical technique used is based on the change in propagation characteristics of the fiber as it fills with the liquid of interest via capillary action, monitored by a laser sourc...

Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland Institute of Physics ASCR, Na Slovance 2, 182 21 Prague, Czech Republic Centre of Low Temperature Physics, Institute of Experimental Physics SAV, Košice, Slovakia Kapitza Institute for Physical Problems, Kosygina 2, Moscow 119334, Russia Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Prag...