Determination of the Thickening Mechanism of a Hydrophobically Modified Alkali Soluble Emulsion Using Dynamic Viscosity Measurements

2000 ◽  
pp. 338-350
Author(s):  
C. M. Miller ◽  
K. R. Olesen ◽  
G. D. Shay
Keyword(s):  
Dynamic Viscosity ◽  
Viscosity Measurements ◽  
Hydrophobically Modified

scholarly journals Determination of rheological behaviour of wine lees

2015 ◽  
Vol 29 (3) ◽  
pp. 307-311 ◽  
Author(s):  
Jaromír Lachman ◽  
Kazimierz Rutkowski ◽  
Petr Trávníček ◽  
Tomáš Vítěz ◽  
Patrik Burg ◽  
...  
Keyword(s):  
Dynamic Viscosity ◽  
Rheological Behaviour ◽  
Volatile Acid ◽  
Second Phase ◽  
Temperature Hysteresis ◽  
Chemical Background ◽  
Rate Test ◽  
Red Grape ◽  
Increasing Temperature

Abstract This study deals with the rheological properties of wine lees. Samples of wine lees of the Saint Laurent variety were used in this experiment. The investigated wine lees arose in the process of production red grape wine in 2013 (Czech Republic). At first, the chemical background was determined. The chemical background includes the following chemical parameters: total acidity, pH, alcohol content, reduced sugars, free SO2, total SO2, and volatile acid. In the second phase of the study, physical properties were determined. Specifically, a sample of wine lees was subjected to rheological tests. These tests consisted in determination of dependence of dynamic viscosity on the temperature, hysteresis loop tests, dependence of dynamic viscosity on the time and step-down in the shear rate test. The experiment demonstrated that the dynamic viscosity increased with increased temperature – this phenomenon is caused by thermolabile proteins – and the wine lees has rheopectic behaviour; the degree of rheopexy was found to rise with the increasing temperature.

scholarly journals Determination of Dynamic Viscosity in Samples of Blood Plasma and Hemoglobin Solution Using Nuclear Magnetic Resonance

2019 ◽  
Vol 4 (2) ◽  
pp. 25
Author(s):  
Yulianela Mengana Torres ◽  
Manuel Arsenio Lores Guevara ◽  
Juan Carlos García Naranjo ◽  
Beatriz Taimy Ricardo Ferro ◽  
Lidia Clara Suárez Beyries ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Blood Plasma ◽  
Dynamic Viscosity ◽  
Hemoglobin Solution ◽  
Nuclear Magnetic
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