scholarly journals Determination of dynamic surface tension and viscosity of non-Newtonian fluids from drop oscillations

2014 ◽  
Vol 26 (11) ◽  
pp. 113103 ◽  
Author(s):  
Lisong Yang ◽  
Bethany K. Kazmierski ◽  
Stephen D. Hoath ◽  
Sungjune Jung ◽  
Wen-Kai Hsiao ◽  
...  
Keyword(s):  
Surface Tension ◽  
Dynamic Surface Tension ◽  
Newtonian Fluids ◽  
Dynamic Surface

Determination of albumin content in blood serum based on the results of dynamic surface tension

2021 ◽  
Vol 1 (6) ◽  
pp. 68-73
Author(s):  
M. S. Tsarkova ◽  
◽  
I. V. Milaeva ◽  
S. Yu. Zaytsev ◽  
◽  
...  
Keyword(s):  
Surface Tension ◽  
Blood Serum ◽  
Objective Assessment ◽  
Dynamic Surface Tension ◽  
The Body ◽  
Maximum Pressure ◽  
Dynamic Surface ◽  
Good Convergence ◽  
Albumin Content

The blood test allows you to give an objective assessment of the state of health of animals and timely identify changes occurring in the body. To assess the content of albumins in the blood serum, the method of measuring the dynamic surface tension on the VRA-1P device, which works according to the method of maximum pressure in the bubble, was used. Based on the results of the measurements, a mathematical model was proposed, and using the regression analysis method, formulas for determining the concentration of albumins were developed, which showed good convergence with other measurement methods.

scholarly journals Determination of the Stabilization Time of the Solution-Air Interface for Aggregates Formed by NaC in Mixtures with SDS and PEO, Investigated by Dynamic Surface Tension Measurements

Soft ◽  
2014 ◽  
Vol 03 (01) ◽  
pp. 1-10 ◽  
Author(s):  
Grasiele Raupp ◽  
Arlindo C. Felippe ◽  
Tiago Elias Allievi Frizon ◽  
Luciano da Silva ◽  
Marcos Marques da Silva Paula ◽  
...  
Keyword(s):  
Surface Tension ◽  
Dynamic Surface Tension ◽  
Stabilization Time ◽  
Dynamic Surface ◽  
Air Interface

Determination of the dynamic surface tension of liquids from the instability of excited capillary jets and from the oscillation frequency of drops issued from such jets

1978 ◽  
Vol 361 (1705) ◽  
pp. 181-206 ◽  
Keyword(s):  
Surface Tension ◽  
Oscillation Frequency ◽  
Excitation Frequency ◽  
Dynamic Surface Tension ◽  
Dynamic Surface ◽  
Jet Instability ◽  
Resonance Band ◽  
Capillary Jets ◽  
Axisymmetric Disturbances

Three methods were found to measure the dynamic surface tension of liquids. The first uses the growth rates of axisymmetric disturbances on excited capillary jets, the second the oscillation frequency of drops issued from such jets. When the dimensionless wavelength S of jet excitation was in the range 1 < S < S*, where S* corresponds to the wavelength of maximum jet instability, the oscillation frequency of drops could be inferred from the symmetry of the stream of stroboscopically illuminated drops. In the course of these investigations a new phenomenon was found, namely that in the range S > S* the drops do not oscillate freely but resonate the with jet excitation frequency. This explains the failure of previous investigators to determine the oscillation frequency of drops in this range. In this range of S , however, the oscillation frequency of drops equals the resonance band width, which gives the third method for the determination of dynamic surface tension. With the first two methods, the dynamic surface tension of water was determined with better than 1% accuracy in surfaces of less than 1 ms age.

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