Determination of internal mechanical stresses in coatings by a laser interferometry method

1989 ◽  
Vol 32 (10) ◽  
pp. 966-969
Author(s):  
M. L. Trunov ◽  
Yu. B. Gvardionov
Keyword(s):  
Laser Interferometry ◽  
Mechanical Stresses ◽  
Interferometry Method

scholarly journals Analysis of ciprofloxacin and gentamicin diffusion in Proteus mirabilis O18 biofilm by laser interferometry method.

1970 ◽  
Vol 60 (4) ◽  
Author(s):  
Michał Arabski ◽  
Sławomir Wąsik ◽  
Magdalena Zych ◽  
Wioletta Lakomiec ◽  
Wiesław Kaca
Keyword(s):  
Proteus Mirabilis ◽  
Antibacterial Agents ◽  
Interaction Model ◽  
Laser Interferometry ◽  
Bacterial Biofilms ◽  
Physical Sciences ◽  
Gel Structure ◽  
Interferometry Method ◽  
New Applications

Laser interferometry is a measurement technique used in physical sciences, with a potential for new applications in microbiology. Our previously studies, focused on the quantitative analysis of antibiotics diffusion through membranes or their releasing from gel structure, indicate that this method might be useful in analysis of substances diffusion across the bacterial biofilms. As antibiotic - biofilm interaction model, we tested above method for determination of ciprofloxacin or gentamicin diffusion through Proteus mirabilis O18 biofilm. Laser interferometry analysis of antibiotics diffusion showed that the amount of ciprofloxacin transported through mature biofilm is 1.9 times higher than gentamicin. It was correlated with lower level of gentamicin in compare to the level of ciprofloxacin in biofilm, which amounts were predicted in biofilm during diffusion process by laser interferometry method. We suggest that the analysis of antibiotic diffusion in biofilm might by helpful in evaluation of effectiveness of antibacterial agents.

Laser interferometry in the determination of electron concentration in plasma jets

1967 ◽  
Vol 7 (2) ◽  
pp. 143-144 ◽  
Author(s):  
A. A. Ovsyannikov ◽  
L. S. Polak ◽  
R. E. Rovinskii ◽  
A. G. Rozanov ◽  
N. N. Shvindt
Keyword(s):  
Electron Concentration ◽  
Laser Interferometry ◽  
Plasma Jets

scholarly journals Testing Sorption Properties of Halloysite by Means of the Laser Interferometry Method

2015 ◽  
Vol 37 (1) ◽  
pp. 43-47
Author(s):  
Sławomir Wąsik ◽  
Michał Arabski ◽  
Karolina Maciejec ◽  
Grażyna Suchanek ◽  
Anna Świercz
Keyword(s):  
Concentration Field ◽  
Laser Interferometry ◽  
Membrane System ◽  
Absorption Capacity ◽  
Sorption Properties ◽  
Concentration Profiles ◽  
Adsorbed Substance ◽  
Interferometry Method ◽  
Set Up ◽  
Kinetics Of

The objective of the present study has been to test the laser interferometry method in terms of its usability for investigating sorption properties of minerals. This method was used to test the absorption capacity of halloysite with reference to glucose, which is often found in industrial wastewater and whose excess can disturb the environmental eco-balance. The sorption capacity of halloysite was thus determined indirectly, basing on the comparison of concentration profiles as well as time characteristics of glucose quantities released from the control solution and from the solution incubated with a halloysite adsorbent. An analysis of glucose diffusion was conducted in a two-chamber membrane system. On the basis of the obtained concentration profiles, the evolution of the concentration field was determined; so were the removal efficiency (%) and the amount of glucose adsorbed at equilibrium (qe, mg/g). The obtained results confirm good sorption properties of halloysite with respect to the investigated substance as well as usability of the method for this kind of investigations. The presented tests suggest that the measurement set-up can be optimised in such as way that visual rendering and testing the kinetics of the adsorbed substance direct release from the studied material become possible.

Determination of local mechanical stresses in dyed poly(ethylene terephthalate) by IR spectroscopy

1979 ◽  
Vol 30 (5) ◽  
pp. 686-688
Author(s):  
D. Saidov ◽  
Kh. Khabibulloev ◽  
R. M. Marupov ◽  
V. I. Dasturi ◽  
M. S. Umarova
Keyword(s):  
Ir Spectroscopy ◽  
Ethylene Terephthalate ◽  
Mechanical Stresses ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

The determination of mechanical stresses using Rayleigh surface waves excited by a magnetoacoustic transducer

2014 ◽  
Vol 50 (12) ◽  
pp. 701-707 ◽  
Author(s):  
A. A. Khlybov ◽  
A. L. Uglov ◽  
V. M. Rodyushkin ◽  
Yu. A. Katasonov ◽  
O. Yu. Katasonov
Keyword(s):  
Surface Waves ◽  
Mechanical Stresses ◽  
Rayleigh Surface Waves

Determination of mechanical stresses in aboveground pipelines

2009 ◽  
Vol 45 (9) ◽  
pp. 623-626
Author(s):  
V. A. Popov ◽  
G. S. Korzunin
Keyword(s):  
Mechanical Stresses
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