Identification of parameters of mathematical model non-isothermal processes of adsorption surface-active substances in a porous medium oil-bearing rock

2012 ◽  
Author(s):  
Goshgar Aliyev ◽  
Chingiz Ibrahimov ◽  
Eldar Mammadov
Keyword(s):  
Mathematical Model ◽  
Porous Medium ◽  
Identification Of Parameters ◽  
Adsorption Surface ◽  
Surface Active ◽  
Isothermal Processes ◽  
Active Substances

scholarly journals On the correctness of one model of the Stefan-Type filtration theory

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Mathematical Model ◽  
Original Problem ◽  
Oil And Gas ◽  
Filtration Theory ◽  
Oil And Gas Fields ◽  
Surface Active ◽  
Gas Fields ◽  
Limiting Case ◽  
The Mathematical Model ◽  
Active Substances

In this paper a mathematical model of filtration theory with phase transitions is investigated. When using surface-active substances (surfactants) for the development of oil and gas fields in the reservoir occur sorption processes at the interfaces of individual phases (surfactants and oil, or surfactants and soil). In real processes, a finite time is required for achievement equilibrium. Therefore considering the mathematical model was called the mathematical model with phase relaxation. The solvability of the mathematical model, the limiting transition in relaxation time are investigated. It is proved that in the limiting case, the original problem is a problem of Stefan type.

scholarly journals Formation of a surfactant adsorption layer on microroughnesses of friction surfaces

2021 ◽  
pp. 38
Author(s):  
Viktor Kosolapov
Keyword(s):  
Friction Surface ◽  
Adsorbed Layer ◽  
Surface Active Substance ◽  
Surfactant Adsorption ◽  
Adsorption Surface ◽  
Surface Active ◽  
Friction Surfaces ◽  
Thermal Oscillations ◽  
Active Substances ◽  
Working Liquid

Formation of an adsorption surface layer on microneralities of friction surfaces. The model of interaction of the molecule of surface-active substance with the microasperity of friction surface has been given. It has been found that the distance of interaction and the thickness of an adsorbed layer of surface-active substances depend on value of a field of an adsorbing surface and energy of thermal oscillations of molecules of surface-active. It has been shown that the distance of interaction and the thickness of an adsorbed layer of surface-active substances decrease at magnification of temperature of working liquid.

Surface Active Substances in the Chinchilla Tubotympanum: a Biochemical Study

1991 ◽  
Vol 111 (3) ◽  
pp. 1097-1104
Author(s):  
James Coticchia ◽  
Frederick Heiselman ◽  
Raouf Gharbo ◽  
Thomas Demaria ◽  
David Lim
Keyword(s):  
Biochemical Study ◽  
Surface Active ◽  
Active Substances

Influence of surface active substances on AKD sizing

2005 ◽  
Vol 20 (2) ◽  
pp. 253-258 ◽  
Author(s):  
Elisa Zeno ◽  
Bruno Carré ◽  
Evelyne Mauret
Keyword(s):  
Surface Active ◽  
Active Substances

scholarly journals The possible role of the Surface Active Substances (SAS) in the airborne transmission of SARS-CoV-2

2021 ◽  
pp. 111215
Author(s):  
Irena Ciglenečki ◽  
Palma Orlović-Leko ◽  
Kristijan Vidović ◽  
Viša Tasić
Keyword(s):  
Airborne Transmission ◽  
Surface Active ◽  
Active Substances

The kinetics of the penetration of some representative anthelmintics and related compounds into Ascaris lumbricoides var. suis

Parasitology ◽  
1949 ◽  
Vol 39 (3-4) ◽  
pp. 281-290 ◽  
Author(s):  
A. R. Trim
Keyword(s):  
Ascaris Lumbricoides ◽  
Homogeneous Layer ◽  
Outermost Layer ◽  
Basic Group ◽  
Rate Of Penetration ◽  
Surface Active ◽  
Main Barrier ◽  
Kinetics Of ◽  
Related Compounds ◽  
Active Substances

1. The rate of penetration of some representative drugs into Ascaris lumbricoides var. suis has been measured.2. The series of 4-n-alkyl resorcinols shows a typical homologous series effect.3. l-Nicotine penetrates relatively slowly.4. Its rate of penetration is greatly influenced by the extent of dissociation of its methyl pyrrolidine basic group.5. The rate of penetration of nicotine is greatly accelerated in the presence of some surface active substances.6. Chloroform is the most rapidly penetrating substance studied, and its penetration is not significantly influenced by the presence of proteins, carbohydrates and fats and their products of digestion.7. An analysis of the experimental results shows that the outermost layer of the cuticle of Ascaris is probably the main barrier to penetration. It behaves as if it were a thin; homogeneous layer of lipoid.8. The significance of these results in the study of anthelmintics is assessed.

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