Search Results - "Khoma, M. M."

Dyspnoea improves following composite repair of giant paraoesophageal hernia by Khoma, O, Wong, Nlj, Mugino, M, Khoma, M J, Van der Wall, H, Falk, G L

“…Paraoesophageal hernias (PEH) are often symptomatic and can lead to life-threatening complications such as volvulus and ischaemia. Dyspnoea is one of the most…”
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Mechanisms of Pitting Corrosion of Austenitic Steels of Heat Exchangers in Circulating Waters and its Prediction by Narivs’kyi, O. E., Subbotin, S. O., Pulina, T. V., Leoshchenko, S. D., Khoma, M. S., Ratska, N. B.

“…Mathematical models of the dependence of the critical pitting temperature (CPT) of AISI 304, AISI 321, 12Kh18N10T and 08Kh18N10 steels on their chemical…”
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Corrosion-Mechanical Properties and Susceptibility to Hydrogenetaion of Pipe Steel in the Presence of Carbon Dioxide Gas and Hydrogen Sulphide in Environment by Khoma, M. S., Pokhmurskii, V. I., Chuchman, M. R., Vasyliv, Kh. B., Ivashkiv, V. R., Ratska, N. B.

“…The effect of different concentrations of CO 2 and H 2 S in a chloride-acetate solution on corrosion-mechanical properties of 17G1S-U steel was studied. In a…”
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Modeling of Pitting of Heat Exchangers Made of 18/10 Type Steel in Circulating Waters by Narivskyi, O. E., Subbotin, S. O., Pulina, T. V., Leoshchenko, S. D., Khoma, M. S., Ratska, N. B.

“…Mathematical models have been developed which describe the dependences of critical pitting temperatures of 12Kh18N10T, 08Kh18N10, AISI304 and AISI321 steels in…”
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Effect of Temperature and Pressure on Corrosion and Hydrogenation of Steel in Chloride-Acetate Environment with Different Concentrations of Hydrogen Sulfide and Carbon Dioxide by Pokhmurskii, V. I., Khoma, M. S., Chuchman, M. R., Vasyliv, Kh. B., Ratska, N. B.

“…Low-carbon pipe steel’s corrosion rate and hydrogenation in a chloride-acetate solution with CO 2 /H 2 S mixtures at different temperatures and pressures were…”
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Corrosion and Hydrogenation of 17G1S-U Steel in Hydrogen-Sulfide Media of Different Concentrations by Pokhmurskyi, V. І., Khoma, M. S., Chuchman, M. R., Datsko, B. M.

“…We study corrosion, hydrogenation, and mechanical properties of 17G1S-U steel in chloride-acetate solutions with hydrogen-sulfide concentrations of 25, 100,…”
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Methodological Features of the Study of Hydrogen Permeation Through a Steel Membrane from an Acid Environment by Khoma, M. S., Ivashkiv, V. R., Chuchman, M. R., Ratska, N. B., Vasyliv, Kh.B.

“…The composition of the working environments was chosen for determining the parameters of hydrogen diffusion through a 20 steel membrane by the…”
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Features of Formation of Sulphide Films on Surface of 17Г1СУ Steel in Environments Containing Hydrogen Sulphide by Khoma, M. S., Ratska, N. B., Vasyliv, Kh. B., Datsko, B. M.

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Influence of heat treatment on tribocorrosion properties of Ni-B composite coatings by Khoma, M., Mardarevych, R., Vynar, V., Vasyliv, Сh., Kovalchyk, Yu

“…Various surface protection technologies, in particular, electrochemical, are used to increase the wear and corrosion resistance of steels and alloys. Composite…”
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DECELERATING FACTORS OF THE LIBERAL-DEMOCRATIC TRANSFORMATIONS IN LATVIA by Khoma, Nataliya M.

“…The problem of the quality of Latvia’s democracy during the period of EU membership (2004-2020) is studied. Latvia’s progress / regression in strengthening the…”
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PROBLEMS OF TOLERANCE/INTOLERANCE IN THE POLITICAL SPHERE OF ESTONIA AND LATVIA by Khoma, Nataliya M.

“…The aim of the article is to study the problems of intolerance in the Young Democracies of the EU on the example of Estonia and Latvia. The article is prepared…”
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Influence of the Structure of Carbon Steels on the Corrosion, Hydrogenation, and Corrosion Cracking in Hydrogen-Sulfide Media by Khoma, M. S., Ivashkiv, V. R., Halaichak, S. A., Chuchman, M. R., Vasyliv, Kh. B.

“…We study the influence of the structure of carbon steels on corrosion, hydrogenation, and corrosion cracking in NACE solution. The corrosion and hydrogenation…”
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Influence of cathode and anode processes on tribocorrosion of aluminium alloy AA2024 in acid rain by Khoma, M., Vynar, V., Vasyliv, Сh., Dykha, A., Kovalchyk, Yu

“…The nature of cathodic processes during the frictional interaction of aluminum alloy with ball corundum in the conditions of reciprocating motion has been…”
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Oxidation-Reduction Processes on Armco Iron in Sulfide-Containing Alkaline Media by Khoma, M. S., Holovei, S. A., Ivashkiv, V. R.

“…The oxidation-reduction reactions running on glass-graphite and Armco iron in sulfide and alkaline solutions are studied by the method of cyclic voltammetry…”
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Efficiency of Protection Methods Against Corrosion-Fatigue Damage of D16T Aluminum Alloy by Pokhmurs’kyi, V. I., Khoma, M. S., Vynar, V. A., Kornii, S. A., Dykha, O. V., Rats’ka, N. B.

“…The results of corrosion-fatigue studies on the D16T aluminum alloy after its protection by different methods are presented. The effects of cathodic…”
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Specific Features of Corrosion and the Microelectrochemical Heterogeneity of 45 and U8 Steels in Hydrogen-Sulfide Media by Khoma, M. S., Rats’ka, N. B., Holovei, S. А., Chuchman, М. R.

“…We analyze the character of corrosion of 45 and U8 steels with ferrite–pearlite (pearlite), sorbite, troostite, and martensite structures in hydrogen-sulfide…”
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Influence of the External Polarization Potential on the Tribocorrosion Behavior of 08Kh18N10T Steel by Pokhmurs’kyi, V. I., Khoma, M. S., Vynar, V. A., Vasyliv, Kh. B., Rats’ka, N. B.

“…We study the influence of external polarization with different potentials on the tribocorrosion behavior of 08Kh18N10T steel in contact with a corundum ball in…”
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Protective Properties of Aluminum-Based Coatings in Hydrogen-Sulfide Media by Khoma, M. S., Chumalo, H. V., Kharchenko, E. V., Datsko, B. M., Ivashkiv, V. R.

“…We study the corrosion and corrosion-mechanical properties of 20 steel with electric-arc sprayed aluminum coatings in chloride- and hydrogen-sulfide-containing…”
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Corrosion and Hydrogenation of 09G2S Steel in Hydrogen-Sulfide Media at Elevated Temperatures and Pressures by Khoma, M. S., Chuchman, M. R., Antoshchak, I. M., Ivashkiv, V. R., Datsko, B. M., Lychkovs’kyi, E. I.

“…We study the influence of the partial pressure of hydrogen sulfide (1–5 atm) and temperature (25–120°C) on the corrosion behavior of 09G2S steel in model…”
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Problems of fracture of metals in hydrogen-sulfide media by Khoma, M. S.

“…We consider the principal types of fracture of steels in hydrogen-sulfide media and the methods used for their investigation. The analysis of the available…”
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