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Wyszukujesz frazę "Rimár, Miroslav" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Research of microstructure of molybden doped weldings of oil and gas pipelines
Autorzy:
Pandova, Iveta
Rimar, Miroslav
Makarenko, Valery
Vinnikov, Yuri
Mangura, Andrey
Zaborowski, Tadeusz
Aloshyn, Valentyn
Powiązania:
https://bibliotekanauki.pl/articles/2037421.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
structure
fracture
corrosion
crystal lattice
non–metallic inclusions
Opis:
Still existing scientific, technical and technological developments to improve the quality of welded joints of metal pipe structures contain contradictions and uncertainty about the effects of alloying elements, such as molybdenum, mechanical and visco-plastic properties, as well as metallographic component joints. All this indicates the need for a systematic study of these problems for the development of rational metallurgical and technological measures to significantly improve the technological and corrosion-mechanical properties of weld metal. Metallographic studies, using laboratory equipment with high identifying ability, found that the doping of weld metal with molybdenum in the amount of 0.2-0.4% causes fragmentation of ferrite-pearlite structure, including carbides Mn and Fe, and also reduces the number and size of non-metallic inclusions – sulfides, oxides and silicates. Moreover, non-metallic inclusions have a dispersed appearance, which promotes plasticization of the structure, which directly increases the viscous-plastic characteristics and resistance of the metal joints to crack formation. Based on the results of metallographic research, the optimum content in the weld metal of the alloyed element – molybdenum, which is 0.2-0.4%, is determined.
Źródło:
Management Systems in Production Engineering; 2021, 4 (29); 274-279
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Evolution of Natural Gas Prices in EU Countries and their Impact on the Country’s Macroeconomic Indicators
Autorzy:
Liptáková, Erika
Rimár, Miroslav
Kizek, Ján
Šefčiková, Zuzana
Powiązania:
https://bibliotekanauki.pl/articles/2051702.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
natural gas
gas prices components
correlation
econometric model
HICP
Harmonised Index of Consumer Prices
gazu ziemnego
cena gazu
korelacja
model ekonometryczny
Opis:
In the article, the authors characterize the current European market with natural gas, describing differences in prices for households and prices for companies from the point of view of individual components, where they focus more on taxes, levies and fees. The article further deals with the possible impact of the price of natural gas on the country's economy, more specifically, the correlation with inflation, unemployment and interest rates. The main aim of the authors is to establish an appropriate econometric model, which describes the impact of the price of natural gas together with the unemployment rate and interest rates on the inflation of the country. The price of natural gas, of this strategic raw material, is one of the factors that can influence the processes for low-carbon technologies or more precisely, the process of EU decarbonisation and with it the associated amount of CO2 emissions.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 2; 255-273
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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