Results 11 to 20 of about 23,537 (218)
New records of arthropods from the priority Natura 2000 habitats in Estonian coastal areas [PDF]
The ground-dwelling arthropod fauna of Estonia has been unevenly studied, and there are significant gaps of knowledge regarding microarthropods. Our study focused on alvars and both coastal and wooded grasslands within the Natura 2000 network in Estonia.
Kaarel Sammet +3 more
doaj +3 more sources
Effect of gases on crystallization of heat-resistant chromium steels
It has been shown that the main influence on the crystallization of heat‑resistant chromium steels is hydrogen. It is a demodifying element of the casting structure.
E. I. Marukovich +2 more
doaj +1 more source
Structure – dynamic effects in metal melts, glasses and nanocrystals in dependence of temperature [PDF]
The researchers have conducted a comprehensive analysis of both the original material characteristics and the available information on phase-structural transformations during cooling, glass transition and crystallization of melts, with detailed tracking ...
E.D. Kurbanova, V.A. Polukhin
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Effect of gases released during solidification of castings on microstructure of alloys
Thermodynamic calculation of formation of spherical gas bubbles different in water – wetting on flat surfaces by metal melt is made. This process consists of two stages.
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source
Titanium-manganites of LaLi2TiMnO6 and LaNa2TiMnO6 were synthesized by the methods of ceramic technology from the oxides of lanthanum, titanium (IV), manganese (III), and the carbonates of lithium and sodium. The types of their syngony and the parameters
Bulat Kunurovich Kasenov +6 more
doaj +1 more source
Medicinal Plants in Semi-Natural Grasslands: Impact of Management
Semi-natural grasslands (SNG) are valuable for their high biodiversity, cultural and landscape values. Quantitative information about medicinal plants (MP) in SNG facilitates the evaluation of ecosystem services of these habitats.
Marika Kose +2 more
doaj +1 more source
Karl Ristikivi Vahemere-ruum / Karl Ristikivi’s Mediterranean space
Karl Ristikivi (1912–1977) was a well-travelled Estonian writer whose imaginative spatial images are based equally on landscapes he actually experienced and on journeys he perhaps traced on a map with his finger and followed in his imagination.
Brita Melts
doaj +1 more source
Configurons: Thermodynamic Parameters and Symmetry Changes at Glass Transition
Thermodynamic parameters of configurons – elementary excitations resulting from broken bonds in amorphous materials – are found from viscosity-temperature relationships.
Michael I. Ojovan
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Electrochemical reduction mechanism of several oxides of refractory metals in FClNaKmelts
The dissolution characteristics and electrochemical reduction mechanism of oxides of refractory metals ZrO2, HfO2 and MoO3 in NaCl-KCl-NaF melts are studied.
Li Hui +6 more
doaj +1 more source
Electrochemistry of silicon in chloro-fluoride and carbonate melts [PDF]
The electrochemical behavior of K2SiF6 in chloro-fluoride melts and that of SiO2 in carbonate melts has been studied. Silicon, titanium silicides, boron silicide and ternary compounds Ti-Si-B have been deposited from chloro-fluoride melts.
Devyatkin S.V.
doaj +1 more source

