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Приказ резултата 11-20 од 26
Modeling the biodiesel production using the wheat straw ash as a catalyst / Pepeo pšenične slame kao katalizator u proizvodnji biodizela
(Belgrade : Association of the Chemical Engineers of Serbia, 2021)
Wheat straw ash (WSA) was investigated as a new catalyst in biodiesel production from sunflower oil. The catalyst was characterized by temperature-programmed decomposition, X-ray powder diffraction, Hg porosimetry, N2 ...
Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania
(Parlar Scientific Publications, 2021)
The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition ...
DNA protective activity of triterpenoids isolated from medicinal mushroom Fomitopsis betulina / DNK protektivna aktivnost triterpena izolovanih iz medicinske gljive Fomitopsis betulina
(Belgrade : Serbian Chemical Society, 2021)
Eleven 31-methylenlanostane triterpenoids, i.e., seven 21- and four 26-oic acids, as well as a lupane triterpenoid betulin, isolated from the fruiting bodies of the mushroom Fomitopsis betulina, were tested for in vitro ...
Early-Middle Miocene paleoenvironmental and paleoclimate changes in the Toplica Basin (Serbia) inferred from plant biomarkers, biochemical and elemental geochemical proxies
(Central Library of the Slovak Academy of Sciences, 2021)
The study investigates the influence of alluvial-lacustrine processes and paleoclimate variations on the distribution of terpenoids and unsubstituted Polycyclic Aromatic Hydrocarbons (PAHs). The XRF, ICP-MS, Rock-Eval, and ...
Amide–π interactions in active centres of superoxide dismutase / Amid-–π interakcije u aktivnom centru superoksid-dismutaza
(Belgrade : Serbian Chemical Society, 2021)
PaiIn this work, the influence of amide–π interactions on stability and properties of superoxide dismutase (SOD) active centres was analysed. In the data set of 43 proteins, 5017 amide–π interactions were observed, and ...
Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt % TMAH / Kontrolisan raspored integrisanih prepreka u silicijumskim mikrokanalima nagrizanim u 25 mas.% rastvoru tetrametilamonijum hidroksida
(Association of Chemical Engeneers of Serbia, 2021)
In this paper, fabrication of silicon microchannels with integrated obstacles by using 25 wt.% tetramethylammonium hydroxide (TMAH) aqueous solution at the temperature of 80 C is presented and ...
Investigation of the impact of mechanical activation on synthesis of the MgO-TiO2 system / Ispitivanje uticaja mehaničke aktivacije smeše MgO-TiO2 na sintezu magnezijum-titanata
(Belgrade : Association of the Chemical Engineers of Serbia, 2021)
In this study, a mixture of magnesium oxide and titanium dioxide was mechanically activated in order to investigate the possibility of mechanochemical synthesis of magnesium titanate. Mechanical activation was performed ...
Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt
(Belgrade : ESG, 2021)
The possibility of electrochemical underpotential deposition of aluminium onto palladium from equimolar AlCl3+NaCl melts at temperatures between 200 ° and 300 °C was investigated. Electrochemical techniques used were cyclic ...
Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System
(Brazil : SCI FLO, 2021)
Phase diagram of the Bi-Ce-Ge ternary system has been investigated experimentally and thermodynamically extrapolated by using Pandat software. Experimental results were obtained using differential thermal analysis (DTA), ...
Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation
(Serbia : Electrochemical Science Group, 2021)
Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and ...