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Приказ резултата 41-50 од 216
Optimization of the active component grinding process and hydrophobization of the obtained powder fire extinguisher / Optimizacija mlevenja aktivne komponente i hidrofobizacija dobijenog sredstva za gašenje požara]
(Beograd : Savez hemijskih inženjera, 2021)
This work presents a grinding process of monoammonium phosphate (MAP) as an active component in a powder fire extinguisher (PFE). The aim was to determine the grinding time for reaching the optimal particle size of MAP ...
The influence of grape pomace substrate on quality characterization of Pleurotus ostreatus —Total quality index approach
(Wiley, 2020)
Total quality index approach was used to reflect the quality of Pleurotus ostreatus mushroom, cultivated on grape pomace (P) as food waste substrate and wheat straw (S), in four different combined ratios: 100P; 80P20S; ...
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 ...
Can a benthic diatom community complement chemical analyses and discriminate between disturbed and undisturbed saline wetland habitats?
(Springer, 2021)
Soda pans are protected in the European
Union as Natura 2000 areas in the category of
‘‘Pannonic saline steppes and marshes’’. There are at
least six soda pans of reference status in Serbia and
only a half have strict ...
Nonacosan-10-ol and n-Alkanes in Leaves of Pinus pinaster
(SAGE Publications Inc., 2020)
In leaf cuticular wax of Pinus pinaster, content of nonacosan-10-ol is high (77.1% on average). n-Alkanes ranged from C18 to C35
with the most dominant C29 (24.8%). The carbon preference index (CPItotal) ranged from 3.1 ...
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 ...
Oxidized humic acids from the soil of heat power plant / Oksidovane huminske kiseline iz toplane
(Serbia : Serbian Chemical Society, 2020)
Humic acids isolated from the soil of a heat power plant (HA-E) contaminated with oil were analyzed by Fourier transform infrared spectroscopy (FTIR). In comparison with a humic acids standard (HA-S), a lack of an intense ...
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 ...
Optimization of injected radiotracer volume for flow rate measurement in closed conduits / Optimizacija zapremine radioaktivnog obeleživača pri merenju zapreminskog protoka u zatvorenim cevovodima
(Belgrade : Association of the Chemical Engineers of Serbia, 2020)
In chemical processes it is essential that the flow in the process is accurately defined. Fluid velocity measurements are important for fluid flow quality performance in flow systems. This study focuses on determination ...
Pinnularia baetica sp. nov. (Bacillarophyceae): Comparison with other panduriform species in the Mediterranean area
(Magnolia Press, 2020)
A new freshwater diatom species Pinnularia baetica sp. nov. is described from two different ponds from the Mediterranean
area: Andalucia (South of Spain) and Lake Livadičko, Serbia. The species is described by observations ...