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Приказ резултата 61-70 од 1894
Kinetics of NiO and NiCl2 hydrogen reduction as precursors and properties of produced Ni/Al2O3 and Ni-Pd/Al2O3 catalysts
(Hindawi Limited, 2015)
The objects of this investigation were the comparative kinetic analysis of the NiO and NiCl2 reduction by hydrogen during an induction period and elimination of the calcination during the synthesis of Ni/Al2O3 catalysts. ...
Impact of pharmaceutical levels in untreated wastewater on Belgrade river water quality
(Society of Physical Chemists of Serbia, 2021)
In the city of Belgrade, raw sewage is discharged directly into the Sava and the Danube rivers affecting the quality of river water. To determine the level of this impact, eight frequently used and detected pharmaceuticals ...
Određivanje veštačkog zaslađivača neotama u rečnim sedimentima / Determination of artificial sweetener neotame in river sediments
(Beograd : Srpsko hemijsko društvo, 2019)
Veštački zaslađivači predstavljaju emergentne zagađujuće materije u životnoj sredini. Decenijama se koriste kao aditivi u ishrani i farmaceutskim proizvodima zbog čega su široko rasprostranjeni u prirodnim vodama usled ...
Sinhronizacija mernih podataka u bežičnim senzorskim mrežama
(Društvo za ETRAN, 2022)
Početkom dvadesetprvog veka, unapređenje a posebno pojeftinjenje mikroelektronskih komponenti dovelo je do značajne ekspanzije bežičnih tehnologija. Često imamo
potrebu da fizički odvojeni uređaji koriste istu (odnosno, ...
Stabilnost frekvencije kvarcnih oscilatora
(Društvo za ETRAN, 2022)
Oscilatorna kola su neizbežni deo praktično svih elektronskih uređaja. Najčešće se koriste kola na bazi kvarcnih kristala. Prikazan je proces proizvodnje i princip rada kvarcnih oscilatora, kao i podele kristala i oscilatornih ...
Raw kaolinitic–illitic clays as high-mechanical-performance hydraulically pressed refractories
(Springer Science and Business Media B.V., 2022)
The usage possibility of 19 composites of raw refractory clays from Serbia containing approximately 53.29% of SiO2 and 26.73% of Al2O3 is presented. The sum of fluxing oxides was 57.74%, while these materials contained 32% ...
Effect of different reaction parameters on lipase-catalyzed esterification of naringin and esculin
(Faculty of Technology, University of Banja Luka, 2018)
Fatty acid flavonoid esters are antioxidants with high potential for food, cosmetic and pharmaceutic industry. However, their application is still not wide-spread due to low efficiency of traditional chemical esterifications, ...
Procena ekotoksikološkog rizika veštačkih zaslađivača saharina i sukraloze u rečnoj vodi na teritoriji Beograda
(Beograd : Srpsko hemijsko društvo, 2022)
Veštački zaslađivači saharin i sukraloza predstavljaju emergentne zagađujuće materije čije prisustvo u akvatičnim ekosistemima može negativno uticati na osetljive organizme. Veoma su postojani u životnoj sredini, a posebno ...
NANOFILTRATION AS A TOOL FOR HIGH-YIELD PURIFICATION OF DIETARY OLIGOSACCHARIDES
(Belgrade : University, Faculty of Technology and Metallurgy, 2023)
Fructo-oligosaccharides (FOS) are linear bioactive molecules consisting of one
terminal glucose and other fructose units and belong to the group of prebiotics with
scientifically proven benefits for human health. ...
How do mineralogical and physicochemical properties of badland materials change during weathering and erosion processes?
(9th EUGEO Congress, Barcelona 4-7 September 2023, 2023)
This study involves establishing a relationship between weathering and erosion processes in badlands comparing the mineralogical and physicochemical properties of unweathered and weathered material formed in the natural ...