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Приказ резултата 51-60 од 224
Walsh analysis - a convenient preprocessor for period detection in astronomy
(Astronomical Observatory Belgrade, 2016)
Walsh analysis is practically analogous to Fourier analysis, except that square wave is used instead of the sine one. It has one major advantage over Fourier - it can be performed much faster. This may seem of little ...
Određivanje veštačkog zaslađivača saharina u uzorcima otpadne vode / Determination of artificial sweetener saccharin in wastewater samples
(Beograd : Beogradska politehnika, 2019)
Široka primena veštačkih zaslađivača u prehrambenoj i farmaceutskoj industriji počela je početkom osamdesetih godina prošlog veka. Većina ovih jedinjenja se ne metaboliše u ljudskom telu i izlučuje se uglavnom nepromenjena. ...
In situ synthesis of Cu/Cu2O nanoparticles on the TEMPO oxidized cotton fabric / In situ sinteza Cu/Cu2O nanočestica na TEMPO oksidovanoj pamučnoj tkanini
(Beograd : Serbian Chemical Society, 2017)
Recent breakthrough in nanotechnologies had large impact on research in the field of medical textiles. So far many efforts have been made to fabricate antimicrobial textile materials with incorporated metal (Ag, Cu) and ...
Mechanical properties of alginate-liposomes-based beads with encapsulated resveratrol / Mehaničke karakteristike čestica alginat-lipozomi sa inkapsuliranim resveratrolom
(Faculty of Technology, Zvornik, 2015)
In this work mechanical behavior of four different formulations of alginate-based beads was
tested. The alginate beads were prepared by means of extrusion technique. As a model
encapsulated bioactive substance ...
Antioksidativna aktivnost etanolnih ekstrakata Thymus serpyllum
(Faculty of Technology, Zvornik, 2015)
Wild Thyme (Thymus serpyllum, Lamiaceae) is a subshrub from the Lamiaceae family, with
plants that are rich in essential oils and antioxidative polyphenolic substances. Reducing
potential of phenolic compounds gives them ...
Hemijski modifikovane aktivirane ugljenične tkanine: Karakterizacija površine i adsorpcija estrogenih hormona
(Faculty of Technical Sciences, University of Novi Sad, 2018)
Aktivirane ugljenične tkanine su modifikovane sa HCl, HNO3 ili KOH. Nakon toga, vršena je
njihova karakterizacija primenom BET metode, FTIR analize i ispitivanjem tačke nultog naelektrisanja. Rezultati su pokazali da je ...
One-step hydrothermal synthesis of photocatalytically active TiO2/carbon composite
(Society of Physical Chemists if Serbia, 2016)
TiO2/carbon composite (TiO2/HTC), synthesized by hydrothermal
carbonization, was characterized by thermogravimetric analysis, nitrogen
adsorption–desorption isotherms and X-ray diffraction. The possibility of
using ...
Ispitivanje vremenske sinhronizovanosti mernih signala snimljenih MEMS akcelerometrima
(Društvo za ETRAN, 2017)
U radu je opisano ispitivanje sinhronizovanosti podataka koji su uzorkovani putem odvojenih MEMS akcelerometara. Korišćeni su bežični senzorski uređaji razvijeni na Građevinskom fakultetu u Beogradu, namenjeni merenju ...
Uklanjanje estrona, 17β-estradiola i 17α-etinilestradiola iz vode na aktivnim ugljeničnim tkaninama
(Beograd : Visoka škola strukovnih studija Beogradska politehnika, 2017)
Prisustvo estrogenih hormona u vodenim resursima čak i u veoma niskim koncentracijama (reda
veličine ng/L) može dovesti do niza funkcionalnih poremećaja kod akvatičnih organizama, kao što
su poremećaj u radu endokrinog ...
Long-term and low-temperature annealing of as-continuous drive friction welded and post-weld heat treated Al/Cu bimetal joints
(Kiev, Ukraine, 2017)
In general, continuous drive friction welding (CDFW) of two metals
may produce three typical regions from a weld interface towards an unaf-
fected base metal: (i) fully deformed or dynamically recrystallized (DRX) ...