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Приказ резултата 1-10 од 857
Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K
(Academic Press Ltd- Elsevier Science Ltd, London, 2014)
The molality-based osmotic coefficients of aqueous mixtures of K2SO4 and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic method, at K2SO4 ionic strength fractions y = (0.21008, 0.39887, 0.60657, ...
Obezbojavanje antrahinonskih boja peroksidazom izolovanom iz svežeg ekstrakta rena / Anthraquinone dyes decolorization using peroxidase from fresh horseradish extract
(Beograd : Srpsko hemijsko društvo, 2015)
Peroksidaza iz rena se pokazala kao izuzetan biokatalizator za oksidaciju brojnih aromatičnih
jedinjenja uključujući i antrahinonske boje. Poslednjih godina reakcije oksidacije
antrahinonskih boja katalizovane peroksidazom ...
Recycling of silver-plated brass for production of high purity copper and ultrafine silver powder for electric contacts
(Bulgarian Chemical Communications, 2014)
The paper presents an improved process for recycling of silver-plate brass housing. Silver and copper are recovered with a purity of 99.99 % and 99.90 %, respectively, with the aim of obtaining materials of higher value ...
Alat od osam pari kalibrisanih valljaka za uzdužno kontinualno profilisanje uske čelične trake i formiranje punjene žice
(Zavod za intelektualnu svojinu, sektor za patente odeljenje za mašinstvo, elektrotehniku i opštu tehniku 990, 2021)
Prikazani pronalazak, alat od osam pari kalibrisanih valjaka za uzdužno kontinualno profilisanje uske čelične trake i formiranje punjene žice, se odnosi na konstrukciono rešenje alata za kalibraciju uske čelične trake i ...
Photocatalytic Degradation of Dye CI Direct Blue 78 Using TiO2 Nanoparticles Immobilized on Recycled Wool-Based Nonwoven Material
(Wiley, Hoboken, 2013)
This paper discusses the possibility of immobilization of TiO2 nanoparticles onto recycled wool-based nonwoven material, which can be utilized for removal of dyes from wastewater. The photocatalytic activity of TiO2 ...
A comprehensive approach to in vitro functional evaluation of Ag/alginate nanocomposite hydrogels
(Elsevier Sci Ltd, Oxford, 2014)
In this work, we present a comprehensive approach to evaluation of alginate microbeads with included silver nanoparticles (AgNPs) at the concentration range of 0.3-5 mM for potential biomedical use by combining cytotoxicity, ...
Delimično topljenje i centrifugiranje kao nova metoda pred-tretmana metaličnog granulata e-otpada: Preliminarni laboratorijski test
(Bor : Tehnički fakultet, 2012)
Ogromne količine otpada od električnih i elektronskih proizvoda (e-otpad) koje se u svetu
svakodnevno generišu ne prerađuju se na adekvatan način. Rast cena metala koji se beleži
poslednjih godina, glavni je razlog što ...
Stability of gold complex based on mercaptotriazole in acid and neutral media
(Bulgarian Academy of Sciences, 2018)
Stability of the gold complex based on mercaptotriazole in two acid electrolytes with different pH values and in a neutral medium was investigated in this work. Investigation was performed by visual monitoring and ...
The formation of oxide nanoparticles on the surface of natural clinoptilolite
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
Nanoparticles of NiO, ZnO and Cu(2)O crystallize when the Ni-, Zn- and Cu-exchanged natural clinoptilolite, respectively, are dehydrated by heating in air at 550 degrees C. The dehydration of Mn-exchanged clinoptilolite ...
Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense
(Elsevier, Amsterdam, 2014)
Microwave-assisted extraction was optimised by the response surface methodology in order to enhance the extraction of polyphenols from Equisetum arvense (horsetail). Under the optimal conditions the total polyphenol content ...