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Приказ резултата 31-40 од 2707
Kinetics of Heterogeneous Biodiesel Synthesis Using Supported ZnO as Catalyst
(Wiley-VCH Verlag Gmbh, Weinheim, 2014)
A heterogeneous catalyst, ZnO supported on alumina/silica, was synthesized by the sol-gel method. The prepared catalysts were employed for methanolysis of sunflower oil. Effects of various supports as well as calcination ...
Fabrication and behaviour of Al-Si/SiC composite in cavitation conditions
(Taylor & Francis Ltd, Abingdon, 2014)
Aluminium matrix composite (AMC) specimens were prepared using the compocasting technique. The reinforcements used were silicon carbide (SiC) particles with an average size of 30 mm. The influence of reinforced ratio of ...
Purification technologies for crude biodiesel obtained by alkali-catalyzed transesterification
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
For commercial application, the ester product of alkali-catalyzed transesterification of vegetable oil or animal fats should be refined after glycerol separation by settling to fulfill the biodiesel standard specifications. ...
Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts
(Elsevier Sci Ltd, Oxford, 2017)
The aim of this study was to analyse the antioxidant activity of different polymeric matrices based on chitosan and starch, incorporating a thyme extract (TE) rich in polyphenols. TE provided the films with remarkable ...
Composite nanostructured hydroxyapatite/yttrium stabilized zirconia dental inserts - The processing and application as dentin substitutes
(Elsevier Sci Ltd, Oxford, 2018)
The objective of the study was to process nano-structured hydroxyapatite/yttrium-stabilized zirconia bioceramic and to investigate the possibilities of its application as dentin replacement in the form of dental inserts. ...
Synthesis of fluorapatite nanopowders by a surfactant-assisted microwave method under isothermal conditions
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2018)
Fluorapatite nanopowders with different amounts of fluoride ions were prepared using the surfactant-assisted microwave method under isothermal conditions. Microwave irradiation was applied for the rapid formation of crystals. ...
Polyphosphate glass as fertilizer for plant seedlings / Efekat primene polifosfatnog stakla u supstratima za gajenje cveća i povrća
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
Due to the dissolution properties the phosphate glasses can be promising materials for the development of new ecologically safe fertilizers. The complex polyphosphate glass with a molar ratio (M2O + MO)/P2O5 gt 1 and ...
A radial 1D Finite Element for Drug Release from Drug Loaded Nanofibers
(Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac, 2017)
The aim of this study was to investigate the release performance of an electrospun composite drug loaded nanofiber mat. Electrospun nanofiber mats are promising as drug carriers which offer site-specific delivery of drugs ...
Solvent influence on absorption spectra of food azo dyes / Uticaj rastvarača na apsorpcione spektre prehrambenih azo boja
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
The solvent influence on absorption spectra of food azo dyes was examined by the method of Linear Solvation Energy Relationships (LSER). For this purpose, six azo dyes were used: tartrazine (E 102), ponceau 4R (E 124), ...
Prediction of high pressure liquid heat capacities of organic compounds by a group contribution method / Predskazivanje toplotnog kapaciteta organskih tečnosti na visokom pritisku pomoću metode doprinosa grupa
(Serbian Chemical Society, Belgrade, 2011)
A new method for estimating high pressure liquid heat capacities based on molecular structure and group contribution is proposed. A common set of structural groups was employed. The method was developed using 67 sets of ...