Претраживање
Приказ резултата 351-360 од 385
Galacto-oligosaccharide synthesis using chemically modified beta-galactosidase from Aspergillus oryzae immobilised onto macroporous amino resin
(Elsevier Sci Ltd, Oxford, 2016)
The goal of this study was to establish an efficient immobilisation protocol for beta-galactosidase from Aspergillus oryzae onto the polystyrenic macroporous resin Purolite (R) A-109 for better utilisation of its ...
Modeling the BOD of Danube River in Serbia using spatial, temporal, and input variables optimized artificial neural network models
(Springer, Dordrecht, 2016)
This paper describes the application of artificial neural network models for the prediction of biological oxygen demand (BOD) levels in the Danube River. Eighteen regularly monitored water quality parameters at 17 stations ...
Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method
(Elsevier Sci Ltd, Oxford, 2016)
The chemical synthesis of nickel manganite powder was performed by a complex polymerization method (CPM). The obtained fine nanoscaled powders were uniaxially pressed and sintered at different temperatures: 1000-1200 degrees ...
Influence of material velocity on heat generation during linear welding stage of friction stir welding
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
The heat generated during friction stir welding process depends on plastic deformation of the material and friction between the tool and the material. In this work, heat generation is analysed with respect to the material ...
Multi-criteria analysis of synthesis methods for ni-based catalysts
(Inst Za Kovinske Materiale I In Tehnologie, Ljubjana, 2016)
Catalysts based on the Ni/Al2O3 system are used in a variety of catalytic processes. Catalysts are commonly synthesized through thermochemical routes (impregnation, precipitation, coprecipitation and others). The authors ...
USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses
(SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE, 2016)
Dextransucrase (DS) is extracellular enzyme that catalyses the synthesis of dextran using
sucrose as a substrate, mainly produced by microorganisms belonging to the genera
Lactobacillus, Leuconostoc and Streptococcus. ...
Landfill design: need for improvement of water and soil protection requirements in EU Landfill Directive
(Springer, New York, 2016)
This paper deals with environmental policy issues related to a landfill design. The final product of numerous waste treatments should be placed on a landfill. Before waste disposal, the ground should be protected by a ...
Synthesis and characterization of polymeric matrices based on 2-hydroxyalkyl acrylate and itaconic acid for controlled release of oxaprozin / Sinteza i karakterizacija polimernih matrica na bazi 2-hidroksialkil akrilata i itakonske kiseline za kontrolisano otpuštanje oksaprozina
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2016)
In order to improve the efficiency of pharmacotherapy by development of the sophisticated drug delivery systems, two series of hydrogels were synthesized in this study. Hydrogels were synthesized by the free-radical ...
Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol
(Elsevier Science Bv, Amsterdam, 2016)
Nano-crystalline nickel ferrite has a broad range of applications due to its favourable magnetic properties. Those characteristics can be significantly influenced by the synthesis pathway including methods conducted in the ...
Arsenic(III) adsorption from aqueous solutions on novel carbon cryogel/ceria nanocomposite
(Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad, 2016)
Carbon cryogel/ceria composite, with 10 wt.% of ceria, was synthesized by mixing of ceria and carbon cryogel (CC). The sample was characterized by field emission scanning electron microscopy, nitrogen adsorption and X-ray ...