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New trends and challenges in lactic acid production on renewable biomass / Novi pravci i izazovi u proizvodnji mlečne kiseline na obnovljivim sirovinama
(Association of Chemical Engineers of Serbia, 2011)
Lactic acid is a relatively cheap chemical with a wide range of applications: as a preservative and acidifying agent in food and dairy industry, a monomer for biodegradable poly-lactide polymers (PLA) in pharmaceutical ...
The ways to improve the economy of bioethanol production in Serbia
(24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011, 2011)
The rapid depletion of the world fossil fuel supply and the increasing problem of greenhouse gas effects have strenghtened the worldwide interest in alternative sources of energy. Bioethanol accounts for the majority of ...
Some tactile comfort properties of plain knitted fabrics / Neka svojstva taktilnog komfora glatkih pletenina
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2011)
The sensory perception of textile materials is related to mechanical stimuli due to pressure and friction forces, so the softness and surface properties are considered to be the key parameters of fabric hand. The aim of ...
Ethylenediamine-modified multiwall carbon nanotubes as a Pt catalyst support
(Elsevier Science Sa, Lausanne, 2011)
Multi-walled carbon nanotubes (MWCNTs) were used as a support for Pt nanoparticles prepared by the microwave-assisted polyol method. The MWCNTs were pretreated by chemical oxidation (o-MWCNTs) followed by modification by ...
Solid state synthesis of extra phase-pure Li4Ti5O12 spinel
(Belgrade : International Institute for the Science of Sintering, 2011)
Extra phase-pure Li4Ti5O12 spinel with particle sizes less than 500 nm was synthesized by solid state reaction of mechanochemicaly activated mixture of nano anatase and Li2CO3 for a very short annealing time, 4 h at 800°C. ...
Technological possibilities and justification of electro-contact rapairing
(Technics Technologies Education Management, 2011)
This paper presents a selected repair technology for different types of electro-contacts by replacing the contact plates on the brass body of the electro-contacts and connecting the elements by process of brazing with ...
Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study
(Journal of Cleaner Production, 2011)
In this study, the performance and the efficiency of physico-chemical effluent treatment in a paper mill was investigated, with the aim of evaluating the treatment rationality and running stability. The effluent treatment ...
Effect of alkaline solutions on the tensile properties of glass-polyester pipes / Uticaj baznih rastvora na zatezne karakteristike staklo-poliester kompozitnih cevi
(Faculty of Technology, Novi Sad, 2011)
Construction materials, traditionally used in process equipment, are today successfully replaced by composite materials. Hence, many pipes are made of these materials. The subject of this study was the influence of liquids ...
Synthesis and characterization of monetite and hydroxyapatite whiskers obtained by a hydrothermal method
(Elsevier Sci Ltd, Oxford, 2011)
High temperature hydrothermal syntheses, using calcium nitrate tetrahydrate, sodium dihydrogen phosphate and urea as precursors, and characterization of hydroxyapatite (HAp) whiskers are reported herein. The morphology and ...
Synthesis and characterization of copolymer hydrogels of chitosan, itaconic acid and N-isopropylacrylamide / Sinteza i karakterizacija kopolimernih hidrogelova hitozana, itakonske kiseline i N-izopropilakrilamida
(Association of Chemical Engineers of Serbia, 2011)
This paper deals with the synthesis of copolymer hydrogels of N-isopropylacrylamide, itaconic acid and chitosan. During synthesis, pH of the reaction solution and temperature were varied. It was found that the reaction at ...