Претраживање
Приказ резултата 1-10 од 1039
Integrated procedure for recycling and valorization of useful components from secondary raw materials based on hard metals
(Savez inženjera metalurgije Srbije, Beograd, 2017)
Wide application of hard metals requires increased consumption of their constituents. Their high cost and scarcity impose the need for finding new, both ecologically and economically justified ways for their production. ...
Synthesis of 4,6-dimethyl-3-cyano-2-pyridone catalysed by amino acids / Sinteza 4,6-dimetil-3-cijano-2-piridona katalizovana aminokiselinama
(Engineering Society for Corrosion, Belgrade, Serbia, 2017)
In this work the synthesis of 4,6-dimethyl-3-cyano-2-pyridone catalyzed by amino acids was studied. In the first part of the work, the optimization was carried out by varying the initial concentration of glycine, the molar ...
Landfill design in Serbia / Prilog tehnološkom projektovanju deponija u Srbiji
(University of Belgrade, Technical Faculty in Bor, 2015)
Waste disposal is an important element of integrated waste management. In order to dispose of waste that is free of environmental risk, the proper design of landfills during their construction and/or closure is necessary. ...
Recycling of Precious Metals from E-scrap
(Jihad Daneshgahi, Tehran, 2013)
Recovery of gold and other valuable metals from electronic scrap involves a complex metallurgical flow sheet and requires state-of-the-art recovery technologies that are available in large-scale, integrated smelter and ...
Antioxidants of Edible Mushrooms
(MDPI, Basel, 2015)
Oxidative stress caused by an imbalanced metabolism and an excess of reactive oxygen species (ROS) lead to a range of health disorders in humans. Our endogenous antioxidant defense mechanisms and our dietary intake of ...
Indicators of HSLA steel behavior under low cycle fatigue loading
(Elsevier Science Bv, Amsterdam, 2016)
In present paper, the experimental research of the behaviour of high-strength low-alloy steel (HSLA) exposed to low-cycle fatigue (LCF) with controlled and fully reversible strain (Delta epsilon/2 = const, R epsilon = ...
Fed-batch L-(+)-lactic acid fermentation of brewer's spent grain hydrolysate
(Inst Brewing, London, 2017)
Brewer's spent grain (BSG) hydrolysates were used for L-(+)-lactic acid (LA) fermentation by Lactobacillus rhamnosus ATCC 7469. The aim of this study was to evaluate fed-batch LA fermentation of BSG hydrolysate with the ...
The tribological performance of hardfaced/thermal sprayed coatings for increasing the wear resistance of ventilation mill working parts
(Univerzitet u Kragujevcu - Fakultet inženjerskih nauka, Kragujevac, 2015)
During the coal pulverizing, the working parts of the ventilation mill are being worn by the sand particles. For this reason, the working parts are usually protected with materials resistant to wear (hardfaced/thermal ...
Effect of Electrodeposition Current Density on the Microstructure and Magnetic Properties of Nickel-cobalt-molybdenum Alloy Powders
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2014)
Nanostructured nickel-cobalt-molybdenum alloy powders were electrodeposited from an ammonium sulfate bath. The powders mostly consist of an amorphous phase and a very small amount of nanocrystals with an mean size of less ...
Current efficiency in the chlorate cell process
(Srpsko hemijsko društvo, Beograd, 2014)
A mathematical model has been set up for current efficiency in a chlorate cell acting as an ideal electrochemical tubular reactor with a linear increase in hypochlorite concentration from the entrance to the exit. Good ...