Претраживање
Приказ резултата 151-160 од 171
Micromechanical properties of composite systems consisting of electrodeposited nickel coatings on different substrates / Mikromehanička svojstva kompozitnih sistema formiranih elektrohemijskim taloženjem filmova nikla i bakra na različitim podlogama
(Savez inženjera i tehničara Srbije, Beograd, 2012)
Fine-grained nickel and copper thin films were electrodeposited (ED) from self-made sulphamate and sulphate electrolytes, respectively, on different substrates. The substrates were single crystal silicon with two different ...
Contamination of cakes with toxigenic molds / Kontaminacija poslastičarskih proizvoda toksigenim plesnima
(Matica Srpska, 2013)
The total number of molds in cakes ranged up to 9.0 x 102 CFU/g. The highest number of molds was isolated on Dichloran 18% Glycerol Agar (DG18), and the lowest on Malt Yeast Extract 50% Glucose Agar (MY50G). Mycopopulation ...
Effect of tracers molecular weight on the release process from alginate microbeads / Uticaj molekulske mase trejserskih indikatora na kontrolisano otpuštanje iz alginatnih mikročestica
(Savez inženjera i tehničara Srbije, Beograd, 2015)
The aim of this paper is to obtain microbeads of natural polymers such as alginate and chitosan. These microbeads were used as potential carriers for the active ingredients so that in this study the diffusion of various ...
Optimization of chitosan gel preparation for supercritical impregnation of thymol / Uticaj pripreme hitozan gelova na natkritičnu impregnaciju sa timolom
(Savez inženjera i tehničara Srbije, Beograd, 2015)
The impregnation of differently prepared chitosan gels with thymol using supercritical carbon dioxide (scCO2) was studied in order to obtain new materials with added value without the use of organic solvents. The optimum ...
Analysis of catalyst wetting efficiency influence on performances of industrial TBR for hydro desulfurization and hydro de aromatization reactions / Analiza uticaja ovlaženosti katalizatora u industrijskom TBR reaktoru na reakcije hidrodesulfurizacije i hidrodearomatizacije
(Savez inženjera i tehničara Srbije, Beograd, 2015)
Many industrial scale trickle bed reactors (TBR) operate at lower liquid superficial velocities ( lt 0.5 cm/s) at which the catalyst particle are not completely wetted. This phenomenon of incomplete wetting has therefore ...
Metallurgical processing of copper secondary raw materials / Metalurška prerada sekundarnih sirovina bakra
(Savez inženjera i tehničara Srbije, Beograd, 2015)
Procedures for copper secondary raw materials processing include two basic stages: pretreatment of the copper waste and its further metallurgical processing. For copper waste pretreatment technology, there are different ...
Production of lactic acid and microbial biomass on distillery stillage by using immobilized bacteria / Proizvodnja mlečne kiseline i bakterijske biomase na destilerijskoj džibri pomoću imobilisanih bakterija
(Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad, 2014)
Lactic acid is versatile chemical with a wide range of applications in chemical, food, pharmaceutical, cosmetic and polymer industries. Currently, lactic acid world consumption is continually increasing mostly due to ...
Causes of pollution and the quality of river Ibar in Raška municipality / Uzroci zagađivanja i kvalitet vode reke Ibar u opštini Raška
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2014)
Analysis of water quality of the river Ibar, from Raška to Kraljevo, was done in the period June-October 2012. Physicochemical and microbiological analysis were done on five measuring points, but only three of them, in ...
Laser cleaning of textile artifacts with metal threads: Process parameter optimization / Lasersko čišćenje tekstilnih eksponata sa korodiranim metalnim nitima - optimzacije parametara procesa
(Military Technical Institute, Belgrade, 2014)
This paper presents the results of the laser cleaning effects on textile samples with corroded metallic threads. In many museum collections, there are textile exhibits like uniforms, national costumes, flags and home ...
Antimicrobial hydrogels based on 2-hydroxyethyl methacrylate and itaconic acid containing silver(I) ion / Antimikrobni hidrogelovi na bazi 2-hidroksietil metakrilata i itakonske kiseline koji sadrže srebro(I) jon
(Savez inženjera i tehničara Srbije, Beograd, 2014)
The objective of our study was to develop new antimicrobial hydrogels silver/poly(2-hydroxyethyl methacrylate/ itaconic acid) (Ag/P(HEMA/IA)). The P(HEMA/IA) samples, with different HEMA/IA ratio, were prepared by free ...