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Prikaz rezultata 1-10 od 390
Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function
(International Institute for the Science of Sintering, Beograd, 2019)
Alumina powders, pure and doped with nickel, were synthetized by sol-gel method and calcined at 500, 900 and 1100°C in order to obtain mesoporous structures with a high specific surface area, well adapTab. to catalytic ...
The socio-economic impact timeline in Serbia for persistent organic pollutants (POPs)
(ELSEVIER, 2019)
Assessing the socio-economic impact of dangerous chemicals, including persistent organic pollutants (POPs) as a
specific segment, includes analysis of their impacts on human health, on the environment and on local ...
The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations / Uloga molekulskih osobina mononitrofluorantena u njihovoj mutagenoj aktivnosti :AB initio i DFT pristup
(Serbia : Serbian Chemical Society, 2019)
The molecular properties of the environmental mutagens nitrofluoranthenes (NFs; 1-, 2-, 3-, 7- and 8-NF), such as (hyper)polarizability, dipole moment, molecular electrostatic potential (MEP), spectroscopic characteristics, ...
Cobalt impregnated natural and acid modified montmorilloniteas catalysts in heterogeneous catalytic oxidation of nicotine in the presence of Oxone®
(Belgrade : Serbian Ceramic Society, 2019)
Nicotine i.e. (S)-3-(1-methylpyrrolidin-2-yl) pyridine is an alkaloid present in significant quantities in tobacco leaves and can be found in wastewaters as an aftermath of tobacco manufacturing. Natural Wyoming originated ...
Nickel doped titanate catalysts for photocatalytic hydrogen generation
(Belgrade : Institute of Technical Sciences of SASA, 2019)
This study will focus on investigation of photocatalytic hydrogen production activity over low cost Ni modified titanates, as alternatives for highly cost and low-abundance noble metal based catalysts. The catalysts with ...
Evolution of Si Crystallographic Planes-Etching of Square and Circle Patterns in 25 wt % TMAH
(MDPI, 2019)
Squares and circles are basic patterns for most mask designs of silicon microdevices. Evolution of etched Si crystallographic planes defined by square and circle patterns in the masking layer is presented and analyzed in ...
Intensification of a chemical reactor for methanol synthesis through forced periodic operations- Evaluation based on Nonlinear Frequency Response Analysis
(2nd International Process Intensification Conference, Leuven, Belgium, 2019)
In this work, the NFR method is implemented for evaluation of possible improvement for the reaction of methanol synthesis by hydrogenation of CO and CO2, using a standard Cu/ZnO/Al2O3 catalyst. For start, a forced periodically ...
Preliminary Analysis of Quality of Contour Lines Using Smoothing Algorithms
(Croatia : Faculty of Mechanical Engineering in Slavonski BrodCroatia : Faculty of Electrical Engineering in OsijekCroatia : Faculty of Civil Engineering in Osijek, 2019)
In this paper several well-known filtering techniques were compared in the purpose of automatic line generalization. The used methods for line simplification are digital first order low-pass filter, Savitzky-Golay (SG) ...
Biodiesel synthesis over green catalyst: The effect of thermal treatment of CaO/Zeolite precursor on catalytic activity
(Belgrade : Serbian Chemical Society, 2019)
The green CaO/Zeolite catalyst for methanolysis of fatty oils was synthesized entirely from the waste materials. CaO derived from chicken eggshell was loaded onto fly ashbased zeolite catalyst carrier by the wet impregnation ...
Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study
(Balkan Environmental Association, 2019)
Microorganisms can grow on the surface of concrete and inside its pores and microcracks, producing different metabolites. Microbial metabolites, particularly acids, degrade concrete components and enhance its deterioration ...