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Приказ резултата 11-20 од 482
Characterization of oil pollutants in soil and sediments in the vicinity of a heating plant – alluvial sediments of the Sava river, Belgrade, Serbia
(Croatia : Association for Promotion of Holistic Approach to Environment, 2021)
The aim of this research was characterization of oil pollutants in the soil and sediments
in the vicinity of one of the largest district heating plants in Belgrade (Capital of Serbia).
The soil and sediment samples (109 ...
Investigation of physicochemical properties and potential biological activity of 2-pyridine-(thio)carbohydrazone derivatives
(Programme and the book of abstracts, 14th International Scientific Conference Contemporary Materials 2021, 2021)
Carbohydrazones and their thio analogs represent compounds obtained by condensation of carbohydrazide and thiocarbohydrazide with carbonyl compounds. Due to their structure, relatively simple synthesis, and high reactivity, ...
Numerical evaluation of aerodynamic performances of vertical-axis wind turbine rotor with flow concentrator
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, Beograd, 2020)
With wind energy extraction constantly increasing, the interest in small-scale urban wind turbines
is also expanding. Given that these machines often work in adverse operating conditions
(Earth’s boundary layer, vortex ...
Wind turbine beyond 20 MW – Technology perspective
(Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, Beograd, 2020)
The trend of wind turbine development has a special significance in the exploitation of renewable
energy sources. At higher altitudes, we have better wind energy utilization higher speed and
their conversion are achieved ...
Surface modification on iron induced by Nd:YAG pulsed laser treatment
(Belgrade : Military Technical Institute, 2020)
The modern military industry demands the most innovative and high-quality metals and alloys, as well as
processing technologies. Iron and its alloys are a common material used for different types of weapons ...
Forced periodic reactor operation: Analysis of process and forcing parameters exploiting the nonlinear frequency response method
(Wiley, 2020)
Continuous chemical reactors are mostly operated under steady-state conditions. However, theoretical studies reveal that forced periodic operation (FPO) can lead to better performance. To predict and optimize FPO, the ...
High pressure densities of ethylene glycol and caffeine mixtures
(IFP Energies nouvelles, 2021)
Ethylene glycol is a well-known fluid that is recognized for its application in heat transfer processes [1]. In order to improve its characteristics and performances, adding other particles in the mixture of ethylene glycol ...
One-step Synthesis and Characterization of a New Magnetic Polyacrylate Nanocomposite with Aniline
(Academy of Sciences and Arts of the Republic of Srpska, 2020)
In this study, a novel magnetic poly(glycidyl methacrylate-co-trimethylolpropane trimethacrylate)-aniline nanocomposite was synthesized by suspension copolymerization. Firstly, adduct from glycidyl methacrylate and aniline ...
Incorporating a Lowpass Filter into a Very Wide Bandpass Filter to Suppress Harmonics
(Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering, 2021)
This paper presents an algorithm for suppression of higher harmonics in response of the very wide bandpass filter (WBPF). Lowpass filter (LPF) is incorporated into the very wide bandpass filter to suppress harmonics. The ...
Influence of sintering temperature on the performance of titanium dioxide anode in Dye Sensitized Solar Cells with natural pigment hypericin
(Belgrade : ETRAN Society, 2020)
Dye Sensitized Solar cells (DSSC) are very attractive due to their low cost fabricating methods and used materials. One of the most important parts of the cells is the photoanode. Many semiconducting materials are used for ...