Information Technology and Control
(Kaunas University of Technology)
• 24 Sep 2021
Perić, Zoran • Denić, Bojan • Savić, Milan • Dinčić, Milan • Mihajlov, Darko
Quantization and compression of neural network parameters using the uniform scalar quantization is carried out in this paper. The attractiveness of the uniform scalar quantizer is reflected in a low complexity and relatively good performance, making it the most popular quantization model. We present a design approach for the memoryless Laplacian source with zero-mean and unit variance, which is based on iterative rule and uses the minimal mean-squared error distortion as a performance criterion. ...
Chemistry & Biodiversity
(Wiley-VHCA AG, Zurich, Switzerland)
• 15 Jun 2020
Randjelović, Pavle • Radulović, Niko • Stojanović, Nikola • Dekić, Vidoslav • Dekić, Biljana • Stojiljković, Nenad • Ilić, Sonja
In this work we explored the possible polypharmacological potential of the already established antimicrobials against gastrointestinal pathogens, 4-(alkylamino)-3-nitrocoumarins, as antianxiety agents, using a battery of in vivo experiments. Three chosen coumarin derivatives, differing in the substituent (sec-butylamino, hexadecylamino, or benzylamino) at position 4, at the doses of 25, 50 and 100 mg kg-1, were evaluated in light/dark, open-field, horizontal wire and diazepam-induced sleep model ...
Information
(MDPI)
• 27 Oct 2020
Perić, Zoran • Denić, Bojan • Savić, Milan • Despotović, Vladimir
A compression method based on non-uniform binary scalar quantization, designed for
the memoryless Laplacian source with zero-mean and unit variance, is analyzed in this paper. Two quantizer design approaches are presented that investigate the effect of clipping with the aim of reducing the quantization noise, where the minimal mean-squared error distortion is used to determine the optimal clipping factor. A detailed comparison of both models is provided, and the performance evaluation in a wide ...
International Journal of Environmental Analytical Chemistry
• 01 Apr 2024
Vukojević, Vesna • Đurđić, Slađana • Jevtić, Sonja • Pergal, Marija • Marković, Aleksandar • Mutić, Jelena • Petković, Branka • Stanković, Dalibor
In this work, the electrochemical behaviour and the subsequent development of an analytical procedure for quantification of pesticide azamethiphos, using boron-doped diamond (BDD) electrode are reported for the first time. It was found that azamethiphos
electrochemical behaviour is irreversible oxidation at the potential of around 1.70 V, in 1 M nitric acid (pH 0). Also, it was found that potential of this oxidation was not pH dependent which can be attributed to the no proton involvement in el ...
University thought
• 01 Apr 2024
Jevtić, Sonja • Stanković, Dalibor • Jokić, Anja • Petković, Branka
This review paper shows the progress made in the last five years in electrochemical methods applied for the purpose of detection and quantification of pesticides - nowadays the most serious pollutants of the environment. Most pesticides can be successfully analyzed by chromatographic techniques, but because of high prices and immobility of the apparatus, the complexity of the method and the necessary special preparation of the samples, electrochemical methods have been recognized as an excellent ...
Polish Journal of Environmental Studies
(HARD Publishing Company s.c.)
• 08 Sep 2020
Pecev-Marinković, Emilija • Miletić, Ana • Pavlović, Aleksandra • Tošić, Snežana • Mitić, Milan • Rančić, Sofija • Dekić, Biljana
The objective of this paper was to develop and apply the kinetic-spectrophotometric method for the determination of the pesticide dicamba in infant baby foods available in Serbia. The method is based on the inhibition effect of dicamba on the oxidation of sulfanilic acid (SA) by hydrogen peroxide in universal buffer (pH = 9.66) in the presence of Co2+ ion. The reaction was monitored spectrophotometrically at 368 nm. The HPLC method was used as a comparative method to verify the results of the ki ...
Entropy
(Molecular Diversity Preservation International)
• 16 Mar 2022
Simić, Nikola • Suzić, Siniša • Nosek, Tijana • Vujović, Mia • Perić, Zoran • Savić, Milan • Delić, Vlado
Speaker recognition is an important classification task, which can be solved using several
approaches. Although building a speaker recognition model on a closed set of speakers under neutral speaking conditions is a well-researched task and there are solutions that provide excellent performance, the classification accuracy of developed models significantly decreases when applying them to emotional speech or in the presence of interference. Furthermore, deep models may require a large number of ...
University thought
• 01 Apr 2024
Jokić, Anja • Petković, Branka • Jevtić, Sonja • Vasić, Vesna • Laban, Bojana
The iron oxide nanoparticles (Fe2O3 NPs) were synthesized from two different iron salts by solid-state synthesis method. The synthesized powder of Fe2O3 NPs is soluble in water, and the colloidal dispersion was characterized by TEM, FTIR, UV-Vis spectroscopy and zeta potential measurements. Obtained NPs are spherical in shape with narrow particle size distribution and an average diameter of 3 nm. Further, the possible application of Fe2O3 NPs was proposed, due to significant electroanalytical si ...
Phytochemical Analysis
(Wiley-VHCA AG, Zurich, Switzerland)
• 10 Dec 2019
Radulović, Niko • Mladenović, Marko • Ristić, Milenko • Dekić, Vidoslav • Dekić, Biljana • Ristić, Novica
Introduction: Minor plant constituents are difficult to identify due to the challenging
isolation and acquiring of reliable spectral data. Essential oils abound in such minor
constituents that might be of high importance for their (e.g. olfactory) properties. The
presence of new minor constituents is usually inferred from gas chromatography
mass spectrometry (GC-MS) analyses that provide only a mass spectrum and retention
data, which are insufficient to allow a positive identification.
Obj ...
Physical Chemistry 2018, 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry
• 01 Apr 2024
Pergal, Marija • Kuč, Dragana • Kodranov, Igor • Pergal, Miodrag • Stanković, Dalibor • Petković, Branka • Manojlović, Dragan
In the present study, the degradation of azamethiphos using chlorine dioxide was studied. The optimization of the azamethiphos degradation in terms of chloriпe dioxide dosage, different time of degradation and at different рН values, was performed in system with deionized water. The degradation was monitored using high performance liquid chromatography (НPLC-DAD) analysis. It was found that complete degradation was achieved with optimal concentration of 5 mg/dm3 chlorine dioxide at concentration ...
