Diamond and Related Materials
• 01 Apr 2024
Jevtić, Sonja • Stefanović, Anđela • Stanković, Dalibor • Pergal, Marija • Ivanović, Aleksandra • Jokić, Anja • Petković, Branka
Bentazone (BZ) is selective contact-past herbicide with suspected reproductive toxicity potential for human due to possible contamination of ground and surface waters. This work presents simple, rapid, sensitive and accurate determination of bentazone at unmodified boron-doped diamond electrode, using differential pulse voltammetry in Britton-Robinson buffer (pH 4, oxidation peak at 1.0 V). Under optimized DPV conditions linear calibration
curve was obtained for range of 2 to 100 μM, with a det ...
Water, Air, and Soil Pollution
• 01 Apr 2024
Pergal, Marija • Kodranov, Igor • Pergal, Miodrag • Dojčinović, Biljana • Stanković, Dalibor • Petković, Branka • Manojlović, Dragan
The degradation of two sulfonylurea herbicides, nicosulfuron and thifensulfuron methyl in water by chlorine dioxide, was studied for the first time in this paper. In order to examine the optimal parameters for degradation of both herbicides, degradation was investigated under light or dark conditions with different amount of chlorine dioxide, different degradation periods, and at different pH values. Degradation efficiency of herbicides was monitored using high-performance liquid chromatography ...
Water Air Soil Pollut
• 01 Apr 2024
Pergal, Marija • Kodranov, Igor • Pergal, Miodrag • Gašić, Uroš • Stanković, Dalibor • Petković, Branka • Manojlović, Dragan
The aim of this study was to investigate, analyze, and compare applied techniques suitable for achieving efficient removal of organophosphorus pesticides (OPPs) (malathion and fenitrothion) from aqueous solutions and analyze the degradation products and processes. Pesticide degradation efficiency (%) was monitored by highperformance liquid chromatography (HPLC) equipped with a photodiode array detector (DAD), while mineralization degree was determined by total organic carbon analysis (TOC). Daph ...
Diamond and Related Materials
• 01 Apr 2024
Petković, Branka • Ognjanović, Miloš • Krstić, Milena • Stanković, Vesna • Babincev, Ljiljana • Pergal, Marija • Stanković, Dalibor
Mefenamic acid and indomethacin, medicaments belonging to the group of non-steroidal anti-inflammatory agents, were determined separately and simultaneously at anodically prepared BDDE. Differential pulse voltammetry was used to establish simple and fast analytical procedure based on electrooxidation of mefenamic acid at 0.6 V and indomethacin at 1.0 V (and 1.1 V). At optimal conditions, it was suitable for highly sensitive
and selective determination of these compounds with LODs comparable to ...
Optica Applicata
(Oficyna Wydawnicza Politechniki Wroclawskiej)
• 22 Mar 2018
Smilić, Marko • Perić, Zoran • Milić, Dejan • Marković, Aleksandar • Savić, Milan
In this paper, the influence of a zero and a non-zero boresight pointing errors on the performances of free-space optic transmission over the Málaga atmospheric turbulence channel is considered. Closed form expressions for a zero boresight channel model probability density function, non-zero boresight channel model probability density function, as well as a bit-error rate over a binary phase shift keying modulation transmission are provided. Numerical results for zero and non-zero boresight poin ...
Electronics and Electrical Engineering
(Kaunas University of Technology)
• 22 Jun 2018
Stevanović, Aco • Panić, Stefan • Spalević, Petar • Prlinčević, Bojan • Savić, Milan
Modelling of complex wireless transmission scenario over fading channels in the presence of multiple co- channel (CCI) interferers will be presented in this paper. Propagation environment will be modelled with general kappa- mu shadowed model, which can be reduced to other well- known model as its singularities. Probability density function (PDF) and cumulative distribution function (CDF) of resulting signal-to-interference (SIR) ratio statistics at the reception will be derived in the rapidly c ...
Entropy
(Molecular Diversity Preservation International)
• 22 Jul 2021
Perić, Zoran • Savić, Milan • Simić, Nikola • Denić, Bojan • Despotović, Vladimir
Achieving real-time inference is one of the major issues in contemporary neural network applications, as complex algorithms are frequently being deployed to mobile devices that have constrained storage and computing power. Moving from a full-precision neural network model to a lower representation by applying quantization techniques is a popular approach to facilitate this issue. Here, we analyze in detail and design a 2-bit uniform quantization model for Laplacian source due to its significance ...
Macedonian Journal of Chemistry and Chemical Engineering
• 01 Apr 2024
Krstić, Milena • Petković, Branka • Milčić, Miloš • Mišić, Dušan • Santibanez, Juan Francisco
Two new nitrato complexes of zinc and nickel with 1,4,8,11-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc), have been synthesized and characterized. The IR spectral peaks showed that the coordinated and ionic nitrate ions are in agreement with the formula proposed by elemental anal-ysis. Conductometric titrations predicted methanol to be a convenient solvent for synthesis and revealed the stoichiometry of the complexes, while molar electrical conductivities indicated a 1 : 3 c ...
Elektronika ir Elektrotechnika
(Kaunas University of Technology)
• 23 Aug 2021
Perić, Zoran • Denić, Bojan • Savić, Milan • Vučić, Nikola • Simić, Nikola
This paper considers the design of a binary scalar quantizer of Laplacian source and its application in compressed neural networks. The quantizer performance is investigated in a wide dynamic range of data variances, and for that purpose, we derive novel closed-form expressions. Moreover, we propose two selection criteria for the variance range of interest. Binary quantizers are further implemented for compressing neural network weights and its performance is analysed for a simple classification ...
Int. J. Electrochem. Sci.
• 01 Apr 2024
Đurđić, Slađana • Vukojević, Vesna • Jevtić, Sonja • Pergal, Marija • Petković, Branka • Stanković, Dalibor
In this work, for the first time we proposed electrochemical behavior and development of an analytical procedure for quantification of pesticide clomazone. Electrochemical behavior of clomazone’s at boron-doped diamond electrode is characterized with irreversible oxidation at potential of around 1.6 V, in Britton-Robinson buffer solution at pH 2. It was found that potential of this oxidation was not pH dependent excluding presence of proton in the electrochemical reaction. Square wave voltammetr ...
