TY  - JOUR
AU  - Arandjelović, Nemanja M.
AU  - Nikezić, Dušan P.
AU  - Ramadani, Uzahir R.
AU  - Lazović, Ivan M.
AU  - Mirkov, Nikola S.
AU  - Osmokrović, Predrag V.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5221
AB  - The research presents an experiment with a model of an electronic generator for energy injec- tion into the plasma of a fusion reactor. By recording a non-ionizing field in the vicinity of a fusion reactor, it was determined that this field has an extremely high growth rate. At the site of the maximum intensity of the field of non-ionizing radiation, commercial surge arresters with a flexible model of surge arresters were used for experimentation. It has been found that the commercial surge arresters have an efficiency of about 20%. For the efficiency of the flexi- ble model, it was found to be slightly less than 40% (and to be achieved by the application of alpha particle radiation). Since neither of these efficiencies guarantee reliable operation of the gas-filled surge arrester, it was concluded that essential electronics in the vicinity of the fusion generator must be protected. However, since this protection can only be implemented in a fu- sion reactor, the fact remains that the environment of such a reactor is extremely contami- nated with non-ionizing radiation. Commercial surge voltages are isolated for testing since the protection of electronic circuits from fast overvoltages is a critical point for the function- ing of modern electronics.
PB  - Vinca Inst Nuclear Sci
T2  - Nuclear Technology and Radiation Protection
T1  - THE EFFICIENCY OF GAS-FILLED SURGE ARRESTERS IN THE ENVIRONMENT CONTAMINATED BY NON-IONIZING RADIATION OF FUSION REACTORS
EP  - 56
IS  - 1
SP  - 51
VL  - 37
DO  - 10.2298/NTRP2201051A
ER  - 

@article{
author = "Arandjelović, Nemanja M. and Nikezić, Dušan P. and Ramadani, Uzahir R. and Lazović, Ivan M. and Mirkov, Nikola S. and Osmokrović, Predrag V.",
year = "2022",
abstract = "The research presents an experiment with a model of an electronic generator for energy injec- tion into the plasma of a fusion reactor. By recording a non-ionizing field in the vicinity of a fusion reactor, it was determined that this field has an extremely high growth rate. At the site of the maximum intensity of the field of non-ionizing radiation, commercial surge arresters with a flexible model of surge arresters were used for experimentation. It has been found that the commercial surge arresters have an efficiency of about 20%. For the efficiency of the flexi- ble model, it was found to be slightly less than 40% (and to be achieved by the application of alpha particle radiation). Since neither of these efficiencies guarantee reliable operation of the gas-filled surge arrester, it was concluded that essential electronics in the vicinity of the fusion generator must be protected. However, since this protection can only be implemented in a fu- sion reactor, the fact remains that the environment of such a reactor is extremely contami- nated with non-ionizing radiation. Commercial surge voltages are isolated for testing since the protection of electronic circuits from fast overvoltages is a critical point for the function- ing of modern electronics.",
publisher = "Vinca Inst Nuclear Sci",
journal = "Nuclear Technology and Radiation Protection",
title = "THE EFFICIENCY OF GAS-FILLED SURGE ARRESTERS IN THE ENVIRONMENT CONTAMINATED BY NON-IONIZING RADIATION OF FUSION REACTORS",
pages = "56-51",
number = "1",
volume = "37",
doi = "10.2298/NTRP2201051A"
}

Arandjelović, N. M., Nikezić, D. P., Ramadani, U. R., Lazović, I. M., Mirkov, N. S.,& Osmokrović, P. V.. (2022). THE EFFICIENCY OF GAS-FILLED SURGE ARRESTERS IN THE ENVIRONMENT CONTAMINATED BY NON-IONIZING RADIATION OF FUSION REACTORS. in Nuclear Technology and Radiation Protection
Vinca Inst Nuclear Sci., 37(1), 51-56.
https://doi.org/10.2298/NTRP2201051A

Arandjelović NM, Nikezić DP, Ramadani UR, Lazović IM, Mirkov NS, Osmokrović PV. THE EFFICIENCY OF GAS-FILLED SURGE ARRESTERS IN THE ENVIRONMENT CONTAMINATED BY NON-IONIZING RADIATION OF FUSION REACTORS. in Nuclear Technology and Radiation Protection. 2022;37(1):51-56.
doi:10.2298/NTRP2201051A .

Arandjelović, Nemanja M., Nikezić, Dušan P., Ramadani, Uzahir R., Lazović, Ivan M., Mirkov, Nikola S., Osmokrović, Predrag V., "THE EFFICIENCY OF GAS-FILLED SURGE ARRESTERS IN THE ENVIRONMENT CONTAMINATED BY NON-IONIZING RADIATION OF FUSION REACTORS" in Nuclear Technology and Radiation Protection, 37, no. 1 (2022):51-56,
https://doi.org/10.2298/NTRP2201051A . .

TY  - JOUR
AU  - Dimović, Slavko
AU  - Nikezić, Dušan P.
AU  - Šljivić-Ivanović, Marija Z.
AU  - Jelić, Ivana V.
AU  - Stanić, Vojislav
AU  - Radenković, Mirjana
AU  - Lončar, Boris B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5893
AB  - The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - Leaching kinetics of Cs+ and Co2+ under dynamic conditions
EP  - 248
IS  - 3
SP  - 243
VL  - 34
DO  - 10.2298/NTRP190506028D
ER  - 

@article{
author = "Dimović, Slavko and Nikezić, Dušan P. and Šljivić-Ivanović, Marija Z. and Jelić, Ivana V. and Stanić, Vojislav and Radenković, Mirjana and Lončar, Boris B.",
year = "2019",
abstract = "The possibility of retaining Cs+ and Co2+ bound by immobilization processes in the cement matrix is defined as the subject of its investigation: the cement matrix formulation, the water/ cement ratio, the amount of waste, and the porosity of such a structure. Implementing the standard leaching method by Hespe the possibility of comparing different authors’ results was achieved. Diffusion and semi-empirical model were used to investigate the transport phenomenon in order to predict the leaching level for a long period of time. Leaching of Co2+ and Cs+ ions under dynamic conditions immobilized in the cement matrix dynamic conditions decreases with the increase of the sludge content, regarding porosity increase. The effects of the diffusion and surface washing are equalized, and the contribution ofthe matrix dissolution to the Cs + and Co2+ transport in the cement porous media increases, on average, for one order of magnitude. The semi-empirical model gives a better approximation for Co2+ and Cs+ leaching process for the duration ofthe experiment while both models significantly approximate leaching results in dynamic conditions. © 2019, Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "Leaching kinetics of Cs+ and Co2+ under dynamic conditions",
pages = "248-243",
number = "3",
volume = "34",
doi = "10.2298/NTRP190506028D"
}

Dimović, S., Nikezić, D. P., Šljivić-Ivanović, M. Z., Jelić, I. V., Stanić, V., Radenković, M.,& Lončar, B. B.. (2019). Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection, 34(3), 243-248.
https://doi.org/10.2298/NTRP190506028D

Dimović S, Nikezić DP, Šljivić-Ivanović MZ, Jelić IV, Stanić V, Radenković M, Lončar BB. Leaching kinetics of Cs+ and Co2+ under dynamic conditions. in Nuclear Technology and Radiation Protection. 2019;34(3):243-248.
doi:10.2298/NTRP190506028D .

Dimović, Slavko, Nikezić, Dušan P., Šljivić-Ivanović, Marija Z., Jelić, Ivana V., Stanić, Vojislav, Radenković, Mirjana, Lončar, Boris B., "Leaching kinetics of Cs+ and Co2+ under dynamic conditions" in Nuclear Technology and Radiation Protection, 34, no. 3 (2019):243-248,
https://doi.org/10.2298/NTRP190506028D . .

TY  - JOUR
AU  - Šljivić-Ivanović, Marija Z.
AU  - Jelić, Ivana V.
AU  - Lončar, Aleksandra M.
AU  - Nikezić, Dušan P.
AU  - Dimović, Slavko
AU  - Lončar, Boris B.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5855
AB  - The sorption properties of waste facade, brick, and asphalt sample towards Sr(II), Co(II), and Ni(II) ions from single and multicomponent solutions were investigated. The highest sorption capacity was found for Ni(II) ions, while the most effective sorbent was facade. Simplex Centroid Mixture Design was used in order to investigate the sorption processes of ions from solutions with different composition as well as the competition between the cations. Based on the statistical analysis results, the equations for data modeling were proposed. According to the observations, the investigated solid matrices can be effectively used for the liquid radioactive waste treatment. Furthermore, the applied methodology turned out to be an easy and operational way for the investigations of multicomponent sorption processes.
PB  - Vinca Inst Nuclear Sci
T2  - Nuclear technology and radiation protection
T1  - The Application of Experimental Design Methodology for the Investigation of Liquid Radioactive Waste Treatment
EP  - 287
IS  - 3
SP  - 281
VL  - 32
DO  - 10.2298/NTRP1703281S
ER  - 

@article{
author = "Šljivić-Ivanović, Marija Z. and Jelić, Ivana V. and Lončar, Aleksandra M. and Nikezić, Dušan P. and Dimović, Slavko and Lončar, Boris B.",
year = "2017",
abstract = "The sorption properties of waste facade, brick, and asphalt sample towards Sr(II), Co(II), and Ni(II) ions from single and multicomponent solutions were investigated. The highest sorption capacity was found for Ni(II) ions, while the most effective sorbent was facade. Simplex Centroid Mixture Design was used in order to investigate the sorption processes of ions from solutions with different composition as well as the competition between the cations. Based on the statistical analysis results, the equations for data modeling were proposed. According to the observations, the investigated solid matrices can be effectively used for the liquid radioactive waste treatment. Furthermore, the applied methodology turned out to be an easy and operational way for the investigations of multicomponent sorption processes.",
publisher = "Vinca Inst Nuclear Sci",
journal = "Nuclear technology and radiation protection",
title = "The Application of Experimental Design Methodology for the Investigation of Liquid Radioactive Waste Treatment",
pages = "287-281",
number = "3",
volume = "32",
doi = "10.2298/NTRP1703281S"
}

Šljivić-Ivanović, M. Z., Jelić, I. V., Lončar, A. M., Nikezić, D. P., Dimović, S.,& Lončar, B. B.. (2017). The Application of Experimental Design Methodology for the Investigation of Liquid Radioactive Waste Treatment. in Nuclear technology and radiation protection
Vinca Inst Nuclear Sci., 32(3), 281-287.
https://doi.org/10.2298/NTRP1703281S

Šljivić-Ivanović MZ, Jelić IV, Lončar AM, Nikezić DP, Dimović S, Lončar BB. The Application of Experimental Design Methodology for the Investigation of Liquid Radioactive Waste Treatment. in Nuclear technology and radiation protection. 2017;32(3):281-287.
doi:10.2298/NTRP1703281S .

Šljivić-Ivanović, Marija Z., Jelić, Ivana V., Lončar, Aleksandra M., Nikezić, Dušan P., Dimović, Slavko, Lončar, Boris B., "The Application of Experimental Design Methodology for the Investigation of Liquid Radioactive Waste Treatment" in Nuclear technology and radiation protection, 32, no. 3 (2017):281-287,
https://doi.org/10.2298/NTRP1703281S . .

TY  - JOUR
AU  - Nikezić, Dušan P.
AU  - Gršić, Zoran J.
AU  - Dramlić, Dragan M.
AU  - Dramlić, Stefan D.
AU  - Lončar, Boris B.
AU  - Dimović, Slavko
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5827
AB  - The aim of the study was to estimate if dust/fly ash emitted into the atmosphere from chimneys and the ash disposal sites of the thermal power plants Nikola Tesla A and B in Obrenovac could increase the concentration of PM10 in New Belgrade. TNTA and TNTB are close to Belgrade (population of 2.5 million) and it is important to estimate the amount of the pollution emitted into the atmosphere from these sources. The pollution from chimneys is estimated from yearly amounts of discharge, while the lifting of ash/coal dust was parameterized by the model. The used model is the straight-line Gaussian plume model written in the Fortran programming language. The first estimation was done using mathematical modeling for the idealized situation with prescribed winds and stability. The second estimation was done using the observed meteorological data for the whole year of 2009. With strong winds (over 40 km/h), dust will reach Belgrade in dozens of minutes, while during moderate winds (similar to 10-30 km/h), it would take about one hour to reach it. In these cases atmosphere is close to the neutral stability class. In case of weaker winds and stable atmosphere, the increase of air dust concentration in Belgrade would start after a few hours (6-10). Regarding the other two sources of pollution, coal handling piles and ash deposit sites, during strong winds ( GT 40 km/h) and neutral stability, fly ash would reach Belgrade in several dozen of minutes. (C) 2016 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.
T2  - Process Safety and Environmental Protection
T1  - Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB
EP  - 283
SP  - 274
VL  - 106
DO  - 10.1016/j.psep.2016.06.009
ER  - 

@article{
author = "Nikezić, Dušan P. and Gršić, Zoran J. and Dramlić, Dragan M. and Dramlić, Stefan D. and Lončar, Boris B. and Dimović, Slavko",
year = "2017",
abstract = "The aim of the study was to estimate if dust/fly ash emitted into the atmosphere from chimneys and the ash disposal sites of the thermal power plants Nikola Tesla A and B in Obrenovac could increase the concentration of PM10 in New Belgrade. TNTA and TNTB are close to Belgrade (population of 2.5 million) and it is important to estimate the amount of the pollution emitted into the atmosphere from these sources. The pollution from chimneys is estimated from yearly amounts of discharge, while the lifting of ash/coal dust was parameterized by the model. The used model is the straight-line Gaussian plume model written in the Fortran programming language. The first estimation was done using mathematical modeling for the idealized situation with prescribed winds and stability. The second estimation was done using the observed meteorological data for the whole year of 2009. With strong winds (over 40 km/h), dust will reach Belgrade in dozens of minutes, while during moderate winds (similar to 10-30 km/h), it would take about one hour to reach it. In these cases atmosphere is close to the neutral stability class. In case of weaker winds and stable atmosphere, the increase of air dust concentration in Belgrade would start after a few hours (6-10). Regarding the other two sources of pollution, coal handling piles and ash deposit sites, during strong winds ( GT 40 km/h) and neutral stability, fly ash would reach Belgrade in several dozen of minutes. (C) 2016 Published by Elsevier B.V. on behalf of Institution of Chemical Engineers.",
journal = "Process Safety and Environmental Protection",
title = "Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB",
pages = "283-274",
volume = "106",
doi = "10.1016/j.psep.2016.06.009"
}

Nikezić, D. P., Gršić, Z. J., Dramlić, D. M., Dramlić, S. D., Lončar, B. B.,& Dimović, S.. (2017). Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB. in Process Safety and Environmental Protection, 106, 274-283.
https://doi.org/10.1016/j.psep.2016.06.009

Nikezić DP, Gršić ZJ, Dramlić DM, Dramlić SD, Lončar BB, Dimović S. Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB. in Process Safety and Environmental Protection. 2017;106:274-283.
doi:10.1016/j.psep.2016.06.009 .

Nikezić, Dušan P., Gršić, Zoran J., Dramlić, Dragan M., Dramlić, Stefan D., Lončar, Boris B., Dimović, Slavko, "Modeling air concentration of fly ash in Belgrade, emitted from thermal power plants TNTA and TNTB" in Process Safety and Environmental Protection, 106 (2017):274-283,
https://doi.org/10.1016/j.psep.2016.06.009 . .