TY  - JOUR
AU  - Plećaš, Ilija B.
AU  - Dimović, Slavko
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4624
AB  - An optimization of mortar (as matrix), improved with bentonite clay, used for immobilization of radionuclides (60)Co, (137)Cs, (85)Sr and (54)Mn, is presented. A relatively simple mathematical model is given, which permits minimization of leach rate and permeability and maximization of compressive strength. An optimal solution, based on experimental data, is given. These results will be used for a future Serbian radioactive waste disposal center. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Progress in Nuclear Energy
T1  - Mathematical modeling of physico-chemical characteristics of mortar-waste composites in radioactive waste management
VL  - 54
IS  - 1
SP  - 1
EP  - 4
DO  - 10.1016/j.pnucene.2011.09.010
ER  - 

@article{
author = "Plećaš, Ilija B. and Dimović, Slavko",
year = "2012",
abstract = "An optimization of mortar (as matrix), improved with bentonite clay, used for immobilization of radionuclides (60)Co, (137)Cs, (85)Sr and (54)Mn, is presented. A relatively simple mathematical model is given, which permits minimization of leach rate and permeability and maximization of compressive strength. An optimal solution, based on experimental data, is given. These results will be used for a future Serbian radioactive waste disposal center. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Progress in Nuclear Energy",
title = "Mathematical modeling of physico-chemical characteristics of mortar-waste composites in radioactive waste management",
volume = "54",
number = "1",
pages = "1-4",
doi = "10.1016/j.pnucene.2011.09.010"
}

Plećaš, I. B.,& Dimović, S.. (2012). Mathematical modeling of physico-chemical characteristics of mortar-waste composites in radioactive waste management. in Progress in Nuclear Energy, 54(1), 1-4.
https://doi.org/10.1016/j.pnucene.2011.09.010

Plećaš IB, Dimović S. Mathematical modeling of physico-chemical characteristics of mortar-waste composites in radioactive waste management. in Progress in Nuclear Energy. 2012;54(1):1-4.
doi:10.1016/j.pnucene.2011.09.010 .

Plećaš, Ilija B., Dimović, Slavko, "Mathematical modeling of physico-chemical characteristics of mortar-waste composites in radioactive waste management" in Progress in Nuclear Energy, 54, no. 1 (2012):1-4,
https://doi.org/10.1016/j.pnucene.2011.09.010 . .

TY  - JOUR
AU  - Borka, Duško
AU  - Radović, Ivan
AU  - Mišković, Zoran L.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6927
AB  - We calculate the stopping and image forces on a point charge moving over a single-layer graphene grown on an SiC substrate, and compare them with forces arising when a charge moves over a two-dimensional electron gas (2DEG) in an Ag monolayer on a Si substrate. Given that both these systems constitute a one-atom thick 2DEG, major differences are found in the velocity and distance dependencies of the two forces owing to different electronic structures of the respective 2DEG. Within the massless Dirac fermion picture of graphenes pi electron bands, the inter-band single particle excitations are found to affect the stopping and image forces at high speeds in a substantial way, whereas such excitations are absent in the 2DEG of the metallic layer described by a single parabolic band. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Dynamic polarization of graphene by moving external charges: Comparison with 2D electron gas
VL  - 269
IS  - 11
SP  - 1225
EP  - 1228
DO  - 10.1016/j.nimb.2010.10.021
ER  - 

@article{
author = "Borka, Duško and Radović, Ivan and Mišković, Zoran L.",
year = "2011",
abstract = "We calculate the stopping and image forces on a point charge moving over a single-layer graphene grown on an SiC substrate, and compare them with forces arising when a charge moves over a two-dimensional electron gas (2DEG) in an Ag monolayer on a Si substrate. Given that both these systems constitute a one-atom thick 2DEG, major differences are found in the velocity and distance dependencies of the two forces owing to different electronic structures of the respective 2DEG. Within the massless Dirac fermion picture of graphenes pi electron bands, the inter-band single particle excitations are found to affect the stopping and image forces at high speeds in a substantial way, whereas such excitations are absent in the 2DEG of the metallic layer described by a single parabolic band. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Dynamic polarization of graphene by moving external charges: Comparison with 2D electron gas",
volume = "269",
number = "11",
pages = "1225-1228",
doi = "10.1016/j.nimb.2010.10.021"
}

Borka, D., Radović, I.,& Mišković, Z. L.. (2011). Dynamic polarization of graphene by moving external charges: Comparison with 2D electron gas. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(11), 1225-1228.
https://doi.org/10.1016/j.nimb.2010.10.021

Borka D, Radović I, Mišković ZL. Dynamic polarization of graphene by moving external charges: Comparison with 2D electron gas. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(11):1225-1228.
doi:10.1016/j.nimb.2010.10.021 .

Borka, Duško, Radović, Ivan, Mišković, Zoran L., "Dynamic polarization of graphene by moving external charges: Comparison with 2D electron gas" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 11 (2011):1225-1228,
https://doi.org/10.1016/j.nimb.2010.10.021 . .

TY  - JOUR
AU  - Lazarević-Pašti, Tamara
AU  - Čolović, Mirjana B.
AU  - Savić, Jasmina
AU  - Momić, Tatjana
AU  - Vasić, Vesna M.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4332
AB  - The aim of the work was to investigate the in vitro oxidation of diazinon and malathion, organophosphorous pesticides (OPs) containing phosphorthioate group, catalyzed by enzyme myeloperoxidase (MPO). The oxidation was performed in the presence of hydrogen peroxide. The products were identified as oxon derivatives (phosphates), where the sulfur atom from thioate group was substituted by an oxygen atom. No hydrolysis products were detected after enzyme - induced oxidation. The oxidation efficiency was controlled using acethylcholinesterase (AChE) bioassay for determination of oxon derivatives concentration. The influence of OPs concentration, incubation time of OPs with MPO, as well as MPO concentration on the yield of oxo forms was investigated. Kinetic constants of MPO in oxidation of malathion and diazinon were estimated. The maximum concentration of oxo forms was achieved after 10 min incubation of OPs in 50 mM phosphate buffer (pH 6.0) with 100 nM MPO. (C) 2011 Elsevier Inc. All rights reserved.
T2  - Pesticide Biochemistry and Physiology
T1  - Oxidation of diazinon and malathion by myeloperoxidase
VL  - 100
IS  - 2
SP  - 140
EP  - 144
DO  - 10.1016/j.pestbp.2011.03.001
ER  - 

@article{
author = "Lazarević-Pašti, Tamara and Čolović, Mirjana B. and Savić, Jasmina and Momić, Tatjana and Vasić, Vesna M.",
year = "2011",
abstract = "The aim of the work was to investigate the in vitro oxidation of diazinon and malathion, organophosphorous pesticides (OPs) containing phosphorthioate group, catalyzed by enzyme myeloperoxidase (MPO). The oxidation was performed in the presence of hydrogen peroxide. The products were identified as oxon derivatives (phosphates), where the sulfur atom from thioate group was substituted by an oxygen atom. No hydrolysis products were detected after enzyme - induced oxidation. The oxidation efficiency was controlled using acethylcholinesterase (AChE) bioassay for determination of oxon derivatives concentration. The influence of OPs concentration, incubation time of OPs with MPO, as well as MPO concentration on the yield of oxo forms was investigated. Kinetic constants of MPO in oxidation of malathion and diazinon were estimated. The maximum concentration of oxo forms was achieved after 10 min incubation of OPs in 50 mM phosphate buffer (pH 6.0) with 100 nM MPO. (C) 2011 Elsevier Inc. All rights reserved.",
journal = "Pesticide Biochemistry and Physiology",
title = "Oxidation of diazinon and malathion by myeloperoxidase",
volume = "100",
number = "2",
pages = "140-144",
doi = "10.1016/j.pestbp.2011.03.001"
}

Lazarević-Pašti, T., Čolović, M. B., Savić, J., Momić, T.,& Vasić, V. M.. (2011). Oxidation of diazinon and malathion by myeloperoxidase. in Pesticide Biochemistry and Physiology, 100(2), 140-144.
https://doi.org/10.1016/j.pestbp.2011.03.001

Lazarević-Pašti T, Čolović MB, Savić J, Momić T, Vasić VM. Oxidation of diazinon and malathion by myeloperoxidase. in Pesticide Biochemistry and Physiology. 2011;100(2):140-144.
doi:10.1016/j.pestbp.2011.03.001 .

Lazarević-Pašti, Tamara, Čolović, Mirjana B., Savić, Jasmina, Momić, Tatjana, Vasić, Vesna M., "Oxidation of diazinon and malathion by myeloperoxidase" in Pesticide Biochemistry and Physiology, 100, no. 2 (2011):140-144,
https://doi.org/10.1016/j.pestbp.2011.03.001 . .

TY  - JOUR
AU  - Petrović, Suzana
AU  - Peruško, Davor
AU  - Milovanović, Dubravka S.
AU  - Kovač, Janez
AU  - Čekada, Miha
AU  - Panjan, Peter
AU  - Gaković, Biljana M.
AU  - Trtica, Milan
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4044
AB  - A study of morphological and composition changes of the WTi/Si system induced by nanosecond and picosecond laser pulses is presented. A 190 nm thick WTi film was deposited on a silicon substrate of n-type (100). The pulsed laser systems used were: nanosecond TEA CO(2) laser (emission, 10.6 mu m; pulse FWHM; pulse duration 120 ns) and picosecond Nd:YAG laser (emission, 532 nm; pulse FWHM; pulse duration 40 ps). During experiments the used fluences (Phi) had similar values, Phi(1) = 20 J cm(-2) in case of the TEA CO(2) laser and Phi(2) = 16 J cm(-2) for the Nd: YAG laser. The laser-induced morphological and composition modifications showed a dependence on pulse duration. Generally, the following morphological changes were observed: (i) ablation/exfoliation of the WTi thin film, (ii) appearance of hydrodynamic features such as resolidified material, and (iii) formation of nano-sized grains and globules. Overall morphological modifications were more pronounced after the picosecond laser action. The surface composition analysis showed a quite different distribution of sample components depending on the pulse duration. Formation of the silicon dioxide (SiO(2)) was recorded only in the case of irradiation of the WTi/Si system by picosecond laser pulses.
T2  - Journal of Optics
T1  - Effects of the pulse duration in laser modification of nano-sized WTi film on Si substrate
VL  - 12
IS  - 7
DO  - 10.1088/2040-8978/12/7/075602
ER  - 

@article{
author = "Petrović, Suzana and Peruško, Davor and Milovanović, Dubravka S. and Kovač, Janez and Čekada, Miha and Panjan, Peter and Gaković, Biljana M. and Trtica, Milan",
year = "2010",
abstract = "A study of morphological and composition changes of the WTi/Si system induced by nanosecond and picosecond laser pulses is presented. A 190 nm thick WTi film was deposited on a silicon substrate of n-type (100). The pulsed laser systems used were: nanosecond TEA CO(2) laser (emission, 10.6 mu m; pulse FWHM; pulse duration 120 ns) and picosecond Nd:YAG laser (emission, 532 nm; pulse FWHM; pulse duration 40 ps). During experiments the used fluences (Phi) had similar values, Phi(1) = 20 J cm(-2) in case of the TEA CO(2) laser and Phi(2) = 16 J cm(-2) for the Nd: YAG laser. The laser-induced morphological and composition modifications showed a dependence on pulse duration. Generally, the following morphological changes were observed: (i) ablation/exfoliation of the WTi thin film, (ii) appearance of hydrodynamic features such as resolidified material, and (iii) formation of nano-sized grains and globules. Overall morphological modifications were more pronounced after the picosecond laser action. The surface composition analysis showed a quite different distribution of sample components depending on the pulse duration. Formation of the silicon dioxide (SiO(2)) was recorded only in the case of irradiation of the WTi/Si system by picosecond laser pulses.",
journal = "Journal of Optics",
title = "Effects of the pulse duration in laser modification of nano-sized WTi film on Si substrate",
volume = "12",
number = "7",
doi = "10.1088/2040-8978/12/7/075602"
}

Petrović, S., Peruško, D., Milovanović, D. S., Kovač, J., Čekada, M., Panjan, P., Gaković, B. M.,& Trtica, M.. (2010). Effects of the pulse duration in laser modification of nano-sized WTi film on Si substrate. in Journal of Optics, 12(7).
https://doi.org/10.1088/2040-8978/12/7/075602

Petrović S, Peruško D, Milovanović DS, Kovač J, Čekada M, Panjan P, Gaković BM, Trtica M. Effects of the pulse duration in laser modification of nano-sized WTi film on Si substrate. in Journal of Optics. 2010;12(7).
doi:10.1088/2040-8978/12/7/075602 .

Petrović, Suzana, Peruško, Davor, Milovanović, Dubravka S., Kovač, Janez, Čekada, Miha, Panjan, Peter, Gaković, Biljana M., Trtica, Milan, "Effects of the pulse duration in laser modification of nano-sized WTi film on Si substrate" in Journal of Optics, 12, no. 7 (2010),
https://doi.org/10.1088/2040-8978/12/7/075602 . .

TY  - JOUR
AU  - Jović, Nataša G.
AU  - Jokanović, Vukoman R.
AU  - Jagličić, Zvonko
AU  - Branković, Dušan
AU  - Milosavljević, Momir
AU  - Makovec, Darko
AU  - Babić-Stojić, Branka S.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4081
AB  - Nanocomposite made of 10 wt% of Co2.4Al0.6O4 particles dispersed in an amorphous SiO2 matrix has been synthesized by a solgel method. X-ray diffraction, transmission electron microscopy and magnetic measurements have been used to characterize the properties of nanocomposite. Most of the particles are well crystallized and have an average diameter below 100 nm. Smaller particles with size below 10 nm have also been observed. A large value of the effective magnetic moment per Co2+ ion of 5.08 mu B and negative and the low CurieWeiss paramagnetic temperature Theta similar to -6 K, obtained from the high-temperature susceptibility data, indicate a possible mixing of Co2+ and Co3+ ions between tetrahedral and octahedral sites of the spinel crystal lattice. The measurements of static and dynamic magnetic susceptibilities have shown that Co2.4Al0.6O4 particles in SiO2 matrix display a spin glass behavior at low temperatures. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method
VL  - 322
IS  - 21
SP  - 3271
EP  - 3277
DO  - 10.1016/j.jmmm.2010.06.006
ER  - 

@article{
author = "Jović, Nataša G. and Jokanović, Vukoman R. and Jagličić, Zvonko and Branković, Dušan and Milosavljević, Momir and Makovec, Darko and Babić-Stojić, Branka S.",
year = "2010",
abstract = "Nanocomposite made of 10 wt% of Co2.4Al0.6O4 particles dispersed in an amorphous SiO2 matrix has been synthesized by a solgel method. X-ray diffraction, transmission electron microscopy and magnetic measurements have been used to characterize the properties of nanocomposite. Most of the particles are well crystallized and have an average diameter below 100 nm. Smaller particles with size below 10 nm have also been observed. A large value of the effective magnetic moment per Co2+ ion of 5.08 mu B and negative and the low CurieWeiss paramagnetic temperature Theta similar to -6 K, obtained from the high-temperature susceptibility data, indicate a possible mixing of Co2+ and Co3+ ions between tetrahedral and octahedral sites of the spinel crystal lattice. The measurements of static and dynamic magnetic susceptibilities have shown that Co2.4Al0.6O4 particles in SiO2 matrix display a spin glass behavior at low temperatures. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method",
volume = "322",
number = "21",
pages = "3271-3277",
doi = "10.1016/j.jmmm.2010.06.006"
}

Jović, N. G., Jokanović, V. R., Jagličić, Z., Branković, D., Milosavljević, M., Makovec, D.,& Babić-Stojić, B. S.. (2010). Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method. in Journal of Magnetism and Magnetic Materials, 322(21), 3271-3277.
https://doi.org/10.1016/j.jmmm.2010.06.006

Jović NG, Jokanović VR, Jagličić Z, Branković D, Milosavljević M, Makovec D, Babić-Stojić BS. Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method. in Journal of Magnetism and Magnetic Materials. 2010;322(21):3271-3277.
doi:10.1016/j.jmmm.2010.06.006 .

Jović, Nataša G., Jokanović, Vukoman R., Jagličić, Zvonko, Branković, Dušan, Milosavljević, Momir, Makovec, Darko, Babić-Stojić, Branka S., "Magnetic properties of Co2.4Al0.6O4/SiO2 nanocomposite obtained via sol-gel method" in Journal of Magnetism and Magnetic Materials, 322, no. 21 (2010):3271-3277,
https://doi.org/10.1016/j.jmmm.2010.06.006 . .