Jordanov, Dragana

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orcid::0000-0001-7571-8445
  • Jordanov, Dragana (18)
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Author's Bibliography

Theoretical study of AlN mechanical behaviour under high pressure regime

Zagorac, Dejan; Zagorac, Jelena B.; Đukić, Miloš B.; Jordanov, Dragana; Matović, Branko

(2019)

TY  - JOUR
AU  - Zagorac, Dejan
AU  - Zagorac, Jelena B.
AU  - Đukić, Miloš B.
AU  - Jordanov, Dragana
AU  - Matović, Branko
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8370
AB  - Aluminum nitride (AlN) is a very important industrial and technological material due to its properties, e.g. high melting point, thermal conductivity, electrical resistivity, mechanical strength, and corrosion resistance. This work represents detailed study of mechanical and elastic properties of AlN structures under compression. Theoretical modeling has been performed using quantum mechanical calculations and computed values were compared with the experimental results when available. Structural properties, volume change and strain (dilatation) under high pressure has been investigated for various AlN phases. Elastic constants Cij for wurtzite, sphalerite and rock salt structure were calculated under pressure. Important mechanical properties were investigated; bulk modulus B, shear modulus K, Young's modulus E, Vickers hardness Hv, anisotropy, stiffness, Poisson's ratio, brittleness/ductility, in order to investigate influence of pressure on wurtzite, sphalerite and rock salt based AlN materials. Detailed analysis of anisotropic mechanical properties under compression has been performed, as well as relationship between B, K, E and Hv, in order to offer novel technological and industrial applications of AlN. © 2019 Elsevier Ltd
T2  - Theoretical and Applied Fracture Mechanics
T1  - Theoretical study of AlN mechanical behaviour under high pressure regime
VL  - 103
SP  - 102289
DO  - 10.1016/j.tafmec.2019.102289
ER  - 
@article{
author = "Zagorac, Dejan and Zagorac, Jelena B. and Đukić, Miloš B. and Jordanov, Dragana and Matović, Branko",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8370",
abstract = "Aluminum nitride (AlN) is a very important industrial and technological material due to its properties, e.g. high melting point, thermal conductivity, electrical resistivity, mechanical strength, and corrosion resistance. This work represents detailed study of mechanical and elastic properties of AlN structures under compression. Theoretical modeling has been performed using quantum mechanical calculations and computed values were compared with the experimental results when available. Structural properties, volume change and strain (dilatation) under high pressure has been investigated for various AlN phases. Elastic constants Cij for wurtzite, sphalerite and rock salt structure were calculated under pressure. Important mechanical properties were investigated; bulk modulus B, shear modulus K, Young's modulus E, Vickers hardness Hv, anisotropy, stiffness, Poisson's ratio, brittleness/ductility, in order to investigate influence of pressure on wurtzite, sphalerite and rock salt based AlN materials. Detailed analysis of anisotropic mechanical properties under compression has been performed, as well as relationship between B, K, E and Hv, in order to offer novel technological and industrial applications of AlN. © 2019 Elsevier Ltd",
journal = "Theoretical and Applied Fracture Mechanics",
title = "Theoretical study of AlN mechanical behaviour under high pressure regime",
volume = "103",
pages = "102289",
doi = "10.1016/j.tafmec.2019.102289"
}
Zagorac, D., Zagorac, J. B., Đukić, M. B., Jordanov, D.,& Matović, B. (2019). Theoretical study of AlN mechanical behaviour under high pressure regime.
Theoretical and Applied Fracture Mechanics, 103, 102289.
https://doi.org/10.1016/j.tafmec.2019.102289
Zagorac D, Zagorac JB, Đukić MB, Jordanov D, Matović B. Theoretical study of AlN mechanical behaviour under high pressure regime. Theoretical and Applied Fracture Mechanics. 2019;103:102289
Zagorac Dejan, Zagorac Jelena B., Đukić Miloš B., Jordanov Dragana, Matović Branko, "Theoretical study of AlN mechanical behaviour under high pressure regime" Theoretical and Applied Fracture Mechanics, 103 (2019):102289,
https://doi.org/10.1016/j.tafmec.2019.102289 .
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Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions

Zagorac, Dejan; Zagorac, Jelena B.; Đukić, Miloš B.; Jordanov, Dragana; Rosić, Milena; Čebela, Maria; Luković, J; Maksimović, Vesna; Matović, Branko

(2018)

TY  - CONF
AU  - Zagorac, Dejan
AU  - Zagorac, Jelena B.
AU  - Đukić, Miloš B.
AU  - Jordanov, Dragana
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Luković, J
AU  - Maksimović, Vesna
AU  - Matović, Branko
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2452321618304530
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8165
AB  - One of the recent trends in materials science and technology is the research of the behavior of the materials under the extreme conditions both on the theoretical and experimental basis. There are limitations of the experimental methods, however, theoretical approach can be used as a supplement to the experimental results. As a consequence, in the last two decades a vast number of structure prediction calculations have been performed on chemical systems, focusing on the high-pressure and high temperature phases. In this work, we would like to present several computational studies and their connection to the actual synthesis routes: lead sulfide (PbS), barium sulfide (BaS), and aluminum nitride (AlN). The investigated compounds were calculated on ab initio level using the most advanced tools in quantum chemistry and computational material science including Hartree-Fock Theory, Density Functional Theory (DFT) and Hybrid (B3LYP) Approximation. Their structural, mechanical, elastic and vibrational properties have been investigated and in addition, we show structure candidates as the function of size, pressure and temperature and not previously observed in any of the investigated materials thus creating new possibilities for synthesis of advanced materials with improved physical, chemical, and/or mechanical properties. © 2018 The Authors.
C3  - Procedia Structural Integrity
T1  - Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions
VL  - 13
SP  - 2005
EP  - 2010
DO  - 10.1016/j.prostr.2018.12.216
ER  - 
@conference{
author = "Zagorac, Dejan and Zagorac, Jelena B. and Đukić, Miloš B. and Jordanov, Dragana and Rosić, Milena and Čebela, Maria and Luković, J and Maksimović, Vesna and Matović, Branko",
year = "2018",
url = "https://linkinghub.elsevier.com/retrieve/pii/S2452321618304530, http://vinar.vin.bg.ac.rs/handle/123456789/8165",
abstract = "One of the recent trends in materials science and technology is the research of the behavior of the materials under the extreme conditions both on the theoretical and experimental basis. There are limitations of the experimental methods, however, theoretical approach can be used as a supplement to the experimental results. As a consequence, in the last two decades a vast number of structure prediction calculations have been performed on chemical systems, focusing on the high-pressure and high temperature phases. In this work, we would like to present several computational studies and their connection to the actual synthesis routes: lead sulfide (PbS), barium sulfide (BaS), and aluminum nitride (AlN). The investigated compounds were calculated on ab initio level using the most advanced tools in quantum chemistry and computational material science including Hartree-Fock Theory, Density Functional Theory (DFT) and Hybrid (B3LYP) Approximation. Their structural, mechanical, elastic and vibrational properties have been investigated and in addition, we show structure candidates as the function of size, pressure and temperature and not previously observed in any of the investigated materials thus creating new possibilities for synthesis of advanced materials with improved physical, chemical, and/or mechanical properties. © 2018 The Authors.",
journal = "Procedia Structural Integrity",
title = "Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions",
volume = "13",
pages = "2005-2010",
doi = "10.1016/j.prostr.2018.12.216"
}
Zagorac, D., Zagorac, J. B., Đukić, M. B., Jordanov, D., Rosić, M., Čebela, M., Luković, J., Maksimović, V.,& Matović, B. (2018). Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions.
Procedia Structural Integrity, 13, 2005-2010.
https://doi.org/10.1016/j.prostr.2018.12.216
Zagorac D, Zagorac JB, Đukić MB, Jordanov D, Rosić M, Čebela M, Luković J, Maksimović V, Matović B. Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions. Procedia Structural Integrity. 2018;13:2005-2010
Zagorac Dejan, Zagorac Jelena B., Đukić Miloš B., Jordanov Dragana, Rosić Milena, Čebela Maria, Luković J, Maksimović Vesna, Matović Branko, "Theoretical investigation of structural, mechanical, elastic and vibrational properties of advanced materials under extreme conditions" Procedia Structural Integrity, 13 (2018):2005-2010,
https://doi.org/10.1016/j.prostr.2018.12.216 .
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Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure

Čebela, Maria; Hercigonja, Radmila V.; Rosić, Milena; Zagorac, Dejan; Luković, Jelena M.; Zagorac, Jelena B.; Jordanov, Dragana; Matović, Branko

(Belgrade : Serbian Academy of Sciences and Arts, 2018)

TY  - CONF
AU  - Čebela, Maria
AU  - Hercigonja, Radmila V.
AU  - Rosić, Milena
AU  - Zagorac, Dejan
AU  - Luković, Jelena M.
AU  - Zagorac, Jelena B.
AU  - Jordanov, Dragana
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8732
AB  - Bismuth ferrite (BiFeO3) has recently drawn attention due to its outstanding multifunctional properties, as well as for being a lead-free ceramic material. In the current study, BiFeO3 nanoparticles were synthesized by strictly controlled hydrothermal process. High geometric molded particles of a small size and with high degree of purity (99.74 %) were obtained. We used nitrates of bismuth and iron as well as 8M potassium hydroxide as a basis for synthesis. The results of the X-ray diffraction study of the obtained polycrystalline material show single-phase bismuth ferrite that crystallizes with a rhombohedral lattice. Using the Rietveld method it has been determined that the particles of the synthesized powder are in a nanometric range with a particle size of about 30 nm. It was found that all reflec-tions of the obtained bismuth ferrite belong to the rhombohedral α-BiFeO3 phase which crystallizes in the space group R3c (No. 161). In addition, electronic and magnetic properties of BiFeO3 were investigated using combination of experimental and theoretical methods. HRTEM analysis confirmed existence of twin stacking faults, which are responsible for enhanced magnetic properties. EPR measurements suggested existence of electrons trapped by vacancies or defects. It has been pro-posed that Fe3+−OV defect complex could be created at elevated temperatures fol-lowed by formation of trivalent Fe ions, which intensely provide local 3d moments. The magnetic behavior of the synthesized material was studied by means of SQUID device and using a vibrating sample magnetometer (VSM). The temperature dependence of the magnetization shows the antiferomagnetic-paramagnetic phase transition at the temperature of TN = 220K, while below this temperature weak ferro-magnetic behavior has been detected. Theoretical studies were performed using a full potential linearized augmented plane-waves plus local orbital (FP(L)APW+lo) method, based on the density functional theory (DFT). In addition, a structure prediction has been performed and 11 additional BiFeO3 modifications have been pro-posed. In the next stage, an ab initio optimization of predicted structures has been performed and the structure of the γ-phase has been elucidated.
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure
SP  - 99
EP  - 100
ER  - 
@conference{
author = "Čebela, Maria and Hercigonja, Radmila V. and Rosić, Milena and Zagorac, Dejan and Luković, Jelena M. and Zagorac, Jelena B. and Jordanov, Dragana and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8732",
abstract = "Bismuth ferrite (BiFeO3) has recently drawn attention due to its outstanding multifunctional properties, as well as for being a lead-free ceramic material. In the current study, BiFeO3 nanoparticles were synthesized by strictly controlled hydrothermal process. High geometric molded particles of a small size and with high degree of purity (99.74 %) were obtained. We used nitrates of bismuth and iron as well as 8M potassium hydroxide as a basis for synthesis. The results of the X-ray diffraction study of the obtained polycrystalline material show single-phase bismuth ferrite that crystallizes with a rhombohedral lattice. Using the Rietveld method it has been determined that the particles of the synthesized powder are in a nanometric range with a particle size of about 30 nm. It was found that all reflec-tions of the obtained bismuth ferrite belong to the rhombohedral α-BiFeO3 phase which crystallizes in the space group R3c (No. 161). In addition, electronic and magnetic properties of BiFeO3 were investigated using combination of experimental and theoretical methods. HRTEM analysis confirmed existence of twin stacking faults, which are responsible for enhanced magnetic properties. EPR measurements suggested existence of electrons trapped by vacancies or defects. It has been pro-posed that Fe3+−OV defect complex could be created at elevated temperatures fol-lowed by formation of trivalent Fe ions, which intensely provide local 3d moments. The magnetic behavior of the synthesized material was studied by means of SQUID device and using a vibrating sample magnetometer (VSM). The temperature dependence of the magnetization shows the antiferomagnetic-paramagnetic phase transition at the temperature of TN = 220K, while below this temperature weak ferro-magnetic behavior has been detected. Theoretical studies were performed using a full potential linearized augmented plane-waves plus local orbital (FP(L)APW+lo) method, based on the density functional theory (DFT). In addition, a structure prediction has been performed and 11 additional BiFeO3 modifications have been pro-posed. In the next stage, an ab initio optimization of predicted structures has been performed and the structure of the γ-phase has been elucidated.",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure",
pages = "99-100"
}
Čebela, M., Hercigonja, R. V., Rosić, M., Zagorac, D., Luković, J. M., Zagorac, J. B., Jordanov, D.,& Matović, B. (2018). Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure.
Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 99-100.
Čebela M, Hercigonja RV, Rosić M, Zagorac D, Luković JM, Zagorac JB, Jordanov D, Matović B. Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure. Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:99-100
Čebela Maria, Hercigonja Radmila V., Rosić Milena, Zagorac Dejan, Luković Jelena M., Zagorac Jelena B., Jordanov Dragana, Matović Branko, "Comprehensive Characterization of Multiferroic BiFeO3 Powder Fabricated by the Hydrothermal Procedure" Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):99-100

Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method

Rosić, Milena; Zagorac, Dejan; Čebela, Maria; Jordanov, Dragana; Zagorac, Jelena B.; Luković, Jelena; Zarubica, Aleksandra R.; Matović, Branko

(Belgrade : Serbian Academy of Sciences and Arts, 2018)

TY  - CONF
AU  - Rosić, Milena
AU  - Zagorac, Dejan
AU  - Čebela, Maria
AU  - Jordanov, Dragana
AU  - Zagorac, Jelena B.
AU  - Luković, Jelena
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8738
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method
SP  - 192
EP  - 194
ER  - 
@conference{
author = "Rosić, Milena and Zagorac, Dejan and Čebela, Maria and Jordanov, Dragana and Zagorac, Jelena B. and Luković, Jelena and Zarubica, Aleksandra R. and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8738",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method",
pages = "192-194"
}
Rosić, M., Zagorac, D., Čebela, M., Jordanov, D., Zagorac, J. B., Luković, J., Zarubica, A. R.,& Matović, B. (2018). Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method.
Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 192-194.
Rosić M, Zagorac D, Čebela M, Jordanov D, Zagorac JB, Luković J, Zarubica AR, Matović B. Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method. Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:192-194
Rosić Milena, Zagorac Dejan, Čebela Maria, Jordanov Dragana, Zagorac Jelena B., Luković Jelena, Zarubica Aleksandra R., Matović Branko, "Synthesis, Calcination and Characterization of CoMoO4 Nanopowders by GNP Method" Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):192-194

Compilation of errors in nuclear parameters for radionuclide Eu-152

Jordanov, Dragana; Nađđerđ, Laslo; Rosić, Milena

(2018)

TY  - JOUR
AU  - Jordanov, Dragana
AU  - Nađđerđ, Laslo
AU  - Rosić, Milena
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0168900218305904
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7713
AB  - Certain irregularities have been observed in the formation of probability matrices when applying our method for calculating the coincident summing effects occurringin the gamma spectroscopy of radionuclides. They have to do with the fact that, at certain energy levels, transition intensities are not balanced. As this affects the accuracy of our calculation, we have examined the source of those irregularities. This paper presents comments on the evaluation of the152Eu decay data. The paper offers an analysis of the errors and mistakes that the evaluators have made, in order to facilitate the future work in gamma spectroscopy.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
T1  - Compilation of errors in nuclear parameters for radionuclide Eu-152
VL  - 899
SP  - 49
EP  - 51
DO  - 10.1016/j.nima.2018.05.005
ER  - 
@article{
author = "Jordanov, Dragana and Nađđerđ, Laslo and Rosić, Milena",
year = "2018",
url = "https://linkinghub.elsevier.com/retrieve/pii/S0168900218305904, http://vinar.vin.bg.ac.rs/handle/123456789/7713",
abstract = "Certain irregularities have been observed in the formation of probability matrices when applying our method for calculating the coincident summing effects occurringin the gamma spectroscopy of radionuclides. They have to do with the fact that, at certain energy levels, transition intensities are not balanced. As this affects the accuracy of our calculation, we have examined the source of those irregularities. This paper presents comments on the evaluation of the152Eu decay data. The paper offers an analysis of the errors and mistakes that the evaluators have made, in order to facilitate the future work in gamma spectroscopy.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
title = "Compilation of errors in nuclear parameters for radionuclide Eu-152",
volume = "899",
pages = "49-51",
doi = "10.1016/j.nima.2018.05.005"
}
Jordanov, D., Nađđerđ, L.,& Rosić, M. (2018). Compilation of errors in nuclear parameters for radionuclide Eu-152.
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 899, 49-51.
https://doi.org/10.1016/j.nima.2018.05.005
Jordanov D, Nađđerđ L, Rosić M. Compilation of errors in nuclear parameters for radionuclide Eu-152. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2018;899:49-51
Jordanov Dragana, Nađđerđ Laslo, Rosić Milena, "Compilation of errors in nuclear parameters for radionuclide Eu-152" Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 899 (2018):49-51,
https://doi.org/10.1016/j.nima.2018.05.005 .
1

Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method

Rosić, Milena; Zarubica, Aleksandra R.; Šaponjić, Aleksandra; Babić, Biljana M.; Zagorac, Jelena B.; Jordanov, Dragana; Matović, Branko

(2018)

TY  - JOUR
AU  - Rosić, Milena
AU  - Zarubica, Aleksandra R.
AU  - Šaponjić, Aleksandra
AU  - Babić, Biljana M.
AU  - Zagorac, Jelena B.
AU  - Jordanov, Dragana
AU  - Matović, Branko
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1876
AB  - The synthesis route by solution combustion, a glycine nitrate procedure (GNP) of CoMoO4 nanopowders by a glycine as a fuel and as a complexant was examined concerning the photocatalytic aspects and powder characteristics. The synthesized samples were investigated by differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Ultraviolet-Visible (UV/Vis) spectroscopy and nitrogen adsorption method. In this work, we presented a simple and effective method for controlling the composition and morphology of CoMoO4. A single-phase a and 13 crystalline form of CoMoO4 compound was confirmed by X-ray diffraction (XRD). The photocatalytic activity of CoMoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. In addition, the obtained specific CoMoO4 nanopowder demonstrated acceptable specific surface area, which can be of particular importance for the photocatalytic processes.
T2  - Materials Research Bulletin
T1  - Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method
VL  - 98
SP  - 111
EP  - 120
DO  - 10.1016/j.materresbull.2017.10.015
ER  - 
@article{
author = "Rosić, Milena and Zarubica, Aleksandra R. and Šaponjić, Aleksandra and Babić, Biljana M. and Zagorac, Jelena B. and Jordanov, Dragana and Matović, Branko",
year = "2018",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1876",
abstract = "The synthesis route by solution combustion, a glycine nitrate procedure (GNP) of CoMoO4 nanopowders by a glycine as a fuel and as a complexant was examined concerning the photocatalytic aspects and powder characteristics. The synthesized samples were investigated by differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Ultraviolet-Visible (UV/Vis) spectroscopy and nitrogen adsorption method. In this work, we presented a simple and effective method for controlling the composition and morphology of CoMoO4. A single-phase a and 13 crystalline form of CoMoO4 compound was confirmed by X-ray diffraction (XRD). The photocatalytic activity of CoMoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. In addition, the obtained specific CoMoO4 nanopowder demonstrated acceptable specific surface area, which can be of particular importance for the photocatalytic processes.",
journal = "Materials Research Bulletin",
title = "Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method",
volume = "98",
pages = "111-120",
doi = "10.1016/j.materresbull.2017.10.015"
}
Rosić, M., Zarubica, A. R., Šaponjić, A., Babić, B. M., Zagorac, J. B., Jordanov, D.,& Matović, B. (2018). Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method.
Materials Research Bulletin, 98, 111-120.
https://doi.org/10.1016/j.materresbull.2017.10.015
Rosić M, Zarubica AR, Šaponjić A, Babić BM, Zagorac JB, Jordanov D, Matović B. Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method. Materials Research Bulletin. 2018;98:111-120
Rosić Milena, Zarubica Aleksandra R., Šaponjić Aleksandra, Babić Biljana M., Zagorac Jelena B., Jordanov Dragana, Matović Branko, "Structural and photocatalytic examination of CoMoO4 nanopowders synthesized by GNP method" Materials Research Bulletin, 98 (2018):111-120,
https://doi.org/10.1016/j.materresbull.2017.10.015 .
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Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains

Kokunešoski, Maja; Baščarević, Zvezdana D.; Rakočević, Zlatko Lj.; Šaponjić, Aleksandra; Šaponjić, Đorđe; Jordanov, Dragana; Babić, Biljana M.

(2018)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana D.
AU  - Rakočević, Zlatko Lj.
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Jordanov, Dragana
AU  - Babić, Biljana M.
PY  - 2018
UR  - https://www.doiserbia.nb.rs/Article.aspx?ID=0350-820X1801111K
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7650
AB  - Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.
T2  - Science of Sintering
T1  - Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains
VL  - 50
IS  - 1
SP  - 111
EP  - 121
DO  - 10.2298/SOS1801111K
ER  - 
@article{
author = "Kokunešoski, Maja and Baščarević, Zvezdana D. and Rakočević, Zlatko Lj. and Šaponjić, Aleksandra and Šaponjić, Đorđe and Jordanov, Dragana and Babić, Biljana M.",
year = "2018",
url = "https://www.doiserbia.nb.rs/Article.aspx?ID=0350-820X1801111K, http://vinar.vin.bg.ac.rs/handle/123456789/7650",
abstract = "Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.",
journal = "Science of Sintering",
title = "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains",
volume = "50",
number = "1",
pages = "111-121",
doi = "10.2298/SOS1801111K"
}
Kokunešoski, M., Baščarević, Z. D., Rakočević, Z. Lj., Šaponjić, A., Šaponjić, Đ., Jordanov, D.,& Babić, B. M. (2018). Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains.
Science of Sintering, 50(1), 111-121.
https://doi.org/10.2298/SOS1801111K
Kokunešoski M, Baščarević ZD, Rakočević ZL, Šaponjić A, Šaponjić Đ, Jordanov D, Babić BM. Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains. Science of Sintering. 2018;50(1):111-121
Kokunešoski Maja, Baščarević Zvezdana D., Rakočević Zlatko Lj., Šaponjić Aleksandra, Šaponjić Đorđe, Jordanov Dragana, Babić Biljana M., "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains" Science of Sintering, 50, no. 1 (2018):111-121,
https://doi.org/10.2298/SOS1801111K .
1

Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level

Zagorac, Dejan; Doll, Klaus; Zagorac, Jelena B.; Jordanov, Dragana; Matović, Branko

(2017)

TY  - JOUR
AU  - Zagorac, Dejan
AU  - Doll, Klaus
AU  - Zagorac, Jelena B.
AU  - Jordanov, Dragana
AU  - Matović, Branko
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1718
AB  - Barium sulfide (BaS) is an important precursor to other barium compounds with applications from ceramics and flame retardants to luminous paints and additives, and recent research shows potential technological applications in electrical and optical devices. Under normal conditions, BaS crystallizes in the NaCl type of structure, and with the increase in pressure BaS undergoes a structural phase transition to a CsCl type modification. This study presents modeling of barium sulfide under pressure with special focus on structural aspects and electronic properties. We predict metastable BaS polymorphs which have not yet been observed in the experiment or in previous calculations, and we investigated their vibrational and thermodynamical properties. Furthermore, we investigate the electronic properties of experimentally known structures as well as novel predicted modifications of BaS on ab initio level using Hartree-Fock, GGA-PBE, and the hybrid B3LYP functional. In this way, we address new possibilities of synthesizing BaS and possible band gap tuning which can have great applications in optoelectrical technologies.
T2  - Inorganic Chemistry
T1  - Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level
VL  - 56
IS  - 17
SP  - 10644
EP  - 10654
DO  - 10.1021/acs.inorgchem.7b01617
ER  - 
@article{
author = "Zagorac, Dejan and Doll, Klaus and Zagorac, Jelena B. and Jordanov, Dragana and Matović, Branko",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1718",
abstract = "Barium sulfide (BaS) is an important precursor to other barium compounds with applications from ceramics and flame retardants to luminous paints and additives, and recent research shows potential technological applications in electrical and optical devices. Under normal conditions, BaS crystallizes in the NaCl type of structure, and with the increase in pressure BaS undergoes a structural phase transition to a CsCl type modification. This study presents modeling of barium sulfide under pressure with special focus on structural aspects and electronic properties. We predict metastable BaS polymorphs which have not yet been observed in the experiment or in previous calculations, and we investigated their vibrational and thermodynamical properties. Furthermore, we investigate the electronic properties of experimentally known structures as well as novel predicted modifications of BaS on ab initio level using Hartree-Fock, GGA-PBE, and the hybrid B3LYP functional. In this way, we address new possibilities of synthesizing BaS and possible band gap tuning which can have great applications in optoelectrical technologies.",
journal = "Inorganic Chemistry",
title = "Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level",
volume = "56",
number = "17",
pages = "10644-10654",
doi = "10.1021/acs.inorgchem.7b01617"
}
Zagorac, D., Doll, K., Zagorac, J. B., Jordanov, D.,& Matović, B. (2017). Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level.
Inorganic Chemistry, 56(17), 10644-10654.
https://doi.org/10.1021/acs.inorgchem.7b01617
Zagorac D, Doll K, Zagorac JB, Jordanov D, Matović B. Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level. Inorganic Chemistry. 2017;56(17):10644-10654
Zagorac Dejan, Doll Klaus, Zagorac Jelena B., Jordanov Dragana, Matović Branko, "Barium Sulfide under Pressure: Discovery of Metastable Polymorphs and Investigation of Electronic Properties on ab Initio Level" Inorganic Chemistry, 56, no. 17 (2017):10644-10654,
https://doi.org/10.1021/acs.inorgchem.7b01617 .
1
10
11
12

Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures

Luković, Jelena M.; Zagorac, Dejan; Schoen, J. Christian; Zagorac, Jelena B.; Jordanov, Dragana; Volkov-Husović, Tatjana; Matović, Branko

(2017)

TY  - JOUR
AU  - Luković, Jelena M.
AU  - Zagorac, Dejan
AU  - Schoen, J. Christian
AU  - Zagorac, Jelena B.
AU  - Jordanov, Dragana
AU  - Volkov-Husović, Tatjana
AU  - Matović, Branko
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1868
AB  - Transition metal silicides have attracted great attention due to their potential applications in microelectronics, ceramics, and the aerospace industry. In this study, experimental and theoretical investigations of tungsten based silicides were performed. Tungsten disilicide (WSi2) was synthesized by simple thermal treatment at 1350 degrees C for 4 h in an argon atmosphere. These optimal synthesis conditions were obtained by variation of temperatures and times of heating, and the structure of the final synthesized compound was determined by XRPD analysis. In addition, new modifications for WSi2 were proposed and investigated using first-principles calculations within density-functional theory (DFT). Both LDA and PBE calculations show excellent agreement with experimental observations and previous calculations for the existing modifications, where available.
T2  - Zeitschrift fur Anorganische und Allgemeine Chemie
T1  - Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures
VL  - 643
IS  - 23
SP  - 2088
EP  - 2094
DO  - 10.1002/zaac.201700329
ER  - 
@article{
author = "Luković, Jelena M. and Zagorac, Dejan and Schoen, J. Christian and Zagorac, Jelena B. and Jordanov, Dragana and Volkov-Husović, Tatjana and Matović, Branko",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1868",
abstract = "Transition metal silicides have attracted great attention due to their potential applications in microelectronics, ceramics, and the aerospace industry. In this study, experimental and theoretical investigations of tungsten based silicides were performed. Tungsten disilicide (WSi2) was synthesized by simple thermal treatment at 1350 degrees C for 4 h in an argon atmosphere. These optimal synthesis conditions were obtained by variation of temperatures and times of heating, and the structure of the final synthesized compound was determined by XRPD analysis. In addition, new modifications for WSi2 were proposed and investigated using first-principles calculations within density-functional theory (DFT). Both LDA and PBE calculations show excellent agreement with experimental observations and previous calculations for the existing modifications, where available.",
journal = "Zeitschrift fur Anorganische und Allgemeine Chemie",
title = "Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures",
volume = "643",
number = "23",
pages = "2088-2094",
doi = "10.1002/zaac.201700329"
}
Luković, J. M., Zagorac, D., Schoen, J. C., Zagorac, J. B., Jordanov, D., Volkov-Husović, T.,& Matović, B. (2017). Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures.
Zeitschrift fur Anorganische und Allgemeine Chemie, 643(23), 2088-2094.
https://doi.org/10.1002/zaac.201700329
Luković JM, Zagorac D, Schoen JC, Zagorac JB, Jordanov D, Volkov-Husović T, Matović B. Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures. Zeitschrift fur Anorganische und Allgemeine Chemie. 2017;643(23):2088-2094
Luković Jelena M., Zagorac Dejan, Schoen J. Christian, Zagorac Jelena B., Jordanov Dragana, Volkov-Husović Tatjana, Matović Branko, "Tungsten Disilicide (WSi2): Synthesis, Characterization, and Prediction of New Crystal Structures" Zeitschrift fur Anorganische und Allgemeine Chemie, 643, no. 23 (2017):2088-2094,
https://doi.org/10.1002/zaac.201700329 .
10
10
9

Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015)

Rosić, Milena; Kljajević, Ljiljana M.; Jordanov, Dragana; Stoiljković, Milovan; Kusigerski, Vladan; Spasojević, Vojislav; Matović, Branko

(2016)

TY  - BOOK
AU  - Rosić, Milena
AU  - Kljajević, Ljiljana M.
AU  - Jordanov, Dragana
AU  - Stoiljković, Milovan
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Matović, Branko
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/980
T2  - Ceramics International
T1  - Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015)
VL  - 42
IS  - 6
SP  - 7895
EP  - 7895
DO  - 10.1016/j.ceramint.2016.01.134
ER  - 
@book{
author = "Rosić, Milena and Kljajević, Ljiljana M. and Jordanov, Dragana and Stoiljković, Milovan and Kusigerski, Vladan and Spasojević, Vojislav and Matović, Branko",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/980",
journal = "Ceramics International",
title = "Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015)",
volume = "42",
number = "6",
pages = "7895-7895",
doi = "10.1016/j.ceramint.2016.01.134"
}
Rosić, M., Kljajević, L. M., Jordanov, D., Stoiljković, M., Kusigerski, V., Spasojević, V.,& Matović, B. (2016). Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015).
Ceramics International, 42(6), 7895-7895.
https://doi.org/10.1016/j.ceramint.2016.01.134
Rosić M, Kljajević LM, Jordanov D, Stoiljković M, Kusigerski V, Spasojević V, Matović B. Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015). Ceramics International. 2016;42(6):7895-7895
Rosić Milena, Kljajević Ljiljana M., Jordanov Dragana, Stoiljković Milovan, Kusigerski Vladan, Spasojević Vojislav, Matović Branko, "Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2) (vol 41, pg 14964, 2015)" Ceramics International, 42, no. 6 (2016):7895-7895,
https://doi.org/10.1016/j.ceramint.2016.01.134 .

The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152

Jordanov, Dragana; Nađđerđ, Laslo; Puzovic, Jovan; Rosić, Milena; Kokunešoski, Maja

(2016)

TY  - JOUR
AU  - Jordanov, Dragana
AU  - Nađđerđ, Laslo
AU  - Puzovic, Jovan
AU  - Rosić, Milena
AU  - Kokunešoski, Maja
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1277
AB  - In this paper we present the results of applying the new approach for calculating coincidence summing effects. The application of analytical approaches to coincidence summing effects makes it possible to predict all summation peaks that occur in the spectrum. Accordingly, based on the value of the peak area in the spectrum and knowledge of probability transitions between excited states of a nucleus, it is possible to determine the efficiency of detection and activity of radioactive sources. This method is successfully applied to the decay of the radionuclide europium Eu-152. It provides a detailed description of the method of forming the matrix corresponding to the final result - determined activities and the efficiency of detection. The importance of the new method is that it allows us to determine the efficiency of detection and activity of radioactive sources directly without calibration of the detector, which is very important in metrology of radionuclides. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152
VL  - 836
SP  - 22
EP  - 29
DO  - 10.1016/j.nima.2016.08.008
ER  - 
@article{
author = "Jordanov, Dragana and Nađđerđ, Laslo and Puzovic, Jovan and Rosić, Milena and Kokunešoski, Maja",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1277",
abstract = "In this paper we present the results of applying the new approach for calculating coincidence summing effects. The application of analytical approaches to coincidence summing effects makes it possible to predict all summation peaks that occur in the spectrum. Accordingly, based on the value of the peak area in the spectrum and knowledge of probability transitions between excited states of a nucleus, it is possible to determine the efficiency of detection and activity of radioactive sources. This method is successfully applied to the decay of the radionuclide europium Eu-152. It provides a detailed description of the method of forming the matrix corresponding to the final result - determined activities and the efficiency of detection. The importance of the new method is that it allows us to determine the efficiency of detection and activity of radioactive sources directly without calibration of the detector, which is very important in metrology of radionuclides. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152",
volume = "836",
pages = "22-29",
doi = "10.1016/j.nima.2016.08.008"
}
Jordanov, D., Nađđerđ, L., Puzovic, J., Rosić, M.,& Kokunešoski, M. (2016). The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152.
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 836, 22-29.
https://doi.org/10.1016/j.nima.2016.08.008
Jordanov D, Nađđerđ L, Puzovic J, Rosić M, Kokunešoski M. The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2016;836:22-29
Jordanov Dragana, Nađđerđ Laslo, Puzovic Jovan, Rosić Milena, Kokunešoski Maja, "The application of the new matrix method for calculating coincidence summing effects in the case of radionuclide with the more complex decay scheme-Eu-152" Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 836 (2016):22-29,
https://doi.org/10.1016/j.nima.2016.08.008 .
1
3
4
3

Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)

Rosić, Milena; Kljaljevic, Ljiljana; Jordanov, Dragana; Stoiljković, Milovan; Kusigerski, Vladan; Spasojević, Vojislav; Matović, Branko

(2015)

TY  - JOUR
AU  - Rosić, Milena
AU  - Kljaljevic, Ljiljana
AU  - Jordanov, Dragana
AU  - Stoiljković, Milovan
AU  - Kusigerski, Vladan
AU  - Spasojević, Vojislav
AU  - Matović, Branko
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/772
AB  - Nanocrystalline manganites Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) were synthesized by a modified glycine-nitrate procedure and subjected to a systematic investigation regarding the effects of calcination and sintering on their structural, microstructural and magnetic properties. Thermal treatments of the green bodies were carried out by the conventional sintering (CS) method and the effects were monitored by different experimental techniques (XRD, ICP, FTIR, SEM, and EDS). The obtained results showed that induced structural/microstructural changes were not simple functions of the dopant concentration x and that they were influenced by different material-specific processes. Magnetism of the final bulk powders have been investigated by SQUID-magnetometry and correlated with samples composition and structural/microstructural properties. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)
VL  - 41
IS  - 10
SP  - 14964
EP  - 14972
DO  - 10.1016/j.ceramint.2015.08.041
ER  - 
@article{
author = "Rosić, Milena and Kljaljevic, Ljiljana and Jordanov, Dragana and Stoiljković, Milovan and Kusigerski, Vladan and Spasojević, Vojislav and Matović, Branko",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/772",
abstract = "Nanocrystalline manganites Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, and 0.2) were synthesized by a modified glycine-nitrate procedure and subjected to a systematic investigation regarding the effects of calcination and sintering on their structural, microstructural and magnetic properties. Thermal treatments of the green bodies were carried out by the conventional sintering (CS) method and the effects were monitored by different experimental techniques (XRD, ICP, FTIR, SEM, and EDS). The obtained results showed that induced structural/microstructural changes were not simple functions of the dopant concentration x and that they were influenced by different material-specific processes. Magnetism of the final bulk powders have been investigated by SQUID-magnetometry and correlated with samples composition and structural/microstructural properties. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)",
volume = "41",
number = "10",
pages = "14964-14972",
doi = "10.1016/j.ceramint.2015.08.041"
}
Rosić, M., Kljaljevic, L., Jordanov, D., Stoiljković, M., Kusigerski, V., Spasojević, V.,& Matović, B. (2015). Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2).
Ceramics International, 41(10), 14964-14972.
https://doi.org/10.1016/j.ceramint.2015.08.041
Rosić M, Kljaljevic L, Jordanov D, Stoiljković M, Kusigerski V, Spasojević V, Matović B. Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2). Ceramics International. 2015;41(10):14964-14972
Rosić Milena, Kljaljevic Ljiljana, Jordanov Dragana, Stoiljković Milovan, Kusigerski Vladan, Spasojević Vojislav, Matović Branko, "Effects of sintering on the structural, micro structural and magnetic properties of nanoparticle manganite Ca1-xGdxMnO3 (x=0.05, 0.1, 0.15, 0.2)" Ceramics International, 41, no. 10 (2015):14964-14972,
https://doi.org/10.1016/j.ceramint.2015.08.041 .
8
9
8

A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions

Nađđerđ, Laslo; Davidović, Miloš D.; Davidovic, Dragomir M.; Milošević, Miodrag J.; Jordanov, Dragana; Stanković, Srboljub J.; Prvanovic, Slobodan L.

(2013)

TY  - JOUR
AU  - Nađđerđ, Laslo
AU  - Davidović, Miloš D.
AU  - Davidovic, Dragomir M.
AU  - Milošević, Miodrag J.
AU  - Jordanov, Dragana
AU  - Stanković, Srboljub J.
AU  - Prvanovic, Slobodan L.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5180
AB  - In the treatment of Ba-133 decay by the method of coincidence summing, the transitions to the first two excited states of Cs-133 were ignored in former works. By applying the most accurate values for these transitions available in literature, we include them into the count rate equations and obtain solutions for the corresponding system. As a result of this more accurate forming of count rate equations, some terms, which contain previously ignored transition probabilities, turn out to be more significant than the conventionally included terms. We show that their inclusion in the system of count rate equations leads to fine improvements in the determinations of detection efficiencies and the activity of the Ba-133 source. (c) 2012 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions
VL  - 698
SP  - 60
EP  - 65
DO  - 10.1016/j.nima.2012.09.044
ER  - 
@article{
author = "Nađđerđ, Laslo and Davidović, Miloš D. and Davidovic, Dragomir M. and Milošević, Miodrag J. and Jordanov, Dragana and Stanković, Srboljub J. and Prvanovic, Slobodan L.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5180",
abstract = "In the treatment of Ba-133 decay by the method of coincidence summing, the transitions to the first two excited states of Cs-133 were ignored in former works. By applying the most accurate values for these transitions available in literature, we include them into the count rate equations and obtain solutions for the corresponding system. As a result of this more accurate forming of count rate equations, some terms, which contain previously ignored transition probabilities, turn out to be more significant than the conventionally included terms. We show that their inclusion in the system of count rate equations leads to fine improvements in the determinations of detection efficiencies and the activity of the Ba-133 source. (c) 2012 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions",
volume = "698",
pages = "60-65",
doi = "10.1016/j.nima.2012.09.044"
}
Nađđerđ, L., Davidović, M. D., Davidovic, D. M., Milošević, M. J., Jordanov, D., Stanković, S. J.,& Prvanovic, S. L. (2013). A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions.
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 698, 60-65.
https://doi.org/10.1016/j.nima.2012.09.044
Nađđerđ L, Davidović MD, Davidovic DM, Milošević MJ, Jordanov D, Stanković SJ, Prvanovic SL. A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2013;698:60-65
Nađđerđ Laslo, Davidović Miloš D., Davidovic Dragomir M., Milošević Miodrag J., Jordanov Dragana, Stanković Srboljub J., Prvanovic Slobodan L., "A possible improvement of the determination of Ba-133 activity and detection efficiency by the sum-peak method, by inclusion of the previously neglected transitions" Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 698 (2013):60-65,
https://doi.org/10.1016/j.nima.2012.09.044 .
3
4
2

A new matrix method for calculating coincidence summing effects for gamma spectroscopy

Nađđerđ, Laslo; Jordanov, Dragana; Davidović, Miloš D.

(2012)

TY  - JOUR
AU  - Nađđerđ, Laslo
AU  - Jordanov, Dragana
AU  - Davidović, Miloš D.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4625
AB  - A new method for deriving counting rate equations describing coincidence summing of gamma and X-rays for germanium spectrometers is developed. It is applied to the decay of (139)Ce and (57)Co. It is shown that the results obtained using the proposed method are in complete agreement with the results obtained using other methods, however these results are achieved in a much clearer and simpler way. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - A new matrix method for calculating coincidence summing effects for gamma spectroscopy
VL  - 662
IS  - 1
SP  - 21
EP  - 25
DO  - 10.1016/j.nima.2011.10.002
ER  - 
@article{
author = "Nađđerđ, Laslo and Jordanov, Dragana and Davidović, Miloš D.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4625",
abstract = "A new method for deriving counting rate equations describing coincidence summing of gamma and X-rays for germanium spectrometers is developed. It is applied to the decay of (139)Ce and (57)Co. It is shown that the results obtained using the proposed method are in complete agreement with the results obtained using other methods, however these results are achieved in a much clearer and simpler way. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "A new matrix method for calculating coincidence summing effects for gamma spectroscopy",
volume = "662",
number = "1",
pages = "21-25",
doi = "10.1016/j.nima.2011.10.002"
}
Nađđerđ, L., Jordanov, D.,& Davidović, M. D. (2012). A new matrix method for calculating coincidence summing effects for gamma spectroscopy.
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 662(1), 21-25.
https://doi.org/10.1016/j.nima.2011.10.002
Nađđerđ L, Jordanov D, Davidović MD. A new matrix method for calculating coincidence summing effects for gamma spectroscopy. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2012;662(1):21-25
Nađđerđ Laslo, Jordanov Dragana, Davidović Miloš D., "A new matrix method for calculating coincidence summing effects for gamma spectroscopy" Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 662, no. 1 (2012):21-25,
https://doi.org/10.1016/j.nima.2011.10.002 .
6
7
7

New Method for Determination of Temperature in Spallation Reactions

Jordanov, Dragana; Grabez, Bojana S.; Subotić, Krunoslav M.; Nađđerđ, Laslo

(2011)

TY  - JOUR
AU  - Jordanov, Dragana
AU  - Grabez, Bojana S.
AU  - Subotić, Krunoslav M.
AU  - Nađđerđ, Laslo
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4506
AB  - We propose a new method for determination of temperature in spallation events. It is shown that temperature can be determined by applying the friction model of energy dissipation in participant-spectator model of a spallation process. First order estimate of temperature dependence of the participant zone on reaction Q-value is obtained from the Fermi gas model considerations. The heat diffusion process is also discussed.
T2  - Nuclear technology and radiation protection
T1  - New Method for Determination of Temperature in Spallation Reactions
VL  - 26
IS  - 2
SP  - 153
EP  - 157
DO  - 10.2298/NTRP1102153J
ER  - 
@article{
author = "Jordanov, Dragana and Grabez, Bojana S. and Subotić, Krunoslav M. and Nađđerđ, Laslo",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4506",
abstract = "We propose a new method for determination of temperature in spallation events. It is shown that temperature can be determined by applying the friction model of energy dissipation in participant-spectator model of a spallation process. First order estimate of temperature dependence of the participant zone on reaction Q-value is obtained from the Fermi gas model considerations. The heat diffusion process is also discussed.",
journal = "Nuclear technology and radiation protection",
title = "New Method for Determination of Temperature in Spallation Reactions",
volume = "26",
number = "2",
pages = "153-157",
doi = "10.2298/NTRP1102153J"
}
Jordanov, D., Grabez, B. S., Subotić, K. M.,& Nađđerđ, L. (2011). New Method for Determination of Temperature in Spallation Reactions.
Nuclear technology and radiation protection, 26(2), 153-157.
https://doi.org/10.2298/NTRP1102153J
Jordanov D, Grabez BS, Subotić KM, Nađđerđ L. New Method for Determination of Temperature in Spallation Reactions. Nuclear technology and radiation protection. 2011;26(2):153-157
Jordanov Dragana, Grabez Bojana S., Subotić Krunoslav M., Nađđerđ Laslo, "New Method for Determination of Temperature in Spallation Reactions" Nuclear technology and radiation protection, 26, no. 2 (2011):153-157,
https://doi.org/10.2298/NTRP1102153J .

Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions

Subotić, Krunoslav M.; Jordanov, Dragana; Đurašević, Mirjana M.; Dragosavac, D.; Grabez, B.

(2007)

TY  - CONF
AU  - Subotić, Krunoslav M.
AU  - Jordanov, Dragana
AU  - Đurašević, Mirjana M.
AU  - Dragosavac, D.
AU  - Grabez, B.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6579
AB  - In our study of the reaction Ne-20+Al-27 at energy of 84 A MeV, the track detectors were used to select the target like fragments arising from processes in which the interacting system becomes disintegrated into a large number of constituent nucleons and one massive fragment. Heavy ion reaction studies at bombarding energies of several tens of MeV/nucleon have provided the evidence that most of reaction cross section, in this energy range, is associated with the production of primary projectile like and target like fragment in the first step of the nuclear reaction. The subsequent evolution of the studied reaction systems, has been usually described either using low energy models based on mean field effects (WE), or high energy models where reaction proceeds by independent collisions (INC) of individual nucleons in the overlap region between target and projectile. The analysis of our results in terms of different MFE and INC models, prescribing consistent timings, has shown that the reaction mechanism may be defined of interplay of the mean field and individual nucleon collisions effects.
C3  - AIP Conference Proceedings
T1  - Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions
VL  - 899
SP  - 541
EP  - 541
ER  - 
@conference{
author = "Subotić, Krunoslav M. and Jordanov, Dragana and Đurašević, Mirjana M. and Dragosavac, D. and Grabez, B.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6579",
abstract = "In our study of the reaction Ne-20+Al-27 at energy of 84 A MeV, the track detectors were used to select the target like fragments arising from processes in which the interacting system becomes disintegrated into a large number of constituent nucleons and one massive fragment. Heavy ion reaction studies at bombarding energies of several tens of MeV/nucleon have provided the evidence that most of reaction cross section, in this energy range, is associated with the production of primary projectile like and target like fragment in the first step of the nuclear reaction. The subsequent evolution of the studied reaction systems, has been usually described either using low energy models based on mean field effects (WE), or high energy models where reaction proceeds by independent collisions (INC) of individual nucleons in the overlap region between target and projectile. The analysis of our results in terms of different MFE and INC models, prescribing consistent timings, has shown that the reaction mechanism may be defined of interplay of the mean field and individual nucleon collisions effects.",
journal = "AIP Conference Proceedings",
title = "Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions",
volume = "899",
pages = "541-541"
}
Subotić, K. M., Jordanov, D., Đurašević, M. M., Dragosavac, D.,& Grabez, B. (2007). Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions.
AIP Conference Proceedings, 899, 541-541.
Subotić KM, Jordanov D, Đurašević MM, Dragosavac D, Grabez B. Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions. AIP Conference Proceedings. 2007;899:541-541
Subotić Krunoslav M., Jordanov Dragana, Đurašević Mirjana M., Dragosavac D., Grabez B., "Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions" AIP Conference Proceedings, 899 (2007):541-541

Testing the exponential decay law of gold Au-198

Novković, Dušan N.; Nađđerđ, Laslo; Kandić, Aleksandar; Vukanac, Ivana; Đurašević, Mirjana M.; Jordanov, Dragana

(2006)

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Jordanov, Dragana
PY  - 2006
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3097
AB  - A long time scale experimental testing of the exponential decay law of gold, Au-198, is presented. The experiment has been processed by using a contemporary digital spectrum analyzer. Within the limits of the experimental errors no deviation from the exponential decay law of Au-198 has been observed. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Testing the exponential decay law of gold Au-198
VL  - 566
IS  - 2
SP  - 477
EP  - 480
DO  - 10.1016/j.nima.2006.07.044
ER  - 
@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo and Kandić, Aleksandar and Vukanac, Ivana and Đurašević, Mirjana M. and Jordanov, Dragana",
year = "2006",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3097",
abstract = "A long time scale experimental testing of the exponential decay law of gold, Au-198, is presented. The experiment has been processed by using a contemporary digital spectrum analyzer. Within the limits of the experimental errors no deviation from the exponential decay law of Au-198 has been observed. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Testing the exponential decay law of gold Au-198",
volume = "566",
number = "2",
pages = "477-480",
doi = "10.1016/j.nima.2006.07.044"
}
Novković, D. N., Nađđerđ, L., Kandić, A., Vukanac, I., Đurašević, M. M.,& Jordanov, D. (2006). Testing the exponential decay law of gold Au-198.
Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 566(2), 477-480.
https://doi.org/10.1016/j.nima.2006.07.044
Novković DN, Nađđerđ L, Kandić A, Vukanac I, Đurašević MM, Jordanov D. Testing the exponential decay law of gold Au-198. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2006;566(2):477-480
Novković Dušan N., Nađđerđ Laslo, Kandić Aleksandar, Vukanac Ivana, Đurašević Mirjana M., Jordanov Dragana, "Testing the exponential decay law of gold Au-198" Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 566, no. 2 (2006):477-480,
https://doi.org/10.1016/j.nima.2006.07.044 .
13
14
12

NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions

Subotić, Krunoslav M.; Jordanov, Dragana; Đurašević, Mirjana M.; Grabez, Bojana; Nađđerđ, Laslo

(2006)

TY  - CONF
AU  - Subotić, Krunoslav M.
AU  - Jordanov, Dragana
AU  - Đurašević, Mirjana M.
AU  - Grabez, Bojana
AU  - Nađđerđ, Laslo
PY  - 2006
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6411
C3  - Abstracts of Papers of the American Chemical Society
T1  - NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions
VL  - 232
ER  - 
@conference{
author = "Subotić, Krunoslav M. and Jordanov, Dragana and Đurašević, Mirjana M. and Grabez, Bojana and Nađđerđ, Laslo",
year = "2006",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6411",
journal = "Abstracts of Papers of the American Chemical Society",
title = "NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions",
volume = "232"
}
Subotić, K. M., Jordanov, D., Đurašević, M. M., Grabez, B.,& Nađđerđ, L. (2006). NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions.
Abstracts of Papers of the American Chemical Society, 232.
Subotić KM, Jordanov D, Đurašević MM, Grabez B, Nađđerđ L. NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions. Abstracts of Papers of the American Chemical Society. 2006;232
Subotić Krunoslav M., Jordanov Dragana, Đurašević Mirjana M., Grabez Bojana, Nađđerđ Laslo, "NUCL 26-Interplay of mean field and individual nucleon collisions effects at intermediate energy heavy ion reactions" Abstracts of Papers of the American Chemical Society, 232 (2006)