All Publications

Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method

TY  - JOUR
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Janković-Častvan, Ivona
AU  - Ognjanović, Miloš
AU  - Branković, Goran O.
AU  - Nikolić, Maria Vesna
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9706
AB  - The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.
T2  - Royal Society Open Science
T1  - Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method
VL  - 7
IS  - 9
SP  - 200708
DO  - 10.1098/rsos.200708
ER  - 
@article{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Janković-Častvan, Ivona and Ognjanović, Miloš and Tadić, Nenad B. and Stojadinović, Stevan and Branković, Goran O. and Nikolić, Maria Vesna",
abstract = "The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.",
journal = "Royal Society Open Science",
title = "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method",
volume = "7",
number = "9",
pages = "200708",
doi = "10.1098/rsos.200708"
}
Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J., Janković-Častvan, I., Ognjanović, M., Tadić, N. B., Stojadinović, S., Branković, G. O.,& Nikolić, M. V..Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science, 7(9), 200708.
https://doi.org/10.1098/rsos.200708
Vasiljević ZŽ, Dojčinović M, Vujančević J, Janković-Častvan I, Ognjanović M, Tadić NB, Stojadinović S, Branković GO, Nikolić MV. Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science.7(9):200708.
doi:10.1098/rsos.200708 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Janković-Častvan, Ivona, Ognjanović, Miloš, Tadić, Nenad B., Stojadinović, Stevan, Branković, Goran O., Nikolić, Maria Vesna, "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method" in Royal Society Open Science, 7, no. 9:200708,
https://doi.org/10.1098/rsos.200708 . .
 10 5 10

Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound

(2021)

TY  - JOUR
AU  - Petrović, Milica
AU  - Rančev, Saša
AU  - Prekajski Đorđević, Marija
AU  - Najdanović, Slobodan M.
AU  - Velinov, Nena D.
AU  - Bojić, Aleksandar Lj
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9709
AB  - MoO2 and MoO3 were applied as catalysts for plasma degradation of organic compound. They were prepared by electrodeposition (MoO2) and electrodeposition followed by thermal treatment (MoO3), and then characterized by the cyclic voltammetry, SEM, EDX, XRD, and FTIR. The RB 19 was degraded by self-made non-thermal atmospheric pressure pulsating plasma corona reactor. Decolourization mechanism, parameters, kinetics, and influence of the catalysts were examined. Mo-oxides enhanced degradation reactions rate constants by 45% – 50%, increased decolourization rate at all the tested pHs, discharged current densities, and decreased energy consumption. Degradation followed the pseudo-first kinetics order and proceeded via plasma-generated ⋅OH radical, which attacked dye molecule; MoO2 and MoO3, excited by plasma-generated UV radiation and high-energy chemical species bombardment, enhanced decomposition of plasma-generated H2O2 into ⋅OH radicals, thus enhancing production of degradation agent. Higher percentage of mineralization was attained in the presence of catalysts, which maintained their degradation activity after 5 uses.
T2  - Chemical Engineering Science
T2  - Chemical Engineering ScienceChemical Engineering Science
T1  - Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound
VL  - 230
SP  - 116209
DO  - 10.1016/j.ces.2020.116209
ER  - 
@article{
author = "Petrović, Milica and Rančev, Saša and Prekajski Đorđević, Marija and Najdanović, Slobodan M. and Velinov, Nena D. and Radović Vučić, Miljana and Bojić, Aleksandar Lj",
year = "2021",
abstract = "MoO2 and MoO3 were applied as catalysts for plasma degradation of organic compound. They were prepared by electrodeposition (MoO2) and electrodeposition followed by thermal treatment (MoO3), and then characterized by the cyclic voltammetry, SEM, EDX, XRD, and FTIR. The RB 19 was degraded by self-made non-thermal atmospheric pressure pulsating plasma corona reactor. Decolourization mechanism, parameters, kinetics, and influence of the catalysts were examined. Mo-oxides enhanced degradation reactions rate constants by 45% – 50%, increased decolourization rate at all the tested pHs, discharged current densities, and decreased energy consumption. Degradation followed the pseudo-first kinetics order and proceeded via plasma-generated ⋅OH radical, which attacked dye molecule; MoO2 and MoO3, excited by plasma-generated UV radiation and high-energy chemical species bombardment, enhanced decomposition of plasma-generated H2O2 into ⋅OH radicals, thus enhancing production of degradation agent. Higher percentage of mineralization was attained in the presence of catalysts, which maintained their degradation activity after 5 uses.",
journal = "Chemical Engineering Science, Chemical Engineering ScienceChemical Engineering Science",
title = "Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound",
volume = "230",
pages = "116209",
doi = "10.1016/j.ces.2020.116209"
}
Petrović, M., Rančev, S., Prekajski Đorđević, M., Najdanović, S. M., Velinov, N. D., Radović Vučić, M.,& Bojić, A. L.. (2021). Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound. in Chemical Engineering Science, 230, 116209.
https://doi.org/10.1016/j.ces.2020.116209
Petrović M, Rančev S, Prekajski Đorđević M, Najdanović SM, Velinov ND, Radović Vučić M, Bojić AL. Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound. in Chemical Engineering Science. 2021;230:116209.
doi:10.1016/j.ces.2020.116209 .
Petrović, Milica, Rančev, Saša, Prekajski Đorđević, Marija, Najdanović, Slobodan M., Velinov, Nena D., Radović Vučić, Miljana, Bojić, Aleksandar Lj, "Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound" in Chemical Engineering Science, 230 (2021):116209,
https://doi.org/10.1016/j.ces.2020.116209 . .
 1 1

Vendor‐independent skin dose mapping application for interventional radiology and cardiology

(2021)

TY  - JOUR
AU  - Krajinović, Marko
AU  - Kržanović, Nikola
AU  - Ciraj-Bjelac, Olivera
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9519
AB  - Purpose: The purpose of this paper is to present and validate an originally developed application SkinCare used for skin dose mapping in interventional procedures, which are associated with relatively high radiation doses to the patient’s skin and possible skin reactions. Methods: SkinCare is an application tool for generating skin dose maps following interventional radiology and cardiology procedures using the realistic 3D patient models. Skin dose is calculated using data from Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Reports (RDSRs). SkinCare validation was performed by using the data from the Siemens Artis Zee Biplane fluoroscopy system and conducting “Acceptance and quality control protocols for skin dose calculating software solutions in interventional cardiology” developed and tested in the frame of the VERIDIC project. XR-RV3 Gafchromic films were used as dosimeters to compare peak skin doses (PSDs) and dose maps obtained through measurements and calculations. DICOM RDSRs from four fluoroscopy systems of different vendors (Canon, GE, Philips, and Siemens) were used for the development of the SkinCare and for the comparison of skin dose maps generated using SkinCare to skin dose maps generated by different commercial software tools (Dose Tracking System (DTS) from Canon, RadimetricsTM from Bayer and RDM from MEDSQUARE). The same RDSRs generated during a cardiology clinical procedure (percutaneous coronary intervention—PCI) were used for comparison. Results: Validation performed using VERIDIC's protocols for skin dose calculation software showed that PSD calculated by SkinCare is within 17% and 16% accuracy compared to measurements using XR-RV3 Gafchromic films for fundamental irradiation setups and simplified clinical procedures, respectively. Good visual agreement between dose maps generated by SkinCare and DTS, RadimetricsTM and RDM was obtained. Conclusions: SkinCare is proved to be very convenient solution that can be used for monitoring delivered dose following interventional procedures. © 2021 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.
T2  - Journal of Applied Clinical Medical Physics
T1  - Vendor‐independent skin dose mapping application for interventional radiology and cardiology
VL  - 22
IS  - 2
SP  - 145
EP  - 157
DO  - 10.1002/acm2.13167
ER  - 
@article{
author = "Krajinović, Marko and Kržanović, Nikola and Ciraj-Bjelac, Olivera",
year = "2021",
abstract = "Purpose: The purpose of this paper is to present and validate an originally developed application SkinCare used for skin dose mapping in interventional procedures, which are associated with relatively high radiation doses to the patient’s skin and possible skin reactions. Methods: SkinCare is an application tool for generating skin dose maps following interventional radiology and cardiology procedures using the realistic 3D patient models. Skin dose is calculated using data from Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Reports (RDSRs). SkinCare validation was performed by using the data from the Siemens Artis Zee Biplane fluoroscopy system and conducting “Acceptance and quality control protocols for skin dose calculating software solutions in interventional cardiology” developed and tested in the frame of the VERIDIC project. XR-RV3 Gafchromic films were used as dosimeters to compare peak skin doses (PSDs) and dose maps obtained through measurements and calculations. DICOM RDSRs from four fluoroscopy systems of different vendors (Canon, GE, Philips, and Siemens) were used for the development of the SkinCare and for the comparison of skin dose maps generated using SkinCare to skin dose maps generated by different commercial software tools (Dose Tracking System (DTS) from Canon, RadimetricsTM from Bayer and RDM from MEDSQUARE). The same RDSRs generated during a cardiology clinical procedure (percutaneous coronary intervention—PCI) were used for comparison. Results: Validation performed using VERIDIC's protocols for skin dose calculation software showed that PSD calculated by SkinCare is within 17% and 16% accuracy compared to measurements using XR-RV3 Gafchromic films for fundamental irradiation setups and simplified clinical procedures, respectively. Good visual agreement between dose maps generated by SkinCare and DTS, RadimetricsTM and RDM was obtained. Conclusions: SkinCare is proved to be very convenient solution that can be used for monitoring delivered dose following interventional procedures. © 2021 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.",
journal = "Journal of Applied Clinical Medical Physics",
title = "Vendor‐independent skin dose mapping application for interventional radiology and cardiology",
volume = "22",
number = "2",
pages = "145-157",
doi = "10.1002/acm2.13167"
}
Krajinović, M., Kržanović, N.,& Ciraj-Bjelac, O.. (2021). Vendor‐independent skin dose mapping application for interventional radiology and cardiology. in Journal of Applied Clinical Medical Physics, 22(2), 145-157.
https://doi.org/10.1002/acm2.13167
Krajinović M, Kržanović N, Ciraj-Bjelac O. Vendor‐independent skin dose mapping application for interventional radiology and cardiology. in Journal of Applied Clinical Medical Physics. 2021;22(2):145-157.
doi:10.1002/acm2.13167 .
Krajinović, Marko, Kržanović, Nikola, Ciraj-Bjelac, Olivera, "Vendor‐independent skin dose mapping application for interventional radiology and cardiology" in Journal of Applied Clinical Medical Physics, 22, no. 2 (2021):145-157,
https://doi.org/10.1002/acm2.13167 . .
 1 2 1 1

Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project

(2021)

TY  - JOUR
AU  - Kržanović, Nikola
AU  - Blideanu, Valentin
AU  - Ciraj-Bjelac, Olivera
AU  - Plagnard, Johann
AU  - Schoonjans, Werner
AU  - Živanović, Miloš Z.
AU  - Dabin, Jérémie
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9554
AB  - Interventional procedures in radiology and cardiology are associated with high dose to the patient. Accurate dosimetry is essential and calibration of the equipment is a means to provide the necessary accuracy of dose assessment. The objective of this work is to investigate the performance of dosimeters used in interventional procedures in different standard and non-standard X-ray radiation qualities, and to investigate potential uncertainties related to dose measurements, thus improving accuracy of patient dosimetry in interventional procedures. Four new reference radiation qualities dedicated to interventional cardiology applications have been established, allowing calibration of dosimeters used in clinical conditions with appropriate traceability to primary standards. Testing of solid-state semiconductor detectors and thermoluminescent dosimeter properties, e.g. influence of photon energy, angle of incidence and dose rate, was performed in the standard and non-standard radiation qualities. Both dosimeter types showed good performance in the non-standard beams during all performance tests. Solid-state dosimeters displayed weak dependence on energy, angle of incidence and dose rate, in the range defined by the manufacturer and requirements of the international standard. Thermoluminescent dosimeters displayed excellent linearity and angular dependence. The influence of energy dependence on measurement uncertainty can be reduced if appropriate radiation quality is selected for calibration. © 2021 Elsevier Ltd
T1  - Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project
VL  - 141
SP  - 106515
ER  - 
@article{
author = "Kržanović, Nikola and Blideanu, Valentin and Ciraj-Bjelac, Olivera and Plagnard, Johann and Schoonjans, Werner and Živanović, Miloš Z. and Dabin, Jérémie",
year = "2021",
abstract = "Interventional procedures in radiology and cardiology are associated with high dose to the patient. Accurate dosimetry is essential and calibration of the equipment is a means to provide the necessary accuracy of dose assessment. The objective of this work is to investigate the performance of dosimeters used in interventional procedures in different standard and non-standard X-ray radiation qualities, and to investigate potential uncertainties related to dose measurements, thus improving accuracy of patient dosimetry in interventional procedures. Four new reference radiation qualities dedicated to interventional cardiology applications have been established, allowing calibration of dosimeters used in clinical conditions with appropriate traceability to primary standards. Testing of solid-state semiconductor detectors and thermoluminescent dosimeter properties, e.g. influence of photon energy, angle of incidence and dose rate, was performed in the standard and non-standard radiation qualities. Both dosimeter types showed good performance in the non-standard beams during all performance tests. Solid-state dosimeters displayed weak dependence on energy, angle of incidence and dose rate, in the range defined by the manufacturer and requirements of the international standard. Thermoluminescent dosimeters displayed excellent linearity and angular dependence. The influence of energy dependence on measurement uncertainty can be reduced if appropriate radiation quality is selected for calibration. © 2021 Elsevier Ltd",
title = "Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project",
volume = "141",
pages = "106515",
}
Kržanović, N., Blideanu, V., Ciraj-Bjelac, O., Plagnard, J., Schoonjans, W., Živanović, M. Z.,& Dabin, J.. (2021). Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project. in Radiation Measurements, 141, 106515.
https://doi.org/10.1016/j.radmeas.2021.106515
Kržanović N, Blideanu V, Ciraj-Bjelac O, Plagnard J, Schoonjans W, Živanović MZ, Dabin J. Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project. in Radiation Measurements. 2021;141:106515.
doi:10.1016/j.radmeas.2021.106515 .
Kržanović, Nikola, Blideanu, Valentin, Ciraj-Bjelac, Olivera, Plagnard, Johann, Schoonjans, Werner, Živanović, Miloš Z., Dabin, Jérémie, "Performance testing of dosimeters used in interventional radiology: Results from the VERIDIC project" in Radiation Measurements, 141 (2021):106515,
https://doi.org/10.1016/j.radmeas.2021.106515 . .
 2 1

Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing

(2021)

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Gajić-Kvaščev, Maja
AU  - Volkov-Husović, Tatjana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9162
AB  - Morphology and development of surface damage of alumina-based materials, resulting from cavitation erosion is studied in this paper. Two series of samples were prepared: samples without fibers and those with the addition of 2 wt % of ceramic fibers. The form of surface damage is considered to be the information carrier for the analysis of the resistance of materials to cavitation and the quality of this information is determined. The surface of the samples was monitored in defined time intervals in order to prepare the digitized image suitable for further analysis using image analysis software. The principal component analysis was applied to examine the appearance of certain morphological characteristics depending on the behavior of the material during cavitation erosion. It was concluded that the addition of ceramic fibers gained in importance after a long time of cavitation erosion, while during a starting period of time the difference in the morphology of the damage is not very observable. © 2021 Elsevier B.V.
T2  - Wear
T1  - Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing
VL  - 474-475
SP  - 203877
DO  - 10.1016/j.wear.2021.203877
ER  - 
@article{
author = "Vuksanović, Marija M. and Gajić-Kvaščev, Maja and Volkov-Husović, Tatjana and Jančić-Heinemann, Radmila",
year = "2021",
abstract = "Morphology and development of surface damage of alumina-based materials, resulting from cavitation erosion is studied in this paper. Two series of samples were prepared: samples without fibers and those with the addition of 2 wt % of ceramic fibers. The form of surface damage is considered to be the information carrier for the analysis of the resistance of materials to cavitation and the quality of this information is determined. The surface of the samples was monitored in defined time intervals in order to prepare the digitized image suitable for further analysis using image analysis software. The principal component analysis was applied to examine the appearance of certain morphological characteristics depending on the behavior of the material during cavitation erosion. It was concluded that the addition of ceramic fibers gained in importance after a long time of cavitation erosion, while during a starting period of time the difference in the morphology of the damage is not very observable. © 2021 Elsevier B.V.",
journal = "Wear",
title = "Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing",
volume = "474-475",
pages = "203877",
doi = "10.1016/j.wear.2021.203877"
}
Vuksanović, M. M., Gajić-Kvaščev, M., Volkov-Husović, T.,& Jančić-Heinemann, R.. (2021). Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing. in Wear, 474-475, 203877.
https://doi.org/10.1016/j.wear.2021.203877
Vuksanović MM, Gajić-Kvaščev M, Volkov-Husović T, Jančić-Heinemann R. Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing. in Wear. 2021;474-475:203877.
doi:10.1016/j.wear.2021.203877 .
Vuksanović, Marija M., Gajić-Kvaščev, Maja, Volkov-Husović, Tatjana, Jančić-Heinemann, Radmila, "Advanced damage resistance monitoring procedure on the composite materials’ surface-exposed to cavitation testing" in Wear, 474-475 (2021):203877,
https://doi.org/10.1016/j.wear.2021.203877 . .

Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites

(2021)

TY  - JOUR
AU  - Jelić, Aleksandra
AU  - Marinković, Aleksandar D.
AU  - Sekulić, Milica
AU  - Dikić, Stefan
AU  - Ugrinović, Vukašin
AU  - Putić, Slaviša
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9562
AB  - In this study, halloysite nanotubes (HNT) were modified by: 3-glycidyloxypropyltrimethoxysilane (GLYMO), 3-aminopropyltrimethoxysilane (APTES), and 2,2-Bis[4-(glycidyloxy) phenyl] propane (DGEBA), and incorporated in the epoxy resin matrix to enhance its mechanical properties. The HNT/epoxy nanocomposite materials were prepared by mixing different ratios of untreated/treated HNT with neat epoxy resin. Characterization of untreated/treated HNT was performed by Fourier-transformation infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). The quantity of grafted molecules and thermal stability of newly synthesized materials were determined by thermogravimetric (TG) and derivative thermogravimetric (DTG) analysis. Tensile properties of newly synthesized materials were compared, and scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis of the fracture surfaces were performed. Incorporation of APTES modified HNT (HNTAPT) and two-step modification APTES followed by DGEBA (HNTAPTDG) has increased the tensile strength of the nanocomposite materials up to 72% and 61%, and strain at break up to 1082% and 1216%, respectively, compared to neat epoxy. It was concluded that the modification of HNT contributed to the enhancement of the dispersion and the cross-linking in the epoxy resin matrix. © 2021 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites
VL  - 42
IS  - 5
SP  - 2180
EP  - 2192
DO  - 10.1002/pc.25967
ER  - 
@article{
author = "Jelić, Aleksandra and Marinković, Aleksandar D. and Sekulić, Milica and Dikić, Stefan and Ugrinović, Vukašin and Pavlović, Vladimir and Putić, Slaviša",
year = "2021",
abstract = "In this study, halloysite nanotubes (HNT) were modified by: 3-glycidyloxypropyltrimethoxysilane (GLYMO), 3-aminopropyltrimethoxysilane (APTES), and 2,2-Bis[4-(glycidyloxy) phenyl] propane (DGEBA), and incorporated in the epoxy resin matrix to enhance its mechanical properties. The HNT/epoxy nanocomposite materials were prepared by mixing different ratios of untreated/treated HNT with neat epoxy resin. Characterization of untreated/treated HNT was performed by Fourier-transformation infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). The quantity of grafted molecules and thermal stability of newly synthesized materials were determined by thermogravimetric (TG) and derivative thermogravimetric (DTG) analysis. Tensile properties of newly synthesized materials were compared, and scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis of the fracture surfaces were performed. Incorporation of APTES modified HNT (HNTAPT) and two-step modification APTES followed by DGEBA (HNTAPTDG) has increased the tensile strength of the nanocomposite materials up to 72% and 61%, and strain at break up to 1082% and 1216%, respectively, compared to neat epoxy. It was concluded that the modification of HNT contributed to the enhancement of the dispersion and the cross-linking in the epoxy resin matrix. © 2021 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites",
volume = "42",
number = "5",
pages = "2180-2192",
doi = "10.1002/pc.25967"
}
Jelić, A., Marinković, A. D., Sekulić, M., Dikić, S., Ugrinović, V., Pavlović, V.,& Putić, S.. (2021). Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites. in Polymer Composites, 42(5), 2180-2192.
https://doi.org/10.1002/pc.25967
Jelić A, Marinković AD, Sekulić M, Dikić S, Ugrinović V, Pavlović V, Putić S. Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites. in Polymer Composites. 2021;42(5):2180-2192.
doi:10.1002/pc.25967 .
Jelić, Aleksandra, Marinković, Aleksandar D., Sekulić, Milica, Dikić, Stefan, Ugrinović, Vukašin, Pavlović, Vladimir, Putić, Slaviša, "Design of halloysite modification for improvement of mechanical properties of the epoxy based nanocomposites" in Polymer Composites, 42, no. 5 (2021):2180-2192,
https://doi.org/10.1002/pc.25967 . .
 1 2 1

Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials

(Springer International Publishing, 2021)

TY  - CHAP
AU  - Jelić, Aleksandra
AU  - Božić, Aleksandra
AU  - Stamenović, Marina
AU  - Sekulić, Milica
AU  - Porobić, Slavica
AU  - Dikić, Stefan
AU  - Putić, Slaviša
AU  - Mitrović, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9636
AB  - Halloysite nanotubes (HNTs), naturally occurring as aluminosilicate nanoclay mineral, have recently emerged as a possible nanomaterial for countless applications due to their specific chemical structure, tubular shape, high aspect ratio, biocompatibility and low toxicity. In this study, HNTs were incorporated into the epoxy resin matrix to improve its mechanical properties and thermal stability. However, heterogeneous size, surface charge and surface hydrogen bond formation, result in aggregation of HNTs in epoxies to a certain extent. Three specific techniques were used to integrate HNTs into neat epoxy resin (NE). The structure and morphology of the embedded nanotubes were confirmed by Fourier-transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). Tensile testing was carried out and the fractured surface of the tested specimen was analysed using scanning electron microscopy (SEM). The thermal stability of the prepared nanocomposite materials was investigated by thermogravimetric (TG) and derivative thermogravimetry (DTG) studies. The obtained results indicated that improved properties of HNTs/epoxy nanocomposite materials were related to the unique properties of well-dispersed HNTs, agglomerate scale, and reduced void presence, and could be controlled by the manufacturing processes.
PB  - Springer International Publishing
T2  - Experimental and Computational Investigations in Engineering
T1  - Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials
SP  - 310
EP  - 325
DO  - 10.1007/978-3-030-58362-0_18
ER  - 
@inbook{
author = "Jelić, Aleksandra and Božić, Aleksandra and Stamenović, Marina and Sekulić, Milica and Porobić, Slavica and Dikić, Stefan and Putić, Slaviša and Mitrović, Nenad and Mladenović, Goran and Mitrović, Aleksandra",
year = "2021",
abstract = "Halloysite nanotubes (HNTs), naturally occurring as aluminosilicate nanoclay mineral, have recently emerged as a possible nanomaterial for countless applications due to their specific chemical structure, tubular shape, high aspect ratio, biocompatibility and low toxicity. In this study, HNTs were incorporated into the epoxy resin matrix to improve its mechanical properties and thermal stability. However, heterogeneous size, surface charge and surface hydrogen bond formation, result in aggregation of HNTs in epoxies to a certain extent. Three specific techniques were used to integrate HNTs into neat epoxy resin (NE). The structure and morphology of the embedded nanotubes were confirmed by Fourier-transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). Tensile testing was carried out and the fractured surface of the tested specimen was analysed using scanning electron microscopy (SEM). The thermal stability of the prepared nanocomposite materials was investigated by thermogravimetric (TG) and derivative thermogravimetry (DTG) studies. The obtained results indicated that improved properties of HNTs/epoxy nanocomposite materials were related to the unique properties of well-dispersed HNTs, agglomerate scale, and reduced void presence, and could be controlled by the manufacturing processes.",
publisher = "Springer International Publishing",
journal = "Experimental and Computational Investigations in Engineering",
booktitle = "Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials",
pages = "310-325",
doi = "10.1007/978-3-030-58362-0_18"
}
Jelić, A., Božić, A., Stamenović, M., Sekulić, M., Porobić, S., Dikić, S., Putić, S., Mitrović, N., Mladenović, G.,& Mitrović, A.. (2021). Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials. in Experimental and Computational Investigations in Engineering
Springer International Publishing., 310-325.
https://doi.org/10.1007/978-3-030-58362-0_18
Jelić A, Božić A, Stamenović M, Sekulić M, Porobić S, Dikić S, Putić S, Mitrović N, Mladenović G, Mitrović A. Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials. in Experimental and Computational Investigations in Engineering. 2021;:310-325.
doi:10.1007/978-3-030-58362-0_18 .
Jelić, Aleksandra, Božić, Aleksandra, Stamenović, Marina, Sekulić, Milica, Porobić, Slavica, Dikić, Stefan, Putić, Slaviša, Mitrović, Nenad, Mladenović, Goran, Mitrović, Aleksandra, "Effects of dispersion and particle-matrix interactions on mechanical and thermal properties of hnt/epoxy nanocomposite materials" in Experimental and Computational Investigations in Engineering (2021):310-325,
https://doi.org/10.1007/978-3-030-58362-0_18 . .

Ferromagnetism in intermetallic Hf6Co23 alloy

(2021)

TY  - JOUR
AU  - Sewak, R
AU  - Dey, C C
AU  - Toprek, Dragan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9704
AB  - Ferromagnetism in Hf6Co23 intermetallic alloy at room temperature has been confirmed from perturbed angular correlation measurements using 181Hf probe. The strength of hyperfine magnetic field at room temperature for this intermetallic compound has been found to be Bhf=2.5(2) T while the earlier report of hyperfine magnetic field in Hf6Co23 has discrepancy. The hyperfine magnetic field at Ta impurity site has also been calculated by density functional theory and the result is found to be Bhf=-4.964 T (at 0 K). This value is closer to the present experimental value measured at 298 K. The compound Hf6Co23 has been found to decompose reversibly to Hf2Co7 at 473 K. Ferromagnetism in this material has been found up to 423 K and its Curie temperature is, therefore, set as TC&gt;423 K. From recent measurements by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, electron probe microanalysis and differential scanning calorimetry, Hf6Co23 was reported to be stable in a wide range of temperature and there was no phase existence of Hf2Co7 while the previous reported phase diagram showed a decomposition of Hf6Co23 to Hf2Co7 at a higher temperature. © 2021 Elsevier B.V.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Ferromagnetism in intermetallic Hf6Co23 alloy
VL  - 534
SP  - 168042
DO  - 10.1016/j.jmmm.2021.168042
ER  - 
@article{
author = "Sewak, R and Dey, C C and Toprek, Dragan",
year = "2021",
abstract = "Ferromagnetism in Hf6Co23 intermetallic alloy at room temperature has been confirmed from perturbed angular correlation measurements using 181Hf probe. The strength of hyperfine magnetic field at room temperature for this intermetallic compound has been found to be Bhf=2.5(2) T while the earlier report of hyperfine magnetic field in Hf6Co23 has discrepancy. The hyperfine magnetic field at Ta impurity site has also been calculated by density functional theory and the result is found to be Bhf=-4.964 T (at 0 K). This value is closer to the present experimental value measured at 298 K. The compound Hf6Co23 has been found to decompose reversibly to Hf2Co7 at 473 K. Ferromagnetism in this material has been found up to 423 K and its Curie temperature is, therefore, set as TC&gt;423 K. From recent measurements by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, electron probe microanalysis and differential scanning calorimetry, Hf6Co23 was reported to be stable in a wide range of temperature and there was no phase existence of Hf2Co7 while the previous reported phase diagram showed a decomposition of Hf6Co23 to Hf2Co7 at a higher temperature. © 2021 Elsevier B.V.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Ferromagnetism in intermetallic Hf6Co23 alloy",
volume = "534",
pages = "168042",
doi = "10.1016/j.jmmm.2021.168042"
}
Sewak, R., Dey, C. C.,& Toprek, D.. (2021). Ferromagnetism in intermetallic Hf6Co23 alloy. in Journal of Magnetism and Magnetic Materials, 534, 168042.
https://doi.org/10.1016/j.jmmm.2021.168042
Sewak R, Dey CC, Toprek D. Ferromagnetism in intermetallic Hf6Co23 alloy. in Journal of Magnetism and Magnetic Materials. 2021;534:168042.
doi:10.1016/j.jmmm.2021.168042 .
Sewak, R, Dey, C C, Toprek, Dragan, "Ferromagnetism in intermetallic Hf6Co23 alloy" in Journal of Magnetism and Magnetic Materials, 534 (2021):168042,
https://doi.org/10.1016/j.jmmm.2021.168042 . .

Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Cirkovic, P.
AU  - Dordevic, M.
AU  - Milenovic, P.
AU  - Milosevic, J.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9703
AB  - The rate for Higgs (H) bosons production in association with either one (t H) or two (t t ¯ H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of 13Te by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137fb-1. The analysis is aimed at events that contain H → W W , H → τ τ , or H → Z Z decays and each of the top quark(s) decays either to lepton+jets or all-jet channels. Sensitivity to signal is maximized by including ten signatures in the analysis, depending on the lepton multiplicity. The separation among t H , t t ¯ H , and the backgrounds is enhanced through machine-learning techniques and matrix-element methods. The measured production rates for the t t ¯ H and t H signals correspond to 0.92±0.19(stat)-0.13+0.17(syst) and 5.7±2.7(stat)±3.0(syst) of their respective standard model (SM) expectations. The corresponding observed (expected) significance amounts to 4.7 (5.2) standard deviations for t t ¯ H , and to 1.4 (0.3) for t H production. Assuming that the Higgs boson coupling to the tau lepton is equal in strength to its expectation in the SM, the coupling yt of the Higgs boson to the top quark divided by its SM expectation, κt=yt/ytSM, is constrained to be within - 0.9 < κt< - 0.7 or 0.7 < κt< 1.1 , at 95% confidence level. This result is the most sensitive measurement of the t t ¯ H production rate to date.
T2  - European Physical Journal C
T1  - Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te
VL  - 81
IS  - 4
SP  - 378
DO  - 10.1140/epjc/s10052-021-09014-x
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adzic, P. and Cirkovic, P. and Dordevic, M. and Milenovic, P. and Milosevic, J.",
year = "2021",
abstract = "The rate for Higgs (H) bosons production in association with either one (t H) or two (t t ¯ H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of 13Te by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137fb-1. The analysis is aimed at events that contain H → W W , H → τ τ , or H → Z Z decays and each of the top quark(s) decays either to lepton+jets or all-jet channels. Sensitivity to signal is maximized by including ten signatures in the analysis, depending on the lepton multiplicity. The separation among t H , t t ¯ H , and the backgrounds is enhanced through machine-learning techniques and matrix-element methods. The measured production rates for the t t ¯ H and t H signals correspond to 0.92±0.19(stat)-0.13+0.17(syst) and 5.7±2.7(stat)±3.0(syst) of their respective standard model (SM) expectations. The corresponding observed (expected) significance amounts to 4.7 (5.2) standard deviations for t t ¯ H , and to 1.4 (0.3) for t H production. Assuming that the Higgs boson coupling to the tau lepton is equal in strength to its expectation in the SM, the coupling yt of the Higgs boson to the top quark divided by its SM expectation, κt=yt/ytSM, is constrained to be within - 0.9 < κt< - 0.7 or 0.7 < κt< 1.1 , at 95% confidence level. This result is the most sensitive measurement of the t t ¯ H production rate to date.",
journal = "European Physical Journal C",
title = "Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te",
volume = "81",
number = "4",
pages = "378",
doi = "10.1140/epjc/s10052-021-09014-x"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adzic, P., Cirkovic, P., Dordevic, M., Milenovic, P.,& Milosevic, J.. (2021). Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te. in European Physical Journal C, 81(4), 378.
https://doi.org/10.1140/epjc/s10052-021-09014-x
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adzic P, Cirkovic P, Dordevic M, Milenovic P, Milosevic J. Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te. in European Physical Journal C. 2021;81(4):378.
doi:10.1140/epjc/s10052-021-09014-x .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adzic, P., Cirkovic, P., Dordevic, M., Milenovic, P., Milosevic, J., "Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s=13Te" in European Physical Journal C, 81, no. 4 (2021):378,
https://doi.org/10.1140/epjc/s10052-021-09014-x . .
 2

Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9696
AB  - Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.
T2  - Journal of High Energy Physics
T1  - Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV
VL  - 2021
IS  - 4
SP  - 124
DO  - 10.1007/JHEP04(2021)124
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.",
journal = "Journal of High Energy Physics",
title = "Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV",
volume = "2021",
number = "4",
pages = "124",
doi = "10.1007/JHEP04(2021)124"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV. in Journal of High Energy Physics, 2021(4), 124.
https://doi.org/10.1007/JHEP04(2021)124
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV. in Journal of High Energy Physics. 2021;2021(4):124.
doi:10.1007/JHEP04(2021)124 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):124,
https://doi.org/10.1007/JHEP04(2021)124 . .
 4 1

Critical assessment of protein intrinsic disorder prediction

(2021)

TY  - JOUR
AU  - Necci, Marco
AU  - Piovesan, Damiano
AU  - Tosatto, Silvio C. E.
AU  - Veljković, Nevena V.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9698
AB  - Intrinsically disordered proteins, defying the traditional protein structure–function paradigm, are a challenge to study experimentally. Because a large part of our knowledge rests on computational predictions, it is crucial that their accuracy is high. The Critical Assessment of protein Intrinsic Disorder prediction (CAID) experiment was established as a community-based blind test to determine the state of the art in prediction of intrinsically disordered regions and the subset of residues involved in binding. A total of 43 methods were evaluated on a dataset of 646 proteins from DisProt. The best methods use deep learning techniques and notably outperform physicochemical methods. The top disorder predictor has F max = 0.483 on the full dataset and F max = 0.792 following filtering out of bona fide structured regions. Disordered binding regions remain hard to predict, with F max = 0.231. Interestingly, computing times among methods can vary by up to four orders of magnitude.
T2  - Nature Methods
T1  - Critical assessment of protein intrinsic disorder prediction
VL  - 18
IS  - 5
SP  - 472
EP  - 481
DO  - 10.1038/s41592-021-01117-3
ER  - 
@article{
author = "Necci, Marco and Piovesan, Damiano and Tosatto, Silvio C. E. and Davidović, Radoslav S. and Veljković, Nevena V.",
year = "2021",
abstract = "Intrinsically disordered proteins, defying the traditional protein structure–function paradigm, are a challenge to study experimentally. Because a large part of our knowledge rests on computational predictions, it is crucial that their accuracy is high. The Critical Assessment of protein Intrinsic Disorder prediction (CAID) experiment was established as a community-based blind test to determine the state of the art in prediction of intrinsically disordered regions and the subset of residues involved in binding. A total of 43 methods were evaluated on a dataset of 646 proteins from DisProt. The best methods use deep learning techniques and notably outperform physicochemical methods. The top disorder predictor has F max = 0.483 on the full dataset and F max = 0.792 following filtering out of bona fide structured regions. Disordered binding regions remain hard to predict, with F max = 0.231. Interestingly, computing times among methods can vary by up to four orders of magnitude.",
journal = "Nature Methods",
title = "Critical assessment of protein intrinsic disorder prediction",
volume = "18",
number = "5",
pages = "472-481",
doi = "10.1038/s41592-021-01117-3"
}
Necci, M., Piovesan, D., Tosatto, S. C. E., Davidović, R. S.,& Veljković, N. V.. (2021). Critical assessment of protein intrinsic disorder prediction. in Nature Methods, 18(5), 472-481.
https://doi.org/10.1038/s41592-021-01117-3
Necci M, Piovesan D, Tosatto SCE, Davidović RS, Veljković NV. Critical assessment of protein intrinsic disorder prediction. in Nature Methods. 2021;18(5):472-481.
doi:10.1038/s41592-021-01117-3 .
Necci, Marco, Piovesan, Damiano, Tosatto, Silvio C. E., Davidović, Radoslav S., Veljković, Nevena V., "Critical assessment of protein intrinsic disorder prediction" in Nature Methods, 18, no. 5 (2021):472-481,
https://doi.org/10.1038/s41592-021-01117-3 . .
 42 23 15

Properties of Self-compacting Concrete Produced with Biomass Wood Ash

(2021)

TY  - JOUR
AU  - Grdić, Zoran
AU  - Topličić-Ćurčić, Gordana
AU  - Grdić, Dušan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9701
AB  - The demand of the contemporary society for renewable energy sources lead to the increase of the bio-power plants. Accordingly, the amount of ash generated by burning the biomass is increased, and its disposal becomes a large environmental problem. The paper presents the research of potential use of biomass wood ash as a partial replacement for coal fly ash (10%, 20%, 30% and 40% of mass) in production of self-compacting concrete (SCC). The effects of biomass wood ash on the properties of SCC in fresh and hardened states have been examined, as well as on the properties of durability. Test results indicated that the biomass wood ash slightly reduces the flowability and passing ability of SCC, while its addition enhances the viscosity of SCC and significantly prevents segregation and bleeding. SCCs with the contents of biomass wood ash up to 20% have approximately same mechanical strength as the reference mixture. Biomass wood ash has no negative effect on the resistance of concrete to the action of water under pressure, but a decrease of freeze/thaw resistance with de-icing salt is detected as its contents increases. The addition of biomass wood ash into SCC increases the drying shrinkage in the initial period of drying (up to 14 days), and it is decreased in a later phase. © 2021, Strojarski Facultet. All rights reserved.
T2  - Tehnicki vjesnik - Technical Gazette
T1  - Properties of Self-compacting Concrete Produced with Biomass Wood Ash
VL  - 28
IS  - 2
SP  - 495
EP  - 502
DO  - 10.17559/TV-20200214103332
ER  - 
@article{
author = "Ristić, Nenad and Grdić, Zoran and Topličić-Ćurčić, Gordana and Grdić, Dušan and Dodevski, Vladimir",
year = "2021",
abstract = "The demand of the contemporary society for renewable energy sources lead to the increase of the bio-power plants. Accordingly, the amount of ash generated by burning the biomass is increased, and its disposal becomes a large environmental problem. The paper presents the research of potential use of biomass wood ash as a partial replacement for coal fly ash (10%, 20%, 30% and 40% of mass) in production of self-compacting concrete (SCC). The effects of biomass wood ash on the properties of SCC in fresh and hardened states have been examined, as well as on the properties of durability. Test results indicated that the biomass wood ash slightly reduces the flowability and passing ability of SCC, while its addition enhances the viscosity of SCC and significantly prevents segregation and bleeding. SCCs with the contents of biomass wood ash up to 20% have approximately same mechanical strength as the reference mixture. Biomass wood ash has no negative effect on the resistance of concrete to the action of water under pressure, but a decrease of freeze/thaw resistance with de-icing salt is detected as its contents increases. The addition of biomass wood ash into SCC increases the drying shrinkage in the initial period of drying (up to 14 days), and it is decreased in a later phase. © 2021, Strojarski Facultet. All rights reserved.",
journal = "Tehnicki vjesnik - Technical Gazette",
title = "Properties of Self-compacting Concrete Produced with Biomass Wood Ash",
volume = "28",
number = "2",
pages = "495-502",
doi = "10.17559/TV-20200214103332"
}
Ristić, N., Grdić, Z., Topličić-Ćurčić, G., Grdić, D.,& Dodevski, V.. (2021). Properties of Self-compacting Concrete Produced with Biomass Wood Ash. in Tehnicki vjesnik - Technical Gazette, 28(2), 495-502.
https://doi.org/10.17559/TV-20200214103332
Ristić N, Grdić Z, Topličić-Ćurčić G, Grdić D, Dodevski V. Properties of Self-compacting Concrete Produced with Biomass Wood Ash. in Tehnicki vjesnik - Technical Gazette. 2021;28(2):495-502.
doi:10.17559/TV-20200214103332 .
Ristić, Nenad, Grdić, Zoran, Topličić-Ćurčić, Gordana, Grdić, Dušan, Dodevski, Vladimir, "Properties of Self-compacting Concrete Produced with Biomass Wood Ash" in Tehnicki vjesnik - Technical Gazette, 28, no. 2 (2021):495-502,
https://doi.org/10.17559/TV-20200214103332 . .

Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?

(2021)

TY  - JOUR
AU  - Banjac, Katarina
AU  - Gluvić, Zoran
AU  - Isenović, Esma R.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9697
AB  - Thyroid nodules are among highly prevalent thyroid diseases. To make a distinction between benign and malignant thyroid nodules are of cumbersome significance for each endocrinologist. There is no unique and completely accurate diagnostic test, method, or even biomarker that points to a malignant thyroid nodule. Many studies in modern thyroidology are conducted to determine the usefulness of individual biomarkers, which could help clinicians detect thyroid nodules' potential malignant nature. One interesting biomarker with a promising diagnostic potential for the thyroid gland pathological conditions is nitric oxide (NO). Inducible nitric oxide synthase expression is increased in thyroiditis cases and even more in thyroid carcinoma cases, directly connected with increased NO levels in both pathological conditions. We hypothesize that the basal levels of nitrite/nitrate in serum and biopsy washout could indicate nodules' malignant nature.
T2  - Medical Hypotheses
T1  - Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?
VL  - 150
SP  - 110569
DO  - 10.1016/j.mehy.2021.110569
ER  - 
@article{
author = "Samardžić, Vladimir and Banjac, Katarina and Obradović, Milan and Gluvić, Zoran and Isenović, Esma R.",
year = "2021",
abstract = "Thyroid nodules are among highly prevalent thyroid diseases. To make a distinction between benign and malignant thyroid nodules are of cumbersome significance for each endocrinologist. There is no unique and completely accurate diagnostic test, method, or even biomarker that points to a malignant thyroid nodule. Many studies in modern thyroidology are conducted to determine the usefulness of individual biomarkers, which could help clinicians detect thyroid nodules' potential malignant nature. One interesting biomarker with a promising diagnostic potential for the thyroid gland pathological conditions is nitric oxide (NO). Inducible nitric oxide synthase expression is increased in thyroiditis cases and even more in thyroid carcinoma cases, directly connected with increased NO levels in both pathological conditions. We hypothesize that the basal levels of nitrite/nitrate in serum and biopsy washout could indicate nodules' malignant nature.",
journal = "Medical Hypotheses",
title = "Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?",
volume = "150",
pages = "110569",
doi = "10.1016/j.mehy.2021.110569"
}
Samardžić, V., Banjac, K., Obradović, M., Gluvić, Z.,& Isenović, E. R.. (2021). Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?. in Medical Hypotheses, 150, 110569.
https://doi.org/10.1016/j.mehy.2021.110569
Samardžić V, Banjac K, Obradović M, Gluvić Z, Isenović ER. Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?. in Medical Hypotheses. 2021;150:110569.
doi:10.1016/j.mehy.2021.110569 .
Samardžić, Vladimir, Banjac, Katarina, Obradović, Milan, Gluvić, Zoran, Isenović, Esma R., "Could the level of nitrite/nitrate contribute to malignant thyroid nodule diagnostics?" in Medical Hypotheses, 150 (2021):110569,
https://doi.org/10.1016/j.mehy.2021.110569 . .

Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability

(2021)

TY  - JOUR
AU  - Bošković, Marko
AU  - Fabián, Martin
AU  - Vranješ-Đurić, Sanja
AU  - Antić, Bratislav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9699
AB  - A series of Fe3-xGdxO4 (x = 0, 0.1, 0.2) nanoparticles with an average diameter of around 8 nm were prepared by the coprecipitation method and coated by citric acid (CA). The nanoparticles show superparamagnetic behavior at room temperature and transition to a blocked state, at a temperature from ~ 89 K to ~ 213 K, depending on Gd concentration. The saturation magnetization of Fe3-xGdxO4 tended to drop for samples with a higher content of Gd. High colloidal stability is mandatory in medical applications of magnetic nanoparticles, and here we demonstrate a new procedure for its improvement. A colloidal sample of Fe3O4@CA was mechanically milled, after which dynamic light scattering and zeta potential measurements were used to monitor the hydrodynamic size and colloidal stability of the acquired suspensions. After 90 min of milling, the average hydrodynamic diameter decreased by 40%, and size distribution changed from polymodal to monomodal, while the negative zeta potential increased from − 30.5 mV to − 52.8 mV. Additionally, Fe2.80Gd0.20O4@CA nanoparticles were embedded in human serum albumin to produce magnetic microspheres (MMS), which could be used as a drug delivery platform. FE-SEM images showed that magnetic nanoparticles form clusters within MMS. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
T2  - Applied Physics A
T1  - Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability
VL  - 127
IS  - 5
SP  - 372
DO  - 10.1007/s00339-021-04509-6
ER  - 
@article{
author = "Bošković, Marko and Fabián, Martin and Vranješ-Đurić, Sanja and Antić, Bratislav",
year = "2021",
abstract = "A series of Fe3-xGdxO4 (x = 0, 0.1, 0.2) nanoparticles with an average diameter of around 8 nm were prepared by the coprecipitation method and coated by citric acid (CA). The nanoparticles show superparamagnetic behavior at room temperature and transition to a blocked state, at a temperature from ~ 89 K to ~ 213 K, depending on Gd concentration. The saturation magnetization of Fe3-xGdxO4 tended to drop for samples with a higher content of Gd. High colloidal stability is mandatory in medical applications of magnetic nanoparticles, and here we demonstrate a new procedure for its improvement. A colloidal sample of Fe3O4@CA was mechanically milled, after which dynamic light scattering and zeta potential measurements were used to monitor the hydrodynamic size and colloidal stability of the acquired suspensions. After 90 min of milling, the average hydrodynamic diameter decreased by 40%, and size distribution changed from polymodal to monomodal, while the negative zeta potential increased from − 30.5 mV to − 52.8 mV. Additionally, Fe2.80Gd0.20O4@CA nanoparticles were embedded in human serum albumin to produce magnetic microspheres (MMS), which could be used as a drug delivery platform. FE-SEM images showed that magnetic nanoparticles form clusters within MMS. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",
journal = "Applied Physics A",
title = "Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability",
volume = "127",
number = "5",
pages = "372",
doi = "10.1007/s00339-021-04509-6"
}
Bošković, M., Fabián, M., Vranješ-Đurić, S.,& Antić, B.. (2021). Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability. in Applied Physics A, 127(5), 372.
https://doi.org/10.1007/s00339-021-04509-6
Bošković M, Fabián M, Vranješ-Đurić S, Antić B. Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability. in Applied Physics A. 2021;127(5):372.
doi:10.1007/s00339-021-04509-6 .
Bošković, Marko, Fabián, Martin, Vranješ-Đurić, Sanja, Antić, Bratislav, "Magnetic nano- and micro-particles based on Gd-substituted magnetite with improved colloidal stability" in Applied Physics A, 127, no. 5 (2021):372,
https://doi.org/10.1007/s00339-021-04509-6 . .

Thermalization in the one-dimensional Salerno model lattice

(2021)

TY  - JOUR
AU  - Mithun, Thudiyangal
AU  - Maluckov, Aleksandra
AU  - Manda, Bertin Many
AU  - Skokos, Charalampos
AU  - Bishop, Alan
AU  - Khare, Avinash
AU  - Kevrekidis, Panayotis G
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9658
AB  - The Salerno model constitutes an intriguing interpolation between the integrable Ablowitz-Ladik (AL) model and the more standard (nonintegrable) discrete nonlinear Schrödinger (DNLS) one. The competition of local on-site nonlinearity and nonlinear dispersion governs the thermalization of this model. Here, we investigate the statistical mechanics of the Salerno one-dimensional lattice model in the nonintegrable case and illustrate the thermalization in the Gibbs regime. As the parameter interpolating between the two limits (from DNLS toward AL) is varied, the region in the space of initial energy and norm densities leading to thermalization expands. The thermalization in the non-Gibbs regime heavily depends on the finite system size; we explore this feature via direct numerical computations for different parametric regimes. © 2021 American Physical Society.
T2  - Physical Review E
T1  - Thermalization in the one-dimensional Salerno model lattice
VL  - 103
IS  - 3
SP  - 032211
DO  - 10.1103/PhysRevE.103.032211
ER  - 
@article{
author = "Mithun, Thudiyangal and Maluckov, Aleksandra and Manda, Bertin Many and Skokos, Charalampos and Bishop, Alan and Saxena, Avadh and Khare, Avinash and Kevrekidis, Panayotis G",
year = "2021",
abstract = "The Salerno model constitutes an intriguing interpolation between the integrable Ablowitz-Ladik (AL) model and the more standard (nonintegrable) discrete nonlinear Schrödinger (DNLS) one. The competition of local on-site nonlinearity and nonlinear dispersion governs the thermalization of this model. Here, we investigate the statistical mechanics of the Salerno one-dimensional lattice model in the nonintegrable case and illustrate the thermalization in the Gibbs regime. As the parameter interpolating between the two limits (from DNLS toward AL) is varied, the region in the space of initial energy and norm densities leading to thermalization expands. The thermalization in the non-Gibbs regime heavily depends on the finite system size; we explore this feature via direct numerical computations for different parametric regimes. © 2021 American Physical Society.",
journal = "Physical Review E",
title = "Thermalization in the one-dimensional Salerno model lattice",
volume = "103",
number = "3",
pages = "032211",
doi = "10.1103/PhysRevE.103.032211"
}
Mithun, T., Maluckov, A., Manda, B. M., Skokos, C., Bishop, A., Saxena, A., Khare, A.,& Kevrekidis, P. G.. (2021). Thermalization in the one-dimensional Salerno model lattice. in Physical Review E, 103(3), 032211.
https://doi.org/10.1103/PhysRevE.103.032211
Mithun T, Maluckov A, Manda BM, Skokos C, Bishop A, Saxena A, Khare A, Kevrekidis PG. Thermalization in the one-dimensional Salerno model lattice. in Physical Review E. 2021;103(3):032211.
doi:10.1103/PhysRevE.103.032211 .
Mithun, Thudiyangal, Maluckov, Aleksandra, Manda, Bertin Many, Skokos, Charalampos, Bishop, Alan, Saxena, Avadh, Khare, Avinash, Kevrekidis, Panayotis G, "Thermalization in the one-dimensional Salerno model lattice" in Physical Review E, 103, no. 3 (2021):032211,
https://doi.org/10.1103/PhysRevE.103.032211 . .
 1

Building integrated photovoltaics - technology status

(2021)

TY  - JOUR
AU  - Stamenić, Ljubisav
AU  - Erban, Christof
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9702
AB  - Building integrated photovoltaics modules provide a high degree of design possibilities and additional functionalities in combination with the plain electricity generation well known for standard photovoltaic installations. Consequently, the specialized know-how to understand building integrated photovoltaics, properly design and manufacture them requires much more than the electrical knowledge developed and applied in standard photovoltaic systems. Expertise of building physics and building regulations are also required on a high level. As building integrated photovoltaics modules are usually custom designed, typical electrical design and simulationols cannot be used without modifications, while deeper insight of complex shading influences and specialized overall system design are advantageous. Authors of this publication were involved in well over 1000 building integrated photovoltaics system designs and developments, and their experiences are shared. Recurring questions, issues and mistakes of various building integrated photovoltaics projects are touched, whereas special emphasis is provided on building integrated photovoltaics engineering procedures, system design complexity, as well as shading issues and differentiation of shading according to their origin.
T2  - Thermal Science
T1  - Building integrated photovoltaics - technology status
VL  - 25
IS  - 2 [Part B]
SP  - 1523
EP  - 1543
DO  - 10.2298/TSCI200929342S
ER  - 
@article{
author = "Stamenić, Ljubisav and Erban, Christof",
year = "2021",
abstract = "Building integrated photovoltaics modules provide a high degree of design possibilities and additional functionalities in combination with the plain electricity generation well known for standard photovoltaic installations. Consequently, the specialized know-how to understand building integrated photovoltaics, properly design and manufacture them requires much more than the electrical knowledge developed and applied in standard photovoltaic systems. Expertise of building physics and building regulations are also required on a high level. As building integrated photovoltaics modules are usually custom designed, typical electrical design and simulationols cannot be used without modifications, while deeper insight of complex shading influences and specialized overall system design are advantageous. Authors of this publication were involved in well over 1000 building integrated photovoltaics system designs and developments, and their experiences are shared. Recurring questions, issues and mistakes of various building integrated photovoltaics projects are touched, whereas special emphasis is provided on building integrated photovoltaics engineering procedures, system design complexity, as well as shading issues and differentiation of shading according to their origin.",
journal = "Thermal Science",
title = "Building integrated photovoltaics - technology status",
volume = "25",
number = "2 [Part B]",
pages = "1523-1543",
doi = "10.2298/TSCI200929342S"
}
Stamenić, L.,& Erban, C.. (2021). Building integrated photovoltaics - technology status. in Thermal Science, 25(2 [Part B]), 1523-1543.
https://doi.org/10.2298/TSCI200929342S
Stamenić L, Erban C. Building integrated photovoltaics - technology status. in Thermal Science. 2021;25(2 [Part B]):1523-1543.
doi:10.2298/TSCI200929342S .
Stamenić, Ljubisav, Erban, Christof, "Building integrated photovoltaics - technology status" in Thermal Science, 25, no. 2 [Part B] (2021):1523-1543,
https://doi.org/10.2298/TSCI200929342S . .

Self induced transparency pulses in transmon base quantum metamaterials

(IEEE, 2021)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Ivić, Zoran
AU  - Chizhov, Alexei
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9700
AB  - In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.
PB  - IEEE
C3  - 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
T1  - Self induced transparency pulses in transmon base quantum metamaterials
SP  - 9400673
DO  - 10.1109/INFOTEH51037.2021.9400673
ER  - 
@conference{
author = "Čevizović, Dalibor and Pržulj, Željko and Ivić, Zoran and Chizhov, Alexei",
year = "2021",
abstract = "In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.",
publisher = "IEEE",
journal = "20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)",
title = "Self induced transparency pulses in transmon base quantum metamaterials",
pages = "9400673",
doi = "10.1109/INFOTEH51037.2021.9400673"
}
Čevizović, D., Pržulj, Ž., Ivić, Z.,& Chizhov, A.. (2021). Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
IEEE., 9400673.
https://doi.org/10.1109/INFOTEH51037.2021.9400673
Čevizović D, Pržulj Ž, Ivić Z, Chizhov A. Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021). 2021;:9400673.
doi:10.1109/INFOTEH51037.2021.9400673 .
Čevizović, Dalibor, Pržulj, Željko, Ivić, Zoran, Chizhov, Alexei, "Self induced transparency pulses in transmon base quantum metamaterials" in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021) (2021):9400673,
https://doi.org/10.1109/INFOTEH51037.2021.9400673 . .

Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology

(2021)

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Xia, Yang
AU  - Benzine, Omar
AU  - Petrović, Jelena
AU  - Papan, Jelena
AU  - Lukić-Petrović, Svetlana R.
AU  - Litvinchuk, Alexander P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9691
AB  - Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.
T2  - Ceramics International
T1  - Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology
VL  - 47
IS  - 4
SP  - 4944
EP  - 4953
DO  - 10.1016/j.ceramint.2020.10.070
ER  - 
@article{
author = "Ivetić, Tamara B. and Xia, Yang and Benzine, Omar and Petrović, Jelena and Papan, Jelena and Lukić-Petrović, Svetlana R. and Litvinchuk, Alexander P.",
year = "2021",
abstract = "Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.",
journal = "Ceramics International",
title = "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology",
volume = "47",
number = "4",
pages = "4944-4953",
doi = "10.1016/j.ceramint.2020.10.070"
}
Ivetić, T. B., Xia, Y., Benzine, O., Petrović, J., Papan, J., Lukić-Petrović, S. R.,& Litvinchuk, A. P.. (2021). Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International, 47(4), 4944-4953.
https://doi.org/10.1016/j.ceramint.2020.10.070
Ivetić TB, Xia Y, Benzine O, Petrović J, Papan J, Lukić-Petrović SR, Litvinchuk AP. Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International. 2021;47(4):4944-4953.
doi:10.1016/j.ceramint.2020.10.070 .
Ivetić, Tamara B., Xia, Yang, Benzine, Omar, Petrović, Jelena, Papan, Jelena, Lukić-Petrović, Svetlana R., Litvinchuk, Alexander P., "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology" in Ceramics International, 47, no. 4 (2021):4944-4953,
https://doi.org/10.1016/j.ceramint.2020.10.070 . .
 1 3 2

Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9653
AB  - A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-08739-5
T2  - European Physical Journal C
T1  - Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)
VL  - 81
IS  - 4
SP  - 333
DO  - 10.1140/epjc/s10052-021-08959-3
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-08739-5",
journal = "European Physical Journal C",
title = "Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)",
volume = "81",
number = "4",
pages = "333",
doi = "10.1140/epjc/s10052-021-08959-3"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5). in European Physical Journal C, 81(4), 333.
https://doi.org/10.1140/epjc/s10052-021-08959-3
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5). in European Physical Journal C. 2021;81(4):333.
doi:10.1140/epjc/s10052-021-08959-3 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Erratum to: Search for dark matter produced in association with a leptonically decaying Z boson in proton–proton collisions at s = 13 Te (The European Physical Journal C, (2021), 81, 1, (13), 10.1140/epjc/s10052-020-08739-5)" in European Physical Journal C, 81, no. 4 (2021):333,
https://doi.org/10.1140/epjc/s10052-021-08959-3 . .
 1 1

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9652
AB  - A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at s = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.
T2  - Journal of High Energy Physics
T1  - Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV
VL  - 2021
IS  - 4
SP  - 123
DO  - 10.1007/JHEP04(2021)123
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at s = 13 TeV, corresponding to an integrated luminosity of 137 fb−1, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.",
journal = "Journal of High Energy Physics",
title = "Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV",
volume = "2021",
number = "4",
pages = "123",
doi = "10.1007/JHEP04(2021)123"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(4), 123.
https://doi.org/10.1007/JHEP04(2021)123
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(4):123.
doi:10.1007/JHEP04(2021)123 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):123,
https://doi.org/10.1007/JHEP04(2021)123 . .
 4 8

Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9651
AB  - Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb−1. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum pT of the Z boson and pT of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and pT> 10 GeV, at least one lepton with pT> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have pT> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV.
T2  - Journal of High Energy Physics
T1  - Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV
VL  - 2021
IS  - 4
SP  - 109
DO  - 10.1007/JHEP04(2021)109
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb−1. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum pT of the Z boson and pT of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and pT> 10 GeV, at least one lepton with pT> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have pT> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV.",
journal = "Journal of High Energy Physics",
title = "Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV",
volume = "2021",
number = "4",
pages = "109",
doi = "10.1007/JHEP04(2021)109"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(4), 109.
https://doi.org/10.1007/JHEP04(2021)109
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(4):109.
doi:10.1007/JHEP04(2021)109 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 4 (2021):109,
https://doi.org/10.1007/JHEP04(2021)109 . .
 1

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9650
AB  - A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into γγb b ¯. The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling κλ and the coupling between a pair of Higgs bosons and a pair of vector bosons c2V are constrained within the ranges −3.3 < κλ< 8.5 and −1.3 < c2V< 3.5 at 95% confidence level. Constraints on κλ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of κλ and the top quark Yukawa coupling modifier κt.
T2  - Journal of High Energy Physics
T1  - Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV
VL  - 2021
IS  - 3
SP  - 257
DO  - 10.1007/JHEP03(2021)257
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb−1. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into γγb b ¯. The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling κλ and the coupling between a pair of Higgs bosons and a pair of vector bosons c2V are constrained within the ranges −3.3 < κλ< 8.5 and −1.3 < c2V< 3.5 at 95% confidence level. Constraints on κλ are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of κλ and the top quark Yukawa coupling modifier κt.",
journal = "Journal of High Energy Physics",
title = "Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV",
volume = "2021",
number = "3",
pages = "257",
doi = "10.1007/JHEP03(2021)257"
}
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics, 2021(3), 257.
https://doi.org/10.1007/JHEP03(2021)257
Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Đorđević M, Milenović P, Milošević J. Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(3):257.
doi:10.1007/JHEP03(2021)257 .
Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 3 (2021):257,
https://doi.org/10.1007/JHEP03(2021)257 . .
 2 1 2

Development and validation of HERWIG 7 tunes from CMS underlying-event measurements

(2021)

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Ambrogi, F.
AU  - Bergauer, T.
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9649
AB  - This paper presents new sets of parameters (“tunes”) for the underlying-event model of the  $${\textsc {herwig}} \,7$$     H E R W I G   7     event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in  $${\textsc {herwig}} \,7$$     H E R W I G   7    , and are obtained from a fit to minimum-bias data collected by the CMS experiment at  $$\sqrt{s}=0.9$$     s  = 0.9    , 7, and  $$13 \,\text {Te}\text {V}$$    13   Te      . The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.
T2  - European Physical Journal C
T1  - Development and validation of HERWIG 7 tunes from CMS underlying-event measurements
VL  - 81
IS  - 4
SP  - 312
DO  - 10.1140/epjc/s10052-021-08949-5
ER  - 
@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Bergauer, T. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "This paper presents new sets of parameters (“tunes”) for the underlying-event model of the  $${\textsc {herwig}} \,7$$     H E R W I G   7     event generator. These parameters control the description of multiple-parton interactions (MPI) and colour reconnection in  $${\textsc {herwig}} \,7$$     H E R W I G   7    , and are obtained from a fit to minimum-bias data collected by the CMS experiment at  $$\sqrt{s}=0.9$$     s  = 0.9    , 7, and  $$13 \,\text {Te}\text {V}$$    13   Te      . The tunes are based on the NNPDF 3.1 next-to-next-to-leading-order parton distribution function (PDF) set for the parton shower, and either a leading-order or next-to-next-to-leading-order PDF set for the simulation of MPI and the beam remnants. Predictions utilizing the tunes are produced for event shape observables in electron-positron collisions, and for minimum-bias, inclusive jet, top quark pair, and Z and W boson events in proton-proton collisions, and are compared with data. Each of the new tunes describes the data at a reasonable level, and the tunes using a leading-order PDF for the simulation of MPI provide the best description of the data.",
journal = "European Physical Journal C",
title = "Development and validation of HERWIG 7 tunes from CMS underlying-event measurements",
volume = "81",
number = "4",
pages = "312",
doi = "10.1140/epjc/s10052-021-08949-5"
}
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Development and validation of HERWIG 7 tunes from CMS underlying-event measurements. in European Physical Journal C, 81(4), 312.
https://doi.org/10.1140/epjc/s10052-021-08949-5
Sirunyan A, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Development and validation of HERWIG 7 tunes from CMS underlying-event measurements. in European Physical Journal C. 2021;81(4):312.
doi:10.1140/epjc/s10052-021-08949-5 .
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Development and validation of HERWIG 7 tunes from CMS underlying-event measurements" in European Physical Journal C, 81, no. 4 (2021):312,
https://doi.org/10.1140/epjc/s10052-021-08949-5 . .
 1 1

Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas

(2021)

TY  - JOUR
AU  - Cabrera-Barjas, Gustavo
AU  - González, Cristian
AU  - Nešić, Aleksandra
AU  - Marrugo, Kelly P
AU  - Gómez, Oscar
AU  - Delattre, Cédric
AU  - Valdes, Oscar
AU  - Yin, Heng
AU  - Bravo, Gaston
AU  - Cea, Juan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9628
AB  - β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.
T2  - Marine Drugs
T1  - Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas
VL  - 19
IS  - 4
SP  - 184
DO  - 10.3390/md19040184
ER  - 
@article{
author = "Cabrera-Barjas, Gustavo and González, Cristian and Nešić, Aleksandra and Marrugo, Kelly P and Gómez, Oscar and Delattre, Cédric and Valdes, Oscar and Yin, Heng and Bravo, Gaston and Cea, Juan",
year = "2021",
abstract = "β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.",
journal = "Marine Drugs",
title = "Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas",
volume = "19",
number = "4",
pages = "184",
doi = "10.3390/md19040184"
}
Cabrera-Barjas, G., González, C., Nešić, A., Marrugo, K. P., Gómez, O., Delattre, C., Valdes, O., Yin, H., Bravo, G.,& Cea, J.. (2021). Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas. in Marine Drugs, 19(4), 184.
https://doi.org/10.3390/md19040184
Cabrera-Barjas G, González C, Nešić A, Marrugo KP, Gómez O, Delattre C, Valdes O, Yin H, Bravo G, Cea J. Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas. in Marine Drugs. 2021;19(4):184.
doi:10.3390/md19040184 .
Cabrera-Barjas, Gustavo, González, Cristian, Nešić, Aleksandra, Marrugo, Kelly P, Gómez, Oscar, Delattre, Cédric, Valdes, Oscar, Yin, Heng, Bravo, Gaston, Cea, Juan, "Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas" in Marine Drugs, 19, no. 4 (2021):184,
https://doi.org/10.3390/md19040184 . .
 2 1 1 1

Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles

(2021)

TY  - JOUR
AU  - Rakočević, Lazar
AU  - Srejić, Irina
AU  - Maksić, Aleksandar
AU  - Golubović, Jelena
AU  - Štrbac, Svetlana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9626
AB  - Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.
T2  - Catalysts
T1  - Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles
VL  - 11
IS  - 4
SP  - 481
DO  - 10.3390/catal11040481
ER  - 
@article{
author = "Rakočević, Lazar and Srejić, Irina and Maksić, Aleksandar and Golubović, Jelena and Štrbac, Svetlana",
year = "2021",
abstract = "Hydrogen evolution reaction (HER) was investigated on reduced graphene oxide (rGO)-supported Au and PdAu nanoparticles in acid solution. The graphene spread over glassy carbon (rGO/GC) was used as a support for the spontaneous deposition of Au and Pd. The resulting Au/rGO and PdAu/rGO electrodes were characterized using atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) techniques. Phase AFM images have shown that the edges of the rGO sheets were active sites for the deposition of both Au and Pd. XPS analysis revealed that the atomic percentages of both Au and PdAu nanoparticles were slightly higher than 1%. The activity of the PdAu/rGO electrode for the HER was remarkably high, with the overpotential close to zero. HER activity was stable over a 3 h testing time, with a low Tafel slope of approx. −46 mV/dec achieved after prolonged hydrogen evolution at a constant potential.",
journal = "Catalysts",
title = "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles",
volume = "11",
number = "4",
pages = "481",
doi = "10.3390/catal11040481"
}
Rakočević, L., Srejić, I., Maksić, A., Golubović, J.,& Štrbac, S.. (2021). Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts, 11(4), 481.
https://doi.org/10.3390/catal11040481
Rakočević L, Srejić I, Maksić A, Golubović J, Štrbac S. Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles. in Catalysts. 2021;11(4):481.
doi:10.3390/catal11040481 .
Rakočević, Lazar, Srejić, Irina, Maksić, Aleksandar, Golubović, Jelena, Štrbac, Svetlana, "Hydrogen Evolution on Reduced Graphene Oxide-Supported PdAu Nanoparticles" in Catalysts, 11, no. 4 (2021):481,
https://doi.org/10.3390/catal11040481 . .
 1 1