TY  - JOUR
AU  - Omerašević, Mia
AU  - Krsmanović, Miomir
AU  - Radovanović, Željko
AU  - Bučevac, Dušan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12244
AB  - Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.
T2  - Ceramics International
T1  - Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting
VL  - 50
IS  - 3 Part B
SP  - 5787
EP  - 5795
DO  - 10.1016/j.ceramint.2023.11.381
ER  - 

@article{
author = "Omerašević, Mia and Krsmanović, Miomir and Radovanović, Željko and Bučevac, Dušan",
year = "2024",
abstract = "Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.",
journal = "Ceramics International",
title = "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting",
volume = "50",
number = "3 Part B",
pages = "5787-5795",
doi = "10.1016/j.ceramint.2023.11.381"
}

Omerašević, M., Krsmanović, M., Radovanović, Ž.,& Bučevac, D.. (2024). Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International, 50(3 Part B), 5787-5795.
https://doi.org/10.1016/j.ceramint.2023.11.381

Omerašević M, Krsmanović M, Radovanović Ž, Bučevac D. Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International. 2024;50(3 Part B):5787-5795.
doi:10.1016/j.ceramint.2023.11.381 .

Omerašević, Mia, Krsmanović, Miomir, Radovanović, Željko, Bučevac, Dušan, "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting" in Ceramics International, 50, no. 3 Part B (2024):5787-5795,
https://doi.org/10.1016/j.ceramint.2023.11.381 . .

TY  - CONF
AU  - Krsmanović, Miomir
AU  - Popović, Aleksandar
AU  - Radovanović, Željko
AU  - Marković, Smilja
AU  - Omerašević, Mia
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12309
AB  - Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater
SP  - 29
EP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12309
ER  - 

@conference{
author = "Krsmanović, Miomir and Popović, Aleksandar and Radovanović, Željko and Marković, Smilja and Omerašević, Mia",
year = "2023",
abstract = "Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater",
pages = "29-29",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12309"
}

Krsmanović, M., Popović, A., Radovanović, Ž., Marković, S.,& Omerašević, M.. (2023). Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309

Krsmanović M, Popović A, Radovanović Ž, Marković S, Omerašević M. Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309 .

Krsmanović, Miomir, Popović, Aleksandar, Radovanović, Željko, Marković, Smilja, Omerašević, Mia, "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):29-29,
https://hdl.handle.net/21.15107/rcub_vinar_12309 .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Vuksanović, Marija
AU  - Jovanov, Vladislav
AU  - Radovanović, Željko
AU  - Obradov Marko
AU  - Nikolić, Nebojša D.
AU  - Vasiljević Radović, Dana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12449
AB  - Electrochemically deposited nickel coatings fromsulfamate baths without/with lab-made biosilica (SiO2) particles onthe Si(100) substrate were produced. Different galvanostaticregimes were used: direct current (DC), pulse current (PC), andpulse-reverse current (PRC) regimes. The phase structure of thesynthesized silica nanoparticles from rice husks was obtained usingXRD and FE-SEM. The MMC-Ni/SiO2 and free Ni coatings werecharacterized using FE-SEM, AFM, the micro indentation Vickerstechnique, and the drop sessile method in order to investigatestructure, roughness, microhardness, and wettability. The optimaldeposition parameters were obtained with an emphasis on theirpotential application as micro mounting coatings.
PB  - Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.
C3  - MIEL : 33rd International Conference on Microelectronics : Proceedings book
T1  - Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks
SP  - 241
EP  - 244
DO  - 10.1109/MIEL58498.2023.10315914
ER  - 

@conference{
author = "Mladenović, Ivana and Vuksanović, Marija and Jovanov, Vladislav and Radovanović, Željko and Obradov Marko and Nikolić, Nebojša D. and Vasiljević Radović, Dana",
year = "2023",
abstract = "Electrochemically deposited nickel coatings fromsulfamate baths without/with lab-made biosilica (SiO2) particles onthe Si(100) substrate were produced. Different galvanostaticregimes were used: direct current (DC), pulse current (PC), andpulse-reverse current (PRC) regimes. The phase structure of thesynthesized silica nanoparticles from rice husks was obtained usingXRD and FE-SEM. The MMC-Ni/SiO2 and free Ni coatings werecharacterized using FE-SEM, AFM, the micro indentation Vickerstechnique, and the drop sessile method in order to investigatestructure, roughness, microhardness, and wettability. The optimaldeposition parameters were obtained with an emphasis on theirpotential application as micro mounting coatings.",
publisher = "Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.",
journal = "MIEL : 33rd International Conference on Microelectronics : Proceedings book",
title = "Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks",
pages = "241-244",
doi = "10.1109/MIEL58498.2023.10315914"
}

Mladenović, I., Vuksanović, M., Jovanov, V., Radovanović, Ž., Obradov Marko, Nikolić, N. D.,& Vasiljević Radović, D.. (2023). Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks. in MIEL : 33rd International Conference on Microelectronics : Proceedings book
Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.., 241-244.
https://doi.org/10.1109/MIEL58498.2023.10315914

Mladenović I, Vuksanović M, Jovanov V, Radovanović Ž, Obradov Marko, Nikolić ND, Vasiljević Radović D. Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks. in MIEL : 33rd International Conference on Microelectronics : Proceedings book. 2023;:241-244.
doi:10.1109/MIEL58498.2023.10315914 .

Mladenović, Ivana, Vuksanović, Marija, Jovanov, Vladislav, Radovanović, Željko, Obradov Marko, Nikolić, Nebojša D., Vasiljević Radović, Dana, "Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks" in MIEL : 33rd International Conference on Microelectronics : Proceedings book (2023):241-244,
https://doi.org/10.1109/MIEL58498.2023.10315914 . .

TY  - JOUR
AU  - Pinkney, T.
AU  - Gvozdenović, M.
AU  - Jovanović, Dragana J.
AU  - Lausevic, Z.
AU  - Cvetković, D.
AU  - Maravic, M.
AU  - Milovanović, Branislav
AU  - Stojakovic, N.
AU  - Tripkovic, I.
AU  - Mihajlovic, D.
AU  - Nestorović, M.
AU  - Pecic, V.
AU  - Petrović, D.
AU  - Stanojevic, G.
AU  - Barisic, G.
AU  - Dimitrijevic, I.
AU  - Krivokapic, Z.
AU  - Markovic, V.
AU  - Popović, Milan
AU  - Aleksić, A.
AU  - Dabic, D.
AU  - Kostic, I.
AU  - Milojkovic, A.
AU  - Perunicic, V.
AU  - Lukić, Dejan
AU  - Petrović, T.
AU  - Radovanovic, D.
AU  - Radovanovic, Z.
AU  - Cuk, V. M.
AU  - Cuk, V. V.
AU  - Kenic, M.
AU  - Kovacevic, B.
AU  - Krdzic, I.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1667
AB  - Aim The anastomosis technique used following right-sided colonic resection is widely variable and may affect patient outcome. This study aimed to assess the association between leak and anastomosis technique (stapled vs handsewn). Method This was a prospective, multicentre, international audit including patients undergoing elective or emergency right hemicolectomy or ileo-caecal resection operations over a 2-month period in early 2015. The primary outcome measure was the presence of anastomotic leak within 30 days of surgery, determined using a prespecified definition. Mixed effects logistic regression models were used to assess the association between leak and anastomosis method, adjusting for patient, disease and operative cofactors, with centre included as a random-effect variable. Results This study included 3208 patients, of whom 78.4% (n = 2515) underwent surgery for malignancy and 11.7% (n = 375) underwent surgery for Crohns disease. An anastomosis was performed in 94.8% (n = 3041) of patients, which was handsewn in 38.9% (n = 1183) and stapled in 61.1% (n = 1858). Patients undergoing hand-sewn anastomosis were more likely to be emergency admissions (20.5% handsewn vs 12.9% stapled) and to undergo open surgery (54.7% handsewn vs 36.6% stapled). The overall anastomotic leak rate was 8.1% (245/3041), which was similar following handsewn (7.4%) and stapled (8.5%) techniques (P = 0.3). After adjustment for cofactors, the odds of a leak were higher for stapled anastomosis (adjusted OR = 1.43; 95% CI: 1.04-1.95; P = 0.03). Conclusion Despite being used in lower-risk patients, stapled anastomosis was associated with an increased anastomotic leak rate in this observational study. Further research is needed to define patient groups in whom a stapled anastomosis is safe.
T2  - Colorectal Disease
T1  - Relationship between method of anastomosis and anastomotic failure after right hemicolectomy and ileo-caecal resection: an international snapshot audit
VL  - 19
IS  - 8
SP  - O296
EP  - O311
DO  - 10.1111/codi.13646
ER  - 

@article{
author = "Pinkney, T. and Gvozdenović, M. and Jovanović, Dragana J. and Lausevic, Z. and Cvetković, D. and Maravic, M. and Milovanović, Branislav and Stojakovic, N. and Tripkovic, I. and Mihajlovic, D. and Nestorović, M. and Pecic, V. and Petrović, D. and Stanojevic, G. and Barisic, G. and Dimitrijevic, I. and Krivokapic, Z. and Markovic, V. and Popović, Milan and Aleksić, A. and Dabic, D. and Kostic, I. and Milojkovic, A. and Perunicic, V. and Lukić, Dejan and Petrović, T. and Radovanovic, D. and Radovanovic, Z. and Cuk, V. M. and Cuk, V. V. and Kenic, M. and Kovacevic, B. and Krdzic, I.",
year = "2017",
abstract = "Aim The anastomosis technique used following right-sided colonic resection is widely variable and may affect patient outcome. This study aimed to assess the association between leak and anastomosis technique (stapled vs handsewn). Method This was a prospective, multicentre, international audit including patients undergoing elective or emergency right hemicolectomy or ileo-caecal resection operations over a 2-month period in early 2015. The primary outcome measure was the presence of anastomotic leak within 30 days of surgery, determined using a prespecified definition. Mixed effects logistic regression models were used to assess the association between leak and anastomosis method, adjusting for patient, disease and operative cofactors, with centre included as a random-effect variable. Results This study included 3208 patients, of whom 78.4% (n = 2515) underwent surgery for malignancy and 11.7% (n = 375) underwent surgery for Crohns disease. An anastomosis was performed in 94.8% (n = 3041) of patients, which was handsewn in 38.9% (n = 1183) and stapled in 61.1% (n = 1858). Patients undergoing hand-sewn anastomosis were more likely to be emergency admissions (20.5% handsewn vs 12.9% stapled) and to undergo open surgery (54.7% handsewn vs 36.6% stapled). The overall anastomotic leak rate was 8.1% (245/3041), which was similar following handsewn (7.4%) and stapled (8.5%) techniques (P = 0.3). After adjustment for cofactors, the odds of a leak were higher for stapled anastomosis (adjusted OR = 1.43; 95% CI: 1.04-1.95; P = 0.03). Conclusion Despite being used in lower-risk patients, stapled anastomosis was associated with an increased anastomotic leak rate in this observational study. Further research is needed to define patient groups in whom a stapled anastomosis is safe.",
journal = "Colorectal Disease",
title = "Relationship between method of anastomosis and anastomotic failure after right hemicolectomy and ileo-caecal resection: an international snapshot audit",
volume = "19",
number = "8",
pages = "O296-O311",
doi = "10.1111/codi.13646"
}

Pinkney, T., Gvozdenović, M., Jovanović, D. J., Lausevic, Z., Cvetković, D., Maravic, M., Milovanović, B., Stojakovic, N., Tripkovic, I., Mihajlovic, D., Nestorović, M., Pecic, V., Petrović, D., Stanojevic, G., Barisic, G., Dimitrijevic, I., Krivokapic, Z., Markovic, V., Popović, M., Aleksić, A., Dabic, D., Kostic, I., Milojkovic, A., Perunicic, V., Lukić, D., Petrović, T., Radovanovic, D., Radovanovic, Z., Cuk, V. M., Cuk, V. V., Kenic, M., Kovacevic, B.,& Krdzic, I.. (2017). Relationship between method of anastomosis and anastomotic failure after right hemicolectomy and ileo-caecal resection: an international snapshot audit. in Colorectal Disease, 19(8), O296-O311.
https://doi.org/10.1111/codi.13646

Pinkney T, Gvozdenović M, Jovanović DJ, Lausevic Z, Cvetković D, Maravic M, Milovanović B, Stojakovic N, Tripkovic I, Mihajlovic D, Nestorović M, Pecic V, Petrović D, Stanojevic G, Barisic G, Dimitrijevic I, Krivokapic Z, Markovic V, Popović M, Aleksić A, Dabic D, Kostic I, Milojkovic A, Perunicic V, Lukić D, Petrović T, Radovanovic D, Radovanovic Z, Cuk VM, Cuk VV, Kenic M, Kovacevic B, Krdzic I. Relationship between method of anastomosis and anastomotic failure after right hemicolectomy and ileo-caecal resection: an international snapshot audit. in Colorectal Disease. 2017;19(8):O296-O311.
doi:10.1111/codi.13646 .

Pinkney, T., Gvozdenović, M., Jovanović, Dragana J., Lausevic, Z., Cvetković, D., Maravic, M., Milovanović, Branislav, Stojakovic, N., Tripkovic, I., Mihajlovic, D., Nestorović, M., Pecic, V., Petrović, D., Stanojevic, G., Barisic, G., Dimitrijevic, I., Krivokapic, Z., Markovic, V., Popović, Milan, Aleksić, A., Dabic, D., Kostic, I., Milojkovic, A., Perunicic, V., Lukić, Dejan, Petrović, T., Radovanovic, D., Radovanovic, Z., Cuk, V. M., Cuk, V. V., Kenic, M., Kovacevic, B., Krdzic, I., "Relationship between method of anastomosis and anastomotic failure after right hemicolectomy and ileo-caecal resection: an international snapshot audit" in Colorectal Disease, 19, no. 8 (2017):O296-O311,
https://doi.org/10.1111/codi.13646 . .