Miljanic, Scepan S.

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  • Miljanic, Scepan S. (14)
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Author's Bibliography

Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya

Kovacevic, Jovan; Tereesh, Mehdi Bashir; Radenković, Mirjana; Miljanic, Scepan S.

(2013)

TY  - JOUR
AU  - Kovacevic, Jovan
AU  - Tereesh, Mehdi Bashir
AU  - Radenković, Mirjana
AU  - Miljanic, Scepan S.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5537
AB  - During an investigation of the Jabal Eghei area in southern Libya and the production of geological maps on a scale of 1:250 000 (Tibesti sector, sheet Wadi Eghei NF 34-1 and NF 34-2), regional prospecting for mineral raw materials was performed. A radiometric survey of the observed targets at the sites indicated two significant uranium mineralizations in rhyolites, and some smaller ones in granites that are in close contact with rhyolites. Rhyolites are located in the central part of the investigated region. They cut through granite rocks. The first mineralization is in the central part of the rhyolite region, which is mostly composed of silificated rhyolites. The second one was discovered near the granite rhyolite contact zone, characterized by the presence of silicified breccia rocks. These findings were confirmed by laboratory measurements of more than seventy samples collected in the area, using high-resolution gamma-ray spectrometry. The concentrations of uranium in these mineralizations were found to range from approx. 50 mg kg(-1) to more than 600 mg kg(-1). The latter value is about 240 times above the Earths average. Besides uranium, these measurements have also given concentrations of thorium and potassium. Additional geochemical analysis was performed on samples taken from locations where uranium anomalies were discovered using the ICP-MS technique, in which the concentrations of more than forty elements were determined. The uranium mineralizations are accompanied by increased contents of silver (up to 17 times), arsenic (up to 8 times), molybdenum (up to 50 times), mercury (up to 9 times), and lead (up to 14 times), with regards to the Clark values. These results warrant a continued investigation of this region because of potential interest in the discovery of nuclear mineral raw materials.
T2  - Journal of the Serbian Chemical Society
T1  - Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya
VL  - 78
IS  - 5
SP  - 741
EP  - 758
DO  - 10.2298/JSC120919124K
ER  - 
@article{
author = "Kovacevic, Jovan and Tereesh, Mehdi Bashir and Radenković, Mirjana and Miljanic, Scepan S.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5537",
abstract = "During an investigation of the Jabal Eghei area in southern Libya and the production of geological maps on a scale of 1:250 000 (Tibesti sector, sheet Wadi Eghei NF 34-1 and NF 34-2), regional prospecting for mineral raw materials was performed. A radiometric survey of the observed targets at the sites indicated two significant uranium mineralizations in rhyolites, and some smaller ones in granites that are in close contact with rhyolites. Rhyolites are located in the central part of the investigated region. They cut through granite rocks. The first mineralization is in the central part of the rhyolite region, which is mostly composed of silificated rhyolites. The second one was discovered near the granite rhyolite contact zone, characterized by the presence of silicified breccia rocks. These findings were confirmed by laboratory measurements of more than seventy samples collected in the area, using high-resolution gamma-ray spectrometry. The concentrations of uranium in these mineralizations were found to range from approx. 50 mg kg(-1) to more than 600 mg kg(-1). The latter value is about 240 times above the Earths average. Besides uranium, these measurements have also given concentrations of thorium and potassium. Additional geochemical analysis was performed on samples taken from locations where uranium anomalies were discovered using the ICP-MS technique, in which the concentrations of more than forty elements were determined. The uranium mineralizations are accompanied by increased contents of silver (up to 17 times), arsenic (up to 8 times), molybdenum (up to 50 times), mercury (up to 9 times), and lead (up to 14 times), with regards to the Clark values. These results warrant a continued investigation of this region because of potential interest in the discovery of nuclear mineral raw materials.",
journal = "Journal of the Serbian Chemical Society",
title = "Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya",
volume = "78",
number = "5",
pages = "741-758",
doi = "10.2298/JSC120919124K"
}
Kovacevic, J., Tereesh, M. B., Radenković, M.,& Miljanic, S. S. (2013). Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya.
Journal of the Serbian Chemical Society, 78(5), 741-758.
https://doi.org/10.2298/JSC120919124K
Kovacevic J, Tereesh MB, Radenković M, Miljanic SS. Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya. Journal of the Serbian Chemical Society. 2013;78(5):741-758
Kovacevic Jovan, Tereesh Mehdi Bashir, Radenković Mirjana, Miljanic Scepan S., "Discovery of uranium mineralizations in the rhyolite-granite complex in the Jabal Eghei area of southern Libya" Journal of the Serbian Chemical Society, 78, no. 5 (2013):741-758,
https://doi.org/10.2298/JSC120919124K .
1
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Titanium alloy surface modification by excimer laser irradiation

Milovanović, Dubravka S.; Petrović, Suzana; Shulepov, Mikhail A.; Tarasenko, Victor F.; Radak, Bojan; Miljanic, Scepan S.; Trtica, Milan

(2013)

TY  - JOUR
AU  - Milovanović, Dubravka S.
AU  - Petrović, Suzana
AU  - Shulepov, Mikhail A.
AU  - Tarasenko, Victor F.
AU  - Radak, Bojan
AU  - Miljanic, Scepan S.
AU  - Trtica, Milan
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5662
AB  - The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm(-2) and 7.2 J cm(-2), which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Optics and Laser Technology
T1  - Titanium alloy surface modification by excimer laser irradiation
VL  - 54
SP  - 419
EP  - 427
DO  - 10.1016/j.optlastec.2013.06.025
ER  - 
@article{
author = "Milovanović, Dubravka S. and Petrović, Suzana and Shulepov, Mikhail A. and Tarasenko, Victor F. and Radak, Bojan and Miljanic, Scepan S. and Trtica, Milan",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5662",
abstract = "The main effects of the interaction of UV emitting KrCl (at 222 nm) and XeCl (at 308 nm) excimer lasers with titanium alloy Ti6Al4V are presented. Single-pulse and multi-pulse irradiations were used, with varying laser beam fluences. The resulting interactions with the surface show thermal character, and produce: (i) damages in the form of craters at higher pulse counts and fluences of 7 J cm(-2) and 7.2 J cm(-2), which are far above the damage threshold; (ii) melt pools with visible wave-like structures at periphery; (iii) resolidified droplets and cracks at periphery (at higher pulse count), (iv) increasing content of oxygen, with a domination of TiO2. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Optics and Laser Technology",
title = "Titanium alloy surface modification by excimer laser irradiation",
volume = "54",
pages = "419-427",
doi = "10.1016/j.optlastec.2013.06.025"
}
Milovanović, D. S., Petrović, S., Shulepov, M. A., Tarasenko, V. F., Radak, B., Miljanic, S. S.,& Trtica, M. (2013). Titanium alloy surface modification by excimer laser irradiation.
Optics and Laser Technology, 54, 419-427.
https://doi.org/10.1016/j.optlastec.2013.06.025
Milovanović DS, Petrović S, Shulepov MA, Tarasenko VF, Radak B, Miljanic SS, Trtica M. Titanium alloy surface modification by excimer laser irradiation. Optics and Laser Technology. 2013;54:419-427
Milovanović Dubravka S., Petrović Suzana, Shulepov Mikhail A., Tarasenko Victor F., Radak Bojan, Miljanic Scepan S., Trtica Milan, "Titanium alloy surface modification by excimer laser irradiation" Optics and Laser Technology, 54 (2013):419-427,
https://doi.org/10.1016/j.optlastec.2013.06.025 .
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Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks

Tereesh, Mehdi Bashir; Radenković, Mirjana; Kovacevic, Jovan; Miljanic, Scepan S.

(2013)

TY  - JOUR
AU  - Tereesh, Mehdi Bashir
AU  - Radenković, Mirjana
AU  - Kovacevic, Jovan
AU  - Miljanic, Scepan S.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4371
AB  - Activity concentrations of main terrestrial radioisotopes Ra-226, Th-232 and K-40 were measured in geological samples collected in Libyas Jabal Eghei area, in order to contribute to the establishment of a baseline map of the environmental radioactivity levels and to estimate the associated environmental risk to the population. Activity concentrations ranged from 22 to 5256 Bq kg(1) for Ra-226, from 11 to 221 Bq kg(1) for Th-232 and from 132.0 to 2304 Bq kg(1) for K-40. Using these results, representative risk factors were calculated: the total absorbed gamma dose rate in air (ranged from 25.5 to 2434.3 nGy h(1) with a mean value of 251.8 nGy h(1)), the radium equivalent activity (555281 Bq kg(1), with the mean value of 537 Bq kg(1)), external hazard index (0.14914.24, with a mean value of 1.451) and annual outdoor effective dose (31.32985.4 Sv, with a mean value of 308.9 Sv). Accordingly, the radiation risk is above the world average, mainly as the consequence of discovered uranium anomalies.
T2  - Radiation Protection Dosimetry
T1  - Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks
VL  - 153
IS  - 4
SP  - 475
EP  - 484
DO  - 10.1093/rpd/ncs124
ER  - 
@article{
author = "Tereesh, Mehdi Bashir and Radenković, Mirjana and Kovacevic, Jovan and Miljanic, Scepan S.",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4371",
abstract = "Activity concentrations of main terrestrial radioisotopes Ra-226, Th-232 and K-40 were measured in geological samples collected in Libyas Jabal Eghei area, in order to contribute to the establishment of a baseline map of the environmental radioactivity levels and to estimate the associated environmental risk to the population. Activity concentrations ranged from 22 to 5256 Bq kg(1) for Ra-226, from 11 to 221 Bq kg(1) for Th-232 and from 132.0 to 2304 Bq kg(1) for K-40. Using these results, representative risk factors were calculated: the total absorbed gamma dose rate in air (ranged from 25.5 to 2434.3 nGy h(1) with a mean value of 251.8 nGy h(1)), the radium equivalent activity (555281 Bq kg(1), with the mean value of 537 Bq kg(1)), external hazard index (0.14914.24, with a mean value of 1.451) and annual outdoor effective dose (31.32985.4 Sv, with a mean value of 308.9 Sv). Accordingly, the radiation risk is above the world average, mainly as the consequence of discovered uranium anomalies.",
journal = "Radiation Protection Dosimetry",
title = "Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks",
volume = "153",
number = "4",
pages = "475-484",
doi = "10.1093/rpd/ncs124"
}
Tereesh, M. B., Radenković, M., Kovacevic, J.,& Miljanic, S. S. (2013). Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks.
Radiation Protection Dosimetry, 153(4), 475-484.
https://doi.org/10.1093/rpd/ncs124
Tereesh MB, Radenković M, Kovacevic J, Miljanic SS. Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks. Radiation Protection Dosimetry. 2013;153(4):475-484
Tereesh Mehdi Bashir, Radenković Mirjana, Kovacevic Jovan, Miljanic Scepan S., "Terrestrial radioactivity of the Jabal Eghei area in southern Libya and assessment of the associated environmental risks" Radiation Protection Dosimetry, 153, no. 4 (2013):475-484,
https://doi.org/10.1093/rpd/ncs124 .
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Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts

Gavrilov, Nemanja M.; Pašti, Igor A.; Ćirić-Marjanović, Gordana N.; Nikolić, Vladimir M.; Marčeta Kaninski, Milica; Miljanic, Scepan S.; Mentus, Slavko V.

(2012)

TY  - JOUR
AU  - Gavrilov, Nemanja M.
AU  - Pašti, Igor A.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Nikolić, Vladimir M.
AU  - Marčeta Kaninski, Milica
AU  - Miljanic, Scepan S.
AU  - Mentus, Slavko V.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5016
AB  - The surface of nitrogen containing carbonized nanostructured polyaniline (Carb-nanoPANI) was modified by a chemical treatment with NaOH, H2O2 and HNO3 at room temperature. The modification was controlled by FTIR and Raman spectroscopies. The modified materials were used as an unconventional support of nanodispersed platinum electrocatalysts, built in further in a polymer electrolyte membrane fuel cell (PEMFC). The surface treatment influenced the mean platinum particle diameter, and consequently, the performance of PEMFC too. In comparison to a conventional nanodispersed Pt/C catalyst in the same cell, these electrocatalysts provided up to 34% higher power density. Apart of surface modification, a particular chemical composition of Carb-nanoPANI support itself was suggested to be responsible for the observed PEMFC performance improvement.
T2  - International Journal of Electrochemical Science
T1  - Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts
VL  - 7
IS  - 8
SP  - 6666
EP  - 6676
ER  - 
@article{
author = "Gavrilov, Nemanja M. and Pašti, Igor A. and Ćirić-Marjanović, Gordana N. and Nikolić, Vladimir M. and Marčeta Kaninski, Milica and Miljanic, Scepan S. and Mentus, Slavko V.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5016",
abstract = "The surface of nitrogen containing carbonized nanostructured polyaniline (Carb-nanoPANI) was modified by a chemical treatment with NaOH, H2O2 and HNO3 at room temperature. The modification was controlled by FTIR and Raman spectroscopies. The modified materials were used as an unconventional support of nanodispersed platinum electrocatalysts, built in further in a polymer electrolyte membrane fuel cell (PEMFC). The surface treatment influenced the mean platinum particle diameter, and consequently, the performance of PEMFC too. In comparison to a conventional nanodispersed Pt/C catalyst in the same cell, these electrocatalysts provided up to 34% higher power density. Apart of surface modification, a particular chemical composition of Carb-nanoPANI support itself was suggested to be responsible for the observed PEMFC performance improvement.",
journal = "International Journal of Electrochemical Science",
title = "Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts",
volume = "7",
number = "8",
pages = "6666-6676"
}
Gavrilov, N. M., Pašti, I. A., Ćirić-Marjanović, G. N., Nikolić, V. M., Marčeta Kaninski, M., Miljanic, S. S.,& Mentus, S. V. (2012). Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts.
International Journal of Electrochemical Science, 7(8), 6666-6676.
Gavrilov NM, Pašti IA, Ćirić-Marjanović GN, Nikolić VM, Marčeta Kaninski M, Miljanic SS, Mentus SV. Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts. International Journal of Electrochemical Science. 2012;7(8):6666-6676
Gavrilov Nemanja M., Pašti Igor A., Ćirić-Marjanović Gordana N., Nikolić Vladimir M., Marčeta Kaninski Milica, Miljanic Scepan S., Mentus Slavko V., "Nanodispersed Platinum on Chemically Treated Nanostructured Carbonized Polyaniline as a New PEMFC Catalysts" International Journal of Electrochemical Science, 7, no. 8 (2012):6666-6676
7

Diamond Synthesis By Lasers: Recent Progress

Ristic, Gordana S.; Trtica, Milan; Miljanic, Scepan S.

(2012)

TY  - JOUR
AU  - Ristic, Gordana S.
AU  - Trtica, Milan
AU  - Miljanic, Scepan S.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5011
AB  - This paper provides an up-to-date critical review of methods for diamond synthesis by lasers. A provisional classification of synthesizing methods is carried out, in order to present a varied and heterogeneous experimental work that is as clear as possible. Laser diamond CVD methods involve chemical processes in a carbon-containing system induced by specific absorption of laser radiation, while diamond PVD methods involve physical processes induced by an intense, highly-directed laser beam. Different methods involving coupled, simultaneous action of lasers and classic CVD agents are suggested and discussed as prospective approaches for diamond synthesis.
T2  - Quimica Nova
T1  - Diamond Synthesis By Lasers: Recent Progress
VL  - 35
IS  - 7
SP  - 1417
EP  - 1422
ER  - 
@article{
author = "Ristic, Gordana S. and Trtica, Milan and Miljanic, Scepan S.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5011",
abstract = "This paper provides an up-to-date critical review of methods for diamond synthesis by lasers. A provisional classification of synthesizing methods is carried out, in order to present a varied and heterogeneous experimental work that is as clear as possible. Laser diamond CVD methods involve chemical processes in a carbon-containing system induced by specific absorption of laser radiation, while diamond PVD methods involve physical processes induced by an intense, highly-directed laser beam. Different methods involving coupled, simultaneous action of lasers and classic CVD agents are suggested and discussed as prospective approaches for diamond synthesis.",
journal = "Quimica Nova",
title = "Diamond Synthesis By Lasers: Recent Progress",
volume = "35",
number = "7",
pages = "1417-1422"
}
Ristic, G. S., Trtica, M.,& Miljanic, S. S. (2012). Diamond Synthesis By Lasers: Recent Progress.
Quimica Nova, 35(7), 1417-1422.
Ristic GS, Trtica M, Miljanic SS. Diamond Synthesis By Lasers: Recent Progress. Quimica Nova. 2012;35(7):1417-1422
Ristic Gordana S., Trtica Milan, Miljanic Scepan S., "Diamond Synthesis By Lasers: Recent Progress" Quimica Nova, 35, no. 7 (2012):1417-1422
1

Diamond deposition on thin cylindrical substrates

Ristic, Gordana S.; Bogdanov, Žarko; Trtica, Milan; Miljanic, Scepan S.

(2011)

TY  - JOUR
AU  - Ristic, Gordana S.
AU  - Bogdanov, Žarko
AU  - Trtica, Milan
AU  - Miljanic, Scepan S.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4265
AB  - Diamond coatings were deposited onto different cylindrical substrates (Cu, SiC, W and Mo) by the hot filament chemical vapor deposition (CVD) method. Continuous, adhered and well-faceted crystalline coatings of diamond were obtained on Cu-wire using a special pretreatment with a mixture of diamond and metal powders as well as carefully controlled deposition at lower power. Diamond deposition on SiC-fiber gave continuous and uniform coatings when only the filament power was properly selected. Uniform, homogeneous, euchedral diamond coatings on W- and Mo-wires, attained at a higher filament power, confirmed once more the convenience of refractory metals as substrates for diamond deposition by the CVD technique. Characterization of the obtained coatings was realized using scanning electron microscopy (SEM). The obtained results are compared with the literature data. Differences are discussed with regard to the chemical nature of the substrates as well as their thermophysical characteristics.
T2  - Journal of the Serbian Chemical Society
T1  - Diamond deposition on thin cylindrical substrates
VL  - 76
IS  - 3
SP  - 407
EP  - 416
DO  - 10.2298/JSC100420030R
ER  - 
@article{
author = "Ristic, Gordana S. and Bogdanov, Žarko and Trtica, Milan and Miljanic, Scepan S.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4265",
abstract = "Diamond coatings were deposited onto different cylindrical substrates (Cu, SiC, W and Mo) by the hot filament chemical vapor deposition (CVD) method. Continuous, adhered and well-faceted crystalline coatings of diamond were obtained on Cu-wire using a special pretreatment with a mixture of diamond and metal powders as well as carefully controlled deposition at lower power. Diamond deposition on SiC-fiber gave continuous and uniform coatings when only the filament power was properly selected. Uniform, homogeneous, euchedral diamond coatings on W- and Mo-wires, attained at a higher filament power, confirmed once more the convenience of refractory metals as substrates for diamond deposition by the CVD technique. Characterization of the obtained coatings was realized using scanning electron microscopy (SEM). The obtained results are compared with the literature data. Differences are discussed with regard to the chemical nature of the substrates as well as their thermophysical characteristics.",
journal = "Journal of the Serbian Chemical Society",
title = "Diamond deposition on thin cylindrical substrates",
volume = "76",
number = "3",
pages = "407-416",
doi = "10.2298/JSC100420030R"
}
Ristic, G. S., Bogdanov, Ž., Trtica, M.,& Miljanic, S. S. (2011). Diamond deposition on thin cylindrical substrates.
Journal of the Serbian Chemical Society, 76(3), 407-416.
https://doi.org/10.2298/JSC100420030R
Ristic GS, Bogdanov Ž, Trtica M, Miljanic SS. Diamond deposition on thin cylindrical substrates. Journal of the Serbian Chemical Society. 2011;76(3):407-416
Ristic Gordana S., Bogdanov Žarko, Trtica Milan, Miljanic Scepan S., "Diamond deposition on thin cylindrical substrates" Journal of the Serbian Chemical Society, 76, no. 3 (2011):407-416,
https://doi.org/10.2298/JSC100420030R .
1
1

Non-noble metal catalyst for a future Pt free PEMFC

Tasić, Gvozden S.; Miljanic, Scepan S.; Marčeta Kaninski, Milica; Šaponjić, Đorđe; Nikolić, Vladimir M.

(2009)

TY  - JOUR
AU  - Tasić, Gvozden S.
AU  - Miljanic, Scepan S.
AU  - Marčeta Kaninski, Milica
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir M.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3832
AB  - We have investigated the possibility of developing high-performance, cost-effective and durable non-noble Co metal electrocatalyst for PEMFC. In this work we applied electrodeposition process for PEMFC electrode preparation that is very efficient and far simpler than any other investigated method. The fuel cell with electrodeposited Co as anode catalyst has shown satisfying performance level. In determining FCs operating conditions, subsequent electrochemical impedance and output power measurements were done, which enable the insight into the Co catalyst based anode behavior. Structure analysis of the electrodeposited anode layer was done by means of SEM and EDS technique. Although the Pt catalyst has higher efficiency, its cost performance ratio is significantly lower than for the Co catalyst, thus this investigation gives interesting possibilities in area of stationary fuel cell application. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Electrochemistry Communications
T1  - Non-noble metal catalyst for a future Pt free PEMFC
VL  - 11
IS  - 11
SP  - 2097
EP  - 2100
DO  - 10.1016/j.elecom.2009.09.003
ER  - 
@article{
author = "Tasić, Gvozden S. and Miljanic, Scepan S. and Marčeta Kaninski, Milica and Šaponjić, Đorđe and Nikolić, Vladimir M.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3832",
abstract = "We have investigated the possibility of developing high-performance, cost-effective and durable non-noble Co metal electrocatalyst for PEMFC. In this work we applied electrodeposition process for PEMFC electrode preparation that is very efficient and far simpler than any other investigated method. The fuel cell with electrodeposited Co as anode catalyst has shown satisfying performance level. In determining FCs operating conditions, subsequent electrochemical impedance and output power measurements were done, which enable the insight into the Co catalyst based anode behavior. Structure analysis of the electrodeposited anode layer was done by means of SEM and EDS technique. Although the Pt catalyst has higher efficiency, its cost performance ratio is significantly lower than for the Co catalyst, thus this investigation gives interesting possibilities in area of stationary fuel cell application. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Electrochemistry Communications",
title = "Non-noble metal catalyst for a future Pt free PEMFC",
volume = "11",
number = "11",
pages = "2097-2100",
doi = "10.1016/j.elecom.2009.09.003"
}
Tasić, G. S., Miljanic, S. S., Marčeta Kaninski, M., Šaponjić, Đ.,& Nikolić, V. M. (2009). Non-noble metal catalyst for a future Pt free PEMFC.
Electrochemistry Communications, 11(11), 2097-2100.
https://doi.org/10.1016/j.elecom.2009.09.003
Tasić GS, Miljanic SS, Marčeta Kaninski M, Šaponjić Đ, Nikolić VM. Non-noble metal catalyst for a future Pt free PEMFC. Electrochemistry Communications. 2009;11(11):2097-2100
Tasić Gvozden S., Miljanic Scepan S., Marčeta Kaninski Milica, Šaponjić Đorđe, Nikolić Vladimir M., "Non-noble metal catalyst for a future Pt free PEMFC" Electrochemistry Communications, 11, no. 11 (2009):2097-2100,
https://doi.org/10.1016/j.elecom.2009.09.003 .
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Laser reflection spot as a pattern in a diamond coating - a microscopic study

Ristic, Gordana S.; Trtica, Milan; Bogdanov, Žarko; Rakočević, Zlatko Lj.; Miljanic, Scepan S.

(2009)

TY  - JOUR
AU  - Ristic, Gordana S.
AU  - Trtica, Milan
AU  - Bogdanov, Žarko
AU  - Rakočević, Zlatko Lj.
AU  - Miljanic, Scepan S.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3758
AB  - Diamond coatings were deposited by the synchronous and coupled action of a hot filament CVD method and a pulsed CO(2) laser in spectro-absorbing and spectro-non-absorbing diamond precursor atmospheres. The obtained coatings were structured/patterned, i.e., they were comprised of uncovered, bare locations. An extra effect observed only in the spectro-active diamond precursor atmosphere was the creation of another laser spot in the coating - a reflection spot. In order to establish the practical usability of the latter one, extensive microscopic investigations were performed with consideration of the morphology changes in the spot of the direct laser beam. Normal incidence SEM images of this spot showed a smooth surface, without any pulse radiation damage. AFM imaging revealed the actual surface condition and gave precise data on the surface characteristics.
T2  - Journal of the Serbian Chemical Society
T1  - Laser reflection spot as a pattern in a diamond coating - a microscopic study
VL  - 74
IS  - 7
SP  - 773
EP  - 779
DO  - 10.2298/JSC0907773R
ER  - 
@article{
author = "Ristic, Gordana S. and Trtica, Milan and Bogdanov, Žarko and Rakočević, Zlatko Lj. and Miljanic, Scepan S.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3758",
abstract = "Diamond coatings were deposited by the synchronous and coupled action of a hot filament CVD method and a pulsed CO(2) laser in spectro-absorbing and spectro-non-absorbing diamond precursor atmospheres. The obtained coatings were structured/patterned, i.e., they were comprised of uncovered, bare locations. An extra effect observed only in the spectro-active diamond precursor atmosphere was the creation of another laser spot in the coating - a reflection spot. In order to establish the practical usability of the latter one, extensive microscopic investigations were performed with consideration of the morphology changes in the spot of the direct laser beam. Normal incidence SEM images of this spot showed a smooth surface, without any pulse radiation damage. AFM imaging revealed the actual surface condition and gave precise data on the surface characteristics.",
journal = "Journal of the Serbian Chemical Society",
title = "Laser reflection spot as a pattern in a diamond coating - a microscopic study",
volume = "74",
number = "7",
pages = "773-779",
doi = "10.2298/JSC0907773R"
}
Ristic, G. S., Trtica, M., Bogdanov, Ž., Rakočević, Z. Lj.,& Miljanic, S. S. (2009). Laser reflection spot as a pattern in a diamond coating - a microscopic study.
Journal of the Serbian Chemical Society, 74(7), 773-779.
https://doi.org/10.2298/JSC0907773R
Ristic GS, Trtica M, Bogdanov Ž, Rakočević ZL, Miljanic SS. Laser reflection spot as a pattern in a diamond coating - a microscopic study. Journal of the Serbian Chemical Society. 2009;74(7):773-779
Ristic Gordana S., Trtica Milan, Bogdanov Žarko, Rakočević Zlatko Lj., Miljanic Scepan S., "Laser reflection spot as a pattern in a diamond coating - a microscopic study" Journal of the Serbian Chemical Society, 74, no. 7 (2009):773-779,
https://doi.org/10.2298/JSC0907773R .
1
1

Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks

Radenković, Mirjana; Alshikh, Saeed Masaud; Andrić, Velibor; Miljanic, Scepan S.

(2009)

TY  - JOUR
AU  - Radenković, Mirjana
AU  - Alshikh, Saeed Masaud
AU  - Andrić, Velibor
AU  - Miljanic, Scepan S.
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3703
AB  - The radiological risk due to the presence of natural and man-made radionuclides in beach sands from several renowned seaside and riverbank public beaches was estimated in this study. The exposure levels to terrestrial radiation of the beaches were determined, as well as hazards due to human use of the analyzed sands in industry and in building constructions. Specific radionuclides concentrations in the sand samples were determined by standard gamma-spectrometry. The corresponding radiation hazards arising due to the use of sand as a building material were estimated by three different radiological hazard indices. The total absorbed gamma dose rate in the air was determined and the corresponding annual effective dose outdoors was estimated. The obtained data are relevant both from human health and environmental monitoring aspects.
T2  - Journal of the Serbian Chemical Society
T1  - Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks
VL  - 74
IS  - 4
SP  - 461
EP  - 470
DO  - 10.2298/JSC0904461R
ER  - 
@article{
author = "Radenković, Mirjana and Alshikh, Saeed Masaud and Andrić, Velibor and Miljanic, Scepan S.",
year = "2009",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3703",
abstract = "The radiological risk due to the presence of natural and man-made radionuclides in beach sands from several renowned seaside and riverbank public beaches was estimated in this study. The exposure levels to terrestrial radiation of the beaches were determined, as well as hazards due to human use of the analyzed sands in industry and in building constructions. Specific radionuclides concentrations in the sand samples were determined by standard gamma-spectrometry. The corresponding radiation hazards arising due to the use of sand as a building material were estimated by three different radiological hazard indices. The total absorbed gamma dose rate in the air was determined and the corresponding annual effective dose outdoors was estimated. The obtained data are relevant both from human health and environmental monitoring aspects.",
journal = "Journal of the Serbian Chemical Society",
title = "Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks",
volume = "74",
number = "4",
pages = "461-470",
doi = "10.2298/JSC0904461R"
}
Radenković, M., Alshikh, S. M., Andrić, V.,& Miljanic, S. S. (2009). Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks.
Journal of the Serbian Chemical Society, 74(4), 461-470.
https://doi.org/10.2298/JSC0904461R
Radenković M, Alshikh SM, Andrić V, Miljanic SS. Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks. Journal of the Serbian Chemical Society. 2009;74(4):461-470
Radenković Mirjana, Alshikh Saeed Masaud, Andrić Velibor, Miljanic Scepan S., "Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks" Journal of the Serbian Chemical Society, 74, no. 4 (2009):461-470,
https://doi.org/10.2298/JSC0904461R .
24
22
23

Electrochemical H/D isotope effects in PEM fuel cell

Marčeta Kaninski, Milica; Nikolić, Vladimir M.; Maksić, Aleksandar; Tasić, Gvozden S.; Miljanic, Scepan S.

(2008)

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Nikolić, Vladimir M.
AU  - Maksić, Aleksandar
AU  - Tasić, Gvozden S.
AU  - Miljanic, Scepan S.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3548
AB  - An electrochemical H/D separation system consisting of electrolyzer and PEM fuel cell has been proposed. Isotope separation could be important as a part of the energy saving process in an energy-hydrogen-energy cycle. Any transfer of energy into hydrogen or vice versa induces change of the H/D isotope ratio, which can be considered, as a method to produce heavy water as by-product. In this way, the separation efficiency can contribute to the overall efficiency of the cycle. (c) 2008 Elsevier B.V. All rights reserved.
T2  - Electrochemistry Communications
T1  - Electrochemical H/D isotope effects in PEM fuel cell
VL  - 10
IS  - 10
SP  - 1463
EP  - 1466
DO  - 10.1016/j.elecom.2008.07.031
ER  - 
@article{
author = "Marčeta Kaninski, Milica and Nikolić, Vladimir M. and Maksić, Aleksandar and Tasić, Gvozden S. and Miljanic, Scepan S.",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3548",
abstract = "An electrochemical H/D separation system consisting of electrolyzer and PEM fuel cell has been proposed. Isotope separation could be important as a part of the energy saving process in an energy-hydrogen-energy cycle. Any transfer of energy into hydrogen or vice versa induces change of the H/D isotope ratio, which can be considered, as a method to produce heavy water as by-product. In this way, the separation efficiency can contribute to the overall efficiency of the cycle. (c) 2008 Elsevier B.V. All rights reserved.",
journal = "Electrochemistry Communications",
title = "Electrochemical H/D isotope effects in PEM fuel cell",
volume = "10",
number = "10",
pages = "1463-1466",
doi = "10.1016/j.elecom.2008.07.031"
}
Marčeta Kaninski, M., Nikolić, V. M., Maksić, A., Tasić, G. S.,& Miljanic, S. S. (2008). Electrochemical H/D isotope effects in PEM fuel cell.
Electrochemistry Communications, 10(10), 1463-1466.
https://doi.org/10.1016/j.elecom.2008.07.031
Marčeta Kaninski M, Nikolić VM, Maksić A, Tasić GS, Miljanic SS. Electrochemical H/D isotope effects in PEM fuel cell. Electrochemistry Communications. 2008;10(10):1463-1466
Marčeta Kaninski Milica, Nikolić Vladimir M., Maksić Aleksandar, Tasić Gvozden S., Miljanic Scepan S., "Electrochemical H/D isotope effects in PEM fuel cell" Electrochemistry Communications, 10, no. 10 (2008):1463-1466,
https://doi.org/10.1016/j.elecom.2008.07.031 .
9
10
10

Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions

Cuculovic, Ana A.; Pavlović, Mirjana S.; Veselinović, Dragan S.; Miljanic, Scepan S.

(2008)

TY  - JOUR
AU  - Cuculovic, Ana A.
AU  - Pavlović, Mirjana S.
AU  - Veselinović, Dragan S.
AU  - Miljanic, Scepan S.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3434
AB  - Extraction of metals (K, Al, Ca, Mg, Fe, Cu, Ba, Zn, Mn and Sr) from dry Cetraria islandica (L.) Ach. lichen was performed using solutions similar to acid rain (solution A - H2SO4-HNO3-(NH4)(2)SO4 and solution B - H2SO4-HNO3-(NH4)(2)SO4-NH4NO3). The pH values of these solutions were 2.00, 2.58, 2.87, 3.28, and 3.75. Five consecutive extractions were performed with each solution. In all solutions, the extracted metal content, except Cu and Ca, was the highest in the first extract. The highest percentage of the metals desorbed in the first extraction was obtained using solutions with low pH values, 2.00, 2.58, and 2.87. The iowest percentage in the first extraction was obtained using solutions with pH 3.28 and pH 3.75, indicating influence of the H+ ion on the extraction. According to the results obtained, the investigated metals form two groups. The first group includes K, Al, Ca, Mg, and Fe. They were extracted in each of the five extractions at each of the pH values. The second group includes Ba, Zn, Mn, Cu, and Sr, which were not all extracted at each pH value. The first group yielded three types of extraction curves when the logarithms of extracted metal amounts were plotted as a function of the number of successive extractions. These effects indicate that three different positions (centres) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues).
T2  - Journal of the Serbian Chemical Society
T1  - Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions
VL  - 73
IS  - 4
SP  - 405
EP  - 413
DO  - 10.2298/JSCO804405C
ER  - 
@article{
author = "Cuculovic, Ana A. and Pavlović, Mirjana S. and Veselinović, Dragan S. and Miljanic, Scepan S.",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3434",
abstract = "Extraction of metals (K, Al, Ca, Mg, Fe, Cu, Ba, Zn, Mn and Sr) from dry Cetraria islandica (L.) Ach. lichen was performed using solutions similar to acid rain (solution A - H2SO4-HNO3-(NH4)(2)SO4 and solution B - H2SO4-HNO3-(NH4)(2)SO4-NH4NO3). The pH values of these solutions were 2.00, 2.58, 2.87, 3.28, and 3.75. Five consecutive extractions were performed with each solution. In all solutions, the extracted metal content, except Cu and Ca, was the highest in the first extract. The highest percentage of the metals desorbed in the first extraction was obtained using solutions with low pH values, 2.00, 2.58, and 2.87. The iowest percentage in the first extraction was obtained using solutions with pH 3.28 and pH 3.75, indicating influence of the H+ ion on the extraction. According to the results obtained, the investigated metals form two groups. The first group includes K, Al, Ca, Mg, and Fe. They were extracted in each of the five extractions at each of the pH values. The second group includes Ba, Zn, Mn, Cu, and Sr, which were not all extracted at each pH value. The first group yielded three types of extraction curves when the logarithms of extracted metal amounts were plotted as a function of the number of successive extractions. These effects indicate that three different positions (centres) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues).",
journal = "Journal of the Serbian Chemical Society",
title = "Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions",
volume = "73",
number = "4",
pages = "405-413",
doi = "10.2298/JSCO804405C"
}
Cuculovic, A. A., Pavlović, M. S., Veselinović, D. S.,& Miljanic, S. S. (2008). Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions.
Journal of the Serbian Chemical Society, 73(4), 405-413.
https://doi.org/10.2298/JSCO804405C
Cuculovic AA, Pavlović MS, Veselinović DS, Miljanic SS. Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions. Journal of the Serbian Chemical Society. 2008;73(4):405-413
Cuculovic Ana A., Pavlović Mirjana S., Veselinović Dragan S., Miljanic Scepan S., "Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions" Journal of the Serbian Chemical Society, 73, no. 4 (2008):405-413,
https://doi.org/10.2298/JSCO804405C .
8

On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells

Nikolić, Vladimir M.; Krklješ, Aleksandra N.; Kačarević-Popović, Zorica M.; Laušević, Zoran; Miljanic, Scepan S.

(2007)

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Krklješ, Aleksandra N.
AU  - Kačarević-Popović, Zorica M.
AU  - Laušević, Zoran
AU  - Miljanic, Scepan S.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3331
AB  - There is growing interest in the use of fuel cells (FC) with hydrogen as the main fuel for stationary, mobile, and transportation applications. In the FC concept membranes play increasingly important roles. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as the most promising fuel cell technology for a wide range of applications due to the stable operation, the high energy generation yield and the simplicity of the system. In this work, we develop different types of membranes based on poly(vinyl alcohol) (PVA). PVA is a water-soluble polymer that is used in practical applications because of its easy preparation, excellent chemical resistance, thermal and mechanical properties. Crosslinking of the PVA was performed by gamma irradiation since radiation chemistry is found to be a very effective method for constructing three-dimensional polymeric networks. The samples prepared in this way were then immersed in the alkaline solution over a certain period of time to turn them into conductive membranes. Ionic conductivity of the PVA hydrogels, was then measured as a function of concentration of KOH solutions and temperature. Cyclic voltammetry of these PVA hydrogel electrolytes was performed to determine the width of the electrochemical stability window. We examined these membranes impregnated with saturated 6 M KOH electrolyte as polymer membrane for fuel cells application. Our experiments showed that PEMFCs with PVA and Nafion(R) membranes had similar polarization curves, under same conditions. Furthermore, PVA membranes proved to be stable during the real cell tests. This study offers a possibility for more earnest approach to the use of PVA membranes for fuel cell applications. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Electrochemistry Communications
T1  - On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells
VL  - 9
IS  - 11
SP  - 2661
EP  - 2665
DO  - 10.1016/j.elecom.2007.08.022
ER  - 
@article{
author = "Nikolić, Vladimir M. and Krklješ, Aleksandra N. and Kačarević-Popović, Zorica M. and Laušević, Zoran and Miljanic, Scepan S.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3331",
abstract = "There is growing interest in the use of fuel cells (FC) with hydrogen as the main fuel for stationary, mobile, and transportation applications. In the FC concept membranes play increasingly important roles. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as the most promising fuel cell technology for a wide range of applications due to the stable operation, the high energy generation yield and the simplicity of the system. In this work, we develop different types of membranes based on poly(vinyl alcohol) (PVA). PVA is a water-soluble polymer that is used in practical applications because of its easy preparation, excellent chemical resistance, thermal and mechanical properties. Crosslinking of the PVA was performed by gamma irradiation since radiation chemistry is found to be a very effective method for constructing three-dimensional polymeric networks. The samples prepared in this way were then immersed in the alkaline solution over a certain period of time to turn them into conductive membranes. Ionic conductivity of the PVA hydrogels, was then measured as a function of concentration of KOH solutions and temperature. Cyclic voltammetry of these PVA hydrogel electrolytes was performed to determine the width of the electrochemical stability window. We examined these membranes impregnated with saturated 6 M KOH electrolyte as polymer membrane for fuel cells application. Our experiments showed that PEMFCs with PVA and Nafion(R) membranes had similar polarization curves, under same conditions. Furthermore, PVA membranes proved to be stable during the real cell tests. This study offers a possibility for more earnest approach to the use of PVA membranes for fuel cell applications. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Electrochemistry Communications",
title = "On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells",
volume = "9",
number = "11",
pages = "2661-2665",
doi = "10.1016/j.elecom.2007.08.022"
}
Nikolić, V. M., Krklješ, A. N., Kačarević-Popović, Z. M., Laušević, Z.,& Miljanic, S. S. (2007). On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells.
Electrochemistry Communications, 9(11), 2661-2665.
https://doi.org/10.1016/j.elecom.2007.08.022
Nikolić VM, Krklješ AN, Kačarević-Popović ZM, Laušević Z, Miljanic SS. On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells. Electrochemistry Communications. 2007;9(11):2661-2665
Nikolić Vladimir M., Krklješ Aleksandra N., Kačarević-Popović Zorica M., Laušević Zoran, Miljanic Scepan S., "On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells" Electrochemistry Communications, 9, no. 11 (2007):2661-2665,
https://doi.org/10.1016/j.elecom.2007.08.022 .
31
24
27

Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization

Joksić, Jasminka D.; Radenković, Mirjana; Miljanic, Scepan S.

(2007)

TY  - JOUR
AU  - Joksić, Jasminka D.
AU  - Radenković, Mirjana
AU  - Miljanic, Scepan S.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3222
AB  - In this work, a study of the radioactive content of some spring and bottled mineral waters originating fi-om metamorphic rock areas was carried out. A high content of radium isotopes (Ra-226, Ra-228), was found by radiometric analysis in the spring waters: Studenica (Ra-226: 289 mBq/L), Cibutkovica (Ra-226: 92, 4 mBq/L, Ra-228: 610 mBq/L), and Crni Guber (Ra-226: 120 mBq/L, Ra-228: 1170 mBq/L). On the other hand, the radiochemical results showed a higher concentration of U-238 in the bottled mineral water samples (dissolved uranium concentrations were from 0.21 mBq[L, for Kopaonik to 71.5 mBq/L fo Skadarska) than in the spring water samples (dissolved uranium concentrations were very low approximate to 10 mBq/L). The concentrations of all the present naturally occuring radionuclides: U-238, U-234, Th-232, Th-230, Th-228, Ra-228 and Ra-226 were determined by alpha/gamma spectrometric analysis. The activity ratios U-234/U-238, Ra-226/Th-230 and Th-228/Th-232, Ra-228/Th-228 were calculated and are discussed as an indication of the radioactive disequilibrium in bothe the U-238 and Th-232 radioactive series. The high contents of radium isotopes with respect to the equilibrium values expected from the respective parents Th-232/(Th-232 series) and Th-230 (U-238 series) found in the spring water samples is the main evidence for the existence of significant radioactive disequilibrium in both the radioactive series.
T2  - Journal of the Serbian Chemical Society
T1  - Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization
VL  - 72
IS  - 6
SP  - 621
EP  - 628
DO  - 10.2298/JSC0706621J
ER  - 
@article{
author = "Joksić, Jasminka D. and Radenković, Mirjana and Miljanic, Scepan S.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3222",
abstract = "In this work, a study of the radioactive content of some spring and bottled mineral waters originating fi-om metamorphic rock areas was carried out. A high content of radium isotopes (Ra-226, Ra-228), was found by radiometric analysis in the spring waters: Studenica (Ra-226: 289 mBq/L), Cibutkovica (Ra-226: 92, 4 mBq/L, Ra-228: 610 mBq/L), and Crni Guber (Ra-226: 120 mBq/L, Ra-228: 1170 mBq/L). On the other hand, the radiochemical results showed a higher concentration of U-238 in the bottled mineral water samples (dissolved uranium concentrations were from 0.21 mBq[L, for Kopaonik to 71.5 mBq/L fo Skadarska) than in the spring water samples (dissolved uranium concentrations were very low approximate to 10 mBq/L). The concentrations of all the present naturally occuring radionuclides: U-238, U-234, Th-232, Th-230, Th-228, Ra-228 and Ra-226 were determined by alpha/gamma spectrometric analysis. The activity ratios U-234/U-238, Ra-226/Th-230 and Th-228/Th-232, Ra-228/Th-228 were calculated and are discussed as an indication of the radioactive disequilibrium in bothe the U-238 and Th-232 radioactive series. The high contents of radium isotopes with respect to the equilibrium values expected from the respective parents Th-232/(Th-232 series) and Th-230 (U-238 series) found in the spring water samples is the main evidence for the existence of significant radioactive disequilibrium in both the radioactive series.",
journal = "Journal of the Serbian Chemical Society",
title = "Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization",
volume = "72",
number = "6",
pages = "621-628",
doi = "10.2298/JSC0706621J"
}
Joksić, J. D., Radenković, M.,& Miljanic, S. S. (2007). Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization.
Journal of the Serbian Chemical Society, 72(6), 621-628.
https://doi.org/10.2298/JSC0706621J
Joksić JD, Radenković M, Miljanic SS. Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization. Journal of the Serbian Chemical Society. 2007;72(6):621-628
Joksić Jasminka D., Radenković Mirjana, Miljanic Scepan S., "Natural radioactivity of some spring and bottled mineral waters from several central Balkan sites, as a way of their characterization" Journal of the Serbian Chemical Society, 72, no. 6 (2007):621-628,
https://doi.org/10.2298/JSC0706621J .
11
14
15

Diamond coating deposition by synergy of thermal and laser methods - A problem revisited

Ristic, Gordana S.; Trtica, Milan; Bogdanov, Žarko; Romčević, Nebojša Ž.; Miljanic, Scepan S.

(2007)

TY  - JOUR
AU  - Ristic, Gordana S.
AU  - Trtica, Milan
AU  - Bogdanov, Žarko
AU  - Romčević, Nebojša Ž.
AU  - Miljanic, Scepan S.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3190
AB  - Diamond coatings were deposited by synergy of the hot filament CVD method and the pulse TEA CO2 laser, in spectroactive and spectroinactive diamond precursor atmospheres. Resulting diamond coatings are interpreted relying on evidence of scanning electron microscopy as well as microRaman spectroscopy. Thermal synergy component (hot filament) possesses an activating agent for diamond deposition, and contributes significantly to quality and extent of diamond deposition. Laser synergy component comprises a solid surface modification as well as the spectroactive gaseous atmosphere modification. Surface modification consists in changes of the diamond coating being deposited and, at the same time, in changes of the substrate surface structure. Laser modification of the spectroactive diamond precursor atmosphere means specific consumption of the precursor, which enables to skip the deposition on a defined substrate location. The resulting process of diamond coating elimination from certain, desired locations using the CO2 laser might contribute to tailoring diamond coatings for particular applications. Additionally, the substrate laser modification could be optimized by choice of a proper spectroactive precursor concentration, or by a laser radiation multiple pass through an absorbing medium. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Diamond coating deposition by synergy of thermal and laser methods - A problem revisited
VL  - 253
IS  - 12
SP  - 5233
EP  - 5239
DO  - 10.1016/j.apsusc.2006.11.045
ER  - 
@article{
author = "Ristic, Gordana S. and Trtica, Milan and Bogdanov, Žarko and Romčević, Nebojša Ž. and Miljanic, Scepan S.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3190",
abstract = "Diamond coatings were deposited by synergy of the hot filament CVD method and the pulse TEA CO2 laser, in spectroactive and spectroinactive diamond precursor atmospheres. Resulting diamond coatings are interpreted relying on evidence of scanning electron microscopy as well as microRaman spectroscopy. Thermal synergy component (hot filament) possesses an activating agent for diamond deposition, and contributes significantly to quality and extent of diamond deposition. Laser synergy component comprises a solid surface modification as well as the spectroactive gaseous atmosphere modification. Surface modification consists in changes of the diamond coating being deposited and, at the same time, in changes of the substrate surface structure. Laser modification of the spectroactive diamond precursor atmosphere means specific consumption of the precursor, which enables to skip the deposition on a defined substrate location. The resulting process of diamond coating elimination from certain, desired locations using the CO2 laser might contribute to tailoring diamond coatings for particular applications. Additionally, the substrate laser modification could be optimized by choice of a proper spectroactive precursor concentration, or by a laser radiation multiple pass through an absorbing medium. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Diamond coating deposition by synergy of thermal and laser methods - A problem revisited",
volume = "253",
number = "12",
pages = "5233-5239",
doi = "10.1016/j.apsusc.2006.11.045"
}
Ristic, G. S., Trtica, M., Bogdanov, Ž., Romčević, N. Ž.,& Miljanic, S. S. (2007). Diamond coating deposition by synergy of thermal and laser methods - A problem revisited.
Applied Surface Science, 253(12), 5233-5239.
https://doi.org/10.1016/j.apsusc.2006.11.045
Ristic GS, Trtica M, Bogdanov Ž, Romčević NŽ, Miljanic SS. Diamond coating deposition by synergy of thermal and laser methods - A problem revisited. Applied Surface Science. 2007;253(12):5233-5239
Ristic Gordana S., Trtica Milan, Bogdanov Žarko, Romčević Nebojša Ž., Miljanic Scepan S., "Diamond coating deposition by synergy of thermal and laser methods - A problem revisited" Applied Surface Science, 253, no. 12 (2007):5233-5239,
https://doi.org/10.1016/j.apsusc.2006.11.045 .
1
2
2