Kragić, Rastislav

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  • Kragić, Rastislav (3)
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Author's Bibliography

Izrada softvera i hardvera otvorenog izvora i konstrukcija pH-stat uređaja za primenu u tehnološkom procesu TEMPO-oksidacije celuloze

Milanović, Jovana; Milanović, Predrag; Kragić, Rastislav; Kostić, Mirjana

(2018)


                                            

                                            
Milanović, J., Milanović, P., Kragić, R.,& Kostić, M.. (2018). Izrada softvera i hardvera otvorenog izvora i konstrukcija pH-stat uređaja za primenu u tehnološkom procesu TEMPO-oksidacije celuloze. .
https://hdl.handle.net/21.15107/rcub_technorep_6967
Milanović J, Milanović P, Kragić R, Kostić M. Izrada softvera i hardvera otvorenog izvora i konstrukcija pH-stat uređaja za primenu u tehnološkom procesu TEMPO-oksidacije celuloze. 2018;.
https://hdl.handle.net/21.15107/rcub_technorep_6967 .
Milanović, Jovana, Milanović, Predrag, Kragić, Rastislav, Kostić, Mirjana, "Izrada softvera i hardvera otvorenog izvora i konstrukcija pH-stat uređaja za primenu u tehnološkom procesu TEMPO-oksidacije celuloze" (2018),
https://hdl.handle.net/21.15107/rcub_technorep_6967 .

"Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment

Milanović, Jovana; Milanović, Predrag; Kragić, Rastislav; Kostić, Mirjana

(Public Library Science, San Francisco, 2018)

TY  - JOUR
AU  - Milanović, Jovana
AU  - Milanović, Predrag
AU  - Kragić, Rastislav
AU  - Kostić, Mirjana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3950
AB  - In this paper, we present the construction of a reliable and inexpensive pH stat device, by using open-source "OpenPhControl" software, inexpensive hardware (a peristaltic and a syringe pump, Arduino, a step motor...), readily available laboratory devices: a pH meter, a computer, a webcam, and some 3D printed parts. We provide a methodology for the design, development and test results of each part of the device, as well as of the entire system. In addition to dosing reagents by means of a low-cost peristaltic pump, we also present carefully controlled dosing of reagents by an open-source syringe pump. The upgrading of the basic open-source syringe pump is given in terms of pump control and application of a larger syringe. In addition to the basic functions of pH stat, i.e. pH value measurement and maintenance, an improvement allowing the device to be used for potentiometric titration has been made as well. We have demonstrated the device's utility when applied for cellulose fibers oxidation with 2,2,6,6-tetramethylpiperidine-1-oxyl radical, i.e. for TEMPO-mediated oxidation. In support of this, we present the results obtained for the oxidation kinetics, the consumption of added reagent and experimental repeatability. Considering that the open-source scientific tools are available to everyone, and that researchers can construct and adjust the device according to their needs, as well as, that the total cost of the open-source pH stat device, excluding the existing laboratory equipment (pH meter, computer and glossary) was less than 150 EUR, we believe that, at a small fraction of the cost of available commercial offers, our open-source pH stat can significantly improve experimental work where the use of pH stat is necessary.
PB  - Public Library Science, San Francisco
T2  - PLoS One
T1  - "Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment
IS  - 3
VL  - 13
DO  - 10.1371/journal.pone.0193744
ER  - 
@article{
author = "Milanović, Jovana and Milanović, Predrag and Kragić, Rastislav and Kostić, Mirjana",
year = "2018",
abstract = "In this paper, we present the construction of a reliable and inexpensive pH stat device, by using open-source "OpenPhControl" software, inexpensive hardware (a peristaltic and a syringe pump, Arduino, a step motor...), readily available laboratory devices: a pH meter, a computer, a webcam, and some 3D printed parts. We provide a methodology for the design, development and test results of each part of the device, as well as of the entire system. In addition to dosing reagents by means of a low-cost peristaltic pump, we also present carefully controlled dosing of reagents by an open-source syringe pump. The upgrading of the basic open-source syringe pump is given in terms of pump control and application of a larger syringe. In addition to the basic functions of pH stat, i.e. pH value measurement and maintenance, an improvement allowing the device to be used for potentiometric titration has been made as well. We have demonstrated the device's utility when applied for cellulose fibers oxidation with 2,2,6,6-tetramethylpiperidine-1-oxyl radical, i.e. for TEMPO-mediated oxidation. In support of this, we present the results obtained for the oxidation kinetics, the consumption of added reagent and experimental repeatability. Considering that the open-source scientific tools are available to everyone, and that researchers can construct and adjust the device according to their needs, as well as, that the total cost of the open-source pH stat device, excluding the existing laboratory equipment (pH meter, computer and glossary) was less than 150 EUR, we believe that, at a small fraction of the cost of available commercial offers, our open-source pH stat can significantly improve experimental work where the use of pH stat is necessary.",
publisher = "Public Library Science, San Francisco",
journal = "PLoS One",
title = ""Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment",
number = "3",
volume = "13",
doi = "10.1371/journal.pone.0193744"
}
Milanović, J., Milanović, P., Kragić, R.,& Kostić, M.. (2018). "Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment. in PLoS One
Public Library Science, San Francisco., 13(3).
https://doi.org/10.1371/journal.pone.0193744
Milanović J, Milanović P, Kragić R, Kostić M. "Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment. in PLoS One. 2018;13(3).
doi:10.1371/journal.pone.0193744 .
Milanović, Jovana, Milanović, Predrag, Kragić, Rastislav, Kostić, Mirjana, ""Do-It-Yourself" reliable pH-stat device by using open-source software, inexpensive hardware and available laboratory equipment" in PLoS One, 13, no. 3 (2018),
https://doi.org/10.1371/journal.pone.0193744 . .
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Electricity production from biogas in Serbia assessment of emissions reduction

Cvetković, Slobodan; Kaluđerović-Radoičić, Tatjana; Kragić, Rastislav; Kijevčanin, Mirjana

(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)

TY  - JOUR
AU  - Cvetković, Slobodan
AU  - Kaluđerović-Radoičić, Tatjana
AU  - Kragić, Rastislav
AU  - Kijevčanin, Mirjana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3343
AB  - Biogas represents a promising source for the production of clean energy. The objective of this paper was to quantij5; the potential for the reduction of emissions to the environment during the production of electricity from biogas in comparison with environmental effects of the production of the same amount of electricity from fossil resources (coal from Kolubara basin and natural gas). Basis for comparison of environmental impacts in this work was the annual production of electricity in biogas plants of the total capacity of 80 MW This study has shown that the annual production of electricity from biogas power plants of 80 MW results in: substitution of up to 840 kt of coal from Kolubara basin and 123.2 million m(3) of natural gas; reduction of greenhouse gases emissions in the range of 491.16 kt to 604.97 kt CO2eq, depending on the energy efficiency of the process of electricity production from biogas; reduction of greenhouse gases emissions up to 92.37 kt CO2eq compared to the use of natural gas for electricity generation.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Electricity production from biogas in Serbia assessment of emissions reduction
EP  - 1344
IS  - 4
SP  - 1333
VL  - 20
DO  - 10.2298/TSCI150812189C
ER  - 
@article{
author = "Cvetković, Slobodan and Kaluđerović-Radoičić, Tatjana and Kragić, Rastislav and Kijevčanin, Mirjana",
year = "2016",
abstract = "Biogas represents a promising source for the production of clean energy. The objective of this paper was to quantij5; the potential for the reduction of emissions to the environment during the production of electricity from biogas in comparison with environmental effects of the production of the same amount of electricity from fossil resources (coal from Kolubara basin and natural gas). Basis for comparison of environmental impacts in this work was the annual production of electricity in biogas plants of the total capacity of 80 MW This study has shown that the annual production of electricity from biogas power plants of 80 MW results in: substitution of up to 840 kt of coal from Kolubara basin and 123.2 million m(3) of natural gas; reduction of greenhouse gases emissions in the range of 491.16 kt to 604.97 kt CO2eq, depending on the energy efficiency of the process of electricity production from biogas; reduction of greenhouse gases emissions up to 92.37 kt CO2eq compared to the use of natural gas for electricity generation.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Electricity production from biogas in Serbia assessment of emissions reduction",
pages = "1344-1333",
number = "4",
volume = "20",
doi = "10.2298/TSCI150812189C"
}
Cvetković, S., Kaluđerović-Radoičić, T., Kragić, R.,& Kijevčanin, M.. (2016). Electricity production from biogas in Serbia assessment of emissions reduction. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 20(4), 1333-1344.
https://doi.org/10.2298/TSCI150812189C
Cvetković S, Kaluđerović-Radoičić T, Kragić R, Kijevčanin M. Electricity production from biogas in Serbia assessment of emissions reduction. in Thermal Science. 2016;20(4):1333-1344.
doi:10.2298/TSCI150812189C .
Cvetković, Slobodan, Kaluđerović-Radoičić, Tatjana, Kragić, Rastislav, Kijevčanin, Mirjana, "Electricity production from biogas in Serbia assessment of emissions reduction" in Thermal Science, 20, no. 4 (2016):1333-1344,
https://doi.org/10.2298/TSCI150812189C . .
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