Претрага
1297 items
-
Determination of oxygen surface groups on biochars using Boehm-titration method
Krstić D. Aleksandar, Lolić Đ. Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović J. Snežana, Nedić P. Zoran, Pavelkić M. Vesna (2015)Krstić D. Aleksandar, Lolić Đ. Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović J. Snežana, Nedić P. Zoran, Pavelkić M. Vesna. "Determination of oxygen surface groups on biochars using Boehm-titration method" in 52. savetovanje Srpskog hemijskog društva, Belgrade, Serbia (2015): 16
-
Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...... 2023-06-13 17:28:30 Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić Дигитални репозиторијум Рударско-геолошког ...
... [ДР РГФ] Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija | Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić | 52. savetovanja Srpskog hemijskog društva | ...
... bg.ac.rs Odredivanje sadrzaja kiselih funkcionalnih grupa na povréini biougljeva primenom Boehm-ovih titracija Aleksandar D. Krstié, Aleksandar D. Lolié, Marija A. li, Aleksandar M. Mijatovi¢*, ‘Snezana J. Zlatanovi¢'*, Zoran P. Nedi¢***, Vesna M. Pavelki¢**** Hemijski fakultet, Univerzitet u ...Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanja Srpskog hemijskog društva, Srpsko hemijsko društvo (2015)
-
Petrologija kvarcita Kaone i njihov značaj kao mineralne sirovine
Krstić Slađana D. (2016)Krstić Slađana D.. Petrologija kvarcita Kaone i njihov značaj kao mineralne sirovine, Beograd:Rudarsko-geološki fakultet, 2016
-
Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
-
Uniaxial compressive strength test before and after standard fire test on rock mass
Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)... test on rock mass Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Uniaxial compressive ...
... test on rock mass | Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović | Fifth symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 23-25. 06. 2022 | ...
... Marija Krstićc, Aleksandar Erićd, Radovan Gospavića , Snežana Ilićc , Aleksandar Kijanovićc a Faculty of Civil Engineering, University of Belgrade, Serbia b Faculty of Mining and Geology, University of Belgrade, Serbia c Institute for testing materials IMS, Belgrade, Serbia d Unogradnja ...Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović. "Uniaxial compressive strength test before and after standard fire test on rock mass" in Fifth symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 23-25. 06. 2022, Macedonian Association for Geotechnics (2022)
-
Energy Resources in the Republic of Serbia: Development Policy
Jovančić Predrag, Kolonja Božo, Ignjatović Dragan, Tanasijević Miloš, Madžarević Aleksandar, Krstić Vojislav (2014)Jovančić Predrag, Kolonja Božo, Ignjatović Dragan, Tanasijević Miloš, Madžarević Aleksandar, Krstić Vojislav. "Energy Resources in the Republic of Serbia: Development Policy" in Journal of Energy Sources, Part B: Economics, Planning and Policy, :Taylor & Francis (2014). https://doi.org/DOI: 10.1080/15567249.2014.896
-
Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... Sanja Krstić, Vladimir Dodevski, Milena Rosić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders | Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir ...
... and Metallurgy, University of Belgrade, Serbia Dr. Gordana Bakić, Faculty of Mechanical Engineering, University of Belgrade, Serbia Dr. Aleksandar Maslarević, Faculty of Mechanical Engineering, University of Belgrade, Serbia Dr. Zvezdana Baščarević, Institute for Multidisciplinary Research ...
... H. Nakamura, T. Siegrist, A.P. Ramires, Nafture Mater., 7 (2008) 291. 2. J. Hellsvik, M. Balestieri, T. Usui, A. Stroppa, A. Bergman, L. Berqvist, D. Pabhakaran, O. Eriksson, S. Picozzi, T. Kimura, J. Lorenzana, Phys. Rev. B, 90 (2014) 014437. 122 ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)
-
Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Krstić Aleksandar, Lolić Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović Snežana, Nedić Zoran, Pavelkić Vesna (2015)Krstić Aleksandar, Lolić Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović Snežana, Nedić Zoran, Pavelkić Vesna. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanje Srpskog hemijskog društva, мaj 2015, Novi Sad, Srbija, Abstract AH P 5: Srpsko hemijsko društvo (2015): 16
-
Neogene geodynamics in the light of 3-D visualization – an example along the Sava River (Belgrade)
Ganić Meri, Knežević Slobodan, Rundić Ljupko, Milutinović Aleksandar, Ganić Aleksandar. "Neogene geodynamics in the light of 3-D visualization – an example along the Sava River (Belgrade)" in Proceedings of 17th Meeting of the Association of European Geological Societies 1, Beograd:Serbian geological Society (2011): 157-159
-
Kinetics and the mechanism of the supstitution reactions of some Pt(II) and Pd(II) complexes
Bogojeski Jovana, Mijatović Aleksandar, Đurović Mirjana, Petrović Biljana, Bugarčić D. Živadin (2011)Bogojeski Jovana, Mijatović Aleksandar, Đurović Mirjana, Petrović Biljana, Bugarčić D. Živadin. "Kinetics and the mechanism of the supstitution reactions of some Pt(II) and Pd(II) complexes" in First EuCheMS Inorganic Chemistry Conference, University of Manchester, UK (2011): 11-14
-
Pregled povreda u rudnicima Javnog Preduzeća za Podzemnu Eksploataciju Uglja, u periodu 2011-2015.
Milisavljević Vladimir, Milinković D., Cvjetić Aleksandar. "Pregled povreda u rudnicima Javnog Preduzeća za Podzemnu Eksploataciju Uglja, u periodu 2011-2015." in Zbornik radova sa 5. naučno-stručnog skupa Podzemna eksploatacija mineralnih sirovina 2017, Beograd, 8. decembar 2017., Beograd.:University of Belgrade, Faculty of Mining and Geology (2017): 51-62
-
NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands
Mijatović Aleksandar, Šmit Biljana, Rilak Ana, Petrović Biljana , Čanović Dragan, Bugarčić D. Živadin (2013)Mijatović Aleksandar, Šmit Biljana, Rilak Ana, Petrović Biljana , Čanović Dragan, Bugarčić D. Živadin. "NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands" in Inorganica Chimica Acta 394, Amsterdam, Netherlands : Elsevier BV (2013): 552-557. https://doi.org/10.1016/j.ica.2012.09.016
-
Heterogeneity and Disorder in Ti1-xFeyO 2- d nanocrystal rutile-based flowerlike aggregates: Detection of anatase
Kremenović Aleksandar, Antić Bratislav, Blanuša Jovan, Čomor Mirjana, Colomban Philippe, Mazerolles Leo, Božin Emil S. (2011)Kremenović Aleksandar, Antić Bratislav, Blanuša Jovan, Čomor Mirjana, Colomban Philippe, Mazerolles Leo, Božin Emil S.. "Heterogeneity and Disorder in Ti1-xFeyO 2- d nanocrystal rutile-based flowerlike aggregates: Detection of anatase" in Journal of Physical Chemistry C 11 no. 115, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Chemical Society (2011): 4395-4403. https://doi.org/10.1021/jp109437b
-
Visokoprovodna d-Bi2O3 faza dopirana vanadijumom
Dapčević Aleksandra, Poleti Dejan, Karanović Ljiljana, Rogan Jelena, Radojković Aleksandar. "Visokoprovodna d-Bi2O3 faza dopirana vanadijumom" in XL Savetovanje Srpskog hemijskog društva, Beograd, Srbija:Srpsko hemijsko društvo (2012): 64-64
-
Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”
... differences are to be calculated as follows: 2222 2 2 2 2 lizdH H H H H d z i l σ σ σ σ σΔ ∂Δ ∂Δ ∂Δ ∂Δ⎛ ⎞ ⎛ ⎞ ⎛ ⎞ ⎛ ⎞= ⋅ + ⋅ + ⋅ + ⋅⎜ ⎟ ⎜ ⎟ ⎜ ⎟ ⎜ ⎟∂ ∂ ∂ ∂⎝ ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ Whereby partial derivatives are: 329 Aleksandar Milutinovic et al. REM: R. Esc. Minas, Ouro Preto, 68(3), 323-330, jul. sep ...
... variance-covariance matrix for standard deviations of coordinate differences was established: 22 , , 22 , 0 0 N N ET d N E N E E N N N E d d d K A K A E E N E d ν σ σσν σ σσ ν ν ν Δ Δ Δ Δ Δ Δ Δ Δ ∂Δ ∂Δ ∂Δ ∂Δ⎡ ⎤ ⎡ ⎤ ⎢ ⎥ ⎢ ⎥ ⎡ ⎤⎡ ⎤∂ ∂ ∂ ∂= ⋅ ⋅ = ⋅ ⋅ =⎢ ⎥ ⎢ ⎥ ⎢ ⎥⎢ ⎥∂Δ ∂Δ ∂Δ ∂Δ⎢ ⎥ ⎢ ⎥⎣ ...
... 2023-10-14 03:41:00 Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan” Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду ...Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić. "Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”" in Revista Escola de Minas, School of Mines Magazine, Sao paulo, Brasil : SciELO (2015)
-
Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode
Škrivanj Sandra, Stanković M. Dalibor, Khan Muslim, Nikolić S. Aleksandar, Vulić Predrag, Manojlović D. Dragan (2015)Škrivanj Sandra, Stanković M. Dalibor, Khan Muslim, Nikolić S. Aleksandar, Vulić Predrag, Manojlović D. Dragan. "Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode" in Analytical & Bioanalytical Electrochemistry 2 no. 7 (2015): 230-241
-
Optimisation of underground mine decline development system using genetic algorithm
... Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Optimisation of underground mine decline development system using genetic algorithm | Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović ...
... UPOTREBA GENETSKOG ALGORITMA U OPTIMIZACIJI OTVARANJA PODZEMNOG RUDNIKA SISTEMOM NISKOPA Gligorić Zoran 1 , Ganić Aleksandar 1 , Tokalić Rade 1 , Milutinović Aleksandar 1 Received: October 28, 2014 Accepted: December 3, 2014 Abstract: When deposit is composed of few ore bodies ...
... , , n i i i i i i i f x y z c R x x y y z z (3) 2 2 2 2 1 , , , , , n s s s d i s s s i f x y z x y z d c R x x y y z z (4) 2 2 2 3 1 , , n s s s s i m s m s m s i f x y z s c ...Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović. "Optimisation of underground mine decline development system using genetic algorithm" in Underground mining engineering, Beograd : Univerzitet u Beogradu – Rudarsko–geološki fakultet (2014)
-
Старост варисцијских гранитоида источне Србије одређена LA ICP-MS U-Pb методом на цирконима. (LA ICP-MS U-Pb zircon dating of Variscan granitoids in Eastern Serbia).
Шарић Кристина, Ерић Сузана, Цветковић Владица, Peytcheva Irena, Јовановић, Д., Пачевски Александар (2014)Шарић Кристина, Ерић Сузана, Цветковић Владица, Peytcheva Irena, Јовановић, Д., Пачевски Александар. "Старост варисцијских гранитоида источне Србије одређена LA ICP-MS U-Pb методом на цирконима. (LA ICP-MS U-Pb zircon dating of Variscan granitoids in Eastern Serbia)." in Оптимално истраживање и одрживо коришћење геолошких ресурса : зборник радова XVI конгреса геолога Србије, Donji Milanovac, 22-25.05.2014, Београд:Српско геолошко друштво (2014): 232-233
-
Petrogenesis and tectonic inferences from the study of the Mt. Cer pluton (West Serbia)
Koroneos Antonis, Poli Giampiero, Cvetković Vladica, Christofides George, Krstić D., Pecskay Zoltan (2011)Koroneos Antonis, Poli Giampiero, Cvetković Vladica, Christofides George, Krstić D., Pecskay Zoltan. "Petrogenesis and tectonic inferences from the study of the Mt. Cer pluton (West Serbia)" in Geological Magazine 148 no. 1, Cambridge, UK:Cambridge University Press (2011): 89-111. https://doi.org/10.1017/S0016756810000476
-
Size–strain line-broadening analysis of anatase/brookite (TiO<sub>2</sub>)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis
Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović (2022)A size-strain line-broadening analysis of the XRPD patterns and Raman spectra for two anatase/brookite (TiO2)-based nanocomposites with carbon (C) was carried out and the results compared with those of a similar sample free of carbon. The crystal structures and microstructures of anatase and brookite, as well as their relative abundance ratio, have been refined from XRPD data by the Rietveld method (the low amount of carbon is neglected). The XRPD size-strain analysis resulted in reliable structure and microstructure results ...Materials Chemistry, Metals and Alloys, Atomic and Molecular Physics, Optics, Electronic, Optical and Magnetic MaterialsAleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović. "Size–strain line-broadening analysis of anatase/brookite (TiO2)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2022). https://doi.org/10.1107/S2052520622001731