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Упит dcterms_creator_txt:Bojana Stojanović

188 items

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... due to blasting: works in quarries and their impact on the environment and population. Applied Sciences 2021, 11(5), pp. 2118. 3. Malbašić, V.; Stojanović, L. Determination of Seismic Safety Zones during the Surface Mining Operation Development in the Case of the “Buvač” Open Pit. Minerals 2018, 8(2) ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit

    Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić (2024)
    Čukaru Peki, epithermal mineralization, hydrothermal alterations

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata

    Sabina Z. Kovač (2015-09-28)
    Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...
    hidrotermalna sinteza, mikroporozna jedinjenja, arsenati, fosfati,rendgenska strukturna analiza
    ... H. (1998) Z. Anorg. Allg. Chem. 624, 17–20. 152. Stojanović, J., Đorđević, T., Karanović, Lj. (2008) Acta Crystallogr. C64, i91–i94. 153. Stojanović, J., Đorđević, T., Karanović, Lj. (2010) Acta Crystallogr. C66, i55–i57. 154. Stojanović, J., Đorđević, T., Karanović, Lj. (2012) J. Alloy. Compd ...
    ... Sr4Cu3(AsO4)2(AsO3OH)4·3H2O Ba2Cu4(AsO4)2(AsO3OH)3 260044, Đorđević et al., 2008 174557, Đorđević and Karanović, 2010 184035, Stojanović et al., 2012 184036, Stojanović et al., 2012 246158, Đorđević and Karanović, 2008 246159, Đorđević and Karanović, 2008 2 AsV 4 tetraedar 2,210 enargit, Cu3AsS4 ...
    ... 440 kutinait, Cu14Ag6As7 95930, Karanović et al., 2002 11 PV 4 tetraedar 1,540 Cd2Cu(PO4)2 Zn3(PO4)2(H2O)0,8(NH3)1,2 249777, Stojanović et al., 2008 248257, Stojanović et al., 2010 * Angstrem je jedinica van SI sistema, međutim dozvoljena je u kristalografiji za veličine kao što su veličina ...

  • A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)

    Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin (2016)
    ... RUMBAUGH, J.O. and RUMBAUGH, D.B. (2011) Guide to using Groundwater Vistas: version 6. New York: Environmental Simulations. STEVANOVIĆ PETROVIĆ, N., STOJANOVIĆ, S. and COJIĆ, M. (2013) Peštan riverbed replacing for opening phase of new open pit “E” - Kolubara coal basin. In: PAVLOVIĆ, V. (ed.) Proceedings ...

  • Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG

    Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić (2024)
    CIII-RS-0038, Recon Tethys, DEMONITOR, TMCmod, REASONING

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata

    Dejan N. Radivojević (2014-12-30)
    Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...
    Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika
    ... Vojinović, A. Mitrović, V. Matić, G. Grbović, and R. Stojanović, 1988, Novi pristup obradi i interpretaciji podataka registrovanih metodama geofizičkog karotaža, DIT NIS‐Naftagas, v. 14, p. 28–44. Martinović, S., M. Bejatović, R. Stojanović, M. Savičić, and S. Knežević, 1997, Procena ...
    ... nekoliko radova o naftnoj geologiji i to uglavnom u lokalnim časopisima (Kostić, 2000; Kostić & Ercegovac, 2002; Šolević et al., 2006; Stojanović et al., 2007; Šolević et al., 2007; Jelenković et al., 2008; Pigott & Radivojević, 2010; Mrkić et al., 2011; Yilmaz et al., ...
    ... ih i geoloških svojstava metodama geofizičkog karotaža na istražnoj bušotini Mx‐1, DIT NIS‐Naftagas, v. 25, p. 46–53. Martinović, S., R. Stojanović, M. Savičić, D. Obrenović, and S. Ivanišević, 2000, Geofizički karotaž – obrada i interpretacija, DIT NIS‐ Naftagas, p. 383. Martins‐Neto ...

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... M., Knapp, K.T., Compound forms of fossil fuel fly ash emissions, Environmental Science Technology 2010, Volume 4, pp. 450-456 21. Jovašević-Stojanović, M., Bartonova, A., Current State of Particulate Matter Research and Management in Serbia, CICEQ, Volume 16 , 2010, pp. 207-212 22. Djukić P ...

  • Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)
    Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...
    višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager
    ... Criteria in AHP: a Systematic Review of Literature. Procedia Computer Science, 55, pp. 1123-1132, 2015. DOI: 10.1016- /j.procs.2015.07.081 [15] Stojanović S, Razvoj modela za evaluaciju internet informacionih resursa primenom metoda višekrite- rijumskog odlučivanja. Doktorska disertacija, Zaje- čar ...

  • Connections between the Levant and the Balkans in the late Middle Pleistocene: Archaeological findings from Velika and Mala Balanica Caves (Serbia)

    Dušan Mihailović, Steven L. Kuhn, Katarina Bogićević, Vesna Dimitrijević, Ana B. Marín-Arroyo, Jelena Marković, Norbert Mercier, Bojana Mihailović, Mike W. Morley, Predrag Radović, William J. Rink, Senka Plavšić, Mirjana Roksandić (2022)
    Major changes in the technological, economic, and social behavior of Middle Pleistocene hominins occurred at the onset of the Middle Paleolithic, 400e200 ka. However, until recently it was not possible to establish when, where, and how certain forms of Middle Paleolithic behavior appeared and spread into Southeastern Europe, mainly owing to gaps in the Paleolithic record. Here we report new results of dating, material culture, and the archaeological context of finds from the Balanica Cave Complex in Sicevo (Serbia). ...
    Neandertalci, starija Kina tehnologija, jabrudijen, populaciona kretanja, kulturni prenos

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... ŠAJNOVIĆ, A. & STOJANOVIĆ, K. (2016): Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia.– International Journal of Coal Geology, 168, 80–107. doi: 10.1016/j.coal.2016.07.008 MITROVIĆ, D., ĐOKOVIĆ, N., ŽIVOTIĆ, D., BECHTEL, A., CVETKOVIĆ, O. & STOJANOVIĆ, K. (2017): ...
    ... 9966. ŽIVOTIĆ, D., WEHNER, H., OSTERTAG­HENNING, C., ERCEGOVAC, M., SCHEE­ DER, G., JOVANČIĆEVIĆ, B., CVETKOVIĆ, O., GRŽETIĆ, I., MILIVOJEVIĆ, J., STOJANOVIĆ, K. & ŠAJNOVIĆ, A. (2007): The organic geochemical, petro­ graphical and palynological composition of coal from the Kovin deposit (Serbia).– Abstract ...

  • Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla

    Lana Mitrović (2024)
    U radu su prikazane najznačajnije osobine prirodnog gasa, uključujući hemijski sastav, jednačine sagorevanja i termodinamičke karakteristike koje predstavljaju osnovu za dalje razumevanje rada. Prikazane su količine prirodnog gasa na evropskom trţištu prema zemlji porekla, kao i njihove zasebne hemijske i termodinamičke karakteristike.Kvalitet prirodnog gasa u Republici Srbiji je posebno poglavlje u radu u okviru kog je detaljnjije opisano snabdevanje Republike Srbije prirodnom gasom, kao i zahtevani kvalitet.Na kraju, obuhvatajući sve prethodno navedeno, prikazan je postupak rešavanja Studije slučaja koja ...
    prirodni gas, toplotna moć, Vobeov broj, zahtevani kvalitet prirodnog gasa, namešavanje

  • Arsenopirit iz rudnih ležišta Šumadijsko-kopaoničke oblasti: paregeneza, sastav i produkti oksidacije

    Ivana N. Jelić (2023)
    Arsenopirit, FeAsS je čest pratilac polimetaličnih orudnjenja Šumadijsko-kopaoničke oblasti. Jedan je od sulfida koji u najvećoj meri koncentriše zlato. Nepoželjan je u rudama jer njegovom oksidacijom na jalovištima može doći do oslobađanja arsena koji spada u elemente toksične za životnu sredinu. U okviru ovog doktorata sistematski su ispitivani arsenopiriti iz različitih stadijuma i tipova orudnjenja rudnih ležišta i mineralizacija Šumadijsko-kopaoničke oblasti (Rudnik, Sastavci, Trepča, Gokčanica – Drenjak i Rujak, Golijska reka i Jurija). Uzorci arsenopirita ispitivani su polarizacionom mikroskopijom ...
    arsenopirit, zlato, skorodit, Šumadijsko-kopaonička oblast, parageneza, zonarnost
    ... environment. Applied Geochemistry 1, 549-558. Stojanović, N. J., Radosavljević, A., S., Karanović, LJ., Cvetković, LJ. (2006): Mineralogy of W- Pb-Bi ores from Rudnik Mt., Serbia. N. Jb. Miner. Abh., 182/3, 299-306, Stuttgart, August 2006. Stojanović, N. J., Radosavljević-Mihajlović A. S., Radosavljević ...
    ... dr Aleksandar Kremenović, redovni profesor, Univerzitet u Beogradu — Rudarsko-geološki fakultet; uža naučna oblast: Kristalografija dr Jovica Stojanović, naučni savetnik, Institut za tehnologiju nuklearnih i drugih mineralnih sirovina; uža naučna oblast: Fundamentalna i primenjena mineralogija ...
    ... komponenti peščara. U gornjokredne sedimente utisnuti su kvarclatiti i dacitoandeziti u vidu malih štokova i dajkova, kao i granodiorit-porfiriti (Stojanović et al., 2006). Neposredna okolina ležišta izgrađena je od donjokrednih flišnih sedimenata i sprudnih krečnjaka koji se Javljaju u vidu sočiva. ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... mixters – Part 43: Test method for the determination of the modulus of elasticity of hydraulically bound mixtures // (2003). [21] Šešlija, M.; Stojanović, M.; Radović, N.; Radonjanin, V.; Malešev, M. Use of fly ash for embankment construction in road construction with and without binders. // Proceedings ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... coal are present in very thin layers, as well as fuzen. The most common macerals are textinite, ulminite, densinite and atrinite (Stojanović & Životić, 2013; Stojanović et al. 2012; Životić et al. 2013). Their vegetal structure is well preserved, sometimes only slightly altered, and visible. The ...
    ... from biogas in Serbia-assessment of emissions reduction.” 7hermal Science 00 (2015): 189-189. Cvetković, Slobodan, Tatjana Kaluđerović Radoičić, Bojana Vukadinović, and Mirjana Kijevčanin. “Potentials and status of biogas as energy source in the Republic of Serbia.” Renewable and Sustainable Energy ...
    ... are dark brown, often with banded structure. The most common macerals of the coals of this group are ulminite, textinite, densinite and atrinite (Stojanović and Životić, 2013). The liptinite content is relatively low, except in the Lubnica basin, where it ranges from 10% to 15% (Ercegovac et al. 2006) ...

  • Neanderthal Settlement of the Central Balkans during MIS 5: Evidence from Pešturina Cave, Serbia

    Dušan Mihailović, Stefan Milošević, Bonnie A.B. Blackwell, Norbert Mercier, Susan M. Mentzer, Christopher E. Miller, Mike W. Morley, Katarina Bogićević, Dragana Đurić, Jelena Marković, Bojana Mihailović, Sofija Dragosavac, Senka Plavšić, Anne R. Skinner, Iffath I.C. Chaity, Yiwen E.W. Huang, Seimi Chu, Draženko Nenadić, Predrag Radović, Joshua Lindal, Mirjana Roksandić (2022)
    Recent research in the southern Central Balkans has resulted in the discovery of the first Middle Paleolithic sites in this region. Systematic excavations of Velika and Mala Balanica, and Peˇsturina (southern Serbia) revealed assemblages of Middle Paleolithic artifacts associated with hominin fossils and animal bones. This paper focuses on Pesturina Layer 4, radiometrically and biostratigraphically dated to Marine Isotope Stage (MIS) 5, which yielded traces of temporary hunting camps. The remains of large ungulate prey are associated with predominantly ...
    centralni Balkan, srednji paleolit, Šarentijen, MIS 5, ponašanje neandertalca