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Упит dcterms_creator_txt:Dejan R. Stevanović

1234 items

  • 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
    ... Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Environmental Energy Security Indicators as Tools for Environmental Protection | Aleksandar Madžarević, Dejan Ivezić, Marija Živković ...
    ... – 28. 2019, Vrdnik, Serbia ENVIRONMENTAL ENERGY SECURITY INDICATORS AS TOOLS FOR ENVIRONMENTAL PROTECTION Aleksandar Madžarević1, Dejan Ivezić2, Marija Živković3, Miloš Tanasijević4 1-5University of Begrade – Faculty of Mining and Geology, Belgrade, SERBIA, aleksandar.madzarevic@rgf ...
    ... 17. Soud, H., Fukasawa, K., Developments in NOx abatement and control, IEACR/89, IEA Coal Research, London, 1996. 18. Carpenter, A., Davidson, R., NOx emissions and control, IEA Clean Coal Centre, London, UK, 2006. 19. IEA, NOx Emissions from Fuel Combustion, 2018b, доступно на: https://webstore ...

  • Application of geophysical surveys for solving the problem of leakage of an embankment dam

    Branislav Sretković, Dejan Vučković, Dejan Miloševski (2022)

  • Tehnike vertikalnog elektrometrijskog sondiranja i elektrometrijskog multielektrodnog profilisanja primenjene na istom profilu u realnim uslovima

    Dejan Miloševski, Dejan Vučković, Branislav Sretković (2018)

  • Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world

    Bogoljub Vučković, Bojan Dimitrijević (2023)
    The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...
    lignite, heavy metals, concentrations
    ... = 35 ppm Kovin 2 / Open Pit Drmno under running |0 Low M High R. Vel ika M or av a OI II Coal Layer Zn avg. = 40 ppm R. Vel ika M or av a |0 Low M High III Coal Layer Zn avg. = 30 ppm |0 Low M High R. Vel ika M or av a ICoalLayer Pb avg. = 40 ppm Kovin 2 Open ...
    ... 4950000- R. Veli 4948000- 4948007. 4946000. 4946000. 75040007500000750800075100007512000751400075160007512000762000076220007524000 4964000. 4964000- |j 4962000. 4962000- 4960000. 4960000. 4958000. 4958000- 4956000. 4956000. 4954000. 4954000- 4952000. 4952000- 4950000. R. Vel 4948000 ...
    ... Open Pit Drmno under running II Coal Layer Pb avg. = 20 ppm , III Coal Layer Pb avg. = 12.5 ppm a _— — _ m ——— R K a ___ _— ___— K r — — — _— ——— E e= | CoalLayer | e= MM CoalLayer | el MM CoalLayer || Cu avg. = 60 ppm m Cu avg. = 45 ppm m —. Cu avg. = 40 ppm m eosod| Open Pit Drmno | ...

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Two approaches to compilation of bilingual multi-word terminology lists from lexical resources

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2020)
    In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...
    Linguistics and Language,Software,Artificial Intelligence,Language and Linguistics

  • Geotechnical effects of municipal solid waste destruction with different compaction methods

    Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Gordana Hadži-Niković (2022)
    Disposal of waste in municipal solid waste landfills is the only way of waste disposal in Serbia, with daily compaction and covering with soil material. Due to less space for the construction of new landfills, it is necessary to use their maximum capacity. Well-compacted municipal solid waste takes up less volume and enables safer storage, so it is useful to previously determine the compaction parameters in the laboratory: maximum dry unit weight (γdmax) and optimal water content (wopt). In ...
    komunalni otpad, zbijanje, Proktorov opit, malj sa šiljcima

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... .i e GRGUNDWA:TERI .. .MRVNVA . |, . R. . ... JN NEKOJ. .Pt . NNNA MV/oveployuliyoog . 20ooo000u0o d0ggD05aaa0D000000o0000goe Reading Comprehension..........i c "PHERMAT: WATER lyy bg • + 985 + „As acl ŽM + +) -}+ • • MOMO -JMI Vocabulary.(.. ... d.. R. O . aMa - -IOI MON Reading Comprehension ...
    ... ............a.. 148 • Unit6• GEOPHYSICS, SEISMICITY AND PROSPECTING Partl Seismic waves .......... e 152 Mocabulary.7.09...y. ..0A P J R ). .RkM . R .. RMM . da 155 Reading Comprehension...........te. 157 Part2 SEISMIC MONITORING........ttt tt 158 iWocabulary„...g .. i. -M-fyava. a o e ...
    ... e 164 Mocabulary/:f. a . . K. L. LD.JOO y. OR dd R- tt . wwR o 167 Reading Comprehension...........i.. 168 (Grammar Sporeyi:20. 7 . .ČR L . val ı ı . Mg (evaii6e oOM caL , , 58500 169 JExerGcises-. .NA . JNA NrT. . .7. TON A . .. . . . . . . R. aJEO.. 170 Geological Wonders ... . 171 Profession ...

  • Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process

    Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)
    Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...
    DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker
    ... were calculated as F(R) = (1 — R)Ž/2R, where R is the diffuse reflectance of the Molecules 2023, 28, 655 6of18 'V»Os sample. Taking into account that F(R) is proportional to the absorption coefficient , the Tauc plot [35] was obtained by using the following equation: (hv F(R))!" = A(hv — E,) ...
    ... [33]. R a m a n in te ns it y 100 200 300 400 500 600 700 800 900 1000 1100 1200 Raman shift (cm) Figure 5. Experimental Raman spectrum of V»Os catalyst (after a baseline correction). 2.4. UV-Vis In order to estimate the energy bandgap of V>»Os powder, Kubelka-Munk functions F(R) [34] were ...
    ... — j E,„= 2.24 eV (direct) 0.000 MOEA LN KLLUNLLLL 10 15 20 25 30 35 40 45 50 55 Pv{(eV) Figure 6. Transformed Kubelka-Munk functions (F(R) hv)Ž and (F(R) hv)1/? assuming,direct and indirect energy bandgap in the V»Os sample, respectively. It should be noted that different V)»Os structures may ...

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • Mehanizam nastanka bjelasičke klipe u internim Dinaridima severne Crne Gore

    Katarina Stefanović (2024)
    Bjelasička klipa predstavlja segment Internih Dinarida na području severne Crne Gore. Područje obuhvata tektonski kontakt Drinsko-ivanjičke jedinice i Istočnobosansko-durmitorske jedinice, pri čemu se na širem području nalaze i jedinice Prekarst i Zona bosanskog fliša. Tektonska klipa Drinsko-ivanjičke jedinice, odnosno bjelasička klipa, kao i generalna tektonska evolucija područja u kom se ona nalazi, nisu izučeni u adekvatnoj meri. Stoga je cilj ovog rada pribavljanje novih podataka o tektonskoj evoluciji bjelasičke klipe, koji mogu biti značajan prilog za bolje poznavanje geodinamičke ...
    Interni Dinaridi, paleonaponska analiza, bi-direkciona ekstenzija, rased Skadar-Peć, dekstralno smicanje
    ... Sledeći parametar Je R', koji predstavlja indeks režima napona, i na osnovu odnosa R' ı R bliže se može odrediti u kakvom naponskom polju su nastale rasedne strukture (Delvaux i Sperner, 2003). Postoje tri osnovne vrste odnosa ovih parametara (Delvaux i Sperner, 2003): _ R'=R kada je o1 vertiaklna ...
    ... ftenzora stresa); R — relativni odnos magnituda napona; R' - indeks režima napona, O – kvalitet; Tektonski režim — pokazuje da li je kretanje čisto ili sa izraženom horizontalnom komponentom. 'š S.|5 a = 55 ES|Z ŽE = | sSs| SS|SS| o 62 63 N| |R|R |Q| % | EBE SOB| . -- - zs BO r ž BE | 77 | IBD ...
    ... vertiaklna (ekstenzioni režim), _ R'=2 - R kada je o2 vertikalna (transkurentni režim), – R'=2 + RR kada je o3 vertikalna (kompresioni režim). Na osnovu ovoga se dobija da Je za vrednost R' od 0.5 režim čist ekstenzioni, za vrednost 1.0 transtenzioni, za 1.5 transkurentni, 2.0 transpresioni i za vrednost ...

  • Middle Jurassic terebratulide brachiopods from the Jordan Valley (northwestern Jordan)

    Howard R. Feldman, Barbara V. Radulović, Vladan J. Radulović, Fayez Ahmadc (2021)
    U radu je izvršena revizija i detaljan opis srednjojurskih brahiopoda Jordanske doline, a takodje su izdvojeni i novi taksoni. Sa profila Arda iz gornjeg bata (Hamam formacija) i donjeg keloveja (Muganija formacija) odredjeni su novi rod i vrsta Jordanithyris ardainensis. Iz gornjeg bata Hamam formacije (krečnjaci, dolomiti, peščari i laporci) izdvojena je vrsta Ptyctothyris quillyensis. Zajednica koju čine Arabatia bihinensis, Ectyphoria sinaiensis, Ptyctothyris quillyensis, Dorsoplicathyris dorsoplicata i Tubithyris jurayfahiensis potiče iz donjokelovejskih krečnjaka sa proslojcima laporaca Muganija formacije. Brahiopodi ...
    Brachiopoda, Terebratulida, severozapadni Jordan, srednja jura, gornji bat, donji kelovej

  • 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

  • Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E

    Luka Nikolić (2024)
    Površinska eksoloatacija ležišta mineralnih sirovina, a posebno uglja (lignita) vrši se primenom različitih rudarskih mašina. U zavisnosti od tipa ležišta, rudarsko-geoloških uslova, ekonomske analize i sl. koriste se sistemi sa kontinualnim ili diskontinualnim načinom rada.Kod kontinualnih sistema, primenjuju se kompleksne rudarske mašine kod kojih se proces odvija neprekidno odnosno bez ciklusa utovara, transporta i odlaganja i najčešće rade u sve tri smene. Rotorni bageri i bageri vedričari, transporteri sa gumenom trakom, odlagači ili deponijske mašine čine tkz BTO ili ...
    rudarstvo, rotorni bager, ugalj, ShRs 1300
    ... ugla bočne kosine. Razlog je taj što se vrlo često menja izgled čeone kosine. Zo1 = R — (Fg + f„) -- (hrg -- r) * ctg0b Zo1 = 33,64 — (11,5 + 2,32) — (25 — 4,5) * ctg65,1 = 10,30[m] __ dst+tst Casag Zo2=r+ (r ) * ctgag — h1 * ctgB» 0,8+0,2 cos23,70 Zo? = 4,5+{4,5 – )) « ctg23,70 — 5,5 * ctg65 ...
    ... Ugao nagiba bočne kosine: tgP, – hrg-T _ _25—4,5 dPb — ig-la _ 33,64—24,1 = 2,15 — f» = 65,1* hyg = H – hI +r = 26 — 5,5 + 4,5 = 25|m] lg = R * singogu = 33,64 * sin909 = 33,64m R, = Ls * cosag + e = 35,1 * cos 23,70% + 1,5 = 33,64[m] hrg-Xb __ 25—10,9 Ls 35,1 sinag = = 0,402 > a,„ = 23 ...
    ... težišta okretnog dela gornje gradnje Moment trenja u oslono-okretnom uređaju: R 2*Yk Ađt = 0,01 * g* (Ađa +]Mys) * * f.* ]%r * ];k 1,815 2*0,054 M, = 0,01 « g * (300 + 6) * * 0,1 * 1,25 * 1,25 = 79{|kNm] R- poluprecnik obrtno-oslonog kruga meren do ose kružne staze rk- poluprečnik oslonih ...

  • The Serbian Geothermal Energy Sector

    Ivezić Dejan (2011)

  • СТРАТЕШКИ ЦИЉЕВИ ЕНЕРГЕТИКЕ РЕПУБЛИКЕ СРБИЈЕ

    Ivezić Dejan (2018)

  • Geohemija

    Dejan Prelević (2021)
    geohemija

  • Praktikum iz depozicionih sistema

    Dejan Radivojević (2020)
    sedimentologija

  • Metalogenetske karakteristike ležišta bakra Cementacija "- Mali Krivelj( Bor )"

    Dejan Koželj (1992)
    Metalogenija, bakar, Bor

  • Numeričko fokusiranje kao metod odrade podataka geoelektričnog skeniranja

    Dejan Vučković (1998)
    Numeričko fokusiranje, geoelektrično sondiranje