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Упит dcterms_creator_txt:Miodrag K. Pavićević

754 items

  • Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine

    Lazar M. Kaluđerović (2018-01-17)
    fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...
    adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon
    ... ra k 2H 18 ,1 1 ± 1, 05 8, 11 ± 0 ,1 2 6, 99 ± 0 ,5 4 6, 91 ± 0 ,2 0 5, 55 ± 0 ,1 3 4, 41 ± 0 ,2 3 U zo ra k 2P 4, 87 ± 0 ,2 2 2, 60 ± 0 ,2 0 1, 92 ± 0 ,1 5 1, 86 ± 0 ,1 4 1, 75 ± 0 ,1 0 1, 61 ± 0 ,0 9 U zo ra k 1H ...
    ... zo ra k 1P 1, 62 ± 0 ,0 9 1, 62 ± 0 ,0 5 1, 63 ± 0 ,0 9 1, 61 ± 0 ,1 1 1, 63 ± 0 ,0 6 1, 60 ± 0 ,1 0 U zo ra k R 1, 17 ± 0 ,0 9 1, 01 ± 0 ,0 8 0, 94 ± 0 ,0 5 0, 90 ± 0 ,0 4 0, 84 ± 0 ,0 4 0, 70 ± 0 ,0 4 U zo ra k N aM ...
    ... ra k 3H 10 ,0 3 ± 0, 84 6, 99 ± 0 ,4 1 6, 01 ± 0 ,4 4 4, 13 ± 0 ,2 4 3, 35 ± 0 ,1 5 2, 90 ± 0 ,1 6 U zo ra k 3P 6, 67 ± 0 ,4 1 4, 91 ± 0 ,3 2 3, 95 ± 0 ,3 1 3, 15 ± 0 ,2 6 2, 31 ± 0 ,1 4 1, 80 ± 0 ,1 1 U zo ra k 2H ...

  • Testing the energy value of different types of coal by the method of active thermography

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković (2020)
    In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...
    Infrared imaging, nondestructive testing, active thermography, coal.

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... 2000 4000 6000 8000 10000 12000 14000 16000 0 500 1000 1500 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-49. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...
    ... 4000 5000 6000 7000 0 150 300 450 600 750 900 1050 1200 1350 1500 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-50. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...
    ... 3000 4000 5000 6000 7000 0 200 400 600 800 1000 1200 1400 1600 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-51. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... 2000 4000 6000 8000 10000 12000 14000 16000 0 500 1000 1500 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-49. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...
    ... 4000 5000 6000 7000 0 150 300 450 600 750 900 1050 1200 1350 1500 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-50. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...
    ... 3000 4000 5000 6000 7000 0 200 400 600 800 1000 1200 1400 1600 Rastojanje r (m) M a k s im a ln a k o li či n a e k s p lo z iv a p o i n te rv a lu u s p o re n ja Q ( k g ) Slika 5-51. Zavisnost maksimalnih količina eksploziva po intervalu usporenja u funkciji ...

  • 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
    ... Arad ŠabacBijeljina Sombor M A Đ A R S K A R U M U N I J A S R B I J A H R V A T S K A HERCEG O VINA BO SNA I 50 km250 22212019 FRUŠKA GORA PLANINE VRŠAČKE/VĂRADIA BUKULJA D I N A R I D I A P U S E N I J U Ž N I K A R P A T I CER Bukovac ...
    ... Gajdos, S. Pap, I. Révész, K. Szentgyörgyi, and L. Völgyi, 1987, Ablagerungen der Kunság‐Stufe (Pannonien s. str.) auf der Grossen Ungarischen Tiefebene, Annals of the Hungarian Geological Institute, v. 69, p. 179–211. Bérczi, I., G. Hámor, A. Jámbor, and K. Szentgyörgyi, 1988, Neogene ...
    ... History of the Mediterranean Basins, Technip, Paris, p. 143–164. Bistričić, A., and K. Jenko, 1985, Area No. 224 b1: Transtethyan Trench “Corridor”, YU. In: Steininger, F.F., Senes, J., Kleemann, K. and Rögl, F. (Eds.), Neogene of the Mediterranean Tethys and Paratethys. Stratigraphic ...

  • Temperature induced evolution of nanostructured Ni0.9Zn0.1O

    Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo (2010)
    The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure ...

  • Петролошке и техничке карактеристике амфиболита Потконџила (Теслић)

    Srećković-Batoćanin Danica, Vasković Nada, Radulović Silvana, Matović Vesna, Stević Miodrag (2015)

  • Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit

    Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)
    Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... text. The at.% As was calculated from XRPD data according to [14]. Impurities were determined as an averagjee of 15 SEM-EDS analyses. Location/ k i k o i3 at.% As Impurities [at.%] Sample a[A] biA] c[A] |: 0| VIA*] duui (XRPD) (SEM-EDS) Rudnik Rud05/1 5.748(2) 5.680(2) 5.778(2) 112.09(1) 174 ...
    ... 100 km iii ==t-Macedorian Massi E v.arzone Pelagonian Zone BIŠaBP Rnodope complex [0 carpatho-Balkanides [7\ | Moesian Platform B l a c k s e a E===== 50 km Ć . [E osstal units of Adria [ Pannonian Basin josnian Flysch Zone Judva-Karsta-Cukali Zone | 0b |Šumadija-Kopaonik ...
    ... energy-dispersive X-ray spectroscopy (EDS). The quantification was assessed by the Cliff-Lorimer ratio thin section method (four iterations), with the Si-K line as the ratio standard element and line [20]. The calculated composition, mean of 16 spot analyses, was determined as (wt%): Fe 34, As 47, S 19 ...

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • 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 (2015)
    ... 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⎢ ⎥ ⎢ ⎥⎣ ⎦ ⎣ ⎦ ...
    ... planned to be exited to, is located at the level +420m. This is the longest complex of the designed underground chambers, whose spatial length is d k =743.52m, and total horizontal length is d=739.73m. The total of 54 points is designed in those chambers; those points are to represent the future ...
    ... ∂ ∂⎣ ⎦ ⎣ ⎦ Whereby: A - the coef�cient matrix (Jacobian matrix) that represents matrix of partial derivatives when compared with the variables; K - variance-covariance measure- ment matrix; REM: R. Esc. Minas, Ouro Preto, 68(3), 323-330, jul. sep. | 2015328 Mine surveying works for the purpose ...

  • The Newton method for solving nonlinear equations based on aggregation operators

    Nebojša M. Ralević, Dejan Ćebić (2019)

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu

    Nikoleta Aleksić (2021)
    ... 6 8 10 12 0 0.2 0.4 0.6 0.8 1 1.2 0 12 24 36 48 60 72 84 96 K o n c e n tr a c ij a g li c e ro la ( g /l ) K o n c e n tr a c ij a u k u p n o g a z o ta ( g /l ) K o n c e n tr a c ij a u k u p n o g f o s fo ra ( g /l ) Vreme (h) Rezidualna koncentracija ...
    ... u Leskovcu, Univerzitet u Nišu; predsednik), prof. dr Zoran B. Todorović (Tehnološki fakultet u Leskovcu, Univerzitet u Nišu; mentor i član), dr Miodrag V. Zdujić, naučni savetnik (Institut tehničkih nauka SANU, Beograd; član) i dr Marija R. Miladinović, naučni saradnik (Tehnološki fakultet u Leskovcu ...
    ... sed deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids, 266, 557-567. [10] Mamtani, K., Shahbaz, K., Farid, M.M. (2021). Deep eutectic solvents – Versatile chemicals in biodiesel production. Fuel, 295, 120604. [11] Manurung, R., Ramadhani, ...

  • Избор одговарајуће механичке методе

    Анастасија Мирјанић (2024)
    Експлоатација нафте и гаса кључна је за задовољење глобалних енергетских потреба. Различите методе се користе за ефикасно вађење тих природних ресурса из земљe. Механичке методе експлоатације, које укључују различите врсте пумпи и компресора, играју значајну улогу у овом процесу. У нафтној индустрији, ефикасно вађење нафте и гаса зависи од избора одговарајуће технологије пумпања. Две од најраспрострањенијих технологија су дубинске пумпе са клипним шипкама (енгл. Sucker rod pumps- SRP) и електричне потапајуће пумпе (енгл. Electrical submersible pump- ESP). Овај завршни рад ће ...
    дубинске пумпе са клипним шипкама, замена, електрична потапајућа пумпа, производња, бушотина

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... convex fuzzy number to be greater than k convex fuzzy numbers Mi (i = 1,2, . . . , k) can be defined: V (M ≥ M1,M2, . . . ,Mk) = V [(M≥M1) and (M ≥ M2) and . . . and (M ≥ Mk)] = min V (M≥Mi), i = 1, 2, 3, . . . , k (9) Assume that: d′(Ai) = minV (Si ≥ Sk) (10) for k = 1,2, . . .n; k̸=i. Then the weight ...
    ... Renew Sustain Energy Rev 110, 101–117. Shen, Y., Lin, G., Li, K., Yuan, B., 2010. An assessment of exploiting renewable energy sources with concerns of policy and technology. Energy Policy 38 (8), 4604–4616. Strantzali, E., Aravossis, K., Livanos, G.A., 2017. Evaluation of future sustainable electricity ...
    ... 1983. Procedures for synthesizing ratio judgements. J Math Psychol 27 (1), 93–102. Al Garni, H., Kassem, A., Awasthi, A., Komljenovic, D., Al-Haddad, K., 2016. A multicriteria decision making approach for evaluating renewable power generation sources in Saudi Arabia. Sustain Energy Technol Assess 16, ...

  • Tektonska evolucija istočne periferije timočke eruptivne oblasti

    Stefan Zujić (2024)
    U radu su predstavljeni rezultati proučavanja tektonskih i litostratigrafskih karakteristika istočnog oboda Timočke eruptivne zone. Zaključci o geološkim odnosima u okviru Timočke eruptivne oblasti i susednih geotektonskih jedinica izvedeni su na osnovu podataka prikuljenih tokom terenskih istraživanja i podataka dobijenih iz publikovanih radova. Rezultati rada ukazuju da je teren koji je bio tema ovog istraživanja, u strukturno-tektonskom smislu oblikovan tokom glavnih geodinamičkih događaja u okviru Karpato-balkanskog orogenog luka. Analizom strukturnog sklopa su utvrđeni glavni deformacioni događaji koji su predsavljeni ...
    tektonska evolucija, timočka eruptivna oblast

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Sentiment Analysis of Serbian Old Novels

    Ranka Stanković, Miloš Košprdić, Milica Ikonić Nešić, Tijana Radović (2022)
    In this paper we present first study of Sentiment Analysis (SA) of Serbian novels from the 1840-1920 period. The preparation of sentiment lexicon was based on three existing lexicons: NRC, AFFIN and Bing with additional extensive corrections. The first phase of dataset refinement included filtering the word that are not found in Serbian morphological dictionary and in second automatic POS tagging and lemma were manually corrected. The polarity lexicon was extracted and transformed into ontolex-lemon and published as initial ...
    sentiment lexicon, sentiment analysis, distant-reading, machine learning, old novels

  • Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia

    Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)
    The paper compares the flow regimes of the Resava River at the gauging stations of the Manasija Monastery (upper course) and the town of Svilajnac (lower course). The hydrological analysis encompasses a multiyear period of monitoring (1982–2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km2) and the Manasija Monastery station (358k m2), considering the overall monitoring period and characteristic years. The results indicate that the specific runoff in ...
    hydrogeological characteristics, water regime, water balance, karst aquifer, Resava catchment area
    ... s t-] 5 Š 5 t |3 5 5 t-i Š k k - - -j |j k_ -i -j -i -i e E SBSBSSBS BBB R B B G B BBB a dii 0 š . a bvu.ž·ižšjžrgozn |—g.s. at Manasija Monastery —-g:5. at Svilajnac |—C-g5. at Manasija Monastery —-g.5. at Svilajnac • 180 . 160 s s o : z a : o g 10 P Ž ž Š w š š k i 33 Š o |}] E 40 || > ...