Претрага

Упит dcterms_creator_txt:Ana S. Mladenović

1095 items

  • 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

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... treated with 10mM Al ions (Figure 6 13+ | EAS –—'S—> EA+P Scheme 1. Reaction scheme for non-essential activation; Abbreviations are E—enzyme, S—sKVubstrate, A—activator, P- product. RIGHTSLIMKMK&~Ž --| zj g s P o 5 | Š o S - s = 5 j| E > F3 E o 9 Š Đ 8 8 -| = P F-| ...
    ... to the corresponding control value, from at least three independent experiments performed in triplicate. RIGHTSLIMKMK&~Ž --| zj g s P o 5 | Š o S - s = 5 j| E > F3 E o 9 Š Đ 8 8 -| = P F-| |- o al Ch em is tr y Do wn lo ad ed fr om -| -} P |l = & Š |-5} ...
    ... versus haemoglobin concentration in the absence and presence of different Al ions concentrations at pH2. RIGHTSLIMKMK&~Ž --| zj g s P o 5 | Š o S - s = 5 j| E > F3 E o 9 Š Đ 8 8 -| = P F-| |- o al Ch em is tr y Do wn lo ad ed fr om -| -} P |l = & Š |-5} ...

  • Impact of the variability of technological parameters on the effective reclaiming capacity of bucket wheel reclaimers

    Komljenović D., Nurić S., Kričak Lazar, Pantelić M. (2012)

  • Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides

    Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević (2021)
    ... adsorption of S-metolachlor was highest for HDTMA-montmorillonite with 1CEC saturation.  High sorption of examined herbicides on some organically modified montmorillonites creates an opportunity for application of these substrates as potentially useful material for removal of S-metolachlor ...
    ... Herbicides | Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević | Eurosoil2020, online event 2021 | 2021 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005509 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... batch adsorption method was used to measure the efficiency of inorganic and organic modified montmorillonites for the sorption of the S-metolachlor. Mineralogical characterization of natural clay samples was performed using the X-ray diffraction method. This method was also ...

  • On the distribution modulo 1 of the sum of powers of a Salem number

    Dragan Stankov (2016)
    It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)

    Nevenka Đerić, Nataša Gerzina (2014)
    Gornja kreda, radiolarije, Jadar blok, zapadni pojas Vardarske zone, zapadna Srbija
    ... Block; Serbia.– Ann. Univ. Sci. Budapestincnsis, Sect. Geol., 35, 139-140. KARAMATA, S. (2006): The geological development of the Balkan Pe- ninsula related to the approach, collision and compression of Gond- ana and Eurasian units.–- In: ROBERTSON A.H.F. & MOUNTRA- KIS D. (eds.): Tectonic development ...
    ... Geologia Croatica 67/3 r č| F3 |E -i | s s|s = LNKOS s|s žš|a& Hi F| t [} = s lo ME 5 fj FH s Fj s|m El 5 F| s [5] r3 - |H s E 20 s & Š s s < šŠ Age Description Sample E 9 8 7 6 BR 1/4 5 |- BR 1/3 41s |- s e 30 j BR 1/2 2– 1- 0 j BR 1/1 Legend ...
    ... Region.- Geol. Soc. London, Spec. Publ, 260, 155—178. KARAMATA, S.. KNEŽEVIĆ, V., MEMOVIĆ, E. & POPEVIĆ, A. (1994): The evolution of the Northern Part of the Vardar Zone in Mesozoic.-- Bull. Geol. Soc. Greece, 30/2, 479-486. KARAMATA, S., DIMITRIJEVIĆ, M.N & DIMITRIJEVIĆ, M.D. (1999): Oceanic realms ...

  • Contribution to the Tertiary Magmatism in Panonian basin (Serbia): REE and HFSE constraints from the volcanics of the Fruška Gora Mt.

    Vasković Nada, Matović Vesna, Erić Suzana, Arifović Ana (2010)

  • Hidrogeotermalni resursi kao faktor razvoja Srbije

    Milenić Dejan, Milivojević Mihailo, Krunić Olivera, Vranješ Ana (2014)

  • Integrated Management of Groundwaters in Mountain Areas-Zlatibor Mountain Case Study (Western Serbia, Europe)

    Milenić Dejan, Milanković Đuro, Vranješ Ana, Dončev Bojan (2014)

  • Bacteriological pollution of the groundwater of karst springs in Zlatibor

    Milenić Dejan, Vranješ Ana, Dončev Bojan, Jovanović Marina (2014)

  • Dynamic behavior and stress field of excavator SchRs740 extended boom

    Petrović Branko, Petrović Ana, Ignjatović Dragan, Grozdanović Ines (2015)

  • Седиментолошке карактеристике миоценских наслага Доње Трепче

    Ана Зековић, Виолета Гајић, Љупко Рундић, Сабина Ковач (2022)

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... lang="en"> <s id="Verne80days.n2941"> Between Omaha and the Pacific the railway crosses a territory which is still infested by Indians and wild beasts, and a large tract which the Mormons, after they were driven from Illinois in 1845, began to colonise.s> <s id="Verne80days ...
    ... l'Illinois.s>     <s id="Verne80days. n2941"> Između Omahe i Tihog okeana pruga prolazi kroz predeo u kome još ima Indijanaca i divljih zveri - prostranu zemlju koju su počeli naseljavati mormoni oko 1845. godine, kada su ih prognali iz države Ilinois.s> ...
    ... <s id="Verne80days. n2941"> Ανάμεσα στην Ομάχα και στον Ειρηνικό, το τρένο διασχίζει περιοχές όπου συχνάζουν ακόμα Ινδιάνοι και αγρίμια - τεράστια εδαφική έκταση την οποία αρχισαν να αποικίζουν οι μορμόνοι μετά το 1845, οπότε κυνηγήθηκαν από το Ιλινόις.s> <s id=" ...

  • Производња и одржавање рударске опреме на примеру предузећа Колубара метал

    Вања Миловановић (2024)
    У раду је извршено пројектовање технолошког процеса израде вратила на стругу. Кроз теоријску анализу, дати су основни постулати обраде стругањем, стругови као машине алатке, врсте стругова, начини стругања и примењени алати. У практичном делу, дефинисани су редоследи операција и захвата, режими обраде, изабрана машина алатка и алати за све захвате и одређено укупно време обраде потребно да се направи финални производ. Вратило из студије случаја представља компоненту редуктора погона за копање роторног багера SRs.1200.24/4+VR.
    производно машинство, обрада метала резањем, израда вратила на стругу

  • Geotermalne karakteristike područja Semberije , Republika Srpska

    Igor Glavaš (2024)
    Cilj završnog rada predstavlja, opis geotermalnih karakteristika područja Semberije, Republika Srpska, BiH.Rad se sastoji od opšteg dijela u kojem se navode osnovne karakteristike područja (geomorfološke, geografske, hidrološke,hidrometeorološke, geološke, tektonske i hidrogeološke) i specijalnog dijela koji detaljnije ulazi u tematiku osobina geotermalne energije i njihovih karakteristika u zadatom području kao i definisanje geotermalnog potencijala koje to područje ima.Sa prognoznim litološkim profilima 6 dubokih istražnih bušotina su izrađena 2 regionalna geološka, a njegovom konverzijom i hidrogeološka profila na osnovu kojih je, stečena ...
    geotermalna energija, Semberija, geotermalni potencijal
    ... urađenog 25.04.1986-28.04-1986. godine za bunar S-1 sa ciljem osmatranja promjene temperature vode u izdani Je data u sledećoj tabeli: 33 Tabela 4.5. Podaci promjene temperature vode u bunaru S-1 tokom step-test crpljenja t'(s) Q (//s) S (m) PRIMJEDBA Statički nivo 3420 Povrat nivoa ...
    ... svrhu istraživanja nafte (S-1, S- 2 ı S-3 (danas Sv-1)), a kasnije Još dvije (B-1 (danas Bij-I) i Dv-1). Navedene bušotine i njihova litostratigrafija, navedena u različitim literaturama, je korišćena pri izradi profila karata ranije pomenutih priloga. Bušenje bušotine S-1 u Dvorovima duboke 1 345 ...
    ... dr Dejan Milenić, mentor Rudarsko geološki fakultet, Beograd 2. prof.dr Olivera Krunić, član Rudarsko geološki fakultet, Beograd 3. doc.dr Ana Vranješ, član Rudarsko geološki fakultet, Beograd Datum odbrane Završnog rada: 12.09.2024. REZIME Cilj Završnog rada predstavlja opis geotermalnih ...

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material

  • Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina

    Tina Dašić, Ljiljana Vasić (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary Change

  • Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima

    Jelena R. Malenović - Nikolić (2016-07-12)
    Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...
    rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje
    ... F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M ...
    ... 18.11.16 S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F ...
    ... M T W T F S S M T W T F S S M T W T F S S 10 Jan '16 17 Jan '16 24 Jan '16 31 Jan '16 7 Feb '16 14 Feb '16 21 Feb '16 28 Feb '16 6 Mar '16 13 Mar '16 20 Mar '16 27 Mar '16 3 Apr '16 10 Apr '16 17 Apr '16 24 Apr '16 1 May '16 8 May '16 15 May '16 22 May '16 29 May '16 5 Jun '16 12 Jun '16 19 Jun '16 26 ...

  • Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković (2021)
    The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...
    severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija
    ... Z o n e S redna G ora S redna G ora Zone Zone S o u t h C a r p a t h i a n s S o u t h C a r p a t h i a n s ZagajicaDepression ZagajicaDepression P an nonian Basin P an nonian Basin S e r b ia n C a r p a t h i a n s S e r b ia n C a r p a t h i a n s B a l k a ...
    ... cover Covered or suggested fault AlpsAlps A p e n n in e s A p e n n in e s C a rp a th ia n s C a rp a th ia n s ALCAPAALCAPA Tisza-D acia Tisza-D acia D inarides D inarides A d ria A d ria H e lle n id e s H e lle n id e s Balkan sideBalkan side Rhodope Rhodope deformation fronts ...
    ... a n i d e s B a l k a n i d e s M o e s i a n M o e s i a n P m l a t r f o P m l a t r f o T F T F TFTF C F C F M o r a v a V a l l e y C o r r i d o r M o r a v a V a l l e y C o r r i d o r Jastrebac Mts.Jastrebac Mts. Vršac Mts.Vršac Mts. Western Vardar ...