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Упит dcterms_creator_txt:Aleksandra A. Rosić

1704 items

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)

  • The number of nonunimodular roots of a reciprocal polynomial

    Dragan Stankov (2023)
    We introduce a sequence Pd of monic reciprocal polynomials with integer coefficients having the central coefficients fixed as well as the peripheral coefficients. We prove that the ratio of the number of nonunimodular roots of Pd to its degree d has a limit L when d tends to infinity. We show that if the coefficients of a polynomial can be arbitrarily large in modulus then L can be arbitrarily close to 0. It seems reasonable to believe that if ...
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • Parallel Bidirectionally Pretrained Taggers as Feature Generators

    Ranka Stanković, Mihailo Škorić, Branislava Šandrih Todorović (2022)
    In a setting where multiple automatic annotation approaches coexist and advance separately but none completely solve a specific problem, the key might be in their combination and integration. This paper outlines a scalable architecture for Part-of-Speech tagging using multiple standalone annotation systems as feature generators for a stacked classifier. It also explores automatic resource expansion via dataset augmentation and bidirectional training in order to increase the number of taggers and to maximize the impact of the composite system, which ...
    анотација, обрада природног језика, издвајање обележја, композитне структуре, врста речи

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology
    ... thermal conditions within a waste dump. 0 10 20 30 40 50 60 70 80 90 100 O rg a n ic p a rt ic le M in e ra l p a rt ic le N o n -a lt e re d A lt e re d N e w ly f o rm e d H u m in it e V it ri n it e L ip ti n it e In e rt in it e M a s s iv e P o ro u ...
    ... ly ti c c a rb o n C h a rs G ra p h it e C o k e F ra c tu re s , fi s s u re s , c ra c k s B ri g h te r ri m s D a rk e r ri m s P la s ti c is e d e d g e s B a n d s D e v o la ti lis a ti o n p o re s P a le r in c o lo u r p a rt ic le s ...
    ... ly ti c c a rb o n C h a rs G ra p h it e C o k e F ra c tu re s , fi s s u re s , c ra c k s B ri g h te r ri m s D a rk e r ri m s P la s ti c is e d e d g e s B a n d s D e v o la ti lis a ti o n p o re s P a le r in c o lo u r p a rt ic le s ...

  • Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštine Zemun

    Matija Zorić (2024)
    Grad Beograd se nalazi na području koje je izuzetno bogato podzemnim vodama i hidrogeotermalnim resursima. Najveće količine podzemnih voda akumulirane su u okviru aluvijalnih peskovito-šljunkovitih sedimenata i krečnjaka tortonsko-sarmatske starosti. Opština Zemun ima najveći geotermalni potencijal od svih Beogradskih opština, čak 57.7% od ukupnog potencijala celog grada Beograda. Master rad je fokusiran na istraživanju i analizi poznatih tehničkih sistema, kao i termotehničkih sistema koji su u upotrebi na teritoriji opštine Zemun. Tehnički sistemi se odnose na istražno-eksploatacione bunare koji nemaju ...
    geotermalna energija, kvartarni sedimenti, pliocenski sedimenti, teritorija opštine Zemun
    ... 'kofa i B A M O A A A MD NR OMA) | i i i - i — - - — } 7445000 %5@0 0 N Š 4 e k } k b k b k b k } b + } b k } b k b k k } b } k \ _ . s JR J A A I JEJEJEJEJEJEJE JA Ž - _ A L,Wvlrir# Tii a i i — — | IBA M JB NB NMG JBA JMA A Bh BA Oh ...
    ... L ı a —— — Po lj op ri vr ed ni fa k. A a u — — Ba ta jn ic a 1 |_ __ __ __ __ __ Kl :F ic iu a{ {e -y % | _ _ _ _ _ _ _ _ _ _ B : F \ c C i u { e : k ) z ı a — — Ba nk a bi lj ni h ge na I I I — — Ge of iz ič ki in st . r a — — ...
    ... aaaaaaananannannnnnnnne. 17 4.2 Hidrogeološke karakteristike zbijenog tipa izdani u okviru sedimenata pliocenske StarOStiaaaaaaaaa a aaaana a aaaa a aaa a aaa a eae a aaaaa a aaaaat aH t 18 4.2.1 Uslovi prihranjivanja i filtracione karakteristike izdani.................................. 21 4.2.2 Dreniranje ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... oWns is a model of underwater camera for wells with a rotating lens. The CKH has: a camera for recording exploratory wells with a small diameter of up to 50 mm to a depth of 300 m, 4 vertical cameras (diameter 50-70 mm) with high resolution for recording to depths of 300 and 500 m and a camera ...
    ... Zlatibora i Cačka do Beograda. Direktor IRCK-a, Jiang luchi i dr Cao Jianhua boravili su u Beogradu od 15. do 18. juna, kao gosti CHK-a. Tokom njihovog boravka organizovan je prijem od strane Dekana RGF-a i sastanak tokom kojeg su članovi IRCK-a i CHK-a izlagali svoje aktivnosti i aktuelne projekte ...
    ... oooiaaaaaa diii 29 Publications of Centre for Karst Hydrogeology.......caaaaaaaaaaa a aaeanaaniaanaaee— 29 Terenska oprema CHK ........aaaaaaaa a enad n ao a iioaroieoiadatttı 34 Field equipment CKHi.......ć.aaaaaaaaaaaaaa a aaaeaeaaiaa eiaaeialiaaei iii akaaaakiakapiaaiakiakabaaeka 34 Članovi Centra ...

  • Comparative analysis of karst water quality parameters of the Banja spring near Valjevo (Republic of Serbia)

    Jovana Lončar, Jovana Mladenović, Vesna Ristić Vakanjac, Veljko Marinović, Branislav Petrović, Petar Vojnović, Radisav Golubović (2024)
    The monitoring of karst spring release regimes is becoming more and more relevant due to the fact that karst waters are of exceptional quality and most often it is only necessary to chlorinate these waters in order to use them for water supply. In addition to monitoring the discharge regime, it is certainly necessary to establish monitoring of quality parameters that are generally observed sporadically (seasonally or monthly). An example of a well-designed monitoring of quantitative and qualitative parameters ...
    pH, Ec, mutnoća, isticanje, karstno vrelo

  • Review of the Failure at the Flotation Tailings Storage Facility of the “Stolice” Mine (Serbia)

    Dragana Nišić, Nikoleta Aleksić, Bojan Živanović, Uroš Pantelić, Veljko Rupar (2024)
    flotacijsko jalovište, rudnik "Stolice", udes, posledice, GITSM

  • Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite:  Vibrational Spectroscopy and ab Initio Calculation

    M. Ilić, E. Koglin, A. Pohlmeier, H. D. Narres, M. J. Schwuger (2000)
    Batch adsorption experiments in the presence of oxygen were performed to study the interlayer reactions of aniline on Cu(II)-montmorillonite in aqueous solutions. At concentrations below a critical value of CC ) 2.6 mmol dm-3 only a colored Cu(II)-aniline complex is formed, characterized by a stability constant of log(Kassoc/dm3 mol-1) ) 1.5. At concentrations beyond Cc aniline polymerizes yielding a dark brown product, which is identified by two vibrational spectroscopy techniques, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and ...
    Анилин, адсорпција, полимеризација, Cu(II)-Монтморилонит, ФТИР, аб инитио прорачун

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)

  • Допринос одређивању безопасног растојања при извођењу минирања

    Slobodan Trajković, Sanja Bajić, Ivan Krsmanović (2023)
    минирање, експлозија, потреси од минирања
    ... XHJIpOKCHJIHMa TBO:>I}a. #+ „HuHcehepckO - 20O0J0LMKe Kapakmepucmuke jecuuwama — OBe CreHc npHnajajy IpyrnM Be3aHHMX CTCHa, KOJC Cy HHTC3HBHO HcIyIaHc H KapcrTHQ)MMKOBaHe. HcenarTHBaMbeM je yTBPpleHOo a Cy yCJIOBH 30 paji, Kao H BHIHCTOJHIHH4 CKcIIJOATALIHJA jc moKa3aa a Cy HH)KEHbCDpCKO- ...
    ... 3anrTHTe OKOJIHHX rpabeBHHcKHX O0jeKaTa KOJI yrBpbHBaba OesomacHor · pacrojaba · H MaKCHMaJIHEC KOJIHUHHC CKCIIIO3HBa KOJa CČ MOXKC aKTHBHpaTH a a HeMa OmrrehePa Ha rpabeBHHCKHM O0jeKTHMa. KijbyuHe peuM: MHHHpabć, CKCIJIO3HJA, TIOTpecH 0JI MHHHPpahba. 1. YBOJI Koji B3Boljeba MHHHPpaMb5a ...
    ... , THM IIpe mro y CpOujH jomi yBEK He mMNOCTOJE 173 ABSTRACT This paper elaborates the problems connected with establishment of a safety distance paying a particular attention to unfavorable effects occurring during blasting. One of these unfavorable effects refers to seismic activity caused ...

  • Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands

    Aleksandar Mijatović, Biljana Petrović, Ratomir Jelić, Živadin Bugarčić (2011)
    Studije u oblasti antikancerogenih karakteristika jedinjenja rutenijuma(III/II) izazivaju veliku pažnju već nekoliko godina otkako su neka od njih kao što su KP1019 (indazolijum-tetrahloridobis(H-indazol)rutenat(III)) i NAMI-A (imidazolijum) -trans-tetrahlorido(dimetilsulfoksid)indazolerutenat(III)) dostigao nivo kliničkog ispitivanja. Kompleksi rutenijuma u ​​reakciji sa molekulom DNK formiraju prvenstveno gvanin- i adenin-adukt, kao komplekse platine. Takođe, nekoliko studija ukazuje na veoma jake interakcije sa proteinima. Međutim, kompleksi Ru(III/II) pokazuju generalno manje toksične efekte od lekova platine(II).1 Proučavali smo kinetiku reakcija supstitucije kompleksa [Ru(terpi)(bipi)Cl]Cl sa biološki važnim ligandima: dimetilsulfoksidom, gvanozin-5’-monofosfatom, ...
    ... toward monofunctional ri a neeeat [Ru(terpy)(bipy)Cl]* complexes decrease in order: Tiourea>DMSO>His > 5'-GMP. * As can be seen from Fig. 3, the dominating hydrolytic complex at lower pH values is (2, -1), with maximum a concentration at pH = 7. re P eee " : ie a ‘f acts Wea i a B. K. Keppler, Dalton ...
    ... ate and L- histidine. Potentiometric titrations were carried out at 298 K in inert atmosphere using a glass electrode. For the calculations is used computation program HY PERQUAD2006.3 A | Results a Table 1. Rate constants for the substitution reactions of [Ru(terpy)(bipy)Cl]* complex with nucleophiles ...
    ... [Ru(terpy)(bipy)H,O]?* — L complexes Figure 2. Kinetic traces of the reaction between formed in a 0.1 mol/dm? NaClO, ionic medium, at 298 K. Ru(terpy)(bipy)Cl]* (2-104M) complex and 5’-GMP (3.3:103M), T= 310 K, A =380 nm log B,.qr+6 100°7)~ ogee 2 Wace oe ax se Species RelerOimasarscmedscl Ne moqenqem (p ...

  • Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases

    Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić (2021)
    Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...
    Šifove baze, Lipofilnost, RP-TLC, Organski modifikatori
    ... sorbent surface is different for different organic modifiers. The THF and ACN form a thin 250 multimolecular layer on a stationary phase, while MeOH is adsorbed in the form of a 251 monomolecular layer. This leads to a fundamentally large difference in the retention 252 mechanism of the Schiff bases ...
    ... may have a positive effect on determining lipophilicity of 243 compounds. The lipophilic properties of the investigated Schiff bases that would correspond 244 to those they have in a real environment, e.g., when passing through the cell membrane. 245 Expressed sorption of THF, where a monolayer ...
    ... Fujita. 1964. “ρ-σ-π Analysis. A Method for the Correlation of 426 Biological Activity and Chemical Structure.” Journal of the American Chemical Society 427 86(8):1616–26. 428 Hawrył, Anna M., Łukasz P. Popiołek, Mirosław A. Hawrył, Ryszard S. ͆wieboda, and Milena 429 A. Niejedli. 2015. “Chromatographic ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija
    ... g/cm³) into the light and heavy minerals. These were then fractionated by electro- magnet into: ferromagnetic, +0.25 A, A + 0.5, + 1A, A +1.75, -1.75 A. These fractions were examined under a binocular microscope using xylene as the immersion medium. Groundwater samples were collected in 2014, one sample ...
    ... monazite, zircon, biotite, titanite, apatite, rutile and other minerals. During tectonic movements, a descent of granitic blocks of the Plavna massif along a regional fault created the paleodepression with a length of 1400 m and width of 80 m (Kovačević & Gertik, 1995). 3. METHODS All analyzed ...
    ... the study area, in Jurassic sandstones and granitic rocks. One groundwater sample was taken from a borehole (covering the Jurassic sediments and granitic bedrock with a depth of 67.5 m), one from a well (7 m) and three samples from natural springs from Jurassic sediment. Based on their chemical ...

  • Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu

    Lazar Pavlović (2024)
    Cilj ovog rada je analiza stabilnosti dijafragme, predviđene kao mere za obezbeđenje dubokog iskopa od zarušavanja okolnog tla koji se izvodi na mestu buduće metro stanice “Francuska” koja je planirana u okviru prve faze, prve linije metroa u Beogradu – sekcije „Centar“. U okviru numeričke analize je izvršena analiza stabilnosti konzolne dijafragme kao i dijafragme sa ankerom – slobodno oslonjene dijafragme, kako bi se moglo napraviti poređenje dobijenih vrednosti koje se odnose na dubinu fundiranja koja je potrebna da ...
    istraživanja, metro stanica, iskop, dijafragma
    ... _— _ _ _ |_ _ _— _— _— : _7—·\\?—__7* _—A — —~ — — — —~ /x — —~ —— —— '_'– _— — — _— — _— _ _— — _— _ _— — _ — — — _— — ',_'_ _— ~_ _ I I — _ a a a —a —— —— a _ ~ a B _ _ — a g a g a g _ - _ a g a B a g _ a B a g _ M a B a B _ _ _ a B _ — a B a B _ — a g a B p - — C=177 —~ _ I' _ ~ — _ _ _— __ ...
    ... _N POP N OJ A BN ILA 200 NII ,2 N p KO IN T INK T P P II y a ——= — I y . __Z P — |ŠO I pj [+ [> ____ | I> || | || ii __C [> |[ | ALOA —— —— ALOA —— —— —— —— —a —r— —Zr— — —— —— | - i f — — @p@[ i — — | — — A 02 —a —~ —~ —a — —— — — dpg Za— a— — r — a Za— —— a— eA> a a a — a — Z—a— Za— a i | I -_— ...
    ... Geografski položaj područja.....a av | / 3.2. Geomorfološke odlike područja.... o 17 3.3. Geološka građa ferena....a a dd 1G 3.4. Hidrogeološke odlike ferena........... a danne 21 3.5. Savremeni geodinamički procesi i pojave....... n a 21 3.6. Seizmičnost ferena.......a a ddtvttNtet 22 3.7. Inž ...

  • Izbor metode otkopavanja u horizontalnim pojasima odozgo naniže na primeru ležišta Cu

    Tomislav Lazić (2024)
    Nakon brojnih geoloških i rudarskih istražnih radova, i sa površine terena i iz jame, pristupa se otkopavanju rudnog tela lociranog u centralnom delu jednog velikog ležišta bakra.Eksploatacija se obavlja u odnosu na već postojeći jamski sistem, ali i kroz novoizrađene prostorije. Za postizanje najboljih rezultata primenjena je metoda za otkopavanje rude u I eksploatacionom pojasu vrši „: Metoda otkopavanja sa zapunjavanjem otkopanog prostora odozgo naniže“.Koristi se najvećim delom dizel mehanizacija, a usklađivanjem radnih operacija postiže se veliki kapacitet na ...
    podzemna eksploatacija, bakar, otvaranje rudnika, metoda otkopavanja
    ... O O L M O a R T — O . 3. OTVARANJE LEŽIŠTA I IZRADA PODZEMNIH PROSTORIJA ... 1. SADRŽAJ 1. 2. 2.1 Položaj pružanja ležišta..........aaaa a aana a naeae a aaea a a aaeaaaeaaaaNaaaiiek 2 2.2 Opis ležišta.....c.aaaa a naa e aaa a aaaaaa a a aaaeaaaa a eaaNaaaeaaaeaaaaNaaiitivk ...
    ... 4 Istražno bušenje .........aaaaaaaaaaanaaaa a aaeaaaaaaaaaae a aaaaaaaaaaaaeaaeaaaeaaaaNaataiet & 2.5 Karakteristike ležišta...........aaa a aae a aaa e e aeaaaaaaaaaeaaeaaaaaakativk 10 2.6 Rudne rezerve al aneaaeaaeaaaaaaaaaaaaaea a a aeaaea a aa a aaaaeaaNeaaaataakativk 12 . 2.7 Kvalitet mineralne ...
    ... .c...a a a akaeaadakivk 13 . 3.1 Otvaranje ležišta ın aaaaaaaa e aaeaaaaaaaaaaeaa a aeaaaeaaeaaaaaakativk 14 . 3.2 Osnovne dimenzije i količina rude...........c....aaaa a aa a a aa e aaeaaaaaakativk 18 . 3.3 Definisanje Stepena Stabilnosti Prostorija Pripreme ....................aaaaaaa a eaaeaadaktvk ...

  • Business Models for Small-scale Biomass Projects Development

    Dejan Ivezić, Miodrag Gluščević, Marija Živković (2019)
    Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...

  • An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction

    Dejan Ćebić, Nebojša Ralević, Marina Marčeta (2020)
    нелинеарна једначина, 16.ред конвергенције, оптималне методе, подељене разлике
    ... with Newton’s method as the first step, while f [·, ·] denotes the divided difference defined by f [a, b] = f(a)−f(b) a−b . Theorem 1. Assume that function f(x) is sufficiently differentiable in a neighbor- hood of its simple root α, and let M4(·, ·) and M8(·, ·, ·) be any optimal fourth and eighth ...
    ... point y0 is named periodic with the minimal period n if fn(y0) = y0. It is evident that a fixed point is a periodic point with its minimal period being 1. Each attracting region is called the basin of attraction A(α): A(α) = {x0 ∈ C : fm(x0) → α,m → ∞}, where α is an attracting fixed point of function ...
    ... J. Džunić, Multipoint methods for solving nonlinear equations: A survey, Appl. Math. Comput. 226(2014), 635–660. [27] N.Ralević, D. Ćebić, A new optimal family of three-step methods for efficient finding of a simple root of a nonlinear equation, Math. Commun. 21(2016), 189–197. [28] M.Salimi ...

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада