Претрага

Упит dcterms_creator_txt:Tóth E.

829 items

  • 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
    ... 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 | ... P | under running ...
    ... soils of Sšo Paulo city, Brazil, Urban Environmental Pollution 2010, Procedia Environmental Sciences 4 (2011) 303—309 13. Goletić Š., Bukalo E., Trako E., 2011 - Praćenje sadržaja teškh metala u tlu i biljkama u okolini željezare u Zenici - VII Naučno-stručni skup sa međunarodnim učešćem Kvalitet ...
    ... the most is - whether heavy metals from coal contaminate the accompanying sediments above and around the coal seams layered in the deposit itself: e also provide selected examples of the presence of HM in the soil of numerous European and world cities and regions in order to compare with the con ...

  • 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

  • A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić (2012)
    This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...
    multilingual digital libraries, query expansion, TMX
    ... Multilingual Digital Libraries of E-journals Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals | Ranka Stanković ...
    ... rs A tool for enhanced search of multilingual digital libraries of e-journals Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić University of Belgrade, Serbia Studenski trg 1, 11000 Belgrade E-mail: ranka@rgf.bg.ac.rs, cvetana@matf.bg.ac.rs, ivano@rgf.bg.ac.rs, ...
    ... enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically ...

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... Management Systems – Global E-learning in a Scandinavian Perspective, NKI Forlaget, Oslo, 2003. [3] Zdravkova, K., E-learning 2.0 and its implementation, INFOtheca, Journal of informatics and librarianship, Vol. XI, No.2, pp.3-19, 2010. [4] Teresa Martin-Blas, E-learning Platforms in Physics ...
    ... postgraduate course InfoTeh. Keywords: E-Learning, Course Management, Blended Learning, Moodle 1. INTRODUCTION The role o ICT in education is growing substantially, whereas its application tends to take more and more diverse forms. Within the concept of e-learning, which can most broadly be ...
    ... a university setting | Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović | Proceedings of the Second International Conference on e-Learning, eLearning 2011, September 2011, Belgrade, Serbia | 2011 | | http://dr.rgf.bg.ac.rs/s/repo/item/0001464 Дигитални репозиторијум Рударско-геолошког ...

  • Parametri zbijanja komunalnog otpada određeni različitim laboratorijskim metodama

    Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Snežana Bogdanović (2021)
    Zbijanje komunalnog otpada predstavlja jednu od osnovnih faza korišćenja komunalne deponije. Zbog toga je kao i kod drugih nasutih građevina, veoma korisno odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). Dobijeni rezultati mogu da posluže prilikom projektovanja kapaciteta deponije kao i prilikom definisanja obradivosti otpada. U dosadašnjoj praksi najčešći način određivanja parametra zbijanja je standardna metoda (Proktorov opit) koja se koristi u mehanici tla, uz eventualnu redukciju energije zbijanja. Međutim, različiti tretmani komunalnog otpada na ...
    deponija komunalnog otpada, zbijanje, Proktorov opit, malj sa šiljcima
    ... od E, = 550 kJ/m? i Ex = 2500 kJ/m*. Na slici I prikazane зи dve serije uzoraka koje su formirane od nesagorivog komunalnog otpada. Nesagorivi otpad imao је optimalnu vlažnost wopr = 10-20 % pri maksimalnoj suvoj zapreminskoj težini od Yamax = 6 kN/m? - 8 kN/mš. = Б — =_ - uzorak B, Е=2500 ...
    ... Е=2500 kJ/mž 70 изогак C, E=550 kJ/m" Suv a za pr em in sk a tež ina Y ama x (k N/ m* ) 60 _— = 7—*\\ -; 55 uzorak B, E=550 kJ/m? ~ [ EN RTGR RRAAA EAA о 10 20 30 40 50 60 Optimalna vlažnost М/, (%) Slika 1. Prikaz rezultata Proktorovog орца га nesagoriv Котипа тт ограа (Поћ i dr ...
    ... zbijanja od E = 2700 kJ/m?, korišćenjem otpada sa maksimalnom veličinom čestica od 25 тт u cilindru prečnika 152 mm. Maksimalna suva zapreminska težina od уатах = 5.1 kN/m? postignuta је pri optimalnoj vlažnosti od Wop: = 66%. Nakon toga је četiri puta povećao energiju zbijanja na E = 10 800 kJ/m* ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Geologic Information System of Serbia

    Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović (2011)
    Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...
    Geologic information system, Conceptual model, Logical model, Implementation, Geodatabase
    ... Serbia, e-mail: bsblagojevic@yahoo.com 2 Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: btrivic@rgf.bg.ac.rs 3 Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: ranka@rgf.bg.ac.rs 4 Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: ...
    ... e-mail: olja@rgf.bg.ac.rs 5 Faculty of Mining and Geology, Kamenička 6, 11000 Belgrade, Serbia, e-mail: nenad@beotel.net http://www.seegrid.csiro.au/ http://www.isotc211.org/ Logical framework of GeolISS implementation is based on five elements: Concept, Observation, Description, Spatial entity – Features ...

  • 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
    ... Optmizaton method F 18 F e Rotahor Curvet — || |ps Tw vaarw }s lws wr rv e J Steess Tensor Load |_Mak a \;; | zz — a Wekomkt __B · H| | |oiaabaanad +| f i \ || 1 n4/4) _s|e-shu | | H} a oOs a as | ap 03 a BO 35 | _•ja[Gw — ı| es Regme | NS_ SHmax| 069— + | 71 — ig e g il o [ 424 3i mex{1Gi w ...
    ... jedinica [E Pangaion-birinska a & ioliti i one vutura X e MpdSava zona I Zapadna Vardarska zona l istočna Vardarska zona Jedinice Adrije (Dinaridi i Hclenidi) , Jadranskomore MB adar-Kopaonik _ & Drina-Ivanjica a Tstočnobosansko-durmitorska jedinica - Prekarst i Bosna fliš e Visoki krš ...
    ... | 4 | 12,4 | 0,48 | 2,00| E | Transpresija N ž“ T5b | IBD P 083/09 | 351/17 | 200/70 | 14 | IO |0,51 | 51 | C Kompresija š T8 DI To | O80/I8 | 187/41 | 333/43 | 4 2,7 | 0,50 | 2,00 | E | Transpresija Pz Š TIO DI To | 087/29 | 190/34 | 327/43 | 4 65 |0,50 | 2,00 | E | Transpresija > o š TII ...

  • Моделирање утицаја одступања линије најмањех отпора од пројектоване на интензитет потреса од минирања

    Стефан Милановић (2024)
    Према дефиницији линија најмањег отпора представља најкраће растојање од центра минског пуњења до слободне површине. Oвим истраживањем представљен је утицај линије најмањег отпора, као и њеног одступања од пројектоване на интезитет потреса услед минирања. Проблем линије најмањег отпора је веома заступљен у пракси, где се занемарује изглед слободне површине, који може бити врло неправилан. Линију најмањег отпора је потребно мерити целом дужином минске бушотине према слободној површини, иако је у пракси случај да се мери најчешће као растојање од ...
    линија најмањег отпора, 3D модел, потреси услед минирања, минирање, слободна површина, метода раздвојених елемената

  • Rule-based Automatic Multi-word Term Extraction and Lemmatization

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac (2016)
    In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...
    term extraction, terminology, multi-word units, lemmatization, finite-state transducers
    ... terminology extraction for Serbian based on e-dictionaries and local grammars. For extraction purposes 14 graphs were developed, which extract the most frequent syntactic structures identified by an analysis of several Serbian terminological dictionaries and Serbian e-dictionary of MWUs. The approach was ...
    ... outlined in this paper will by all means speed up the development of e-dictionaries, as in addition to the terminology extraction, the approach can be applied to the extraction of MWUs belonging to general lexica. Expanding the e-dictionaries will further improve systems for information retrieval ...
    ... 115-130. 513 Gelbukh, A., Sidorov, G., Lavin-Villa, E., and Chanona-Hernandez, L. (2010). Automatic Term Extraction Using Log-Likelihood Based Comparison with General Reference. In: Hopfe, C. J., Rezgui, Y., Métais, E., Preece, A., Li, H. (Eds.), Natural Language Processing and Information ...

  • Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević (2017)
    ... and precession cycles, respectively. Our results allowed calculation of the average sedimentation rate. °e average sedimentation rate was estimated as 11.4–14.2 cm/kyr for the Taman Konkian. °e duration of the Konkian can be estimated as 0.2–0.25 Myr without taking into account the sedimentation rate ...
    ... ity in the lower part of the Eastern Paratethys Konkian (MOLOSTOVSKY & CHRAMOV, 1997; GREBENYUK, 2004) relates to the Chron C5AAn/C5Ar.3r boundary. °e duration of the Kon- kian can be estimated as 0.35–0.45 Myr. °is work was ºnancially supported by the RFBR (№17-05-01085, №16-05-01032) and RSF (№1 ...
    ... Russia and the Pre-Caucasus. Unpubl. PhD °esis, Faculty of Geology, University of Saratov, 181 p. HILGEN, F.J., LOURENS, L.J. & VAN DAM, J.A. (2012): °e Neogene Period. In: GRADSTEIN, F.M., OGG, G.J., MARK, D. SCHMITZ, M.D. & OGG, G.M. (eds.): A Geological Time Scale 2012, Cambridge University Press ...

  • Lamprofiri Kolaričke reke (Boranja)

    Luka Jović (2024)
    Lamprofiri su grupa egzotičnih ultrakalijskih stena poznatih po sadrţaju nekompatibilnih elemenata i elemenata retkih zemalja. U našem delu sveta pojavljuju se u okviru ultrakalijskih provincija u Španiji, Italiji, Srbiji, Makedoniji i Turskoj. U Srbiji su zastupljeni ponajviše u zapadnim delovima zemlje, oko opština Ljubovija i Mali Zvornik, ali i u široj okolini Rudnika, Kopaonika i u istočnoj Srbiji. Mnoga ispitivanja sprovedena su u rudnom polju Veliki Majdan u zapadnoj Srbiji sa čije jugoistočne strane protiče Kolarička reka. Ovaj lokalitet ...
    geohemija, lamprofiri, ultrakalijski magmatizam, elementi retkih zemalja, mešanje magmi, mineta, kersantit, flogopit
    ... trijas 2.2.7 Srednja i gornja jura..............č. e e ek a aee a e e ae e a aaeaet e aaaattatte 5 2.2.8. Kenozoik ... ea e ee e ea e ate a aae e aie a aaeaeiaaeik iii aaaattNtee 6 2.2.9. Kvartar a ee a atae e ia e eaae a aae a e aaeaaNeae i atea e aiaaaaaatNtte 8 2.3 PREGLED RANIJIH ISTRAŽIVANJA ...
    ... P I I E C /OICCCC t6B8C8O'I OCIP/ST O6CredCC SdeCIOPC OPCE/P'O ctdrcoccC0 IcIcOPbC'0 4 918966'0 6880t6'0 t/c8060 ccIccg'O0 9C9P/6%0 /OO6I60 IPC/I60 IcPIC60 #ICIS/O -90160 /P/0680 -6/CO060 SetP/960 /6/1860 9-66896'0 b P E C C A C E CSCCIII't POOCA/'E ItcPbCI't ...
    ... A [4 “98C [24:4 O D T6'SC g g 4 4 4 [A44 i yAA T0O'8 iA :14 OSJA L23 T9'E [454 E tOtTV “EtI WA 4 60'tTI TS'ET HUy4! gctI tVO'bI tOtTV 61'9E TE?E [4%"13 :%"13 tOLL [4 954 PA A [ A T 6 b [444 es'OP 69'0P (% 3A\) “O!S 4A3 [ A ...

  • 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

  • Uslovi formiranja oticaja reke Crnice

    Andjelija Glogovac (2024)
    Sliv reke Crnice zauzima područje centralnog dela Srbije, između opštine Paraćin na zapadu, Sisevačkog basena na istoku, sliva Ravanice na severu i Jovaničke reke na jugu.Režimski parametri sliva reke,površine od 289 km2 kontrolišu se na hidrološkoj stanici Paraćin, dok su sa ciljem analize režima i uticaja padavina na formiranje oticaja preuzeti podaci o padavinama sa meteorološke stanice Ćuprija.Na razmatranom području dominantnu ulogu ima karsni tip izdani, koga karakteriše nestabilan režim u u pogledu oscilacija izdašnosti i nivoa podzemnih voda ...
    režim voda, autokorelacija, kroskorelacija, bilans voda, klimatske promene, reka Crnica
    ... 4.73 136 8.70 30.20 1,33 2.40 488 150 1.26 0.20 1.1%6 3,30 762 30.20 1.96 20 10.00 U e o o o o o o o o o e e e c e e o e o e o . s o e a ii o — o J ~ u a – {S/EUu) O I{[e2naoJd I[usipo8 a[upaJc [441}4 810 tbTOC 0107 ...
    ... 6 0 0 0 0 4 8 5 0 0 0 0 7531000 Geološka karta istražnog pordručja 7540000 1:140.000 7549000 7558000 7567000 e e e e ~ - ~ e e e e o - ~ Km |. e l H o 7531000 7540000 7549000 7558000 7567000 3 Naziv rada: Uslovi formiranja oticaja reke Cmice Autor |Anđelija ...
    ... (Qsr) Slika 8.1. Dijagram srednje godišnih proticaja reke Crnice, v.s. Paraćin 180 3 160 • + 2.5 140 ___120 e 2 _ d • e š« 100 i = zl |l r |7 Š š • Qaps,max e Qaps,min Slika 8.2. Apsolutne maksimalne i minimalne vrednosti proticaja reke Crnice, v.s. Paraćin, zabeležene tokom ...

  • 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

  • Paleomagnetic evidence for post-collisional Miocene clockwise rotation in the Serbian segment of the Vardar Zone and the Danubicum

    Vesna Lesić, Emő Márton, Vesna Cvetkov, Dragana Tomić (2015)

  • Production of morphological dictionaries of multi-word units using a multipurpose tool

    Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas (2011)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion
    ... e ’ Case = ‘1 ’ Anim= ‘$ a ’ Gen= ‘$ g ’ /> e ’ Case = ‘1 ’ Anim= ‘=$ a ’ Gen= ‘=$g /> e l o v a k u l a ’>
    ... = ‘ l u k a v kao l i s i c a ’> e ’ Case = ‘1 ’ Num= ‘ s ’ Gen= ‘m’ /> e ’ Cond = ‘= , kao ”/> e ’ Case = ‘1 ’ Num= ‘ s ’ Anim= ‘ v ’ /> Fig. 5. ...
    ... technology. Serbian e-dictionaries of simple forms have reached a considerable size: they have a total of more than 126,000 lemmas [4] generating more than 4.3 million forms. Unitex official web site contains a comprehensive list of references related to the production and usage of e-dictionaries for ...

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Tektonska evolucija severoistočnih Dinarida

    Nikola Ranđelović, Branislav Trivić, Nemanja Krstekanić, Bojan Kostić, Uroš Stojadinović (2022)
    ... opening of the Pannonian Basin. The ductile structural pattern related to this extensional phase is characterized by dominant E- dipping S3 foliation. Moreover, a top to E ductile shear zone with quartz sigma clasts is observed on the eastern slopes of the Bukulja Mts. In contrast to the ductile ...
    ... loški fakultet, Djušina 7, 11000 Beograd, Srbija; 2Utrecht University, Faculty of Geosciences, Princetonlaan 4, 3584CD Utrecht, The Netherlands; E-mail: nikola.randjelovic@rgf.bg.ac.rs Ključne reči: Konvergencija Adrije i Evrope, Unutrašnji Dinaridi, ekstenzija Panonskog basena, strukturna ...
    ... Mining and Geology, Djušina 7, 11000 Belgrade, Serbia; 2Utrecht University, Faculty of Geosciences, Princetonlaan 4, 3584CD Utrecht, The Netherlands; E-mail: nikola.randjelovic@rgf.bg.ac.rs Keywords: Adria-Europe convergence, Internal Dinarides, Pannonian Basin extension, structural analysis ...

  • Језички модели, шта је то?

    Ми­ха­и­ло Шко­рић (2023)
    Језички модели