Претрага
4782 items
-
Zbirka rešenih zadataka iz mehanike tla
Dragoslav Rakić (2018)Dragoslav Rakić. Zbirka rešenih zadataka iz mehanike tla, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2018
-
Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)
Structural and microstructural properties of TiO2-based nanocomposites with carbon black (C), synthesized by sol-gel-hydrothermal method, have been studied by XRPD and Raman scattering. Detailed size-strain analyses of XRPD and Raman scattering results are presented in order to investigate the influence of C content on brokite and anatase phase formation. The XRPD size-strain analyses have resulted in reliable structure and microstructure results for both anatase and brookite and their relative abundance ratio has been refined by Rietveld method. The brookite ...Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Maja Šćepanović. "Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)" in The European Powder Diffraction Conference (EPDIC) Book of Abstracts, Šibenik, 31 May - 3 June 2022, EPDIC (2022)
-
Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia
Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković (2022)Regional geochemical research of residual soil was conducted in an area of about 20,000 km2 in the region of Central and Western Serbia, where six metallogenetic zones and mining since ancient times have been documented. The geochemical background variation in the residual soil was established upon the contents, spatial pattern and natural background of potentially toxic elements (PTEs). The limits of natural background values (mg·kg-1) were determined by the integral method. Our data show that anomalous concentrations of As, ...Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković. "Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia" in Periodico di Mineralogia (2022). https://doi.org/10.13133/2239-1002/17042
-
Transformer-Based Composite Language Models for Text Evaluation and Classification
Parallel natural language processing systems were previously successfully tested on the tasks of part-of-speech tagging and authorship attribution through mini-language modeling, for which they achieved significantly better results than independent methods in the cases of seven European languages. The aim of this paper is to present the advantages of using composite language models in the processing and evaluation of texts written in arbitrary highly inflective and morphology-rich natural language, particularly Serbian. A perplexity-based dataset, the main asset for the ...Mihailo Škorić, Miloš Utvić, Ranka Stanković. "Transformer-Based Composite Language Models for Text Evaluation and Classification" in Mathematics, MDPI AG (2023). https://doi.org/10.3390/math11224660
-
Pećina Peštera kod Laznice - primer razvića speleoloških objekata u zoni raseda (rasednoj breči)
Mihajlo Mandić, Ana Mladenović (2022)Pećina Peštera se nalazi istočno od sela Laznica kod Žagubice. Iako lako pristupačna za posetioce i istraživače, do sada nije bila predmet detaljnijih istraživanja. Pominje se samo u prikazu arheološki interesantnih objekata okoline Žagubice, ali sa svedenim i uglavnom netačnim podacima o morfološkim karakteristikama. Speleološki značaj joj daje, pored relativno velikih dimenzija dvorane, njen razvoj u tektonski veoma oštećenoj zoni ukrštanja dva raseda što za posledicu ima potpunu dezintegraciju stenske mase u breču. Proces karstifikacije breče formira specifične morfološke ...Mihajlo Mandić, Ana Mladenović. "Pećina Peštera kod Laznice - primer razvića speleoloških objekata u zoni raseda (rasednoj breči)" in Zbornik 9. Simpozijuma o zaštiti karsta, Beograd : Akademski speleološko-alpinistički klub (2022)
-
Primena termografije u rudarstvu
Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragan Ignjatović, Dragutin Jovković, Filip Miletić (2019)Danas, gotovo da nema oblasti u nauci i tehnici u kojoj se Infracrvena termografija ne primenjuje kao metoda za lociranje i praćenje zagrejanih objekata ili tela, beskontaktnu procenu temperature površina, i nedestruktivno ispitivanje materijala. U radu su prikazane mogućnosti i perspektive primene ove metode u oblasti rudarstva.... Key words: infrared thermography, mining, monitoring 1. Uvod Termografija, kao oblast nauke koja se temelji na zakonima zračenja a koja se bavi vizualizacijom toplotne slike svega što nas okružuje, sve više dobija na značaju [1]. Izuzetno je teško nabrojati sve mogućnosti primene infracrvene ...
... se pratiti i fiksnom i 60 ručnom termografskom kamerom. Tipični termogrami mašina na površinskom kopu prikazani su na Slici 1 i Slici 2. Slika 1. Termogram bagera kašikara na površinskom kopu [14] Slika 2. Termogram kamiona (kamionski transport) na površinskom kopu [15] ...
... CONFERENCE COAL 2019 Zlatibor, 23-26 October 2019 PRIMENA TERMOGRAFIJE U RUDARSTVU APPLICATION OF THERMOGRAPHY IN MINING Đenadić S.1, Damnjanović V.2, Jovančić P.3, Ignjatović D.4, Jovković D.5, Miletić F.6 Apstrakt Danas, gotovo da nema oblasti u nauci i tehnici u kojoj se ...Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragan Ignjatović, Dragutin Jovković, Filip Miletić. "Primena termografije u rudarstvu" in IX Međunarodna konferencija UGALJ 2019, Zlatibor, Srbija, 23-26. oktobar 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
-
Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... bulk overburden material is 40-50 m. The area belongs to “Drmno” open pit is in the eastern part of the Kostolac coal basin, 1.e., east of the Mlava River. (Figure 1) igure 1. Location of study area - Drmno The Kostolac mining and energy basin is part of the municipality of Kostolac and the Braničevo ...
... of the area in the phase of closing the surface mine. 254 Table 1 shows comparison of the methods that can be applied to select the purpose of the terrain after reclamation, their feature, advantages and disadvantages. Table 1. Comparison of methods which can be used for choosing a recultivation ...
... completion of reclamation and closure of the coal mine. Keywords: recultivation, reclamation, revitalisation, coal mining, sustainable development 1. INTRODUCTION Mining activity has a large-scale impact on the environment. Coal mining has been quite pronounced considering the topographical changes ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
-
Geneza i uslovi cirkulacije voda kompleksnih karstnih sistema Kučajsko-Beljaničkog masiva
Ljiljana M. Vasić (2017-07-14)postupaka koji je primenjen u cilju definisanja zona prihranjivanja i veze izmeđupodzemnih i površinskih voda, vremena koje voda provede u podzemlju, pri čemu seformira jedinstven hemijski sastav i temperaturni režim isteklih voda, bili su polaznaosnova za usmerenje na istraživanje karsta i definisanje teme doktorske disertacije.Kučajsko-beljanički masiv se nalazi u istočnoj Srbiji i pripada oblasti Karpatobalkanskogluka i idealan je poligon za istraživanje, obzirom da se u okviru njega nalazejaka karstna vrela i pojave toplih karstnih izvora na relativno malom rastojanju, ...karstni sistemi, geneza podzemnih voda, izotopske metode, starost voda,hidrogeohemijski procesi, dubina cirkulacije podzemnih voda, subtermalne i termalnevode... Februar Mart April Oktobar Decembar 1 7 37 2 7 36 1 3 6 36 8 5 4 4 37 11 10 5 4 37 14 10 6 2 38 14 10 7 1 36 9 10 8 1 30 7 9 9 0 24 3 9 10 19 4 30 11 11 6 42 12 7 4 38 13 5 1 36 14 4 35 15 0 34 16 0 1 31 17 1 18 26 18 14 20 19 18 ...
... jednačinom (1), a odnos molova (Ca2++Mg2+)/HCO3 - iznosi 1:2 (slika 8.8.). (Ca1-x Mg)CO3+H2O+CO2→(1-x)Ca2++xMg2++2HCO3 -(1) U slučaju rastvaranja karbonata azotnom ili sumpornom kiselinom, važe jednačine (2) i (3), a kada odnos molova (Ca2++Mg2+)/HCO3 - u oba slučaja iznosi 1:1. Kako na se ...
... 2.4 0.6 0 0.1 0 23 1 5.5 0 0 0.5 0.1 0 7 0 11.1 4 0 24 10.1 3.2 0 0 6.9 0 0 1 0.1 1 7.1 0 25 7.3 0.8 0.1 0 19.2 3.5 0 0.2 0 0 13.9 0 26 2 6.6 1.1 0 25 2.5 0 0.2 3.9 0 7.9 0 27 0.3 8 0 0 0.5 7.6 0 0.3 0.3 0 2.7 0 28 4.8 0.2 13 0 6.7 0.1 1 0 12.6 0 13.3 0 29 0.1 4.2 10 0 0 1 0 2.1 0 0.5 0 30 0 ...Ljiljana M. Vasić. "Geneza i uslovi cirkulacije voda kompleksnih karstnih sistema Kučajsko-Beljaničkog masiva" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2017-07-14)
-
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... pad padine dubina preneogene podloge 0 1 2 3 4 5 6 7 8 km 4 3 3 3 3 4 5 5 6 6 2 2 2 2 1 2 2 2 2 2 0 2 2 2 2 2 2 2 2 2 2 1 1 1 2 1 1 1 1 2 2 1 1 1 1 1 0 0 2 2 1 56 6 5 4 4 4 3 3 32 4 2 1 1 1 1 1 2 1 1 1 3 3 3 2 3 3 7 Dunav D un av ...
... , Miozän der Zentralen Paratethys, v. 1, p. 1–312. Cicha, I., F. Rögl, C. Rupp, and J. Ctyroka, 1998, Oligocene – Miocene foraminifera of the Central Paratethys, Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, v. 549, p. 1–325. Cicha, I., F. Rögl, and J. Ctyroka ...
... Intra‐Carpathian area: a review, Acta Vulcanologica, v. 7, p. 1–13. Csontos, L., and A. Vörös, 2004, Mesozoic plate tectonic reconstruction of the Carpathian region, Palaeogeogr., Palaeocl., Palaeoecol., v. 210(1), p. 1–56, doi:10.1016/j.palaeo.2004.02.033. Csontos, L., A. Nagymarosy ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
-
Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia
Biljana Abolmasov, Uroš Đurić (2021)... showed also very good correlation in vectors azimuth (for the period 2018-2019) (Figure 1). PROCEEDINGS OF 3RD EUROPEAN REGIONAL CONFERENCE OF IAEG/ ATHENS/ GREECE/ 6-10 OCTOBER 2021 - 244 - Figure 1. A) GNSS monitoring data (2014-2018); B) PSInSAR monitoring data (2016-2019); Displacement ...
... CONFERENCE OF THE INTERNATIONAL ASSOCIATION FOR ENGINEERING GEOLOGY & THE ENVIRONMENT Leading to Innovative Engineering Geology Practices VOLUME 1 Extended Abstracts Proceedings Organised by the National Group of Greece of IAEG PROCEEDINGS OF 3RD EUROPEAN REGIONAL CONFERENCE OF IAEG/ ATHENS/ ...Biljana Abolmasov, Uroš Đurić . "Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia" in 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, IAEG National Group Greece (2021)
-
Испитивање магнетске сусцептибилности прашине антропогеног порекла
... na vertikalnoj osi prikazuju prividnu magnetsku susceptibilnost (10-6 SI) a brojevi na horizontalnoj osi (1-7) dane u nedelji (ponedeljak - nedelja) U podacima iz Novog Sada (Slika 1, levo) postoji nedeljna tendencija manjeg magnetskog zagađenja nedeljom nego radnim danima, osim tokom septembra ...
... delovima atmosfere. Većina primarnih zagađujućih jedinjenja, uključujući i suspendovane čestice (particulate matter – PM) su posledica ljudskih aktivnosti [1]. Postoji određena vrsta povezanosti teških metala sa magnetskom susceptibilnošću , tj. merenja mogu se koristiti kao indikator zagađenja i teškim ...
... m, zapreminsku V i molarnu mol, koje su definisane sledećim jednačinama, respektivno: V m mol m mol M V H , (1) gde je M – magnetizacija, - gustina a Vmol – molarna zapremina. Uprkos široko rasprostranjenoj upotrebi, je složeni parametar koji odražava doprinos ...Дубравка Новичић, Весна Цветков, Весна Дамњановић. "Испитивање магнетске сусцептибилности прашине антропогеног порекла" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
-
Numerical modeling of Selanac debris flow propagation using SPH code
The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...... such example is Selanac debris flow, which stands among the largest occurrence of this type of landslides recorded in Serbia, recently (Fig. 1). Figure 1 A) UAV image of main scarp B) UAV image of transportation zone The Selanac debris flow is a complex flow type landslide phenomenon, firstly ...
... mass of granular material down a rough incline’’. Journal of Fluid Mechanics 199 (1): 177-215. Takahashi, T. (2007). ‘’Debris Flow: Mechanics, Prediction and Countermeasures’’. Annual Review of Fluid Mechanics 13 (1): 57-77. Zienkiewicz, O.C., Shiomi, T. (1984). ‘’Dynamic behavior of saturated ...
... e the deposition depth and run-out distance. SCG-XIII INTERNATIONAL SYMPOSIUM ON LANDSLIDES. CARTAGENA, COLOMBIA- JUNE 15th-19th-2020 1 INTRODUCTION Debris flows occur usually after saturated, mainly poorly sorted material, started to flow down the slope as a result of motion of solid ...Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi . "Numerical modeling of Selanac debris flow propagation using SPH code" in SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics And Geotechnical Engineering (2021)
-
Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental ChemistryLjiljana Vasić, Laszlo Palcsu, Huang Fen. "Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8294-0
-
Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost
Ljiljana Karanović (2024)Ljiljana Karanović. Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
-
A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment
Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...... Fr eq ue nc y 1 5 10 50 100 500 1 2 3 4 5 >5 Basque Bulgarian Danish Dutch English (KD) English (NUIG) Estonian German Hungarian Irish Italian Serbian Slovenian (JSI) Slovenian (ISJFR) Spanish Portuguese Russian Number of senses Fr eq ue nc y 1 5 10 50 100 500 1 2 3 4 5 >5 Basque ...
... Evaluation, pages 1678–1683. A. P. Evgenyeva, editor. (1999). Dictionary of the Russian Language, volume 1-4. Russkiy yazyk. Ken Farø, et al., editors. (2003). Den danske ordbog, bd. 1-6, volume 1-6. Gyldendal. https://ordnet.dk/ddo en. Fellbaum, C. (2010). WordNet. In Theory and applica- tions of ...
... (123) 1170 (11543) Dicionário da Lı́ngua Portuguesa Contemporânea 285 (4060) 58 (686) 110 (1287) 9 (143) 1 (9) 463 (6185) Portuguese Dicionário Aberto 199 (1521) 53 (203) 67 (372) 3 (15) 1 (5) 323 (2116) Ozhegov-Shvedova 258 (2038) 109 (615) 101 (533) 15 (77) 44 (368) 527 (3631) Russian Dictionary ...Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others . "A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment" in Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), Marseille, European Language Resources Association (ELRA) (2020)
-
Witness of the history: A hundred years old the geological hammer of Jovan Zujovic
Ljupko Rundić (2021)Током обележавања тридесет година постојања и рада Српског геолошког друштва 10. фебруара 1921. године, у знак великог поштовања према академику Јовану Жујовићу, председнику и оснивачу Српског геолошког друштва и српске геолошке школе, чланови СГД поклонили су му јединствени геолошки чекић са угравираном посветом и својим потписима. Током протеклих стотину година, многе генерације геолога проналазиле су инспирацију гледајући чекић и делећи ову причу с великим пијететом. Данас, када геолози посећују Спомен собу геологије (Рударско-геолошки факултет, ул. Каменичка бр. 6), где се пажљиво ...Ljupko Rundić. "Witness of the history: A hundred years old the geological hammer of Jovan Zujovic" in Annales Geologiques de la Peninsule Balkanique, National Library of Serbia (2021). https://doi.org/10.2298/GABP210607004R
-
Geostatički proračuni
Gordana Hadži-Niković (2020)Gordana Hadži-Niković. Geostatički proračuni, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2020
-
Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia
Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analizeMarina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić. "Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00563-y
-
Constitutive Model for Analysis of Long-Term Municipal Solid Waste Landfill Settlement
Irena Basarić Ikodinović, Dragoslav Rakić, Mirjana Vukićević, Sanja Jocković, Jovana Janković Pantić (2022)Large long-term settlement occurs at the municipal solid waste landfills over an extended period of time which may lead to breakage of the geomembrane, damage of the cover systems, other protective systems or facilities constructed on top of a landfill. Also, municipal solid waste is an extremely heterogeneous material and its properties vary over location and time within a landfill. These material characteristics require the formulation of a new constitutive model to predict the long-term settlement of municipal solid ...Irena Basarić Ikodinović, Dragoslav Rakić, Mirjana Vukićević, Sanja Jocković, Jovana Janković Pantić. "Constitutive Model for Analysis of Long-Term Municipal Solid Waste Landfill Settlement" in ICEG 2022: International Conference on Environmental Geotechnics, World Academy of Science, Engineering and Technology (2022)
-
Parallel Stylometric Document Embeddings with Deep Learning Based Language Models in Literary Authorship Attribution
This paper explores the effectiveness of parallel stylometric document embeddings in solving the authorship attribution task by testing a novel approach on literary texts in 7 different languages, totaling in 7051 unique 10,000-token chunks from 700 PoS and lemma annotated documents. We used these documents to produce four document embedding models using Stylo R package (word-based, lemma-based, PoS-trigrams-based, and PoS-mask-based) and one document embedding model using mBERT for each of the seven languages. We created further derivations of these ...Mihailo Škorić, Ranka Stanković, Milica Ikonić Nešić, Joanna Byszuk, Maciej Eder. "Parallel Stylometric Document Embeddings with Deep Learning Based Language Models in Literary Authorship Attribution" in Mathematics, MDPI AG (2022). https://doi.org/10.3390/math10050838