Претрага
4782 items
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Keyword Extraction from Parallel Abstracts of Scientific Publications
... Rijeka for the support under the LangNet project (13.13.2.2.07). References 1. Beliga, S., Meštrović, A., Martinčić-Ipšić, S.: An overview of graph-based keyword extraction methods and approaches. J. Inf. Organ. Sci. 39(1), 1–20 (2015) 2. Mihalcea, R., Tarau, P.: TextRank: bringing order into texts. ...
... measures) of the nodes in a network for the extracting and ranking of keyword candidates [1]. The selectivity-based keyword extraction method is a network-enabled method for keyword extraction which consists of two phases: (1) keyword extraction and (2) keyword expansion. The node selectivity value is cal- ...
... 2012 Workshop, pp. 1–13 (2012) 7. Kozłowski, M.: PKE: a novel Polish keywords extraction method. Pomiary Autom. Kontrola 60(5), 305–308 (2014) 8. Beliga, S., Meštrović, A., Martinčić-Ipšić, S.: Selectivity-based keyword extraction method. Int. J. Sem. Web Inf. Syst. (IJSWIS) 12(3), 1–26 (2016) http://www ...Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić . "Keyword Extraction from Parallel Abstracts of Scientific Publications" in Sematic Keyword-Based Search on Structured Data Sources - Third International KEYSTONE Conference, IKC 2017 Gdańsk, Poland, September 11–12, 2017 Revised Selected Papers and COST Action IC1302 Reports, Springer (2017)
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Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method... the ash and slag. Sample humidity was examined according to the standard EN 1328-1, the solid particles volume weight test followed the standard EN 1097-7, grain size composi- tion was tested according to EN 933-1, EN 451-2 and SRPS U. B1.018., and the pH value test was done according to SRPS H. C8 ...
... R module is: 2 3 2 3 ( ) ( ) SiO AlO R CaO MgO Fe O + = + + (1) According to the size of the module R, the fly ash can be clas- sified as silica-calcium (R<2), silicate (R = 2–6) or aluminum- silicate (R>6). Table 1. Physical properties of �y ash and slag. No. humidity of the sample (w) ...
... of Niš, 38 p. EN 451-2 (1994): Method of testing fly ash – Part 2: Determination of fineness by wet sieving. EN 933-1 (1997): Tests for geometrical properties of aggregates – Part 1: Determination of particle size distribution – Sieving method. EN 1097-7 (1999): Tests for mechanical and physical ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
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Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry
Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalizationSteven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti. "Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945979
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Proučavanje razvića Bihaćkog i Cazinskog basena primenom gravimetrijskih podataka
Bihaćki i Cazinski baseni su neogeni baseni, koji pripadaju spoljašnjim Dinaridima i formirani su tokom kasne faze razvoja Dinarida. Ovi baseni su od posebnog interesa zbog svoje geološke prošlosti i potencijalnih strukturnih karakteristika. U istraživanju, primenjeni su gravimetrijski podaci u clju boljeg razumevanja evolucije ovih basena. Primenom različitih postupaka matematičkih transformacija na gravimetrijskim podacima može se ustanoviti gravitacioni uticaj neogenih basena male gustine i mogu se detektovati strukture, koje su potencijalno vezane za njihovo formiranje. U ovom istraživanju, analiza ...Snežana M. ignjatović, Ivana M. Vasiljević, Nevena R. Andrić-Tomašević, Ana S. Mladenović. "Proučavanje razvića Bihaćkog i Cazinskog basena primenom gravimetrijskih podataka" in Tehnika, Beograd: Savez inženjra i tehničara Srbije (2024). https://doi.org/10.5937/tehnika2403287I
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Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... Fan-shaped distributed fibrous talc between the closely mingled olivine crystals Табела 1. Хемијски састав талка и структурна формула на бази 11(О) Tabela 1. Composition of talc and structural formulae based at 11(O) 1 2 SiO2 62.23 59.71 FeO 0.55 0.79 MgO 31.13 29.93 Σ 93.91 90.43 Si 3.995 3.986 ...
... комплекса Маљена и Сувобора, који су изграђени претежно од харцбургита. 17 Слика 1. Пројекција бушотине 330А/18. Детаљ са геолошке карте лежишта Рудник (DJOKOVIĆ et al., 2014). Figure 1. Projection of the borehole 330A/18. Detail from the geological map of the Rudnik deposit (DJOKOVIĆ ...
... индикатори близине киселих магматских стена? Серпентинисани перидотити то свакако нису. 1 Универзитет у Бeограду, Географски факултет, Студентски трг 3/III, Београд, Србија; University of Belgrade, Faculty of Geography, Studentski trg 3/III ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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Correlation of metabasic rocks from metamorphic soles of the Dinaridic and the Western Vardar zone ophiolites (Serbia) : three contrasting pressure-temperature-time paths
Срећковић Батоћанин Даница, Васковић Нада, Матовић Весна, Гајић Виолета. "Correlation of metabasic rocks from metamorphic soles of the Dinaridic and the Western Vardar zone ophiolites (Serbia) : three contrasting pressure-temperature-time paths" in Геолошки анали Балканског полуострва = Annales geologiques de la Peninsule Balkanique no. 73, Belgradе:Department of Geology and Department of Palaeontology, Faculty of Mining and Geology, University of Belgrade (2012): 61-85. https://doi.org/10.2298/GABP1273061S
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Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co
Polovina Dragan, Ivković Slobodan, Ignjatović Dragan, Tanasijević Miloš. "Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co" in Integritet i vek konstrukcija - Structural Integrity and Life 10 no. 1, Beograd:Društvo za integritet i vek konstrukcija i Institut IMS - Society for Structural Integrity and Life & IMS Institute (2010): 31-41. https://doi.org/620.169.1:621.879.48
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The origin of Mg sulphate and other salts formed on pure calcium carbonate substrate - Tufa stone blocks built into the Gradac Monastery, Serbia
Erić Suzana, Matović Vesna, Kremenović Aleksandar, Colomba Philippe, Srećković- Batoćanin Danica, Nešković Marina, Jelikić Aleksa (2015)Erić Suzana, Matović Vesna, Kremenović Aleksandar, Colomba Philippe, Srećković- Batoćanin Danica, Nešković Marina, Jelikić Aleksa. "The origin of Mg sulphate and other salts formed on pure calcium carbonate substrate - Tufa stone blocks built into the Gradac Monastery, Serbia" in Construction and Building Materials no. 98, :Elsevier (2015): 25-34. https://doi.org/10.1016/j.conbuildmat.2015.08.
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New insights on the geochemical affinity and age of mineralized rocks in Timok magmatic complex, East Serbia
Miloš Velojić, Dina Klimentyeva, Quadt von, Marcel Guillong, Frank Melcher, Thomas Meisel, Dejan Prelević (2023)Miloš Velojić, Dina Klimentyeva, Quadt von, Marcel Guillong, Frank Melcher, Thomas Meisel, Dejan Prelević. "New insights on the geochemical affinity and age of mineralized rocks in Timok magmatic complex, East Serbia" in Geološki anali Balkanskoga poluostrva, Beograd : Srpsko geološko društvo (2023). https://doi.org/10.2298/GABP230330004V
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Basalt-polyester hybrid composite materials for demanding wear applications
Faisal Abusahmin, Ahmed Algellai, Nataša Tomić, Marija Vuksanović, Jelena Majstorović, Tatjana Volkov-Husović, Vladimir Simić, Radmila Jančić-Heinemann, Marinko Toljić, Jovan Kovačević (2020)Faisal Abusahmin, Ahmed Algellai, Nataša Tomić, Marija Vuksanović, Jelena Majstorović, Tatjana Volkov-Husović, Vladimir Simić, Radmila Jančić-Heinemann, Marinko Toljić, Jovan Kovačević. "Basalt-polyester hybrid composite materials for demanding wear applications" in Science of Sintering, National Library of Serbia (2020). https://doi.org/10.2298/SOS2001067A
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English for Geology Students 2 - Dyslexia friendly
Lidija Beko (2023)Lidija Beko. English for Geology Students 2 - Dyslexia friendly, Belgrade : The Faculty of Mining and Geology, 2023
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Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance
Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography... Sample SCG 50, Scale bar= 1 mm. b — Enlargement of 1. The radiolarians are recrystal- lized and occur as microquartz. The matrix is not completely slicified, in places the muddy matrix is still preserved and therefore the preserva- tion of the radiolarians is moderate. Scale bar= 1 mm. e — Bioturbated ...
... contains a mixture of blocks of 1) oceanic crust, 2) Middle and Upper "Triassic ribbon radiolarites, and 3) open marine limestones from the continental slope. On the basis of this composition we can conclude that the Upper Triassic radiolarite clasts derive cither from 1) the younger parts of the sedimentary ...
... microquartz. Sample SCG 51, Scale bar=1 mm. d — Completely slicificd greyish radiolarite. The radiolarians occur as microquartz and are visible only as ghosts in the thin section. The preservation of the radiolarians is still rather good. Sample SCG 52, Scale bar=1 mm. deposition on oceanic crust) ...Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović. "Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance" in Geologica Carpathica (2017)
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia
The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...Jelka Krušić , Biljana Abolmasov, Miloš Marjanović. "Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia" in Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-60706-7_25
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BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations
Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina. "BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations" in 17th International Conference of the open and underwater mining of minerals, Sts. Constantine and Helena Resort, Varna, 18-22 September, Bulgaria, Sofia, Bulgaria : Scientific and Technical Union of Mining, Geology and Metallurgy, (2023)
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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 ...... šiljcima prikazane su na slici 9. о | | 0-1 pre izvođenja opita — — U-I nakon izvođenja opitaj a — 98 ||——U-?Preizvođenja opita 1 ; % љо | | — U-akomizvođenja opitaj ! ı -88 . з % e — || = Ћ %|-- J —+ =- || i < 8 4 з0 # ' [ 20 10 } o — 0.01 о 1 10 100 prečnik sitinih о D (mm) Slika ...
... SRBIJE UDK: 624(059) ISSN 0352-2733 COBISS.SR – ID 43031 GRAĐEVINSKI KALENDAR 2020 Građevinski kalendar, Vol. 52 Beograd, mart 2021, p. 1-1Х, 1-67 Јоуапа Janković Pantić, dipl. inž. geol.! Prof. dr Dragoslav Rakić, dipl. inž. geol.? Irena Вазатте Ikodinović, dipl. inž. građ.ž Tina Đurić ...
... konačnog odlaganja (Tabela 1). Ропоупа upotreba komunalnog otpada uticala је na povećanje maksimalne suve zapreminske težinc i optimalnc vlažnosti, odnosno da је vlažni deo Proktorove krive za više puta zbijani komunalni otpad, znatno БИЖ liniji (krivi) zasićenja [4]. Тађеја 1. Рагатет zbijanja komunalnog ...Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Snežana Bogdanović . "Parametri zbijanja komunalnog otpada određeni različitim laboratorijskim metodama" in Građevinski kalendar, Savez građevinskih inženjera Srbije (2021)
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The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines
In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval... on the following content: Sastojci za 10 porcija: 3 glavice crnog luka, 1 šoljica ulja, 1/2 čaša belog vina, 1 čaša soka od paradajza (The ingredients for 10 portions: 3 onions, 1 cup of oil, ½ glass of white wine, 1 glass of tomato juice.) This false retrieval occurs because two constituents ...
... The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines Cvetana Krstev 1 , Ranka Stanković2 , Duško Vitas 3 , Ivan Obradović4 1 professor, Faculty of Philology, Belgrade, 2 assistant, Faculty of Mining and Geology, Belgrade 3 professor, Faculty of ...
... these examples show that the number of documents obtained through a query by using our approach can double and even quadruple in some cases. 1. Introduction When delivering a query to a web search engine the user is typically interested in information available on the web related to a ...Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan. "The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines" in LREC 2008: Conference on Language Resources and Evaluation, Marrakesh, Morocco, May 2008, European Language Resources Association (ELRA) (2008)
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Верификација етажних транспортера на угљеном систему – површински коп Дрмно
Тамара Андрејевић (2024)У савременом рударству, површински копови угља наилазе на различите проблеме које треба превазићи зарад добијања потребне количине угља. Као највећи потрошачи овог енергента јављају се термоелектране, где на основу овога можемо да закључимо колико су блиско повезани добра и континуирана производња на површинском копу и рад термоелектрана. Са циљем да се обезбеди стабилна и континуирана производња, потребно је да се направи добар одабир транспортера. У овом раду, за потребе верификације затезне чврстоће траке и снаге погона транспортера, коришћен је ...... E-\NastavaiZavrsni radov\Tamara Ancrejovic\Proracun HolodU 1 1>mi rN Helix Ver60231 Licenced to University of Belgrade: Technologies. Cauka 37. T enepannu u3geuumaj o mpaHcnopmepy 57 20 Mar 2024 13:53 Belt Details Report Page 1/1 Rudarsko-geoloski fakultet Project Zavrsni rad Client Project ...
... Dinamički NPV — I u povlati II uglj sloja ,k1 Dinamički NPV u podini il uglj sloja LEGENDA uuu [C-} peskovisa =1"10" do 1'10* ms BB aodisak=1*00* do 5730 E peskovisah=1"10* w 1500m |__KM lw ) rema verikaba r Cnuka 2. Ifeamusosanu xuopozeonouku npodun IK /{[puna ca kouuenmow oo6ootbasatba ...
... 0OHJaMO HaTe Cy JLaJbe y TEKCTy y BHJIy CJIHKa 37 Jo 39. 20 Mar 2024 13:53 Conveyor Design Summary Page 1/1 Project Zavrsni rad Client Project No Prepared By _ Tamara Andrejevic ConveyorNo. U--1 Design Date 20 March 2024 [7] Conveyed Material Material Description Ugalj Drmno Surcharge Angle ...Тамара Андрејевић. Верификација етажних транспортера на угљеном систему – површински коп Дрмно, 2024
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Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate
Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević. "Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate" in Marine and Petroleum Geology, Elsevier Ltd. (2021). https://doi.org/10.1016/j.marpetgeo.2021.105470