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1604 items

  • Recycling of coal ashes from Serbian Nicola Tesla Power Plant

    Marinković Slobodanka, Trifunović Prvoslav, Tokalić Rade, A. Kostić-Pulek (2011)

  • New Language Models for South Slavic Languages

    Mihailo Škorić (2024)
    Izlaganje će predstaviti izazove i perspektive modelovanja južnoslovenskih jezika, sa posebnim osvrtom opšte jezičke modele građene na arhitekturi transformera (BERT, GPT), na dostupne skupove tekstova za obučavanje tih modela, te kvantitet i kvalitet tih skupova. Izlaganje će ponuditi pregled dostupnih skupova i modela, dok će posebna pažnja biti posvećena najnovijim korpusima tekstova. Prvi korpus, Kišobran, predstavlja krovni veb korpus južnoslovenskih jezika i ujedno trenutno najveći korpus tekstova na našim prostorima koji broji preko osamnaest milijardi reči i uključuje sve ...
    veliki korpusi teksta, jezički modeli, južnoslovenski jezici

  • Social-Emo.Sr: Emotional Multi-Label Categorization of Conversational Messages from Social Networks X and Reddit

    Milena Šošić, Ranka Stanković, Jelena Graovac (2024)
    U digitalnom okruženju južnoslovenskih jezika, analiza emocija u tekstovima na društvenim mrežama postaje sve važnija za razumevanje javnog mnjenja, kreiranje personalizovanog sadržaja i analizu međusobnih interakcija korisnika. U okviru ovog rada predstavljamo detaljnu metodologiju i rezultate označavanja korpusa na srpskom jeziku prema Plutčikovom modelu kategorizacije, koji prepoznaje osam osnovnih emocionalnih kategorija, kao što su radost, tuga, bes, strah, poverenje, gađenje, iščekivanje i iznenađenje. Cilj istraživanja je da se analizira emocionalni sadržaj tekstova preuzetih sa društvenih mreža X (nekada Twitter) ...
    emocije, Plutčikov model, označavanje, korpus, društvene mreže, srpski jezik

  • Contrastive Analysis of Syntax Patterns in Comparable Football Corpora in Spanish and Serbian Languages

    Jelena Lazarević, Olivera Kitanović (2024.)
    Cilj rada je istraživanje kolokabilnosti kao načina na koji se leksičke jedinice povezuju sa rečima iz različitih kategorija, formirajući veće jedinice. Istraživanje semantičkih i sintaksičkih principa ovih kombinacija u španskom i srpskom jeziku fudbala izvedeno je na komparabilnim fudbalskim korpusima SrFudKo i EsFudko, razvijenim u okviru doktorske disertacije Jelene Lazarević pod nazivom: Jezičke odlike diskursa novih medija o fudbalu: kontrastivna analiza na korpusu srpskog i španskog jezika. Korpus fudbala SrFudKo, kreiran na osnovu tekstova o fudbalu sa pet srpskih veb-portala: ...
    fudbal, korpusi, terminologija, kolokacije, srpski, španski

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... Open pit "Field G" is currently not in function. Its opening, preliminary scheduled for 2015, will provide continuous coal production for the “Nikola Tesla” power plant, even after the open pit “Veliki Crljeni” is closed. The geodatabase has been populated with data in two ways: by import of relevant ...
    ... GEODATABASE MODELING The fundamental component of a geographic information system is a spatial database or geodatabase. The concept of a database pertains to a collection of various types of geographic data, stored in the system’s data catalogue or a RDBMS (relational database management system) database ...
    ... authors’ wish to bring closer to the mining public at least a small part of the possibilities offered by GIS, both in mining activities and in environment protection. This paper outlines a methodology for development of a spatial database, that is, a geodatabase, for open pit mines. The geodatabase dubbed ...

  • Стабилизација косине приступног пута у југоисточном делу површинског копа „Ћерамиде“

    Никола Анђелић (2024)
    Експлоатација дацита као техничког камена се на површинском копу "Ћерамиде" врши дисконтуалном технологијом уз примену бушачко-минерских радова и високо капацитативне и габаритне опреме. Примане наведене технологије захтева стабилне и безбедне транспортне путеве како би се планирана производња и реализовала. Услед клизишта које је настало у зони главног извозног пута на површинском копу дацита "Ћерамиде" неопходно је обезбедити одговарајуће техничко решење којим би се косина пута довела у стабилно стање. У том смислу предложено је техничко решење са насипањем косине ...
    дацит, површинска експлоатација, стабилност косина, Бисхоп
    ... loma se određuju prema obrascima: r\a—1 G·a-my·|s+my:Ox,') Q'=arcsin 2-|1+a|-{2+a|+G·a·m,:|s+my:o,„'| — (1.8) 16 Nikola 4nđelić \ \ , ı\a—1 C'_a_.· |1+2-·a|-s+|1— a|-m,'03 l'[5+mb'°3n | | G6·a-my,''s}hmy:Ox ! (1.9) |1+a|·\2+a|- /1+ »| _? 3”J |1+a|-|2+a| GSmaxv g, =—" —— — (1.10) Čvrstoća ...
    ... pristupnog puta na koti 500 od koje se formira nasip. 83 Nikola Anđelić sl Profil A - A' 512] _ Dacit I fazc, zdrav 5 10] O Odloženi materijal |___} Nasip M8I Gabioni 0| ao0l — — - – _ — – — – ——— o = e -| = j [ [ a Slika 4.4. Izgled profila 4 — 4' sa naznačenom površinom stenskog ...
    ... holokristalasto-porfirska a tekstura masivna. Srednja zapreminska masa sa porama i šupljinama iznosi 2.56 gr/cm*. Površinski pokrivač u okonturenom delu ležišta se kreće od 1.5 do do 5.5 m a srednja debljina površinskog pokrivača ili jalovine Je oko 3.4 m. Gornji deo Nikola 4nđelić pokrivača sastoji ...

  • Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration

    Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić (2023)
    This paper presents an analysis of the influence of burden deviation from the designed one on the intensity of blasting vibrations through the use of laboratory and field examinations. By definition, the burden represents the shortest distance from the axis of an explosive column charge to the free surface. It should be measured along the entire hole length, although, in practice, it is often measured only on the bench surface as the shortest distance from the axis of the ...
    linija najmanjeg otpora, 3D model, miniranje, potresi usled miniranja, slobodna površina

  • Numerical simulation of the Late Jurassic closure of the Vardar Tethys

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2021)
    ... Late Jurassic closure of the Vardar Tethys Nikola Stanković, Vesna Cvetkov, Vladica Cvetković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Numerical simulation of the Late Jurassic closure of the Vardar Tethys | Nikola Stanković, Vesna Cvetkov, Vladica Cvetković ...
    ... This work is distributed under the Creative Commons Attribution 4.0 License. Numerical simulation of the Late Jurassic closure of the VardarTethys Nikola Stanković, Vesna Cvetkov, and Vladica Cvetković University of Belgrade, Faculty of Mining and Geology, Serbia (nikola.stankovic@rgf.rs) We report updated ...
    ... simulations (previous interim results reported in EGU2020-5919). The aim of our numerical study is to test the hypothesis that a single eastward subduction in theJurassic is a valid explanation for the occurrence of three major, presently observed geologicalentities that are left behind after the closure ...

  • 2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2020)
    ... of the Vardar Tethys Nikola Stanković, Vesna Cvetkov, Vladica Cvetković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] 2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys | Nikola Stanković, Vesna Cvetkov ...
    ... This work is distributed under the Creative Commons Attribution 4.0 License. Numerical simulation of the Late Jurassic closure of the VardarTethys Nikola Stanković, Vesna Cvetkov, and Vladica Cvetković University of Belgrade, Faculty of Mining and Geology, Serbia (nikola.stankovic@rgf.rs) We report updated ...
    ... simulations (previous interim results reported in EGU2020-5919). The aim of our numerical study is to test the hypothesis that a single eastward subduction in theJurassic is a valid explanation for the occurrence of three major, presently observed geologicalentities that are left behind after the closure ...

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)
    Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...
    optimization, O-Pitblast, drilling, blasting, fragmentation size

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation

  • A new model for determining flyrock drag coefficient

    Stojadinović Saša, Lilić Nikola, Pantović Radoje, Žikić Miodrag, Denić Miodrag, Čokorilo Vojin (2013)

  • Identification of a novel series of benzohopanes and its geochemical significance

    Nytoft H. Peter, Vuković Nikola, Kildahl-Andersen Geir, Rise Frode, Životić Dragana, Stojanovic Ksenija (2016)

  • Did the Western and the Eastern Vardar ophiolites originate through a single intra-oceanic subduction? Insight from numerical modelling

    Nikola Stanković, Taras Gerya, Vesna Cvetkov, Vladica Cvetković (2023)

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach

    Nikola Stanković, Ana Mladenović, Dejan Prelević, Vesna Cvetkov, Vladica Cvetković (2024)

  • A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)

    Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin (2016)
    ... 000 tons of coal. Every other kilowatt in Serbia comes from KCB’s lignite (brown coal). A daily extraction rate of as much as 100,000 tons of coal ensures reliable operation of the thermal power plants Nikola Tesla and Veliki Crljeni. KCB has been the object of extensive research, the most important ...
    ... open-cast mine Tamnava – West Field. The software used in the research provides a portrayal of the 3D distribution of the aquifers present in the study area. As such, the hydrogeologic model constitutes a basis for developing a hydrodynamic (mathematical) model of the groundwater regime. Keywords: h ...
    ... Miocene sands, silt and clay. 3. METHODOLOGY A hydrogeologic model is an interpretation of the dynamic and physical properties of a hydrogeologic system (American Society for Testing and Materials, 2014). According to Polomčić (2001), a hydrologic system is determined by: input elements, ...

  • New insights into tectonic relations between the Eastern Vardar Ophiolitic and Serbo-Macedonian units: Inferences from a microtectonic study in central Serbia

    Maja Maleš, Nikola Ranđelović, Nemanja Krstekanić, Bojan Kostić, Nikolina Ćirić, Uroš Stojadinović (2023)
    Источно-вардарски офиолити, Српско-македонска јединица, микротектонска анализа, каснојурска обдукција, пост-обдукционе деформације

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina | Ranka Stanković, Nikola Vulović, Nikola Lilić ...
    ... 1 WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina Ranka Stanković1, Nikola Vulović2, Nikola Lilić3, Ivan Obradović4, Radule Tošović5, Milica Pešić-Georgiadis6 1 University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia ...
    ... unrelated programs when sending or receiving pre-generated map imagery to users who have issued a request. Simply put, the WMS is a service by which the client can send a request to view a map from a server. This cartographic web service produces maps of georeferenced data by drawing them in the ...