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183 items

  • Oдређивање броја камиона за транспорт руде на површинском копу Шупља стијена

    Грујичић Стефан (2024)
    Транспорт на површинским коповима се одвија паралелнпо са осталим процесима екаплоатације. Како не би долазило до непредвиђениих трошкова, потребно је усагласити све системе производње. Димензионисање адекватног транспортног система обезбеђује максималну продуктивност механизације и профитабилну експлоатацију. Чињеница да трошкови транспорта заузимају знатан део укупних трошкова иде у прилог томе да је одређивање потребног броја камиона за превоз откопаног материјала од великог значаја. У овом раду извршен је прорачун броја камиона потребног за транспорт руде од откопних етажа до дробилице на ...
    камионски транспорт, руда, транспортна траса, Талпак
    ... rIipeMa aHaJmi3HpaHHM BapHjaHTaMa, IpHKa3aHH Cy Ha CJIHKaMa 4.4. 45 Actions and Global Options Database Loading Unit . (Std DB) Loader Class: Shovel (hydraulic) loading Unit Operation Database Bucket Capacity 4.50 Available Bucket Capacity |_ eg {Fil Factor Applied) Actual Bucket Capacity ...
    ... Actions and Global Options | (Change Truck.. | ___ PProject Optoons.. | Restore Defauhs Identification Touck Tenpiste Name – |STTNEITWEVET Database Truck · (Std DB) |KOMATSU HD 325-5 Operation Spot Time at loader 1.00Mins 60\Secs Spot Time at Dump |__1.00/Mins 60|Secs Dumping Time | __1 ...
    ... is product of loader and truck avail. Local Characteristics Motor Power | 346.0|kW Transmission Speed Factor |__1.00 Weight Modification Database Trnuck Payload | 32.05| tonne equiv.to | 11.35|cu.metres Standard Body Capacity of this truck | 24.00| cu metres Empty Trnuck Weight | 27.20|tonne ...

  • Određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“

    Siniša Bujišić (2024)
    U radu će se govoriti o praktičnoj primeni programskog paketa Talpac za određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“, kao i o ulozi i značaju ovog programa u savremenom rudarstvu. Na osnovu ulaznih podataka i informacija vezanih za Šuplju Stijenu, uz pomoć programskog paketa Talpac izvršeno je projektovanje transportnih trasa. Transportne trase projektovane su tako da obezbede siguran rad ljudstva i opreme, a optimizovane su po pitanju transportnih dužina i organizacije proizvodnje. Kako bi se ...
    alpac, Površinski kop, Transport, Jalovina, Kamion, Šuplja Stijena
    ... Bucket Selection... 7} Identification Loading Unit Template Name IKOMATSU PC 800 Database Loading Unit _ (Std DB) |KOMATSU PC 800-BR| Loader Class: Shovel (hydraulic) Loading Unit Operation Database Bucket Capacity | 4.50|cu.metres Mvailable Bucket Capacity 3.60 (Fill Factor Applied) ...
    ... Costing Data · Distribution Data Actions and Global Options || Change Truck... Project Options... Identification Truck Template Name VOLVOA35E Database Truck · (Std DB) |VOLVO A35E Operation Restore Defaults Spot Time at loader 0.40|Mins Spot Time at Dump |_ 0.30|Mins Dumping Time |_ _0 ...
    ... Factor |__1.00 Weight Modfiication 24|Secs 18|Secs Motor Power | 309.0|kW 12|Secs Truck utilisation is product of loader and truck avail. Database Truck Payload | 33.50| tonne equiv.to Standard Body Capacity of this tnuck Empty Truck Weight | 28.10| tonne Actual Truck Payload | 33.50| tonne ...

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...
    nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku
    ... , 19–21. Stanković, Ranka, Cvetana Krstev, Biljana Lazić, and Mihailo Škorić. 2018. “Electronic dictionaries-from file system to lemon based lexical database.” In Proceedings of the 11th LREC - W23 6th Workshop on Linked Data in Linguistics: Towards Linguistic Data Science (LDL- 2018), LREC 2018, Miyazaki ...
    ... knowledge, and a hands- on session using the Protégé9 ontology editor. The third day was dedicated to the topics related to representing and querying lexical data with ded- icated sessions on the OntoLex-Lemon model and the SPARQL querying language. The fourth day included sessions which gave an overview ...
    ... Cimiano, and Christiane Fell- baum. 2013. “Towards open data for linguistics: Linguistic linked data.” In New Trends of Research in Ontologies and Lexical Resources, 7–25. Springer. Cimiano, Philipp, Christian Chiarcos, John P McCrae, and Jorge Gracia. 2020. “Converting language resources into linked ...

  • Sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja

    Anđela Jovanović (2024)
    Predmet i cilj pisanja ovog rada su sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja. Prilikom ovih istraživanja, ispitivan je sistem REE2O3–V2O5–KF, gde REE predstavlja trovalentni katjon izabranih elemenata retkih zemalja (Y, Sm, Eu, Gd, Er, Yb). Ovo istraživanje bazirano je na sintezi kristala, nakon čega su dobijeni kristali posmatrani pod binokularnom lupom, analizirani metodom rendgenske difrakcije na polikristalnom materijalu (XRPD) i metodom skenirajuće elektronske mikroskopije sa energetsko-disperzivnom spektroskopijom (SEM-EDS), kako bi se utvrdile karakteristike dobijenih kristala. ...
    elementi retkih zemalja, sinteza kristala metodom fluksa, vanadati alkalnih metala, rendgenska difrakcija, SEM-EDS metoda

  • Advantages and challenges in presenting mathematical content using EDX platform

    Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone (2016)
    ... more comprehensive research related to awareness of importance of OER materials in Serbian learning environment. In parallel, improvement of lexical resources for mathematical content in Serbian will be continued. REFERENCES [1] United Nations Educational, Scientific and Cultural Organization ...
    ... NET Framework for C# programming language and MVC design pattern, as well as HTML and JavaScript, whereas SQL Server served as support for the database. The application is located at http://termi.rgf.bg.ac.rs/ and consists of 5 specific units: browse, search, update, bibliography and profiles. Termi ...

  • Numerical modeling of Selanac debris flow propagation using SPH code

    Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi (2021)
    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 ...
    debris flow, modelling, SPH code, DEM
    ... Geotechnical Engineering (ISSMGE). The library is available here: https://www.issmge.org/publications/online-library This is an open-access database that archives thousands of papers published under the Auspices of the ISSMGE and maintained by the Innovation and Development Committee of ISSMGE ...

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... expected temperatures in the Triassic reservoir. A review of existing documentation was conducted, and relevant data were stored in a dedicated database. Three main groups of base data were compiled: geological, hydrogeological data and geothermal indicators. Data (point, line, polygon, raster) ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... open education, semantic web, information systems, database modelling, geoinformation management and artificial intelligence. Her current research is focused on building custom components that incorporate knowledge from various language and lexical resources. She is head of Computer Centre for the ...
    ... from several OERs related to programming and web design, it includes learning materials on Social Networks analysis, GIS application in geology, Lexical Analysis in Natural Language Processing, Security in IT etc. Khan Academy published mathematics and IT OERs generally for young children. Mathematics ...
    ... BAEKTEL metadata platform development is based on the open source Digital Asset Management (DAM) system ResourceSpace, relying on PHP backend, MySQL database and the GD Graphics Library (http://www.resourcespace.org/) 4 Chapter # - will be assigend by editors The Platform provides intelligent ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... ires de Franche Compte, Paris, 2007. [4] Fellbaum C. (ed.) (1998) WordNet: An Electronic Lexical Database, The MIT Press. [5] Maurel D., Vitas D., Krstev S., Koeva S., (2007) „Prolex: a lexical model for translation of proper names. Application to French, Serbian and Bulgarian“, BULAG ...
    ... The Repository is available at: www.dr.rgf.bg.ac.rs PROŠIRIVANJE UPITA ZASNOVANO NA LEKSIČKIM RESURSIMA QUERY EXPANSION SUPPORTED BY LEXICAL RESORCES Ranka Stanković, Univerzitet u Beogradu, Rudarsko-geološki fakultet Ivan Obradović, Univerzitet u Beogradu, Rudarsko-geološki fakultet ...
    ... Technology Group at the University of Belgrade can be used for improvement of queries. Search results can be substantially improved by using various lexical resources, such as morphological dictionaries and semantic networks. The outlined approach may be used within the System of scientific, technical ...

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... ss_ meanlog, ss_ sdlog 2 2 1 � � � � � �; ( , )y The steps involved in the study can be summarized as: (1) Build a consistent geological database using drill holes and use this data to develop MinexTM coal quality seam models to map the variability associated with the in situ qualities. Generation ...
    ... 1+ S_stdey” ; y=rlnorm(l,ss_meanlog, ss_sdlog) s_ mean? The steps involved in the study can be summarized as: (1) Build a consistent geological database using drill holes and use this data to develop Minex™ coal quality seam models to map the variability associated with the in situ qualities. Generation ...

  • Integrisanje heterogenih leksičkih resursa

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    Osnovna aktivnost Grupe za obradu prirodnih jezika na Matematičkom fakulteta Univeziteta u Beogradu je usmerena na razvoj različitih resursa za obradu srpskog jezika. Među njima su posebno značajni sistem morfoloških rečnika srpskog jezika razvijenih u okviru mreže RELEX [1] i semantička mreža (tipa wordnet) za srpski jezik razvijena u okviru međunarodnog projekta Balkanet. Radi se o dva heterogena leksička resursa, razvijena na osnovu sasvim različitih modela, koji samim tim sadrže i različite vrste leksičkih informacija. Integracijom ovih resursa, informacije ...
    lekisički resursi, obrada prirodnog jezika, rečnici
    ... Conference in Informatics. [5] Vossen, P. (ed.) (1998). EuroWordNet: A Multilingual Database with Lexical Semantic Networks. Dordrecht: Kluwer Academic Publishers. [6] Krstev C., et al. (2004) Combining Heterogeneous Lexical Resources, Proceedings of LREC2004, 4th International Conference On Language ...

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... enrollment information, configurable marketing copy, and so on. Figure 2: LRMI tagging in BAEKTEL Edx platform is using Mongo NoSQL database for storing courses and custom APIs are used for retrieving metadata 3. Search OER tagged with LRMI is more easily discovered and accessed ...

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... process takes place in several steps. The homogenization entails realistic planning of surface mining based on a precise and accurate coal quality database and proper use of available equipment. However, anticipated large oscillations and a large value range for lower heating value can result in inability ...

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... Minex, the data went through many transformations. Borehole data where obtained from BpUBS (Integral data base of Serbian Coal Basins). This database stores all exploration drilling data from Kolubara Coal Basin, such as: basic information about drill hole (collar data), complete lithology ...

  • 3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia

    Saša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac (2013)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling semantic search of mathematical content ...
    ... learning environment at different levels of education in Serbian, is given. The salient feature of the system is strong lexical support. Within MLES various types of lexical resources are used as well as local grammars, with the aim to provide a comprehensive and searchable learning environment ...
    ... analysis, processing of mathematical content in different formats, search of mathematical materials, indexing of mathematical content using Serbian lexical resources, issues that are further complicated due to rich Serbian morphology. This paper outlines the structure and solutions for MLES, as well ...

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... at: https://eur-lex.europa.eu/legal-content/EN/TXT/?uriıCELEX%3A02010L0075-20110106 [4] Official Journal of the European Union, European Coal Database - Europe Beyond Coal, 2023. [5] ***. Power plants in the United States by source, available · at: https://openinframap.org/stats/area/Unite ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... this article as they exhibit im- portant relationship between the origin of clays and their quality and morphology of de- posits, and quite a large database of unpublished reports. In this analysis we were using results from numerous geological reports on different industrial clays that were prepared ...
    ... ceramic clays, bentonites, and common clays that were available in the funds of geological insti- tutes that existed in the previous period. The database that we checked and analyzed also included a large number of papers published in the Serbian language, and the most important sources of information ...

  • A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian

    Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih (2021)
    Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...
    uvredljivi jezik, govor mržnje, srpski, tviter, leksikon, korpus
    ... org/TR/turtle/ https://www.w3.org/TR/turtle/ D. Jokić, R. Stanković, C. Krstev, and B. Šandrih 13:13 Figure 6 The Leximirka application for lexical database management and use. stops, punctuation, number of all tokens, average token length, max token length). We use this score to rank examples, but system ...
    ... AAAI conference on artiĄcial intelligence, pages 1621–1622, 2013. 22 Biljana Lazić and Mihailo Škorić. From DELA based dictionary to Leximirka lexical database. Infotheca Ű Journal for Digital Humanities, 19(2):81–98, 2020. doi:10.18485/infotheca. 2019.19.2.4. 23 Nikola Ljubešić, Darja Fišer, and Tomaž ...
    ... the Linked (Open) Data (LOD) paradigm that is used for publishing lexical resources by using URIs to unambiguously identify lexical entries, their components and their relations in the web of data. Moreover, it is used to make lexical data sets accessible via http(s), to publish them in accordance with ...