Претрага
565 items
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Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia
Mitrović Danica, Đoković Nataša, Životić Dragana, Bechtel Achim, Šajnović Aleksandra, Stojanović Ksenija (2016)Mitrović Danica, Đoković Nataša, Životić Dragana, Bechtel Achim, Šajnović Aleksandra, Stojanović Ksenija. "Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia" in International Journal of Coal Geology 168, Amsterdam, Netherlands:Elsevier BV (2016): 80-107. https://doi.org/10.1016/j.coal.2016.07.008
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Multiannual effects of Peštan source operation in the function of predewatering the future Kolubara bsin opencast mines
Polomčić Dušan, Pavlović Vladimir, Bajić Dragoljub, Šubaranović Tomislav. "Multiannual effects of Peštan source operation in the function of predewatering the future Kolubara bsin opencast mines" in Proceedings of VI International Conference COAL, Zlatibor: (2013): 259-266
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Oprema za rad na deponijama i efikasnost rada deponijskih mašina u funkciji od načina odlaganja i zahvatanja
Ignjatović Dragan, Knežević Dinko, Jovančić Predrag. "Oprema za rad na deponijama i efikasnost rada deponijskih mašina u funkciji od načina odlaganja i zahvatanja" in International workshop COAL QUALITY MANAGEMENT, MAREN 1, Lazarevac:Rudarsko-geološki fakultet (2011)
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Pyrolysis of lignite, HDPE, and lignite/HDPE mixture
Kojić Ivan, Gajica Gordana, Životić Dragana, Bechtel Achim, Stojanović Ksenija. "Pyrolysis of lignite, HDPE, and lignite/HDPE mixture" in ICCP Program & Abstract Book. 67th Annual Meeting of the International Committee for Coal and Organic Petrology, September 5-11. 2015,, Potsdam, Germany:Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften Heft 87 (2015): 96-97
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Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia
Mitrović Danica, Đoković Nataša, Životić Dragana, Bechtel Achim, Stojanović Ksenija. "Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia" in ICCP Program & Abstract Book. 67th Annual Meeting of the International Committee for Coal and Organic Petrology, September 5-11. 2015,, Potsdam, Germany:Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften Heft 87 (2015): 122-123
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Petrological and organic geochemical characteristic of brown coals from Senje-Resavica basin, eastern Serbia
Životić Dragana, Jovančićević Branimir, Gržetić Ivan, Cvetković Olga, Ercegovac Marko, Stojanović Ksenija, Šajnović Aleksandra (2010)Životić Dragana, Jovančićević Branimir, Gržetić Ivan, Cvetković Olga, Ercegovac Marko, Stojanović Ksenija, Šajnović Aleksandra. "Petrological and organic geochemical characteristic of brown coals from Senje-Resavica basin, eastern Serbia" in Abstracts / 62nd Meeting of the International Committee for Coal and Organic Petrology (ICCP), September 26th-October 2nd 2010, Belgrade, Belgrade, Serbia:Serbian Academi of Sciene and Ars (2010): 8-9
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Опрема за континуалну контролу квалитета угља, on-line анализатори
Кнежевић Динко, Колоња Божо, Игњатовић Драган, Деушић Славен, Вучинић Душица, Томанец Рудолф. "Опрема за континуалну контролу квалитета угља, on-line анализатори" in International workshop COAL QUALITY MANAGEMENT, MAREN, Београд, Србија:Rudarsko-geološki fakultet (2011)
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GC-MS characterization of some novel benzohopanes in coals.
Vuković Nikola, Nytoft H.Peter, Životić Dragana, Stojanović Ksenija. "GC-MS characterization of some novel benzohopanes in coals." in ICCP Program & Abstract Book. 67th Annual Meeting of the International Committee for Coal and Organic Petrology, September 5-11. 2015,, Potsdam, Germany:Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften Heft 87 (2015): 162-163
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Preliminary organic geochemical study of lignites from Smederevsko Pomoravlje field, Kostolac Basin, Serbia
Mitrović Danica, Đoković Nataša, Stojanović Ksenija, Kumar Das Supriyo, Ekblad Alf, Mikusinska Anna, Životić Dragana (2013)Mitrović Danica, Đoković Nataša, Stojanović Ksenija, Kumar Das Supriyo, Ekblad Alf, Mikusinska Anna, Životić Dragana. "Preliminary organic geochemical study of lignites from Smederevsko Pomoravlje field, Kostolac Basin, Serbia" in 64rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP) Book of Abstracts, Sosnowiec, Poland:University of Silesia, Sosnowiec (2013): 90-91
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Petrological and geochemical composition of lignite from the D field, Kolubara basin
Životić Dragana, Stojanović Ksenija, Gržetić Ivan, Jovančićević Branimir, Cvetković Olga, Šajnović Aleksandra, Simić Vladimir, Stojaković Rajko (2011)Životić Dragana, Stojanović Ksenija, Gržetić Ivan, Jovančićević Branimir, Cvetković Olga, Šajnović Aleksandra, Simić Vladimir, Stojaković Rajko. "Petrological and geochemical composition of lignite from the D field, Kolubara basin" in Book of Abstracts / 63rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP), Porto, Portugal:Universidade do Porto, Faculdade de Ciencias (2011): 101-102
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Novi pravilnik o sadržini rudarskih projekata
Kolonja Božo, Knežević Dinko, Lilić Nikola, Ignjatović Dragan, Danilović Dušan, Ivezić Dejan. "Novi pravilnik o sadržini rudarskih projekata" in International workshop COAL QUALITY MANAGEMENT, MAREN, multimedijalni zbornik prezentacija, Beograd, Srbija:Rudarsko-geološki fakultet (2013)
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Petrological and geochemical composition of lignite from the D field, Kolubara basin (Serbia)
Životić Dragana, Stojanović Ksenija, Gržetić Ivan, Jovančićević Branimir, Cvetković Olga, Šajnović Aleksandra, Simić Vladimir, Stojaković Rajko, Scheeder Georg (2013)Životić Dragana, Stojanović Ksenija, Gržetić Ivan, Jovančićević Branimir, Cvetković Olga, Šajnović Aleksandra, Simić Vladimir, Stojaković Rajko, Scheeder Georg. "Petrological and geochemical composition of lignite from the D field, Kolubara basin (Serbia)" in International Journal of Coal Geology 111 no. 1, Amsterdam, Netherlands:Elsevier BV (2013): 5-22. https://doi.org/10.1016/j.coal.2012.10.014
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Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index
Životić Dragana, Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radić Dejan, Obradović Marko, Stojanović Ksenija (2014)Životić Dragana, Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radić Dejan, Obradović Marko, Stojanović Ksenija. "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index" in International Journal of Coal Geology no. 131, Amsterdam, Netherlands:Elsevier BV (2014): 344-362. https://doi.org/10.1016/j.coal.2014.07.004
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Reprint of Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index
Životić Dragana, Bechtel A., Sachsenhofer R., Gratzer R., Radić D., Obradović M., Stojanović Ksenija (2015)Životić Dragana, Bechtel A., Sachsenhofer R., Gratzer R., Radić D., Obradović M., Stojanović Ksenija. "Reprint of Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index" in International Journal of Coal Geology 157, Amsterdam, Netherlands:Elsevier BV (2015): 165-183. https://doi.org/10.1016/j.coal.2014.07.004
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Split-Desktop software for the analysis of fragment size distribution of blasted rock mass
Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović. "Split-Desktop software for the analysis of fragment size distribution of blasted rock mass" in 9th International Conference Mining and environmental protection, Sokobanja, Serbia, 24 – 27. May 2023, Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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Development of Open Educational Resources (OER) for Natural Language Processing
In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...... resources 4. UNITEX - OPEN ACCESS, OPEN SOURCE, OPEN EDUCATIONAL RESOURCES The course participant will become familiar with the use of Unitex, the corpus processing system for which many valuable resources for Serbian have already been developed. Unitex 11 is an open source system consisting ...
... 03:29:31 Development of Open Educational Resources (OER) for Natural Language Processing Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Development of Open Educational Resources ...
... faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs The Sixth International Conference on e-Learning(eLearning-2015), 24-25 September 2015, Belgrade, Serbia DEVELOPMENT OF OPEN EDUCATIONAL RESOURCE (OER) FOR ...Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević. "Development of Open Educational Resources (OER) for Natural Language Processing" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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Savremene metode deponovanja pepela i šljake i održivi razvoj
Knežević Dinko, Stevanović Dejan, Banković Mirjana, Tomašević Aleksandra, Matko Zlatan, Lončar Stevan, Beatović Sreten, Nikolić Marijana, Pantelić Uroš (2013)Knežević Dinko, Stevanović Dejan, Banković Mirjana, Tomašević Aleksandra, Matko Zlatan, Lončar Stevan, Beatović Sreten, Nikolić Marijana, Pantelić Uroš. "Savremene metode deponovanja pepela i šljake i održivi razvoj" in International workshop COAL QUALITY MANAGEMENT, MAREN, multimedijalni zbornik prezentacija, Beograd, Srbija:Rudarsko-geološki fakultet (2013)
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Utvrđivanje eksplotacionih učinaka sistema na otkrivci na površinskom kopu Tamnava-Zapadno polje primenom Fuzzy Topsis metode
Planiranoj proizvodnji uglja na površinskim kopovima prethodi nesmetano i kontinuirano otkopavanje otkrivke. Kako bi se obezbedila potrebna količina uglja, sistemi na otkrivci moraju uvek biti korak ispred u dinamici razvoja kopa. Velika produktivnost, visoki kapaciteti i dobar koeficijent vremenskog iskorišćenja, treba da budu odlika rada sistema putem kojih se vrši otkopavanje otkrivke. Kroz ovaj rad izvršena je analiza eksploatacionih učinaka za posmatrani period po smenama, kako bi se utvrdilo koja je od pomenutih smena ostvarila najbolje rezultate.Marko Lazić, Filip Miletić, Lazar Žujović. "Utvrđivanje eksplotacionih učinaka sistema na otkrivci na površinskom kopu Tamnava-Zapadno polje primenom Fuzzy Topsis metode" in XV međunarodna konferencija Ugalj 2022, Jugoslovenski komitet za površinsku eksploataciju (2022)
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Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...... For example, if the user is interested in projects that deal with the research of “lignite coal in Tamnava region”, then mineral resource is selected as one facet and the words lignit ‘lignite’ and ugalj ‘coal’ are defined for keyword search, and the system will search for any of these two words in ...
... ranking within the initial system. Namely, if a “general search” is performed instead of a faceted search for the query “Tamnava or Ub and coal or lignite” the document “Coal of the Tamnava basin in the vicinity of Ub”, which was ranked first in the faceted search, drops to the 21st place, with irrelevant documents ...
... corresponding metadata field, and this information is subsequently used for document ranking. Fig. 1. A search for documents dealing with “lignite coal in Tamnava region” by GeoliSS When performing faceted search, the users express their information need by selecting the facets and appropriate keywords ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
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Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... concept by using fuzzy theory with AHP correction, a Case study: Bulldozers in the open-pit lignite mine. Energies 2019, 12, 4044. [CrossRef] © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons ...
... in Iraq, Stage II. Int. J. Crit. Infrastruct. Prot. 2020, 28, 100337. [CrossRef] 20. Ataei, M.; Khalokakaie, R.; Hossieni, M. Determination of coal mine mechanization using fuzzy logic. Min. Sci. Technol. 2009, 19, 149–154. [CrossRef] 21. Kabir, S.; Papadopulos, Y. A review of applications of fuzzy ...
... be used in terms of project management [19]. Ataei et al. have used fuzzy logic theory and fuzzy rules in the selection of machinery in underground coal mines [20]. Kabir and Papadopoulos [21] have analyzed methodologies based on fuzzy set theory that have been applied to safety and reliability, such ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525