Претрага
466 items
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
Vladica Cvetković, Kristina Šarić, Dejan Prelević. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region),, Miass: (2017): 52-57
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
Vladica Cvetković, Kristina Šarić, Dejan Prelević. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region),, Miass: (2017): 52-57
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
В. Цветковић, К. Шарић, Д. Прелевић.. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region), (2017): 52-55
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Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7
Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...... categories. In this way, the following were identified: A - „favourable“, B - „conditionaly favourable“ and C - „unfavourable“ sections, which are related to the complexity of the construction of planned structures on the highway route. RÉSUMÉ: Une partie de l'autoroute E-80 qui traverse la Serbie ...
... ions (68 geoelectrical sounds, 18 refraction profiles), mineralogical- petrological tests (Rakic, 2017). It is important to mention research related to wider area of highway route which enabled registration of large regional structures that are important for highway construction: photo-geological ...
... hydrogeological conditions (groundwater level, flooding), coverage of the terrain, climatic conditions, - „factors of the future“ that are related to the geotechnical complexity of planned highway structure construction (excavations, cuts, embankments, drainage etc.). The influence of ...Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković. "Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7" in Proceedings of the XVII European Conference of Soil Mechanics and Geotechnical Engineering ECSMGE-2019, Reykjavik, Iceland, 1-6. 09. 2019., ISSMGE, ECSMGE-2019 (2019). https://doi.org/10.32075/17ECSMGE-2019-0393
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Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty
... et al., 2008). Ultrasonic laboratory experiments on cores show evidence for both layering and fracture related anisotropy in different rock types (Melaku, 2007). Ultrasonic velocities are related to the properties of the stone and they can thus be applied to assess the quality of the stones, to detect ...
... propagation velocities are measured in the three normal directions and three orthogonal planes, respectively. The main scope of this study is related to interval numbers in order to express uncertainties of the longitudinal elastic waves propagation velocities. Based on this, we have determined ...
... the two types of rock samples. The investigations implied calculation of quantitative indicators of anisotropy. In order to decrease uncertainty related to external infuencing on devices, we have applied interval numbers. On that way, we upgraded previous paper (Gligorić et. al., 2017) by converting ...Miloš Gligorić, Jelena Majstorović, Suzana Lutovac. "Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty" in Underground Mining Engineering, Belgrade : University of Belgrade - Faculty of Mining and Geology (2018). https://doi.org/10.5937/PodRad1832001G
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FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain
U radu se daje kratak prikaz teorije semantike okvira, na kojoj je zasnovana leksička baza Frejmnet. Predstavljena je koncepcija ove mreže, kao i mogućnosti njene primene. Predstavljena je i leksička analiza koja se primenjuje u projektu izrade Frejmneta i ukazano na razlike između analize zasnovane na okviru u odnosu na analizu zasnovanu na reči. Zatim je prikazano nekoliko povezanih okvira koje prizivaju reči iz domena rizika. U radu je predstavljena i platforma NLTК pomoću koje se mogu koristiti ...... For instance, we can extract concordances for a target lemma or multi-word expression, collocates of a lemma, related-word thesaurus, Word Sketch or Word Sketch Difference for two related words. The word sketch approach, developed by Kilgarriff et al. (2004), helps build FrameNet and similar re- sources ...
... out the differences between the frame-based lex- ical analysis and its word-based counterpart. This is followed by an illustration of a cou- ple of related frames evoked by words from the risk domain. FrameNet data is also readily available through the Python API included in the NLTK (Natural Language ...
... mining- themed corpus. We also present its most common collocates, word sketch, individual pattern concordances, thesaurus entry of its synonyms and related words, collocation fre- quency graphs. A word cloud for the word risk is also included. KEYWORDS: Serbian language, frame semantics, FrameNet, risk ...Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović. "FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.1
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FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina
... Faculty of Mining and Geology, Đušina 7, 11080 Belgrade, Serbia *Corresponding author: lazark@agrif.bg.ac.rs Abstract Environmental problems related to the use of herbicides are a causing concern due to their increasing presence in soil, groundwater and surface water. Numerous methods are developed ...
... morillonite. Also, the intensity of these bands decreases significantly with increasing concentration of HDTMA+ cation. All these changes are related to the decreasing of the water content in the interlayer space by increasing the content of HDTMA. The occurrence of the stretching CH2 vibrations ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina" in 3rd International and 15th National Congress - Soils for Future under Global Challenges, Sokobanja, Serbia, Serbian Society of Soil Science (2021)
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Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts
Dejan Radivojević (2019)... [ДР РГФ] Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts | Dejan Radivojević | GeomorForum 2019, Landforms related to the plains of Serbia and its neighboring area, Beograd, | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005457 Дигитални репозиторијум Рударск ...Dejan Radivojević. "Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts" in GeomorForum 2019, Landforms related to the plains of Serbia and its neighboring area, Beograd, , Društvo geomorfologa Srbije (2019)
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Tektonska evolucija severoistočnih Dinarida
... rare mm to dm-scale isoclinal and asymmetric folds with significant variability in fold-axis orientation. The second observed deformation phase is related to Middle Jurassic to Eocene convergent processes between Adriatic and European derived continental units during the closure of the intervening ...
... of previously buried segments of the Adriatic margin, as a result of the coeval opening of the Pannonian Basin. The ductile structural pattern related to this extensional phase is characterized by dominant E- dipping S3 foliation. Moreover, a top to E ductile shear zone with quartz sigma clasts is ...Nikola Ranđelović, Branislav Trivić, Nemanja Krstekanić, Bojan Kostić, Uroš Stojadinović. "Tektonska evolucija severoistočnih Dinarida" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Application of ERT in the study of debris-flow source area: Case study Selanac debris flow
Dragana Đurić, Jelka Krušić, Biljana Abolmasov. "Application of ERT in the study of debris-flow source area: Case study Selanac debris flow" in 11th Congress of the Balkan Geophysical Society, Volume 2021, Online-Romania, 10 -14. Oct 2021,, European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202149BGS15
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Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention
Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol InjectionMilica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović. "Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention" in Underground Mining Engineering, Beograd : Rudarsko-geološki fakultet (2023)
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Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking
U radu se prikazuju rezultati istraživanja vezanih za pripremu paralelnih korpusa, fokusirajući se na transformaciju u RDF grafove koristeći NLP Interchange Format (NIF) za lingvističku anotaciju. Pružamo pregled paralelnog korpusa koji je korišćen u ovom studijskom slučaju, kao i proces označavanja delova govora, lematizacije i prepoznavanja imenovanih entiteta (NER). Zatim opisujemo povezivanje imenovanih entiteta (NEL), konverziju podataka u RDF, i uključivanje NIF anotacija. Proizvedene NIF datoteke su evaluirane kroz istraživanje triplestore-a korišćenjem SPARQL upita. Na kraju, razmatra se povezivanje Linked ...paralelni korpusi, povezivanje imenovanih entiteta, prepoznavanje imenovanih entiteta, NER, NEL, povezani podaci, NIF, VikipodaciRanka Stanković, Milica Ikonić Nešić, Olja Perisic, Mihailo Škorić, Olivera Kitanović. "Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking" in Proceedings of the 9th Workshop on Linked Data in Linguistics @ LREC-COLING 2024, Turin, 20-25 May 2024, ELRA and ICCL (2024)
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Building Terminological Resources in an e-Learning Environment
... educational impact. It is of paramount importance that students involved in the study of a specific domain get acquainted with the proper terminology related to that domain both in their mother tongue, and in other languages. Hence the need to integrate terminological resources in e-format into the e-learning ...
... being intensively enlarged and refined. However, it is also already being used, among other things for the production of controlled dictionaries related to planning and management of exploitation, to mine safety protection systems, mining equipement management, human resources management systems ...
... knowledge, which includes a vocabulary with a set of concepts, semantic relationships between these concepts, and a simple reasoning mechanism related to a specific domain. Ontology A formal representation of knowledge which includes the vocabulary containing a set of concepts, semantic ...Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja. "Building Terminological Resources in an e-Learning Environment" in Proceedings of the Third International Conference on e-Learning, eLearning-2012, September 2012, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2012)
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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... 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 particular topic. The result of this query is a selection of web pages the search engine determines as relevant to the query. The information ...
... delivered by the search engine. At the first glance, the main problem lies in the fact that the user, when composing a query, might omit some words related to the concept, thus reducing system recall. A simple query expansion by adding the omitted words would seemingly resolve this problem. However ...
... is far from systematic. As is often the case with stemmers, Google expands the query by including not only (some) inflective forms but also related words. For example, a Google query with the Serbian word prevodilac ‘translator’ also offers web pages containing the word prevod ‘translation’ ...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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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... Ministry. The approvals and permits are issued by the Ministry of Mining and Energy, while all approvals and permits for the territory of the Autonomous region of Vojvodina are issued by the Regional Secretariat for Energy and Mineral Resources. In each case, the necessary documents are the same. ...
... Serbian) 57. Ministry of Mining and Energy of the Republic of Serbia, Geology and Mining. Available online: http://gis.mre.gov.rs/vi- sios/Srbija (accessed on 16 April 2021). 58. Republic of Serbia, Autonomous Province of Vojvodina, Provincial Secretariat for Energy, Construction and Traffic, Geological ...
... applied geological exploration, financed by private companies. Geological exploration and min- ing are under jurisdiction of the Ministry of Mining and Energy and the mineral resources permitting regime is a mixed one, although predominantly based on a one-stop-shop, as Citation: Simić, V.; Životić, D ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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A bilingual digital library for academic and entrepreneurial knowledge management
A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...... is teaching several courses related to informatics (traditional, online and blended) and she is head of the Computing Centre of Mining Department, responsible for e-Learning support. She participated in several national and international scientific projects related to HLT and e-Learning with special ...
... (GeolISS) was financed by the Ministry of Environmental Protection during the period 2004–2006, and is presently maintained by Ministry of Mining and Energy. Many institutions working with geological data are using GeolISS. 4http://rudonto.rgf.bg.ac.rs/ is the system of ontologies developed for the mining ...
... g into other languages, morphologically by including all inflected forms of keywords in a query, and semantically by adding synonyms or other related words. The query expansion is supported by various language resources, described in section 4.1. Additionally, Bibliša represents a valuable tool ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić. "A bilingual digital library for academic and entrepreneurial knowledge management" in Proceeding of 10th International Forum on Knowledge Asset Dynamics — IFKAD 2015: Culture, Innovation and Entrepreneurship: connecting the knowledge dots, Bari, Italy, 10-12 June 2015, Bari : IFKAD (2015)
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Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia
Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetra... the Best Available Renewable Energy Source for Electricity Production in Serbia Boban Pavlović, Dejan Ivezić, Marija Živković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Identification of the Best Available Renewable Energy Source for Electricity Production ...
... for Use of Ren ewable En ergy Sources in dicate the plan for in creasing the share of r en ewable energy sou r ces (RES) in electricity production. Serbia is obliged to reach 27% of the gross energy final con sumption prov ided from the RES u ntil 2020. To identify the strategic RES for sustainable ...
... Production in Serbia | Boban Pavlović, Dejan Ivezić, Marija Živković | Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020. | 2020 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005061 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia" in Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020., Faculty of Mechanical Engineering and Naval Architecture, Zagreb (2020)
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An Integrated Environment for Management and Exploitation of Linguistic Resources
Ranka Stanković, Ivan Obradović (2009)... make some of the functions related to the develop- ment and use of linguistic resources available on the web as well. As the majority of functions preformed by WS4LR and WS4QE overlap, in this section we shall describe only some of the basic functions of WS4LR related to management and development ...
... bian Ministry of Science and Technological Development Another goal was their integration, which would render the solution of various tasks related to processing of e-texts much easier. Thus a tool, with the acronym WS4LR (Work- station for Linguistic Resources), was developed. This tool ...
... less than 15,000 synsets. Wordnets within BalkaNet were developed in XML for- mat following the pattern outlined by EuroWordNet. Name- ly, synsets related to same (or similar) concepts in different languages were connected via the Interlingual index (ILI), integrating all BalkaNet wordnets into ...Ranka Stanković, Ivan Obradović. "An Integrated Environment for Management and Exploitation of Linguistic Resources" in Proceedings of the International Multiconference on Computer Science and Information Technology, Computational Linguistics – Applications Workshop (CLA09), Mrągowo, Poland, October 2009, Piscataway : IEEE (2009)
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Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series
Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija... road support system. For this purpose, we have developed a model consisting of two main phases. The first phase is related to support deformation monitoring, while the second phase is related to data analysis. To record support deformations over a defined time horizon we use laser scanning technology together ...
... road support system. For this purpose, we have developed a model consisting of two main phases. The first phase is related to support deformation monitoring, while the second phase is related to data analysis. To record support deformations over a defined time horizon we use laser scanning technology together ...
... [CrossRef] 14. Hassani, H.; Mahmoudvand, R. Multivariate Singular Spectrum Analysis: A General View and New Vector Forecasting Approach. Int. J. Energy Stat. 2013, 1, 55–83. [CrossRef] 15. Kalantari, M.; Hassani, H. Automatic Grouping in Singular Spectrum Analysis. Forecasting 2019, 1, 189–204. [CrossRef] ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4