Претрага
2267 items
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Refractive Indices of Unfilled Resin Mixtures and Cured Composites Related to Color and Translucency of Conventional and Low-shrinkage Composites
Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić A. Aleksandra, Dramićanin D. Miroslav. (2015)Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić A. Aleksandra, Dramićanin D. Miroslav.. "Refractive Indices of Unfilled Resin Mixtures and Cured Composites Related to Color and Translucency of Conventional and Low-shrinkage Composites" in Journal of Biomedical Materials Research part B: Applied Biomaterials 00B no. (published online), :Wilez Periodicals, Inc. (2015). https://doi.org/10.1002/jbm.b.33523
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Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites
Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić Aleksandra, Dramićanin Miroslav (2017)Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić Aleksandra, Dramićanin Miroslav. "Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites" in Journal of biomedical materials research. Part B: Applied biomaterials 1 no. 105, Mount Laurel, NJ 08054 USA:Society for Biomaterials (2017): 7-13. https://doi.org/10.1002/jbm.b.33523
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Terminology Acquisition and Description Using Lexical Resources and Local Grammars
Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić. "Terminology Acquisition and Description Using Lexical Resources and Local Grammars" in Proceedings of the 11th Conference on Terminology and Artificial Intelligence, Granada, Spain, 2015, Granada : LexiCon (Universidad de Granada) (2015)
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A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenikaGordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević. "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, Elsevier BV (2021). https://doi.org/10.1016/j.marpetgeo.2021.105383
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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 ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović , Nikola Đokić, Miljan Gomilanović. "Fragmentation size prediction of blasted material using a specialized software for drilling and blasting" in International october conference on mining and metallurgy, Kladovo, 15-17 october 2024, Mining and metallurgy institute bor (2024). https://doi.org/10.5937/IOC24077M
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Affordable Photogrammetry as Applied in the 3D Modelling and Monitoring of Underground Mining Exploitation and Transport
Ristović Ivica, Vulić Milivoj (2014)Ristović Ivica, Vulić Milivoj. "Affordable Photogrammetry as Applied in the 3D Modelling and Monitoring of Underground Mining Exploitation and Transport" in Applied Mechanics and Materials no. 683, Podbanske, Slovakia:Trans Tech Publications, Switzerland (2014): 251-256
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Stability, coherent spiking and synchronization in noisy excitable systems with coupling and internal delays
Franović Igor, Todorović Kristina, Vasović Nebojša, Burić Nikola. "Stability, coherent spiking and synchronization in noisy excitable systems with coupling and internal delays" in Communications in Nonlinear Science and Numerical Simulation 19 no. 9, Amsterdam:Elsevier (2014): 3202-3219
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The Application and Limitations of the SEM-EDS Method in Food and Textile Technologies
Suzana Erić (2017)Suzana Erić. "The Application and Limitations of the SEM-EDS Method in Food and Textile Technologies" in Advanced Technologies, Plenary lecture at the 12th Symposium Novel Technologies and Economic Development 6 no. 2, Leskovac:Univerzitet u Nišu, Tehnološki fakultet, Leskovac (2017): 5-10
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Examination of mineral composition and color origin in natural pigments from France and Finland that are stored in the collection of rocks and minerals, University of Belgrade
Alena Zdravković, Maja Milošević (2022)Alena Zdravković, Maja Milošević. "Examination of mineral composition and color origin in natural pigments from France and Finland that are stored in the collection of rocks and minerals, University of Belgrade" in The Tenth Serbian Ceramic Society Conference »Advanced Ceramics and Application X«, Serbian Ceramic Society (2022)
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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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Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions
This study presents and discusses first detailed petrographic, microthermometric and Raman spectroscopic data from quartzhosted fluid inclusions at Rudnik Zn-Pb-Cu-Ag skarn deposit (Serbia) and combines them with the information on skarnand ore paragenesis. Three periods in the metamorphic-hydrothermal history of the deposit are recognized: 1) the pre-ore prograde skarn period when garnet-clinopyroxene skarns formed, 2) the syn-ore period that encompasses a retrograde stage marked by epidote and zoisite and a quartz-sulfide stage characterized by quartz, pyrrhotite, sphalerite, galena and ...skarnovska ležišta, rudnik, fludine inkluzije, srpska kenozojska magmatska provincija, Zapadno Tetisjki metalogenetski pojasStefan Petrović, Ronald J. Bakker, Vladica Cvetković, Rade Jelenković. "Multiphase evolution of fluids in the Rudnik hydrothermal-skarn deposit (Serbia): new constraints from study of quartz-hosted fluid inclusions" in Mineralogy and Petrology, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s00710-024-00860-7
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Paleovegetation and environment during deposition of the Late Oligocene sub-bituminous coal in the Bobov Dol Basin (SW Bulgaria) as deduced from petrographic and geochemical characteristics
Alexander Zdravkov, Achim Bechtel, Doris Groβ, Ivan Kojić, Ksenija Stojanović, Dragana Životić (2024)Coal and carbonaceous shale samples were taken from the Late Oligocene Bobov Dol Basin, SW Bulgaria. Seams Ia, I, IIa+b, III, IV and V from the coal-bearing Bobov Dol Fm. were sampled to provide insights into the peat forming vegetation and depositional environment based on detailed organic petrological and geochemical study. The petrographic composition indicates that both coals and carbonaceous shales contain predominantly terrestrial organic matter with abundant huminite macerals and locally enriched liptinite macerals. Inertinite is rare or ...Alexander Zdravkov, Achim Bechtel, Doris Groβ, Ivan Kojić, Ksenija Stojanović, Dragana Životić. "Paleovegetation and environment during deposition of the Late Oligocene sub-bituminous coal in the Bobov Dol Basin (SW Bulgaria) as deduced from petrographic and geochemical characteristics" in International Journal of Coal Geology, Elsevier BV (2024). https://doi.org/10.1016/j.coal.2024.104489
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Size–strain line-broadening analysis of anatase/brookite (TiO<sub>2</sub>)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis
Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović (2022)A size-strain line-broadening analysis of the XRPD patterns and Raman spectra for two anatase/brookite (TiO2)-based nanocomposites with carbon (C) was carried out and the results compared with those of a similar sample free of carbon. The crystal structures and microstructures of anatase and brookite, as well as their relative abundance ratio, have been refined from XRPD data by the Rietveld method (the low amount of carbon is neglected). The XRPD size-strain analysis resulted in reliable structure and microstructure results ...Materials Chemistry, Metals and Alloys, Atomic and Molecular Physics, Optics, Electronic, Optical and Magnetic MaterialsAleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović. "Size–strain line-broadening analysis of anatase/brookite (TiO2)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2022). https://doi.org/10.1107/S2052520622001731
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Projected changes in air temperature, precipitation and aridity in Serbia in the 21st century
Boško Milovanović, Sebastian Schubert, Milan Radovanović, Vesna Ristić Vakanjac, Christoph Schneider (2021)In this study, the projected changes of the average monthly and annual air temperatures, precipitation amounts and De Martonne aridity index in Serbia in the 21st century are examined. For that purpose, the spatial distribution of air temperature and precipitation amount is statistically modelled using data of 64 climatologic stations and 421 precipitation stations for the period 1976–2005 using multiple linear regression. The De Martonne aridity index is calculated from the spatially distributed data. In order to obtain regional ...Boško Milovanović, Sebastian Schubert, Milan Radovanović, Vesna Ristić Vakanjac, Christoph Schneider. "Projected changes in air temperature, precipitation and aridity in Serbia in the 21st century" in International Journal of Climatology (2021). https://doi.org/10.1002/joc.7348
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BERT Downstream Task Analysis: Named Entity Recognition in Serbian
This paper compares different architectures and techniques for preparing named entity recognition (NER) models for the Serbian language via integrating BERT with spaCy. Models were trained to recognize seven different named entity types (persons, locations, organisations, professions, events, demonyms, and artworks), and are trained on the dataset containing Serbian novels published between 1840 and 1920, publicly available newspaper articles and sentences generated from the Wikidata knowledge base and Leximirka lexical database. We explore various configurations and several training pipelines ...Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković. "BERT Downstream Task Analysis: Named Entity Recognition in Serbian" in Lecture Notes in Networks and Systems, Springer Nature Switzerland (2024). https://doi.org/10.1007/978-3-031-71419-1_29
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Coupled dynamical systems with internal delays and delayed coupling: behavior and bifurcations
Grozdanović Ines (2007)Grozdanović Ines. "Coupled dynamical systems with internal delays and delayed coupling: behavior and bifurcations" in Facta Universitatis 5 no. 1, Niš:Mechanical Engineering (2007): 11-21
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An update on the mineral-like Sr-containing transition metal arsenates
Tamara Đorđević, Ljiljana Karanović (2021)We report on the crystal structures of three novel synthetic SrM-arsenates (M = Ni and Fe3+), isostructural or structurally related to the minerals from tsumcorite, carminite and brackebuschite groups. They were synthesised under mild hydrothermal conditions and further characterised using single-crystal X-ray diffraction (SXRD), scanning electron microscopy with energy dispersive spectroscopy (SEMEDS) and Raman spectroscopy. SXRD and SEM-EDS yielded formulae: (I) SrNi2(AsO4)2·2H2O, (II) Sr1.4Fe3+ 1.6(AsO4)2(OH)1.6 and (III) SrFe3+(AsO4)(AsO3OH). All three structures are built up of slightly distorted MO6 octahedra ...арсенати метала, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманова спектроскопија, релевантна једињења у животној средини, арсенeochemistry and PetrologyTamara Đorđević, Ljiljana Karanović. "An update on the mineral-like Sr-containing transition metal arsenates" in Mineralogical Magazine, Mineralogical Society (2021). https://doi.org/10.1180/mgm.2021.41
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Early Cretaceous glauconite formation and Late Cretaceous magmatism and metallogeny of the East Serbian part of the Carpatho-Balkanides
Vasković Nada, Jović Vidojko, Matović Vesna. "Early Cretaceous glauconite formation and Late Cretaceous magmatism and metallogeny of the East Serbian part of the Carpatho-Balkanides" in Acta Mineralogica- Petrographica 25, Szeged (Hungary):Department of Mineralogy, Geochemistry and Petrology, University of Szeged (Hungary) (2010): 1-32
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Improvement of Queries using a Rule Based Procedure for Inflection of Compounds and Phrases
Stanković Ranka (2008)Stanković Ranka. "Improvement of Queries using a Rule Based Procedure for Inflection of Compounds and Phrases" in POLIBITS, Research journal on Computer science and computer engineering with applications, Special section: Natural Langugage Processing, Journal of Research and Developement in Computer Science and Engeneering, ed. Grigori Sidorov no. 37, Mexico City, Mexico:Center for Technological Design and Development in Computer Science (CIDETEC) of the National Polytechnic Institute (IPN) (2008): 14-20
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The Crystal Structure and Crystal Chemistry of Mineral-like Cd5(VO4)2(OH)4, a Novel Isomorph of Arsenoclasite and Gatehouseite
Ljiljana Karanović, Tamara Ðorđević (2022)Ljiljana Karanović, Tamara Ðorđević. "The Crystal Structure and Crystal Chemistry of Mineral-like Cd5(VO4)2(OH)4, a Novel Isomorph of Arsenoclasite and Gatehouseite" in Minerals, MDPI AG (2022). https://doi.org/10.3390/min12121601