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2268 items
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Analysis of the exhaust emissions inventory from auxiliary mining machines
Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović. "Analysis of the exhaust emissions inventory from auxiliary mining machines" in 9th International Conference Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology (2023)
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A Lexical Approach to Acronyms and their Definitions
In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.... of Education and Science under grants 47003 and 178003. 6. References Jacobs, K., A. Itai, and S. Wintner, 2014. Acronym Dic- tionary Construction and Disambiguation (abstract). 3rd Parseme General Meeting – Poster Session. Krstev, C., R. Stanković, I. Obradović, D. Vitas, and M. Utvić, 2010 ...
... 80% of acronyms are ambiguous, and some of them have as much as 15 interpretations. Although the ambiguity in general language may not be as high, many acronyms have several interpretations, for instance RAF – Kraljevsko ratno vazduhoplovstvo ‘Royal Air Forces’ and Frakcija Crvene armije ‘Rote ...
... acronyms and abbrevia- tions (Moon et al., 2012). Authors in (Ranchhod et al., 2004) take a different approach – they present how a list of known acronyms and their definitions is incorporated into existing electronic lexicons. Although most of the research on acronyms focuses on general texts (e ...Cvetana Krstev, Duško Vitas, Ranka Stanković. "A Lexical Approach to Acronyms and their Definitions" in Proceedings of the 7th Language & Technology Conference, November 27-29, 2015, Poznań, Poland, Springer (2015)
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Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names
In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...... the results of previous transducers and on e- dictionaries of Serbian (Vitas and Krstev, 2012). E-dictionaries play an important role specifically in the recognition of name expressions, since, beside general lexica, they contain many proper names, both personal and geopolitical. The system is modular ...
... DBpedia WordNet and BabelNet. Such example would be automati- cally assigning Wikidata URL that points to a bi- ography of a famous person to the corresponding named entity detected in text. Acknowledgments This research was supported by Serbian Ministry of Education and Science under the grants #III ...
... Association for Computational Linguistics, pages 141–150. Nathalie Friburger and Denis Maurel. 2004. Finite- state Transducer Cascades to Extract Named Entities in Texts. Theoretical Computer Science 313(1):93– 104. Ralph Grishman and Beth Sundheim. 1996. Message Understanding Conference-6: A Brief History ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names" in Proceedings - Natural Language Processing in a Deep Learning World, Incoma Ltd., Shoumen, Bulgaria (2019). https://doi.org/10.26615/978-954-452-056-4_122
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Understanding and Importance of Rare Earth Elements in Hydrogeological Systems
Maja Todorović, Marina Ćuk, Jana Štrbački, Petar Papić, Igor Jemcov . "Understanding and Importance of Rare Earth Elements in Hydrogeological Systems" in Proceedings of 4th Conference of the IAH CEG (Central European Group of IAH) and Guide of Geotrip of the IAH Karst Commision, University of Belgrade, Faculty of Mining and Geology, Department for Hydrogeology, Centre for Karst Hydrogeology (2018)
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Formative evaluation of e-learning projects with the logical framework approach
... issue involves the E-Learning sector, as many others. In general, and as a first approximation, evaluate means to give, recognize, a value in formal, clear and methodologically rigorous way, to a subject (evaluand) [2]. The evaluation as a process nature, being the set of activities related ...
... management elements (activities, resources, outputs, purposes / objectives), functions (social, technical, economic, environmental, etc.) that trigger the changes (assumptions), and the exploitation of the causal links, through a graphical-textual model that takes the form of a Matrix (Logical ...
... that characterizes educational systems in the 21st century, resulting from the merge of different disciplines, such as computer science, communication technology, and pedagogy, since majority of the definitions contained characteristics of more than one discipline [15]. The definitions existing ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
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Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian
The training of new tagger models for Serbian is primarily motivated by the enhancement of the existing tagset with the grammatical category of a gender. The harmonization of resources that were manually annotated within different projects over a long period of time was an important task, enabled by the development of tools that support partial automation. The supporting tools take into account different taggers and tagsets. This paper focuses on TreeTagger and spaCy taggers, and the annotation schema alignment ...... partially supported by Serbian Ministry of Education and Science under the grants #III 47003 and ON 178006, and by COST Action CA16204 Distant Read- ing for European Literary History. 7. Bibliographical References Akbik, A., Blythe, D., and Vollgraf, R. (2018). Contextual String Embeddings for ...
... C., and Vitas, D. (2018). Lexical analysis of serbian with conditional random fields and large-coverage finite-state resources. In Zygmunt Vetu- lani, et al., editors, Human Language Technology. Chal- lenges for Computer Science and Linguistics. LTC 2015. Lecture Notes in Computer Science, vol ...
... intervention and help of lin- guistic specialists. Our focus was not only on removing inconsistencies and reducing the ambiguity level, but also on introducing simultaneously new grammatical categories in the annotation schema. In this paper we present a general strategy for corpus correction and its results ...Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić. "Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian" in Proceedings of the 12th Language Resources and Evaluation Conference, May Year: 2020, Marseille, France, European Language Resources Association (2020)
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Palaeoflora of Kamenica (Pranjani Basin, western Serbia)
Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...... Kamenica is a mix of Late Oligocene and early Miocene floras from Serbia. Paleoclimate estimates derived from the woody dicotyledonous angiosperm from the Kamenica lo- cality indicate the climate was warm and humid, subtropical-tropical. Such favorable environmental and climatic con- ditions were reflected ...
... suggestions and com- ments on our manuscript: deSa đOrđevIć-MILuTINOvIć (Natural history Museum of Belgrade) and other anony- mous reviewer. We also would like to thank LIdIja BeKO for review english text. This work was supported by grants from the Ministry of education, Science and Technologi- ...
... of Neogene basins mostly coincides with low gravity values, but it is not a general case. Gravity anomalies are strongly influenced by the complex configuration of the basin basements and surrounding geology, im- plying a relatively shallow basin depth. The location of the Kamenica paleontological site ...Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević . "Palaeoflora of Kamenica (Pranjani Basin, western Serbia)" in Geološki anali Balkanskog poluostrva, Beograd : Rudarsko-geološki fakultet (2019). https://doi.org/10.2298/GABP1902053L
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Rare earth elements in some bottled waters of Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering GeologyMaja Todorović, Petar Papić, Marina Ćuk, Jana Stojković. "Rare earth elements in some bottled waters of Serbia" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2014). https://doi.org/10.2298/GABP1374071T
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Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija
Dragana D. Đurić (2019)U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...... Vasilyan, D., Schneider, S., Bayraktutan, M.S., Sen S. 2014. Early Pleistocene freshwater communities and rodents from the Pasinler Basin (Erzurum Province, north– eastern Turkey). Turk Journal of Earth Science, 23:293–307. Venczel, M., 1997. Late Miocene anurans from Polgardi (Hungary). In: Bohme, W., ...
... the International Symposium “Geology and 143 Metallogeny of the Dinarides and the Vardar Zone”. The Department of Natural, Mathematical and Technical Sciences. Collections and Monographs 1. Pyron, R.A., Burbrink, F.T., Wiens, J.J. 2013. A phylogeny and revised classification of Squamata ...
... Bavaria) and their implications for environment reconstruction and palaeoclimate. Paläontologische Zeitschrift, 84(1): 3–41. Böhme M, Ilg A 2003. fosFARbase, www.wahre–staerke.com (accessed 20 December 2018). Böhme, M., Ilg, A., Winklhofer, M. 2008. Late Miocene “washhouse” climate in Europe. Earth Planetary ...Dragana D. Đurić. Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija, Beograd : Rudarsko-geološki fakultet, 2019
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Threshold-induced correlations in the Random Field Ising Model
... in general, the external waiting Figure 3. Collapse of duration and waiting time distributions. �e distributions correspond to subavalanches that are above threshold Vth, and are collected in RFIM simulations of 3D systems with lattice sizes L and disorders >R Rc eff , given in legends and satisfying ...
... In Spin Glasses and Random Fields, edited by Young, A. P. (World Scienti�c, Singapore, 1998). 3. Sethna, J. P., Dahmen, K. A. & Perković, O. In �e Science of Hysteresis, edited by Bertotti, G. & Mayergoyz, I. (Academic Press, Amsterdam, 2006). 4. Durin, G. & Zapperi, S. In �e Science of Hysteresis ...
... In Spin Glasses and Random Fields, edited by Young, A. P. (World Scientific, Singapore, 1998). 3. Sethna, J. P., Dahmen, K. A. & Perkovi¢, O. In The Science of Hysteresis, edited by Bertotti, G. & Mayergoyz, I. (Academic Press, Amsterdam, 2006). 4. Durin, G. & Zapperi, S. In The Science of Hysteresis (eds ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin
Joni prelaznih metala u kombinaciji sa različitim ligandima nude veliki broj mogućnosti za ispitivanje potencijalnih bioaktivnosti. Među jonima prelaznih metala, bakar je poznat kao endogeni metal za ljude, sa karakterističnim biološkim redoks aktivnostima i relativno jakim afinitetom za nukleobaze. Kompleksi bakra ispoljavaju svoju antitumornu aktivnost na nekoliko različitih načina, generišu veliku količinu ROS, što uzrokuje oksidativno oštećenje mitohondrija i biomakromolekula. Nađeno je da kompleksi bakra(II) imaju umeren do dobar afinitet vezivanja sa DNK, uglavnom putem interkalacije.Angelina Petrović, Aleksandar Mijatović, Rada Baošić, Jovana Bogojeski. "Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin" in 6. Konferencija mladih hemičara Srbije, Srpsko hemijsko društvo (2018)
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Geonasleđe Golije i Peštera
Ljiljana V. Grujičić-Tešić (2017-09-01)Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...... (eds.): The trubiditic basins of Serbia. Serbian Academy of Sciences and Arts Department of Natural & Mathematical Sciences. 61. pp.25–64. Dixon, G. (1995): Aspects of Geoconservation in Tasmania: A Preliminary Review of Significant Earth Features. Report to the Australian Heritage Commission. Parks ...
... On the terrestrial and freshwater mollusks from Neogene of Western Serbia. Geology and metalogeny of the Dinarides and the Vardar Zone. Academy of Sciences and Arts of the Republic of Srpska. Banja Luka–Serbian Sarajevo. pp. 219–224. Prysjazhnjuk, V. (2008): Terrestrial and freshwater molluscs ...
... Geodiversity: A new paradigm for valuing and conserving geoheritage. Geoscience Canada. 35. pp. 51 - 59 Gray, M., Gordon, J. E. and Brown, E. J. (2013): Geodiversity and the ecosystem approach—the contribution of geoscience in delivering integrated environmental management’. Proceedings of the G ...Ljiljana V. Grujičić-Tešić. "Geonasleđe Golije i Peštera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2017-09-01)
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Quantitative landslide risk assessment in the city of Tuzla
In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...... field reports, while all other inputs, including geological, geomorphologic and environmental factors were coming from a separate detailed study on flooding and landsliding hazard in the City of Tuzla. The inventory of element at risk, in this case the housing sector, represented by weighted population ...
... factors as proxies for landsliding process propagation, including geological, geomorphologic and environmental factors, as well as synthetic GIS-based derivatives; splitting the area into training and testing/validating parts; training the Machine Learning algorithm, Support Vector Machines in ...
... geomorphologic and environmental data. These were subsequently supplemented with dynamic input, represented by the specific rainfall map, to allow for a quasi-hazard modeling. 3.1 Geological factors Geological factors were extracted from the engineering geological map at 1:10000 scale and included ...Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović. "Quantitative landslide risk assessment in the city of Tuzla" in SCG-Xiii International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics and Geotechnical Engineering (2021)
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Development of terminological resources for expert knowledge: a case study in mining
Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić. "Development of terminological resources for expert knowledge: a case study in mining" in Knowledge Management Research & Practice, Palgrave Macmillan (2015). https://doi.org/10.1057/kmrp.2015.10
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Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species
Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić. "Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species" in Nanotechnology, IOP Publishing (2019). https://doi.org/10.1088/1361-6528/ab3ca2
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A Description of Morphological Features of Serbian: a Revision using Feature System Declaration
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...... tense, voice and aspect, as usual in LADL morphological dictionaries in general. Constraints specify which forms are used with these verbal features, and which of them are realized as simple or compound. For that reason constraints for verbs are numerous. However, MULTEXT-East attributes and values can ...
... Slovakia, 15-16 April, 2009. Metalanguage and encoding scheme design for digital lexicography : innovative solutions for lexical entry design in Slavic lexicography: proceedings. Bratislava: L'. Štúr Institute of Linguistic, Slovak Academy of Sciences, 2009, str. 59-70. ISO. (2007) ISO 24610-2:2007 ...
... applicable to all PoS, natural gender, natural number and changeability of the number. Besides that we have added for each of the four main grammatical categories a binary category that states whether grammatical category is fixed or not for nouns in general. It should be noted that this is the property ...Cvetana Krstev, Ranka Stanković, Vitas Duško. "A Description of Morphological Features of Serbian: a Revision using Feature System Declaration" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta : European Language Resources Association (2010)
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Content and mode of occurrences of rare earth elements in the Zagrad karstic bauxite deposit (Nikšić area, Montenegro)
Radusinović Slobodan, Jelenković Rade, Pačevski Aleksandar, Simić Vladimir, Božović Darko, Holclajtner-Antunović Ivanka, Životić Dragana (2017)Radusinović Slobodan, Jelenković Rade, Pačevski Aleksandar, Simić Vladimir, Božović Darko, Holclajtner-Antunović Ivanka, Životić Dragana. "Content and mode of occurrences of rare earth elements in the Zagrad karstic bauxite deposit (Nikšić area, Montenegro)" in Ore Geology Reviews 80, :Elsevier (2017): 406-428. https://doi.org/10.1016/j.oregeorev.2016.05
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Laboratory evaluation of diatomaceous earth deposits mined from several locations in central and southeastern Europe as potential protectants against coleopteran grain pests
Athanassiou Christos, Kavallieratos Nickolas, Vayias Basileios, Tomanović Željko, Petrović Anđelko, Rozman Vlatka, Adler Cornel, Korunić Zlatko, Milovanović Dragan (2011)Athanassiou Christos, Kavallieratos Nickolas, Vayias Basileios, Tomanović Željko, Petrović Anđelko, Rozman Vlatka, Adler Cornel, Korunić Zlatko, Milovanović Dragan. "Laboratory evaluation of diatomaceous earth deposits mined from several locations in central and southeastern Europe as potential protectants against coleopteran grain pests" in Crop Protection 30 no. 3, London, England:Elsever Sci Ltd, The Boulevard, Lanford Lane, Kidlington, Oxford OX5 1GB, Oxon, England (2011): 329-339. https://doi.org/10.1016/j.cropro.2010.10.004
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A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra
Tamara Đorđević, Ljiljana Karanović (2010)A new monoclinic polymorph of Ba(AsO3OH) was synthesized under hydrothermal conditions. It represents a previously unknown structure type. Its crystal structure was determined from a racemic twin using single-crystal X-ray diffraction data collected at 120 and 293 K [space group P21, a=7.2149(14)/7.2370(2), b=7.7028(15)/7.7133(2), c=21.7385(43)/21.8079(5) Å, β=95.95(3)/96.073(1)1, V=1201.6(4)/1210.51(5) Å3, Z=12]. The crystal structure of P21-Ba(AsO3OH) has a layered character and is built up of four types of regularly alternating layers parallel to (0 0 1). Every AsO3OH tetrahedron is chelating to two Ba atoms and ...Ba(AsO3OH), хидротермална синтеза, структурна анализа монокристала, Раманска спектроскопија, инфрацрвена спектроскопија, водоничне везе, хидрогенарсенати земноалкалних металаTamara Đorđević, Ljiljana Karanović. "A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra" in Journal of Solid State Chemistry, Elsevier BV (2010). https://doi.org/10.1016/j.jssc.2010.09.027