Претрага
968 items
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Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia
Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović . "Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia" in Groundwater: Occurrence and Significance for Human Health, CRC Press, Balkema - Taylor & Francis Group (2014)
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Electronic Dictionaries - from File System to lemon Based Lexical Database
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 ...... instance, three senses of jezik), and link a lexical entry with an ontology by connecting the set of markers denoting one sense with individual markers in the SenseProperties table.4 SenseRelation provides for connecting various senses with others that are narrower, broader, synonymous and so on, ...
... generate its variation with suffix -irati and an inverse marker – VAR=IratiArisati (e.g. komentirati). This rule is in a group with five other rules: VAR=ArisatiIrati N N that generates a noun variation, VAR=ArisatiIrati A A that gen- erates an adjective variation and three others with inverse markers ...
... additional improvements – automatic generation of dictionary candidates, with their lexical and derivation variants. This automatic procedure enabled migration of all 26 simple word and 15 multi-word unit Serbian dictionary files with more than 150,000 lexical entries. Keywords: lexical database, lemon ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić. "Electronic Dictionaries - from File System to lemon Based Lexical Database" in Proceedings of the 11th International Conference on Language Resources and Evaluation - W23 6th Workshop on Linked Data in Linguistics : Towards Linguistic Data Science (LDL-2018), LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental ChemistryLjiljana Vasić, Laszlo Palcsu, Huang Fen. "Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8294-0
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Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)
Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu. "Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00550-3
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... on the improvement of a set of features (widely accessible remote sensing data supplemented with geophysical data and tectonic settings; distance to fault map) with the RF and KNN algorithms in areas with dense vegetation and complex geological units below the surface. An added element of this ...
... obvious, with two distinct outliers exhibiting an overall higher precision. Specifically, the RF models that employ the A dataset with 100 and 250 trees demonstrate this trend. The F1 score is a crucial evaluation metric for assessing the overall performance of a model and is on par with the AUC ...
... ophiolite class, with the RF_C_100 model exhibiting a slightly higher AUC value. The precision metric exhibits a significant contrast, with RF_C_100 demonstrating a 9% higher precision. In general, the evaluation metrics of the RF_C_100_5MI model are most compatible with the evalua- tion ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeSaša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac. "3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s12665-013-2591-9
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Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?
... weighing 36.2 kg, known as “The Great Triangle”. Nugget model is golden metallic in colour with a shape similar to a rectangular triangle, more or less flat with an average thickness of 8 cm, with a length of about 37 cm and height of about 27.5 cm. In order to enrich the information of gold ...
... 1842. At the time of its invention, the whole area of Zlatoust was the most significant in the world with its gold mines (JONES, 1844). Today, this unique native gold nugget adorns showcases with numerous unique exhibits in the Diamond Fund display in Moscow, Russia, Kremlin. The gold nugget ...
... Collection of Rocks and Minerals), but with no information of the number of the replica made, and the type and manner of material that was used for covering. Result and conclusion The data obtained by EDS analysis show that the gypsum model is covered with gold leaf, which was expected according ...Alena Zdravković, Maja Milošević, Ivana Jelić. "Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
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Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... aliquots of the water samples with two kinds of solvents – n-pentane and dichloromethane.22 Three extraction steps were performed in a separating funnel with 50 mL of the solvent. The first one with n-pentane, the second one with dichloromethane and the third one with dichlo- romethane after addition ...
... is the second longest river in Europe with a length of about 2 800 km.13 Its catchment area covers 801 500 km2, with approximately 81 million inhabitants in 19 countries.14 The Danube flows through four capitals (Vienna, Budapest, Bratislava and Belgrade) with 0.5 million to 2.5 million inha- bitants ...
... conditioned with 5 mL of n-hexane, 5 mL of ethyl acetate and 5 mL of methanol and washed with 10 mL of Milli-Q water. Then 400 mL of river water was loaded under moderate flow (3 mL min-1). SPE cart- ridge was subsequently dried under vacuum for 20 min and then the hormones were eluted with 6 mL of a ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Nonequilibrium athermal random-field Ising model on hexagonal lattices
Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević. "Nonequilibrium athermal random-field Ising model on hexagonal lattices" in Physical Review E, American Physical Society (APS) (2021). https://doi.org/10.1103/PhysRevE.103.032147
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WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)... municipalities, with the most important supporting information, the possibility of linking with the previous report, the report on abandoned mines, with evaluations and evaluation criteria. Report on ranked abandoned mines with evaluations and a list of business partners with and without registered ...
... compliance with existing legal regulations. The geodatabase model for this application has been developed using UML and CASE tool Microsoft Visio featuring an interface with ArcGIS. The WebGIS application was developed using GeoServer, an open source tool in the Java programming language, with integrated ...
... METHODOLOGY 2.1 Experience in the world The development of the database has been harmonized with the existing international and European trends and standards (ISO 19115 and ISO 19119) [1]. With the adoption of Directive 2007/2 / EC [2] by the European Parliament and the Council of Europe in ...Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina" in Proceedings of the 5th International Symposium Mining And Environmental Protection,June 10-13,2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)
Saša Ivanišević, Dejan Radivojević (2018)Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...Saša Ivanišević, Dejan Radivojević. "Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-0084.1
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... decrease exponentially with increased AD volumetric participation. The critical ratio at which the uniaxial compressive strength of the composite sample equals the strength of the uniform AD sample was at a percentage of 30% AD. Comparison of the obtained exponential equation with practical suggestions ...
... area. Composite samples with the 10%, 20%, and 30% participation of weaker material of the overall sample height were prepared for the study, while gypsum was used as a bonding material between rock material discs. Liu et al. [5] examined composite samples comprised of rocks with different strengths and ...
... pit slope consisting of dacite with microscopic images of the material: (a) altered dacite and (b) dacite. Exploration works were based primarily on exploratory drilling, geological mapping, and laboratory tests. During these studies, four boreholes were drilled, with a total drilling length of 535 ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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WS4LR - a Worksation for Lexical Resources
... compound lemma is inflected in order to agree in gender with the noun kafa. Figure 3. The form for compound entries 3.3 Wordnet Manipulation This module supports the manipulation of wordnets. The user can work with one wordnet only, or with two wordnets, which can then be synchronized using ...
... wordnets + Synsets retrievement using various methods + Navigation by following hypernym/hyponym relations + Copy of synsets with translation support + Exchange of information with morphological dictionaries + Production of Intex/Unitex graphs + Consistency checks on wordnets 1693 Serbian where ...
... dictionary entries starting or ending with a search string. The later option illustrated in Figure 2 is particularly useful when the inflectional code of a new lemma is being established, since it depends on its ending. Figure 2. Retrieval of all verbs ending with sxetati: they all belong to two ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović. "WS4LR - a Worksation for Lexical Resources" in Proceedings of the Fifth Interantional Conference on Language Resources and Evaluation, Genoa, Italy, May 2006, ELRA - European Language Resources Association (2006)
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Projection of SO2 emissions in coal power plants in Serbia
Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...... Southeast Europe is characterized with old coal power plants, 31 active 31 coal-fired thermal power plants with 17813 MW of installed capacity. The thermal energy capacities of the Republic of Serbia consist of six thermal power plants, with 17 active thermo-blocks, with a total installed capacity of 4400 ...
... of the European Union and a comparison with SEE countries were collected. The calculation of emissions of SO» for two thermoblocks of the thermal power plant Kostolac, Serbia was carried out. Comparisons were made with the emitters from EU countries with a special Jocus on SEE countries. The p ...
... Serbia is located, along with Germany and Poland, are the largest producers of solid fuels in Europe. 130 of Thermal power plants are in Germany, Poland and SEE region. The dominant fuel for electricity production is still coal. Europe has 243 active coal-fired power plants, with 600 blocks, and 147477 ...Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac. "Projection of SO2 emissions in coal power plants in Serbia" in 9th International Conference Mining and environmental protection, Sokobanja 24-27th May 2023., Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research
магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија... investigative polygon with dimen- sions of 25 x 25 m was used and the data was acquired using an Overhauser GSM-19GW (GEMLink) gradiometer, with and without the Global Positioning System. To obtain a regular data grid, the sam- pling was conducted at a 1s interval, and with a distance between the ...
... of instruments has kept up with developments in modern physics, resulting in present-day magnetometers that are accurate up to 0.02 nT. One of the instruments with this degree of ac- curacy is the Overhauser GSM-19GW magnetom- eter from the Canadian company GEMLink, with a gradient tolerance up to ...
... them, an investigative polygon with dimensions of 25 x 25 m was formed above the previously identifi ed archaeological anomalies at the archaeological site “Kremenite Njive”, near Barajevo, Republic of Serbia (Vasiljevic 2013). Here the data was col- lected with the gradiometer in walking mode, ...Mirko Petković, Vesna Cvetkov, Branislav Sretenović. "Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research" in Arheologija i prirodne nauke (2014)
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Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands
Studije u oblasti antikancerogenih karakteristika jedinjenja rutenijuma(III/II) izazivaju veliku pažnju već nekoliko godina otkako su neka od njih kao što su KP1019 (indazolijum-tetrahloridobis(H-indazol)rutenat(III)) i NAMI-A (imidazolijum) -trans-tetrahlorido(dimetilsulfoksid)indazolerutenat(III)) dostigao nivo kliničkog ispitivanja. Kompleksi rutenijuma u reakciji sa molekulom DNK formiraju prvenstveno gvanin- i adenin-adukt, kao komplekse platine. Takođe, nekoliko studija ukazuje na veoma jake interakcije sa proteinima. Međutim, kompleksi Ru(III/II) pokazuju generalno manje toksične efekte od lekova platine(II).1 Proučavali smo kinetiku reakcija supstitucije kompleksa [Ru(terpi)(bipi)Cl]Cl sa biološki važnim ligandima: dimetilsulfoksidom, gvanozin-5’-monofosfatom, ...Aleksandar Mijatović, Biljana Petrović, Ratomir Jelić, Živadin Bugarčić. "Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands" in EuroAnalysis 16 - Challenges in Modern Analytical Chemistry, Belgrade : Division of Analytical Chemistry of the Serbian Chemical Society (2011)