Претрага
2293 items
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Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic
This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композицијаMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović. "Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic" in Energies, MDPI AG (2022). https://doi.org/10.3390/en15186786 М23
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Determining the groundwater movement velocity using cross-correlation analysis: Velika Morava alluvium case study
Milan Kresojević, Vesna Ristić Vakanjac, Dušan Polomčić, Boris Vakanjac, Dragan Trifković, Jugoslav Nikolić (2024)Monitoring of water levels and flow rates of the Velika Morava River, due to its significance for the Republic of Serbia, was established over 100 years ago at the profiles of Ljubičevski Most and Ćuprija. This was followed a year later by the activation of the Varvarin monitoring station, then in 1935 by the Žabarski Most, and in 1952 by the Bagrdan station. Groundwater monitoring started in 1977 with 12 piezometers and the network was gradually expanded to include ...režim površinskih i podzemnih voda, kroskorelacione analize, brzina kretanja podzemnih voda, Velika MoravaMilan Kresojević, Vesna Ristić Vakanjac, Dušan Polomčić, Boris Vakanjac, Dragan Trifković, Jugoslav Nikolić. "Determining the groundwater movement velocity using cross-correlation analysis: Velika Morava alluvium case study" in Review of the Bulgarian Geological Society, Bulgarian Geological Society (2024). https://doi.org/10.52215/rev.bgs.2024.85.3.210 М23
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Keyword-Based Search on Bilingual Digital Libraries
This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović. "Keyword-Based Search on Bilingual Digital Libraries" in Semantic Keyword-Based Search on Structured Data Sources - Second COST Action IC1302 International KEYSTONE Conference, IKC 2016, Springer (2017). https://doi.org/10.1007/978-3-319-53640-8_10 M14
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Temperature induced evolution of nanostructured Ni0.9Zn0.1O
Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo (2010)The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure ...Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo. "Temperature induced evolution of nanostructured Ni0.9Zn0.1O" in Journal of Applied Crystallography no. 43, Denmark: Blackwell Munksgaard (2010). https://doi.org/10.1107/S0021889810019163 M21
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Business Models for Small-scale Biomass Projects Development
Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...Dejan Ivezić, Miodrag Gluščević, Marija Živković. "Business Models for Small-scale Biomass Projects Development" in 19th International Conference on Thermal Science and Engineering of Serbia, Niš : Faculty of Mechanical Engineering (2019) М33
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The impact of the Covid-19 pandemic on the economy, water resources and sustainable development
Milan Tucaković, Dragoljub Bajić, Dušan Polomčić. "The impact of the Covid-19 pandemic on the economy, water resources and sustainable development" in The impact of the Covid-19 pandemic on the economy, resources and sustainable development, Megatrend univerzitet Beograd, Fakultet za menadžment Zaječar (2022) М14
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DFT study of free radical scavenging activity of erodiol
Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers, Springer Science and Business Media LLC (2013). https://doi.org/10.2478/s11696-013-0402-0 М22
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Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024) М33
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Research on influence of track stiffness on development of rail squat defects
This paper presents research aiming to establish the relationship between track stiffness and the appearance and development of squat defects on running rails. Uneven incidence of squat defects was observed on the rails of the investigated main transit track in arailway station. Inspection of track support conditions was conducted using an electrometric method. The comparative analysis of the research results indicated a correlation between the incidence of squats and the changes in track support stiffness. The electrometric profiles and ...Milica Mićić, Zdenka Popović, Luka Lazarević, Dejan Vučković, Ljiljana Brajović. "Research on influence of track stiffness on development of rail squat defects" in Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, SAGE Publications (2024). https://doi.org/10.1177/09544097241306463 М23
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Geological objects and phenomena as an integral part of natural and cultural heritage of the sity of Belgrade
Rundić Ljupko, Knežević Slobodan, Banjac Nenad, Ganić Meri, Milovanović Dragan, Rabrenović Dragoman (2010)Rundić Ljupko, Knežević Slobodan, Banjac Nenad, Ganić Meri, Milovanović Dragan, Rabrenović Dragoman. "Geological objects and phenomena as an integral part of natural and cultural heritage of the sity of Belgrade" in Зборник радова 15. конгреса геолога Србије са међународним учешћем, Београд, [26-29 мај] 2010. = Proceedings of the 15th Congress of Geologists of Serbia with International Participation, Belgrade [26-29 May] 2010, Beograd:Srpsko geološko društvo, Savez geoloških inženjera i tehničara Srbije, geološki Institut Srbije, Rudarsko geološki fakultet Univerziteta u Beogradu (2010): 711-717 M63
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Asset management and condition monitoring on maintenance of mining equipment lignite mines
Predrag Jovančić (2016)Maintenance strategy, once set, is not permanent. This strategy should be adapted and altered according to the findings, achieved results, variation of mine product prices, changes in the region etc. On the other hand, maintenance strategy should be: safe operation, higher productivity, reduced costs and functionality of complete system. Asset management represents activities through which mine achieves the optimal and sustainable management of its property, in order to meet the plan - realization of production with optimized costs. Therefore, ...Predrag Jovančić. "Asset management and condition monitoring on maintenance of mining equipment lignite mines" in 13th International symposium Continuous Surface Mining ISCSM 2016, 12-14 September 2016, Belgrade – Serbia, Belgrade : Yugoslav Opencast Mining Committee (2016) М31
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Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings
Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović. "Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024) М34
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Mineralogy, chemistry, and distribution of selected trace elements in coal and shale from the Ibar Basin (South Serbia)
Željana Novković, Nenad Nikolić, Nevena Andrić-Tomašević, Violeta Gajić, Mercedes Suárez, Emilia García-Romero, Vladimir Simić, Dragana Životić (2024)Željana Novković, Nenad Nikolić, Nevena Andrić-Tomašević, Violeta Gajić, Mercedes Suárez, Emilia García-Romero, Vladimir Simić, Dragana Životić. "Mineralogy, chemistry, and distribution of selected trace elements in coal and shale from the Ibar Basin (South Serbia)" in Thermal Science, National Library of Serbia (2024). https://doi.org/10.2298/TSCI240405143N М23
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Energy Mining And Sustainable Development
Ristović Ivica (2010)Ristović Ivica. "Energy Mining And Sustainable Development" in Proceedings of 3rd International Symposium ENERGY MINING ER 2010, Belgrade Serbia:FMG, Belgrade (2010): 1-6 M31
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Paleomagnetism of the Latest Oligocene-Miocene extrusive igneous rocks from the Vardar zone and from the Serbian part of the Pannonian base
Lesić Vesna, Márton Emo, Cvetkov Vesna, Knežević, Tomić Dragana. "Paleomagnetism of the Latest Oligocene-Miocene extrusive igneous rocks from the Vardar zone and from the Serbian part of the Pannonian base" in The 4th International Workshop on the Neogene from the Central and South-Eastern Europe, Slovak Republic, Abstracts and Guide of Excursion, September, 12 – 16, 2011 Banská Bystrica, Slovak Republic, Banská Bystrica:Faculty of Natural Sciences, Matej Bel University (2011): 27-28 M34
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Influence of GPS telemetry on increasing the energetic efficiency and decreasing technical technological risks at open pit mines
Vujić Slobodan, Miljanović Igor, Milutinović Aleksandar, Gajić Grozdana, Petrovski Aleksandar, Josipović Pejović Milena (2011)Vujić Slobodan, Miljanović Igor, Milutinović Aleksandar, Gajić Grozdana, Petrovski Aleksandar, Josipović Pejović Milena. "Influence of GPS telemetry on increasing the energetic efficiency and decreasing technical technological risks at open pit mines" in Proceedings of the 4th Balkan Mining Congress BALKANMINE 2011, 18-20.10.2011 - no. -, Ljubljana, Slovenia:Velenje Coal Mine, Slovenia, University of Ljubljana, Faculty of Natural Sciences and Engineering (2011): 273-276. https://doi.org/- M33
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Calculation for the system of wells for protecting the open pit lignite mine Radljevo North from groung waters
Поломчић Душан, Шубарановић Томислав, Димитријевић Бојан, Петковић Владимир. "Calculation for the system of wells for protecting the open pit lignite mine Radljevo North from groung waters" in Proceedings of the XIV International conference of the open and underwater mining of minerals, Varna, Bulgaria:Scientific and technical union of mining, geology and metallurgy Bulgaria (2017): 355-360 M33
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Results of Laboratory geotechnical investigationsfor project of bridge at the Ada in Belgrade
Majstorović Jelena, Šubaranović Tomislav, Dimitrijević Bojan, Ilić Saša. "Results of Laboratory geotechnical investigationsfor project of bridge at the Ada in Belgrade" in Proceeding of the VIII International geomechanics Conference, 2-6 July 2018, International House of cientists „Fr. J. Curie“, Resort „St.St. Constantine and Elena“, Varna , Bulgaria, Varna , Bulgaria:Scientific and technical union of mining, geology and metalurgy & Federation of the scientific engineering unions in Bulgaria (2018) M33
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Magneto-biostratigraphy and paleoenvironments of the Miocene freshwater sediments of the Sarajevo-Zenica Basin
Sant Karin, Andrić Nevena, Mandic Oleg, Demir Vedad, Pavelić Davor, Rundić Ljupko, Hrvatović Hazim, Matenco Liviu & Krijgsman Wout (2018)Sant Karin, Andrić Nevena, Mandic Oleg, Demir Vedad, Pavelić Davor, Rundić Ljupko, Hrvatović Hazim, Matenco Liviu & Krijgsman Wout. "Magneto-biostratigraphy and paleoenvironments of the Miocene freshwater sediments of the Sarajevo-Zenica Basin" in Palaeogeography, Palaeoclimatology, Palaeoecology 506, Amsterdam, the Netherlands:Elsevier (2018): 48-69 M21a
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Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage
Maja Milošević, Biljana Đorđević, Alena Zdravković . "Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage" in 9th International Conference Mineralogy and Museums, Sofia, Bulgaria, Earth and Man National Museum and Bulgarian Mineralogical Society (2021) М34