Претрага
566 items
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Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања
Бранко Костић, Ксенија Ераковић, Дејан Прелевић, Сабина Ковач, Драгана Животић. "Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања" in Записници Српског геолошког друштва (2023)
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Improving efficiency of thermal power plants through mine coal quality planning and control
Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...... Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Improving efficiency of thermal power plants through mine coal quality planning and control | Mirjana Banković, Dejan Stevanović ...
... 721-733 721 IMPROVING EFFICIENCY OF THERMAL POWER PLANTS THROUGH MINE COAL QUALITY PLANNING AND CONTROL by Mirjana V. BANKOVI] *, Dejan R. STEVANOVI] , Milica D. PEŠI] , Aleksandra Dj. TOMAŠEVI] , and Ljiljana R. KOLONJA Faculty of Mining and Geology, University of Belgrade, Belgrade ...Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja. "Improving efficiency of thermal power plants through mine coal quality planning and control" in Thermal Science, Vinča Institute of Nuclear Sciences (2018). https://doi.org/10.2298/TSCI170605209B
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Some examples of interactions between certain rare earth elements and soil
Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski. "Some examples of interactions between certain rare earth elements and soil" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC211006095N
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Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika
Dragana Đurić, Jelena Vukčević, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov . "Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: zbornik radova / Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, 28.02.2020., Beograd, Beograd : Srpsko arheološko društvo (2020)
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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 ...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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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers
Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...... FUZZY-BASED DECISION SUPPORT MODEL FOR EFFECTIVENESS EVALUATION – A CASE STUDY OF THE EXAMINATION OF BULLDOZERS Milos Tanasijevic1,*, Predrag Jovancic1, Dejan Ivezic1, Ugljesa Bugaric2 and Radisa Djuric3 1University of Belgrade, Faculty of Mining and Geology Belgrade, Serbia *Corresponding author’s e-mail: ...Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić. "A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers" in International Journal of Industrial Engineering: Theory, Applications and Practice (2019)
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Programsko rešenje BpUBS
Tomašević Aleksandra, Stevanović Dejan, Kolonja Ljiljana, Jovanović Mirjana, Stanković Ranka. "Programsko rešenje BpUBS" in 33039 (2012)
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Semantic Textual Similarity of Courses Based on Text Embeddings
This paper explores the application of textual embeddings to measure semantic similarity between educational courses’ curriculums, aiming to enhance the effectiveness of the next faculty accreditation. Leveraging state-of-the-art natural language processing techniques, we employ pre-trained embeddings to capture the semantic meaning of course descriptions. Our methodology involves transforming course curriculum texts into high-dimensional vector representations, enabling efficient and meaningful comparisons. We evaluate the proposed approach on a diverse dataset of course descriptions, employing established benchmarks for semantic textual similarity ...... Walle, T.: Semantic textual similarity of course materials at a distance- learning university. In: CŽSEDM e EDM (2020) Stanković, R., Krstev, C., Lazić, B., Škorić, M.: Electronic dictionaries-from file system to lemon based lexical database. In: 6th Workshop on Linked Data in Linguistic (LDL-2018) ...Olivera Kitanović, Aleksandra Tomašević, Mihailo Škorić, Ranka Stanković, Ljiljana Kolonja. "Semantic Textual Similarity of Courses Based on Text Embeddings" in Lecture Notes in Networks and Systems, Springer Nature Switzerland (2024). https://doi.org/10.1007/978-3-031-71419-1_27
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Concepts for Improving Machine Learning Based Landslide Assessment
... Bíl M, Müller I (2008) The origin of shallow landslides in Moravia (Czech Republic) in the spring of 2006. Geomorphology 99:246–253 Božović B, Lazić M, Sunarić D, Todorović B (1981) Prikaz stepena istraženosti i kritička analiza metodologije dosadašnjih istraživanja stabilnosti terena beogradskog ...
... 2013.17 Landis JR, Koch GG (1977) The measurement of observer agreement for categorical data. Biometrics 3:159–174 Lokin P, Pavlović R, Trivić B, Lazić M, Batalović K, Đurić U (2012) Belgrade landslide cadastre, XIV simpozijum iz Inženjerske geologije i Geotehnike, proceedings, Belgrade, Serbia, pp ...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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Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia
Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković (2022)Regional geochemical research of residual soil was conducted in an area of about 20,000 km2 in the region of Central and Western Serbia, where six metallogenetic zones and mining since ancient times have been documented. The geochemical background variation in the residual soil was established upon the contents, spatial pattern and natural background of potentially toxic elements (PTEs). The limits of natural background values (mg·kg-1) were determined by the integral method. Our data show that anomalous concentrations of As, ...Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković. "Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia" in Periodico di Mineralogia (2022). https://doi.org/10.13133/2239-1002/17042
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An insight into the evolution of the lithospheric mantle of south Saharan metacraton: Mantle xenoliths from Jabal Eghei Volcanic Complex, Libya
Bazaltni magmatizam, Osiromašenje omotača, Metasomatizam, Subkontinentalni omotač, Spinelski lerzolitVladica Cvetković, Maša Radivojević, Dejan Prelević, Marinko Toljić, Salah M. Turki . "An insight into the evolution of the lithospheric mantle of south Saharan metacraton: Mantle xenoliths from Jabal Eghei Volcanic Complex, Libya" in Journal of Volcanology and Geothermal Research, Elsevier (2022). https://doi.org/doi.org/10.1016/j.jvolgeores.2022.107691
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Kosmaj monzogranite: new data from Radovac creek samples
Bojan Kostić, Danica Srećković-Batoćanin, Milica Maletić, Dejan Prelević, Suzana Erić. "Kosmaj monzogranite: new data from Radovac creek samples" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine, Neum, 21.-23.09.2023., Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Uncertainty in open pit optimisation
Kolonja Božo, Stevanović Dejan, Pešić Georgiadis Milica, Banković Mirjana, Kolonja Ljiljana. "Uncertainty in open pit optimisation" in 5th International symposium Mining and environmental protection, Beograd:Faculty of Mining and geology, Belgrade (2015): 358-392
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Izbor tehnološkog postupka za izdvajanje azota iz prirodnogh gasa (Choise of technology for the separation of nitrogen from natural gas)
Danilović Dušan, Karović Maričić Vesna, Ivezić Dejan,Leković Branko, Crnogorac Miroslav. "Izbor tehnološkog postupka za izdvajanje azota iz prirodnogh gasa (Choise of technology for the separation of nitrogen from natural gas)" in Međunarodni simpozijum- Rudarstvo i geologija danas, Beograd: (2017): 346-350. https://doi.org/10.25075/SI.2017.34
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Анализа постојећих домаћих грејних каблова и развој специфичног за примену у нафтној индустрији
Даниловић Душан, Каровић-Маричић Весна, Баталовић Веселин, Ивезић Дејан, Живковић Марија. "Анализа постојећих домаћих грејних каблова и развој специфичног за примену у нафтној индустрији" in Техника-Електротехника no. 4, Beograd:Savez inženjera i tehničara Srbije (2011): 606-610
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Energetski indikatori održivog razvoja opština istočne Srbije
Ivezić Dejan, Živković Marija, Tanasković Toma, Danilović Dušan, Karović-Maričić Vesna. "Energetski indikatori održivog razvoja opština istočne Srbije" in Tehnika, Energija, Ekologija-Energetika 13 no. 1, :Savez energetičara (2010): 75-79
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Geodynamic significance of ultramafic xenoliths from Eastern Serbia: Relics of sub-arc oceanic mantle?
Cvetković Vladica, Downes Hilary, Prelević Dejan, Lazarov Marina, Resimić-Šarić Kristina. "Geodynamic significance of ultramafic xenoliths from Eastern Serbia: Relics of sub-arc oceanic mantle?" in Journal of Geodynamics 43, Beograd :Srpsko geološko društvo (2007): 504-527. https://doi.org/10.1016/j.jog.2006.11.003
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Magmatic response to slab tearing: Constraints from the afyon alkaline volcanic complex, Western Turkey
Prelević Dejan, Akal Cüneyt, Romer Rolf, Mertz-Kraus Regina, Helvaci Cahit. "Magmatic response to slab tearing: Constraints from the afyon alkaline volcanic complex, Western Turkey" in Journal of Petrology 56 no. 3, Oxford, United Kingdom :Oxford University Press (2015): 527-562. https://doi.org/10.1093/petrology/egv008
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Zbornik radova XIV srpskog simpozijuma o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 17-20. maj 2012. godine
Stevanović Zoran, Milenić Dejan, Ristić-Vakanjac Vesna, Polomčić Dušan, Jemcov Igor. Zbornik radova XIV srpskog simpozijuma o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 17-20. maj 2012. godine, Beograd:Univerzitet, Rudarsko-geološki fakultet, 2012: 642