Претрага
221 items
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Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Fuzzy Model for Risk Assessment of Machinery Failures | Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković | Symmetry ...
... symmetryS S Article Fuzzy Model for Risk Assessment of Machinery Failures Dejan V. Petrović 1,* , Miloš Tanasijević 2 , Saša Stojadinović 1, Jelena Ivaz 1 and Pavle Stojković 1 1 Technical Faculty in Bor, University of Belgrade, VJ 12, 19210 Bor, Serbia; sstojadinovic@tfbor.bg.ac.rs (S.S.); ...
... com/journal/symmetry symmetry (mort, Article Fuzzy Model for Risk Assessment of Machinery Failures 1,* 2 Dejan V. Petrovié , SaSa Stojadinovié 1, Jelena Ivaz 1 and Pavle Stojkovi¢ ! , Milos Tanasijevi¢ 1 Technical Faculty in Bor, University of Belgrade, VJ 12, 19210 Bor, Serbia; sstojadinovic@tfbor ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
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Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes
... Ministry of Education, Science and Technological Development, Republic of Serbia. Author Contributions: Jelena Malenović Nikolić and Dejan Vasović conceived and designed the structure of the survey; Jelena Malenović Nikolić and Ivica Ristović performed the application of CPM method and analyzed the empirical ...
... energies Article Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes Jelena Malenović Nikolić 1,*, Dejan Vasović 1, Ivana Filipović 2, Stevan Mušicki 3 and Ivica Ristović 2 1 Faculty of Occupational Safety in Niš, University ...Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović . "Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes" in Energies (2016). https://doi.org/https://doi.org/10.3390/en9121071
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Modification of the aluminosilicates surface
Milićević Sonja, Milošević Vladan, Povrenović Dragan, Vučinić Dušica, Pavićević Vladimir, Čarapić Jelena (2012)Milićević Sonja, Milošević Vladan, Povrenović Dragan, Vučinić Dušica, Pavićević Vladimir, Čarapić Jelena. "Modification of the aluminosilicates surface" in Modification of the aluminosilicates surface, Bor, Serbia: (2012): 187-190
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Evolution of the Alpine Tethys (Sava) suture zone in Fruška Gora Mountains (N Serbia): from orogenic building to tectonic omissions
Toljić Marinko, Matenco Liviu, Đerić Nevenka, Milivojević Jelena, Gerzina Nataša, Stojadinović Uroš (2010)Toljić Marinko, Matenco Liviu, Đerić Nevenka, Milivojević Jelena, Gerzina Nataša, Stojadinović Uroš. "Evolution of the Alpine Tethys (Sava) suture zone in Fruška Gora Mountains (N Serbia): from orogenic building to tectonic omissions" in Geophysical Research Abstracts, 7th EGU General Assembly, 02-07 May 2010, Vienna, Austria 12, Vienna:Copernicus on behalf of the European Geophysical Society (2010)
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Application of the VIKOR and FAHP multi-criteria optimisation methods for choosing the optimal groundwater control system: case of pumping station Bezdan 1 (Serbia)
Bajić Dragoljub, Polomčić Dušan, Ristić Vakanjac Vesna, Ratković Jelena, Čokorilo Ilić Marina (2017)Bajić Dragoljub, Polomčić Dušan, Ristić Vakanjac Vesna, Ratković Jelena, Čokorilo Ilić Marina. "Application of the VIKOR and FAHP multi-criteria optimisation methods for choosing the optimal groundwater control system: case of pumping station Bezdan 1 (Serbia)" in Proceedings of the national conference with international participation „Geosciences 2017“, Sofia:Bulgarian Geological Society (2017): 131-132
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An overview of the application of modern methods of hydrodynamic calculations for groundwater control systems of open cast mines in Serbia
Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Ristić Vakanjac Vesna, Čokorilo Ilić Marina (2017)Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Ristić Vakanjac Vesna, Čokorilo Ilić Marina. "An overview of the application of modern methods of hydrodynamic calculations for groundwater control systems of open cast mines in Serbia" in Proceedings of the national conference with international participation „Geosciences 2017“, Sofia:Bulgarian Geological Society (2017): 143-144
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DFT study of free radical scavenging activity of erodiol
Marković Zoran, Dorović Jelena, Dekić Milan, Radulović Milanka, Marković Svetlana, Ilić Marija (2013)Marković Zoran, Dorović Jelena, Dekić Milan, Radulović Milanka, Marković Svetlana, Ilić Marija. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers 67 no. 11, Slovakia:Slovak Academic Press Ltd. (2013): 1453-1461. https://doi.org/10.2478/s11696-013-0402-0
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Seasonal Variations of the Zapadna Morava River Water Quality
The water samples collected from four localities of the middle course of the Zapadna Morava River during 2020 were analyzed via the selected physicochemical parameters with the aim to estimate the quality of surface water. According to the results of selected physico-chemical parameters (pH, conductivity, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand), analyzed surface water show a good chemical status, while the values of nutrient content (nitrate, nitrite, ammonium ion, total phosphorus) indicated the poor chemical status especially ...Nebojša Đ. Pantelić, Jana S. Štrbački, Goran Marković, Jelena B. Popović-Đorđević. "Seasonal Variations of the Zapadna Morava River Water Quality" in Zbornik radova Savetovanja o biotehnologiji sa međunarodnim učešćem (Čačak, 12-13. mart 2021), University of Kragujevac, Faculty of Agronomy (2021). https://doi.org/10.46793/SBT26.357P
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The evolution of a key segment in the Europe–Adria collision: The Fruška Gora of northern Serbia
Toljić Marinko, Matenco Liviu, Ducea Mihai, Stojadinović Uroš, Milivojević Jelena, Đerić Nevenka (2013)Toljić Marinko, Matenco Liviu, Ducea Mihai, Stojadinović Uroš, Milivojević Jelena, Đerić Nevenka. "The evolution of a key segment in the Europe–Adria collision: The Fruška Gora of northern Serbia" in Global and Planetary Change 1 no. 103, Amsterdam:Elsevier (2013): 39-62
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Ecological potential of Epilobium dodonaei Vill. for restoration of metalliferous mine wastes
Ranđelović Dragana, Gajić Gordana, Mutić Jelena,Pavlović Pavle, Mihailović Nevena, Jovanović Slobodan (2016)Ranđelović Dragana, Gajić Gordana, Mutić Jelena,Pavlović Pavle, Mihailović Nevena, Jovanović Slobodan. "Ecological potential of Epilobium dodonaei Vill. for restoration of metalliferous mine wastes" in Environmental Engineering 95, Amsterdam, Netherlands :Elsevier (2016): 800-810. https://doi.org/http://dx.doi.org/10.1016/j.ec
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Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers
Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković (2017)The Visočica River rises in Bulgaria, on the Berovo Mountain. Its course in Bulgaria is 16.7 km long. It enters Serbia near the village of Donji Krivodol. Up to the village of Pakleštica, or the beginning of Lake Zavoj, its right-bank tributaries are the Krivodolštica, the Vodenička, the Rosomačka and the Dojkinačka. There are no left-bank tributaries. Among the tributaries, water levels and discharges are gauged only on the Dojkinačka River. The Vodenička had also been gauged but only ...... rivers;Хидрографске и хидролошке карактеристике Воденичке и Росомачке реке Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Hydrographic and hydrological characterization ...
... rivers;Хидрографске и хидролошке карактеристике Воденичке и Росомачке реке | Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković | Pirotski zbornik | 2017 | | 10.5937/pirotzbor1742001R http://dr.rgf.bg.ac.rs/s/repo/item/0002923 Дигитални репозиторијум Рударско-геолошког ...
... 5 DOI: 10.5937/pirotzbor1742001R изворни рад original work Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology, Belgrade HYDROGRAPHIC AND HYDROLOGICAL CHA ...Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković. "Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers" in Pirotski zbornik, Pirot : Narodna biblioteka Pirot (2017). https://doi.org/10.5937/pirotzbor1742001R
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Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... tal Impact of Tailing Ponds in Northern Kosovo and Metohija Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Application of a Method for Intelligent Multi-Criteria ...
... al Impact of Tailing Ponds in Northern Kosovo and Metohija | Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić | Energies | 2016 | | 10.3390/en9110935 http://dr.rgf.bg.ac.rs/s/repo/item/0005080 Дигитални репозиторијум Рударско-геолошког факултета У ...
... Tailing Ponds in Northern Kosovo and Metohija Gordana Milentijević 1, Blagoje Nedeljković 1, Milena Lekić 2,*, Zoran Nikić 3, Ivica Ristović 2 and Jelena Djokić 1 1 Faculty of Techinal Sciences, University of Pristina, 38220 Kosovska Mitrovica, Serbia; gordanamilentijevic@yahoo.com (G.M.); blagoje ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
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Crystallographic, spectroscopic, thermal and computational studies of polymeric cobalt(II)–mellitate complex with 2,2′-bipyridine
Orange single crystals of new polymeric cobalt(II) complex {[Co(bipy)(H2O)4]2[Co(μ-mell)(H2O)2]·10H2O}n, 1, were synthesized by slow evaporation method at room temperature (bipy = 2,2′-bipyridine, mell = hexaanion of mellitic acid) and its crystal structure was determined by single-crystal X-ray diffraction. The complex 1 was characterized based on elemental analysis, FTIR spectroscopy and thermal (TG/DTA) analysis followed by computational analysis of noncovalent interactions and quantum chemical calculations of interaction energies. In 1, two crystallographically different Co(II) atoms adopt a deformed octahedral geometry, ...Lidija Radovanović, Dušan P. Malenov, Marko V. Rodić, Aleksandar Kremenović, Jelena Rogan. "Crystallographic, spectroscopic, thermal and computational studies of polymeric cobalt(II)–mellitate complex with 2,2′-bipyridine" in Journal of Molecular Structure, Elsevier BV (2021). https://doi.org/10.1016/j.molstruc.2021.132202
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Град Охрид и Извештај о одржаним међународним конференцијама “SDEWES” и “BALWOIS” на Охриду (Македонија)
Представљан је рад SDEWES и BALWOIS конференције које су одржане нa Охриду. Дат је увид у рад и развој ових конференција, као и утисака и искустава учесника, представника Департмана за хидрогеологију, Рударско-Геолошког факултета. Акценат је стављен на секцију која се бави одрживим развојем водних ресурса, уз прилог о самом Охриду због његовог геолошког и хидрогеолошког значаја и чињенице да је познати туристички центар, седиште бројних конгреса и конференција из области вода, управо због своје интересантне историје и природних ...Драгољуб Бајић, Јелена Зарић, Весна Ристић Вакањац, Душан Поломчић, Марина Чокорило Илић. "Град Охрид и Извештај о одржаним међународним конференцијама “SDEWES” и “BALWOIS” на Охриду (Македонија)" in Записници Српског Геолошког Друштва за 2013. годину, Српско геолошко друштво (2014)
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Dating of alluvial sediments from borehole at the lower course of the Sava river and indications of the connection between their genesis and climate changes in the Pleistocene
David Mitrinović, Jelena Zarić, Oliver Anđelković, Gyorgy Sipos, Dušan Polomčić, Milan Dimkić (2019)This paper analyses the way in which Pleistocene climate change and glaciations in Dinaric Mountains was reflected in the deposition of alluvial sediments in the Sava river Valley, using a case study of Belgrade Groundwater Source (BGS), the largest and most downstream alluvial water supply source along the Sava river. A stratigraphic analysis of the Quaternary sediments from two boreholes on this site, based on sediment dating, lithological members identification, grain size distribution analysis was performed. Comparison with the ...Pleistocene, Alluvial deposits, Climato-lithostratigraphy, Sava river, Belgrade groundwater source, LuminescenceDavid Mitrinović, Jelena Zarić, Oliver Anđelković, Gyorgy Sipos, Dušan Polomčić, Milan Dimkić. "Dating of alluvial sediments from borehole at the lower course of the Sava river and indications of the connection between their genesis and climate changes in the Pleistocene" in Quaternary International, Elsevier BV (2019). https://doi.org/10.1016/j.quaint.2019.09.028
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Metodologija određivanja vremena i putanje zagađivača na primeru zaštite izvorišta podzemnih voda
Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Jelena Ratković, Marina Čokorilo Ilić (2018)Analiza vremena putovanja potencijalnog zagađivača do bunara izvorišta podzemnih voda predstavlja veoma bitan segment kod upravljanja i zaštite podzemnih voda. Ova metodologija se zasniva na simulaciji kretanja nereagujuće čestice sa podzemnim vodama i poroznom sredinom (“idealna” čestica). Rezultati hidrodinamičkog modela, kojim se vrši simulacija režima podzemnih voda, predstavljaju osnovu za model praćenja “idealne” čestice. Postoje različiti softveri koji se koriste u hidrogeološkoj praksi za analizu problema zagađivača. U ovom radu korišćen je numerički kod Modpath, dok je za simulaciju ...upravljnje podzemnim vodama, zaštita podzemnih voda, hidrodinamički model, metoda praćenja „idealne“ čestice, modflow, modpath.Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Jelena Ratković, Marina Čokorilo Ilić. "Metodologija određivanja vremena i putanje zagađivača na primeru zaštite izvorišta podzemnih voda" in Zbornik radova nacionalne konferencije sa međunarodnim učešćem ekoremedijacija i ekonomska valorizacija vodnih resursa-modeli i primena, Fakultet za primenjenu ekologiju Futura, Univerzitet Singidunum, Beograd (2018)
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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
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Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia
Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić (2019)groundwater management, hydrodynamic model, multiple-criteria decision making, open cast mine, groundwater source.0Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "Concept od predictive hydrodynamic calculations: An overview of the case studies from Serbia" in National Conference with international participation “Geosciences 2019”, Bulgaria, 2019, Sofia : Bulgarian Geological Society (2019)
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Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4
Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan (2022)In recent years, thermal decomposition studies of transition metal complexes with benzenepolycarboxylate ligands have become an area of a great importance due to the possibility of obtaining useful metal oxides with desirable electrical, magnetic and catalytic properties [1]. As a contrast to conventional methods for the preparation of metal oxides, such as hydrothermal or sol–gel treatment, thermolysis is faster, more efficient ...Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan. "Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4 " in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Banja Luka, Republic of Srpska, B&H, October 21st-22nd, 2022, University in Banjaluka, Faculty of Technology (2022)
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Electrodeposition of silver powder from nitrate electrolite
Ivanović Aleksandra, Dimitrijević Silvana, Dimitrijević Stevan, Trumić Biserka, Marjanović Vesna, Petrović Jelena, Vuković Nikola (2012)Ivanović Aleksandra, Dimitrijević Silvana, Dimitrijević Stevan, Trumić Biserka, Marjanović Vesna, Petrović Jelena, Vuković Nikola. "Electrodeposition of silver powder from nitrate electrolite" in Book of Abstracts from the XXII Congress of Chemists and Technologists of Macedonia, Ohrid, BJR Makedonija:Society of Chemists and Technologists of Macedonia (2012): 165-165