Претрага
633 items
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Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema
Svetlana M. Štrbac-Savić (2016-06-10)Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija... operational efficiency refers to the length of time until mineral assets are transformed to money. Peak operational efficiency occurs when the right combination of mineral deposit characteristics, human resources, mining technology, and mineral processing come together to optimize mining performance ...
... dobijanje minerala. Ona posebno koristi prednost razliĉitih fiziĉko-hemijskih svojstava površine minerala, njihovu vlaţnost, koja moţe biti prirodno svojstvo ili veštaĉki promenjena hemijskim reagensima. Promenom hidrofobnosti ili hidrofilnosti stanja njihove površine, ĉestice minerala suspenzovane ...
... vazduha prolaze kroz pulpu sve do njenog površinskog dela i formiraju skramu, koja se zajedno sa prilepljenim hidrofobnim mineralima uklanja. Talog koji sadrţi hidrofilne minerale se ulanja sa dna floatacijske ćelije. U skladu sa tim, sve vrednosti intervala [a, b] su jednako verovatne, pa se koristi ...Svetlana M. Štrbac-Savić. "Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-10)
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Geotechnical Conditions of Industrial Waste Landfill Construction for U.S. Steel Serbia
Rakić Dragoslav, Vojnović Bogdan, Berisavljević Dušan, Basarić Irena. "Geotechnical Conditions of Industrial Waste Landfill Construction for U.S. Steel Serbia" in Proceedings of the XV Balkan Mineral Processing Congress, Sozopol, Bulgaria: (2013): 1056-1060
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A review of Veliki Majdan tailings dam rehabilitation,
Kostović Milena, Vitorović Zdravko (2011)Kostović Milena, Vitorović Zdravko. "A review of Veliki Majdan tailings dam rehabilitation," in Proceedings of the XIV Balkan Mineral Processing Congress II, Tuzla, Bosnia and Herzegovina:Faculty of Mining, geology and civil engineering in Tuzla and Faculty of Mining in Prijedor, University of Tuzla (2011): 799-801
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Mineralogy and thermal properties of clay from Slatina (Ub, Serbia)
Milošević M., Logar M., Kaluđerović L., Jelić I.. "Mineralogy and thermal properties of clay from Slatina (Ub, Serbia)" in Geophysical Research Abstracts Geophysical Research Abstracts 19, Vienna, Austria:Copernicus Publications (2017): 2044
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Effectiveness Analysis of Different Bucket-wheel Excavators
Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić. "Effectiveness Analysis of Different Bucket-wheel Excavators" in 8th International Conference Mining and Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Smectite clays of Serbia and their application in adsorption of organic dye
Milošević Maja, Logar Mihovil (2014)Milošević Maja, Logar Mihovil. "Smectite clays of Serbia and their application in adsorption of organic dye" in Geophysical Research Abstracts 16, Vienna, Austria Vienna, Austria :Copernicus Publications Copernicus Publications (2014)
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Application of Thermal Imaging in Surface Mining
Milanka Negovanović (2022)Termalno snimanje se sve više koristi u rudarskoj industriji kao jedan od dijagnostičkih alata za praćenje određenih proizvodnih procesa, kao i stanja opreme i mašina. Predstavlja nedestruktivnu i beskontaktnu metodu ispitivanja koja omogućava rano otkrivanje problema, planiranje održavanja sa minimalnim kvarovima, sprečavanje neplaniranih poremećaja, posmatranje materijala u nepristupačnim ili opasnim područjima i poboljšanje bezbednosti i produktivnosti. Termalno snimanje koristi specijalizovane termalne kamere sa unutrašnjim detektorima koji identifikuju veoma male temperaturne varijacije i proizvode sliku tog nevidljivog infracrvenog ili toplotnog ...Termalno snimanje, nedestruktivne metode testiranja, površinska eksploatacija, termalne kamere, rudarske operacijeMilanka Negovanović. "Application of Thermal Imaging in Surface Mining" in 15th International Conference OMC 2022, Zlatibor, 12-15th October 2022, Jugoslovenski komitet za površinsku eksploataciju (2022)
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Highway construction in fossil landslides zones – Lessons learned from the Grdelica Gorge, Serbia
Landslides are common on roads, which directly affect the flow of traffic and the connection and functioning of the population in surrounding area. Therefore, it is necessary to investigate them in the shortest possible time and to determine and carry out the remediation solution. Functionality of the state roads is immensely important so it is necessary to ensure that the traffic is maintained during remediation activities. Therefore, design solutions and remediation execution technology should be adapted to these requirements. ...Biljana Abolmasov, Marinos Skempas, Svetozar Milenković, Janko Radovanović, Miloš Marjanović. "Highway construction in fossil landslides zones – Lessons learned from the Grdelica Gorge, Serbia" in 5th Regional symposium on landslides in Adriatic–Balkan Region, 23-26 March 2022, Faculty of Civil Engineering, University of Rijeka and Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb (2022)
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An Experimental Investigation of the Environmental Risk of a Metallurgical Waste Deposit
Jasmina Dedić , Jelena Djokic , Jovana Galjak, Gordana Milentijević, Dragan Lazarevic, Živče Šarkočević, Milena Lekić (2022)The aim of this study is to investigate the environmental risk of long-term metallurgical waste disposal. The investigated site was used for the open storage of lead and zinc waste materials originating from a lead smelter and refinery. Even after remediation was performed, the soil in the close vicinity of the metallurgical waste deposit was heavily loaded with heavy metals and arsenic. The pollutants were bound in various compounds in the form of sulfides, oxides, and chlorides, as well ...Jasmina Dedić , Jelena Djokic , Jovana Galjak, Gordana Milentijević, Dragan Lazarevic, Živče Šarkočević, Milena Lekić. "An Experimental Investigation of the Environmental Risk of a Metallurgical Waste Deposit" in Minerals, MDPI, Basel, Switzerland. (2022). https://doi.org/10.3390/min12060661
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GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities
Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević . "GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities" in Contributions to International Conferences on Engineering Surveying. Springer Proceedings in Earth and Environmental Sciences, Dubrovnik, Croatia, October 22-23, 2020, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-51953-7_21
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Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite
Kaluđerović Lazar, Tomić Zorica, Đurović Rada, Milošević Maja. "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite" in Geophysical Research Abstracts 18, Vienna, Austria :Copernicus Publications (2016)
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Color measurement of methylene blue dye/clay mixtures and its application using economical methods
Milošević Maja, Kaluđerović Lazar, Logar Mihovil. "Color measurement of methylene blue dye/clay mixtures and its application using economical methods" in Geophysical Research Abstracts 18, Vienna, Austria Vienna, Austria :Copernicus Publications Copernicus Publications (2016)
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Impact of modern technological equipment at improvement of technological and economical indicators in lead and zinc flotation plant “Kopaonik” – Leposavic, RMHK “Trepca” – Serbia
Lazić Predrag, Mališić Z., Vidosavljević S., Ivanović M., Antonijević D.. "Impact of modern technological equipment at improvement of technological and economical indicators in lead and zinc flotation plant “Kopaonik” – Leposavic, RMHK “Trepca” – Serbia" in Proceedings of the XV Balkan Mineral Processing Congress, Sozopol: (2013): 648-651
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Suitability of the methylene blue test for determination of cation exchange capacity of clay minerals related to ammonium acetate method
Milošević Maja, Logar Mihovil, Dojčinović Biljana, Erić Suzana. "Suitability of the methylene blue test for determination of cation exchange capacity of clay minerals related to ammonium acetate method" in Geophysical Research Abstracts Geophysical Research Abstracts 17, Vienna, Austria :Copernicus Publications 2015 (2015)
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Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry
Milošević M., Logar M., Kaluđerović L., Jelić I.. "Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry" in Energy Procedia Energy Procedia 125, :Elsevier (2017): 650-655. https://doi.org/10.1016/j.egypro.2017.08.270
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Orientation and optical polarized spectra (380 – 900 nm) of methylene blue crystals on a glass surface
Milošević Maja, Logar Mihovil, Poharc-Logar Vesna, Jakšić Ljiljana. "Orientation and optical polarized spectra (380 – 900 nm) of methylene blue crystals on a glass surface" in International journal of spectroscopy 2013, :Hindawi (2013): 6 pp. https://doi.org/http://dx.doi.org/10.1155/2013
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P-T analiza RMU Bitola – krupne klase
Nemanja Dobrosavljević (2024)Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans... (svetliji minerali (vitrit i klarit) se bolje flotiraju dok suprotno važi za tamnije minerale (durit ı fuzit), > površinska oksidacija uglja (elementi uglja koji brže oksidiraju se teže flotiraju). Oksidacija je manje izražena kod ugljeva sa većim stepenom karbonizacije a i svetliji minerali (vitrit ...
... da ima određena svojstva. Kao suspenzoid upotrebljavaju se minerali jalovine prisutni u uglju i to klase krupnoće -0,5+0 mm. (minerali jalovine moraju biti prisutni maseno oko 4%). Ukoliko se ostvari zapreminska koncentracija minerala jalovine (oko 20%), kreira se suspenzija potrebne gustine (1 ...
... sadrži dva dela (opšti ı specijalni). Opšti deo završnog rada je korišćen za prikaz opisa minerala uglja koji je poslužio u svrhu ispitivanja i to direktno uz prikaz date klasifikacije pomenutih minerala ugljeva i uz detaljan opis procesa i tehnologije proizvodnje uglja. Takođe, u opštem delu ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024
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New U–Pb dating and Hf-isotope composition of the Gornjane Granitoids (South Carpathians, East Serbia)
Vasković Nada, Belousova Elena, O’Reilly Susann Y, Griffin William L., Srećković Batoćanin Danica, Christofides Georgios, Koroneos Antonis (2012)Vasković Nada, Belousova Elena, O’Reilly Susann Y, Griffin William L., Srećković Batoćanin Danica, Christofides Georgios, Koroneos Antonis. "New U–Pb dating and Hf-isotope composition of the Gornjane Granitoids (South Carpathians, East Serbia)" in 5th Mineral Sciences in the Carpathians Conference and 3rd Central-European Mineralogical Conference no. 7, Miskolc, Hungary:Acta Mineralogica-Petrographica, Abstract Series (2012): 146-146
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Investigation of synergetic effect of co-pyrolysis of lignite and high density polyethylene (HDPE)
Gajica Gordana, Đoković Nataša, Mitrović Danica, Kojić Ivan, Životić Dragana, Stojanović Ksenija (2014)Gajica Gordana, Đoković Nataša, Mitrović Danica, Kojić Ivan, Životić Dragana, Stojanović Ksenija. "Investigation of synergetic effect of co-pyrolysis of lignite and high density polyethylene (HDPE)" in Proceedings of the XVI Geological Meeting of the Republic of Komi. Part III. Geology and mineral resources of European North-West of the Russia, Siktivkar, Russia, April 15-17, 2014, Siktivkar, Russia:Geologica institut Komi NC UrO RAN (2014): 138-140
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The mine ore from Prlovi-2 locality preliminary flotation tests
Lazić Predrag, Tomanec Rudolf, Kostović Milena, Miković Branislav. "The mine ore from Prlovi-2 locality preliminary flotation tests" in Proceedings of the XIV Balkan Mineral Processing Congress I, Tuzla, Bosnia and Herzegovina:Faculty of Mining, geology and civil engineering in Tuzla and Faculty of Mining in Prijedor, University of Tuzla (2011): 269-273