Претрага
293 items
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Reliability of Rubber Conveyor Belts as a Part of the Overburden Removal System - Case Study: Tamnava-east Field Open Cast Mine
Bugarić Uglješa, Tanasijević Miloš, Polovina Dragan, Ignjatović Dragan, Jovančić Predrag. "Reliability of Rubber Conveyor Belts as a Part of the Overburden Removal System - Case Study: Tamnava-east Field Open Cast Mine" in Journal of TEHNIČKI VJESNIK = TECHNICAL GAZETTE 21 no. 5 (2014): 925-932
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Measurement of crack displacement on residential structure due to blast-induced vibrations and daily changes of temperature and relative humidity
Negovanović Milanka, Kričak Lazar, Janković Ivan, Zeković Dario, Ignjatović Snežana. "Measurement of crack displacement on residential structure due to blast-induced vibrations and daily changes of temperature and relative humidity" in Technics Technologies Education Management / TTEM 7 no. 1, Sarajevo,BIH:DRUNPP, Sarajevo (2012): 411-417
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Forecasting the Behaviour of the Rock Mass Before Taking Up the Excavation on a Deeper Layers of the Ore Body Borska Reka
Zlatanović Dragan, Milisavljević Vladimir, Milenko Ljubojev, Dragan Ignjatović, Zoran Stojanović (2015)Zlatanović Dragan, Milisavljević Vladimir, Milenko Ljubojev, Dragan Ignjatović, Zoran Stojanović. "Forecasting the Behaviour of the Rock Mass Before Taking Up the Excavation on a Deeper Layers of the Ore Body Borska Reka" in Mining and Metalurgy Engineering Bor no. 2, Bor:Mining and Metallurgy Institute, Bor (2015): 29-52. https://doi.org/10.5937/MMEB1502029Z
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Diagnostic procedure of bucket wheel and boom computer modeling – a case study revitalization bucket wheel and drive of BWE SRs2000
Predrag Jovančić, Dragan Ignjatović, Tasko Maneski, Dragan Novaković, Časlav Slavković. "Diagnostic procedure of bucket wheel and boom computer modeling – a case study revitalization bucket wheel and drive of BWE SRs2000" in 14th International Scientific Conference Computer aided Eengineering, jun 20-23, 2018, Wroclaw, Poland, Springer Publishing (2019). https://doi.org/10.1007/978-3-030-04975-1_36
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Risk assessment of flooded equipment revitalization on opencast coal mine Tamnava-West Field
Natalija Pavlović, Dragan Ignjatović, Stevan Đenadić, Tomislav Šubaranović, Ivica Jakovljević (2021)Natalija Pavlović, Dragan Ignjatović, Stevan Đenadić, Tomislav Šubaranović, Ivica Jakovljević. "Risk assessment of flooded equipment revitalization on opencast coal mine Tamnava-West Field" in Thermal Science, National Library of Serbia (2021). https://doi.org/10.2298/TSCI210615240P
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Possibility of Using Wind and Solar Sources for Electric Power Generation on Serbian Opencast Coal Mines
Natalija Pavlović, Dragan Ignjatović, Tomislav Šubaranović. "Possibility of Using Wind and Solar Sources for Electric Power Generation on Serbian Opencast Coal Mines" in Materials Proceedings - International Conference on Raw Materials and Circular Economy, MDPI (2021). https://doi.org/10.3390/materproc2021005050
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Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co
Polovina Dragan, Ivković Slobodan, Ignjatović Dragan, Tanasijević Miloš. "Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co" in Integritet i vek konstrukcija - Structural Integrity and Life 10 no. 1, Beograd:Društvo za integritet i vek konstrukcija i Institut IMS - Society for Structural Integrity and Life & IMS Institute (2010): 31-41. https://doi.org/620.169.1:621.879.48
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Projektovanje održavanja opreme površinskih kopova uglja
Slobodan Ivković, Dragan Ignjatović, Predrag Jovančić, Miloš Tanasijević. Projektovanje održavanja opreme površinskih kopova uglja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2008
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Analysis and visualization of geophysical well-logging data from closely spaced boreholes
Geophysical logging measurements for determining the condition of the rock mass on the dam profile and locating the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carried out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis ...... Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Analysis and visualization of geophysical well-logging data from closely spaced boreholes | Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov ...
... Jopoan Cmedjko6,Eun Iempyuuee ANALYSIS AND VISUALIZATION OF GEOPHYSICAL WELLLOGGING DATA FROM CLOSELY SPACED BOREHOLES Branislav Sretković, Ivana Pasiljević, Dimitry Sidorov - Biryukov Munepa;nu pecypcu u EKoH0McKa reo.toruja A REVIEW OF STRATIGRAPHY CHARACTERISTICS OF THE MAIN ROCK UNITS ...
... Cmoanuk, Heuua 4n0o6 FAULT TYPE ASSESSMENT BASED ON VERTICAL GRAVITY GRADIENT ANOMALIES – ADVANTAGES AND LIMITATIONS Jvana Pasiljević, Snežana Ignjatović, Branislav Sretković TFEOTEPMAJIEH IIOTEHIIMJAJI BO PEIIVBJIMKA CEBEPHA MAKEJIOHMHJA Hayaq baapa, Catba Iocmonosa Jakuvo8cka, Jluouja /{unoscka ...Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov. "Analysis and visualization of geophysical well-logging data from closely spaced boreholes" 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)
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Defining location and dip of magnetic anomaly sources applying mathematical transformation
It is significant to define the location and dip of anomaly sources during the geophysical exploration (magnetic, gravity, electric, seismic, etc.). In this paper we presented results obtained during magnetic survey. Applying different method of mathematical transformations on magnetic data we can find the position (edge) and dip of magnetic anomaly sources. For successful solution of this problem, we used combination two method tilt derivative and upward continuation. The study area located in the eastern Serbia, north part of ...Snežana Ignjatović, Milanka Negovanović. "Defining location and dip of magnetic anomaly sources applying mathematical transformation" in 53nd International October Conference on Mining and Metallurgy, IOC 2022, Bor, 3-5. oktobar 2022., Mining and Metallurgy Institute Bor (2022)
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Uticaj ekstremnih procesa na rizike površinske eksploatacije
Nepredvidivi ekološki negativni slučajni procesi mogu uticati na geo-tehnički sistem pri površinskoj eksploataciji ležišta mineralnih sirovina, što u velikoj meri uvećava rizike i ugrožava realizaciju proizvodnje. Kvantitativna analiza sa proračunom verovatnoća pojava ovakvih ekstremnih događaja i procenom odgovarajućih ekonomskih posledica, posebno u uslovima globalnih klimatskih promena, omogućava definisanje rizika i optimizaciju parametara sistema površinske eksploatacije.Natalija Pavlović, Tomislav Šubaranović, Dragan Ignjatović. "Uticaj ekstremnih procesa na rizike površinske eksploatacije" in 15. međunarodna konferencija o površinskoj eksploataciji OMC 2022, Zlatibor, 12.-15.10.2022., Jugoslovenski komitet za površinsku eksploataciju (2022)
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Mašine i uređaji za površinsku eksploataciju i transport - zbirka zadataka
Dragan Ignjatović, Predrag Jovančić (2012)Dragan Ignjatović, Predrag Jovančić. Mašine i uređaji za površinsku eksploataciju i transport - zbirka zadataka, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2012
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Машине и помоћни радови на површинским коповима
Драган Игњатовић, Томислав Шубарановић, Стеван Ђенадић. Машине и помоћни радови на површинским коповима, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2021
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Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines
This paper presents the model for the identification of reference points on the lifetime curve of engineering systems. This curve commonly represents the increase and decline of failure in relation to time. A direct correlation between failure rate and costs is assumed in this paper, therefore, statistical and empirical analysis of costs provided reference points. This approach is used for positioning stages of the engineering system’s lifetime with a minimal number of failures and costs, regardless of whether these ...Electrical and Electronic Engineering,Industrial and Manufacturing Engineering, Control and Optimization, Mechanical Engineering, Computer Science (miscellaneous), Control and Systems EngineeringUgljesa Bugarić, Milos Tanasijević, Stevan Djenadić, Dragan Ignjatović, Ivan Janković. "Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines" in Machines, MDPI AG (2022). https://doi.org/10.3390/machines10110995
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Održivi razvoj rudarskog sektora
Imajući u vidu sve veću zabrinutost za stanje životne sredine i socioekonomsku nejednakost, sektorska održivost bez obzira na privrednu delatnost, privlači sve veću pažnju kako globalno tako i lokalno. U tom smislu postoji konsenzus kod svih zainteresovanih strana da čovečanstvo treba da usvoji mere za promenu trenutno neodrživih obrazaca proizvodnje i potrošnje. Rudarska industrija igra fundamentalnu ulogu u ovom kontekstu, privlačeći pažnju kroz različite inicijative tokom poslednjih decenija. Neke od njih su čak i primenjene u praksi ali konsenzus ...Vladimir Pavlović, Dragan Ignjatović, Tomislav Šubaranović. "Održivi razvoj rudarskog sektora" in 15. Međunarodna konferencija o površinskoj eksploataciji OMC 2022, Zlatibor, 12.-15.10.2022., Jugoslovenski komitet za površinsku eksploataciju (2022)
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Flyrock Induced by Blasting in Surface Mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Минирање представља и даље најефикаснији и најјефтинији начин експлоатације великих количина чврстих минералних сировина на површинским коповима. Енергија експлозије се користи за фрагментацију чврсте стенске масе до захтеване гранулације. Поред позитивних ефеката минирања, постоје и одређени нежељени ефекти сваког процеса минирања који се могу јавити, а то су: потреси тла, разлетање комада стене, ваздушни удари, отровни и загушљиви гасови и прашина. Разлетање комада стене је неконтролисано избацивање фрагмената одминиране стенске масе и представља један од главних извора материјалне ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock Induced by Blasting in Surface Mining" in 8th Balkan Mining Congress, Belgrade, September 28-30, 2022, Mining Institute Ltd, Belgrade (2022)
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Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia)
Nenad Marić, Jana Štrbački, Sanja Mrazovac Kurilić, Vladimir P. Beškoski, Zoran Nikić, Snežana Ignjatović, Jovana Malbašić (2020)Aquifer contamination by petroleum hydrocarbons leads to measurable changes of groundwater hydrochemistry, primarily due to the microbiological activity. This study analyzes this phenomenon at an historical kerosene-contaminated site in Vitanovac (central Serbia). Due to the long-term hydrocarbon contamination and exposure to aerobic and anaerobic biodegradation mechanisms, the lowest concentrations of O2, NO3−, and SO42− (electron acceptors) and the highest concentrations of Mn and Fe (products of microbial metabolic activity) overlap. The terminal redox-accepting processes in groundwater ranged from oxygen ...Nenad Marić, Jana Štrbački, Sanja Mrazovac Kurilić, Vladimir P. Beškoski, Zoran Nikić, Snežana Ignjatović, Jovana Malbašić. "Hydrochemistry of groundwater contaminated by petroleum hydrocarbons: the impact of biodegradation (Vitanovac, Serbia)" in Environmental Geochemistry and Health, Springer Netherlands (2020). https://doi.org/https://doi.org/10.1007/s10653-019-00462-9
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Primary crusher site selection in open pit mines - case study in Sungun copper mine
Facility site selection, (such as Primary or in pit Crusher location) is one of the most important steps in mine de-sign process that has a significant impact on economy of the mining operation. This study covers an attempt to find the optimal location forprimary crusher in order to support the expansion of Sungun copper mine, which is the second largest open pit mine in Iran. Recent exploration drilling has led to a considerable increase in the ore reserve. Therefore, ...Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Mehdi Rahmanpou. "Primary crusher site selection in open pit mines - case study in Sungun copper mine" in Underground mining engineering, Универзитет у Београду, Рударско-геолошки факултет (2021)
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Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje
Energetski razvoj zemalja Evrope decenijama je bio baziran na uglju. Instalisana snaga svih energetskih kapaciteta koji su zasnovani na uglju je preko 2000 GW. Ugalj je i dalje od bitnog značaja za dobijanje električne energije u Evropi. I pored toga što postoji veliki potencijal uglja, trend je smanjenja proizvodnje električne energije iz uglja do 2050. godine. Imajući u vidu Zelenu agendu i politiku EU, zemlje Evrope se okreću obnovljivim izvorima energije. Srbija u okviru obnovljvih izvora ima potencijala prevashodno ...Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić. "Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje" in Energija, ekonomija, ekologija, Savez energetičara (2022). https://doi.org/10.46793/EEE22-3.63J
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Koncept prediktivnog održavanja 4.0 (PdM) u energetici – konekcija sa budućom primenom Industrije 5.0
Četvrtu industrijsku revoluciju - Industrija 4.0 karakteriše upotreba cyber-fizičkih sistema. Da bi se postigla optimalna strategija održavanja (ali i proizvodnje), neophodno je razviti sisteme koji podržavaju napredne inteligentne sisteme održavanja ili tehnologije pametnog održavanja. Iz toga su proizašli postulati Prediktivnog održavanja 4.0 koji definišu veoma blisku budućnost u oblasti održavanja tehničkih sistema. Prediktivno održavanje 4.0 uključuje iskorišćenje snage veštačke inteligencije za stvaranje stalnog uvida u otkrivanje uzroka i anomalija u radu opreme, koje se ne otkrivaju kognitivnim moćima. Drugim ...Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Miloš Tanasijević, Filip Miletić. "Koncept prediktivnog održavanja 4.0 (PdM) u energetici – konekcija sa budućom primenom Industrije 5.0" in Energija, ekonomija, ekologija, Savez energetičara (2022). https://doi.org/ 10.46793/EEE22-2.54J