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1766 items
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Analysis of the exhaust emissions inventory from auxiliary mining machines
Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović. "Analysis of the exhaust emissions inventory from auxiliary mining machines" in 9th International Conference Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology (2023)
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The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers
One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...... costs by years for CAT D8R and Dressta TD25M dozers in PE EPS are shown in Figure 4. Costs increasing trend is evident in this interpretation. In case of applying profit life criterion CAT D8R dozer should be replaced after 7 years of operation, ог in this case after 22,000 working hours оп average. ...
... categories — time in operation, time of planned and non-planned stoppages. It the availability is lower than this value than should be more of the machines in the fleet of the open cast mine, thus increasing the costs. On the other hand, insufficient number of machines (dozers) will result in reduced execution ...
... auxiliary machinery in open-cast lignite mines: a case study of bulldozers Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The optimization of auxiliary machinery in open-cast lignite ...Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović. "The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers" in 7th International Symposium Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2019)
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Evidence for Badenian marine transgression in Belgrade (Serbia)
Filip Anđelković, Dejan Radivojević (2019)... of Mining and Geology, p. 428 (in Serbian) Anđelković, M., Anđelković, J. 1997.Badenian cycles in Serbia. Geološki anali Balkanskog poluostrva, 61-2, 1-13 Anđelković, F., Radivojević, D. 2018. A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area, 17th Serbian ...
... 04:22:14 Evidence for Badenian marine transgression in Belgrade (Serbia) Filip Anđelković, Dejan Radivojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Evidence for Badenian marine transgression in Belgrade (Serbia) | Filip Anđelković, Dejan Radivojević ...
... Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Evidence for Badenian marine transgression in Belgrade (Serbia) Filip Anđelković1 and Dejan Radivojević1 1University ...Filip Anđelković, Dejan Radivojević. "Evidence for Badenian marine transgression in Belgrade (Serbia)" in AAPG Vienna, Paratethys petroleum systems between Central Europe and the Caspian Region, Vienna, 26-27 mart, 2019, AAPG (2019)
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Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)
... earlier drilled wells (KGK-13 and KGK-14) in the Rakovica stream valley (KNEŽEVIĆ, 1989). °e resulting stratigraphic data are interpreted in the context of Neoalpine geodynamics and revealed a complex tectonic structure with pronounced block structures. In the studied area, during the Neoalpine tectonics ...
... Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia) Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt ...
... DAM, J.A. (2012): °e Neogene Period. In: GRADSTEIN, F.M., OGG, G.J., MARK, D. SCHMITZ, M.D. & OGG, G.M. (eds.): A Geological Time Scale 2012, Cambridge University Press, 923–979. MOLOSTOVSKY, E.A. & CHRAMOV, A.N. (1997): Magnetostratigraphy and its importance in geology. University of Saratov, 173 ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević. "Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)" in 7th International Workshop: Neogene of Central and South-Eastern Europe, Velika, Croatia, maj 2017, Croatian Geological Society (2017)
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3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeSaša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac. "3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s12665-013-2591-9
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Filling of dolines with aeolian sediments in the high-mountain karst of the Dinarides (Mt. Durmitor, Montenegro)
Filling of dolines with aeolian sediments, one of the less frequently described ways in which they are filled, is analysed in the present study on an example of a doline in the high-mountain karst of the Dinarides. There is a series of deep dolines on a broad ridge (about 2450 m a.s.l.) on Mt. Durmitor (Montenegro) in the southeastern part of the Dinarides. The accumulation of very fine-grained sand that almost completely fills one of the dolines was analysed. ...Mirela Djurović, Violeta Gajić, Predrag Djurović. "Filling of dolines with aeolian sediments in the high-mountain karst of the Dinarides (Mt. Durmitor, Montenegro)" in Journal of mountain science, Science Press (2022). https://doi.org/10.1007/s11629-021-7274-5
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The impact of temporal variability of groundwater levels on groundwater vulnerability maps in karst terrains – a case example of the Perućac spring catchment area
Groundwater vulnerability maps represent an essential tool for protecting karst groundwater resources. Vulnerability assessment is usually based on spatial evaluation of various parameters that affect the vulnerability degree and regulate the protection role of the unsaturated zone. Most of these parameters, like soil and geology conditions, are constant and do not change during the year or over several years. In contrast, some parameters, such as the groundwater level, depend on the variability of recharge conditions. By considering the variability ...Vladimir Živanović, Igor Jemcov, Nebojša Atanacković. "The impact of temporal variability of groundwater levels on groundwater vulnerability maps in karst terrains – a case example of the Perućac spring catchment area" in 5th IAH CEG conference, Slovenian Committee of International Association of Hydrogeologists - SKIAH (2022)
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Complex geophysical survey on solving the problem of water loss in the karst terrain reservoir
Branislav Sretković, Dejan Vučković (2023)Geophysical surveys in karst terrain are always a specific challenge. Each of them requires a careful consideration of the problem, specific conditions on the ground, the selection of adequate methods applicable in that specific and unique karst area. But they should have one thing in common: a complex approach and looking at the problem from wider to narrower, with a gradual narrowing of the investigation area, increasing the spatial precision and resolution of the obtained data. On the example of ...Branislav Sretković, Dejan Vučković. "Complex geophysical survey on solving the problem of water loss in the karst terrain reservoir" in 8th Symposium Geoscience 2023, Bucharest, 9-11. November 2023, Bucharest : Editura Cetatea de Scaun (2023)
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Preparation, synthesis and characterization of nanometric Ca0.9Er0.1MnO3
Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)... available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs R Y O U N G S C I E N T I S T S IN C E R A M I C S UEĆ čS Ć ONFE RE NJCJE LONG SCIENTISTS, IN CERAMICS 15% ECerS CONFERENCE for YOUNG SCIENTISTS in CERAMICS ...
... Abstracts of The ECerS 15 Conference for Young Scientists in Ceramics (CYSC-2023) publishes abstracts from the field of ceramics, which are presented at traditional international Conference for Young Scientists in Ceramics. FEditors-in-Chief Prof. Dr. Vladimir V. Srdić Dr. SoBa Hžibalova Publisher ...
... cpricke, HoBu Cajn 666.3/.7(048.3) CONFERENCE for Young Scientists in Ceramics (15 ; 2023 ; Novi Sad) Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad ; [editor-in-chief Vladimir V. Srdić, SoBa Htibalov4]|. - Novi Sad : Faculty ...Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić. "Preparation, synthesis and characterization of nanometric Ca0.9Er0.1MnO3" in Programme and Book of abstracts 15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia October 11-14, 2023 , Novi Sad : Faculty of Technology, University of Novi Sad (2023)
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Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer
Saša Milanović (2019)Saša Milanović. "Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer" in Carbonates and Evaporites, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s13146-019-00487-2
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How active is recent tectonics in the central Balkans: Evidence from the Serbian Carpatho-Balkanides
Ana Mladenović (2022)Since the Late Cretaceous, after closure of the Neotethys ocean, tectonic processes in the central Balkan Peninsula were mainly controlled by the mutual interaction of the Adriatic and the Eurasian plates, and tectonic units in-between. Most of the tectonic structures that have been active during Cenozoic times were inherited from previous tectonic stages under different tectonic regimes. Tectonic activity within the Carpatho-Balkan orogen in eastern Serbia since Miocene is conditioned by the existence of the rigid Moesian promontory east ...Ana Mladenović. "How active is recent tectonics in the central Balkans: Evidence from the Serbian Carpatho-Balkanides" in 15th Emile Argand Conference on Alpine Geological Studies, 12-14 September 2022, Ljubljana, Slovenia, University of Ljubljana, Faculty of Natural Sciences and Engineering (2022)
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Development Of The Serbian Geological Resources Portal
... to the server in .flv (Flash video) format. After importing these libraries, the engine of this plug-in adds the thumbnail of the first frame of the video clip with the link to the .swf player, which plays the clip in a modal panel, adding navigation controls, as well. Database search In addition to ...
... pub- lished both in Serbian and English, encompasses a number of maps and accompanying legends (DIMI- TRIJEVIĆ, 1996). The web edition of the Atlas, avail- able at http://geoliss.rgf.rs/index.php?page=atlas, was created with the use of Adobe flash plug-in Zoomify, which enables zooming in real-time, without ...
... “gold” is entered, the method on the server sums up the number of appear- ances of the word “gold” in the abovementioned fields in relation to the given factor. Ranking of the results is carried out in descending order according to the field containing the total sum of factors. The search method described ...Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić. "Development Of The Serbian Geological Resources Portal" in Proceedings of the 17th Meeting of the Association of European Geological Societies, Belgrade, Serbia : The Serbian Geological Society (2011)
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Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... (Hallstatt facies) are found only in sedimentary mć- langes and are incorporated in the deep-water troughs in front of an advancing nappe stack. The thrust sheets ofthe former passive margin were suc- cessively fragmented and incorporated into the nappe stack in front of the westward obducting ...
... slope, the toe-of-slope and in the basin near to the slope by DIMI- TRIJEVIĆ & DIMITRIJEVIĆ (1991) and KovAcs et al.(2010, 2011), based on the distinguished lithofacies. The term “Grivska Formation” in the Inner Di- narides has been used until nowadays in a confusing and misleading ...
... between Gučevo and Ljubišnja mts., Yugoslavia - in Serbo-Croatian, English summary|. Ge- ološki anali Balkanskoga poluostrva, 50: 151–394. SUDAR, M. 1996. Trijaski konodonti Zlatibora [Triassic con- odonts of Zlatibor - in Serbian, English abstract]|. In: DIMITRIJEVIĆ M.D. (Ed.). Geologija Zlatibora ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... (En71.42Wo26.32Fs2.24 in average) are low abundant and commonly occurs as exsolution lamellas in orthopyroxene. Scarce serpentine derived after olivine. The most abundant constituent, talc, appears either in fibrous and radiating clusters or forms bands. Talc crystallizes in a wide temperature range ...
... ultrabasic rocks. The borehole terminated in these rocks at 560 m. Ultrabasic rocks are intensively metamorphosed- talcized displaying the downward increase in metamorphic degree. Thus, the partly preserved rocks may be found only in shallower levels. In aim to determine their composition and origin ...
... Diffractometer in θ-θ (the sample in horizontal position) parafocusing Bragg-Brentano geometry using D/teX Ultra 250 strip detector in 1D standard mode with CuKα1,2 radiation source (U = 40 kV and I = 30 mA). The low background silicon sample holder was used. The XRPD pattern was collected in 5-75 ° 2θ ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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Integrated energy planning approach for accelerating energy transition of households
The success of energy transition planning depends on several influential and variable factors that need to be considered and tracked in modeling to support policymakers. Expert-based energy models are mainly developed following the assumptions of experts and, in most cases, a limited number of stakeholders. This top-down modeling approach will provide satisfactory results in centrally managed energy sectors (electricity generation and distribution, district heating, etc.), where further decisions could be projected relatively precisely. However, the same approach will not ...Energetsko planiranje, Integrisano energetsko modeliranje, Energetska tranzicija, Domaćinstva, Individualno grejanje, LEAPBoban Pavlović, Marija Živković, Dejan Ivezić. "Integrated energy planning approach for accelerating energy transition of households" in Energy Reports, Elsevier BV (2023). https://doi.org/10.1016/j.egyr.2023.11.016
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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The impact of limestone fragmentation on raw mix production in cement industry
Raw mix design is one of crucial point in production of clinker. Cement industry use limestone, marl, clay in particular percent to provide the best quality in production of clinker. The quality of the material must be in line with the quality targets. Fragmentation is important element, because affect preblending design, economic norm from blasting to crusher. Blasting is an operation which affects all subsequent operations and costs. The Kuz-Ram model is possibly the most widely used approach to ...Nikola Đokić, Lazar Kričak, Stefan Milanović, Marinko Pavlović, Stefan Krstić. "The impact of limestone fragmentation on raw mix production in cement industry" in Proceedings / XIV International Mineral Processing and Recycling Conference, IMPRC; May 12-14, 2021, Belgrade : University of Belgrade, Technical Faculty in Bor (2021)
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Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry
Multiple criteria decision making (MCDM) is a supporting tool which is widely spread in different areas of science and industry. Many researchers have confirmed that MCDM methods can be useful for selecting the best solution in many different problems. In this paper, two novel methods are presented and applied on existing decision-making processes in the mining industry. The first method is multiple criteria ranking by alternative trace (MCRAT) and the second is ranking alternatives by perimeter similarity (RAPS). These ...Katarina Urošević, Zoran Gligorić, Igor MIljanović, Čedomir Beljić, Miloš Gligorić. "Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry" in Mathematics, MDPI (Basel, Switzerland) (2021). https://doi.org/10.3390/math9161980