Претрага
590 items
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Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu
Četvrtu industrijsku revoluciju – Industriju 4.0 karakteriše upotreba cyber-fizičkih sistema. Da bi se postigla optimalna strategija održavanja (ali i eksploatacije), neophodno je razviti sisteme koji podržavaju napredne inteligentne sisteme održavanja ili tehnologije pametnog održavanja. Iz toga su proizašli postulati Prediktivnog održavanja 4.0 (PdM 4.0) koji definišu veoma blisku budućnost u oblasti održavanja tehničkih sistema pa i rudarske opreme. PdM 4.0 uključuje iskorišćenje snage veštačke inteligencije za stvaranje stalnog uvida u otkrivanje uzroka i anomalija u radu opreme, koje se ...... Dragan Ignjatović, Miloš Tanasijević, Stevan Đenadić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu | Predrag Jovančić, Vesna Damnjanović, Dragan Ignjatović, Miloš Tanasijević, Stevan ...
... , Univerzitet u Beogradu, Rudarsko-geološki fakultet 3 Prof. Dr Dragan Ignjatović, Univerzitet u Beogradu, Rudarsko-geološki fakultet 4 Prof. Dr Miloš Tanasijević, Univerzitet u Beogradu, Rudarsko-geološki fakultet 5 Stevan Đenadić, Univerzitet u Beogradu, Rudarsko-geološki fakultet 94 ...Predrag Jovančić, Vesna Damnjanović, Dragan Ignjatović, Miloš Tanasijević, Stevan Đenadić. "Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu" in IX Međunarodna konferencija UGALJ 2019, Zlatibor, Srbija, 23-26. oktobar 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
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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 ...... Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Effectiveness Analysis of Different Bucket-wheel Excavators | Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić | ...
... 2021, Serbia EFFECTIVENESS ANALYSIS OF DIFFERENT BUCKET-WHEEL EXCAVATORS Stevan Djenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić University of Belgrade – Faculty of Mining and Geology, SERBIA, stevan.djenadic@rgf.bg.ac.rs Abstract: Coal production ...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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Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine
Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...... 2024-12-25 10:39:16 Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду ...
... Београду [ДР РГФ] Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine | Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić | SSRN Electronic Journal | 2021 | | 10.2139/ssrn.3945617 http://dr.rgf.bg ...Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić. "Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945617
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Managing mining project documentation using human language technology
Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation... Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Managing mining project documentation using human language technology | Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo ...
... using human language technology Aleksandra Tomaševi�c and Ranka Stankovi�c Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia Miloš Utvi�c Faculty of Philology, University of Belgrade, Belgrade, Serbia, and Ivan Obradovi�c and Božo Kolonja Faculty of Mining and Geology, University ...
... international and national journals and proceedings from scientific conferences. She has developed several software tools in mining, GIS and HLT. Miloš Utvi�c is an Assistant Professor at the Department of Library and Information Science, Faculty of Philology, University of Belgrade. His scientific ...Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja . "Managing mining project documentation using human language technology" in The Electronic Library (2018). https://doi.org/10.1108/EL-11-2017-0239
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Quantitative landslide risk assessment in the city of Tuzla
In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović. "Quantitative landslide risk assessment in the city of Tuzla" in SCG-Xiii International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics and Geotechnical Engineering (2021)
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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 ...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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Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example
... Example Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example | Miloš Marjanović ...
... University of Honduras Tegucigalpa, Honduras Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, and Irena Georgievska Abstract This paper is representing a successful application and ...Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska. "Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2020). https://doi.org/10.1007/978-3-030-60227-7_29
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Pre-failure deformation monitoring as rockfall prediction tool
Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
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CliRtheRoads: An Integrated Approach to Landslide Risk Management on Roads in Serbia
Biljana Abolmasov, Ranka Stanković, Miloš Marjanović, Nikola Vulović, Uroš Đurić . "CliRtheRoads: An Integrated Approach to Landslide Risk Management on Roads in Serbia" in Progress in Landslide Research and Technology, Springer Cham (2023). https://doi.org/https://doi.org/10.1007/978-3-031-44296-4_23
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Prilog poznavanju režima isticanja vrela Gornji Dušnik, (Suva planina)
Aleksandar Tanasković, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Dušan Polomčić, Ljiljana Vasić, Branislav Petrović (2024)Karstno vrelo Gornji Dušnik nalazi se u istoimenom selu u jugoistočnoj Srbiji, u opštini Gadžin Han. Ovo vrelo drenira zapadne delove Suve planine i kaptirano je za potrebe vodosnabdevanja Gadžinog Hana, kao i sela Gornji i Donji Dušnik. Iako je ovo vrelo kaptirano, sistematska osmatranja isticanja karstnih voda na njemu do sada nisu vršena. U periodu od 1. novembra 1977. do 31. januara 1979. godine, uspostavljen je monitoring na ovom vrelu od strane Geozavoda (merenja vršena sporadično i to ...bilans voda, režim isticanja, autokorelacija, kroskorelacija, spektralna analiza, vrelo Gornji DušnikAleksandar Tanasković, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Dušan Polomčić, Ljiljana Vasić, Branislav Petrović. "Prilog poznavanju režima isticanja vrela Gornji Dušnik, (Suva planina)" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739842
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Prilog poznavanju promena kvalitativnih parametara voda vrela Banje kod Valjeva
Jovana Lončar, Maša Vulović, Veljko Marinović, Branislav Petrović, Radisav Golubović, Vesna Ristić Vakanjac (2024)Zbog nepristupačnosti karstnih masiva i nenaseljenosti slivova karstnih vrela, često se sprovode osmatranja parametara kvaliteta i kvantiteta voda sporadično, po potrebi i to godišnje, sezonski/kvartalno, mesečno, nedeljno. Analize ovako formiranih nizova mogu dovesti do pogrešnih zaključaka, naročito kada se vrše analize ekstrema. Međutim, kada su u pitanju karstne izdanske vode, režim pojedinih parametara može biti jako uslovljen pluviografskim režimom. Najčešći su slučajevi da nakon otapanja snežnog pokrivača, zatim pri kišama jačih intenziteta ili dužih trajanja dolazi do skoro istovremenog ...Jovana Lončar, Maša Vulović, Veljko Marinović, Branislav Petrović, Radisav Golubović, Vesna Ristić Vakanjac. "Prilog poznavanju promena kvalitativnih parametara voda vrela Banje kod Valjeva" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13740037
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Dimenzionisanje deponija za ugalj
Dinko Knežević, Božo Kolonja, Ranka Stanković, Aleksandra Tomašević, Dragana Nišić. "Dimenzionisanje deponija za ugalj" in Jedanaesta međunarodna konferencija o površinskoj eksploataciji OMC, 2014, Zlatibor, 15-18 oktoba 2014, Zlatibor : Jugoskovenski komitet za površinsku eksploataciju (2014)
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Минерагенија зеолитских туфова Србије
Vladan Kašić (2018-02-05)Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет детаљних истраживања, просторно и генетски везана су за вулканске и вулканокластичне стене маринских средина сенонске и неогенске старости и језерске седименте неогене старости и настала су као продукт девитрификације вулканског стакла.Током лабораторијских испитивања при изради ове докторске дисертације, примењене су следеће аналитичке методе: оптичка испитивања петрографских препарата; рендгенска дифракција праха (XRD); скенирајућа електронска микроскопија (СЕМ метода); хемијска карактеризација зеолитских туфова у оквиру ...Vladan Kašić. "Минерагенија зеолитских туфова Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-05)
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Анализа специфичних услова циркулације карстних подземних вода врела Градишта
Јована Јанковић (2024)Карстно врело „Градиште“ налази се у истоименом селу, и користи се у сврху водоснабдевања града Пирота и околних села. Врело је настало на контакту неогених творевина Пиротске котлине и карстног масива Старе планине. Карстна издан сама по себи је хетерогена и анизотропна те се тешко успостављају правила и принципи циркулације подземних вода. О специфичности циркулације предметног врела најбоље говори анализа изотопске методе где је добијена старост воде и установљено постојање полумладих вода које залежу дубље у односу на младе ...... CreBaHonBHh 3.), MoHorpaQ. IIoc. aaj. PI , crp. 77- 119, BeorpaXi Stevanović, Z., Ristić Vakanjac, V., Milanović, S. (Eds) 2012: Climate Changes and Impacts on Water Supply, Belgrade, Faculty of Minig and Geology, p. 551 Stevanović, Z., Dragišić V., 1992: The directions of circulation of karst gr ...
... BOJIHHX pecypca, VHHBep3HTeTCKH yu0eHuk, PI Đ, VHupBepauarer y Beorpaxny, Beorpaj Stevanović Z.,(2015) Characterization of karst aquifer, Monograph: Karst aquifers — characterizationa and engineering, ed. Stevanović Z., Springer, pp. 47-125 Stute M., Schlosser P. (1993) Principles and applications ...
... aMa Koja Cy BpmmmH crpyubaunmH Pyjnapcko- reonomikor (bakynmreTa y OKBHpy HpojeKTa „CCWaters - Climate Changes and Impacts on Water Supply“ (Stevanović, Ristić Vakanjac, Milanović, 2012). IlomoMuuh ca capanHuiruiMa (2014) pani Ha MoJenupab»y crpyjabba HOJGeMHHX BOJIA KapTHe H3\aHH Crape rmaHHHe ...Јована Јанковић. Анализа специфичних услова циркулације карстних подземних вода врела Градишта, 2024
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Condition and behaviour diagnostics of drive groups on belt conveyors
Maneski Taško, Jovančić Predrag, Ignjatović Dragan, Milošević Mitić Vesna, Maneski Miloš. "Condition and behaviour diagnostics of drive groups on belt conveyors" in Journal of Engineering Failure Analysis 22, :Elsevier (2012): 28-37. https://doi.org/DOI: 10.1016/j.engfailanal.201
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Rockfall monitoring and simulation on a rock slope near Ljig in Serbia
Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva (2017)Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva. "Rockfall monitoring and simulation on a rock slope near Ljig in Serbia" in Proceeding of the 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region, Ljubljana 2017, 11 - 13 October 2017 Ljubljana, Slovenia, Book of Abstracts 1, Ljubljana:Geological Survey of Slovenia (2017): 36
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Rockfall monitoring and simulation on a rock slope near Ljig in Serbia
Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva (2018)Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva. "Rockfall monitoring and simulation on a rock slope near Ljig in Serbia" in Proceeding of the 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region 1, Ljubljana, Slovenia:Geological Survey of Slovenia (2018): 83-88
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IPL Project 210 – Massive landsliding in Serbia following Cyclone Tamara in May 2014 - progress report
Abolmasov Biljana, Marjanović Miloš, Đurić Uroš, Samardžić Petrović Mileva, Krušić Jelka. "IPL Project 210 – Massive landsliding in Serbia following Cyclone Tamara in May 2014 - progress report" in Proceeding of IPL Symposium on Landslides 2018, Organized by International Consortium on Landslides (ICL) 1, Kyoto, Japan:International Consortium on Landslides (2018)
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Preliminary results of numerical modelling of debris flow - case study Leva reka, Serbia
Krušić Jelka, Samardžić Petrović Mileva, Marjanović Miloš, Abolmasov Biljana, Miljković Stevan (2018)Krušić Jelka, Samardžić Petrović Mileva, Marjanović Miloš, Abolmasov Biljana, Miljković Stevan. "Preliminary results of numerical modelling of debris flow - case study Leva reka, Serbia" in Proceedings of the 16th Danube-European Conference on Geotechnical Engineering-Geotechnical hazards and risks: Experiences and practices, Skopje, Republic of Macedonia 2, :Willey Ernst and Sons (2018): 707-712
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SrpCNNeL: Serbian Model for Named Entity Linking
Ovaj rad predstavlja razvoj modela za prepoznavanje i povezivanje imenovanih entiteta (NEL) sa bazom znanja Vikipodaci za srpski jezik pod nazivom SrpCNNeL. Model je obučen da prepozna i poveže sedam različitih imenovanih tipova entiteta (osobe, lokacije, organizacije, profesije, događaji, demoni i umetnička dela) na skupu podataka koji sadrži rečenice iz romana, pravnih dokumenata, kao i rečenice generisane iz znanja Vikipodataka baza i Leksimirka leksička baza podataka. Dobijeni model je pokazao dobre performanse, postigavši F1 rezultat od 0,8 na test ...Milica Ikonić Nešić, Saša Petalinkar, Ranka Stanković, Miloš Utvić, Olivera Kitanović. "SrpCNNeL: Serbian Model for Named Entity Linking" in Annals of Computer Science and Information Systems, IEEE (2024). https://doi.org/10.15439/2024F8827