Претрага
747 items
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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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 ...... n and a Failure Mode and Effects Analysis (FMEA). RPN methodology is a technique for analyzing the risk associated with any potential problems identified during an FMEA. However, there is a great deal of debate among FMEA practitioners as to the correct analysis procedure, and some analyses may include ...
... Z. Criticality analysis of petrochemical assets using risk based maintenance and the fuzzy inference system. Process Saf. Environ. 2019, 121, 312–325. [CrossRef] 17. Chandima Ratnayakea, R.M.; Antosz, K. Development of a Risk Matrix and extending the risk-based maintenance analysis with fuzzy logic ...
... H.-C.; Liu, L.; Liu, N. Risk evaluation approaches in failure mode and effects analysis: A literature review. Expert Syst. Appl. 2013, 40, 828–838. [CrossRef] 23. Kahneman, D.; Tversky, A. Prospect theory: An analysis of decision under risk. In Handbook of the Fundamentals of Financial Decision Making: ...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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Geologic Information System of Serbia
Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...... Implementation, Geodatabase. Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase ...Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović. "Geologic Information System of Serbia" in Proceedings of the 17th Meeting of the Association of European Geological Societies, 14.-18. september 2011., Beograd : Srpsko geološko društvo (2011)
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Korelacija magnetnog susceptibiliteta i sadržaja metala u flotacijskom jalovištu
Procena metala u rudama, jalovištu i zemljištu se tradicionalno određuje hemijskim metodama kao što su Rengen fluorescentna analiza (XRF), Instrumentalna neutronska aktivaciona analiza (INAA) i Masena spektrometrija induktivno spregnute plazme (ICP-MS). Neke od pomenutih metoda su veoma zahtevne i skupe, te se nametnula potreba ka traženju jeftinijeg alata za brzu procenu prisustva pojedinih metala. Tokom poslednjih nekoliko decenija, mnoge studije su pokazale da su magnetna merenja dovoljno osetljiva da detektuju magnetni signal feromagnetnih materijala, a samim tim i metala ...Filip Abramović, Vesna Cvetkov, Aco Ilić, Dragana Životić. "Korelacija magnetnog susceptibiliteta i sadržaja metala u flotacijskom jalovištu" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia
Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović. "Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia" in Progress in Landslide Research and Technology, Volume 3, Issue 1, Springer Cham. (2024). https://doi.org/https://doi.org/10.1007/978-3-031-55120-8_22
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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... the study area (Nagy et al. 1999). 168 Nagy Z.R. & al. Fels6ors Basin Szenitkiraly- szabadja Platform i Microfacies Analysis Ammonite Thin-section analysis has Zonel/Subzone o M been conducted in order to characterize the microfacies of the lower (MF1) and upper unit [-i .9 ...
... 2023-11-06 11:13:48 Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag Дигитални ...
... Београду [ДР РГФ] Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy | Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag | Rivista ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)
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Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints
Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski. "Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints" in Journal of Geodynamics, Elsevier BV (2024). https://doi.org/10.1016/j.jog.2024.102058
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?
... (Oxford Instruments). The small amount of the skim was gently removed from the surface and glued onto a graphite strip, without covering. Chemical analysis was performed on unpolished pieces, using the EDS detector and the internal standards. Historic background The gold nugget was mined in ...
... number of the replica made, and the type and manner of material that was used for covering. Result and conclusion The data obtained by EDS analysis show that the gypsum model is covered with gold leaf, which was expected according to the macroscopic characteristic of the object. How many ...Alena Zdravković, Maja Milošević, Ivana Jelić. "Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
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Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy
... was fabricated. By the size and orientation of the pores, it is evident that the pot was manufactured by the application of a mould. SEM-EDS analysis was performed on the inner parts of the walls of the investigated samples and their surface area. When samples are compared slight difference ...
... groundmass and pores have a directional appearance, consistent with previous observations, and a slightly higher amount of calcite grains. EDS analysis gives clear differences in the chemistry of the samples. Sample 1 has a higher content of most investigated elements when compared to sample ...Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana. "Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
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On the optimality of some multi-point methods for finding multiple roots of nonlinear equation
Ralević Nebojša, Ćebić Dejan (2016)Ralević Nebojša, Ćebić Dejan. "On the optimality of some multi-point methods for finding multiple roots of nonlinear equation" in Nonlinear Analysis: Modelling and Control 21 no. 1 (2016): 121-134
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Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone
The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...Emő Márton, Marinko Toljić, Vesna Cvetkov. "Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone" in Journal of Geodynamics, Elsevier BV (2022). https://doi.org/10.1016/j.jog.2021.101880
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Landslide Umka-the first automated monitoring project in Serbia
Abolmasov Biljana, Milenković Svetozar, Jelisavac Branko, Vujanic Vladeta. "Landslide Umka-the first automated monitoring project in Serbia" in 2nd Project workshop-Monitoring and analysis for disaster mitigation of landslides, debris flow and floods, Book of Abstracts 1 no. 1, Rijeka, Croatia:University of Rijeka and JICA (2012): 77-80
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3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies
Abolmasov Biljana, Pejić Marko (2012)Abolmasov Biljana, Pejić Marko. "3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies" in 2nd Project workshop-Monitoring and analysis for disaster mitigation of landslides, debris flow and floods, Book of Abstracts 1 no. 1, Rijeka, Croatia:University of Rijeka and JICA (2012): 81-84
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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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Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”
... pre-extraction and extrac- tion stage of the underground deposit mining project. Pre-extraction activity in view of mine surveying includes: - Analysis of the existing geometric base on the terrain surface, stabilization of new geodetic points and determination of their spatial coordinates; - ...
... - Detailed scanning of the open pit levels (Figure 5), which are interactive with the designed bench drifts for the purposes of geomechanical analysis of the stability; - Detailed scanning of the existing mine chambers. Figure 5 Parts of open pit benches in interaction with bench drifts The ...
... to be used for setting out. In this stage, the a priori accuracy assessment is the most important task in view of mine surveying, because this analysis de�nes the setting out method, the type of surveying instruments and their class, as well as the accuracy itself and the number of repetitions ...Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić. "Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”" in Revista Escola de Minas, School of Mines Magazine, Sao paulo, Brasil : SciELO (2015)
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Proceedings of the Bulgarian Academy of Sciences, Bulgaria, 28. maj 2024 , Prof. Marin Drinov Publishing House of BAS (Bulgarian Academy of Sciences) (2024). https://doi.org/10.7546/CRABS.2024.07.10
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Machine Learning and Landslide Assessment in a GIS Environment
Marjanović Miloš, Bajat Branislav, Abolmasov Biljana, Kovaćević Miloš. "Machine Learning and Landslide Assessment in a GIS Environment" in Geo Computational Analysis and Modeling of Regional Systems, Part of Advances in Geographic Information Science Book Series (AGIS), :Springer International Publishing (2018): 191-213. https://doi.org/10.1007/978-3-319-59511-5_11
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... practice between Serbian reserve categories and categories according to the JORC or similar classifications [26–30]. 2. Materials & Methods The analysis and assessment of current situation in the mining industry in Serbia, presented in this paper, deals with some of the important factors that influence ...
... relationship between the origin of clays and their quality and morphology of de- posits, and quite a large database of unpublished reports. In this analysis we were using results from numerous geological reports on different industrial clays that were prepared in the last 60 years. It included a couple ...
... were numerous papers and studies in which geology, mineralogy and origin of different indus- trial clays were studied [31–40]. Our assessment and analysis included four issues: The first issue was related to existing mining legislation, improvements that were performed in the last ten years, and ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)
In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinicaAna Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković. "Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)" in Swiss Journal of Geosciences, Springer (2019). https://doi.org/10.1007/s00015-018-0324-5