Претрага
3672 items
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Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia
Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković (2022)Regional geochemical research of residual soil was conducted in an area of about 20,000 km2 in the region of Central and Western Serbia, where six metallogenetic zones and mining since ancient times have been documented. The geochemical background variation in the residual soil was established upon the contents, spatial pattern and natural background of potentially toxic elements (PTEs). The limits of natural background values (mg·kg-1) were determined by the integral method. Our data show that anomalous concentrations of As, ...Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković. "Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia" in Periodico di Mineralogia (2022). https://doi.org/10.13133/2239-1002/17042
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Estimating hydraulic parameters for the complex hydrodynamic models
Hydrodynamic models have usually been calibrated manually, by trial-and-error, with different values of hydraulic parameters and hydraulic characteristics of boundary conditions. This method of calibration and estimation of hydraulic parameters requires an extensive knowledge and experience of experts, but whether the resulting solution includes an optimal set of parameters still remains an open question. An optimization method founded upon the Gauss-Marquardt-Levenberg algorithm, along with PEST software based on that algorithm, introduces automation of model calibration with regularization, which substantially ...Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Bojan Hajdin. "Estimating hydraulic parameters for the complex hydrodynamic models" in Mining and Metallurgy Engineering Bor, Centre for Evaluation in Education and Science (CEON/CEES) (2018). https://doi.org/10.5937/mmeb1704029P
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Probabilistic analysis of anisotropic rock slope with reinforcement measures
During the construction of E75 highway through Grdelica gorge in Serbia, a major failure occurred in the zone of reinforced rock slope. Excavation was performed in highly anisotropic Paleozoic schist rock formation. The reinforcement consisted of the two rows of micropile wall with pre-stressed anchors. Forces in anchors were monitored with load cells while benchmarks were installed for superficial displacement measurements. The aim of the study is to investigate possible causes of instability considering different probability distributions of the ...Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović, Svetlana Melentijević. "Probabilistic analysis of anisotropic rock slope with reinforcement measures" in Geomechanics and Engineering (2023). https://doi.org/10.12989/gae.2023.34.3.285
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Application of the PROMETHEE and VIKOR methods for selecting the most suitable carbon dioxide geological storage option
CO2 storage in geological formations is one of the leading solutions for mitigation of greenhouse gas emissions. Types of geological formations that can be used for CO2 storage, that are discussed in this paper are: depleted oil and gas reservoirs, saline aquifers and injection CO2 in partially depleted oil reservoirs for enhanced oil recovery (EOR–CO2 method). In order to select the most suitable geological storage of CO2, the ranking of these storage options was performed using two methods of ...Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac. "Application of the PROMETHEE and VIKOR methods for selecting the most suitable carbon dioxide geological storage option" in Underground Mining Engineering, Belgrade : University Of Belgrade - Faculty of Mining and Geology (2019)
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Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia
Natural gas is considered as the most environmentally acceptable fossil fuel, thus it is an alternative to petroleum derivate, dominantly used in internal combustion engines. Physical properties of a fuel as well as behavior during combustion process are affected by its composition. This article presents analysis of effect of natural gas composition on methane number (MN), conducted for natural gas deposits in Serbia. For empirically determination of MN: California air resources board (CARB) method and Linear and Anstalt für ...Marija Živković, Milica Ivić, Dejan Ivezić, Aleksandar Madžarević. "Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia" in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects (2017). https://doi.org/10.1080/15567036.2017.1403518
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Development of Integrated Fuzzy Model for Mine Management Optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)Technoeconomic, environmental and safety criteria generally affect the management of metallic and non-metallic mining operations. The first basic question that needs to be addressed when planning ore mining is which methods are adequate and what is the optimal mining technology? Due to the complex geologic framework of ore deposits, geological exploration has rendered synonymous the inherent uncertainties, vagueness, and inaccuracies. As a result, subjective evaluation by engineers and expert experience have become increasingly important. Given that the natural language ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of Integrated Fuzzy Model for Mine Management Optimization" in Comptes rendus de l’Académie Bulgare des Sciences, Bulgarian Academy of Sciences (2023). https://doi.org/10.7546/CRABS.2023.09.12
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Transformer-Based Composite Language Models for Text Evaluation and Classification
Parallel natural language processing systems were previously successfully tested on the tasks of part-of-speech tagging and authorship attribution through mini-language modeling, for which they achieved significantly better results than independent methods in the cases of seven European languages. The aim of this paper is to present the advantages of using composite language models in the processing and evaluation of texts written in arbitrary highly inflective and morphology-rich natural language, particularly Serbian. A perplexity-based dataset, the main asset for the ...Mihailo Škorić, Miloš Utvić, Ranka Stanković. "Transformer-Based Composite Language Models for Text Evaluation and Classification" in Mathematics, MDPI AG (2023). https://doi.org/10.3390/math11224660
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Tracking of the temporal dependency of fading of the human footprint temperature contrast
In certain situations, it is extremely important to determine the exact time “someone” entered or crossed the forbidden zone of a military or strategic installation, a red zone of radioactive, chemical, or biological contamination, a bank or similar structure. Standard security measures include ordinary video surveillance using cameras that operate in the visible range of the electromagnetic spectrum, as well commercial thermal imaging cameras [1, 2]. The paper presents the results of experiments that suggest another possible use of ...Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Darko Vasiljević, Danica Pavlović. "Tracking of the temporal dependency of fading of the human footprint temperature contrast" in VIII International School and Conference on Photonics, Belgrade, Serbia, 23-27 August 2021, Institute of Physics Belgrade (2021)
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Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla
Lana Mitrović (2024)U radu su prikazane najznačajnije osobine prirodnog gasa, uključujući hemijski sastav, jednačine sagorevanja i termodinamičke karakteristike koje predstavljaju osnovu za dalje razumevanje rada. Prikazane su količine prirodnog gasa na evropskom trţištu prema zemlji porekla, kao i njihove zasebne hemijske i termodinamičke karakteristike.Kvalitet prirodnog gasa u Republici Srbiji je posebno poglavlje u radu u okviru kog je detaljnjije opisano snabdevanje Republike Srbije prirodnom gasom, kao i zahtevani kvalitet.Na kraju, obuhvatajući sve prethodno navedeno, prikazan je postupak rešavanja Studije slučaja koja ...Lana Mitrović . Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla, 2024
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Informatički aspekti izdavanja zajedničkih diploma na nivou Univerziteta u Beogradu
Odžić Irena, Blagojević Ognjen, Protić Jelica, Obradović Ivan, Bokan Neda. "Informatički aspekti izdavanja zajedničkih diploma na nivou Univerziteta u Beogradu" in Zbornik radova XVI Skup Trendovi razvoja: “Bolonja 2010: stanje, dileme i perspektive”, Kopaonik, Mart 2010 (2010): 125-128
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Analiza distribucije prašine na području površinskog kopa uglja Delići
Lilić Nikola, Kolonja Božo, Knežević Dinko, Cvjetić Aleksandar. "Analiza distribucije prašine na području površinskog kopa uglja Delići" in Zbornik radova VI međunarodne konferencije Ugalj 2013, Zlatibor, 02-05.10.2013 (2013): 153-162
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Secondary sulfate minerals associated with the weathering of pyrite
Dabić Predrag, Kovač Sabina, Zdravković Alena. "Secondary sulfate minerals associated with the weathering of pyrite" in XXIII konferencija Srpskog kristalografskog društva (izvodi radova) XXIII konferencija Srpskog kristalografskog društva (izvodi radova), Novi Sad, Srbija :Srpsko kristalografsko društvo (2016): 64-65
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Novi državni referentni sistem Republike Srbije i podela na listove karata i planova
Ganić Aleksandar, Milutinović Aleksandar, Trifunović Prvoslav. "Novi državni referentni sistem Republike Srbije i podela na listove karata i planova" in Podzemni radovi no. 21, Beograd : Rudarsko-geološki fakultet, Beograd (2012): 69-82
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Ispitivanje anizotropije stenskih masa merenjem brzine prostiranjja ultrazvučnih talasa
Gligorić Miloš, Majstorović Jelena, Lutovac Suzana. "Ispitivanje anizotropije stenskih masa merenjem brzine prostiranjja ultrazvučnih talasa" in Zbornik radova sa V naučno - stručnog skupa „Podzemna eksploatacija mineralnih sirovina 2017, Beograd, 08.12.2017, Beograd:Univerzitet u Beogradu – Rudarsko – geološki fakultet (2017): 63-70
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Arsen u podzemnim vodama za vodosnabdevanje Vojvodine
Marina Ćuk, Maja Todorović, Jana Stojković. "Arsen u podzemnim vodama za vodosnabdevanje Vojvodine" in XIV Srpski simpozijum o hidrogeologiji, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2012)
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Revisiting the Early Jurassic (Sinemurian) brachiopod fauna from Smokovac, Montenegro
Michael R. Sandy, Barbara V. Radulović, Martin Đaković. "Revisiting the Early Jurassic (Sinemurian) brachiopod fauna from Smokovac, Montenegro" in The 13th Romanian Symposium of Palaeontology, Iași, September 16th to 17st, 2021, Editura Tehnopress Iași, 2021 (2021)
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Coordinated Miocene clockwise rotation of the Vardar Zone and the Drina-Ivanjica unit
Máté Velki, Emő Márton, Vesna Cvetkov. "Coordinated Miocene clockwise rotation of the Vardar Zone and the Drina-Ivanjica unit" in XVIII Kongres geologa Srbije, Divčibare, Srbija (01-04.2022.), Srpsko geološko društvo (2022)
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Naftno-matične stene i njihova zrelost u području Bašaida (Panonski basen)
Nikoleta Aleksić, Aleksandar Kostić (2022)Nikoleta Aleksić, Aleksandar Kostić. "Naftno-matične stene i njihova zrelost u području Bašaida (Panonski basen)" in 18. Kongres geologa Srbije "Geologija rešava probleme", 01-04. jun 2022., Srpsko geološko društvo (2022)
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Geodynamic history unveiled from rock archives: The case of central Balkan Peninsula
Vladica Cvetković (2023)Vladica Cvetković. "Geodynamic history unveiled from rock archives: The case of central Balkan Peninsula" in International Conference Natural Resources and Environmental Risks: Towards a Sustainable Future, Novi Sad, October 13–15, 2023, Beograd (2023)
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Realizacija izdavanja zajedničkih diploma Univerziteta u Beogradu: softverski, logistički i pravni problemi
Mitrović Irena, Blagojević Ognjen, Protić Jelica, Popović Miodrag, Obradović Ivan. "Realizacija izdavanja zajedničkih diploma Univerziteta u Beogradu: softverski, logistički i pravni problemi" in Zbornik radova XVII Skup Trendovi razvoja: “Evropa 2020: Društvo zasnovano na znanju”, Kopaonik, Mart 2011 (2011): 201-204