Претрага
3512 items
-
Present Situation and Alternative Water Supply Solutions for Northern Vojvodina (Serbia)
The northern part of the Autonomous Province of Vojvodina is situated in the central and southeastern sectors of the Pannonian Basin. Drinking water supply is provided by groundwater abstraction from depths of 60 to 200 m. The quality of that water is poor, especially due to high concentrations of arsenic which most water supply systems do not remove. Current planning documents call for the construction of large regional water supply schemes on the banks of the Danube and Tisa ...Bojan Hajdin, Vesna Ristić-Vakanjac, Dušan Polomčić. "Present Situation and Alternative Water Supply Solutions for Northern Vojvodina (Serbia)" in Proceedings of Bulgarian Academy of Sciences, "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences (2020). https://doi.org/10.7546/CRABS.2020.04.09
-
Praktikum iz inženjerske geologije
Miloš Marjanović, Biljana Abolmasov, Uroš Đurić, Jelka Krušić. Praktikum iz inženjerske geologije, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2020
-
Numerical Modeling and Simulation of the Effectiveness of Groundwater Source Protection Management Plans: Riverbank Filtration Case Study in Serbia
The paper describes the establishment and testing of an algorithm for developing sustainable management plans associated with groundwater source protection against potential pollutants and discusses the effectiveness of individual systems. The applied methodology pertains to groundwater resource management, particularly those cases that involve riverbank filtration. Namely, groundwater (numerical) modeling is employed to examine the groundwater regime and balance, as well as to create protection systems and illustrate their effectiveness. Particle tracking analysis is used to study pollutants’ travel and ...Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin, Dragan Pamučar. "Numerical Modeling and Simulation of the Effectiveness of Groundwater Source Protection Management Plans: Riverbank Filtration Case Study in Serbia" in Water, MDPI AG (2022). https://doi.org/10.3390/w14131993
-
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
-
Резултати иницијалних хидрогеолошких истраживања карстног врела Бијели Нерини (централна Црна Гора)
Врeлo ’’Биjeли Нeрини’’ (305 мнв) нaлaзи нa сjeвeрoзaпaдним oбрoнцимa планине Мaгaник, изнaд кoритa риjeкe Мртвицe (на њеној десној обали). Извoриштe je рaзбиjeнoг типa, кoje je зaтрпaнo крупним блoкoвимa крeчњaкa и дoлoмитa. Извoриштe je вeoмa издaшнo, сa прeтпoстaвкoм дa у минимуму имa приближно 500 л/с, дoк му мaксимум прeлaзи и прeкo 2000 л/с, aли збoг кoнфигурaциje тeрeнa je зa сaдa билo вeoмa тeшкo пoтврдити тe вeличинe. Прeдстaвљa сeгмeнт који упoтпуњуje цjeлoкупну слику геолошких и физичкo-гeoгрaфских спeцифичнoсти кaњoнa риjeкe Мртвицe, десне ...Голуб Ћулафић, Вељко Мариновић, Јелена Крстајић, Бранислав Петровић. "Резултати иницијалних хидрогеолошких истраживања карстног врела Бијели Нерини (централна Црна Гора)" in Записници Српског геолошког друштва (за 2021. годину), Српско геолошко друштво (2022)
-
Integrating landslide magnitude in the susceptibility assessment of the City of Doboj, using machine learning and heuristic approach
In this work, landslide assessment of the Doboj City area was modeled by combining machine learning and heuristic tools. The machine learning part was used to map the Morphometric factor. i.e. probability of landslides based on relation between the magnitude of events and morphometric parameters: elevation, distance to streams, slope, profile curvature, and aspect. The Random Forest and Support Vector Machines algorithms were implemented in the learning protocol, which included several strategies: balancing of the training/testing set size, algorithm ...Cvjetko Sandić, Miloš Marjanović, Biljana Abolmasov, Radislav Tošić. "Integrating landslide magnitude in the susceptibility assessment of the City of Doboj, using machine learning and heuristic approach" in Journal of Maps, Taylor&Francis (2023). https://doi.org/ 10.1080/17445647.2022.2163199
-
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
-
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
-
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)
-
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
-
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
-
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
-
Geobaza za rudnike sa površinskom eksploatacijom
Tomašević Aleksandra, Stanković Ranka, Kolonja Ljiljana, Lilić Nikola. "Geobaza za rudnike sa površinskom eksploatacijom" in Zbornik radova X međunarodna konferencija o površinskoj eksploataciji - OMC , 2012, :Izdavač Jugoslovenski komitet za površinsku eksploataciju (2012): 341-351
-
Rešenje sistema za navodnjavanje spoljašnjeg odlagališta površinskog kopa Drmno
Milanović Radomir, Vuković Zoran, Dimitrijević Bojan, Pavlović Milan. "Rešenje sistema za navodnjavanje spoljašnjeg odlagališta površinskog kopa Drmno" in Zbornik radova 5. Međunarodna konferencija UGALj 2011 no. V, Zlatibor, Srbija:Jugoslovenski Komitet za površinsku eksploataciju Saveza inženjera rudarstva i geologije Srbije (2011): 191-198
-
Уштеда енергије правилним избором дробилице
Деушић Славен, Кнежевић Динко, Колоња Божо, Томашевић Александра. "Уштеда енергије правилним избором дробилице" in Зборник радова 8. међународног симпозијума Механизација и аутоматизација у рударству и енергетици МАРЕН 2010, Лазаревац, 16-18.06.2010, Београд, Србија:Универзитет у Београду, Рударско-геолошки факултет (2010): 121-130
-
Long-lived Radioactive Elements and REE as Fingerprints of Deep Groundwater Flow
Marina Ćuk Đurović, Maja Todorović, Igor Jemcov, Petar Papić. "Long-lived Radioactive Elements and REE as Fingerprints of Deep Groundwater Flow" in EGU General Assembly 2021, EGU (2021)
-
Understanding a volcanic history of SW part of Lece Volcanic Complex from plagioclase composition, zircon geochemistry and U-Pb age
Bojan Kostić (2019)Bojan Kostić. "Understanding a volcanic history of SW part of Lece Volcanic Complex from plagioclase composition, zircon geochemistry and U-Pb age" in 14. Workshop of the International Lithosphere Program Task Force Sedimentary Basins, Hungarian geological society (2019)
-
Халкантит као секундарни минерал бакра у лежишту Чока Марин, Србија
Алена Здравковић, Александар Пачевски, Предраг Дабић, Периша Живковић. "Халкантит као секундарни минерал бакра у лежишту Чока Марин, Србија" in 18. Конгрес геолога Србије "Геологија решава проблеме", Дивчибаре, 1-4. јун 2022., Српско геолошко друштво (2022)
-
Mineral safeguarding in Serbia
Vladimir Simić, Dragana Životić, Zoran Miladinović. "Mineral safeguarding in Serbia" in Mineral deposits safeguarding as a basis of mineral raw materials safety, 10–11 May 2022 Kraków, Poland, Publishing House MEERI PAS (2022)
-
Stanje i potencijalnost tehničko-građevinskog kamena Jadransko-jonske zone Crne Gore
Darko Božović, Dragan Radulović, Vladimir Simić. "Stanje i potencijalnost tehničko-građevinskog kamena Jadransko-jonske zone Crne Gore" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)