Претрага
1991 items
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Postojeće stanje i budući trendovi u preventivnoj zaštiti podzemnih voda Srbije
Vladimir Živanović (2022)Podzemne vode predstavljaju osnovni, a u mnogim zemljama i jedini resurs za javno vodosnabdevanje stanovništva tako da zaštita podzemnih voda predstavlja bitan preduslov za njihovo dugotrajno i održivo korišćenje. Kako u svetu, tako i u Srbiji, zaštita podzemnih voda se najvećim delom svodi na primenu preventivnih mera zaštite. Kod planiranja zaštite većih prostora sve više se koriste metode za ocenu ranjivosti podzemnih voda. Njihova primena je posebno naglašena u karstnim područjima zato što se tu izdvajaju delovi terena sa ...Zaštita podzemnih voda, karte ranjivosti podzemnih voda, karta hazarda, karte rizika od kontaminacije, monitoring podzemnih voda, SrbijaVladimir Živanović. "Postojeće stanje i budući trendovi u preventivnoj zaštiti podzemnih voda Srbije" in Zbornik radova XVI srpskog Simpozijum o hidrogeologiji sa međunarodnim učešćem, Univerzitet u Beograd, Rudarsko-geološki fakultet (2022)
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Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications
Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалимаDarko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic. "Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications" in Science of Sintering, Bor, August 2024, National Library of Serbia (2024). https://doi.org/10.2298/SOS240701029B
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Примена ауторегресионих модела за потребе краткорочних прогноза истицања карстних врела
Вељко Мариновић, Весна Ристић Вакањац, Саша Милановић, Љиљана Васић, Бранислав Петровић, Душан Поломчић, Радисав Голубовић (2023)Модел вишеструке линеарне регресије је најчешће примењивани модел за симулације, односно прогнозе одговарајућих случајно променљивих величина. Као најједноставнији модели примењују се ауторегресиони (АР) модели који симулирају истицање карстних врела на основу издашности врела регистрованих претходних дана. АР модели примењени су на примерима Великог врела за шестогодишње периоде осматрања, односно врела Бање и Гостиљског врела за десетогодишње периоде осматрања. Укључивањем више независних величина, коефицијенти корелације безначајно расту, те је препорука да се максимално 3 независне променљиве укључе у симулациони модел. ...Вељко Мариновић, Весна Ристић Вакањац, Саша Милановић, Љиљана Васић, Бранислав Петровић, Душан Поломчић, Радисав Голубовић. "Примена ауторегресионих модела за потребе краткорочних прогноза истицања карстних врела" in 50. симпозијум о операционим истраживањима - SYM-OP-IS 2023, Тара, 18–21. септембар 2023., Београд : Медија центар „Одбрана” (2023)
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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)
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First outcomes from new approach in assessing recharge of highly karstified terrains - cases examples from Montenegro
Radulović Milan, Stevanović Zoran, Radulović Mićko. "First outcomes from new approach in assessing recharge of highly karstified terrains - cases examples from Montenegro" in Advances in Research in Karst Media, Heidelberg:Springer (2010): 25-30
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Time series analysis of Saraw spring - SE of Sulaimaniya (Iraqi Kurdistan region)
Ali S.S., Stevanović Zoran (2010)Ali S.S., Stevanović Zoran. "Time series analysis of Saraw spring - SE of Sulaimaniya (Iraqi Kurdistan region)" in Advances in Research in Karst Media, Heidelberg:Springer (2010): 89-94
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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... does not in any way pollute the surrounding soil that is below or above the deposit. The contents of heavy metals in the top soil of the mentioned cities in Serbia, Region, Europe and World are mainly a consequence of the geological composition and geochemical background of that region, as well as a ...
... 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 9% International Conference MINING AND ENVIRONMENTAL PROTECTION May 2023, Serbia HEAVY METALS IN LIGNITE AND SOIL OF KOSTOLAC-KOVIN COAL BASIN ...
... coal. 2. GEOCHEMISTRY OF LIGNITE, ACCOMPANYING SEDIMENTS AND SOIL IN THE BASIN AREA Numerous analyzes were taken to determine the quality of lignite, as well as numerous others for geotechnical and hydrogeological purposes. In the last ten years, special attention has been paid to the ecological ...Bogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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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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Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)
This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...... belt of several units of Adriatic a�nity, i.e., the Pre-Karst, High Karst, and Budva- Cukali, and the Dalmatian units (Fig. 1B; Schmid et al., 2020). In more detail, this study covers the Mesozoic– Cenozoic sedimentary succession of the High Karst Unit, which is thrust towards the southwest over the ...
... belt of several units of Adriatic affinity, ie., the Pre-Karst, High Karst, and Budva- Cukali, and the Dalmatian units (Fig. 1B; Schmid et al., 2020). In more detail, this study covers the Mesozoic- Cenozoic sedimentary succession of the High Karst Unit, which is thrust towards the southwest over the Dalmatian ...
... Dinarides (Hrvatović, 2006; Fig. 1). �e area inves- tigated is in the High Karst zone of the Adriatic Carbonate Platform that extends along the Adriatic seashore from Italy to Albania and is one of the largest Mesozoic carbonate plat- forms in the Perimediterranian region (Juračić and Palinkaš, 2004; ...Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić. "Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)" in Annales Societatis Geologorum Poloniae (2021). https://doi.org/10.14241/asgp.2021.16
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Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia
Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...... with the downhole geophysical logging and groundwater quality analyses, are shown to be highly relevant in assessing geothermal characteristics. Elevated geothermal gradients (average about 6 "C/100 m), structural assembly, especially Kolubara and Banjska faults, as well as existing occurrences of thermal ...
... geophysical logging); • „Analysis of the spatial distribution of geothermal gradients and the thickness of Miocene sediments; • Calculation of the expected temperatures in the Triassic reservoir. A review of existing documentation was conducted, and relevant data were stored in a dedicated database ...
... periphery, interpretations of gravimetric and magnetotelluric geophysical research data, drilling core logging and creation of a series of auxiliary geological profiles. Results are interpreted in the form of a geological and structural map of the Neogene basement, containing isolines of the interpreted ...Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić. "Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia" in Proceedings 9th International Conference mining and environmental protection, MEP23, Sokobanja, 24-27th May 2023, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... system for diagnosing well behavior in deep well pumping, the following elements are required: l. A database of dynamogram shapes for typical problems in deep well pumping systems, generated from the analysis and classification of recorded dynamograms from fields in Serbia, as well as from published ...
... machine learning in diagnosing the operation of deep well pumps, with particular emphasiıs on fault detection and operational conditions of these critical components. In the first part, we will explore the role and function of deep well pumps in the oil production process. Deep well pumps are crucial ...
... technology. 2. ROLE AND FUNCTION OF DEEP WELL PUMPS IN OIL PRODUCTION 2.1 Overview of deep well pumping systems In practical applications, oil production is most commonly achieved through deep well pumping using rod pumps. Figure 2.1 illustrates a deep well pumping system that includes both surface ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive
Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2011)... Milanovic, S., Dokmanovic, P., Hajdin, B. (2005): Management of Karst Aquifers in Serbia for Water Supply – Achievements and Perspectives, In : Water resources and environmental problems in karst, Proceedings of the IAH Conf. KARST 2005, Stevanovic, Z. and Milanovic, P. (eds.): 283-290, Belgrade ...
... pap. of International symposium “Water Quality” , pp.33- 40, Čačak 77 18. Stevanović Z., (1994)b: Karst ground waters of Carpatho-Balkanides in Eastern Serbia, in: Monography “Ground Waters in Carbonate Rocks of the Carpathian - Balkan Mountain Range “ (ed. Z. Stevanović, B. Filipović), pp.203-237 ...
... he-art and perspectives of arti'cial recharge in groundwater supply of large cities of the Carpathian-Balkan region, Proceedings of the XVIII Congress CBGA, Belgrade 23. Stevanović Z. (2009): Karst groundwater use in the Carpathian-Balkan region. In: Global Groundwater Resources and Management (ed ...Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić. "Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive" in Naših 40 godina, Beograd : Rudarsko-geološki fakultet (2011): 49-77
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Tectonic fabric as the main factor for privileged groundwater pathways, discharge regime and thermal properties within the same karstic system of Vidlic Mt. (Serbia)
Stevanović Zoran, Ristić-Vakanjac Vesna, Milanović Saša, Vasić Ljiljana, Petrović Branislav, Čokorilo Marina (2013)Stevanović Zoran, Ristić-Vakanjac Vesna, Milanović Saša, Vasić Ljiljana, Petrović Branislav, Čokorilo Marina. "Tectonic fabric as the main factor for privileged groundwater pathways, discharge regime and thermal properties within the same karstic system of Vidlic Mt. (Serbia)" in Book of abstracts of the International Symposium on Hierarchical Flow Systems in Karst Regions KARSTFLOW 2013, Budapest, :IAH (2013): 132
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Просторна анализа епикарста у оквиру карстног система источног дела Суве планине
Епикарст представља највиши део стенске масе који је изложен карстификацији, при чему су главне карактеристике епикарста акумулирање подземне воде и стварање услова за формирање концентрисаних токова у подини ове зоне. У досадашњој пракси истраживања епикарста углавном су коришћене индиректне методе: даљинска детекција, анализа хидрограма карстних врела, хидрохемијске и изотопске анализе, па чак и опити трасирања, док је са друге стране јако мали број истраживача изучавао епикарст директним теренским истраживањима. У раду je приказана иновирана методологија истраживања епикарста, која користи ...Бранислав Петровић, Зоран Стевановић, Вељко Мариновић, Снежана Игњатовић. "Просторна анализа епикарста у оквиру карстног система источног дела Суве планине" in XVI српски симпозијум о хидрогеологији са међународним учешћем, Универзитет у Београду, Рударско-геолошки факултет (2022)
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Hydrogeochemical pathways of the karst-fissured aquifer system, Pirot (Serbia)
Marina Ćuk, Igor Jemcov, Maja Todorović, Ana Mladenović. "Hydrogeochemical pathways of the karst-fissured aquifer system, Pirot (Serbia)" in Proceedings of 4th Conference of the IAH CEG (Central European Group of IAH) and Guide of Geotrip of the IAH Karst Commision, University of Belgrade, Faculty of Mining and Geology, Department for Hydrogeology, Centre for Karst Hydrogeology (2019)
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Hidrogeološke karakteristike sliva reke Nišave sa posebnim osvrtom na karst i mogućnosti racionalnog korišćenja izdanskih voda
Dušan Marković (1989)Dušan Marković. Hidrogeološke karakteristike sliva reke Nišave sa posebnim osvrtom na karst i mogućnosti racionalnog korišćenja izdanskih voda, Beograd:Rudarsko-geološki fakultet, 1989
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Classical Dinaric karst aquifer – an overview of its past and future (Key note paper)
Stevanović Zoran, Pekaš Željko, Jolović Boban, Pambuku Arben, Radojević Dragan. "Classical Dinaric karst aquifer – an overview of its past and future (Key note paper)" in Proceedings of the DIKTAS Conference: “Karst without boundaries”, Trebinje, June 11-15 2014, Trebinje:DIKTAS Project : Grafokomerc (2014): 23-26
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Hydraulic behaviour of a subthermal karst spring - Blederija spring, Eastern Serbia
Živanović Vladimir, Dragišić Veselin, Jemcov Igor, Atanacković Nebojša. "Hydraulic behaviour of a subthermal karst spring - Blederija spring, Eastern Serbia" in Karst without Boundaries. IAH - Selected Papers on Hydrogeology no. 23, Netherland:CRC Press/Balkema (2016): 259-268. https://doi.org/10.1201/b21380-22
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Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements
Ristić-Vakanjac Vesna, Stevanović Zoran, Čokorilo Ilić Marina. "Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements" in Proceedings of the DIKTAS Conference: “Karst without boundaries”, Trebinje, June 11-15 2014, Trebinje:DIKTAS Project : Grafokomerc (2014): 201-206
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Хидрогеолошки потенцијал карстних масива Озрена и Девице
Саша Стојадиновић, Михаило Шевић, Јаков Андријашевић. "Хидрогеолошки потенцијал карстних масива Озрена и Девице" in XVII Конгрес геолога Србије (Зборник радова XVII српског геолошког конгреса), Врњачка Бања, 17-20.05.2018., Српско геолошко друштво, Београд, Србија (2018)