Претрага
297 items
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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
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Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field
Most of the wells in the oilfield Turija are operating with sucker rod pumps, where casing pressure at around 15 bar, and with marginal production rates. The high value of casing pressure indicates high pressure on the face of the formation and depends directly on well productivity. In addition, with increasing value of the casing pressure gas column in the annulus is moving the dynamic fluid level near pump intake and more gas is entering the pump, it results ...beam gas compressor, BGC, increase productivity, sucker rod pump, SRP, mature field, artificial lift, production optimisationBojan Martinović, Dušan Danilović, Branko Grubač, Robert Fadiga. "Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field" in International Journal of Oil Gas and Coal Technology (2022)
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Tektonske i petrološke karakteristike severne srpsko-makedonske subjedinice
Maja Maleš, Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić. "Tektonske i petrološke karakteristike severne srpsko-makedonske subjedinice" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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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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The efficiency of chemical cleaning of different metal artefacts from Felix Romuliana and Gradina archaeological sites (Serbia)
Slobodan Bogojević, Kristina Šarić, Bojan Kostić, Suzana Erić. "The efficiency of chemical cleaning of different metal artefacts from Felix Romuliana and Gradina archaeological sites (Serbia)" in Archaeology and science, Beograd : Center for New Technology Viminacium Institute of Archaeology Belgrade (2022)
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Stratigrafski i tektonski polozaj gornjokrednih krečnjaka Rujevca (zapadna Srbija)
Marinko Toljić, Bojan Glavaš-Trbić, Danica Srećković-Batoćanin. "Stratigrafski i tektonski polozaj gornjokrednih krečnjaka Rujevca (zapadna Srbija)" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Double traveling valve increases rod-pump efficiency
Traditional sucker rod pumps (SRP) use a single traveling valve, but recent double traveling valve innovations have improved SRP performance and efficiency in field applications with double traveling valves installed in pumps with top mechanical seating. The valves sealed better and produced similar fluid volumes compared with the previous single-valve pumps. They also enabled a reduction in pump diameter and optimized usage of surface equipment. Overall, the double travel valve SRPs produced stable production rates and annual production targets.Miloš Petrović, Bojan Martinović, Milica Ješić, Miroslav Crnogorac. "Double traveling valve increases rod-pump efficiency" in Oil & Gas Journal (2023)
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... reduction to the pole for the area of Macedonia. Geologica Mac- edonica 4:420-534 Dimitrijević MD (1978) Geological mapping. Publishing and informa- tional student center, Belgrade (In Serbian) Dimitrijević MD (1997) Geology of Yugoslavia. Geological Insti-tute - GEMINI, Belgrade, Spec. Publ ...
... (Resimić-Šarić et al. 2006). Overlying ophiolites in the study region are Tithonian limestone overstep sequence and/or Cretaceous sedimentary rocks (Dimitrijević 1997). The western part of the study area corresponds to Kopaonik Unit (KU), also known as Paikon Unit in Greece (Đurić, 2023). The primary ...
... et al. 1965, 1969, 1973; Ivanovski and Rakicević 1966; Hristov et al. 1965, 1973; Karajovanovic and Hristov 1976; Dumurdzanov et al. 1981; Dimitrijević, 1978; Karajovanovik and Hadži- Mitrova 1982) were used to obtain labelled samples (manu- ally annotated i.e., classified instances of ophiolites) ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... nappes, and the Danubian nappes (Dimitrijević 1997). The Supragetic/Getic nappes consists of Neoproterozoic to Paleozoic metamorphic rocks, which are unconformably overlain by Late Carboniferous to Permian continental clastics and Mesozoic rocks (Dimitrijević 1997; lancu et al. 2005a, 2005b) ...
... Janković, 245-252. Banja Luka: The Academy of Sciences and Arts of the Republic of Srpska. Dimitrijević, Miodrag. 1997. Geology of Yugoslavia. Geological Institute GEMINI, Belgrade, 187 pp. Dimitrijević, Miodrag. 2000. Geological Atlas of Serbia, No. 14 (1:2.000.000). Metallogenic map and map ...
... et al. Education: Mile Dimitrijević holds a PhD from the Technical faculty in Bor, University of Belgrade, Serbia (Doctoral studies at the Department of Technological Engineering: 1992- 1998). Research and Professional Experience: Since 2007, Professor Dimitrijević has taught the following ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca
Na izvorištu „Vić bare“ formiranom u aluvijonu Save za vodosnabdevanje Obrenovca u poslednje dve decenije izvedeno je više detaljnih hidrogeoloških istraživanja u cilju utvrđivanja rezervi podzemnih voda i izdvajanja zona sanintarne zaštite. Monitoring podzemnih voda u celoj zoni izvorišta, za potrebe izrade hidrodinamičkog modela, omogućio je i hidrauličku analizu odnosa površinskih voda reke Save i podzemnih voda na izvorištu sa kojeg se trenutno zahvata do 310 l/s vode. U radu su prikazani rezultati korelacione analize, odnosno ispitivanja na ...Dragoljub Bajić, Bojan Hajdin, Dušan Polomčić, Vesna Ristić Vakanjac. "Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca" in XVI Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 28.09.-02.10.2022., Beograd : Rudarsko-geološki fakultet (2022)
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Application of decision trees and random forests to zircon geochemistry
Dina Klimentyeva, Miloš Velojić, Bojan Kostić, Albrecht von Quadt. "Application of decision trees and random forests to zircon geochemistry" in XXII International Congress of the CBGA, Plovdiv, Bulgaria, 7–11 September 2022, Bulgarian Academy of Sciences (2022)
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Geoloski profil planine Avale (severna Šumadija) - uvid u litostratigrafiju i tektonske strukture
Mezozojske formacije Šumadije dele tektonsko-stratigrafsku evoluciju južnijih delova suture jedinica Adrijskog i Evropskog afiniteta, uključujući gornjojursku obdukciju, krednu subdukciju i paleogenu kontinentalnu koliziju. Finalni rezultat dugovremene evolucije u geodinamički složenom ambijentu su komplikovani tektonski i litostratigrafski odnosi različitih mezozojskih formacija suture. Geološki profil kroz planinu Avalu omogućava uvid u skoro potpunu sukcesiju mezozojskih formacija i prostorne pozicije i kinematiku značajnih tektonskih struktura najsevernijih segmenata suture u Šumadiji. U tektonskom kontekstu, mezozojske formacije okoline Beograda najčešće su interpretirane kao deo Istočne ...Marinko Toljić, Bojan Glavaš-Trbić, Maja Maleš, Nikola Ranđelović. "Geoloski profil planine Avale (severna Šumadija) - uvid u litostratigrafiju i tektonske strukture" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022. , Srpsko geološko društvo (2022)
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Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata
Dejan N. Radivojević (2014-12-30)Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika... Park, (eds) Alpine Tectonics, Geological Society, London, v. 45, p. 265–283. Dimitrijević, M. D., 1997, Geology of Yugoslavia, Geoinstitute, Belgrade, v. 2, 187 pp. Dimitrijević, M. N. and M. D. Dimitrijević, 1989, Depozicioni sistemi klastita, Jugoslavenski komitet svjetskih kongresa ...
... kontinuirana metamorfnim serijama Kopaonika (Dimitrijević, 1997). U povlatnom delu jedinice Jadar–Kopaonik nalaze se zapadnovardarski ofioliti, koji su tokom kasne jure – rane krede obdukovani na unutrašnje Dinaride (Dimitrijević, 1997; Karamata, 2006; Pamić, 2002; Schmid ...
... 1986–2001; Janković, u periodu Poglavlje 5 Regionalno‐stratigrafski prikaz 61 1957–1991; Marković, u periodu 1954–1984; Dimitrijević, M. N. & Dimitrijević, M. D., 1989; Kirin et al., 1991; Gajić, 2000–2013; Bogićević, 2000–2013) praćena su mnogim teškoćama. Postoji relativno mali broj ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
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Palinomorfe sa lokaliteta Gostuška reka (Stara planina)
Ivan Rutović (2024)U radu su prikazani rezultati palinološkog istraživanja permsko-trijaskih sedimenata sa lokaliteta Gostuška reka. Palinološki kompleksi su detaljno analizirani, što je omogućilo morfološku, taksonomsku i paleoekološku identifikaciju palinomorfi. Istraživanje je pokazalo prisustvo velikog broja spora i polena golosemenica, dok je polen skrivenosemenica zastupljen u manjem procentu. Na osnovu paleoekoloških analiza, zaključeno je da je tokom formiranja sedimenata na lokalitetu vladala aridna klima, sa povremenim vlažnim fazama koje su omogućavale razvoj močvarne vegetacije.... za geološke i geofizička istraživanja. 4Anđelković J., Krstić B., Bogdanović P., Jadranin D., Milenković P., Milošaković RM., Urošević D., Dimitrijević M., Dolić D., Rakić M. O., Jovanović LJ., Maslarević LJ., Marković B., Divljan M., i Dordević M., 1977: Tumač za listove Pirot i Breznik. Zavod ...
... cal framework: A combined palynological and sedimentological approach. Bulletin de la Societe Geologique de France, Vol. 178, p.p. 173-195. Dimitrijević M., D., 1995: Geologija Jugoslavije, Beograd, str. 129 — 167. Ercegovac, M., D., 1980: Mikropaleontologija – mikropaleobotanika, paleopalinologija ...Ivan Rutović. Palinomorfe sa lokaliteta Gostuška reka (Stara planina), 2024
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Kvantitativno ispitivanje defekata u aluminijumskim pločicama primenom infracrvene termografije
Tomić Ljubiša, Elazar Jovan, Damnjanović Vesna, Milanović Bojan, Kovačević Aleksandar. "Kvantitativno ispitivanje defekata u aluminijumskim pločicama primenom infracrvene termografije" in Zbornik radova 57. konferencije ETRAN MO, Zlatibor, Srbija:Društvo ETRAN (2013): 1-5
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Temperature Contrast Enhancment Techniques in Pulse Video Termography Applications
Tomić Ljubiša, Elazar Jovan, Damnjanović Vesna, Milanović Bojan, Kovačević Aleksandar. "Temperature Contrast Enhancment Techniques in Pulse Video Termography Applications" in Proceedings of 5th International Scientific conference on Defensive Technologies OTEH, Belgrade, Serbia:Militaru Technical Institute (2012): 427-431
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Speleological and hydrogeological factors of urbanization and development of road network on Mt. Zlatibor (Western Serbia)
Milenić Dejan, Milanković Đuro, Doroslovac Nenad, Dončev Bojan, Jovanović Marina. "Speleological and hydrogeological factors of urbanization and development of road network on Mt. Zlatibor (Western Serbia)" in Proceedings of the XII IAEG Congress, Engineering Geology for Society and Territory, Turin, Italy, Turin, Italy:Engineering Geology for Society and Territory (2014): 589-5593
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Quantity testing of the defects in aluminum plates using pulsed thermography
Tomić Ljubiša, Damnjanović Vesna, Dikić Goran, Milanović Bojan, Bonžulović Boban. "Quantity testing of the defects in aluminum plates using pulsed thermography" in Proceedings of OTEH 2014 (6th International Scientific conference on Defensive Technologies), 9-10 October 2014, Belgrade, Serbia: (2014)
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LRMI markup of OER content within the BAEKTEL project
... Olivera Kitanović, Nikola Vulović, Bojan Zlatić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] LRMI markup of OER content within the BAEKTEL project | Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić | The Sixth International ...
... and Geology, olivera.kitanovic@rgf.bg.ac.rs NIKOLA VULOVIĆ University of Belgrade, Faculty of Mining and Geology, nikola.vulovic@rgf.bg.ac.rs BOJAN ZLATIĆ University of Belgrade, Faculty of Mining and Geology, bojan.zlatic@rgf.bg.ac.rs Abstract: This paper outlines the approach to tagging ...Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić. "LRMI markup of OER content within the BAEKTEL project" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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The Domain Modeling of Pulsed Flash Thermography by Finite Element Method
Tomić Lubiša, Damnjanović Vesna, Milanović Bojan, Dikić Goran, Bonžulić Boban. "The Domain Modeling of Pulsed Flash Thermography by Finite Element Method" in Photonica 2015, Belgrade:Institut za nuklearne nauke “Vinča” (2015): 203-204