Претрага
166 items
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Primena hidrodinamičkog modeliranja u rešavanju problema zaštite građevinskih objekata od podzemnih voda na primeru višenamenske sportske hale u Inđiji
Pregrad Pajić, Uroš Urošević, Dušan Polomčić, Dragoljub Bajić . "Primena hidrodinamičkog modeliranja u rešavanju problema zaštite građevinskih objekata od podzemnih voda na primeru višenamenske sportske hale u Inđiji" in Proceedings of the XVI Serbian Symposium on Hydrogeology, Zlatibor, Serbia, 28. September - 02. October, 2022, University of Belgrade - Faculty of mining and geology (2022)
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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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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Development of integrated fuzzy model for mine management optimization | Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan ...
... ENGINEERING SCIENCES Mining engineering DEVELOPMENI OF IN TEGRATED FUZZY MODEL FOR MINE MANAGEMENT OPTIMIZATION Miodrag Čelebić*, Sanja Bajić**, Dragoljub Bajić***", Dejan Stevanović**, Duško Torbica*, Vladimir Malbašić* Received on April 5, 2023 Presented by Ch. Roumenin, Member of BAS, on June ...
... for certain types of mining. operations. Additionally, also based on experience and the physical and mechanical proper- 1414 M. Čelebić, S. Bajić, D. Bajić et al. ties of bauxite, underground working: areas required supporting, in places of well- developed caverns. The overlying rocks are Senonian ...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 (2023)
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Advantages of python programming language in hydrological model development
Milan Tucaković, Dragoljub Bajić, Vesna Ristić Vakanjac, Dušan Polomčić . "Advantages of python programming language in hydrological model development" in Proceedings of the XVIII Serbian Geological Congress, Divčibare, Serbia, 01-04 June 2022, Serbian Geological Society (2022)
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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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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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Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons
U ovom radu sagledana je primena hidrodinamičke analize u okviru odabrane remedijacione metode ,,pumpanja i tretiranja” kontaminiranih podzemnih voda ugljovodonicima, na primeru pretakališta rafinerije nafte u Pančevu. Primenjena hidrodinamička analiza predstavlja pravilan, a sve češće i neophodan pristup u savremenoj hidrogeologiji. Prethodnim hemijskim analizama uzoraka tla i podzemnih voda na istražno-osmatračkim objektima detektovano je zagađenje produktima nafte. Novoizvedena istraživanja obuhvatila su izvođenje 12 pijezometara različitih dubina, geoelektrično sondiranje tla, ,,in situ” merenja prisutnog kontaminanta, izdvojenog kao hidrofobna faza LNAPL, ...Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić. "Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2018). https://doi.org/10.5937/tehnika1706825P
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Određivanje prostorne distribucije vrednosti hidrauličkih parametara izdani: primer površinskog kopa „Radljevo“
Najčešće se kalibracija hidrodinamičkih modela vršila manuelno - „probanjem“ sa različitim vrednostima hidrauličkih parametara i hidrauličkih karakteristika graničnih uslova. Ovakav način rada zahteva veliko znanje i iskustvo eksperta, pri čemu ostaje otvoreno pitanje da li dobijeno rešenje ima optimalan skup parametara. Primenom optimizacione metode, koja se zasniva na Gauss-Marquardt-Levenberg-ovom algoritmu, i PEST softvera, ...Dragoljub Bajić, Dušan Polomčić, Jelena Ratković, Predrag Pajić. "Određivanje prostorne distribucije vrednosti hidrauličkih parametara izdani: primer površinskog kopa „Radljevo“" in 9. Međunarodni simpozijum o upravljanju podzemnim resursima, Zaječar 2019., Megatrend Univerzitet, Fakultet za menadžment, Zaječar (2019)
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Hydrodynamic analysis of radial collector well ageing at Belgrade well field
The origin and effect of hydraulic resistances on the rate of ageing of radial collector wells are identified through numerical hydrodynamic analysis. The research includes hydrodynamic modeling of one such well with new laterals at Belgrade well field. The performance of the laterals is aggravated by rapid ageing. The change in the hydraulic parameters of the laterals during the first decade of operation is analyzed through simulations of the groundwater regime with realistically specified geometries and hydraulics of the ...Đorđije Božović, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković. "Hydrodynamic analysis of radial collector well ageing at Belgrade well field" in Journal of Hydrology, Elsevier BV (2019). https://doi.org/10.1016/j.jhydrol.2019.124463
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Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields
Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić. "Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields" in Geologia Croatica, Hrvatski geološki institut (2022). https://doi.org/10.4154/gc.2022.14
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Bilans izdani u okviru površinskog kopa „Buvač“ (Republika Srpska)
Bajić Dragoljub, Polomčić Dušan, Ristić-Vakanjac Vesna, Čokorilo Marina. "Bilans izdani u okviru površinskog kopa „Buvač“ (Republika Srpska)" in Zapisnici Srpskog Geološkog Društva za 2012. godinu, Beograd:Srpsko geološko društvo (2013): 69-80
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Groundwater balance and its components at Tamnava West field open-pit coal mine
Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Čokorilo Ilić Marina. "Groundwater balance and its components at Tamnava West field open-pit coal mine" in Proceedings of the XV Serbian Symposium on Hydrogeology, Belgrade:University of Belgrade - Faculty of mining and geology (2016): 483-487
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Bilans podzemnih voda na području površinskog kopa „Tamnava-Zapadno polje“
Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Marina Čokorilo Ilić. "Bilans podzemnih voda na području površinskog kopa „Tamnava-Zapadno polje“" in Zbornik radova XV Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Kopaonik, 14-17.septembar 2016. godine, Rudarsko-geološki fakultet (2016)
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Quantifying the impact of Tamnava - West field drainage system of the surface pit on groundwater regime of Kalenić regional landfill
Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Tomislav Šubaranović. "Quantifying the impact of Tamnava - West field drainage system of the surface pit on groundwater regime of Kalenić regional landfill " in Proceedings of the VIII Balkan Mining Congress, Belgrade, Serbia, 28. - 30. September 2022, Belgrade : Mining Institute Belgrade (2022)
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Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024
Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek. "Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024" in Podzemni radovi, Beograd, jun 2024, Centre for Evaluation in Education and Science (CEON/CEES) (2024). https://doi.org/10.5937/podrad2444071B
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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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Automatska kalibracija hidrodinamičkih modela pomoću programa PEST
Polomčić Dušan, Bajić Dragoljub, Ristić-Vakanjac Vesna, Čokorilo Ilić Marina. "Automatska kalibracija hidrodinamičkih modela pomoću programa PEST" in Zapisnici Srpskog geološkog društva, Belgrade:Serbian Geological Society (2014): 13-27
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Modflow na raskrscu
Polomčić Dušan, Bajić Dragoljub, Ristić-Vakanjac Vesna, Čokorilo Ilić Marina. "Modflow na raskrscu" in Zapisnici Srpskog geološkog društva, Beograd, Srbija:Srpsko geološko društvo (2014): 173-186
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Хидродинамичке карактеристике изворишта подземних вода ,,Кључ“ у Пожаревцу
vodosnabdevanje, step-test, hidraulički parametri bunara, filtracioni parametri, maksimalno dozvoljeni kapaciteti bunaraМилица Степановић, Драгољуб Бајић, Александар Аврамовић, Милан Туцаковић, Стефан Шикман. "Хидродинамичке карактеристике изворишта подземних вода ,,Кључ“ у Пожаревцу" in Техника, Савез инжењера и техничара (2021). https://doi.org/10.5937/tehnika2105584S
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Kvalitativne karakteristike podzemnih voda izvorišta „Ključ“ u Požarevcu
Milica Stepanović, Dragoljub Bajić, Dušan Polomčić, Aleksanadar Avramović, Branko Mijatović. "Kvalitativne karakteristike podzemnih voda izvorišta „Ključ“ u Požarevcu " in Proceedings of the XVI Serbian Symposium on Hydrogeology, Zlatibor, Serbia, 28. September - 02. October, 2022, University of Belgrade - Faculty of mining and geology (2022)