Претрага
1328 items
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Hydrodynamic approach in the process of prevention of groundwater contamination in the case of potential faecal contamination of Kladovo water source „Carina“
Pajić Predrag, Polomčić Dušan, Čalenić Aleksandar, Bajić Dragoljub. "Hydrodynamic approach in the process of prevention of groundwater contamination in the case of potential faecal contamination of Kladovo water source „Carina“" in Proceedings of the XVII Serbian Geological Congress, Belgrade:Serbian Geological Society (2018): 484-489
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Condition of the agricultural land use in the Danube riverside area with the aspect of their protection from high groundwater levels
Pajić Predrag, Čalenić Aleksandar, Polomčić Dušan, Bajić Dragoljub. "Condition of the agricultural land use in the Danube riverside area with the aspect of their protection from high groundwater levels" in Proceedings of the 8th International Symposium on Natural Resources Management, Zaječar:John Naisbitt University, Faculty of Management (2018): 121-127
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Characteristic groundwater level regimes in the capture zones of radial collector wells and importance of identification (case study of Belgrade Groundwater Source)
Božovć Đorđije, Polomčić Dušan, Bajić Dragoljub. "Characteristic groundwater level regimes in the capture zones of radial collector wells and importance of identification (case study of Belgrade Groundwater Source)" in Geološki anali Balkanskoga poluostrva no. 77, Belgrade:University of Belgrade - Faculty of mining and geology (2016): 43-53. https://doi.org/10.2298/GABP1677043B
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Reprezentativnost hidrodinamičkih modela – prikaz savremenih tehnika u izradi i etaloniranju modela
MODFLOW, nestruktuirane mreže, PEST, pojedinačnog razlaganja parametara, metoda Null Space Monte CarloDušan Polomčić, Dragoljub Bajić, Jelena Ratković. "Reprezentativnost hidrodinamičkih modela – prikaz savremenih tehnika u izradi i etaloniranju modela" 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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Primena fuzzy optimizacije u hidrodinamičkoj analizi
znanje eksperta, optimizacija, trougaoni fuzzy brojevi, upravljanje podzemnim vodama, fuzzy logika, hidrodinamički modelDragoljub Bajić, Dušan Polomčić, Jelena Ratković, Predrag Pajić. "Primena fuzzy optimizacije u hidrodinamičkoj analizi" in XVII Kongres geologa Srbije (Zbornik radova XVII srpskog geološkog kongresa), Vrnjačka Banja, 17-20.05.2018., Srpsko geološko društvo (2018)
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Šematizacija hidrograma i nivograma radnog nivoa kod bunara sa horizontalnim drenovima
Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Đorđije Božović. "Šematizacija hidrograma i nivograma radnog nivoa kod bunara sa horizontalnim drenovima" 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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Metodologija izrade 3D konceptualnog hidrogeološkog modela za potrebe hidrodinamičkog modeliranja bunara sa horizontalnim drenovima
Đorđije Božović, Dušan Polomčić, Dragoljub Bajić . "Metodologija izrade 3D konceptualnog hidrogeološkog modela za potrebe hidrodinamičkog modeliranja bunara sa horizontalnim drenovima " 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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Simulation of the operating regime and determination of the radius of influence of the groundwater sources „Parmenac“ and „Beljina“ (Čačak)
Polomčić Dušan, Bajić Dragoljub, Močević Jelena, Špadijer Slavko, Drašković Dejan. "Simulation of the operating regime and determination of the radius of influence of the groundwater sources „Parmenac“ and „Beljina“ (Čačak)" in Proceedings of the XV Serbian Symposium on Hydrogeology, Belgrade:University of Belgrade - Faculty of mining and geology (2016): 141-146
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Процена угрожености подземних вода применом GOD методе: случај изворишта за водоснабдевање Сопота
Милица Степановић, Драгољуб Бајић, Душан Поломчић, Стефан Шикман, Александар Новитовић . "Процена угрожености подземних вода применом GOD методе: случај изворишта за водоснабдевање Сопота" in Водопривреда, Београд : Српско друштво за наводњавање и одводњавање (2021)
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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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Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points
Milica Stepanović, Dragoljub Bajić, Dušan Polomčić. "Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points" in Comptes rendus de l'Académie Bulgare des Sciences, "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences (2021). https://doi.org/10.7546/CRABS.2021.08.09
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The impact of the Covid-19 pandemic on the economy, water resources and sustainable development
Milan Tucaković, Dragoljub Bajić, Dušan Polomčić. "The impact of the Covid-19 pandemic on the economy, water resources and sustainable development" in The impact of the Covid-19 pandemic on the economy, resources and sustainable development, Megatrend univerzitet Beograd, Fakultet za menadžment Zaječar (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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Simulation of groundwater regime and quantification of groundwater balance by means of hydrodynamic analysis: Case of open-cast mine 'Jakovačka Kumša'
Hidrodinamička analiza, kao metodološki postupak, korišćena je za simulaciju režima i kvantifikaciju bilansa podzemnih voda na širem području Površinskog kopa „Jakovačka Kumša“. Istražni prostor obuhvata i deo beogradskog izvorišta podzemnih voda koje se nalazi u neposrednoj blizini površinskog kopa, u priobalju reke Save. Na površinskom kopu se vrši eksploatacija peska, koji se koristi kao građevinski materijal. Analizom i sintezom podataka koji se odnose na geološke i hidrogeološke ka-rakteristike područja, u radu je prikazan trodimenzionalni hidrogeološki model istražnog područja. Prevođenje ...hidrogeološki model, hidrodinamički model, izvorište podzemnih voda, numerička metoda konačnih razlika, ModflowDušan Polomčić, Dragoljub Bajić, Jelena Ratković, Đorđije Božović, Predrag Pajić. "Simulation of groundwater regime and quantification of groundwater balance by means of hydrodynamic analysis: Case of open-cast mine 'Jakovačka Kumša'" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1901056P
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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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The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia
Праћење и анализа концентрација токсичних метала (олово и кадмијум) у земљишту и усевима указују на то да пољопривредно земљиште у Србији углавном није загађено, а квалитет земљишта је природно добар. Због тога су таква земљишта погодна за органску пољопривреду. Сви уочени случајеви контаминације токсичним металима су само локалне природе, а резултат су ђубрива и пестицида, комуналног отпада, издувних гасова, оближњих производних објеката, топионица, рудника, јаловишта итд. Локације овог типа морају бити редовно прати и процењује статус земљишта и усева. ...Ana Koprivica, Čedomir Beljić, Boris Vakanjac, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia" in Minerals, MDPI AG (2018). https://doi.org/10.3390/min8040131
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Applying the VIKOR method to select the optimal underground mining technology
Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Vesna Ristić Vakanjac. "Applying the VIKOR method to select the optimal underground mining technology" in Comptes rendus de l'Académie Bulgare des Sciences (2023)