Претрага
196 items
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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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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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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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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 the autoregressive model, grey model and biplot method to groundwater sources
Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić. "Application of the autoregressive model, grey model and biplot method to groundwater sources" in Proceedings of the XVIII Serbian Geological Congress, Divčibare, Serbia, 01-04 June 2022, Serbian Geological Society (2022)
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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 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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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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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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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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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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Asseings prospect of groundwater source „Vić Bare“ for Obrenovac’s water supply
Hajdin Bojan, Polomčić Dušan, Stevanović Zoran, Bajić Dragoljub, Hajdin Katarina. "Asseings prospect of groundwater source „Vić Bare“ for Obrenovac’s water supply" in Proceedings of the XIV Serbian Symposium on Hydrogeology, Zlatibor, Serbia, 17-20 May, 2012, Belgrade:University of Belgrade - Faculty of mining and geology (2011): 107-111
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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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Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia
Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin. "Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia" in Hydrogeology Journal, Berlin, Heidelberg : Springer, International Association of Hydrogeologists (2013). https://doi.org/10.1007/s10040-013-1025-9
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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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Prognoza efekata klimatskih promena na režim karstne izdani priomenom hidrodinamičkog modela - primer karstnog masiva Stare planine sa Pirotskom kotlinom
Polomčić Dušan, Ristić Vakanjac Vesna, Bajić Dragoljub, Čokorilo Ilić Marina. "Prognoza efekata klimatskih promena na režim karstne izdani priomenom hidrodinamičkog modela - primer karstnog masiva Stare planine sa Pirotskom kotlinom" in Stevanović Zoran, Beograd:Srpsko geološko društvo (2015): 1-14