Претрага
245 items
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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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Mogućnost korelacije zatezne čvrstoće i dinamičkih svojstava belog venčačkog mermera
Zatezna čvrstoća se koristi pri dimenzionisanju komora (raspona između stubova), određivanju rezne sile na bagerima, izračunavanja efekata miniranja itd. Iskustvo je pokazalo da zatezna čvrstoća stena predstavlja 10-15% jednoosne č vrstoće na pritisak. Za preciznije određivane ovog parametra pristupa se laboratorijskim ispitivanjima, direktim ili indireknim metodama. U ovom radu su prikazana ispitivanja zatezne čvrstoće indirektnom metodom na uzorcima belog meremera ležišta Venčac. Pre utrđivanja zatezne čvrstoće, na svakom probnom telu izvršeno je merenje brzine longitudinalnih elastičnih talasa. Na osnovu ...Jelena Majstorović, Vladimir Čebašek, Veljko Rupar, Nebojša Gojković. "Mogućnost korelacije zatezne čvrstoće i dinamičkih svojstava belog venčačkog mermera" in Inženjerski problemi u mekim stenama - Druga konferencija regionalnih geotehničkih društav, Specijalizovana konferencija ISRM-aa, Друштво за геотехника на Македонија (2022)
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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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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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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... monografija nacionalnog značaja. Др ЗОРИЦА ЛАЗАРЕВИЋ, ванредни професор МИХАЈЛОВИЋ Ђ., ЛАЗАРЕВИЋ З., 1995: Горњобаденска флора Лешћа (околина Београда). Геолошки анали Балканскога полуострва, 59: 165–175, Београд МИХАЈЛОВИЋ Ђ., ЛАЗАРЕВИЋ З., 1996: Понтска флора из колубарског угљеног басена ...
... анали Балканскога полуострва, 60(1): 231–246, Београд МИХАЈЛОВИЋ Ђ., ЛАЗАРЕВИЋ З., 1998: Понтска флора из костолачког угљеног басена (Србија). Геолошки анали Балканскога полуострва, 62: 133–153, Београд MIHAJLOVIĆ Đ., LAZAREVIĆ Z., 2004: Fossil Flora from Late Neogene of Bitola Area, FYR Macedonia ...
... 283–303, Beograd. NENADIĆ D., BOGIĆEVIĆ K., LAZAREVIĆ Z., MILIVOJEVIĆ J., 2010: Lower and Middle Pleistocene sediments Of Eastern Srem (northern Serbia) – Paleo- geographical Reconstruction. Bulletin of the Natural History Museum, 3, 7–25. LAZAREVIĆ Z., MILIVOJEVIĆ J., 2010: Early Miocene flora ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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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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New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)
... Serbia) Jelena Stefanović, Bojana Džinić, Giovanna Della Porta, Dejan Radivojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia) | Jelena Stefanović ...Jelena Stefanović, Bojana Džinić, Giovanna Della Porta, Dejan Radivojević. "New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)" in 90° Congresso della Società Geologica Italiana, Trieste, 14-16 septembar, 2021, Società Geologica Italiana (2021)
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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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A contribution to the understanding of the discharge dynamics and water balance of the karst spring Gornji Dušnik (Suva Planina)
A sufficiently long time-series of daily discharges is needed to assess the discharge dynamics and calculate the water balance equation parameters of a spring (river source). The paper assumes that a catchment is gauged if a time-series of observations of at least 30 years is available, which is a rare case in Serbia. One-year monitoring is often set up to verify the reserves of a water source or spring intended for capture. Monitoring ceases after the final report is ...Aleksandar Tanasković, Vesna Ristić Vakanjac, Dušan Polomčić, Jelena Ratković. "A contribution to the understanding of the discharge dynamics and water balance of the karst spring Gornji Dušnik (Suva Planina)" in National Conference with International Participation “GEOSCIENCES 2023”, Review of the Bulgarian Geological Society, Sofia : Bulgarian Geological Society (2023)
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The status of groundwater protection in Serbia and the implications of new regulations
Vujasinović Slobodan, Stevanović Zoran, Matić Ivan, Zarić Jelena, Milanović Saša. "The status of groundwater protection in Serbia and the implications of new regulations" in Book of abstracts of 39 IAH Congress, Niagara Falls, Niagara Falls:International Association of Hydrogeologists Canadian National Chapter (2012)
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The Carpatho-Balkan-Dinaric Region (Recent Landform Evolution in Serbia)
Pavlović Radmila, Ćalić Jelena, Đurović Predrag, Trivić Branislav, Jemcov Igor. "The Carpatho-Balkan-Dinaric Region (Recent Landform Evolution in Serbia)" in Recent Landform Evolution -Springer Geography, Monography 13, Amsterdam, Netherlands:Springer Netherlands (2012): 345-375. https://doi.org/10.1007/978-94-007-2448-8_13
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Recent Landform Evolution in Serbia
Pavlović Radmila, Ćalić Jelena, Đurović Predrag, Trivić Branislav, Jemcov Igor. "Recent Landform Evolution in Serbia" in Recent Landform Evolution - The Carpatho-Balkan-Dinaric Region, :Springer (2012). https://doi.org/DOI:10.1007/978-94-007-2448-8_
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Održivо uprаvlјаnjе kаmеnim аgrеgаtimа – mеđunаrоdni prојеkаt SАRМа
Simić Vlаdimir, Živаnоvić Јelena, Bеlјić Čеdоmir, Živоtić Drаgаnа, Rаdivојеvić Мaša. "Održivо uprаvlјаnjе kаmеnim аgrеgаtimа – mеđunаrоdni prојеkаt SАRМа" in [Zbornik radova] = [Proceedings] / IX Međunarodna konferencija o površinskoj eksploataciji - OMC 2010, Vrnjačka Banja, 20-23. oktobar 2010. = IX International Opencast Mining Conference - OMC 2010, Vrnjačka Banja, 20-23 October 2010, Beograd:Jugoslovenski komitet za površinsku eksploataciju (2010): 280-285
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Petrographic study of Beočin zeolite tuff
Simić Vladimir, Andrić Nevena, Cvetković Vladica, Vuković Nikola, Živanović Jelena. "Petrographic study of Beočin zeolite tuff" in Proceedings of the 5th Serbian-Croatian-Slovenian Symposium on Zeolites no. 5, Belgrade:Serbian Zeolite Association (SZA): Faculty of Physical Cehmistry, 2013 (Faculty of Technology and Metallurgy) (2013): 104-107
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Visokoprovodna d-Bi2O3 faza dopirana vanadijumom
Dapčević Aleksandra, Poleti Dejan, Karanović Ljiljana, Rogan Jelena, Radojković Aleksandar. "Visokoprovodna d-Bi2O3 faza dopirana vanadijumom" in XL Savetovanje Srpskog hemijskog društva, Beograd, Srbija:Srpsko hemijsko društvo (2012): 64-64
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The impact of sand open pit „Jakovačka Kumša“ on groundwater in a part of Belgrade source
Matić Ivan, Polomčić Dušan, Vujasinović Slobodan, Marić Nenad, Zarić Jelena. "The impact of sand open pit „Jakovačka Kumša“ on groundwater in a part of Belgrade source" in Proceedings / IWA Specialist Groundwater Conference, 08-10 September 2011, Beograd:Institute for the Development of Water Resources Jaroslav Černi (2011): 397-403
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Primena GIS-a u upravljanju i administraciji istražnih i eksploatacionih odobrenja
Stanković Ranka, Kitanović Olivera, Branislav Trivić, Blagojević Branislav, Prodanović Jelena (2010)Stanković Ranka, Kitanović Olivera, Branislav Trivić, Blagojević Branislav, Prodanović Jelena. "Primena GIS-a u upravljanju i administraciji istražnih i eksploatacionih odobrenja" in 3rd International Symposium ENERGY MINING 2010, 08 - 11. September 2010., Banja Junakovic, Apatin, Serbia, :Univerzitet u Beogradu - Rudarsko-geološki fakultet (2010): 494-502
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Permanent geodetic monitoring of the Umka Landslide using GNSS techonology and GeoMoss system
Erić Verica, Božić Branko, Pejić Marko, Abolmasov Biljana, Pandžić Jelena. "Permanent geodetic monitoring of the Umka Landslide using GNSS techonology and GeoMoss system" in Abstract book - 2nd Regional Symposium on Landslides in the Adriatic-Balkan Region - 2nd ReSyLAB 2015 1 no. 1, Beograd, Srbija:University of Belgrade, Faculty of Mining and Geology, Belgrade (2015): 39-39