Претрага
2334 items
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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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Parallel Bidirectionally Pretrained Taggers as Feature Generators
In a setting where multiple automatic annotation approaches coexist and advance separately but none completely solve a specific problem, the key might be in their combination and integration. This paper outlines a scalable architecture for Part-of-Speech tagging using multiple standalone annotation systems as feature generators for a stacked classifier. It also explores automatic resource expansion via dataset augmentation and bidirectional training in order to increase the number of taggers and to maximize the impact of the composite system, which ...Ranka Stanković, Mihailo Škorić, Branislava Šandrih Todorović. "Parallel Bidirectionally Pretrained Taggers as Feature Generators" in Applied Sciences, MDPI AG (2022). https://doi.org/10.3390/app12105028
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Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala
Srđan B. Stanković (2016-09-11)Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...... chemolitotrophic iron- and sulfur- oxidizing bacteria and its role in delineating and sustaining acidophilic mineral-oxidizing consortia, Applied and Environmental Microbiology 76 (2): 461-472 76. Nancucheo I., Johnson D.B. (2011) Significance of microbial communities and interactions in safegurading ...
... of chalcopyrite by pure and mixed cultures of Acidithiobacillus sp. and Leptospirillum feriphilum, International Biodeterioration and Biodegradation 62: 109-115 34. Geller W., Shultze M., Klenimann R., Wolkersdorfer C. (2013) Acidic pit lakes: the legacy of coal and metal surface mines, Springer ...
... Johnson D.B. (2006) Biohydrometallurgy and environment: Intimate and important interplay, Hydrometallurgy 83: 153-166 46. Johnson D.B. (2007) Physiology and biochemistry of acidophilic microorganisms in Gerday C., Glansdorff N. (editors): Physiology and Biochemistry of Extremophiles, ASM Press ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
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Transboundary Karst and Karst Aquifers in West Stara Planina Mts – Characteristics and Problems
Benderev Aleksey, Stevanović Zoran, Mihaylova Boyka, Živanović Vladimir, Kostov Konstantin, Milanović Saša, Shanov Stefan, Jemcov Igor (2016)Benderev Aleksey, Stevanović Zoran, Mihaylova Boyka, Živanović Vladimir, Kostov Konstantin, Milanović Saša, Shanov Stefan, Jemcov Igor. "Transboundary Karst and Karst Aquifers in West Stara Planina Mts – Characteristics and Problems" in Karst without Boundaries. IAH - Selected Papers on Hydrogeology no. 23, Netherland:CRC Press/Balkema (2016): 71-86. https://doi.org/10.1201/b21380-8
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Genesis and circulation of fresh and thermal groundwater flows in same karstic aquifer - Case examples from the Carpathian karst of eastern Serbia
Vasić Ljiljana, Milanović Saša, Stevanović Zoran. "Genesis and circulation of fresh and thermal groundwater flows in same karstic aquifer - Case examples from the Carpathian karst of eastern Serbia" in Book of abstracts of the International Symposium on Hierarchical Flow Systems in Karst Regions KARSTFLOW 2013, Budapest, :IAH (2013): 138
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Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements
Ristić-Vakanjac Vesna, Stevanović Zoran, Čokorilo Ilić Marina. "Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements" in Proceedings of the DIKTAS Conference: “Karst without boundaries”, Trebinje, June 11-15 2014, Trebinje:DIKTAS Project : Grafokomerc (2014): 201-206
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Transboundary karst and karst aquifers in West Stara Planina Mts – characteristics and problems
Benderev Aleksey, Stevanović Zoran, Mihaylova Boyka, Živanović Vladimir, Kostov Konstantin, Milanović Saša, Shanov Stefan, Jemcov Igor (2014)Benderev Aleksey, Stevanović Zoran, Mihaylova Boyka, Živanović Vladimir, Kostov Konstantin, Milanović Saša, Shanov Stefan, Jemcov Igor. "Transboundary karst and karst aquifers in West Stara Planina Mts – characteristics and problems" in Proceedings of the DIKTAS Conference: “Karst without boundaries”, Trebinje, June 11-15 2014, Trebinje:DIKTAS Project : Grafokomerc (2014): 125-130
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Palynological and Petrographical Characteristics of Coal and Host Sediments from the Kovin Deposit (Serbia)
Milivojević Jelena, Životić Dragana, Lazarević Zorica, Bogićević Katarina, Nenadić Draženko. "Palynological and Petrographical Characteristics of Coal and Host Sediments from the Kovin Deposit (Serbia)" in 8th European Palaeobotany-Palynology Conference 6-10 July 2010, Budapest:Hungarian Natural National Museum (2010): 169-170
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Dating intrusion and cooling of Cenozoic granitoids in the Dinarides of Southern Serbia and discussion of the geodynamic setting of Paleocene-Miocene magmatism in the Balkan Peninsula.
Schefer S., Cvetković Vladica, Fügenschuh Bernhard, Kounov A., Ovtcharova M., Schaltegger U., Schmid S. (2010)Schefer S., Cvetković Vladica, Fügenschuh Bernhard, Kounov A., Ovtcharova M., Schaltegger U., Schmid S.. "Dating intrusion and cooling of Cenozoic granitoids in the Dinarides of Southern Serbia and discussion of the geodynamic setting of Paleocene-Miocene magmatism in the Balkan Peninsula." in Geophysical Research Abstracts 12, Vienna, Austria:EGU (2010): 2530-2530
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Heavy metals and trace element accumulation and distribution in the organs of Phragmites australis (Cav.) Trin. eh Steud. 1841, Tisza River, Srebia
Štrbac Snežana, Jovančićević Branimir, Šajnović Aleksandra, Simonović Predrag, Dojčinović B., Grubin Kašanin Milica, Vasić Nebojša, Srdić D. (2012)Štrbac Snežana, Jovančićević Branimir, Šajnović Aleksandra, Simonović Predrag, Dojčinović B., Grubin Kašanin Milica, Vasić Nebojša, Srdić D.. "Heavy metals and trace element accumulation and distribution in the organs of Phragmites australis (Cav.) Trin. eh Steud. 1841, Tisza River, Srebia" in 9th International Symposium on Environmental Geochemistry, Aveiro, Portugal: (2012): 322-322
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Pyrolysis of oil shale and bituminous marlstone kerogens in an open system - influence of temperature on the yield and composition of liquid pyrolysates
Gajica Gordana, Stojanović Ksenija, Jovančićević Branimir, Šajnović Aleksandra, Kostić Aleksandar (2013)Gajica Gordana, Stojanović Ksenija, Jovančićević Branimir, Šajnović Aleksandra, Kostić Aleksandar. "Pyrolysis of oil shale and bituminous marlstone kerogens in an open system - influence of temperature on the yield and composition of liquid pyrolysates" in The Fifteenth Annual Conference YUCOMAT 2013, Herceg Novi, Montenegro, September 2-6, 2013. Book of Abstracts, Herceg Novi, Montenegro:Publisher: Materials Research Society of Serbia (http://www.mrs-serbia.org.rs) (2013): 90-90
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Protholithic age and geochemistry of magmatic rocks from the Serbo-Macedonian massif (south Serbia, southwest Bulgaria and east Macedonia)
Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2012)Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko. "Protholithic age and geochemistry of magmatic rocks from the Serbo-Macedonian massif (south Serbia, southwest Bulgaria and east Macedonia)" in Geophysical Research Abstracts 14 no. EGU2012-5638-1, Max-Planck-Str. 13, 37191 Katlenburg-Lindau, Germany:Copernicus GmbH (2012)
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Preliminary structural and geochemical data from the Serbo-Macedonian Massif (South Serbia, Southwest Bulgaria and Macedonia)
Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran (2011)Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran. "Preliminary structural and geochemical data from the Serbo-Macedonian Massif (South Serbia, Southwest Bulgaria and Macedonia)" in Geophysical Research Abstracts 13 no. EGU2011-9202-1, Max-Planck-Str. 13, 37191 Katlenburg-Lindau, Germany:Copernicus GmbH (2011)
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The mine ore from Prlovi-2 locality preliminary flotation tests
Lazić Predrag, Tomanec Rudolf, Kostović Milena, Miković Branislav. "The mine ore from Prlovi-2 locality preliminary flotation tests" in Proceedings of the XIV Balkan Mineral Processing Congress I, Tuzla, Bosnia and Herzegovina:Faculty of Mining, geology and civil engineering in Tuzla and Faculty of Mining in Prijedor, University of Tuzla (2011): 269-273
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Silver-base metal epithermal vein and listwanite hosted deposit Crnac, Rogozna Mts., Kosovo, part II: A link between magmatic rocks and epithermal mineralization
Borojević-Šoštarić Sibila, Palinkaš Ladislav, Neubauer Franz, Hurai Vratislav, Cvetković Vladica, Roller-Lutz Z, Mandić Magda, Genser Johann (2013)Borojević-Šoštarić Sibila, Palinkaš Ladislav, Neubauer Franz, Hurai Vratislav, Cvetković Vladica, Roller-Lutz Z, Mandić Magda, Genser Johann. "Silver-base metal epithermal vein and listwanite hosted deposit Crnac, Rogozna Mts., Kosovo, part II: A link between magmatic rocks and epithermal mineralization" in Ore Geology Review 50, :Elsevier (2013): 98-117. https://doi.org/10.1016/j.oregeorev.2012.10.00
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Drmno lignite field (Kostolac Basin, Serbia): origin and palaeoenvironmental implications from petrological and organic geochemical studies
Stojanović Ksenija, Životić Dragana, Šajnović Aleksandra, Cvetković Olga, Nytoft Hans Peter, Scheeder Georg (2012)Stojanović Ksenija, Životić Dragana, Šajnović Aleksandra, Cvetković Olga, Nytoft Hans Peter, Scheeder Georg. "Drmno lignite field (Kostolac Basin, Serbia): origin and palaeoenvironmental implications from petrological and organic geochemical studies" in Journal of the Serbian Chemical Society 77 no. 8, Belgrade, Serbia:Serbian Chemical Society (2012): 1109-1127. https://doi.org/10.2298/JSC111126017S
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Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index
Životić Dragana, Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radić Dejan, Obradović Marko, Stojanović Ksenija (2014)Životić Dragana, Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radić Dejan, Obradović Marko, Stojanović Ksenija. "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index" in International Journal of Coal Geology no. 131, Amsterdam, Netherlands:Elsevier BV (2014): 344-362. https://doi.org/10.1016/j.coal.2014.07.004
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Intrinsic groundwater vulnerability assessment by multiparameter methods, a case study of Suva Planina Mountain (SE Serbia)
Branislav Petrović (2020)Branislav Petrović. "Intrinsic groundwater vulnerability assessment by multiparameter methods, a case study of Suva Planina Mountain (SE Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-8825-8
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Occurrences and processes of precious metal enrichment in sulphides assessed by combining LA-ICP-MS, HR-TEM and Fe isotope LA-MC-ICP-MS analyses
Aleksandar Pačevski, Marina Lazarov, Janez Zavašnik. "Occurrences and processes of precious metal enrichment in sulphides assessed by combining LA-ICP-MS, HR-TEM and Fe isotope LA-MC-ICP-MS analyses" in Goldschmidt2021 abstracts, European Association of Geochemistry (2021). https://doi.org/10.7185/gold2021.7689
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Measurement of crack displacement on residential structure due to blast-induced vibrations and daily changes of temperature and relative humidity
Negovanović Milanka, Kričak Lazar, Janković Ivan, Zeković Dario, Ignjatović Snežana. "Measurement of crack displacement on residential structure due to blast-induced vibrations and daily changes of temperature and relative humidity" in Technics Technologies Education Management / TTEM 7 no. 1, Sarajevo,BIH:DRUNPP, Sarajevo (2012): 411-417