Претрага
2215 items
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Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia
Natural gas is considered as the most environmentally acceptable fossil fuel, thus it is an alternative to petroleum derivate, dominantly used in internal combustion engines. Physical properties of a fuel as well as behavior during combustion process are affected by its composition. This article presents analysis of effect of natural gas composition on methane number (MN), conducted for natural gas deposits in Serbia. For empirically determination of MN: California air resources board (CARB) method and Linear and Anstalt für ...Marija Živković, Milica Ivić, Dejan Ivezić, Aleksandar Madžarević. "Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia" in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects (2017). https://doi.org/10.1080/15567036.2017.1403518
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Transformer-Based Composite Language Models for Text Evaluation and Classification
Parallel natural language processing systems were previously successfully tested on the tasks of part-of-speech tagging and authorship attribution through mini-language modeling, for which they achieved significantly better results than independent methods in the cases of seven European languages. The aim of this paper is to present the advantages of using composite language models in the processing and evaluation of texts written in arbitrary highly inflective and morphology-rich natural language, particularly Serbian. A perplexity-based dataset, the main asset for the ...Mihailo Škorić, Miloš Utvić, Ranka Stanković. "Transformer-Based Composite Language Models for Text Evaluation and Classification" in Mathematics, MDPI AG (2023). https://doi.org/10.3390/math11224660
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Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici
Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...... amphibians, reptiles, and birds are common. In most cases, the remains of small vertebrates end up in the cave as prey for predators (birds and mammals), but a smaller number of them also used the cave as a shelter or habitat. Data on the composition of herpetofauna (amphibians and reptiles) are in ...
... flattened, with a very concave anterior margin and medial notch on the posterior margin; the neural crest is low and developed only in the middle part of the neural arches. The vertebra from Mirosava was smaller. The length of the centrum does not exceed 2mm and it is slightly curved on the ventral side ...
... flattened and increase towards the posterior end of the vertebra. The front edge of the neural arches is straight, while the back edge has a wide notch. The ncural crest is damaged, low, and starts at the level of the posterior margin ofthe prezygapophysis. The ventral side ofthe vertebra and partially ...Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković. "Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem. Neum, 21.-23. septembar/rujan 2023, Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies
Abolmasov Biljana, Pejić Marko (2012)Abolmasov Biljana, Pejić Marko. "3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies" in 2nd Project workshop-Monitoring and analysis for disaster mitigation of landslides, debris flow and floods, Book of Abstracts 1 no. 1, Rijeka, Croatia:University of Rijeka and JICA (2012): 81-84
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The Importance and Utilization of Mineral and Thermal Waters in Serbia as a Natural Curative Factor
Dokmanović Petar, Krunić Olivera (2015)Dokmanović Petar, Krunić Olivera. "The Importance and Utilization of Mineral and Thermal Waters in Serbia as a Natural Curative Factor" in Proceedings of the 5th International Congress Biomedicine and Geosciences – Influence of Environment on Human Health, Beograd:AGES (2015): 247-254
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Discussion of „Classroom activities to illustrate concepts of Darcy’s law and hydraulic conductivity“ by Roseanna M.Neupauer and Norman D. Dennis
Brkić Dejan, Mitrović Vladimir (2010)Brkić Dejan, Mitrović Vladimir. "Discussion of „Classroom activities to illustrate concepts of Darcy’s law and hydraulic conductivity“ by Roseanna M.Neupauer and Norman D. Dennis" in Journal of Professional Issues in Engineering Education and Practice 136 no. No.1 (2010): 17-23
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Middle Jurassic terebratulide brachiopods from the Jordan Valley (northwestern Jordan)
U radu je izvršena revizija i detaljan opis srednjojurskih brahiopoda Jordanske doline, a takodje su izdvojeni i novi taksoni. Sa profila Arda iz gornjeg bata (Hamam formacija) i donjeg keloveja (Muganija formacija) odredjeni su novi rod i vrsta Jordanithyris ardainensis. Iz gornjeg bata Hamam formacije (krečnjaci, dolomiti, peščari i laporci) izdvojena je vrsta Ptyctothyris quillyensis. Zajednica koju čine Arabatia bihinensis, Ectyphoria sinaiensis, Ptyctothyris quillyensis, Dorsoplicathyris dorsoplicata i Tubithyris jurayfahiensis potiče iz donjokelovejskih krečnjaka sa proslojcima laporaca Muganija formacije. Brahiopodi ...Howard R. Feldman, Barbara V. Radulović, Vladan J. Radulović, Fayez Ahmadc. "Middle Jurassic terebratulide brachiopods from the Jordan Valley (northwestern Jordan)" in Historical Biology, Taylor & Francis (2021). https://doi.org/10.1080/08912963.2019.1625347
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An overview of the radiation properties of spring water in the rural areas of Central Serbia
Biljana Vučković, Smiljana Marković, Snežana Stević, Sanja Mrazovac Kurilić, Ljiljana Nikolić-Bujanović, Nataša Todorović, Jovana Nikolov, Dragan Radovanović, Danica Srećković Batoćanin, Anja Jokić (2021)Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health,Pollution,Soil Science,Waste Management and Disposal,Water Science and Technology,Environmental Chemistry,Analytical ChemistryBiljana Vučković, Smiljana Marković, Snežana Stević, Sanja Mrazovac Kurilić, Ljiljana Nikolić-Bujanović, Nataša Todorović, Jovana Nikolov, Dragan Radovanović, Danica Srećković Batoćanin, Anja Jokić. "An overview of the radiation properties of spring water in the rural areas of Central Serbia" in International Journal of Environmental Analytical Chemistry, Informa UK Limited (2021). https://doi.org/10.1080/03067319.2021.1890060
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Analysis of the SCI, SCI-E and SSCI Journals in the Fields of Mining Transport, Haulage and Hoisting.
Ristović Ivica, Dašić Predrag, Dašić Jovan. "Analysis of the SCI, SCI-E and SSCI Journals in the Fields of Mining Transport, Haulage and Hoisting." in Applied Mechanics and Materials no. 683, Podbanske, Slovakia:Trans Tech Publications, Switzerland (2014): 78-85. https://doi.org/10.4028/www.scientific.net/AMM
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Uticaj geološke neizvesnosti u razvoju rudarskih projekata
Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...... 14, 31-40. [19] Rozman, L.I. (1998). Measuring and managing the risk in resource and reserves. Ore Reserves and Finance Seminar. AusiMM. Sydney. [20] Snowden D. V., Glacken I. and Noppe M. (2002). Dealing With Demands of Technical Variability and Uncertainty along the Mine Value Chain. Paper presented ...
... its nature and specificity. Uncertainty in mining can come from different sources and affect different aspects of mining projects. Geological uncertainty stands out as one of the dominant factors. Geological uncertainty plays a key role in mining and can significantly affect resource and reserve estimation ...
... economic profitability and risk management. This uncertainty cannot be eliminated, but with the application of adequate standards and laws, it can be reduced. Through this paper, the differences in regional and foreign practice from the aspect of categorization of resources and reserves, as well as the ...Petar Marković, Dejan Stevanović, Mirjana Banković. "Uticaj geološke neizvesnosti u razvoju rudarskih projekata" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...... *Faculty of Mining and Geology, University of Belgrade, Djusina 7, Belgrade; **Institute of general and physical chemistry, Studentski trg 12-16, Belgrade; ***Faculty of Physical chemistry, University of Belgrade, Studentski trg 12-16, Belgrade ‘“***Institute of Chemistry, Technology and Metallurgy, Njegoseva ...
... is sensitive in the presence of CO; and dissolved organic compounds and the time of sparging by N2. In order to check the efficiency this methods, spectrofotometry is used at a wavelenght of 250 nm. ‘This work was funded by the Ministry of Education, Science and Technological Development od the Republic ...
... modifier due to its fertilizing effect and its potential for carbon storage. Quantification of functional groups is interesting because chemical reactivity of biochar can have effect on soil properties. In this researh different samples of biochar are used and one as referent sample. Oxygen surface ...Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanja Srpskog hemijskog društva, Srpsko hemijsko društvo (2015)
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Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment
Groundwater vulnerability assessment methods are continuously being developed and existing methods are very often modified to provide better simulation of natural protection conditions and more objective results. Most frequently used methods are based on calculation of predefined parameters influencing water infiltration and underground flow, which can often lead to bias conclusions related to vulnerability evaluations. Some other methods, like the Time Dependent Model (TDM) are based on an approach, where parametrization is obtained at the final stage of the ...Ocena ranjivosti podzemnih voda, karstne podzemne vode, TDM metoda, delineacija sanitarnih zona, Slovenački karstVladimir Živanović, Nataša Ravbar, Igor Jemcov. "Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)
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Ocena kvaliteta i mogućnost korišćenja podzemnih voda za piće i navodnjavanje u slivu reke Ralje
Analiza mogućnosti korišćenja podzemnih voda za potrebe vodosnabdevanje stanovništva kao i za navodnjavanje vršena je na prostoru sliva reke Ralje. Istražni prostor veličine oko 280 km2 je obuhvatio veći deo sliva reke Ralje koji se administrativno nalaze na području grada Beograda. Podzemne vode su glavni izvor za vodosnabdevanje i navodnjavanje u ovom području. Seoska naselja nemaju urađenu komunalnu infrastrukturu pa predstavljaju značajan faktor za degradaciju kvaliteta podzemnih voda na ovom području. U periodu 2012-2014 godine prikupljeno je 100 uzorka ...Sunčica Ninković, Nebojša Atanacković, Sava Magazinović, Jakov Andrijašević, Mihailo Šević. "Ocena kvaliteta i mogućnost korišćenja podzemnih voda za piće i navodnjavanje u slivu reke Ralje" in XV Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Kopaonik, 14-17.septembar 2016. godine, Univerzitet u Beogradu- Rudarsko-geološki fakultet (2016)
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3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies
Abolmasov Biljana, Pejić Marko (2011)Abolmasov Biljana, Pejić Marko. "3D Terrestrail Laser scanning and GPS Technology for slope stability investigations-case studies" in 2nd project workshop of the monitoring and analyses for disaster mitigation of landslides, debris flow and floods, 15-17, December 2011, Faculty of Civil Engineering University of Rijeka, Rijeka, Croatia 1 no. 1, Rijeka, Croatia:University of Rijeka and JICA (2011)
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
Vladica Cvetković, Kristina Šarić, Dejan Prelević. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region),, Miass: (2017): 52-57
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
Vladica Cvetković, Kristina Šarić, Dejan Prelević. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region),, Miass: (2017): 52-57
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Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes.
В. Цветковић, К. Шарић, Д. Прелевић.. "Serbo-Macedonian Magmatic and Metallogenetic Belt revisited: four examples of the link between magma mixing and mineralization processes." in Magmatism of the Earth and related strategic metal deposits, August 4-9, 2017, Institute of Mineralogy the Ural Branch of RAS in Miass, Ilmen mountains (Chelabinsk Region), (2017): 52-55
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Model of oil and gas pipeline rinsing using the fluid flow
Batalović Veselin, Danilović Dušan, Živković Marija. "Model of oil and gas pipeline rinsing using the fluid flow" in Journal of Applied Engineering Science 9 no. 1, Beograd:Institute for Research and Design in Commerce and Industry (2011): 237-242
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Minor and trace elements in olivines as probes into early igneous and mantle melting processes
Foley Stephen, Prelević Dejan, Rehfeldt Tatijana, Jacob Dorrit. "Minor and trace elements in olivines as probes into early igneous and mantle melting processes" in Earth and Planetary Science Letters 363 no. 1, Amsterdam, Netherlands :Elsevier BV Elsevier BV (2013): 181-191. https://doi.org/10.1016/j.epsl.2012.11.025
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Microstructural, mineralogical and petrographical characteristics of the Medieval ceramics from the Studenica Monastery (UNESCO world heritage site): Implications on the pottery technology and provenance of the raw material.
Šarić Kristina,Bikić Vesna, Erić Suzana. "Microstructural, mineralogical and petrographical characteristics of the Medieval ceramics from the Studenica Monastery (UNESCO world heritage site): Implications on the pottery technology and provenance of the raw material." in Microscopy and Microanalysis 6 no. 24, :Microscopy Society of America (2018): 744-761. https://doi.org/doi:10.1017/S1431927618015349