Претрага
227 items
-
Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... Sheath Integrity Control During Well Life. TTEM - Journal of Society For Development of Teaching and Business Processes in New Net Environment in B & H, Vol. 5, No. 3, pp. 450–454. ČEBAŠEK V., BOŠKOVIĆ Z., MITROVIĆ V., GOJKOVIĆ N., 2010: Tangential Stress in the Well in the Casing-Cement Stone-Formation ...
... FILIPOVIĆ N., 2011: Numerical Model Assessment of Radial-Well Aging. Journal of computing in civil engineering, 25 (1), 43–49. DIMKIĆ M., PUŠIĆ M., VIDOVIĆ D., PETKOVIĆ A., BORELI-ZDRAVKOVIĆ DJ., 2011: Several natural indicators of radial well ageing at the Belgrade Groundwater Source, part 1. Water ...
... Sheath Integrity Control During Well Life. TTEM - Journal of Society For Development of Teaching and Business Processes in New Net Environment in B&H, Vol. 5, No. 3, 450–454. ČEBAŠEK V., BOŠKOVIĆ Z., MITROVIĆ V., GOJKOVIĆ N., 2010: Tangential Stress In The Well In The Casing-Cement Stone-Formation ...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
-
Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...... categorization. Mladenović and associates [18] use the same resources for document-level sen- timent polarity classification using maximum entropy modeling. Zečević and Vujičić-Stanković [27] apply various language-identification tools to distinguish Serbian among other closely related languages ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Metadata of the chapter that will be visualized in SpringerLink ...
... needs and retrieval results. Document surrogates typically consist of metadata about the document, such as title, abstract, author and the like, as well as of keywords which denote doc- ument content. Surrogates can also contain an abstract and/or a snippet, a relevant text fragment. The content of a ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
-
Analiza primenjenih metoda za transport parafinske nafte
Dunja Milojević (2024)Sadržaj parafina u nafti ima dominantan uticaj na svojstva parafinskih nafti. Taloženje parafina, odnosno taloženje čvrstih čestica parafinskog voska, predstavlja ozbiljan globalni problem tokom proizvodnje i transporta sirove nafte. Samo taloženje voska zavisi od termodinamičkih faktora, poput temperature, pritiska i sastava nafte. Transport nafte cevovodima je uobičajeni proces transporta u naftnoj industriji. Kada prilikom cevovodnog transporta parafinske sirove nafte, dođe do prekida protoka i hlađenja nafte ispod temperature stinjavanja, parafini će kristalisati, pri čemu će doći do, geliranja celokupne transportovane ...... nafte. Časopis Saveza hemijskih inženjera Srbije "Hemijska industrija", 60(1-2), str. 10-14. 18.Stubsjden, M. (2013). Analytical and Numerical Modeling of Paraffin Wax in Pipelines. Norway: Norwegian University of Science and Technology. 19. Tolmač, J. (2020). Opfimizacija termičkih i hidrauličkih ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Univerzitet u Beogradu Rudarsko - geološki fakultet Završni ...Dunja Milojević. Analiza primenjenih metoda za transport parafinske nafte, 2024
-
Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera
Aleksandra B. Kolarski (2016-08-25)Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojave... poremećaja, zabeležene sistemima AbsPAL (Absolute Phase & Amplitude Logger) i AWESOME (Atmospheric Weather Electromagnetic Sistem for Observation Modeling and Education) u Beogradu, iskorišćene su za dijagnostiku niske jonosfere u regularnim i neregularnim solarno-terestričkim uslovima. Rezultati tih ...
... HALESIS projet: Hight Altitude Luminous Events Studied by Infrared Spectro-imagery. NASA Astrophysics Data System (ADS). Cummer, S. A. (2000). Modeling electromagnetic propagation in the earth-ionosphere waveguide. IEEE Transactions on Antennas and Propagation, 48(9), pp. 1420–1429. Cummer, S ...
... doi:10.1002/jgra.50460, Pasko, V. P. (2003). Electric jets. Nature, 423, pp. 927–929. Pasko, V. P., George, J. J. (2001). Three-dimensional modeling of blue jets and blue starters. EOS Trans. AGU - Fall Meet. Suppl., 82(47). Pasko, V. P., Inan, U. S., Bell, T. F., Reising, S. C. (1998). Mechanism ...Aleksandra B. Kolarski. "Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-25)
-
Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive
Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2011)... izvorištima opštine Kikinda. Rudarsko-geološki fakultet, Beograd 13. Milanović S., Stevanović Z., Vasić Lj., Ristić V., 2011: Monitoring and physical modeling of karst system as a base for its evaluation and utilization – A case study from eastern Serbia, Proceedings of 9th conference on Limestone hydrogeology ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs UNIVERZITET U BEOG�DU RUDARSKO GEOLOŠKI FAKULTET DEPARTMAN ...Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić. "Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive" in Naših 40 godina, Beograd : Rudarsko-geološki fakultet (2011): 49-77
-
Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
-
A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
-
Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
-
Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... anali balkanskoga poluostrva, 49, 11—160. Duretz, T., Agard, P., Yamato, P., Ducassou, C., Burov, E. B., & Gerya, T. V. (2016). Thermo-mechanical modeling of the obduction process based on the Oman ophiolite case. Gondwana Research, 32, 1—10. Ercegovac, M. (1975). Microspores of the older Paleozoic ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Swiss Journal of Geosciences |+ | https://doi.org/10.100 ...
... of ophiolite obduction has been improved by contributions from analogue (Agard et al. 2014) and numerical (Duretz et al. 2016) experiments, as well as integrated studies (Jolivet et al. 2015). Less is known about the structural evolution of the continental lower plate in obduction systems. How ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
-
Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... Gourich B., Chafi M., Stiriba Y., Vial Ch., Drogui P., Naja J., (2017). „Electrocoagulation process in water treatment: A review of electrocoagulation modeling approaches“, Desalination 404 [3] Segura S.G., Eibanda M. M. S.G., Vieira de Meloa J., Martínez-Huitlea C. A. (2017). „Electrocoagulation and ...
... marine sediment. Environmental Science & Technology 43, 3815–3823. 12. Cho, Y.M., Werner, D., Choi, Y., Luthy, R.G., 2012. Long-term monitoring and modeling of the mass transfer of polychlorinated biphenyls in sediment following pilot-scale in-situ amendment with activated carbon, Journal of Contaminant ...
... California, USA. Environmental Toxicology and Chemistry 26, 2143–2150. 18. Choi, Y., Cho, Y.M., Gala, W.R., Luthy, R.G., 2013, Measurement and modeling of activated carbon performance for the sequestration of parent-and alkylated-polycyclic aromatic hydrocarbons in petroleum-impacted sediments. ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)
-
Optimizacija i planiranje površinskih kopova stohastičkim modelima
Dejan R. Stevanović (2015-05-29)Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.... 2004, Resource Estimation, Snowden Mining Industry Consultants Cowan E.J, Beatson R.K, Ross H.J., Fright W.R, 2003, Practical Implicit Geological Modeling, 5th International Mining and Geology Conference, Bedingo, Victoria, The Australasian Institute of Mining and Metallurgy, str. 89-99. Černý, V., ...
... Uncertainty based production scheduling in open pit mining, SME Transactions, vol. 316 Dimitrakopoulos, R, 1998, Conditional simulation algorithms for modeling orebody uncertainty in open-pit optimization. International Journal of Surface Mining Reclamation and Environment, Vol. 2, No. 4, str. 173–179. ...
... Diffusion Journel A, 1989, Fundamentals of geostatistics in five lessons. Short course in geology, vol. 8., American Geophysical Union. Journel A, 1996, Modeling uncertainty and spatial dependence: Stochastic imaging, International Journal of Geographical Information Systems, Vol. 10, str. 517-522. K. Rezaie ...Dejan R. Stevanović. "Optimizacija i planiranje površinskih kopova stohastičkim modelima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-05-29)
-
Optimizacija i planiranje površinskih kopova stohastičkim modelima
Dejan R. Stevanović (2015-05-29)Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.... 2004, Resource Estimation, Snowden Mining Industry Consultants Cowan E.J, Beatson R.K, Ross H.J., Fright W.R, 2003, Practical Implicit Geological Modeling, 5th International Mining and Geology Conference, Bedingo, Victoria, The Australasian Institute of Mining and Metallurgy, str. 89-99. Černý, V., ...
... Uncertainty based production scheduling in open pit mining, SME Transactions, vol. 316 Dimitrakopoulos, R, 1998, Conditional simulation algorithms for modeling orebody uncertainty in open-pit optimization. International Journal of Surface Mining Reclamation and Environment, Vol. 2, No. 4, str. 173–179. ...
... Diffusion Journel A, 1989, Fundamentals of geostatistics in five lessons. Short course in geology, vol. 8., American Geophysical Union. Journel A, 1996, Modeling uncertainty and spatial dependence: Stochastic imaging, International Journal of Geographical Information Systems, Vol. 10, str. 517-522. K. Rezaie ...Dejan R. Stevanović. "Optimizacija i planiranje površinskih kopova stohastičkim modelima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-05-29)
-
Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... distribution maps of microelements concentration in mineral waters of Serbia, as well as by constructing statistical diagrams, pattern of spatial distribution of analyzed microelements have been perceived, as well as the extent of variation of their concentrations. The possibility of everyday human ...
... 10.0), spatial distribution of microelements in mineral waters of Serbia has been studied (software package Esri ArcGIS 9.3), and hydrochemical modeling has been applied on a certain number of mineral water samples (software package USGS PHREEQC 2.18). The use of factor analysis allowed grouping ...
... microelements concentrations to the limits recommended by domestic and foreign drinking water regulations and guidelines. Applying hydrochemical modeling on chosen mineral water samples the presence of the most probable ion species of the analyzed microelements has been calculated, closely defining ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
-
Ontološki model upravljanja rizikom u rudarstvu
Olivera Kitanović (2021)Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika... implementation of information extraction algorithms for improving the ontology, as well as an appropriate software solution. The development of the model includes a significant expansion of the mining corpus, as well as the creation of a terminological database, realized using methods of computational ...
... methods for evaluation and interpretation of the obtained results. Information technology tools were used for model development: UML for concept modeling, OWL for ontology development, SWRL rules for inference mechanism, query languages CQL for corpus and SPARQL for ontology. The research results ...
... (Evert 2005). Tehnikama obrade prirodnog jezika su ekstrahovani kandidati za sadržaj ontologije, pronalaženjem veza između 1 UML (engl. Unified Modeling Language) je standardni jezik za vizuelno prikazivanje objektnog modela 5 imeničkih fraza iz domena rudarstva i njihovih kolokacija. Takođe ...Olivera Kitanović. Ontološki model upravljanja rizikom u rudarstvu, Beograd : [O. Kitanović], 2021
-
Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa
Mirjana V. Banković (2018-07-13)Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta... planiranja koje se koriste u radovima vezano za površinske kopove uglja. Modeli su kreirani primenom jedinstvenog jezika za modeliranje (UML eng. Unified Modeling Language). UML (Rumbaugh et al., 2004) je široko primenjen grafički jezik modeliranja koji omogućava standardizovanu osnovu za kreiranje i slikovito ...
... Surface coal mining methods in Australia. In: ONARGAN, P. T. (ed.) Mining Methods. InTech. Rumbaugh, J., Jacobson, I., Booch, G., 2004, Unified modeling language reference manual, the, Pearson Higher Education. Sabour, S., Wood, G., 2009, Modelling financial risk in open pit mine projects: implications ...
... Surface strip coal mining handbook. South African Colliery Managers Association. Thorley, U., 2012, Open Pit Mine Planning: Analysis and system modeling of conventional and oil sands applications. PhD Thesis, Queen’s University. Thyssenkrupp, 2017, Available: www.thyssenkrupp-industrial-solutions ...Mirjana V. Banković. "Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-07-13)
-
A Data Driven Approach for Raw Material Terminology
Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci... resources related to the raw material domain, as well as general lexica morphological dictionaries. Resource preparation started with dictionary (retro)digitisation and corpora enlargement, followed by adding new Serbian terms to general lexica dictionaries, as well as adding bilingual terms. Dictionary development ...
... resources related to the raw material domain, as well as general lexica morphological dictionaries. Resource preparation started with dictionary (retro)digitisation and corpora enlargement, followed by adding new Serbian terms to general lexica dictionaries, as well as adding bilingual terms. Dictionary development ...
... [57,58]). The Python script prepared in the form of a jupyter notebook was published at github [57]. Current work of the Ontolex group is focused on modeling word embeddings, collocations and similar words and we will add this feature when it becomes stable. An example of ontolex-lemon frequency and attestation ...Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja. "A Data Driven Approach for Raw Material Terminology" in Applied Sciences, MDPI AG (2021). https://doi.org/10.3390/app11072892
-
Prirodno prečišćavanje i stimulisana bioremedijacija podzemnih voda zagađenih naftnim ugljovodonicima
Nenad M. Marić (2016-09-26)Disertacija se konceptualno sastoji iz dva dela kojima je obuhvaćen pasivan (prirodnoprečišćavanje) i aktivan remedijacioni pristup (stimulisana bioremedijacija) kodpodzemnih voda zagađenih naftnim ugljovodonicima.U prvom delu disertacije prikazani su rezultati osmatranja procesa prirodnogprečišćavanja u podzemnim vodama na lokaciji istorijskog zagađenja kerozinom.Tragovi zagađenja naftnim ugljovodonicima pronađeni su 20 godina nakon prosipanjakerozina. Ovo je stvorilo osnovu za proučavanje efekata dugotrajne izloženostipodzemnih voda procesima biodegradacije u terenskim uslovima. Uočeno je da sesnižene koncentracije elektron akceptora (O2, NO3-, SO42-) i povišene koncentracijemetaboličkih produkata biodegradacije ...... IM, Eganhouse RP, Siegel DI, Bennett PC (1993) Crude oil in a shallow sand and gravel aquifer-III. Biogeochemical reactions and mass balance modeling in anoxic groundwater. Appl Geochem 8, 569– 586. Nenad M. Marić ...
... JP, Chai EY, Colthart JD, Klein CL (1989) Aerobic biodegradation of beznene, toluene and xylene in a sandy aquifer: data analysis and computer modeling. Ground water, vol. 27, no. 6, 267-312. 30. Christensen T, Bjerg P, Banwart S, Jakobsen R, Heron G, Albrechtsen HJ (2000) Characterization of ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs UNIVERZITET U BEOGRADU RUDARSKO-GEOLOŠKI FAKULTET ...Nenad M. Marić. "Prirodno prečišćavanje i stimulisana bioremedijacija podzemnih voda zagađenih naftnim ugljovodonicima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-26)
-
Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... 110, 152–163. [CrossRef] 25. Vamvakas, P.; Tsiropoulou, E.E.; Papavassiliou, S. Dynamic spectrum management in 5G wireless networks: A real-life modeling approach. In Proceedings of the IEEE INFOCOM 2019—IEEE Conference on Computer Communications, Paris, France, 29 April–2 May 2019; pp. 2134–2142. ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs symmetryS S Article Fuzzy Model for Risk Assessment of Machinery ...
... risk assessment of an individual component’s failure. Meticulous attention should be directed toward the factors that can cause a risky event, as well as toward the consequences and negative effects that can manifest after a failure. The consequences of a failure can have a negative impact on the ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
-
Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије
Nebojša B. Atanacković (2018-08-31)Велики број напуштених рударских радова и ограничена средства за рекултивацијуи ремедијацију деградираних простора подстакле су развој метода за издвајањеприоритетних локација на које је потребно усмерити даља истраживања. У датомконтексту, у склопу израде дисертације спроведене су научно-истраживачкеактивности које су за предмет имале анализу утицаја значајнијих напуштенихрударских радова на водне ресурсе на простору Србије јужно од Саве и Дунава.Разматрање предметне проблематике извршено је кроз развој и примену семи-квантитативне методологије за анализу ризика од загађивања површинских иподземних вода на регионалној размери. Примењена ...анализа ризика, водни ресурси, водна тела, рудничке воде, рударскиотпад, аналитички хијерархијски процеси, кластер анализа, математичка теоријаатрибута, функције припадности, семи-квантитативне методе... Pastorok A.R. et al., eds (2002) Ecological Modeling in Risk Assessment: Chemical Effects on Populations, Ecosystems, and Landscapes. Lewis Publishers 118. Pastorok A.R., Resit Akçakaya H., Regan H., Ferson S. and M. Bartell S. (2003) Role of Ecological Modeling in Risk Assessment. Human and Ecological ...
... загађивања водних ресурса модели су најчешће базирани на прорачуну транспорта и концентрације загађујућих супстанци (енгл. fate and transport modeling). Нумерички модели струјања подземних вода и транспорта загађујућих супстанци су нашли велику примену у пракси у области заштите подземних вода ...
... Београду, Рударско-геолошки факултет, Београд. 107. Nelson E., Mendoza G., Regetz J., Polasky S., Tallis H., Cameron D. R., ... Shaw M. R. (2009) Modeling multiple ecosystem services, biodiversity conservation, commodity production, and tradeoffs at landscape scales. Frontiers in Ecology and the E ...Nebojša B. Atanacković. "Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-08-31)
-
Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika
Kostić N. Bojan (2021)Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...... changes in conditions of contact metamorphism during garnet crystallization. According to pressure-temperature diagram based on thermobarometric modeling the temperature of 430±30° C and pressure up to 800 bars were inferred. During the first stage, i.e. prograde metamorphism formed garnet and pyroxene ...
... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs UNIVERZITET U BEOGRADU RUDARSKO-GEOLOŠKI FAKULTET ...Kostić N. Bojan. Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika, Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2021