Претрага

Упит dcterms_subject_txt:Economic Geology

1074 items

  • Wordnet Development Using a Multifunctional Tool

    Ivan Obradović, Ranka Stanković (2007)
    In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...
    Wordnet development, language resource integration, HLT tools
    ... instance, by means of the Xpath expression: “//SYNSET[DOMAIN='geology']” the user can retrieve all synsets from the wordnet that belong to the domain of geology, or more precisely, that contain the XML tag with the content “geology”. WS4LR offers predefined Xpath expressions, but the user ...
    ... 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 Wordnet Development Using a Multifunctional Tool Ivan Obradović University of Belgrade Faculty of Mining and Geology Đušina ...
    ... Đušina 7, 11000 Belgrade, Serbia ivano@rgf.bg.ac.yu Ranka Stanković University of Belgrade Faculty of Mining and Geology Đušina 7, 11000 Belgrade, Serbia ranka@rgf.bg.ac.yu Abstract In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool ...

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria

    Vladimir Krivošić, Luka Crnogorac, Rade Tokalić (2024)
    The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...
    utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijuma

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... Belgrade, Faculty of Mining and Geology, {ivano;ranka;olja;jelena.prodanovic;veselin.ilic}@rgf.bg.ac.rs Abstract: In this paper we present an approach to introducing modern computer-mediated activities in course instruction at the Faculty of Mining and Geology - University of Belgrade, as a c ...
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...
    ... For several years now, computer-mediated activities in the learning process have been gradually introduced within the Faculty of Mining and Geology (FMG) - University of Belgrade, as complementary to traditional face-to-face instruction 1 ...

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... reliability, maintainability, supportability and the other constituent parts of availability are crucial and must be established and optimized for the economic success of selected machine or overall business systems [5]. The most usual consideration of the availability of machines or any other engineering ...
    ... Fuzzy Expert Model for Availability Evaluation Dejan Ivezic Faculty of Mining and Geology University of Belgrade Belgrade, Serbia dejan.ivezic@rgf.bg.ac.rs Milos Tanasijevic Faculty of Mining and Geology University of Belgrade Belgrade, Serbia milos.tanasijevic@rgf.bg.ac.rs Radisa ...
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...

  • KINDRA project – knowledge inventory for hydrogeology research

    Vesna Ristić Vakanjac, Zoran Stevanović, Bojan Hajdin, Marina Čokorilo Ilić, Veljko Marinović (2017)
    baza podataka, inventar, hidrogeologija

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • 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
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...
    ... Budapest 1117, Hungary Department of Earth Sciences, Utrecht University, Budapestlaan 6, 3584 CD Utrecht, Netherlands 5 Faculty of Mining and Geology, University of Belgrade, ? MTA-ELTE Geological, Geophysical and Space Science Djušina 7, Belgrade, Serbia Research Group of the Hungarian Academy ...
    ... due to slab- rollback processes (e.g. Ustaszewski et al. 2010; Matenco and Radivojevic 2012; Toljic et al. 2013; Andric et al. 2017). 2.1 Geology of the study area The study area exposes the Western Vardar ophiolites and Adria-derived Paleozoic-Mesozoic sequences, which together form the ...

  • Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders

    Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...
    ... Pharmacy, Department of Bromatology, Belgrade, Serbia “Department of Mineralogy, Crystallography, Petrology and Geochemistry, Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia We studied the influence of Ag doping on the crystal structure and magnetic properties ...

  • Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings

    Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... of interest and available data sources. It is especially practical for use in developing countries, where various organizational, technical and economic constraints prevent application of more advanced data driven methods. Limitations and restric- tions of the approach are also discussed. context ...
    ... (Probistip, Makedonska Kamenica, Delcevo and Tetovo in 2015, 2016, 2017, 2018 respectively) are clear examples of such scenarios. Apart from the economic loss, some of these landslides have been life- threatening and human losses have been reported (PESHEVSKI et al., 2017). In the absence of more precise ...
    ... especially practical for large scale (regional) mapping in developing countries, where various obstacles from an organiza- tional, technical and economic nature exist. It is simple and makes reasonable the use of the limited but readily available data- sets in cases where greater detail is lacking ...

  • Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia

    Fen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... consists of rock masses of sedimentary origin, not entirely homogeneous in composition. Limestones are the most important lithological members from both economic aspect and aspect of mining exploitation technology. Physical and mechanical properties of limestone in the deposit are spatially very uneven. E ...
    ... Parameters of the Law of Oscillation of the Rock Mass in Blasting. Ph.D. Thesis, Faculty of Mining and Geology, Belgrade, Serbia, 2010; pp. 35–38. 9. Simeunović, D. Mathematics; Faculty of Mining and Geology, Mining Department: Belgrade, Serbia, 1985; pp. 101–103. 10. Lutovac, S.; Trajković, S.; Katona ...
    ... Ph.D. Thesis, Faculty of Mining and Geology, Belgrade, Serbia, 1993. 18. Trajković, S.; Tokalić, R.; Lutovac, S. Study of Seismic Impaction the Surrounding Building Structures as the Result of Blasting at Nepričava Open Pit—Lajkovac; Faculty of Mining and Geology: Belgrade, Serbia, 2004; pp. 1–47 ...

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...
    ... conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@rgf.bg.ac.rs (V.Č.); vladimir.milisavljevic@rgf.bg.ac.rs (V.M.); dejan. ...
    ... Methods Veljko Rupar 1’*, Vladimir Ceba’ek 1, Vladimir Milisavljevié 1, Dejan Stevanovié 1 and Nikola Zivanovié ” Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@ref.bg.ac.rs (V.C.); vladimir.milisavljevic@rgf.bg.ac.rs (V.M.); dejan.s ...

  • Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić (2019)
    We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...
    funkcije raspodele gustine, lateralna raspodela gustine, karta gustine podloge

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... Trajković S., Slimak Š., Lutovac S,. (2005): Technique of Blasting and Eartquakes, Faculty of Mining and Geology, Belgrade, pp. 199. [3] Simeunović D,.(1985): Mathematics, Faculty of Mining and Geology – Mining Department, Belgrade pp. 102- 103. [4] Ivanović B., (1973): Theoretical Statistics, Naučna ...
    ... , Faculty of Mining and Geology, Belgrade, pp. 1-47. No. 3, 2015 Mining & Metallurgy Engineering Bor 62 [8] Lutovac S., (2010). Model for Deter- mining Parameters of the law Oscillation of the Rock Mass in blasting, Ph. D. Thesis, Faculty of Mining and Geology, Belgrade, pp. 1- 240. [9] ...
    ... приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.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 ...

  • Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)

    Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)
    Paleontology, Stratigraphy, Ecology, Evolution, Behavior and Systematics

  • Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia

    Marina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić (2020)
    Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analize

  • Град Охрид и Извештај о одржаним међународним конференцијама “SDEWES” и “BALWOIS” на Охриду (Македонија)

    Драгољуб Бајић, Јелена Зарић, Весна Ристић Вакањац, Душан Поломчић, Марина Чокорило Илић (2014)
    Представљан је рад SDEWES и BALWOIS конференције које су одржане нa Охриду. Дат је увид у рад и развој ових конференција, као и утисака и искустава учесника, представника Департмана за хидрогеологију, Рударско-Геолошког факултета. Акценат је стављен на секцију која се бави одрживим развојем водних ресурса, уз прилог о самом Охриду због његовог геолошког и хидрогеолошког значаја и чињенице да је познати туристички центар, седиште бројних конгреса и конференција из области вода, управо због своје интересантне историје и природних ...
    Охридско језеро, водни ресурси, туризам