Претрага

Упит dcterms_subject_txt:Economic Geology,Geochemistry and Petrology

2372 items

  • 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)

  • Reprint of Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index

    Životić Dragana, Bechtel A., Sachsenhofer R., Gratzer R., Radić D., Obradović M., Stojanović Ksenija (2015)

  • Split-Desktop software for the analysis of fragment size distribution of blasted rock mass

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)
    Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...
    Split-Desktop softver, drobljenje stena, miniranje, analiza, digitalna obrada fotografija

  • Postorogenic interplay of tectonic and magmatic processes in the Kopaonik Mts. area.

    Mladenović Ana, Trivić Branislav, Cvetković Vladica (2015)

  • Утицај обртног магнетног поља на дерацемизацију кристала натријум-хлората

    М. Милојевић, А. Жекић, П. Дабић, Б. Вучетић, Б. Максимовић (2023)
    ... trg 12, 11000 Belgrade; ? University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade e-mail: andrijana(q)ff.bg.ac.rs Viedma ripening [1], application of ultrasonic waves [2], addition of impurities [3] and temperature changes [4] are some of the methods of deracemization of ...
    ... слободном 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 ...
    ... rotational frequency of the field affects the fraction of the obtained crystals. At frequencies of 800, and 1200 rpm, the amount of both enantiomers is approximately the same; at frequencies of 200, 400, and 1000 rpm, |. – orientation of crystals is dominant, while at 600 rpm, D – orientation of crystals ...

  • 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
    ... 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 ...
    ... 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 handles electronic dictionaries, wordnets and aligned texts, and provides for their s ...
    ... regular expressions and inflectional and morphological finite state transducers (FSTs) to locate morphological, lexical and syntactic patterns, remove ambiguities, and tag simple and compound words in texts. The text parsing possibilities offered by regular expressions and FSTs proved also useful ...

  • New Petrological and Mineralogical Data acquired during Three Years of SCOPES

    Šarić Kristina, Pačevski Aleksandar, Cvetković Vladica, von Quadt Albrecht, Peytcheva Irena (2013)

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

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... of 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 ...
    ... The system is publicly available and offers support for all active courses covering seven educational profiles, three at the Mining department and four at the Geology department, with a total of 363 courses at undergraduate studies, 254 at master studies and 135 at doctoral studies. The courses ...
    ... the Faculty of Mining and Geology (FMG) - University of Belgrade, as complementary to traditional face-to-face instruction 1 1 The research outlined in this paper was supported by the Serbian Ministry of Education and Science grant #III47003 ...

  • Some models for determination of parameters of the soil oscillation law during blasting operations

    Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić (2018)
    ... from the Project No. 33025 and 33029 financed by the Ministry of Education of the Republic of Serbia realized by the University of Belgrade, Faculty of Mining and Geology. Author Contributions: Suzana Lutovac and Branko Gluščević performed the modelling, optimization and analysis of results. The paper ...
    ... Blasting and Shock Waves; Faculty of Mining and Geology: Belgrade, Serbia, 2005; p. 199. 3. Medvedev, S.V. Seismic of Mountainous Explosions; Nedra Publisher: Moscow, Russia, 1964; pp. 42–43. 4. Lutovac, S.; Gligorić, Z.; Beljić, Č.; Ravilić, M. Derivation the soil oscillation law and determination ...
    ... Oscillation Law during Blasting Operations Suzana Lutovac 1,*, Dragan Medenica 2, Branko Gluščević 1,*, Rade Tokalić 1 and Čedomir Beljić 1 1 Faculty of Mining and Geology, Djušina 7, Belgrade 11000, Serbia; rade.tokalic@rgf.bg.ac.rs (R.T.); cedomir.beljic@rgf.bg.ac.rs (Č.B.) 2 Volmont Ltd., ...

  • Старење бунара у алувијалним срединама различитог степена оксичности

    Brankica Majkić (2013-09-27)
    Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...
    старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине
    ... Hekkenberg R. and M. de Jonge (1999): Modeling In Situ Iron Removal from Ground Water, Groundwater, Vol 37 No.6, pp 811-817. 6. Appelo and D. Postma (2005): Geochemistry, Groundwater and Pollution. Balkema Publishers, Leiden, The Netherlands. 2005. 2nd ed. Hardcover, pp. 649 7. Applin K. R and N. Zhao ...
    ... advancegwt.com/doc/1997.pdf 64. Kappler A. and K. Straub (2005): Geomicrobiological Cycling of Iron, Reviews in Mineralogy and Geochemistry 2005 v. 59 no. 1, p. 85-108 65. Kappler. A, B. Schink and D. K. Newman (2005): Fe(III) mineral formation and cell encrustation by the nitrate-dependent ...
    ... 1: Genesis, mineralogy and geochemistry. Applied Geochemistry 18, no. 6: 927–939. 154. Houben, G. (2004) Modeling the buildup of iron oxide encrustations in wells. Ground Water 42, no.1, pp. 78–82. 155. Houben G. and C.Treskatis (2007): Water Well Rehabilitation and Reconstruction, The McGraw-Hill ...

  • 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
    ... operational availability, it must be noted that 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 ...
    ... 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 ...
    ... Jovancic, P., Optimization of operation and costs of auxiliary mechanization in order to increase the utilization of overburden and coal systems on the open cast mines of Public Enterprise "Elektroprivreda" Serbia – research study, Faculty of Mining and Geology, Belgrade, 2018 (in Serbian) ...

  • Geochemical Map of Eastern Serbia in 1:1 000 000. and applicarion in defining the ecological status of selectet area

    Gordanić Vojin, Milovanović Dragan, Vidović Milka, Rogan Saša, Trajković Ivana (2011)

  • 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
    ... depending on the region 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 ...
    ... 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, while still producing representative susceptibility zonation of a region. The possibility to vary ratings and weightings of ...
    ... 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 data from particular rain gauge stations or correlations of rainfall quantities and land- slide movement rates ...

  • Application of satellite gravity and geomagnetic data

    Petrović Dragana, Mladenović Ana (2011)

  • 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
    ... 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.stevanovic@rgf.bg.ac.rs (D.S.) Department of Ecological Engineering for Soil and Water ...
    ... 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.stevanovic@rgf.bg.ac.rs (D.S.) 2 Department of Ecological Engineering for Soil and Water Resources Protection, Faculty ...
    ... 81–89. [CrossRef] 2. Duffault, P. Structural weaknesses in rocks and rock masses: Tentative classification and behaviour. In Proceedings of the ISRM International Symposium, Tokyo, Japan, 21–24 June 1981. 3. Goodman, R.E. Engineering Geology; John Wiley & Sons: Hoboken, NJ, USA, 1993. 4. Mohamed, Z.; Mohamed ...

  • Investigation of synergetic effect of co-pyrolysis of lignite and high density polyethylene (HDPE)

    Gajica Gordana, Đoković Nataša, Mitrović Danica, Kojić Ivan, Životić Dragana, Stojanović Ksenija (2014)

  • Evolution of coal ash solidification properties with disposal site depth and age, Gacko Thermal power plant case

    Knežević Dinko, Nišić Dragana, Beatović Sreten, Tomašević Aleksandra (2017)

  • 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

  • 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