Претрага
936 items
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The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia)
... 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 The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia) Authors: Ivanišević, Saša - sasa.ivanisevic@nis ...
... (ophiolitic mélange) of the Eastern Vardar Zone. The boundary between the syn-rift depositional sequence and pre-rift stage is marked by unconformity at the bottom of Miocene sediments. The rift initiation system tract was confirmed by several wells which drilled coarse siliciclastic sediments of the ...
... During the Middle Miocene after the early syn-rift stage, a “wide-rift” stage (Tari et al., 1999) marked by marine transgression began. All wells at the Itebej structure drilled through the rift climax system tract sediments which include reef limestones, sandy limestones (rarely) and coarse carbonate ...Saša Ivanišević, Jelena Radišić, Ivana Isić, Dejan Radivojević. "The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia)" in AAPG Vienna, Paratethys petroleum systems between Central Europe and the Caspian Region, Vienna, 26-27 mart, 2019, AAPG (2019)
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Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue modelling
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue modelling" in GeoMod 2021, Doorn, the Netherlands, 19.-23.9.2021., Utrecht University (2021)
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The influence of rainfall factors on soil resistance to erosion
Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek (2024)Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek. "The influence of rainfall factors on soil resistance to erosion" in EGU General Assembly 2024, Vienna, Austria, Apr 14–19, 2024, Copernicus GmbH (2024). https://doi.org/10.5194/egusphere-egu24-1137
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... Lagrange’s theorem at “Kovilovača“ open pit Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ ...
... in the interval from 1 to 3, most often at an interval from 1 and 2. To determine the parameter n, the La- grange’s theorem will be used, which states: Let f(x) be a function continuous to [a,b] and differentiable on an interval (a, b). Then there is at least one c, a < c < b, for which it ...
... 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 No. 3, 2015 Mining & Metallurgy Engineering Bor 53 MINING AND METALLURGY INSTITUTE BOR ISSN: 2334-8836 (Štampano izdanje) ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer
Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)... 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 Edited by Jacques Сапоић5, Alice Aureli and Jean Fried Transboundary Water Resources Management Multidisciplinary Approach ...
... issues and of sustainable use of water and its protection from pollution; 6) developing tools for appropriate groundwater management and monitoring at all levels. 4.9.2 Study Area The aquifer system under study is located between the Danube and Tisa (Tisza) rivers and extends to the vicinity of ...
... waters are water flows of a transitory nature, while only about 17o comes from rainfall within the region. The major rivers are the Danube and the Tisa. At the Hungarian-Serbian border the average annual river flow of the Danube is around 2500 m3 s-1, while for the Tisa the average is 700 m3 s-1. Figure ...Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić. "Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer" in Transboundary Water Resources Management - A Multidisciplinary Approach, Weinheim, Germany : Wiley-VCH (2011): 143-149
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The number of unimodular roots of some reciprocal polynomials
Dragan Stankov (2020)We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "The number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Temperature induced evolution of nanostructured Ni0.9Zn0.1O
Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo (2010)The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure ...Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo. "Temperature induced evolution of nanostructured Ni0.9Zn0.1O" in Journal of Applied Crystallography no. 43, Denmark: Blackwell Munksgaard (2010). https://doi.org/10.1107/S0021889810019163
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DFT study of free radical scavenging activity of erodiol
Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers, Springer Science and Business Media LLC (2013). https://doi.org/10.2478/s11696-013-0402-0
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Arsenopirit iz rudnih ležišta Šumadijsko-kopaoničke oblasti: paregeneza, sastav i produkti oksidacije
Ivana N. Jelić (2023)Arsenopirit, FeAsS je čest pratilac polimetaličnih orudnjenja Šumadijsko-kopaoničke oblasti. Jedan je od sulfida koji u najvećoj meri koncentriše zlato. Nepoželjan je u rudama jer njegovom oksidacijom na jalovištima može doći do oslobađanja arsena koji spada u elemente toksične za životnu sredinu. U okviru ovog doktorata sistematski su ispitivani arsenopiriti iz različitih stadijuma i tipova orudnjenja rudnih ležišta i mineralizacija Šumadijsko-kopaoničke oblasti (Rudnik, Sastavci, Trepča, Gokčanica – Drenjak i Rujak, Golijska reka i Jurija). Uzorci arsenopirita ispitivani su polarizacionom mikroskopijom ...... arsenopiritu: at% As = 866.67 diii – 1381.12 (2.3) Ovu jednačinu dobili su analizom prirodnih arsenopirita bez zonarnosti koji sadrže manje od 1 mas.% Co, Ni i Sb ukupno, i nekoliko sintetičkih arsenopirita. Pomenuti autori ispitivali su sastav arsenopirita u okviru faznog sistema Fe-As-S, tako ...
... vrednosti dixj;i; ii) veliki raspon As:S odnosa u arsenopiritu (od 30 do 38.5 at.% As) je u zavisnosti od temperature deponovanja, a ograničenja u sastavu arsenopirita zavise od minerala koji koegzistiraju u Fe-As-S sistemu. Zato prilikom određivanja iste treba voditi računa o prisustvu minerala koji ...
... fizičke i hemijske podatke u sintetičkom Fe-As-S sistemu. Saznanja o pomenutom sistemu su neophodna iz razloga što je Fe jedini metal koji formira kako uobičajene arsenske tako i uobičajene sulfidne minerale, a arsenopirit je jedina trojna faza u sistemu koja se obično javlja u oba tipa ležišta (pretežno ...Ivana N. Jelić. Arsenopirit iz rudnih ležišta Šumadijsko-kopaoničke oblasti: paregeneza, sastav i produkti oksidacije, Beograd : [I. Jelić], 2023
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An Approach to Development of Bilingual Lexical Resources
... multi-term descriptors as a means to better identify the content. The Human Language Technology group at the University of Belgrade developed Bibliša (http://hlt.rgf.bg.ac.rs/Biblisha), a tool aimed at enhancement of search possibilities in digital libraries of e-journals, or more precisely, textual ...
... 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 101 An Approach to Development of Bilingual Lexical Resources Ranka Stanković University of Belgrade Faculty of Mining ...
... importance and several current large scale European projects are tackling this issue from different perspectives. One of them, META-NET, is aimed at building technological foundations of a multilingual European information society, through a shared vision and strategic research agenda. Among its ...Stanković Ranka, Obradović Ivan, Trtovac Aleksandra. "An Approach to Development of Bilingual Lexical Resources" in Proceedings of the Fifth Balkan Conference in Informatics BCI 2012, Workshop on Computational Linguistics and Natural Language Processing of Balkan Languages – CLoBL 2012, September 2012, Novi Sad : BCI (2012)
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Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata
... for the period 2011-2014. LITERATURE [1] Burrough P. A., McDonnel R. A., [2006]: Principi geografskih informacionih sistema – drugo izdanje, Prostorni informacioni sistemi i geostatistika. Beograd : Građevinski fakultet Univerziteta u Beogradu, 2006. ISBN 86-7518-070-5. [2] ESRI, [2010]. I ...
... MODEL The OpmGIS geodatabase, as the key element of the information system, is a repository for spatio-temporal data sets, aimed at planning, monitoring and managing work at open pits. It enables not only visualization, but also analysis of stored data. Data registered in this database are the following: ...
... http://resources.arcgis.com/content/building-geodatabases-case-tools [3] Gojak Z., Mitrović S., Stanković R., Kitanović ., [2011]. BPUBS: informacioni sistem za istražne radove ugljenih basena srbije, Ugalj 2011 Jugoslovenski komitete za površinsku eksploataciju, ISBN broj: 978-86-83497-17-1, str. 66-73 ...Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović. "Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata" in Podzemni radovi, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2012)
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Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке
... bilo 0,5 m, a interval uzorkovanja 0,5 s. Pomoću integrisanog GPS uređaja snimljene su pozicije mernih tačaka u WGS84 geografskom sistemu i vreme uzorkovanja koje je bilo potrebno za korekciju dnevnih varijacija sa čitanja sa donje sonde, s obzi‐ rom da se u svim primerima u raspol ...
... 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 17. Конгрес геолога Србије 17 th Serbian Geological Congress Књига апстраката Book of Abstracts 736‐741 Врњачка Бања ...
... but as this unit is great for application, in geophysics and in archeology, nanotesla is used nT = 10‐9T. Two types of magnetization are measured at the same time by magnetic measurements: induced and remanent magnetization (the thermoremanent magnetization is particularly significant in a ...Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић. "Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке" in Књига апстраката 17. Конгрес геолога Србије, Врњачка Бања 17-20. мај, Српско геолошко друштво (2018)
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Flyrock induced by blasting in surface mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas
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 ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović. "Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas" in 31st International Conference Ecological Truth & Environmental Research-EcoTER'24, Sokobanja, 18-21. jun 2024, Bor : Tehnički fakultet u Boru (2024)
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Pre-failure deformation monitoring as rockfall prediction tool
... 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 IOP Conference Series: Earth and Environmental Science PAPER • OPEN ACCESS Pre-failure deformation monitoring as rockfall ...
... Environ. Sci. 833 012197 View the article online for updates and enhancements. This content was downloaded from IP address 147.91.1.41 on 23/09/2021 at 11:35 Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must ...
... our case study, so their experience was inspiring. They conclude that smaller events, do not leave clear footprints (scars, faces) as large events at specified scale, but seem better correlated to the external triggering factor, whereas larger events leave easily detectable footprints, but can occur ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
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A Mathematical Learning Environment Based on Serbian Language Resources
In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...... CQP is a powerful and efficient concordance system which can process query patterns specified both at the character level (specifying a form of an individual word or an annotation) and at the token level (specifying syntactic relationships between tokens). Through CQP web users can both ...
... read, which is a role that is by default assigned to every user at registration. Editor and reviewer are users who have the task to update the contents of the dictionary, with the difference that in the hierarchy the reviewer is at a higher level. Reviewer is a user who has the exclusive right ...
... 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 7th International Scientific Conference Technics and Informatics in Education Faculty of Technical Sciences, Čačak, Serbia ...Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan. "A Mathematical Learning Environment Based on Serbian Language Resources" in Proceedings of the 7th International Scientific Conference Technics and Informatics in Education, Faculty of Technical Sciences, Čačak (2018)
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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd... laboratory and at a specific field location. Based on the obtained results, certain correlations with the parameters obtained by standard procedures were observed and can be used to solve practical tasks. Materials and Methods All tests were performed on natural gravel material sampled at a temporary ...
... 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 DO!I 10.1007/511204-024-09939-x Soil Mechanics and Foundation Engineering, Vol. 61, No. 1, March, 2024 (Russian Original No ...
... laboratory and field conditions are proposed; – the values of the modulus of deformation of the pavement foundation layer (subgrade) were deter- mined at a certain location using the static plate load test (SPLT) and a lightweight deflectometer (LWD); – the obtained data were analyzed and correlations ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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Keyword-Based Search on Bilingual Digital Libraries
This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović. "Keyword-Based Search on Bilingual Digital Libraries" in Semantic Keyword-Based Search on Structured Data Sources - Second COST Action IC1302 International KEYSTONE Conference, IKC 2016, Springer (2017). https://doi.org/10.1007/978-3-319-53640-8_10
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On the compatibility of lexical resources for NooJ
Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.... possible values, animate (v) and inanimate (q), while the Croatian *.def file does not envisage such a possibility. A standardization effort aimed at defining at least common feature codes would certainly be a step forward. Linguistic analysis results In the next step, NooJ resources were applied to ...
... 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 Proceedings of the 2011 International NooJ Conference 1 ON THE COMPATIBILITY OF LEXICAL RESOURCES FOR NOOJ RANKA STANKOVIĆ ...
... does not exist in English and French, which use the determiner category instead, whereas other languages do not recognize the determiner category at all. As to properties, there are, for example, three types of masculine gender in Polish (animate person, animate animal, and inanimate), while Serbian ...Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović. "On the compatibility of lexical resources for NooJ" in Automatic Processing of Various Levels of Linguistic Phenomena: Selected Papers from the 2011 International Nooj Conference, Cambridge Scholars Publishing (2012): 96-108
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E-Connecting Balkan Languages
In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.... for various linguistic and literary researches. This query retrieved 129 aligned segments, each of which contained at least one of the keywords from the produced query set in at least one of the languages. It comes as a surprise that only 8 of these segments contained query keywords in both ...
... 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 E-Connecting Balkan Languages Cvetana Krstev Faculty of Philology University of Belgrade cvetana@matf.bg.ac.rs Ranka ...
... Introduction The software tool WS4LR (shortened for WorkStation for Language Resources) is being developed by the Language Technology Group organized at the Faculty of Mathematics for several years now. Its first version was introduced in 2004 [8] and it dealt mainly with harmonizing various he ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva. "E-Connecting Balkan Languages" in Proceedings of the Workshop Workshop on Multilingual resources, technologies and evaluation for Central and Eastern European Languages, 17 September 2009, eds. C. Vertan, S. Piperidis, E. Paskaleva and Milena Slavcheva, Borovets, Bulgaria : Association for Computational Linguistics Stroudsburg, PA, USA (2009)