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Упит dcterms_subject_txt:seismic effects of blasting

2830 items

  • Petrographical and organic geochemical study of the subbituminous coal from the Dubrava field, Aleksinac basin (Serbia)

    Željana Sekulić, Ksenija Stojanović, Achim Bechtel, Reinhard Sachsenhofer, Miomir Petrović, Ivan Kojić, Dragana Životić (2019)
    ... decrease of content of short-chain (С15-Сг0) and increase of long-chain (Cz6-Ca3) homologues. The obtained results suggest lowering of the water table during the formation of the Main coal seam. This change resulted in lesser inundation and deposition of MM associated with smaller input of bacterial ...
    ... ratios (6'3) of individual biomarkers were used to evaluate the origin and depositional environment of OM. The content of vitrinite group macerals increases from top to bottom of the Main coal seam which is associated with a notable decrease of liptinite and mineral matter (MM). Contents of collotelinite ...
    ... Development Office - Belgrade, Makedonska 33, 11000 Belgrade, Serbia 5; University of Belgrade, Innovation Center of the Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia 6; University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia *: Corresponding Author: ...

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... rodnimuzej.rs Pottery making in Rujište near the Municipality of Ražanj (Central Serbia) is one of the most archaic ways of producing ceramics. “Crepulja” – bread-baking pan, a specific type of pottery, is made of two types of clay that are excavated exclusively at the location called Crepulja’s ...
    ... Sofia  Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, Sofia  National Museum of Natural History, Bulgarian Academy of Sciences, Sofia  Sofia University “St. Kliment Ohridski”, Sofia  University of Mining and Geology “St. Ivan Rilski”, Sofia ...
    ... vessels meant for thermal processing of food. The technic of making of this bread-baking pans -crepulja- is very simple at first sight – hand-making with the help of several wooden and metal tools (Petrović, 1936; Djordjević, 2021) but it is also the optimal way of making these ceramic vessels. Nothing ...

  • Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model

    Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević (2024)
    Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...
    zero-shot, few-shot, sentiment, Serbian, Mistral model

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... system. The objective of this paper is to present the results of recent monitoring activities conducted from 2014 to 2019 as a part of IPL 181 Project report. Study Area The study area is located on the right bank of the Sava river, 25 km South-west of Belgrade, the capital of Serbia. Extensive ...
    ... Arbanas, University of Zagreb, Croatia Željko Arbanas, Faculty of Civil Engineering, University of Rijeka, Croatia Amin Askarinejad, Technische Universiteit Delft, Delft, The Netherlands Peter T. Bobrowsky, Geological Survey of Canada, Sidney, Canada Michele Calvello, University of Salerno, Italy Giovanna ...
    ... University of Twente, Enschede, The Netherlands Matjaž Mikoš, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Slovenia Alessandro C. Mondini, Research Institute for Geo-Hydrological Protection, CNR, Italy Veronica Pazzi, Department of Earth Science, University of Florence, Florence ...

  • Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes

    Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)
    Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...

  • 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 polynomials

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... University of Belgrade Faculty of Mining and Geology Miloš Utvić milos.utvic@fil.bg.ac.rs University of Belgrade Faculty of Philology Belgrade, Serbia 1 Introduction It is generally known that users typically formulate very short instead of long and complex queries. The lemmatization of corpora ...
    ... processors of OCWB (CQP) and NoSketch Engine (Manatee) in the following way: – user can request that particular term X in a given query should be re- placed with lemmas or word forms of terms which are semantically re- lated to X in some manner (synonyms of X, antonyms of X, meronyms of X, hyponyms of X, hypernyms ...
    ... SrpKor2013 The Corpus of Contemporary Serbian (SrpKor) was established in 2002, at the initiative of Professor Ljubomir Popović, with the aim of enabling researchers to consult the chosen collection of Serbian texts via the Internet (Vitas and Krstev, 2012). The first version of SrpKor, SrpKor2003, has ...

  • A Description of Morphological Features of Serbian: a Revision using Feature System Declaration

    Cvetana Krstev, Ranka Stanković, Vitas Duško (2010)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    Morphology, Lexicon, lexical database, Standards for LRs
    ... problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions ...
    ... 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 A Description of Morphological Features of Serbian: a Revision ...
    ... encountered in the previous versions, such as lack of attributes or attribute values, explicit statement of valid combinations of attribute and values. We expect that our description will transform without loss of information in the new version of MULTEXT-East format. 7. References Courtois, B ...

  • New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"

    Saša Ivanišević, Dejan Radivojević (2018)
    геофизички каротаж, депозиционе средине, лежишта угљоводоника, миоцен, пост‐ рифтнo, секвенциона стратиграфија
    ... is  presented  through  the  integration of nine wells and one seismic profile.  The seismic profile is west‐east oriented, crossing the  “Kikinda‐Mokrin” high and  connecting  the above wells.   Reconstruction of depositional environments  and correlation of lithostratigraphic units (Figure 1a and  ...
    ...  2018).  Figure  1.  a)  Interpreted  seismic  profile with  lithostratigraphic  units  (formations).  b) Well‐log  data  correlation within Upper  Miocene formations in the area of the “Kikinda‐Mokrin” high. Parallel presentation of the industrial correlation of A, D, E, F and  G  reservoirs  and  the  ...
    ... loration area includes  403  sediments of the Pannonian, Pontian, Pliocene and Quaternary age (Matenco  Radivojević, 2012; Radi‐ vojević, 2014). Based on the interpretation of seismic data, the shelf‐edge trajectory was reconstructed,  on the basis of which no significant drop in the lake water ...

  • 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
    ... Liebherr in terms of R, with grades "good" in extent of 40% and “average” in extent of 60%; M as "average" in extent of 100% and S as "adequate" in extent of 100%; machine Dressta as "average" in all terms and Caterpillar as "good" in terms of R and S and "excellent" in term of M. This can be written ...
    ... 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 ...
    ... Industry of Serbia Kostolac, Serbia radisa.duric@te-ko.rs Predrag Jovancic Faculty of Mining and Geology University of Belgrade Belgrade, Serbia predrag.jovancic@rgf.bg.ac.rs Abstract—Each technical system within itself carries the great potential danger of possible occurrence of failure ...

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • WS4LR - a Worksation for Lexical Resources

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović (2006)
    Lexical Resources, Wordnet, Serbian
    ... and the technological point of view. Although the HLT group made every reasonable effort to keep the ever growing pool of resources as coherent and standardized as possible, a certain level of heterogeneity was inevitable. Hence, due to the growth of the volume of resources as well as their h ...
    ... provide for text processing using this type of dictionaries, but offer no facilities for dictionary development and management. WS4LR enables manipulation of dictionaries both of lemmas and of inflected forms. In LADL format, all the entries in the dictionary of simple word lemmas, the so called DELAS ...
    ... inflected form of a compound by taking into consideration grammatical agreement, word order, omissions, etc. The entry in DELAC is therefore accordingly more complex: c-lemma.Cnnn [+SinSem]* where c-lemma is a list of constituents in the form of entries of the DELAF dictionary of simple word forms: ...

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... structure of the BAEKTEL OER framework isillustrated by the deployment model in Figure 1.The initial framework consist of a network of six nodes at WB universities, namely University of Belgrade (UB), University of Kragujevac (UNIKG), University of Niš (UNI) from Serbia, University of Banja Luka ...
    ... model in Figure 1.The initial framework consist of a network of six nodes at WB universities, namely University of Belgrade (UB), University of Kragujevac (UNIKG), University of Ni8 (UNI) from Serbia, University of Banja Luka (UBL) and University of Tuzla (UNTZ) from Bosnia and Herzegovina and University ...
    ... sity of Belgrade—Faculty of Mining and Geology

    One of the main tasks within the development of the ICT solution for the BAEKTEL metadata portal was to define anappropriate metadata schema, drawing its data elements from one or more namespaces, that is, containers for sets of identifiers ...

  • The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

    Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan (2008)
    In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...
    LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval
    ... 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 The Usage of Various Lexical Resources and Tools to Improve the Performance of Web ...
    ... brief description of resources is given, followed by an outline of the web tool which enables their integration. Finally, a set of examples is chosen in order to illustrate the use of the lexical resources and tool in question. Results obtained for these examples show that the number of documents obtained ...
    ... Ranka Stanković2 , Duško Vitas 3 , Ivan Obradović4 1 professor, Faculty of Philology, Belgrade, 2 assistant, Faculty of Mining and Geology, Belgrade 3 professor, Faculty of Mathematics, Belgrade, 4 professor, Faculty of Mining and Geology, Belgrade E-mail: cvetana@matf.bg.ac.yu, ranka@rgf.bg.ac ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... dictionary used for its production consists of automatically generated entries representing all inflectional forms of a DELAS dictionary. It consists of a word form, its lemma, word type designation, semantic mark- ers and a set of grammar categories. Here is an example of one line from a DELAF dictionary: ...
    ... Opportunities for working with dictio- naries of MWUs are also available. The most important one is the automatic generation of the complex DELAC lemmas from a simple list of their basic forms. After years of working on dictionary expansion, the number of lexical records and categories (semantic and ...
    ... Krstev, Cvetana. Processing of Serbian. Automata, Texts and Electronic Dic- tionaries. Faculty of Philology of the University of Belgrade, 2008 Krstev, Cvetana, Ranka Stanković, Duško Vitas and Ivan Obradović. “WS4LR - a Worksation for Lexical Resources”. In Proceedings of the Fifth Interantional Conference ...

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... other side, the bulkiness of two methyl groups in the molecule of DMSO as well as the bulkiness of the inert tridentate ligands in the structure of the studied complexes could prevent the formation of the metal–ligand bond and slow down the rate of the substitution. The reactivity of pyridine is almost the ...
    ... the complexes with TLtBu ligand due to the bulk- iness of the inert tridentate ligands. Also, the presence of t-Bu groups on the terminal imadazole rings of TLtBu ligand significantly slow down the rate of the substitution. The order of reactivity of used ligands is: thiourea > I� > Br� > NO2 � > pyridine ...
    ... with TL" ligand due to the bulk- Substitution iness of the inert tridentate ligands. Also, the presence of t-Bu groups on the terminal imadazole rings of TL" Kinetics ligand significantly slow down the rate of the substitution. The order of reactivity of used ligands is: Mechanism thiourea > I~ > Br- > ...

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data

    Vesna Cvetkov, Ilija Vasiljević, Mirko Petković (2015)

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • On the compatibility of lexical resources for NooJ

    Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović (2012)
    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.
    ... content of *.def files for resources of the seven selected languages. Table 1 presents the results of the analysis of *.def files in the case of nouns. Value domains of two properties, one of them appearing in all languages and the other appearing in five out of seven, namely, 2 NooJ linguistic ...
    ... them. From the point of view of Serbian, there was additional interest in this issue in view of the fact that the development of a new Serbian module for NooJ is underway. The analysis of compatibility of NooJ resources outlined in this paper was tackled by a comparison of the annotation systems ...
    ... The content of *.def files enables NooJ to recognize properties and their values and they can also improve the visibility of representations of dictionaries in tabular form. The first step in the analysis of compatibility of resources was precisely a comparison of metadata, namely of the content ...