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Упит dcterms_subject_txt:well-logging in karst

1997 items

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... scene in the 1980s. In the ending years of the 1980s and in the beginning of the 1990s, Croatian music scene became real industry that produced very popular bands. 2.3 YU Rock Scene in Slovenia Chansons and folk music were always the most important music forms, however in the 1960s, as well as in all ...
    ... Yugoslav rock scene and great influence on the society and culture in general. In Yugoslavia, as well as in the world, rock music represented a comprehensive movement that influenced numerous events. 2 YU Rock Scene per Territories In this part of the Multimedia Project, many bands and performers are ...
    ... station that was very popular across Europe, as well as in Yugoslavia. 3.7 Cult TV Shows Rock music gained its share on television after radio and magazines. Once Radio Belgrade became Radio Television Belgrade in 1958, the new television in Serbia, like in other states of Yugoslavia, was primarily formed ...

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... with zoned rim. This indicates significant changes in garnet chemistry, which can be observed in polarized light under microscope as well as in BSE images using scanning electron microscopy (Figs. 2, 4). The darker zones in BSE images are richer in Al while lighter zones are of a higher Fe content ...
    ... tively. The studied garnets have grown in a typical skarn rock, rich in ore minerals. Major and trace element zonal distributions reflect primarily the compositional heterogeneity of the proto- lith, changes in fluid composition during garnet growth, as well as, reactions controlled by fluid pathways ...
    ... often macroscopically, as well. The discovery that the andradite-rich garnets contain more Cu than grossular-rich opened a question: whether garnet chemistry could be used as a guide in prospecting Cu-skarn deposits (Somarin 2004)? Use of the rare earth elements (REE) in studies of the nature and ...

  • Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians

    Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... for instance in vicinity of the Upper Getic thrust at site De9, where a decimetre to meter scale sub-vertical dextral fault deforms Lower Cretaceous limestones (Figs. 8 and 9b). Strike-slip kinematics is well visible in fault gouges, such as NW-SE oriented dextral strike-slip fault in Cg2 (Figs. 8 ...
    ... the well observed syn-kinematic deposition (e.g., inset in Fig. 2, see also Matenco and Radivojević, 2012; Stojadinovic et al., 2013, 2017; Toljić et al., 2013). Large-offset early-middle Miocene normal faults and detachments accommodating a N-S to ENE-WSW oriented extension are observed in the ...
    ... g., brittle fault gouges versus in- dividual fault planes or brittle shear bands) as well as on the compati- bility of deformation and offsets observed in the field with the one at map scale. The lateral correlation has demonstrated that the thrusting observed at the Supragetic and Upper Getic nappe ...

  • 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
    ... Faculty of Mathematics, Belgrade E-mail: cvetana@matf.bg.ac.rs, ranka@rgf.bg.ac.rs, vitas@matf.bg.ac.rs Abstract 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 ...
    ... 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.rs A Description of Morphological Features of Serbian: ...
    ... In order to explicitly formulate relations between categories and their values as well as their applicability we have used feature structure constraints with conditional and bi-conditional tests ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... 6 in Fig. 8c, e, cross-section c-c’). Such propagation of strike-slip faults and truncation of older structures in the south are common features in other models as well (e.g., fault 6 in M2, 6 and 7 in M3, 6 in M4, southern prolongation of 4 and 5 in M5, 5 in M7, 6 in M8, 6 and 7 in M9, 3 in M10 ...
    ... prolongation of 4 in M11 and M12, Fig. 5). The decrease in offset in models explains well the observed significant decrease in Timok fault dextral offset from 65 km in the north to around 5–10 km south of Pirot basin (Fig. 1c). A large part of the Timok dextral offset is taken up by thrusting in the Balkanides ...
    ... structures (Figs. 5–7, 9d). The reduced number of faults in these models and a more gradual transition of deformation along the indenter’s margins results in a less well- developed structural pattern. These features have also been observed in previous studies (e.g., Casas et al., 2001; Leever et al ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... injection well. The CO» is compressed in stages to 80 bars and cooled to about 40%C before entering the wellhead. It is then in the supercritical state — in many ways behaving as a liquid - with density very dependent on the temperature. With this, a hydrostatic column is formed in the well. For ...
    ... available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs University of Belgrade Faculty of Mining and Geology Final Master Thesis Master Academic Studies ANALYSIS OF THE PROCESS OF CARBON CAPTURE UTILIZATION AND STORAGE IN UNDERGROUND ...
    ... from fuel gas which occurs as a desired component in mixed gases dissolved by chemical and physical solvents and used mostly for precombustion and post combustion[38]. Absorption is a mature and well- established separation method that results in high capture efficiency however the energy cost ...

  • Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++

    Branislava Šandrih, Ranka Stanković (2020)
    U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...
    ekstrakcija terminologije, validacija terminologije, GIZA++, grafovi, Unitex, klasifikacija teksta
    ... input preparation steps as well as processing consist of several com- ponents developed in C# and Python that are interconnected to work in a pipeline. The pipeline relies on existing tools for the extraction of English MWTs (Eng-TE) and Serbian MWEs (Serb-TE) implemented in LeX- imir (Stanković et ...
    ... publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Scientific paper Extraction of Bilingual Terminology using Graphs, Dictionaries and GIZA++ UDC 81’322.2 DOI 10.18485/infotheca.2019.19.2.6 ABSTRACT: In science, industry ...
    ... extractor for a target language and a tool for chunk alignment. We examine the per- formance of the method on a Library and In- formation Science domain. The obtained re- sults, as well as the application that imple- ments the method, are available on-line. KEYWORDS: terminology extraction, terminology validation ...

  • Permanent GNSS monitoring of landslide Umka

    Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)
    Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...
    клизиште, перманентно праћење, ГНСС
    ... Monitoring System), used in order to monitor the dynamics of landslide in real time, with observation rate of 30 seconds. The observed GNSS monitoring results, as well as the correlations between precipitation and Sava river level with landslide dynamics were presented in numerous publications [5-9] ...
    ... tic points of Umka landslide, the second procedure, as well as the obtained results, will be explained in more detail further below. In order to compare the 94 PROCEEDINGS OF INTERNATIONAL CONFERENCE ON CONTEMPORARY THEORY AND PRACTICE IN CONSTRUCTION XIV PERMANENT GNSS MONITORING OF LANDSLIDE ...
    ... 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 91 PROCEEDINGS OF INTERNATIONAL CONFERENCE ON CONTEMPORARY THEORY AND PRACTICE IN CONSTRUCTION XIV PERMANENT GNSS MONITORING OF ...

  • Reconstruction of the Tethys' waning in the Balkans: New insights from Upper Cretaceous igneous formations and zircon provenance data

    Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković (2024)
    geochronology, zircon, provenance
    ... available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs IIerru KoHrpec Ha I eonmoaare Ha PenyOxnaka CeBpHa MakejnoHuja Fifth Congress of Geologists of the Republic of North Macedonia RECONSTRUCTION OF THE TETHYS' WANING IN THE BALKANS: ...
    ... age sequences of the main lithological units in thc basement, we analyzed numerous zircon grains from various basement units. Our results indicate that zircons from both the Dinarides and Europe contain ubiquitous Neoproterozoic (Cadomian) and well-defined Silurian-Ordovician (+Devonian) populations ...
    ... Republic of North Macedonia Neoproterozoic (Cadomian) and well-defined Silurian-Ordovician (+Devonian) populations. However, some important spatially controlled differences appear: Carboniferous (Hercynian) zircons (>300 Ma) are predominant in the Upper Cretaceous clastic sediments from the European ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... domain elements, and implementation of hierarchical data structures in the form of trees. The business logic of the system is implemented in four libraries, two of which are of a general type, and are used in other packages as well. One of them, OpsteKlase_Ver2 provides the business logic for handling ...
    ... selected in the tree on the left hand side. Namely, the data type, the measurement unit, the way in which data are created (by reading, entry, entry for each sub-bench , or reading for each bench, etc.), as well as the maximal range of the data, number of decimals, and its rank for presentation in the ...
    ... is feasible, and described the state of the art in development of RudOnto, as well as the main features of the underlining software solution. 9 Figure 8: The exported OWL code in Protégé 4.2.0 ACKNOWLEDGMENTS The research outlined in this paper was supported by the Serbian Ministry ...

  • 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
    ... are explained in a printed manual that accompanies the software, as well as in a concise on-line context sensitive help. In this section we will briefly describe the WS4LR functionalities which are not directly related to wordnet manipulation, but which can be very useful in performing this ...
    ... code, as well as the list of grammatical categories of the form that appears in the compound lemma. For example, in the compound crno-beli film (black and white movie), the lemma for the constituent form beli is beo. The form of this adjective in the compound lemma is inflected in order to ...
    ... Serbian, where two alphabets, Cyrillic and Latin are equally used. WS4LR enables the exploitation of language resources both in Cyrillic and Latin alphabet, as well as in a special encoding, that uses the ASCII character set and that can be unambiguously transformed into Serbian Latin or Serbian ...

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... additionally had helped in defining precise dimension of release, erosion and deposition zones for better models. Better resolution affected a lot in results about deposition depth, but also on choosing right frictional parameter in rheological model. Method One of well used rheological model ...
    ... 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 Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study Jelka Krušić(1) , Biljana ...
    ... flow material is highly heterogeneous in lithological composition, as well as grain size distribution (up to m 3 boulders) (Fig. 3). Figure 3 UAV images of a) soure area b) transportation zone (April 2017) Proceedings of the 4thSymposium on Landslides in the Adriatic-Balkan Region, Sarajevo ...

  • Threshold-induced correlations in the Random Field Ising Model

    Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević (2018)
    Multidisciplinary
    ... faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 1SCIENTIFIC REPORTS | (2018) 8:2571 | DOI:10.1038/s41598-018-20759-6 www.nature.com/scientificreports Threshold-induced correlations in the Random Field Ising ...
    ... Fig. 1d. Having at hand two well de�ned values, γS T/ (0) and γS T/ (pl), one could interpret the variation of γS/T-values, presented in Fig. 1c, as a possible crossover between these two characteristic values. �e distributions D(Tw) of waiting time Tw, presented in panel a of Fig. 2, are obtained ...
    ... inset of Fig. 1d. Having at hand two well defined values, aff). and fp, one could interpret the variation of 75,;-values, presented in Fig. 1c, as a possible crossover between these two characteristic values. The distributions D(T,,) of waiting time T,, presented in panel a of Fig. 2, are obtained from ...

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... et al.: Availability as a Dimension of Energy Security in the Republic of Serbia 324 THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 In this paper the review the existing literature in the field of energy security is given, as well as the analysis of thematic framework and dimensions of ...
    ... safety. In APERC report on energy security in Asia [7], availability and affordability are merged with acceptability and accessibility, as four main dimensions of energy security, also known as the four As. So called, the four As has become well known throughout the scientific literature in the field ...
    ... the objective of improving values of the presented indicators. Each well-weighed investments in education, building of new energy infrastructure and facilities, as well as improvement of existing one, can only bring benefits in terms of security and quality of life to the whole society. References ...

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... intensively, regularly, and in a structured manner so that it could be learned with the greatest possible economy and result in automaticity as well as grammar knowledge embedded within the lexis. In this way, the rules and patterns may be adapted and reconstructed in novel ways according to learners’ ...
    ... hypothesized that with the use of flashcards and judicious use of L1 in the CLIL environment, our students will have larger amount of quality foreign language input as well as simplified task of learning thousands of items in a meaningful, interesting and effective way. 2. EXPLICIT VOCABULARY ...
    ... 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.rs The Second International Conference on Teaching English ...

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... (Herschel & Jones, 2005). In mining industry KM can play a crucial role in transmission of knowledge between experienced and new workers in order to ensure the safe, competent integration of new workers as well as the retention of aging workers (Gagné, et al., 2011). KM in a business organization ...
    ... down” and “slicing and dicing” (Kolonja et al, 2006). In mine safety it is necessary to follow several attributes related to injuries, perform their multi- dimensional analysis, as well as display data in different forms. Data are presented in the form of OLAP cubes that contains measures and dimensions ...
    ... archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 1 DEVELOPMENT OF A BUSINESS INTELLIGENCE TOOL FOR ACCIDENT ANALYSIS IN MINES Ljiljana Kolonja1, Ranka ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    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 ...
    mathematical content, text processing, mathematical formulae
    ... both in Serbian and English. Thus, there is a possibility of updating terms either only in Serbian, or only in the English, or simultaneously in both languages. Term modification implies changes of the very properties of the term (name, abbreviation, synonyms and description) as well as ...
    ... entire corpus is converted to textual format. As the documents were in different alphabets and encodings, as well as in different formats, a tool was created for preprocessing and normalization of texts into the Latin alphabet. In textual format the corpus contains 1,802,519 simple forms of which ...
    ... 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, ...