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Упит dcterms_subject_txt:intervención de pozos petroleros

489 items

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... content is treated as lognormally distributed random variable. The objec- tives of the model include minimizing the expected sulfur content and standard de- viation in sulfur content. The methodology was illustrated using the case study on Kolubara surface coal mine. Key words: stochastic modelling, mine ...
    ... This is good approximation for some bed-blending systems, but it is not a good approximation for most min- eral stockpiling systems. Therefore, we de- scribe prediction of the performance of stock- piling systems for which reclaim slices include unequal amounts of material from the layers of material ...
    ... good cross-section approximation for some bed-blending systems, but it is not a good approximation for most min- eral stockpiling systems. Therefore, we de- scribe prediction of the performance of stock- piling systems for which reclaim slices include unequal amounts of material from the layers of material ...

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... that enables the solution of vari- ous tasks via the web. Besides a short description of the lexical resources for Serbian involved, we shall also de- scribe how the functions of the WS4LR tool can be used for their maintenance and development, as well as some possibilities for web query expansion ...
    ... of vari- ous resources and is already being successfully used for various tasks within the Group. Based on this tool, a web application is now being de- veloped in the Group, under the “working” ac- ronym WS4QE (Workstation for Query Expan- sion) with the aim of enabling the development and usage of ...
    ... other data, of which the most important are the word type, or part-of speech – POS, the definition of the concept, examples of the use of words to de- note the concept, and semantic relations which relate this synset with other synsets. At the end of 2007, PWN contained about 155,000 words organized ...

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... decrease of the O-H stretching; mode at ~3600—3700 cm~-! over 450 *C (de-hydroxylation) and then the formation of forsterite at a temperature over ~500 "C, with the characteristic doublet seen at ~820–-850 cm -1. Complete de-hydroxylation requires heating above ~700 *C. Comparison of the IR patterns ...
    ... 0 - \ -0.25 - 500 Wavenumber / cm" Figure 3. FTIR ATR spectra of samples (a-d) (see Figjure 1) in the silicate framework spectral range; (de) spectrum recorded on extracted asbestos fibers. 3230 3400 3575 ___ ——— s ___ _— d) |--7" - — 3740 d)) c |-- ——· —— — I r — TTAA K_ s Fi 3670 ...
    ... of 18 3.4. OH Groups, Water and Clays Modes characteristic of O-H vibrations are only detected in grain cores (Figure 9), which is ascribed the de-hydroxylation induced by the firing: the bulk temperature of a grain is fixed by the internal reaction until the reaction front has reached its core ...

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... GEMSTONES........ ttt ocabulary. 32737 . OL - .Be. ..0 ... . MM a o -jyO. 0a -M Reading Comprehension...........i a \rarmmar Spof.. . e a av dMe de e a e de a a la Ioarcik89 olo c o b djo o BRIIO OB .y JD - IIIA K Geological Wonders..........i. a Profession – Young Crystallographer.............. ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... ceramic clay de- posits which were formed by erosion and redeposition of the material from the weather- ing crusts [43]; thus, refractory and ceramic clays as an industrial category of clays will be used as well. As in Serbia there are neither properly explored palygorskite-sepiolite de- posits, nor ...
    ... usually different for state-owned/state-controlled minerals and for land owned. Likewise, the mineral resource permitting regimes may be centralized, de- centralized or mixed [5]. All mineral commodities in Serbia are public property of the state. Geological exploration in Serbia is formally divided ...
    ... clays were chosen as an example in this article as they exhibit im- portant relationship between the origin of clays and their quality and morphology of de- posits, and quite a large database of unpublished reports. In this analysis we were using results from numerous geological reports on different industrial ...

  • The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis

    Ljiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua (2021)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • Frequency and Length of Syllables in Serbian

    Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)
    Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.
    frekvencije slogova, dužina slogova, srpski jezik
    ... (2005). Wortlänge. In: Köhler, R., Altmann, G., Piotrowski, R.G. (eds.), Quantitative Linguistics. An International Handbook: 260-273. Berlin, New York: de Gruyter. 21 For the time being, it remains an open question whether this property is generally ...
    ... and systems. In: Köhler, R., Altmann, G., Piotrowski, R.G. (eds.), Quantitative Linguistics. An International Handbook: 305-312. Berlin, New York: de Gruyter. Ladefoged, P., Johnson, K. (2011). A Course in Phonetics. Boston: Wadsworth / Cengage Learning. Lehfeldt, W. (1971). Ein Algorithmus zur ...
    ... Grzybek, P., Jayaram, B.D., Köhler, R., Krupa, V., Mačutek, J., Pustet, R., Uhlířová, L., Vidya, M.N. (2009). Word Frequency Studies. Berlin, New York: de Gruyter. Popescu, I.-I., Naumann, S., Kelih, E., Rovenchak, A., Sanada, H., Overbeck, A., Smith, R., Čech, R., Mohanty, P., Wilson, A., Altmann, G ...

  • Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering

    Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)
    γ-spectrometry, brushite, chukhrovite, phosphogypsum, radionuclides, recrystallization
    ... Caracterizacdo Radioquimica do Fosfogesso e implicacČes radioldgicas de sua utilizacdo como material de construgdo. Dissertacdo. PhD thesis. Instituto de Pesquisas Energćticas e Nucleares, Autarquia Associada š Universidade de Sšao Paulo, Sao Paulo, Portugal (in Portuguese). Sun H., Tan D., Peng ...

  • The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia)

    Saša Ivanišević, Jelena Radišić, Ivana Isić, Dejan Radivojević (2019)
    ... Jelena - jelena.radisic@nis. eu – NIS Gazpromneft, Novi Sad, Serbia, Isić, Ivana - ivana.isic@nis.eu – NIS Gazpromneft, Novi Sad, Serbia, Radivojević, De- jan - dejan.radivojevic@rgf.bg.ac.rs – University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Belgrade, Serbia The ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... Bull. Geol. Inst. Univ. Uppsala, N.S. 14, 129–141. de Bruijn, H., Marković, Z., Wessels, W., Milivojević, M., van de Weerd, A.A., 2018. Rodent faunas from the Paleogene of south-east Serbia. Palaeobiodivers. Palaeoenviron. 98 (3), 441–458. de Leeuw, A., Filipescu, S., Maţenco, L., Krijgsman, W ...
    ... an inverted rift: the Castilian Branch of the Iberian Chain. Tectonophysics 470, 224–242. D’el-Rey Silva, L.J.H., de Oliveira, ́I.L., Pohren, C.B., Tanizaki, M.L.N., Carneiro, R.C., de Fernandes, G.L.F., Aragão, P.E., 2011. Coeval perpendicular shortenings in the Brasília belt: collision of irregular ...
    ... http://refhub.elsevier.com/S0921-8181(21)00299-X/rf0420 Global and Planetary Change 208 (2022) 103714 22 Marković, Z., Wessels, W., van de Weerd, A.A., de Bruijn, H., 2017. On a new diatomyid (Rodentia, Mammalia) from the Paleogene of south-east Serbia, the first record of the family in Europe ...

  • Hazardous substances in karst aquifer waters - one of the results of the operational monitoring of groundwater in Serbia

    Zoran Stevanović, Veljko Marinović, Branislav Petrović (2020)
    У циљу оцене стања животне средине и разумевања потенцијалних узрока још раније евидентираног лошег хемијског статуса водног тела подземних вода „Крш–север“, извршенa je хидрогеолошка проспекција шире околине лежишта бакра Мајданпек, која је укључилаистраживање површинског копа, флотационог језера и главних карстних врела и пећина. Имајући у виду да се експлоатационо поље рудника бакра Мајданпек директно граничи са карстном издани и водним телом подземних вода „Крш–север“, параметри квалитета подземне воде су анализирани (in situ и лабораторијски) на два главна карстна врела ...
    Опасне супстанце, карстна издан, бакар, флотацијско језеро, Мајданпек, Србија

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... language EN BG DE CS DA EL ES ET FI FR HU IT LT LV MT NL PL PT RO SK SL SV EN – 40.5 46.8 52.6 50.0 41.0 55.2 34.8 38.6 50.1 37.2 50.4 39.6 43.4 39.8 52.3 49.2 55.0 49.0 44.7 50.7 52.0 BG 61.3 – 38.7 39.4 39.6 34.5 46.9 25.5 26.7 42.4 22.0 43.5 29.3 29.1 25.9 44.9 35.1 45.9 36.8 34.1 34.1 39.9 DE 53.6 26.3 ...
    ... well as in the names of university de- partments where this instruction was formerly held: for these languages, hence for the Serbian language (and lit- erature) as well, distinct curricula and diplomas now ex- ist, with various combinations of subjects, whereas de- partments now have collective names ...
    ... Modern Languages, Univ. of Helsinki: Kimmo Koskenniemi, Krister Lindén Француска France Centre National de la Recherche Scientifique, Laboratoire d’Informatique pour la Mé- canique et les Sciences de l’Ingénieur and Institute for Multilingual and Multimedia In- formation: Joseph Mariani Evaluations and ...

  • Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)

    Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick (2024)
    Triassic, Carnica event, clay mineralogy, conodont biostratigraphy, Neo-Tethys

  • Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel (2016)
    General Earth and Planetary Sciences
    ... 4056 Basel, Switzerland Faculty of Mining and Geology, University of Belgrade, Belgrade 11000, Serbia Section des Sciences de la Terre et de P Environnement, Universitć de Genčve, 1205 Geneva, Switzerland is limited to spaced and crenulation cleavage, which are probably related to formation of ...
    ... Gondwana Res 27:760—775. doi:10.1016/j.gr.2014.08.008 Borsi S, Ferrara G, Mercier J (1965) Dćtermination de lI'ige des sćries mćtamorphiques du Massif Serbo-Macćdonien au Nord-Est de Thessalonique (Grčce) par les mćthodes Rb/Sr et K/Ar. Ann Soc Gćol Nord 84:223-225 Bosse V, Boulvais P, Gautier ...
    ... of magmatic ages, the width of the bar represents 2o uncertainty). See text for details * Hornblende [] Muscovite < Botite 8 Al ti tu de [m ] 200 deformation, as the Gabrov Dol zone was formed under greenschist facies conditions and it unequivocally separates high-grade from ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... than 5 million forms and 13,000 compound lemmas, that is, multi-word units (Krstev, 2008). The number of simple lemmas by Part-Of-Speech (POS) is de- picted in Figure 2 (left). Figure 2: Statistics of lemmas and inflectional FSTs Inflectional classes are described with metadata including ...
    ... Quochi, V., Frontini, F., & Rubino, F. (2012). A MWE Acquisition and Lexicon Builder Web Ser- vice. Proc. of COLING 2012 (pp. 2291-2306). Ramisch, C., De Araujo, V., & Villavicencio, A. (2012). A broad evaluation of techniques for auto- matic acquisition of multiword expressions. Proc. of ACL 2012 Student ...

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... construction. Materiales de Construcción, 57, pp. 77–89. FAVARO M. et al. (2006) Evaluation of polymers for conservation treatments of outdoor exposed stone monuments, Part I. Photo-oxidative weathering. Polymer Degradation and Stability, 91, pp. 3083–3096. FORT R., DE BUERGO M. A. and PEREZ-MONSERRAT ...
    ... Engineering Geology, 77, pp. 153–168. TRINDADE R. M. P. et al. (2010) An Interval Metric. In: New Advanced Technologies. InTech. VALDELON L., DE FREITAS M.H. and KING M.S. (1996) Assessment of the quality of building stones using signals processing procedures, Quarterly Journal of Engineering ...

  • Хазард од клизишта у Србији у 21. веку

    Biljana Abolmasov (2019)
    клизишта, хазард од клизишта, промене климе
    ... ¶uri� U., Ze¥evi� S. (2013). Impact of ge factors on landslide susceptibility using an AHP method: A case s Gora Mt., Serbia. Annales Geologiques de la Peninsule Balkanique 74: 91�100. [23] Marjanovi�, M., Kova¥evi�, M., Bajat B., Mihali�, S., Abolmasov, B. (2011). L Assessment of Star¥a Basin ...
    ... Abolmasov B., Quri U., Ze¥evi S. (2013). Impact of g factors on landslide susceptibility using an AHP method: A case Gora Mt., Serbia. Annales Geologiques de la Peninsule Balkanique Marjanovi , M., Kova¥evi , M., Bajat B., Mihali , S., Abolmasov, B. Assessment of Star¥a Basin (Croatia) Using Machine Learning ...
    ... scientific researc the type of movement more common types are slides, flows and falls. type of material involved there are all types of material: rocks, de Landslides can be caused by one or more factors of which mo geological and engineering geological are main causal factors. G terrain characteristics ...