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Упит dcterms_subject_txt:equipment selection

240 items

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • 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
    ... which exist in other wordnets, such as Balkan specific concepts. WS4LR also offers substantial aid in solving the second task, namely, the selection of synonymous words for the synset, and the assignment of meanings to these words. Although it is reasonable to assume that the wordnet developer ...

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...
    ... before, they were not digitized in the proper manner or were not available (Krstev et al., 2019). This preparation procedure involved several steps: selection of novels, retrieval of hard co- pies, scanning, OCR, automatic correction of OCR errors (for which a specialized tool ba- sed on the Serbian mor ...

  • 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
    ... the preliminary PSInSAR analysis. Standard procedure was applied for the extraction of master and slave images, co-registration, sparse point selection, APS estimation and Multi-temporal analysis of both radar datasets. After preliminary analysis, 4429 sparse Fig. 3 UAV flight area (2018) Results ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... composition, the samples from the Drenjak locality were selected for further TEM analyses (additional explanation and rationale regarding, the selection of the samples can be found in Supplementary Information File S1). Additionally, the samples from this locality are composed of crystals large ...

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... social media. Social media statements are often context specific, and their interpretation can be highly subjective. Forensic application of a selection of stylistic and stylometric techniques in a simulated authorship attribution case involving texts has been done in relation to Facebook.7 Analysis ...

  • 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
    ... Multi- media Document 2014/2015 enabled all of us to express our interests and skills. On the other hand, the downside was the extent of the topic. Selection and organization of information represented a great challenge. We have invested effort to select the most important information and represent it in ...

  • Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities

    Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov (2024)
    Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...
    полилексемске језинице, именовани ентитет, вишезначност значења речи, складиште смисла, LLOD

  • Димензионисање система завојних пумпи

    Марија Дивац (2024)
    Овај завршни рад се бави димензионисањем система завојних пумпи (Progressive Cavity Pumps - PCP) које се широко користе у нафтној и гасној индустрији, нарочито за подизање тешких и вискозних флуида. Завојне пумпе су се показале као ефикасно решење у бушотинама са сложеним условима,захваљујући својој способности да транспортују флуиде са високим садржајем чврстих честица и гаса.Рад обухвата анализу кључних параметара као што су вискозност, густина, дубина бушотине и притисак, који су пресудни за избор одговарајуће пумпе.Применом софтверског алата извршена је ...
    завојне пумпе, димензионисање, експлоатација нафте, вискозни флуиди, софтверска симулација, PCP пумпе
    ... enekpuuHoe Ka0a Motor Power: 22 kW Motor Line Current in amps: 38.9 Motor Phase Current in amps: 22.46 Starter Type: Star/Delta Circuit Breaker Selection: 40 A MMain Contactor Size: 38 A Delta Contactor Size: 38 A Star Contactor Size: 25 A Overioad Relay Size: 18 to25 Amps Required Cable Size: ...

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... Multi Element External Coal Transportation on Reliability of the System and on Environment, 9th International Symposium on Mine Planing and Equipment Selection, Athens, 2000, 569-572. 172 5. Ristović I, Kneţević G, Grujić M. Endanger of Fluvial Ecosystem Due to Mining Activities on the ...
    ... , YU forum kvaliteta, Tara, 2002, 270-273. 7. Ristović I, Grujić M. Some Aspects of Steel Wire Ropes Use for Discontinuous and Auxiliary Equipment in Open-pit Mines, TU Košice, Slovačka, 2002, 215-223. 8. Grujić M, Zdravković M, Tomić M. Ekološke prednosti daljinskog grejanja u Beogradu ...
    ... different options to meet future needs. Using the “bottom-up” approach this dissertation sets the model of multi-criteria decision making for selection of the optimal option of energy development, which treats 8 economic, energy and environmental criteria. The proposed model does not consider the ...

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... terminology has been an ongoing activity at the UBFMG for several years now. It started with research related to the development of an ontology of mining equipment [19], in line with other research aimed at development of bilingual lexical resources [20]. The focus was then turned to development of termbases ...
    ... cal resource, mostly handcrafted, was also developed to support knowledge management in specific subfields of mining engineering, such as mining equipment, mine safety and geostatistics [22]. A thesaurus of mining terminology is available online, but it is not systematically updated. Moreover the application ...
    ... of Mining and Geology]: Beograd, Srbija, 2020; Draft Version. 19. Stanković, R.M.; Obradović, I.; Kitanović, O.; Kolonja, L. Towards a mining equipment ontology. In Proceedings of the 12th International Conference ‘Research and Development in Mechanical Industry’ (RaDMI 2012), Vrnjačka Banja, Serbia ...

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)
    ... required energy is added by introducing an artificial lift method. In order to achieve optimal production, the selection of the artificial lift method have an important role. Optimal selection method achieves the economical production. By introducing new tools developed on the basis of artificial in ...
    ... planning. Applied Engineering Letters, 2 (4), p. 130-138. [3] Lukić, D., Milošević, M., Antić, A., Borojević, S., Ficko. M. (2017). Multi- criteria selection of manufacturing processes in the conceptual process planning. Advances in Production Engineering and Management , 12 (2), p. 151-162. [4] Novakovic ...
    ... in oil and gas drilling technology in Vojvodina is a solid basis for drilling geothermal sources. The paper presents the initial results of the selection of proportional hydraulic systems and valves on the technical improvement of existing sets. The paper opens multidisciplinary possibilities for ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... expansion is based on the use of morpho- logical dictionaries of simple words and compounds. A pos- sibility of morphological expansion, by a simple selection of the appropriate checkbox, is offered to the user within each form related to query formulation. If that morphological ex- pansion is selected ...

  • 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
    ... on Intelligent Text Processing and Computational Linguistics (CICLING2016), LNCS. Springer, 2016 Hazem, Amir and Emmanuel Morin. “Efficient Data Selection for Bilin- gual Terminology Extraction from Comparable Corpora”. In Proceedings of COLING 2016, the 26th International Conference on Computational ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations

    Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina (2023)
    Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... is a good tool in the decision-making process, especially in terms of equipment selection. Risk assessment can be used in terms of project management [19]. Ataei et al. have used fuzzy logic theory and fuzzy rules in the selection of machinery in underground coal mines [20]. Kabir and Papadopoulos [21] ...
    ... used to analyze occupational health and safety [9–11], for risk assessments of various equipment failures [12], for a pipeline risk assessment [13], for a deepwater drilling riser [14], and in mining equipment [15]. It has also been used in Risk Based Maintenance (RBM) [16–18]. In addition, fuzzy ...
    ... proposed model, is the absence of empirical data. Some companies did not develop the data acquisition system for the time picture state of the equipment in use. In such conditions, this model is impossible to apply in its present form and it is necessary to implement the data as expert opinions. A ...

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... редовни професор IGNJATOVIĆ, D., RISTOVIĆ, I., STOJAKOVIĆ, M., 2000: The methodology of the selection of auxiliary mechanisation for the open pit mines of lignite. Mine Planning and Equipment Selection 2000, str. 577–581. IGNJATOVIĆ, D., MANESKI, Т., JOVANČIĆ, P., 2004: Dijagnostika konstrukcije ...
    ... of Underground Mining in Existing “Ćirikovac” Opencast Lignite Mine. Proceedings of Fifteenth International Symposium on Mine Planing and Equipment Selection, 20th-22nd September, Torino, Italy, pp. 9–14. ČOKORILO V., LILIĆ N., DENIĆ M., MILISAVLJEVIĆ V., 2009: New Štavalj Coal Mine and Thermal ...
    ... TRAJKOVIĆ S., LUTOVAC S., RAVILIĆ M., 2013: Determination of Safe Distance While Blasting at Open Pit Mine Zabrdica, Valjevo. Mine Planning and Equipment Selection, Proceedins of the 22nd MPES Conference, Dresden, Germany, October 2013. Volume 1, pp. 749–758. TRAJKOVIĆ S., LUTOVAC S., RAVILIĆ M., BAJIĆ ...