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Упит dcterms_subject_txt:expert systems

520 items

  • 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 ...
    ... Adaptable Terminology Acquisi- tion. In Z. Kedad, N. Lammari, E. Métais, F. Meziane & Y. Rezgui (Eds.), Natural Language Processing and Information Systems (Vol. 4592: 420-426): Springer Berlin Heidelberg. Courtois, B., Silberztein, M. (1990). Dictionnaires électroniques du français. Larousse, Paris ...
    ... Compari- son with General Reference Corpus. In C. Hopfe, Y. Rezgui, E. Métais, A. Preece & H. Li (Eds.), Natural Language Processing and Information Systems (Vol. 6177, pp. 248-255): Springer Berlin Heidelberg. Justeson, J. S., & Katz, S. M. (1995). Technical ter- minology: some linguistic properties and ...

  • 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
    ... Unitex, based on LADL format and supporting resources in Unicode has been developed in parallel, and is also available 6 . Since all three systems (Intex, Unitex, and NooJ) provide for processing of texts on basis of dictionaries, in combination with regular expressions and FSTs, and each ...
    ... activate the functions of the Intex, Unitex and/or NooJ system, and select a list of dictionaries he/she wants to use. As none of the three systems offers possibilities for managing the content of dictionaries themselves, the WS4LR dictionary management module has been developed to enable the ...

  • Ostvarivanje dobiti pri uvođenju sistema agregatnih zamena na osnovnoj rudarskoj mehanizaciji površinskih kopova EPS

    Predrag Jovančić, Ignjatović Dragan, Đenadić Stevan (2021)
    Jedan od osnovnih zadataka na površinskim kopovima uglja je ostvarivanje zadovoljavajućeg vremenskog i kapacitetnog iskorišćenja kontinualnih sistema. Da bi se to postiglo, neophodno je izvršiti izmene u postojećoj strategiji održavanja. Preduslov je uvođenje agregatne zamene vitalnih delova na rudarskim mašinama. Benefiti su višestruki. Očekivani rezultati ovakvog pristupa su: smanjenje zastoja i povećanje vremena rada; direktne materijalne uštede; bolja organizacija rada; racionalizaciju radioničkih i magacinskih kapaciteta; povećanje vrednosti mašina. Da bi se uvela agregatna zamena neophodne su investicije za nabavku ...
    agregatne zamene, održavanje, mehanizacija, Benefit Cost analiza

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • Примена беспилотне летелице „Wingtra One“ при решавању геодетско-мерачких задатака на руднику угља „Костолац“

    Милица Лунгић (2024)
    Беспилотне летелице су нашле широку примену у разним гранама индустрије и привреде данашњице, укључујући геодетско-мерачка снимања. Са усавршавањем самог начина подршке хардвера и софтвера, дошло је до могућности у напредовању развоја самих беспилотних летелица. Самим тим се отворила сфера могућности да у релевантно кратком временском периоду дође до самог снимања, обраде и израде поузданих ортофото модела, дигиталних модела надморских висина (ДЕМ), дигиталних модела површи (ДСМ), 3D модела површи.У овом раду је детаљније објашњен сам принцип рада беспилотнелетелице ,,Wingtra One,, ...
    БАС систем, беспилотна летелица Wingtra, план лета, израда модела, рудник угља „КостолацБАС систем, беспилотна летелица Wingtra, план лета, израда модела, рудник угља „Костолац''
    ... HpejIMeT Mepehba. IIocnenpa HHoBanuja y pa3Bojy reoneTckHx ypeljaja Jecy OecrinoTrHu aecpo(bororpaMeTpHJcKH cHcTeMH (BAS) — unmanned aircraft systems — UAS/ unmanned aerial vehicle — UAV) OJHOCHO JIDOHOBH. CHcTeM je TaKaB a HOCeJIyje MOTyhHOCT CHHMaMIba H dororpaQucama H3 Ba3nyXa Kao H MoryhHocT ...
    ... kg, 6e3 orpanuueĐa BHcHHe, Op3uHe MeTa H nonera. Enporcka 3ajenHurta 3a GecnunoTHe Jeremime (eng. European Association of Unmanned Vehicles Systems — EURO UVS) Hanpanuna je nojneJy OccHHJIOTHHX neremima rpeMa caenehaM nep(bopMaHcaMa: BHCHHa JIcTa, Tpajabe neTa, Op3uHa JIeTePba, MaKCHMAaJIHa ...

  • Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima

    Aleksandar M. Mijatović, Jovana Bogojeski (2017)
    Kompleksi Pd(II), supstitucione reakcije

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... and the role of the State Geological Institute. Geol. Q. 35, 207–220. Cole, J.J., Prairie, Y.T., 2014. Dissolved CO2 in freshwater systems? Reference Module in Earth Systems and Environmental Sciences. Elsevier https://doi.org/10.1016/b978- 0-12-409548-9.09399-4 DeAngelis, K.M., Allgaier, M., Chavarria ...
    ... solu- bility of CO2 decreases substantially, thus, water chemistry has a huge impact on the buffering of lignite-originating CO2 emissions. Lake eco- systems are also a habitat of methanotrophic bacteria, whichmay effec- tively reduce methane emissions. However, the majority of mesophilic methanotrophic ...

  • 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

  • Smanjenje sleganja plitkih temelja primenom mikrošipova

    Slobodan Ćorić, Dragoslav Rakić (2021)
    Mikrošipovi su šipovi malog prečnika koji se grade tako što se u tlu specijalni postupkom formira bušotina koja se zatim armira i injektira. Njihov prečnik je najčešće 150 – 300 mm, a dužina može da bude i više desetina metara. Mikrošipovi mogu da se grade u svim vrstama tla i mogu da budu vertikalni i kosi. Oni se, stoga, koriste kao zamena za konvencionalne šipove i ankere. Primena mikrošipova u fundiranju predstavlja jedan savremeni način izgradnje i sanacije temelja/objekata. ...
    mikrošipovi, sleganje plitkih temelja i mikrošipova, krutost tla i mikrošipova

  • Analiza softvera za projektovanje ESP sistema

    Aleksandar Sredojević (2024)
    U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...
    električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim
    ... Slobodan, (2010). „Efikasnost primene sistema potopljenih centrifugalnih pumpi na poljima NIS Naftagas-a“; Novomet, „Powersave ESP Systems“, URL: Powersave ESP Systems (30.08.2024); Paul M., Bommer & A., L., Podio, (2015). „The Beam Lift Handbook“ The University of Texas at Austin; Petroleum ...
    ... Vertical Oil Wells“; Abdlunebi Jasim Kaiser, „ESP Design Electric Submersible Pumps“; Amao Matthew, (2014). „Electrical Submersible Pumping (ESP) Systems“; American Petroleum Institute (1997). „Recommended practice for electric submersible pump testing: API RP 11S2. 2nd ed.“; Artificial Lift Research ...
    ... Edition“, Centrilift, Claremore, Oklahoma; Breit, S., Ferrier N., (2008). „Electrical Submersible Pumps in the Oil and Gas Industry - Using ESP systems for artificial lift“; Bultur _ R., Duran, J., Prado, M. & Pessoa R., (2003). „Analysis of Experimental Data of ESP Performance Under Two-Phase ...

  • Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia

    Оливера Крунић (2021)
    минералне воде

  • The interaction of organoselenium trans-palladium(II) complexes toward small-biomolecules and CT-DNA

    Vera M. Divac, Aleksandar Mijatović, Marina D. Kostić, Jovana Bogojeski (2017)
    Serija organoselenijum trans-paladijum(II) kompleksa 1 (bis(2-(fenilselanilmetil)oksolan)dihloropaladijum(II)), 2 (bis(2-(fenilselanilmetil)oksan)dihloropaladijum(II)) i 3 (bis(2) ,2-dimetil-3-(fenilselanil)oksan)dihloropaladijum(II)) su korišćeni za ispitivanje reaktivnosti ovog specifičnog tipa kompleksa prema različitim bio-molekulima. Ovaj sistem je od posebnog interesa jer se jako malo zna o supstitucionim reakcijam organoselenijum paladijum(II) kompleksa sa trans konfiguracijom. Zamena koordinovanog hlorida sa serijom malih bio-molekula (l-Met, l-His, l-Cis, GSH i 5′-GMP) proučavana je pod uslovima pseudo-prvog reda kao funkcija koncentracije nukleofila i temperature korišćenjem tehnika zaustavljenog toka. Rezultati za proučavane komplekse ukazuju da ...
    Pd(II), Selen, Substitucija, Kinetika, Mehanizam

  • 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
    ... 380–409 Kolonja, Ljiljana, Ranka Stanković, Ivan Obradović, Olivera Kitanović and Aleksandar Cvjetić. “Development of terminological resources for expert knowledge: a case study in mining”. Knowledge Management Research & Practice Vol. 14, no. 4 (2016): 445–456. https://doi.org/10.1057/ kmrp.2015.10 ...
    ... lexical masks, new semantic markers relevant to the field of mining have been integrated (Обрадовић et al., 2017). 2.3 Corpora tools Three different systems for diverse types of usage scenarios are used in this research: – Unitex (Paumier, 2016; Krstev, 2008); – Open Corpus Workbench (OCWB) (Evert and ...
    ... corpus processor with user-friendly interface, language resources distributed out-of- the-box and set of functions that can be used from other software systems. The Unitex NLP engine is based on automata-oriented technology, allowing users to 1) Compile rules and dictionaries as finite-state machines; 2) Use ...

  • Ontološki model upravljanja rizikom u rudarstvu

    Olivera Kitanović (2021)
    Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...
    rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika
    ... Vitomir Milić, Nikola Lilić, Saša Stojadinović, and Igor Svrkota. 2014. “Risk Assessment Model of Mining Equipment Failure Based on Fuzzy Logic.” Expert Systems with Applications 41 (18): 8157–64. Polanyi, Michael. 1964. Personal Knowledge: Towards a Post-Critical Philosophy. Harper Torch Books. ...
    ... 31 (9): 1095–1103. 134 Shu-hsien, Liao. 2003. “Knowledge Management Technologies and Applications—Literature Review from 1995 to 2002.” Expert Systems with Applications 25 (2): 155–64. Škorić, Mihailo, and Mauro Dragoni. 2019. “Medical Domain Document Classification via Extraction of Taxonomy ...
    ... ONTOLOGY-BASED MODEL FOR RISK MANAGEMENT IN MINING Abstract Mining production involves complex technological systems, which calls for the need to create and improve risk management systems. The heterogeneity and scope of data necessary for risk management require a system that integrates them in a ...

  • Optimisation of underground mine decline development system using genetic algorithm

    Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović (2014)
    ... When deposit is composed of few ore bodies it is necessary to interconnect them into one integrated system. There are different development systems (shaft, decline, adit) which can be used to create such system. Suppose the deposit characteristics indicate that decline development system is ...

  • Energetska efikasnost elektromotora na površinskim kopovima

    Snežana Aleksandrović, Ilija Jeftenić (2023)

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... data from expert assessments and studies of international expert organizations were used. The novelty of this paper consists of the following: • Expert assessment of the proposed economic, environmen- tal, socio-political, and technical criteria, as well as the as- sessment of available RES technologies ...
    ... (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive scoring system for differences between values than ...
    ... literature review, expert judgments, and national and international data which deals with the quantitative and qualitative analysis of the utilization of RES for electricity generation. In the parts of the presented assess- ment for which there are no reference data from governmental and expert bodies, data ...

  • Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia

    Fen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • 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

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... is crucial for non-ETS economies where empirical data is limited, and GDP projections with the introduction of carbon pricing are often based on expert estimates or trends observed in other coun- tries. The revenue generated by carbon pricing and how it is reinvested plays a pivotal role in determining ...
    ... Of the total consumption by end-users, EPS sells 99.9% of electrical energy. The separation of operators of the transmission and distribution systems of electricity is executed through the Joint Stock Company “Elektromreža Srbije” (EMS) for the transmission of electricity, which is 100% state-owned ...
    ... ion en.pdf. (Accessed 10 April 2024). Franki, V., Višković, A., 2021. Multi-criteria decision support: a case study of Southeast 'Europe power systems. Util. Pol. 73, 101286. https://doi.org/10.1016/j. jup.2021.101286. Gajić, G., Mitrović, M., Pavlović, P., 2018. Chapter 4 - ecorestoration of fly ...