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Упит dcterms_subject_txt:General Materials Science

841 items

  • History of meteorite donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia)

    Alena Zdravković, Maja Milošević, Kristina Šarić, Ivana Jelić, Ana Černok (2021)
    ... where it was found – Sokobanja, in central- eastern Serbia. One of those who investigated the fall was Prof. Josif Pančić (1814-1888), a natural science professor at the Great School of Belgrade (Beogradska Velika Škola), the precursor of University of Belgrade. A series of subsequent meteorite falls ...

  • An oilfield in Libya: A new model to enhance waste water disposal

    Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković (2016)
    нафта, лежишне воде, припрема

  • Чији је пример? Анализа лексичких обележја на примерима Речника САНУ

    Бранислава Б. Шандрих, Ранка М. Станковић, Мирјана С. Гочанин (2019)
    У овом раду поставља се питање: да ли се може утврдити ко је аутор неког текста уколико се анализирају искључиво његова лексичка обележја? Како бисмо покушали да добијемо одговор на ово питање, посматрали смо примере у оквиру речничког чланка појединачне лексеме Речника САНУ, који су забележени у пет томова (и то: I, II, XVIII, XIX и XX). Сваки пример је преузет из неког извора на шта упућују скраћенице, наведене у заградама. Од преко 5.000 понуђених извора, определили смо се ...
    идентификација ауторства, лексичка обележја, анализа обележја, примери Речника САНУ
    ... Branislava B. Šandrih, Ranka M. Stanković, Mirjana S. Gočanin WHOSE EXAMPLE IS IT? FEATURE ANALYSIS OF EXAMPLES FROM DICTIONARY OF SERBIAN ACADEMY OF SCIENCE AND ARTS Summary The question we ask ourselves in this paper is the following: Is it possible to determine who is the author of a text by analyzing ...
    ... answer, we observed examples that support lexical entries listed in five of the total of twenty volumes of the Dictionary of Serbian Academy of Science and Arts. Each dictionary example is documented with its author, so we decided to examine only examples that origin from twelve great names in the ...

  • Multi-word Expressions for Abusive Speech Detection in Serbian

    Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev (2020)
    Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...
    uvredljiv govor, govor mržnje, leksički izvori, višejezični leksikon, izrazi sa više reči
    ... Ministry of Education, Science and Technological Development of the Repub- lic of Serbia and Deutcher Akademischer Austauschdienst - DAAD, Project years 2020-2021, Cross-Lingual Hate Speech Detection, and COST Action CA18209 - European network for Web-centred lin- guistic data science. 83 References ...
    ... adjective expressions. However, none of the dictionary entries were labeled specifically for hate speech and abusive language detection (except with general markers for derogatory or pejorative usage, as mentioned in Subsection 4.1). Our aim was to enrich SrpMD with new MWEs related to abusive language ...
    ... Miljana Mladenović, and Cvetana Krstev. 2015. Adding mwes to serbian lexical resources using crowdsourcing. In poster presented at The 5th PARSEME general meeting. Ias, i, Romania, pages 23–24. Jelena Mitrovic, Cliff O’Reilly, Randy Allen Harris, and Michael Granitzer. 2020. Cognitive modeling in compu- ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... 6 Received: 21 December 2017; Accepted: 7 February 2018; Published: 14 February 2018 Abstract: The explosion caused by detonation of explosive materials is followed by release of a large amount of energy. Whereby, a greater part of energy is used for rock destruction, and part of energy, in the form ...
    ... [18]. Three blasting operations were performed. Balkanit 60/1000 and Videksil 65/2000 (Videks Company, Sofia, Bulgaria) were used as explosive materials. The activation of explosives in boreholes was performed using detonating fuse C-12, while initiating of detonating fuse was performed with blasting ...
    ... in Nepričava open pit, located in central Serbia. Minerals 2018, 8, 70 9 of 18 4.1. Experimental Investigation in Majdanpek Open Pit 4.1.1. General Characteristics of the Work Environment in Majdanpek Open Pit In Majdanpek open pit we performed experimental investigations on copper ore [17]. The ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... simple lemmas belong to general lexica, while the remaining 34,000 lemmas represent various kinds of simple proper names [11]. The Bulgarian Grammar dictionary (DELAS dictionary) consists of 127,000 lemmas distributed as follows: app. 85,000 simple lemmas belong to general lexis, app. 6,000 lemmas ...
    ... of Compounds and Phrases. Polibits (37) 2008, Special section: Natural Langugage Processing, Journal of Research and Developement in Computer Science and Engeneering, ed. Grigori Sidorov, Centro Innovacion y Desarrollo Tecnologico en Computo, Instututo Politecnico Nacional, Mexico, pp. 14-20 ...
    ... Traitement automatique des langues, Vol. 47-3, 2006. [20] D. Tufiş (ed.). Special Issue on BalkaNet Project, Romanian Journal on Information Science and Technology. Bucureşti: Publishing house of the Romanian academy, Vol. 7, No.1-2, 2004. [21] D. Tufiş, S. Koeva, T. Erjavec, M. Gavrilidou ...

  • A Lexical Approach to Acronyms and their Definitions

    Cvetana Krstev, Duško Vitas, Ranka Stanković (2015)
    In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.
    ... research was supported by the Serbian Ministry of Education and Science under grants 47003 and 178003. 6. References Jacobs, K., A. Itai, and S. Wintner, 2014. Acronym Dic- tionary Construction and Disambiguation (abstract). 3rd Parseme General Meeting – Poster Session. Krstev, C., R. Stanković, I. ...
    ... fifth to tenth abstract, more than 80% of acronyms are ambiguous, and some of them have as much as 15 interpretations. Although the ambiguity in general language may not be as high, many acronyms have several interpretations, for instance RAF – Kraljevsko ratno vazduhoplovstvo ‘Royal Air Forces’ and ...
    ... of known acronyms and their definitions is incorporated into existing electronic lexicons. Although most of the research on acronyms focuses on general texts (e.g. newspapers), significant work was done for specific domains, especially biomedical (Schwartz and Hearst, 2003; Pustejovsky et al., 2001; ...

  • A necessary and sufficient condition for an algebraic integer to be a Salem number

    Dragan Stankov (2019)
    We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • 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

  • Репозиторијум дигиталних идентификатора објеката – доиФил: изградња, стање и перспективе

    Милош Утвић, Михаило Шкорић (2017)
    Филолошки факултет Универзитета у Београду је крајем јула 2015. године склопио уговор са агенцијом Crossref и тиме стекао право да својим публикацијама додељује дигитални идентификатор објекта (DOI), као и публикацијама других издавача које заступа. Истовремено, у склопу уговора, Филолошки факултет је развио репозиторијум доиФил који за све регистроване публикације чува њихове библиографске метаподатке, хипервезу ка комплетном тексту и сам DOI. После припремних радњи и разраде процеса на којима је заснован рад репозиторијума, у новембру 2016. године је репозиторијум доиФил ...
    DOI, дигитални идентификатор објекта, Crossref, Филолошки факултет
    ... support, editors, authors), a special role in the development of the repository has a Department of Library and Information Science. The anniversary of teaching library science at university level in Serbia is an opportunity to discuss the construction, state and perspectives of the repository doiFil ...
    ... електронских библиографија, видети, на пример, https://github.com/aurimasv/translators/wiki/RIS-Tag-Map. 11 Patashnik, Oren. BibTEXing, Documentation for general BibTEX users. 1988. http:// mirrors.ctan.org/biblio/bibtex/base/btxdoc.pdf (преузето 1.3.2019). 12 Утвић, Милош. BibTeX - креирање персоналних биб ...
    ... and. Имена се пишу на писму публикације, док се and обавезно пише латиницом. Title наслов чланка 13 Patashnik, Oren. BibTEXing, Documentation for general BibTEX users. 1988. http:// mirrors.ctan.org/biblio/bibtex/base/btxdoc.pdf, стр. 9–11 (преузето 1.3.2019). 84 BIBLIOINFO Pages почетна и завршна ...

  • Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta

    Vesna Cvetkov (2020)
    ... Arheološki institut, Beograd: 63-65. Mullins, C. E. 2006. Magnetic suscep- tibility of the soil and its significance in soil science-a review. European Journal of Soil Science 28, 2: 223-246. Mušič, B. 1999. Geophysical prospe- cting in Slovenia: an overview with some observatons related to the natu- ...
    ... magnetic data over settlement structures by inverse modelling. Archaeological Prospection 4, 4, Special Issue: Europen Geophysical Society XXII General Assemgly: 165- 177. Eppelbaum, L. V., Khesin, B. E, Itkis S. E. 2001. Prompt magnetic investiga- tions of archaeological remains in areas of inf ...

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... with geological environments and groundwater, a phenomenon that becomes increasingly pronounced during long-term operation. Section snippets General characteristics of the HPP Pirot system Hydropower plant (HPP) Pirot is situated in the southeastern part of Serbia and utilizes Wwater from the ...
    ... relationships that could have appeared to influence the work reported in this paper. Acknowledgement This work was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Grant Nos. 451-03–-66/2024-03/200126 and 451–03- 65/2024-03/200126). References ...

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 1492–1501 King, B, 2011, Optimal mining practice in strategic planning, Journal of Mining Science, vol. 47, str. 247-253. Kirkpatrick, S., Gelatt Jr, C. D., Vecchi, M. P., 1983, Optimization by Simulated Annealing, Science, vol. 220, str. 671–680. Knežević, D., Kolonja, B., Tomašević, A.,, Nišić, D., (2014) ...
    ... and Metallurgy, vol. 110, str. 571-579 Consuegra F.R.A., 2010, Exploring stochastic optimization in open pit mine design, Department of Mining and Materials Engineering, McGill University, Montreal Coombes J, 2004, Resource Estimation, Snowden Mining Industry Consultants Cowan E.J, Beatson R.K, Ross ...
    ... Erarslan, K. and Celebi, N., 2001, A simulative model for optimum open pit design. CIM Bulletin., Vol. 94, str. 59 – 68. Erasmus J. H., 1995, Bulk Raw Materials Storage Selection, http://www.beltcon.org.za/docs/b1111.pdf Erdem, Ö., Güyagüler T., and Demirel, N., 2012. Uncertainty assessment for the evaluation ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 1492–1501 King, B, 2011, Optimal mining practice in strategic planning, Journal of Mining Science, vol. 47, str. 247-253. Kirkpatrick, S., Gelatt Jr, C. D., Vecchi, M. P., 1983, Optimization by Simulated Annealing, Science, vol. 220, str. 671–680. Knežević, D., Kolonja, B., Tomašević, A.,, Nišić, D., (2014) ...
    ... and Metallurgy, vol. 110, str. 571-579 Consuegra F.R.A., 2010, Exploring stochastic optimization in open pit mine design, Department of Mining and Materials Engineering, McGill University, Montreal Coombes J, 2004, Resource Estimation, Snowden Mining Industry Consultants Cowan E.J, Beatson R.K, Ross ...
    ... Erarslan, K. and Celebi, N., 2001, A simulative model for optimum open pit design. CIM Bulletin., Vol. 94, str. 59 – 68. Erasmus J. H., 1995, Bulk Raw Materials Storage Selection, http://www.beltcon.org.za/docs/b1111.pdf Erdem, Ö., Güyagüler T., and Demirel, N., 2012. Uncertainty assessment for the evaluation ...

  • Using Lexical Resources for Irony and Sarcasm Classification

    Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković (2017)
    The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...
    ... best results of this classifier (acc = 86.1%), for values tp = 144, f p = 66, f n = 175, tn = 1, 347. Downsides of this type of classification, in a general case, lie in the limited nature of the resources (sentiment lexicon, set of rules used in generating antonymous pairs, WordNet ontology) that are being ...
    ... Krstev University of Belgrade, Faculty of Philology Belgrade, Serbia cvetana@matf.bg.ac.rs Jelena Mitrović University of Passau, Faculty of Computer Science and Mathematics Passau, Germany jelena.mitrovic@uni-passau.de Ranka Stanković University of Belgrade, Faculty of Mining and Geology Belgrade, Serbia ...
    ... students at the University of Belgrade for manual classifi- cation of tweets. This research was partially supported by Serbian Ministry of Education and Science under the grants #III 47003 and 178003. REFERENCES [1] Salvatore Attardo. 2000. Irony markers and functions: Towards a goal-oriented theory of irony ...