Претрага
951 items
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Polimerne smole sa efektom pene i njihova primena u rudarstvu
Trifunović Prvoslav, Tokalić Rade, Vidanović Nebojša, D. Marković. "Polimerne smole sa efektom pene i njihova primena u rudarstvu" in Mining and Metallurgy Engineering no. 3, Bor:Institut za rudarstvo i metalurgiju Bor (2015): 157-163
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Synchronization of the minimal models of bursting neurons coupled by delayed chemical or electrical synapses
Vasović Nebojša, Burić Nikola, Todorović Kristina, Grozdanović Ines. "Synchronization of the minimal models of bursting neurons coupled by delayed chemical or electrical synapses" in Chinese Physics B 21 no. 1, Kina:Chinese Physics B (2012): 1-8
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Coupled stochastics oscillators with delays in couplin
Grozdanović Ines, Burić Nikola, Todorović Kristina, Vasović Nebojša. "Coupled stochastics oscillators with delays in couplin" in Math. Inform 27 no. 1, Niš:Facta Universitati (2012)
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Hidrogeologija ležišta bakra i zlata Čukaru Peki – od istraživanja do eksploatacije
Podzemne vode, Mineralne sirovine, Rudnička hidrogeologija, Odvodnjavanje rudnika, Timočki magmatski kompleksNebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Jelena Davidović. "Hidrogeologija ležišta bakra i zlata Čukaru Peki – od istraživanja do eksploatacije" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Coal cleaning before combustion – practice and experience in Serbia
Milena Kostović, Ivana Simović, Nebojša Kostović, Nina Pantelić. "Coal cleaning before combustion – practice and experience in Serbia" in Underground Mining Engineering, University of Belgrade, Faculty of Mining and Geology (2022)
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Geomechnical research for the new bucket wheel excavator testing at Open pit “Filijala”
Since 1976 cement marl excavation at open-pit mine „Filijala” is carried out by continuous exploitation technology using bucket wheel excavator SH 400 manufactured by Orenstein und Koppel (O & K) company. Due to the bucket wheel excavator time-worn and high operating cost it was necessary to replace it with new one. In order to test the new bucket wheel excavator and prove its capacity a testing zone was defined as test block for excavation, in which the bucket wheel ...Vladimir Čebašek, Nebojša Gojković, Veljko Rupar, Miodrag Pribićević. "Geomechnical research for the new bucket wheel excavator testing at Open pit “Filijala”" in Рударски гласник, Рударски институт - Београд (2020). https://doi.org/10.25075/BM.2020.07
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Mogućnost korelacije zatezne čvrstoće i dinamičkih svojstava belog venčačkog mermera
Zatezna čvrstoća se koristi pri dimenzionisanju komora (raspona između stubova), određivanju rezne sile na bagerima, izračunavanja efekata miniranja itd. Iskustvo je pokazalo da zatezna čvrstoća stena predstavlja 10-15% jednoosne č vrstoće na pritisak. Za preciznije određivane ovog parametra pristupa se laboratorijskim ispitivanjima, direktim ili indireknim metodama. U ovom radu su prikazana ispitivanja zatezne čvrstoće indirektnom metodom na uzorcima belog meremera ležišta Venčac. Pre utrđivanja zatezne čvrstoće, na svakom probnom telu izvršeno je merenje brzine longitudinalnih elastičnih talasa. Na osnovu ...Jelena Majstorović, Vladimir Čebašek, Veljko Rupar, Nebojša Gojković. "Mogućnost korelacije zatezne čvrstoće i dinamičkih svojstava belog venčačkog mermera" in Inženjerski problemi u mekim stenama - Druga konferencija regionalnih geotehničkih društav, Specijalizovana konferencija ISRM-aa, Друштво за геотехника на Македонија (2022)
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Analiza pogonskih sistema rotornog točka na bagerima SRS-2000 sa ciljem unifikacije
Predrag Jovančić, Dragan Ignjatović, Nebojša Gnjatović, Srđan Bošnjak. "Analiza pogonskih sistema rotornog točka na bagerima SRS-2000 sa ciljem unifikacije" in XIII Međunarodna konferencija OMC 2018 Zlatibor, 17.-20. oktobar 2018., Belgrade : Yugoslav Opencast Mining Committee (2018)
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Early Senonian radiolarian microfauna and biostratigraphy from the Western Vardar Zone (Western Serbia)
Nevenka Djerić, Nataša Gerzina, Violeta Gajić, Nebojša Vasić. "Early Senonian radiolarian microfauna and biostratigraphy from the Western Vardar Zone (Western Serbia)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2009). https://doi.org/10.2478/v10096-009-0004-5
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Petrological and geochemical studies of lignite from the Tamnava West field, Kolubara basin (Serbia)
Milena Pajić, Reinhard F. Sachsenhofer, Achim Bechtel, Ksenija Stojanović, Vladimir Krstić, Dragana Životić (2021)... threc coal seams. The twenty four (24) representative samples originating from borehole PE/Pgh-127.5 from the main coal seam (depth interval] 60.3-88.2 m) were analysed. Coal from the Tamnava West field is typical humic coal with high huminite. lowerliptinite and low inertinite content. Textinite, ulminite ...
... compoundsexpectable for immature terrestrial organic matter (OM), Diterpenoids are the main constituents of saturated fractions with variable amount of m- alkanes and hopanoids. Content of sesquiterpenoids, triterpenoids and steroids in saturated fracttons is low. Aromatic fraction ıs characterised by ...Milena Pajić, Reinhard F. Sachsenhofer, Achim Bechtel, Ksenija Stojanović, Vladimir Krstić, Dragana Životić. "Petrological and geochemical studies of lignite from the Tamnava West field, Kolubara basin (Serbia)" in 72nd Annual Meeting of the International Commitee for Coal and Organic Petrology (ICCP), The Prague, Chech Republic, 19th – 25 th September, ICCP (2021)
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Uticaj nestacioniranih procesa u magistralnom gasovodu na proizvodnju gasa iz uglja
Vojislav Vuletić (1985)Vojislav Vuletić. Uticaj nestacioniranih procesa u magistralnom gasovodu na proizvodnju gasa iz uglja, Beograd:Rudarsko Geološki Fakultet, 1985
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Rule-based Automatic Multi-word Term Extraction and Lemmatization
In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...... term extraction. Proc. Of the Natural Language Processing and Knowledge Engineering, 2009. NLP-KE 2009, pp. 1--8. Broda, B., Derwojedowa, M., and Piasecki, M. (2008). Recognition of structured collocations in an inflective language. Systems Science, 34, pp. 27--36. Chen, J., Yeh, C. H., and Chau ...
... D., Popović, Lj., Krstev, C., Obradović, I., Pavlović-Lažetić, G. and Stanojević, M. (2012). The Serbian Language in the Digital Age. Berlin; Springer-Verlag. 8. Language Resource References Vitas D., Utvić M. (2015). SrpKor22M, Serbian automatically lemmatized, PoS and morphosyntactically ...
... On-Line Resources to Build a Lexicon, Hillsdale, NJ: Lawrence Erlbaum Associates, pp. 115--164. Kilgarriff, A., Baisa, V., Bušta, J., Jakubíček, M., Kovář, V., Michelfeit, J., Rychlý, P., Suchomel, V. (2014). The Sketch Engine: ten years on. Lexicography 1(1), pp.7--36. Dunning, T. (1993). ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac. "Rule-based Automatic Multi-word Term Extraction and Lemmatization" in Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016, Portorož, Slovenia, 23--28 May 2016, European Language Resources Association (2016)
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Environmental Energy Security Indicators as Tools for Environmental Protection
Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост... (2015), Održivi razlozi: ekonomsko-ekološki izozavi, Tehnološko- metalurški fakultet, Beograd. 23. Madžarević, A., Ivezić, D., Živković, M., Tanasijević, M., Ivić, M., Assessment of vulnerability of natural gas supply in Serbia: State and perspective, Energy Policy, 2018, Volume 121, pp. 415-425 ...
... appropriate stage composition with a ranked outcome. The synthesis model is presented in optimal form according to the partial (Pi) and synthetic (M) indicator. M = E; P1 = E1, P2 = E2, P3 = E3 (2) This has been done by tailoring the model in several steps (Figure 1). During the process, data is collected ...
... medium high very high 9 REFERENCES 1. Radovanovic, M., Filipovic, S., Pavlovic, D., Energy security measurement – A sustainable approach, Renewable and Sustainable Energy Reviews, 2017, Volume 68, 2017, pp. 1020–1032 2. Golušin, M., Munitlak-Ivanović, O., Andrejević, A., Vučenov, S., Survey ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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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.... Table 1. Graphemic representation of phonemes in Serbian language vowels a(а), e(е), i(и), o(о), u(у) consonants sonorants j(ј), l(л), lj(љ), m(м), n(н), nj(њ), r(р), v(в) obstruents b(б), c(ц), č(ч), ć(ћ), d(д), dž(џ), đ(ђ), f(ф), g(г), h(х), k(к), p(п), s(с), š(ш), t(т), z(з), ž(ж) Two ...
... research projects APVV SK-SRB-2016-0021 (M. Radojičić, B. Lazić, R. Stanković, J. Mačutek, L. Leššová) and VEGA 2/0054/18 (J. Mačutek, L. Leššová). REFERENCES Altmann, G. (1983). H. Arens’ “Verborgene Ordnung” und das Menzerathsche Gesetz. In: Faust, M., Harweg, R., Lehfeldt, W., Wienold, G ...
... are classified as plosives (their graphemic representations are b, p, d, t, g, k), affricates (c, č, ć, dž, đ), fricatives (f, z, s, ž, š, h), nasals (m, n, nj), laterals (l, lj), a vibrant (r) and semivowels (v, j). The Serbian language uses two alphabets: Latin and Cyrillic. Serbian graphemes are presented ...Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová. "Frequency and Length of Syllables in Serbian" in Glottometrics (2019)
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‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions
Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban. "‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions" in Boletín de la Sociedad Española de Cerámica y Vidrio, Elsevier BV (2020). https://doi.org/10.1016/j.bsecv.2020.06.005
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Млади у науци и високом образовању у Србији: останак или одлазак с повратном картом
Цветковић Владица (2018)Цветковић Владица. "Млади у науци и високом образовању у Србији: останак или одлазак с повратном картом" in Ка бољој демографској будућности Србије, Београд:Институт друштвених наука – Српска академија наука и уметности (2018)
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Business Models for Small-scale Biomass Projects Development
Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...... Market Uptake of Sustainable Bioenergy, grant agreement No 691661, available at http://www.biovill.eu/ [4] Jerotić, S., D. Ivezić, M. Gluščević, H. Tretter, S. Athavale, M. Höher, Report on the opportunities to set up biomass based CHP plants and small district heating networks in the target ...
... 017/12/BioVill-D4.2_Kostojevici_Serbia_report.pdf, 2017 [5] D. Ivezić, S. Jerotić, M. Gluščević, Dragana Ivanović, Projekat razvoja bioenergetskog sela u Kostojevićima, Procesna tehnika, 14-18, 2018. [6] D. Ivezić, M. Gluščević, S. Jerotić, Possibilities for introduction of Bioenergy Village concept ...
... demand was assumed to be around 8,842 MWh/a. The total connected consumer peak load is 1.4 MW. For the existing DH grid with a trench length of 2,900 m, losses of 25% of heat produced were assumed after reconnection. Considering the assumed grid losses and the simultaneity factor (60% of load is required ...Dejan Ivezić, Miodrag Gluščević, Marija Živković. "Business Models for Small-scale Biomass Projects Development" in 19th International Conference on Thermal Science and Engineering of Serbia, Niš : Faculty of Mechanical Engineering (2019)
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Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry
Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalizationSteven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti. "Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945979
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Млади у науци и високом образовању у Србији: останак или одлазак с повратном картом
Цветковић Владица (2018)Цветковић Владица. "Млади у науци и високом образовању у Србији: останак или одлазак с повратном картом" in Ка бољој демографској будућности Србије, Београд:Институт друштвених наука – Српска академија наука и уметности (2018): 190-209
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FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... 1016/S0924-2031(02)00065-6 Madejova, J. Palkova, H., Pentrak, M., Komadel, P., 2009. Near-infrared spectroscopic analysis of acid-treated organo-clays. Clays Clay Miner., 57, 392-403. DOI: 10.1346/CCMN.2009.0570311 Majdan, M., Bujacka, M., Sabah, E., Gladysz-Plaska, A., Pikus, S., Stemik, D., Komosa ...
... sample. 330 SERBIAN SOCIETY OF SOIL SCIENCE Soils for Future under Global Challenges After air drying, montmorillonite was saturated with 1 M NaCI, and lefton a mechanical shaker for 24 h, centrifuged and rinsed with distilled water until the negative reaction on CL. The sample was then alr-dried ...
... vibrations, are located around 916 and 871 cm-!, and they are typical for mineral montmorillonite (Madejova, 2003; Tomić et al, 2012). š las —|\ }yi |M\ ı ! HDTMA [| |j V \| šž\js 1 ~ ||gi a)ž 2nd dervate Š | b) JI š š |} š ii s e š H || i š } ž Š | e š - H H 1 a Fi i i NMA 41 “0 — s%0 ~ ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)