Претрага
603 items
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A Fuzzy Expert Model for Availability Evaluation
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 ...... μSj, …, μSn); Such membership functions could create C = n3 mutual combinations. Each combination represents one possible input for synthesis and evaluation of A. Ac = [μR j=1, …, n, μM j=1, …, n ,…, μS j=1, …, n] , for all c = 1 to C (2) If only values of µR,M,S j = 1, …, 5 ≠ 0 are ...
... taken into consideration, o outcomes (o = 1 to O, where O˂=C) are obtained. Additionally, for each outcome, its value (Ωc) is calculated. The outcome that suit the cth combination is calculated following the equations: Ωc = [∑R,M,S j]c / 3 (3) All of these outcomes are treated with the max-min ...
... 14/exc,0.29/good,0.43/aver,0.14/adeq; R(F-Cat.) = 0.54/exc,0.46/good; M(F-Cat.) = 0.57/exc,0.43/good; S(F-Cat.) = 0.18/exc,0.68/good,0.14/avr; C. Fuzzification In the next step, these assessments are mapped on A fuzzy set (2) in order to obtain assessment in the fuzzy form. The example for ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes
Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre. "Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes" in Geomorphology, Elsevier BV (2022). https://doi.org/10.1016/j.geomorph.2022.108488
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Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication
... oxycostata (Jacob) in Breistroffer; Mazenot, p. 51, pl. 3 fig. 9a-j, non fig. 10a—c (= Fauriella simplicostata Mazenot). 1953 Berriasella oxycostata (Jacob) in Mazenot; Arnould-Saget, p. 29, pl. 3, figs. 5a-c, 6a–c. 1973 Berriasella (Picteticeras) oxycostata (Jacob); Le Hegarat, p. 78, pl. 8, ...
... text-fig. 1. cf. 1939 Berriasella delphinensis (Kilian); Mazenot, p. 67, pl. 6, figs. 14a, b, 15a-c. cf.1953 Berriasella delphinensis (Kilian) Mazenot; Arnould-Saget, p. 45, pl. 4, figs. 10a—c, 11a-c. cf. 1973 Delphinella delphinensis (Kilian); Le Hćgarat, p. 104, pl. 13, figs. 7, 8; pl. 42, figs ...
... n u o / g d e y u n d ) 2 u l ) snjejound s n u o / Q d e ) o u n c OjSIJeoqns BiJejeJe5o} — esueuo/(ouq seje2oouanojsqns ___ee- snjejnojossj sojtuejdqnsopnescj —___e- IJouoj s e j u u e J j d q n s o p n o s c e e e — - Jedse '}o SeJeO!SOqJE}/ • uunojojd '} SeJaolJeJ5aN ...Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović. "Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication" in Cretaceous Research (2023). https://doi.org/10.1016/j.cretres.2023.105623
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Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept
Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov. " Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept" in Engineering Geology , Elsevier (2019). https://doi.org/10.1016/j.enggeo.2019.05.007
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Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata
Dejan N. Radivojević (2014-12-30)Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika... Bacunella dorsoarcuata, Bacunella abhazica, Candona (Lineocypris) trapezoidea, C. (Pontoniella) acuminata, C. (Caspiocypris) alta, C. (Caspiocypris) labiata, C. (Caspiolla) lobata, C. (Caspiolla) balcanica, C. (Lineocypris) nonreticulata, Leptocythere andrusowi, L. multituberculata, L ...
... u godini, sa srednjom temperaturom od 21,9˚ C. Najniže srednje mesečne temperature javljaju se u januaru, a njihova srednja vrednost je 0,0˚ C. Vegetacioni period traje od početka aprila do kraja septembra sa prosečnom temperaturom vazduha od 18,2˚ C. Na prostoru severnog Banata vetrovi se javljaju ...
... sedimenti. Razlog nepostojanja ovih sedimenata na određenim mestima je ili njihovo nedeponovanje (slike 6.2.c i 6.3.c) ili erozija (severna strana seizmičkog profila 2, slika 6.3.c). Sarmatski sedimenti imaju najmanju debljinu od svih miocenskih članova. Ipak, pretpostavlja se da ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
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Uniaxial compressive strength test before and after standard fire test on rock mass
Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)... pressure. Inside furnace, temperature was measured in six places with a type K thermocouple. Measuring ranges of type K thermocouples were - 270 ° C to 1372 ° C. Acquisition systems for monitoring standard fire tests in vertical furnace were made completely in Laboratory for thermotechnics and fire protection ...
... Kijanovićc a Faculty of Civil Engineering, University of Belgrade, Serbia b Faculty of Mining and Geology, University of Belgrade, Serbia c Institute for testing materials IMS, Belgrade, Serbia d Unogradnja V.V. Belgrade, Serbia ABSTRACT The paper presents uniaxial compressive ...
... be flat with the appropriate tolerances prescribed. Sides of pattern must be smooth and straight, with no bumps. Samples must be dried at 70 ± 5 ° C to constant weight before testing. A constant mass is considered to have been reached when the difference between two consecutive weight measurements ...Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović. "Uniaxial compressive strength test before and after standard fire test on rock mass" in Fifth symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 23-25. 06. 2022, Macedonian Association for Geotechnics (2022)
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Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... particles 1.e. moisture in pores inside particles, b) moisture between particles 1.c. in pores between particles and c) moisture that waste particles with low hydraulic conductivity retain (Figure 4). EO a) b) c) Fig. 4. Different types of fluid within the pore space of waste (Zornberg et al ...
... a temperature of 440%C. Since the values are obtained on particles smaller than 20 mm, Zekkos method for determination of organic matter content was used, which determined percentage mass loss for different materials (paper, wood, plastic) after annealing at 440"C (Zekkos et al.,2006). The ...
... both in depth and from · · O waste- location to location, so the method of taking and O selection of representative samples is problematic and y &@F"c'“f'“ a has not yet been standardized (Rakić et al., 2011). The ” ŠoilDragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
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WS4LR - a Worksation for Lexical Resources
... order, omissions, etc. The entry in DELAC is therefore accordingly more complex: c-lemma.Cnnn [+SinSem]* where c-lemma is a list of constituents in the form of entries of the DELAF dictionary of simple word forms: c-lemma=lemma1.Nnnn[:categories], lemma2.Nnnn[:categories], lemma3.Nnnn[:categories] ...
... (eds.) (1990) Dictionnaires électroniques du français, Langue française 87, Paris: Larousse Fellbaum, C. (ed.) (1998) WordNet: An Electronic Lexical Database, The MIT Press Krstev, C., et al., (2004) Combining Heterogeneous Lexical Resources, in Proc. of the Fourth International Conference ...
... particular interest are programs that use XML tagged input texts and produce the result also as an XML document. Such is the case with XAlign6. In Appendix C short examples of input and output to XAlign, as well as the corresponding TMX format are given. 2.4 Finite Transducers As described in section ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović. "WS4LR - a Worksation for Lexical Resources" in Proceedings of the Fifth Interantional Conference on Language Resources and Evaluation, Genoa, Italy, May 2006, ELRA - European Language Resources Association (2006)
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Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
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Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone
The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...Emő Márton, Marinko Toljić, Vesna Cvetkov. "Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone" in Journal of Geodynamics, Elsevier BV (2022). https://doi.org/10.1016/j.jog.2021.101880
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P-T analiza RMU Bitola – krupne klase
Nemanja Dobrosavljević (2024)Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans... sledeće grupe: > Lako topljivi (tačka topljenja ispod 1200%C), > Srednje topljivi (tačka topljenja između 1200 i 1350%C) i »> 'Teško topljivi (tačka topljenja između 1350 i 1500%C). Ukoliko se kod ugljeva javi tačka topljenja pepela ispod 1200%C oni spadaju u grupu ugljeva koji su nepogodni za loženje ...
... obavljati u ređoj pulpi (20-25%Č-), jer se u gustoj pulpi flotabilnost krupnih zrna smanjuje), c) temperature pulpe (najpovoljnija temperatura Je od 20 do 30%C, a moguće je temperaturu podići ı na 26 do 34"C), d) vremena flotiranja i kondicioniranja trebaju da budu kratka (poželjno je vreme kond ...
... 60 + 5 mm) za gustinu raslojavanja 1,6 t/m* računato na suv ugalj (105 C). U tabeli pod rednim brojem 12. prikazan je prognozirani bilans za gustinu raslojavanja 1,7 t/m”. Dati bilansi su analizirani na suv ugalj (105" C). Tabela 11. Prognozni bilans čišćenja rovnog uglja klase krupnoće (-60 ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024
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Improvement of geodatabase queries within GeolISS
Ranka Stanković (2008)... 97–104. [9] Krstev, C., Stanković, R., Vitas, D., Obradović, I. (2006). “WS4LR: A Workstation for Lexical Resources”. In Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2006, Genoa, Italy, May 2006, pp. 1692–1697 [10] Krstev, C., Vitas D., Stanković ...
... pp. 1103-1106. [11] Krstev C., Pavlović-Lažetić G., Vitas D., Obradović I.: “Using Textual and Lexical Resources in Developing Serbian Wordnet”, Romanian J. Information Science and Technology, Romanian Academy, vol. 7, No. 1–2, pp. 147–161, (2004) [12] Krstev, C., Vitas, D., Maurel, D., Tran ...
... (field name in the geodatabase) is defined, as well as header text (to be displayed in query construction), field type with coded values for string ‘C’, number ‘N,I’, date ‘D’, and domain ‘X’, with the domain name given separately. Ranka Stanković 69 Figure 3. The form for maintenance ...Ranka Stanković. "Improvement of geodatabase queries within GeolISS" in Review of the National Center for Digitization, Beograd : Faculty of Mathematics, Belgrade (2008)
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Mikroplastika u peloidima iz Srbije i Slovenije
A. Šajnović, G. Gajica, F. Prosenc, S. Stojadinović, G. Veselinović, P. Trebše, P. Dabić, B. Jovančićević (2023)... mm, 500 um, 250 um ı 100 nm od nerđajućeg čelika (Retsch, Nemačka). Svakafrakcija je sakupljanana GF/C 45 mm filterusaveličinompora 1,2 um(Whatman, UK). Nakon toga filterisusušeni u pećina 60 *C. Iz najveće frakcije suvih filtara mikroplastika je izolovana ručno pod lupom, koristeći test vruće igle ...
... Environ. Sci. Technol. 52 (2018) 1704-1724. 3. Schroter, L., Ventura, N. Sma// 18 (2022) 2201680. 4. Gulizia, A., Patel, K., Philippa, B., Motti, C., van Herwerden, L., Vamvounis, G. Sci. Total Environ. 857 (2023) 159099. 5. Xu,Z.,Cui, Y., Li, T., Dang, H., Li, J., Cheng, F. Macromol. Chem. Phys ...A. Šajnović, G. Gajica, F. Prosenc, S. Stojadinović, G. Veselinović, P. Trebše, P. Dabić, B. Jovančićević. "Mikroplastika u peloidima iz Srbije i Slovenije" in 9. simpozijum Hemija i zaštita životne sredine EnviroChem2023, Kladovo, 4-7. jun 2023., Beograd : Srpsko hemijsko društvo (2023)
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)
N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Keyword Extraction from Parallel Abstracts of Scientific Publications
... Krstev, C., Vitas, D., Vulović, N., Kitanović, O.: Keyword-based search on bilingual digital libraries. In: Calì, A., Gorgan, D., Ugarte, M. (eds.) KEYSTONE 2016. LNCS, vol. 10151, pp. 112–123. Springer, Cham (2017). https://doi.org/10.1007/978-3-319-53640-8_10 17. Vitas, D., Popović, L., Krstev, C., Obradović ...
... simultaneously. Therefore, we focus on a method that can be easily ported to a new language. The prerequisites needed for this desirable characteristic are c© Springer International Publishing AG, part of Springer Nature 2018 J. Szymański and Y. Velegrakis (Eds.): IKC 2017, LNCS 10546, pp. 44–55, 2018. https://doi ...
... are filtered to reject falsely offered lemmas and then they are ranked by introducing measures that combine the linguistic and statistical information (C-Value, T-Score, LLR, and Keyness). In previous research, all the texts were joined and the entire collection was treated as a single text, while for the ...Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić . "Keyword Extraction from Parallel Abstracts of Scientific Publications" in Sematic Keyword-Based Search on Structured Data Sources - Third International KEYSTONE Conference, IKC 2017 Gdańsk, Poland, September 11–12, 2017 Revised Selected Papers and COST Action IC1302 Reports, Springer (2017)
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Resource-based WordNet Augmentation and Enrichment
In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...... , S., Esuli, A., and Sebastiani, F. (2010). Sentiwordnet 3.0: An enhanced lexical resource for sentiment analysis and opinion mining. In Chair), N. C. C., Choukri, K., Maegaard, B., Mariani, J., Odijk, J., Piperidis, S., Rosner, M., and Tapias, D., Eds., Proceedings of the Seventh International Conference ...
... Narodna biblioteka Srbije. Krstev, C., Stanković, R., Vitas, D., and Obradović, I. (2006). WS4LR: A Workstation for Lexical Resources. In Proceedings of the Fifth International Conference on Language Resources and Evaluation, LREC 2006, pages 1692–1697. Krstev, C., Stanković, R., and Vitas, D. (2010) ...
... and Knowledge Engi- neering, pages 412–416. Oliver, A. and Climent, S. (2014). Automatic creation of wordnets from parallel corpora. In Chair), N. C. C., Choukri, K., Declerck, T., Loftsson, H., Maegaard, B., Mariani, J., Moreno, A., Odijk, J., and Piperidis, S., Eds., Proceedings of the Ninth International ...Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev. "Resource-based WordNet Augmentation and Enrichment" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018)
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Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment
Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)... ROWLAND H.A.L., OMOREGIE E.O., ROMAIN M., JIMENEZ C., MERTENS J., BACIU C., HUG S.J., BERG M. Geochemistry and arsenic behaviour in groundwater resources of the Pannonian Basin (Hungary and Romania). Appl. Geochem. 26, 1, 2010. 9. UJEVIĆ M., DUIĆ Ž., CASIOT C., SIPOS L., SANTO V., DADIĆ Ž., HALAMIĆ J. Occurrence ...
... BIGGS M. L., MOORE L., HAQUE R., STEINMAUS C., CHUNG J., HERNANDEZ A., LOP- IPERO P, Cancer Risk from Arsenic in Drinking Water. Implications for Drinking Water Standards, Elsevier Science, pp. 191-199, 1999. 40. UJEVIĆ BOŠNJAK M., CAPAK K., JAZBEC A., CASIOT C., SIPOS L., POLJAK V., DADIĆ Ž., Hydrochemical ...
... research was supported by the Ministry of Education and Science, Governement of Republic of Serbia, through a Project III 43004. References 1. JACK C. NG, JIANPING W., AMJAD S. A global health problem caused by arsenic from natural sources, Chemosphere, 52, (9), 1353, 2003. 2. SMITH A. H., LINGAS E ...Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić. "Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment" in Polish Journal of Environmental Studies (2012)