Претрага
890 items
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Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)
Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović. "Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)" in Materials, MDPI AG (2024). https://doi.org/10.3390/ma17040820
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Bilingual lexical extraction based on word alignment for improving corpus search
Jelena Andonovski, Branislava Šandrih, Olivera Kitanović. "Bilingual lexical extraction based on word alignment for improving corpus search" in The Electronic Library, Emerald (2019). https://doi.org/10.1108/EL-03-2019-0056
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Managing mining project documentation using human language technology
Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation... document management in complex systems, such as e-government, may be improved with the support of semantic technologies (Stojanovic et al., 2005). The authors propose new methods for semantic service annotation and discovery to improve the usability of e-government services, focussing on novel functionalities ...
... morphologic and semantic values present in e-dictionaries. However, it should be noted that in this process the corpus itself is not internally annotated. Instead, Unitex constructs a corpus dictionary, based on the corpus text, with annotations from the e-dictionary system for Serbian and then uses ...
... of mining project documentation. Serbian e-dictionaries, covering both simple words and multi-word units (MWUs) and dictionary finite-state transducers, are used for IE and text tagging as part of various natural language applications (Krstev, 2008). Each e-dictionary consists of a list of entries, ...Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja . "Managing mining project documentation using human language technology" in The Electronic Library (2018). https://doi.org/10.1108/EL-11-2017-0239
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Analiza obrazovnog sistema i kadrovskog potencijala Republike Srbije u oblasti rudarstva i geologije
Adekvatno postavljen i kontinualno unapređivan sistem obrazovanja predstavlja jasan preduslov za razvoj pojedinca, društva i države u celini. Sistem obrazovanja u Republici Srbiji davno je postavljen, a reforme nisu do kraja sprovedene. Posebno je to izraženo u visokom obrazovanju gde reforma po bolonjskom sistemu nije do kraja sprovedena ili je negativno zloupotrebljena. Trenutno je sistem obrazovanja je pod velikim pritiskom usled oštrih zahteva tržišta rada. U ovom radu je izvršena analiza obrazovnog sistema u oblasti rudarstva i geologije u ...... na OAS i MAS. E= Rudarsko inženjerstvo, TF 120 120 Bor OAS r Rudarsko inženjerstvo, TF Bor MAS 100 100 r = Rudarsko inženjerstvo, RGF OAS E= Rudarsko inženjerstvo, RGF 80 80 MAS E= bženjerstvo nafte i gasa, 60 60 RGFOAS E= inženjerstvo nafte i gasa, RGF MAS 40 53 40 E bženjerstvo zaštite ...
... 104 200 183 200 . E= Tehnička škola u Kostolcu 180 180 Redovno 160 160 r= Tehnička škola u Kostolcu 'Vanredno 140 140 E= Tebnička škola u 120 120 Lazarevcu Redovno 100 100 r==ebnička škola u 80 80 Lazarevcu Vanredno 60 60 E Tehnička škola u Boru Redovno 40 E Tehnička škola u Boru ...
... 95 9% 60 57 48 57 62 55 67 53 103 E T-hnička škola u 9 90 Kostolcu Redovno 80 80 E T-hnička škola u 70 70 Kostolcu Vanredno 60 60 — Tehnička škola u Lazarevcu Redovno 5 0 57 57 55 53 ŠO —— rahničkaškolau 40 48 40 Lazarevcu Vanredno 30 30 E= T-bnička škola u Boru Redovno 20 20 ...Dragan Ignjatović, Stevan Đenadić, Predrag Jovančić, Filip Miletić, Jovana Mitrović . "Analiza obrazovnog sistema i kadrovskog potencijala Republike Srbije u oblasti rudarstva i geologije" in XVI Međunarodna rudarska konferencija OMC 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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Automatic construction of a morphological dictionary of multi-word units
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansionCvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić. "Automatic construction of a morphological dictionary of multi-word units" in Lecture Notes in Computer Science 6233, Advances in Natural Language Processing, Proceedings of the 7thInternational Conference on NLP, IceTAL 2010, Reykjavik, Iceland, August 2010, Springer (2010): 226-237. https://doi.org/10.1007/978-3-642-14770-8_26
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Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)
Nikita Bragin, Nevenka Đerić (2020)Nikita Bragin, Nevenka Đerić. "Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)" in Geologia Croatica, Croatian Geological Survey (2020). https://doi.org/10.4154/gc.2020.11
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Aнализа и димензионисање примарне и секундарне гасне дистрибутивне мреже ,,Студија случаја Прибој"
Никола Котлаја (2024)У овом раду је приказано идејно решење пројекта гасификације градског насеља, општине Прибој на основу података прикупљених у претходном периоду , од надлежних лица која су са тим упозната и података из сектора широке потрошње које су биле јавно доступни.... y Enpomu miro ce THue cHrypHOcTH CHaOJleBaba IpHpOJIHHM TaCOM (Cmaka 2.1). N- 1V HA EK C SIIIJE 0 P E P P a o o ! T O o ? # 0 d9 O e P O a j. |_ 4 R Ć aR NII OL OA a ONKJ O E Ž P 0 t a (; i kl F) O d MON O - WR Cnuka 2.1 - be36e0nocm cna00eg6ahba npupooOnuw oacow y Eaponu [3] ...
... norTpointpa raca 3a rpejape JeJHor craHa oJipebyJe ce noohy JeyHauHHe: SD – 0poj creneH naHa Qgn — noTpotiha raca o caTy (T) e – kKoe(bHinujeHT orpaHueDba Qgg=24*5D*Qgh*e* Y — KopekioHu (baKkTop JejHOBpeMeHOCTH tu - yHyTpatmtba TeMrteparypa rpejabba, ti=20' C ts — IIpoOjeKTOBaHa cCIIOJbHa T ...
... paa (rpaHaua Kanauurer: 1.8 Mwnujapna M3 (Jn Cp6ujarac, ca ByrapckoM) ronMuitbe 2016) [naBHM racoBoA MI -08 nyxuwHa (y Cp6uju): 95 km 60 MwnnoHa E D a - 10 0%:0 TocnofyuHue (0yTor XpBaTCKOM Cp6uja) -CoTMH KanauureT: 1.5 uwnujapna M3 (Cp6ujarac, (rpaHuua ca XpBaTckoM) TOAMUIHC 2016) 85 MwnMOHa ...Никола Котлаја. Aнализа и димензионисање примарне и секундарне гасне дистрибутивне мреже ,,Студија случаја Прибој", 2024
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Building learning capacity by blending different sources of knowledge
Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić. "Building learning capacity by blending different sources of knowledge" in International Journal of Learning and Intellectual Capital (2016). https://doi.org/10.1504/IJLIC.2016.075698
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Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands
Studije u oblasti antikancerogenih karakteristika jedinjenja rutenijuma(III/II) izazivaju veliku pažnju već nekoliko godina otkako su neka od njih kao što su KP1019 (indazolijum-tetrahloridobis(H-indazol)rutenat(III)) i NAMI-A (imidazolijum) -trans-tetrahlorido(dimetilsulfoksid)indazolerutenat(III)) dostigao nivo kliničkog ispitivanja. Kompleksi rutenijuma u reakciji sa molekulom DNK formiraju prvenstveno gvanin- i adenin-adukt, kao komplekse platine. Takođe, nekoliko studija ukazuje na veoma jake interakcije sa proteinima. Međutim, kompleksi Ru(III/II) pokazuju generalno manje toksične efekte od lekova platine(II).1 Proučavali smo kinetiku reakcija supstitucije kompleksa [Ru(terpi)(bipi)Cl]Cl sa biološki važnim ligandima: dimetilsulfoksidom, gvanozin-5’-monofosfatom, ...... B. K. Keppler, Dalton Trans., 2008, 183-194. OE OO ie AL ee arse mae ee ee ae 2. E. Zangrando, N. Kulisic, F. Ravalico, I. Bratsos, S. Jedner, M. increasing pH, the concentration of this complex increases. Casanova, E. Alessio, Inorg. Chimica Acta, 2009, 362, 820-832 3. Gans, P., Sabatini, A., Vacca ...
... Пн, ме ~ е Зе 4 6 8 10 „12.pH Tigure 3. The distribution of [Ru(terpy}(bipy)H,OP hydrolytic species in 0.1 mol dm? NaCIO,ionic medium at 298 K. Ciudterpyy(bipy)H2O}" 2.00 mmol dmr? . M.A.Jakupec, M. Galanski, V. B. Arion, C. G. Hartinger, ·.B.K. Keppler, Daffon Trans., 2008, 183194. E. Zangrando ...
... substitution reactions of [Ru(terpy)(bipy)Cl]* complex with nucleophiles in 0.1 mol NaClO, and 10 mM NaCl. 0.009 S'-GMP j OL 20 eps [Ru(terpy)(bipy)Cl]* E 2 ligandi k, [M's] k, [s?] ee i i 5’-GMP (1.30 + 0.03) x 10+ (2.00 + 0.07) 10° ae oe DMSO (1.97 £ 0.20) x 10 (1.23 + 0.06) x104 Tiourea (1.89 + 0.07) ...Aleksandar Mijatović, Biljana Petrović, Ratomir Jelić, Živadin Bugarčić. "Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands" in EuroAnalysis 16 - Challenges in Modern Analytical Chemistry, Belgrade : Division of Analytical Chemistry of the Serbian Chemical Society (2011)
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A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian
Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih. "A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian" in 3rd Conference on Language, Data and Knowledge (LDK 2021), MDPI AG (2021). https://doi.org/10.4230/OASIcs.LDK.2021.13
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Kvantitativne karakteristike eksploatacionog režima podzemnih voda na izvorištu "Jaroš" - Sombor
Izvorište "Jaroš" formirano je na prostoru SOmbora. Podzemne vode koje se zahvataju na izvorištu sa ukupno 18 bunara koriste se za vodosnabdevanje grada Sombora, prigradskih i okolnih naselja. Podzemne vode se zahvataju iz zbijenog tipša izdani sa slobodnim nivoom kvartarne starosti. Hidrodinamički model režima podzemnih voda izrađen je u cilju analize eksploatacionog režima i bilansa podzemih voda na izvorištu "Jaroš". Primenom hidrodinamičkog modela zasnovanog na numeričkoj metodi konačnih razlika određen je bilans podzemnih voda za područje istraživanja predmetnog izvorišta, ...Dušan Polomčić, Jelena Ratković, Vesna Ristić Vakanjac, Dejan Tadić, Bojan Hajdin. "Kvantitativne karakteristike eksploatacionog režima podzemnih voda na izvorištu "Jaroš" - Sombor" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739557
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A Tel Platform Blending Academic And Entrepreneurial Knowledge
Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović. "A Tel Platform Blending Academic And Entrepreneurial Knowledge" in Proceedings of the The Fourth International Conference on e-Learning (eLearning-2013), September 2013, Belgrade, Serbia, Belgrade, Serbia : Belgrade Metropolitan University (2013)
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Димензионисање транспортера на спољашњем одлагалишту повшинског копа Западни Костолац
Петар Миловановић (2024)У савременом рударству, површински копови угља наилазе на различите проблеме које треба превазићи зарад добијања потребне количине угља. Као највећи потрошачи овог енергента су термоелектране, на основу овога можемо да закључимо колико су блиско повезани добра и континуирана производња на површинском копу и рад термоелектрана. Са задатком да се обезбеди стабилна и континуирана производња, потребно је да се направи добар одабир транспортера. У овом раду, за димензионисање потребног транспортера са траком, коришћен је програмски пакет Helix.Програмски пакет Helix представља један ...... ce JaBJba, [N] Cuuta y HaHna3HOM KpaKy ce pauyHa H3 H3pa3a: _ _ Sn _Sn'eP“—Sn „_Sn'(eh“ — 1) Pv–Sn—Ss–Sn—e„—„a–e„—„a–e„—„a n n {Ha OCHOBy —- = eP'đ S Ss = —} — Sn = Smax = Ss elG e rae cy: Pv ByuHa cHia, [kN] Ss – cata y cHJ1a3HOM Kpaky, [kN]e0"% — pyunu (bakrop (ra6e;a 3.) 0 — 0OHXBaTHH ...
... a3aBprHH pajl H01 HaCJIOBOM _A e sMONHMCG e TDowcnopTepe HG CnO/oCuIhbe MM OAnarGAnlAU T.y DoBDDUHCIOF Kone _ egv Kocro- PAl 7 1H • peayjrraT COIICTBEHOT HCTpa)KHBauKorT pajta; • a 3aBDpHIHH paji y HČHMHHM HH y JIČMOBHMMA HHje OHO TIID6JUIO)KCH 3a CTHIIAMĐ»e Npyre JUWTIJIOME Ha CTyJUMJCKHM ...
... KocTOJIaMI ... aaaaanaactee 2 2.1. ITeorpa()CKO-CKOHOMCKC KapaKTepHCTHKC JICKHIHITA lyy aanananaaanaaae 2 2.2. _ BemwuMHa H OOJIHK HOKHIMTA a aa e aae e eaeaeaeaaaaaaaaiaakttee 3 2.3. _ Teomomga rpaba nexumrTa....aaaaaaaaaa a aaaaaaaeaa a aeaaaaaaaaaaaaNe 5 2.4. | FHHeMepCKO-TCOJIOHIKe KapaKTepHCTHKC ...Петар Миловановић. Димензионисање транспортера на спољашњем одлагалишту повшинског копа Западни Костолац, 2024
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Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic
This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композицијаMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović. "Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic" in Energies, MDPI AG (2022). https://doi.org/10.3390/en15186786
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Sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja
Anđela Jovanović (2024)Predmet i cilj pisanja ovog rada su sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja. Prilikom ovih istraživanja, ispitivan je sistem REE2O3–V2O5–KF, gde REE predstavlja trovalentni katjon izabranih elemenata retkih zemalja (Y, Sm, Eu, Gd, Er, Yb). Ovo istraživanje bazirano je na sintezi kristala, nakon čega su dobijeni kristali posmatrani pod binokularnom lupom, analizirani metodom rendgenske difrakcije na polikristalnom materijalu (XRPD) i metodom skenirajuće elektronske mikroskopije sa energetsko-disperzivnom spektroskopijom (SEM-EDS), kako bi se utvrdile karakteristike dobijenih kristala. ...elementi retkih zemalja, sinteza kristala metodom fluksa, vanadati alkalnih metala, rendgenska difrakcija, SEM-EDS metodaAnđela Jovanović. Sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja, 2024
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Microstructural and magnetic properties of electrospun hematite/cuprospinel composites
Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic MaterialsMira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić. "Microstructural and magnetic properties of electrospun hematite/cuprospinel composites" in Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s10854-020-03526-0
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The ‘Umka’ landslide
We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoringUroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević. "The ‘Umka’ landslide" in Journal of Maps, Informa UK Limited (2024). https://doi.org/10.1080/17445647.2024.2418580
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Prilog poznavanju promena kvalitativnih parametara voda vrela Banje kod Valjeva
Jovana Lončar, Maša Vulović, Veljko Marinović, Branislav Petrović, Radisav Golubović, Vesna Ristić Vakanjac (2024)Zbog nepristupačnosti karstnih masiva i nenaseljenosti slivova karstnih vrela, često se sprovode osmatranja parametara kvaliteta i kvantiteta voda sporadično, po potrebi i to godišnje, sezonski/kvartalno, mesečno, nedeljno. Analize ovako formiranih nizova mogu dovesti do pogrešnih zaključaka, naročito kada se vrše analize ekstrema. Međutim, kada su u pitanju karstne izdanske vode, režim pojedinih parametara može biti jako uslovljen pluviografskim režimom. Najčešći su slučajevi da nakon otapanja snežnog pokrivača, zatim pri kišama jačih intenziteta ili dužih trajanja dolazi do skoro istovremenog ...Jovana Lončar, Maša Vulović, Veljko Marinović, Branislav Petrović, Radisav Golubović, Vesna Ristić Vakanjac. "Prilog poznavanju promena kvalitativnih parametara voda vrela Banje kod Valjeva" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13740037
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Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism
Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal. "Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism" in Lithos (2017). https://doi.org/10.1016/j.lithos.2017.07.006