Претрага
891 items
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Petrological and organic geochemical characterization of OM in coal and shales from the Ibar basin (south Serbia)
Životić Dragana, Bechtel Achim, Sachsenhofer Rainhadr, Gratzer Rainhadr, Stojanović Ksenija, Andrić Nevena, Simić Vladimir (2015)Životić Dragana, Bechtel Achim, Sachsenhofer Rainhadr, Gratzer Rainhadr, Stojanović Ksenija, Andrić Nevena, Simić Vladimir. "Petrological and organic geochemical characterization of OM in coal and shales from the Ibar basin (south Serbia)" in ICCP Program & Abstract Book. 67th Annual Meeting of the International Committee for Coal and Organic Petrology, September 5-11. 2015,, Potsdam, Germany:Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften Heft 87 (2015): 166-167
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In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking
Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić (2021)Kompleksi metala sa tetradentatnim Šifovim bazama ispoljavaju različitu biološku aktivnost, što omogućava ciljne sinteze novih biološki aktivnih jedinjenja. Proučavane su interakcije H[Rh(acac2en)Cl2] (1) i H[Rh(phacac2en)Cl2] (2) sa humanim serum albuminom (HSA) i sa DNK, primenom fluorescentne i UV-Vis spektroskopije (298 K, pH 7,4). Dobijene su relativno visoke vrednost dinamičke konstante vezivanja (Ksv) i to 3,88·104 M-1 za (1), 7,02·104 M-1 za (2), što ukazuje na značajno vezivanje za HSA. Izračunate konstante unutrašnjeg vezivanja (Kb) su: 2,87·105 M-1 ...Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić. "In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking" in 57. savetovanje Srpskog hemijskog društva , Dušan Sladić (2021)
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Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia
... Serbia | Maja Milošević, Mihovil Logar, Biljana Đorđević | Nordic Clay Meeting/3rd Symposium Clays & Ceramics 2021 | 2021 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005497 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... has been supported by the Ministry of Education, Science and Technological Development, Serbia References : [1] Milošević M., Dabić P., Kovač S., Kaluđerović L. & Logar M. (2019) Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics, Clay Minerals, 1-9. doi:10.1180/clm.2019 ...Maja Milošević, Mihovil Logar, Biljana Đorđević. "Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia" in Nordic Clay Meeting/3rd Symposium Clays & Ceramics 2021, The Latvian Clay Science Society (2021)
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Integrisanje heterogenih leksičkih resursa
Osnovna aktivnost Grupe za obradu prirodnih jezika na Matematičkom fakulteta Univeziteta u Beogradu je usmerena na razvoj različitih resursa za obradu srpskog jezika. Među njima su posebno značajni sistem morfoloških rečnika srpskog jezika razvijenih u okviru mreže RELEX [1] i semantička mreža (tipa wordnet) za srpski jezik razvijena u okviru međunarodnog projekta Balkanet. Radi se o dva heterogena leksička resursa, razvijena na osnovu sasvim različitih modela, koji samim tim sadrže i različite vrste leksičkih informacija. Integracijom ovih resursa, informacije ...... katalog 11. Festivala informatičkih dostignuća INFOFEST 2004, 26th September - 2nd October, 2004, Budva, Montenegro | 2004 | | http://dr.rgf.bg.ac.rs/s/repo/item/0004865 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... EuroWordnet ([3]). U ovom trenutku SWN sadrži oko 7000 koncepata i njima odgovarajućih skupova sinonima (sinsetova) sa ukupno 11000 parova reč/značenje. S obzirom na činjenicu da je osnova SWN, kao uostalom i WN za sve ostale balkanske jezike u okviru Balkanet projekta, dobijena prevođenjem odgovarajućih ...
... zvuk:1 glas:1a Slika 1. Hiponim/hiperonim drvo za sinset: 'zvuk:1a' S obzirom na to da su u srpski MR ugrađene samo osnovne semantičke informacije, postoji veliki broj identičnih zapisa, koji predstavljuju u suštini različite ...Ranka Stanković, Cvetana Krstev, Duško Vitas, Ivan Obradović, Gordana Pavlović-Lažetić. "Integrisanje heterogenih leksičkih resursa" in Festivalski katalog 11. Festivala informatičkih dostignuća INFOFEST 2004, 26th September - 2nd October, 2004, Budva, Montenegro, INFOFEST (2004)
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Cutting elements of bucket wheel excavators in lignite opensast mines: Methodology and performed solutions
Dragan Novaković, Predrag Jovančić (2016)Bucket and cutting elements geometry (teeth and hardened steel) have very powerful impact on effective operation of bucket wheel excavator, and that`s why, problems of optimal geometry of elements in specific conditions always are of special interest in mining science and technique. If we want to achieve satisfactory utilization of bucket wheel excavator, it is necessary to modulate geometry material characteristics and technological parameters, as regards bucket wheel excavator work regime, and bucket wheel working performances, and also bucket ...Dragan Novaković, Predrag Jovančić. "Cutting elements of bucket wheel excavators in lignite opensast mines: Methodology and performed solutions" in 13th International symposium Continuous Surface Mining ISCSM 2016, 12-14 September 2016, Belgrade – Serbia, Belgrade : Yugoslav Opencast Mining Committee, Belgrade (2016)
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Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa
Zoran Ž. Miladinović (2012-12-11)Jedan od najznačajnijih regiona u Srbiji, sa stanovišta potencijalnosti juvelirskih mneralnih resursa, predstavlja lecki vulkanski kompleks, tercijarne starosti i dominantno andezitskog sastava. Ovaj vulkanski kompleks površine preko 700km2 nalazi se u južnojSrbiji na prostoru imeđu Kuršumlije, Lebana i Medveđe.Prvi su pažnju na juvelirske mineralne sirovine ovog prostora obratili graditeljiJustinijane Prima-e (VI vek). Najintenzivnija istraživanja izvršena su u periodu 1980–1982. ali samo na malom prostoru krajnjeg jugoistočnog dela vulkanskog kompleksa.U Leckom vulkanskom kompleksu dominiraju andezitske stene i njihovi piroklastiti.Smatra se ...vulkanski kompleks, mineragenetske karakteristike, juvelirski mineralni resursi, nalazišta, potencijalnost, kvarc, ametist, ahat, kalcedon, jaspis, prognoza... Journal of Science, v. 295, p. 49-77. Yanev, Y., Todorova, S., Bardintzeff, J.-M. & Pichon, R. (1997): Andesitic obsidian from the Dambalak Oligocene volcano (Eastern Rhodopes). Comptes-Rendus Acad. Bulg. Sci., 50, 7, 41-44. Zenz J., Agates III, Bode Verlag, 2011, 656 pp. Zlatanović G., Ilić ...
... 21o i 22o istočne geografske dužine i na 43o severne geografske širine. Zahvata površinu od preko 700 km2. Maksimalna dužina kompleksa u pravcu S-J je >40 km, a maksimalna širina oko 25 km. Administrativno posmatrano, pripada Topličkom okrugu, Jablaničkom okrugu i, manjim delom, Kosovskom okrugu ...
... rudna tela silicijskog sastava, nisu značajnije tektonski poremećena. Na južnim padinama Bučumeta uočavaju se dva manja raseda koja se pružaju pravcem S–J, a Mineragenetske karakteristike i potencijalnost juvelirskih mineralnih resursa leckog vulkanskog kompleksa 41 približavaju se jedan drugom ...Zoran Ž. Miladinović. "Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-11)
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EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School
Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku... – Ontologies: RDF (Resource description framework), RDF Schema (Re- source Description Framework Schema, variously abbreviated as RDFS, RDF(S), RDF-S, or RDF/S), Web Ontology Language (OWL),5 etc.); – SPARQL query language- a semantic query language for databases able to retrieve and manipulate data ...
... | Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković | Infotheca | 2021 | | 10.18485/infotheca.2021.21.1.7 http://dr.rgf.bg.ac.rs/s/repo/item/0005143 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković. "EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.7
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Верификација етажних транспортера на угљеном систему – површински коп Дрмно
Тамара Андрејевић (2024)У савременом рударству, површински копови угља наилазе на различите проблеме које треба превазићи зарад добијања потребне количине угља. Као највећи потрошачи овог енергента јављају се термоелектране, где на основу овога можемо да закључимо колико су блиско повезани добра и континуирана производња на површинском копу и рад термоелектрана. Са циљем да се обезбеди стабилна и континуирана производња, потребно је да се направи добар одабир транспортера. У овом раду, за потребе верификације затезне чврстоће траке и снаге погона транспортера, коришћен је ...... y sea |Eloneees =s sabezo Bl hezbek 3 —a e __I el = JOA W |{1100 les |325 | ConveyorMo d LI a ! ı |-- -MNI OA a - [| w |r FI MNA F = LOLO === • [ % • t J H >= -EO = q KO b + N BenLoad CapcfyUbed eg NM E R i i N N N EI - - n g - - · ' š gE SS aB RE R" | s Material Ugalj ...
... as w _ ISO Belt Details Beh Speed 52 m/s Beh Width 1800 mm Beh Class ST2000 16x 8covers Bek Plies 0 Belt Safety Factor (Running) 97 M% BeltLoad Capacity Used |53.3 %| o 10 20 32 4 l 6 Belt Strength % Used (Running) ıi. I —s o 10 20 3a 4 e -j 7 LJ Bel Tensions & Takeup Mass Bffective ...
... BHTAJIHH 34 HOCTH3AFbC onpelbjeHor KkananreTa. J[Ba HajOurHuja npopauyHa 3a BepH(Q)aKanujy rpaHcmopTepa ca TpaKOM Cy HOFTOH TpaHcHopTepa, OJIHOCHO IIOTpeOHa cHara MOTOpa 3a IIOKpeTahbc TpakKe H Koe(bunujeHT cHrypHocTH Tpake Ha KHJIaPbe KOJH HoOKayyJe Jla J Jje 3aTe3Ha uBpcroha TpaKe JOBOJbBHa 34 I ...Тамара Андрејевић. Верификација етажних транспортера на угљеном систему – површински коп Дрмно, 2024
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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Projektovanje u hidrogeologiji
Dejan Milenić (2010)Dejan Milenić. Projektovanje u hidrogeologiji, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2010
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Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement
Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić,. "Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement" in International scientific conference Challenges in Applied Geology and Geophysics: 100th Anniversary of Applied Geology at AGH University of Science and Technology, Book of abstracts, Kraków, Poland, 10-13. Sep. 2019, Kraków, Poland : AGH University of Science and Technology (2019)
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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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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
... Excavators for Mining of Overburden, Coal and Partings; Krupp Fördertechnik GmbH: Essen, Germany, 2002. 18. Kolonja, B.; Torbica, S.; Ignjatović, D.; Stevanović, D.; Hamović, J.; Jovanović, M. Main Mining Project of Coal and Overburden Exploitation at the Underwater Mine ‘Kovin’ in the Undefended Part ...
... deposit, Serbia. Int. J. Coal Geol. 2016, 168, 80–107. [CrossRef] 23. ISRM. Suggested Method for Determining the Uniaxial Compressive Strength and Deformability of Rock Materials; International Society for Rock Mechanics and Rock Engineering: Lisbon, Portugal, 1979. 24. Radojević, J. Rock Mechanics; ...
... Marijanac, S.; Makar, N.; Jovanovic, B.; Stjepanovic, P. Maintaining the functionality of the coal settling basin at the underwater pit Kovin. Min. Met. Eng. Bor 2016, 1, 95–102. [CrossRef] 21. Zivotic, D.; Cvetković, O.; Vulić, P.; Gržetić, I.; Simić, V.; Ilijevic, K.; Dojčinović, B.; Erić, S.; Radić ...Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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Praktikum iz kvaliteta podzemnih voda
Jana Štrbački (2022)Jana Štrbački. Praktikum iz kvaliteta podzemnih voda, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2022
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The Use of the Omeka Semantic Platform for the Development of the University of Belgrade, Faculty of Mining and Geology Digital Repository
Under the regulations of the Ministry of Education, Science and technological Development, a digital repository based on the Omeka S data storage platform has been developed for the Faculty of Mining and Geology. The platform has been upgraded with the required modular extensions, Solr index and automatic OCR. Furthermore, document indexing and search have been fine-tuned with the aid of e-dictionaries of the Serbian language, which has brought about outstanding results in terms of usage facilitation and overall ...Petar Popović, Mihailo Škorić, Biljana Rujević. "The Use of the Omeka Semantic Platform for the Development of the University of Belgrade, Faculty of Mining and Geology Digital Repository" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2020.20.1_2.9
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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 ...... Increasing the 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 ...
... /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 ...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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Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes
... according to activity duration, by means of the following expressions [8]: P ij = (TL)j − (TE)i − tij (5) S ij = (TE)j − (TE)i − tij (6) Energies 2016, 9, 1071 13 of 20 N ij = max {0, (TE)j − (TL)i − tij} (7) Based on the defined duration times for the activities, we analyzed the duration of activities ...
... Benefits; John Wiley & Sons Inc.: Hoboken, NJ, USA, 2001. 23. Janackovic, G.; Savic, S.; Stankovic, M. Selection and ranking of occupational safety indicators based on fuzzy AHP: Case study in road construction companies. S. Afr. J. Ind. Eng. 2013, 24, 175–189. [CrossRef] 24. Lekic, D.; Jovanovic, M. Report ...
... 494–517. [CrossRef] 30. Stefanovic, G.; Skrijelj, H.; Ristovic, I.; Milutinovic, B.; Milosevic, O.; Popovic, S. Sustainable Waste Management Model—Case Study: Novi Pazar. J. Environ. Prot. Ecol. 2014, 15, 1005–1012. 31. International Organization for Standardization. ISO 31000:2009—Principles and Guidelines ...Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović . "Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes" in Energies (2016). https://doi.org/https://doi.org/10.3390/en9121071
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Tektono-termalna evolucija kontakta Dinarida i Karpato-Balkanida u području Jastrepca
Dalibor Erak (2019)Predmet istraživanja doktorske disertacije je tektonska evolucija područja planine Jastrebac u centralnoj Srbiji, gde višefazna tektonska aktivnost od mezozoika do danas komplikuje rekonstrukciju strukturnih odnosa i geološke evolucije ovog prostora. Kompleksna višefazna evolucija planine Jastrebac u Srbiji je demonstrirana kombinovanjem kinematskih podataka prikupljenih na terenu i mikrostrukturnih opservacija sa dodatnim termohronološkim podacima “fission track” i podacima odredbe starosti metodom U-Pb na cirkonima. Gornjokredna ekshumacija bila je praćena gornjokredno-eocenskim navlačenjem i magmatizmom vezanim za kontinentalnu koliziju, pri čemu je akreciona ...... 7556000 7560000 7564000 rH, = ; a: Biss) ; x Stepos ; Zitkovac N o ae E 3 all / S ( LR > 3 3 7 Eg’ O enoyae iB = & j * LS \ is ) E Edo LS Oo $ } oO \ \ 1s ‘ in \ : ; FS \} ace rf ‘s \ ol j + Px ey? i ae Se \ x * “ OM \S 3 Age ea \ ; 7544000 7548000 7552000 7500000 7504000 #7508000 7512000 7516000 7520000 ...
... Đoković, I., Toljić, M., Spahić, D., Milivojević, J., 2007. Extensional Unroofing of the Veliki Jastrebac Dome (Serbia). Annales Geologiques de la Peninsule Balkanique 68, 21-27. Matenco, L., Toljić, M., Senecio, S., Chadwick, J., Leonide, P., Schmid, S., 2010. Field guide : Dinarides (Code: 450229) ...
... for the geodynamic evolution of the Balkan Peninsula. International Journal of Earth Sciences 100, 1181-1206. Schefer, S., Egli, D., Missoni, S., Bernoulli, D., Gawlick, H.-J., Jovanović, D., Krystyn, L., Lein, R., Schmid, S.M., Sudar, M., 2010. Triassic sediments in the D. Erak: Tektono-termalna ...Dalibor Erak. Tektono-termalna evolucija kontakta Dinarida i Karpato-Balkanida u području Jastrepca, Beograd : Rudarsko-geološki fakultet, 2019
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Part of Speech Tagging for Serbian language using Natural Language Toolkit
Ranka Stanković, Boro Milovanović (2020)Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...... Gorana Marković for proofreading the manuscript. REFERENCES [1] J. Devlin, M. Chang, K. Lee, and K. Toutanova, “BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding,” Oct. 2018 [2] Z. Lan, M. Chen, S. Goodman, K. Gimpel, P. Sharma, and R. Soricut, “ALBERT: A Lite BERT ...
... BERT for Self-supervised Learning of Language Representations,” Feb. 2020 [3] Z. Zhang, J. Yang, and H. Zhao, “Retrospective Reader for Machine Reading Comprehension,” Jan. 2020 [4] B. Li, N. Jiang, J. Sham, H. Shi, and H. Fazal, “Real-world Conversational AI for Hotel Bookings,” Proc. International ...
... funded by the Horizon 2020 Framework. https://www.distant-reading.net/, Mar. 2020 [13] M. d. Marneffe, T. Dozat, N. Silveira, K. Haverinen, F. Ginter, J. Nivre, and C. D. Manning, “Universal Dependencies: A cross-linguistic typology,” Proc. Ninth International Conference on Language Resources and Evaluation ...Ranka Stanković, Boro Milovanović. "Part of Speech Tagging for Serbian language using Natural Language Toolkit" in 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020, Academic Mind, Belgrade (2020)