Претрага

Упит dcterms_creator_txt:Jovan R. Kovačević

924 items

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... after which, the land becomes ! University of Belgrade - Faculty of Mining and Geology, Djusina 7 E-mail: radmila.gacinaeergf.bg.ac.rs 28 Gaćina R. unproductive. Mining activities have a high risk of environmental damage and create environmental justice issues, which have become a global concern ...
    ... ecological niches; – to meet aesthetic requirements; – to meet the present and future needs of the local population and the region”. 30 Gaćina R. Considering the concept of recultivation, the analysis of researchers" views on the concept of “recultivation” shows that it is increasingly being ...
    ... take the necessary measures to protect the resources of the deposit, the surface of the earth ..., successively carry out reclamation 32 Gaćina R. of post-mining areas and restoration of other natural elements to the proper state (Environmental Law , art. 126). 4 LEGAL FRAMEWORK IN SERBIA ...

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)

  • Просторни положај лежишта угља Ђурђевик: геофизичко-геолошки модел

    Синиша Арсеновић (2019)
    Лежиште угља Ђурђевик представља источни део Бановићког угљеног басена и припада северној страни босанске офиолитске зоне унутрашњих Динарида у чији састав улазе стене палеозојске, мезозојске и кенозојске старости. Језерска доњомиоценска угљоносна серија изграђена је од лапоровито-глиновитих седимената са једним слојем мрког угља. Дебљина угљеног слоја креће се у интервалу од 5 до 25 m са генералним правцем пружања СЗ - ЈИ и падом према ЈЗ. У зони обухваћеноj геофизичким истраживањима изражена je пострудна тектоника у виду раседа мањег и ...
    рефлективна сеизмика, 3Д геофизичко-геолошки модел, угаљ, синтетички модел, моделирање

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... - x s _ LIA LL [4.] lO r A 60 x 009% P > s LLLI 801 tl il 00 lO 0 0 0 6 089% t s r 4 |4| 6cl LI 00 [4%]] #0 0 0 6 089% [ . ı 06 OI tl 00 c O I 0 0 6 0/9% 1-S [A] INI b{4| tl LO b O r N 0 0 0OS9% 9L-LL 9 I ...
    ... 27—–28 (in Serbian) Siegesmund S, Snethlage R (2011) Preface. In: Siegesmund S, Snethlage R (ed) Stone in architecture: properties, durability, 4th edn. Springer, Berlin, pp v-vii Siegesmund S, Torok A (2011) Building Stones. In: Siegesmund S, Snethlage R (eds) Stone in architecture: properties, ...
    ... durability, 4th edn. Springer, Berlin, pp 1196 Snethlage R (2011) Natural Stones in architecture: introduction. In: Siegesmund S, Snethlage R (ed) Stone in architecture: proper- ties, durability, 4th edn. Springer, Berlin, pp 110 SRPS B.B8.032 (1980) Testing of natural stone—determination ...

  • Геолошке карактеристике лежишта нафте која се експлоатишу еруптивном методом

    Милица Милићевић (2024)
    Геолошке карактеристике специфичних лежишта утичу на различите начине на ефикасност еруптивне методе. Најзначајније геолошке карактеристике које делују на еруптивну методу јесу порозност, пропусност, тип лежишта, резервоар стијене, као и тип замки. Еруптивна метода подразумјева коришћење природног притиска ради лакше експлоатације нафте и гаса из резервоара. У завршном раду су приказани различити типови лежишта и њихове геолошке карактеристике, као и предности и недостаци еруптивне методе код истих.
    слојна лежишта, масивна лежишта, зонарна лежишта, геолошке карактеристике, еруптивна метода
    ... MeToJI KojH ce 3acHHBa Ha rpe/jiBHamby yKynHor noOarkKa HaQ(pTe R rpu ojHocuMa BojJnie H Ha(e oji 1, 5, 25 a 100 6apena Ha Oapem. Cmaka 11 npukayyje npejutroxeHe rpaQmMuke raOmMme 3a OBa ueTHpH oja0paHa OJiHoca BoJIe H Ha(pTe: R - KynHu (bakTop no0OHjama Ha()Te Svi – TroueTHa 3acHheHOCT BOJIOM ...
    ... mepHojma xHjaTyca (rpekHa cenMMeHrTanuje). Takobe cy y rTaPby CTDpyKTypHa y3BHIIePba, aJiH KOJI BX pacjenambe HHJe OHJIO IIpecy)lHO, KaO y cnyuajy r peKpHBeHuHx XOpcToBa, Beh je IpBoOHTHH OOJK majneopeJbeQa Hacrao yOuMpaĐeM ceHMcHaTa IHIpeTXOJHHOT IDHKJIyCa CCJMHMCHTAIHJE HJIH HOJL yTHHAJeČM epoauje ...
    ... H onHoca TIOKpeTJbHBOCTH (M) 3a KOHKPpeTHO JIeXuHITe HJIH pe3epBoap. • Kopumrheme rpaQaMkKoHa 3a HapauyHaBabe yKyTHor (bakTopa oropaBka Ha()Te (R): KopuacraruH rpaQHkKoHe 34 OJIHOCe BoJIe H Ha(pTe oJi 1, 5, 25 a 100 Gapena Ha Gapezn (Curka 11). 17 Ha rnipBMjep, yKoJmiKko je noTpeOHo ojipenaurH ...

  • Production of morphological dictionaries of multi-word units using a multipurpose tool

    Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas (2011)
    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, multi-word units, noun phrases, query expansion

  • Towards Automatic Definition Extraction for Serbian

    Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić (2021)
    U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...

  • Утицај обртног магнетног поља на дерацемизацију кристала натријум-хлората

    М. Милојевић, А. Жекић, П. Дабић, Б. Вучетић, Б. Максимовић (2023)
    ... Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, O. R. Klisurić, M. M. Mitrović, A. A. Žekić, 4CS omega, 7 (2022) 47701— 47708. XXVIII Koudepennuja Cpnckor kpacranorpa(ockor JnpyrrrBa Oral Presentations ...
    ... Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, O. R. Klisurić, M. M. Mitrović, A. A. Žekić, 4CS omega, 7 (2022) 47701— 47708. 289 Conference of the Serbian Crystallographic Society ...

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • 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 ...
    ... Proceedings/ 11. Stanković, R., Krstev, C., Obradović, I., Kitanović, O.: Indexing of Textual Databases Based on Lexical Resources: A Case Study for Serbian. In: Semantic Keyword-based Search on Structured Data Sources, pp. 167–181. Springer (2015) 12. Stanković, R., Krstev, C., Obradović, I., ...
    ... Stanković, R., Obradović, I., Krstev, C., Vitas, D.: Production of morphologi- cal dictionaries of multi-word units using a multipurpose tool. In: K. Jassem, P. W. Fuglewicz, M.P., Przepirkowski, A. (eds.) Proceedings of the Computational Linguistics-Applications Conference. pp. 77–84 14. Stanković, R., Trivić ...
    ... in the knowledge era: Knowledge management and Semantic Web technologies. Library Management 26(4/5), 170–175 (2005) 7. Obradović, I., Stanković, R., Utvić, M.: An Integrated Environment for Development of Parallel Corpora. Die Unterschiede zwischen dem Bosnis- chen/Bosniakischen, Kroatischen und ...

  • 125 years of the Serbian Geological Society (1891-2016)

    Rundić Ljupko, Stevanović Zoran (2017)

  • Development Trends in the MiningIndustry

    Jovančić Predrag, Milisavljević Vladimir (2017)

  • Pretpostavke i metodologije restruktuiranja industrije uglja

    Maksimović Svetomir, Miljanović Igor (2013)

  • Геологија планине Козаре

    Грубић Александар, Цвијић Ранко, Цветковић Владица, Шарић Кристина, Милошевић Алексеј"" (2018)

  • Геологија планине Козаре

    Грубић Александар, Цвијић Ранко, Цветковић Владица, Шарић Кристина, Милошевић Алексеј"" (2018)

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija
    ... O., 135-158, Springer, New York, 2005. Iverson R. M. ( 2012) Elementary theory of bed‐sediment entrainment by debris flows and avalanches, J. Geophys. Res., 117, F03006, doi:10.1029/2011JF002189. Iverson R. M., Reid M. E., Logan M., LaHusen R. G., Godt J. W., and Griswold J. G. (2011) Positive ...
    ... calculation of the In den Arelen avalanche with RAMMS: Interpretation of model results. Annals of Glaciology. Christen M., Bühler Y., Bartelt P., Leine R., Glover J., Schweizer A., Graf C., McArdell B.W., Gerber W., Deubelbeiss Y., Feistl T., and Volkwein A. (2012) Integral hazard management using ...

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic