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Упит dcterms_subject_txt:rock breakage by explosives

1101 items

  • Стратешко планирање функционалности подземних просторија моделом прогнозе деформација

    Лука Црногорац (2023)
    Релативно велике деформације подградне конструкције у подземним рудницима угља у Републици Србији представљају један од главних проблема за постизање планиране производње угља. Деформације подграде су директна последица статичких и динамичких оптерећења стенске масе и у многоме зависе и од времена трајања изложености подграде утицају подземног притиска. Код ниско механизованог радног процеса долази до повећаног излагања подземних просторија утицају подземног притиска услед дугог производног циклуса који је често пропраћен застојима у раду. Веома често подземне просторије се санирају и по ...
    подземне просторије, подграда, прогноза деформација, стратешко планирање

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Edited by Jacques Сапоић5, Alice Aureli and Jean Fried Transboundary Water Resources Management Multidisciplinary Approach Edited by Jacques Canoulis, Alice Aureli, and Jean Fried T'ransbou ndary Water Resou rces ...
    ... characterized today by a static groundwater table lower than 10 m below the surface. The conceptual hydrogeological model includes five main acluifer layers to a depth of some 2500m (Figure 4.9.2). The first two (Quaternary and Upper Pliocene), which are most prominent and characterized by the presence ...
    ... bian Transboundary Aquifer (SUDEHSTRA) was carried out from lune 2007 till August 200g. It was one of the cross-border cooperation programmes funded by the European union (ERDF/INTERREG IIlA/Community Initiative)whose objective andtasks were fully in line with the EU water Framework Directive (wFD; EC ...

  • From post-disaster landslides inventory to open landslides data

    Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić (2021)

  • An oilfield in Libya: A new model to enhance waste water disposal

    Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković (2016)
    нафта, лежишне воде, припрема

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface

    Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)
    Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...
    multiword expression lexicon, corpus, proof-of-concept lexicon encoding

  • Contribution to the geotechnical classification of municipal waste landfills in Serbia

    Dragoslav Rakić, Irena Basarić, Laslo Čaki, Slobodan Ćorić (2018)
    Management, Monitoring, Policy and Law, Nature and Landscape Conservation, Geochemistry and Petrology, Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental Engineering

  • Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?

    Ана Младеновић, Јелена Ћалић (2021)
    ... that will help to quantify fault activity rate. Preliminary results show that the research area is characterized by strike-slip tectonics, most likelyresulting from far-field stress generated by the collision of the Adriatic microplate, the Moesianindenter and the tectonic units in-between. Such stress field ...
    ... suspectedthat some of these fault systems are also active in recent times. Relatively complex geological structure and existence of a large number of rock discontinuities, aswell as relatively long time during which these geological units have been exposed on the surface,led to intensive karst process ...
    ... kinematics in this part of the Carpatho-Balkanides. These preliminary conclusions are also of high importance for seismic hazardcharacterization. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...

  • Sinteza i karakterizacija nanoprahova u CeO2-Bi2O3 sistemu

    Marija D. Prekajski (2014-04-04)
    Nanoprahovi kristalnih faza iz serije čvrstih rastvora u pseudo-binarnom sistemuCeO2-Bi2O3 sintetisani su primenom jednostavne i ekonomične samopropagirajućemetode na sobnoj temperaturi korišćenjem nitrata metala i natrijum-hidroksida kaopolaznih supstanci. Osim krajnjih članova niza, CeO2 i niskotemperaturne polimorfnemodifikacije α-Bi2O3, sintetisani su i čvrsti rastvori nominalnog sastava Ce1-xBixO2-δ,gde je x = 0,1; 0,2; 0,3; 0,4; 0,5; 0,6; 0,7; 0,8; 0,9. Rezultati proučavanja metodomrendgenske difraktometrije na polikristalnom materijalu i ramanske spektroskopskeanalize pokazali su da su sintetisani prahovi sa nižim sadržajem bizmuta (x = 0,1 ...
    nanostrukturni materijali, čvrsti rastvori, CeO2, Bi2O3, rendgenskadifraktometrija praha, Ritveldova metoda, mikrostrukrurna analiza

  • The influence of rainfall factors on soil resistance to erosion

    Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek (2024)
    rainfall, rainfall factors, erosion, soil

  • Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia

    Pavle Tančić, Aleksandar Kremenović (2022)
    Four macroscopically visible B–E (rim) zones, within a large natural ferric grossular garnet of Grs58–64Adr36–42 Sps2 composition, are described by means of Rietveld refinements of the crystal structures in a series of six space groups, followed by com parative analysis of the R-values, site occupancy factors, and bond lengths and angles. The garnet crystallized in the rhombohedral R63c space group. Various polyhedral distortions and structural or derdis or dervariations between the zones studied are also described and discussed. The ...
    Geology

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... with new achievements. Web Geological map of Serbia 1: 1M is available by Internet at http://gzs.rgf.rs:6080/arcgis/rest/services/RGF_GZS_Bedrock_and_Superficial_Geology/MapServer Acknowledgments This work was supported by the “One-Geology Europe Plus” project. http://gzs.rgf.rs:6080/arc ...
    ... accordance with new achievements. Web Geological map of Serbia 1: 1M is available by Internet at http://gzs.rgf.rs:6080/arcgis/rest/services/RGF_GZS_Bedrock_and_Superficial_Geology/MapServer Acknowledgments This work was supported by the “One-Geology Europe Plus” project. image4.jpeg image5.jpeg image6.jpeg ...
    ... onegeology.org/ http://pubs.usgs.gov/of/2007/1285/pdf/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 ...

  • Polymorphism and photoluminescence properties of K3ErSi2O7

    Predrag Dabić, Marko G. Nikolić, Sabina Kovač, Aleksandar Kremenović (2019)
    alkalni silikati elemenata retkih zemalja, silikati lantanoida, polimorfizam, fotoluminescencija, kristalna struktura

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... contents of Ca, Fe and Mn in samples 45/601 and 52/603, followed by a higher Si/Al ratio. The lignite from the Ib layer is characterised by moderate to high ash and sulphur con­ tents, while the upper (Ia) layer is characterised by moderate ash and sulphur contents and variable amounts of Ca and Fe ...
    ... The Kovin lignite is characterized by high mois- ture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron ...
    ... the nomenclature adopted by the ICCP (1993) and TAY­ LOR et al. (1998). Polished blocks for maceral analyses were prepared accord­ ing to ISO 7404­2 (2009) and performed according to ISO 7404­3 (2009). The identification of macerals followed the nomenclature developed by the International Committee ...

  • Burnishing Versus Smoothing In Ceramic Surface Finishing: A Sem Study

    Ionescu Corina, Volker Hoeck, Crandell Otis N., Šarić Kristina (2014)
    From the Neolithic up to the present, people have used various methods to improve the surface of ceramic objects. In this study, we look specifically at smoothing and pattern burnishing of ceramics produced today by traditional methods. Optical microscopy and SEM show specific surface changes. Smoothing results in an irregular surface, which causes diffused reflection of light. Burnishing produces an even and compact surface, which causes specular reflection and lustre. The results can be used to infer methods of ...

  • Развој алгоритма процене ефеката ризика рада рударских машина на бази фази алгебре

    Dejan V. Petrović (2014-12-30)
    Појава изненадних отказа елемената техничких система у рударству је свакодневна појава...
    ризик, поузданост, технички систем, рударске машине, отказ, фази скупови, фази логика

  • Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations

    Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković (2024)
    The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...
    dip-slip faults, vertical gravity gradients, field data analysis
    ... fault type determination. Comprehensive review of Various approaches to the analysis and interpretation of gravity anomalies caused by fault structures was given by Essa et al. (2021), who developed a method for the assessment of fault parameters from the gravity anomaly data using the global particle ...
    ... Nadezhda Gatina,Anatoliy Saprygin, Svetlana Redina, Milica Yankovic BIOSTRATIGRAPHIC CHARACTERISTICS OF SEDIMENTS IN BOREHOLE B-70 AT THE TETIMA ROCK SALT DEPOSIT (BOSNIA AND HERZEGOVINA) Zijad Ferhatbegović, Izudin Đulović, THE GEOLOGICAL PHENOMENA OF SALDA LAKE (BURDUR-TURKIYE Toni Nikolic ...
    ... Sretković, Ivana Pasiljević, Dimitry Sidorov - Biryukov Munepa;nu pecypcu u EKoH0McKa reo.toruja A REVIEW OF STRATIGRAPHY CHARACTERISTICS OF THE MAIN ROCK UNITS IN THE BOR METALLOGENIC ZONE AND THEIR LINK WITH MINERALIZATION Miodrag Banješević, Dragana Bosić PYRITE AND MARCASITE IN THE LOW-SULFIDATION ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... ns. - The Repository is available at: www.dr.rgf.bg.ac.rs PROŠIRIVANJE UPITA ZASNOVANO NA LEKSIČKIM RESURSIMA QUERY EXPANSION SUPPORTED BY LEXICAL RESORCES Ranka Stanković, Univerzitet u Beogradu, Rudarsko-geološki fakultet Ivan Obradović, Univerzitet u Beogradu, Rudarsko-geološki ...
    ... Human Language Technology Group at the University of Belgrade can be used for improvement of queries. Search results can be substantially improved by using various lexical resources, such as morphological dictionaries and semantic networks. The outlined approach may be used within the System of ...
    ... software tool that has already been developed and used for solving different tasks within the Group, and a web application named WS4QE, accompanied by several web services, that enables the solution of various tasks via the web. Besides a short description of the lexical resources for Serbian involved ...

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... retention and ease retrieval memory (Nation 2003 22). By making extensive use of dictionaries and exposure to relevant items, this type of learning builds up deeper knowledge, and from a cost vs. benefit view, cost of teaching them is justified by the resulting benefit (Nation 1998, 203). Crick has ...
    ... php?id=219&lang=sr Abstract: This article addresses the standpoint of pedagogical appropriateness of teaching mining and geology terminology by means of flashcards and the aid of L1 in the CLIL classroom. Our original intent is to provide a method whereby a great deal of complex mining and ...
    ... has suggested (Crick 1979, 220) that we have limited ability to process but a vast ability to store things in our brains. By having a huge store of ready-made language, available through flashcards, we are saving our limited processing capacity for dealing with other cognitive tasks. If this position ...

  • Palaeoflora of Kamenica (Pranjani Basin, western Serbia)

    Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević (2019)
    Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...
    макрофлора, млађи олигоцен, Прањански басен, Каменица
    ... Basin covers an area of 45 km2 and is elongated in an east-west direction (Fig. 1). On the southeast it is limited by the slopes of Maljen and Suvobor, while the north side is framed by peridotit-serpentine massif. (ereMIja et al., 1977). according to the changes of lithological compo- sition it is ...
    ... part of the basin (the village of Kamenica) and it consists of well cemented conglomerates and breccias lying directly over the peridotite-serpentine rock. above them is a sequence of alternating sandstones, con- glomerates and marlstones. Well preserved remains of fossil plants and fish have been found ...
    ... 2), the position of Neogene basins mostly coincides with low gravity values, but it is not a general case. Gravity anomalies are strongly influenced by the complex configuration of the basin basements and surrounding geology, im- plying a relatively shallow basin depth. The location of the Kamenica ...