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Упит dcterms_subject_txt:rock breakage by explosives

1101 items

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... ana1y51s and occurred better than 0.07 and 0.12%o, for 612C and 6!SO, respectively. The calcium carbonate content of 376 rock samples was estimated by means of a calcimetre by Eijkelkamp, which Works in accordance with the method of Schcibler. The ana- lysis of CaCOy3 content was conducted at ...
    ... Unit Ždiarska Vidla P Belianske Tatra Mts, Slovakia. N49"14.588'; E20?12.636' calpionellid biostratigraphic scheme, proposed by Rehakova (2002), were adopted. The rock samples and the thin sections are stored at the Institute of Geological Scicnces, Jagiellonian University in Krakow. For the ...
    ... concentrations. As a consequence, the carbon isotopic record is less susceptible to alteration by burial diagenesis than the oxygen record (e.g., Banner and Hanson, 1990; Marshall, 1992). Usually, the rock-fluid al- teration during diagenesis results in a decrease of 6O val- ues, whereas diagenetic ...

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • Kristalografsko proučavanje strukturne desimetrizacije granata grosularsko-andraditske izomorfne serije

    Pavle I. Tančić (2016-09-21)
    U ovoj Doktorskoj disertaciji proučavano je pet različitih zona makroskopski zonarnog grandita sa lokaliteta Meka Presedla (Kopaonik, Srbija). Pomoću hemijske i elektronske analize mikroprobe preračunati su relativno visoko homogeni sastavi zona, t.j.: Grs64±1Adr36±1Sps2 (A), Grs62±1Adr38±1Sps2 (B), Grs59±2Adr40±2Sps2 (C), Grs58±2Adr41±2Sps2 (D) i Grs58±1Adr41±1Sps2 (E). Glavne promene u sastavima izražene formulom: Ca2,93-2,97Mn0,05-0,06Mg0,00-0,01Al1,14-1,26Fe3+0,72-0,83Ti0,00-0,02Si2,97-3,02O12 ukazuju da je jedina značajnija varijacija ustanovljena samo kod Al-Fe3+ raspodela u oktaedarskom položaju. Ovakav hemijski sastav je potvrđen i sa matematičkim proračunima iz IC i Raman analiza. Urađena ...
    Macroscopically zoned grandite, chemical analysis, electron microprobe analysis, Raman, Rietveld, structure, dissymmetrization, space group

  • Fizičko-hemijsko raspadanje krečnjaka ugrađenih u objekte Beogradske tvrđave i mogućnost konsolidacije

    Maja Z. Franković (2022)
    Beogradska tvrđava, spomenik kulture od izuzetnog značaja za Republiku Srbiju, izgrađena je od krečnjaka badenske starosti. Njihova litološka heterogenost, u sadejstvu sa uticajima okruženja, rezultira visokim intenzitetima raspadanja. Korelacijom intrinzičnih sa ekstrinzičnim faktorima, definisani su fizičko-hemijski procesi raspadanja ugrađenih mikrofacija krečnjaka. Aplikacijom neorganskih konsolidanata na karbonatnoj bazi (nano-kreča i Ca-acetoacetata) i alkoksisilana, te korelacijom fizičko-mehaničkih svojstava pre i nakon tretmana, ispitana je efektivnost u pogledu zaustavljanja dekohezije krečnjaka. Određivanjem petroloških, tehničkih svojstava i mapiranjem formi raspadanja Mračne kapije kao ...
    krečnjaci, forme i intenziteti degradacije, fizičko-hemijsko raspadanje, konsolidacija, nano-kreč, Ca-acetoacetat, alkoksisilani, Mračna kapija

  • Epidotizacija sanidina u kvarclatitima Grota

    Danica Srećković-Batoćanin, Suzana Erić, Nikola Novičić, Nikola Pašajlić, Natalija Batoćanin (2023)
    Propilitska alteracija je veoma česta u gornjokredno-tercijarnim vulkanitima Srbije. Kvarclatiti Grota, otkriveni na dubini od oko 550 m u jednoj od istražnih bušotina su holokristalaste porfirske strukture sa fenokristalima sanidina dimenzija i do 1,5 x 2 cm. Optičkim ispitivanjima su u kvarclatitu potvrdjeni i elementi sitaste, pojkilitske i glomeroporfirske strukture. Kao fenokristali prisutni su sanidin, plagioklas, kvarc, biotit i amfiboli. Sekundarni minerali su hlorit, epidot, coisit, Fe-hidroksidi, redak kalcit i ilit. U fenokristalima sanidina se zapažaju „lepeze“ izduženih kristala ...
    Grot, kvarclatiti, sanidin, epidot

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... corpora. The SrpKor2013 corpus is used by more than 700 users, mostly Slavists. 2.2 RudKor Systematic collection and preparation of texts from the mining domain started with English-Serbian alignment of articles in a bilingual journal “Podzemni radovi”, followed by mining projects, law regulations, PhD ...
    ... built by app. 28,000 literals are Princeton WordNet (PWN), except for 532 Balkan specific concepts that are connected with other Balkan languages, and 155 Serbian specific concepts that remain unconnected with other languages. Since the core of wordnets developed for Balkan languages was produced by translation ...
    ... Vol. 19, No. 2, December 2019 Scientific paper Figure 4. Oauth 2.0 Access Token Enforcement . overcome recall problems caused by tagging errors and limitations imposed by the format of a TreeTagger full-form lexicon. Each entry of the TreeTagger full-form lexicon contains one-word form and a sequence ...

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    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 ...
    hybrid systems, mine ventilation, expert systems
    ... (Rich, 1983). In the same way the characteristics of an object are represented by its attributes, frame characteristics are represented by its slots. Namely, slot values describe attributes of the object represented by the frame and its relations to other frames (objects) in the system. The objec ...
    ... desired analysis by SimVent can be exported to VENTEX – a diagnostic expert system that performs the analysis of obtained results according to a number of criteria. The result of such an expert analysis is an estimate of the validity and effectiveness of the ventilation system followed by suggestions for ...
    ... Its main characteristic is the separation of domain model and user interface. The domain model is represented by business services and data services, while the user interface is represented by user services. Figure 5 depicts the three-level class diagram architecture of the SimVent package. Fig. 5 ...

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    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
    ... tually (online) by several institutions: the Ro- manian Academy, the Research Institute for Artificial Intelligence in Bucharest and the In- stitute of Computer Science in Ias , i, as well as the “Alexandru Ioan Cuza” University of Ias , i, Romania. The training school was attended by 82 participants ...
    ... Ontology of the training school. . Each of the organized sessions was accompanied by a hands-on session and an exercise session. During the hands-on session, the lecturers proposed an exercise and offered a step-by-step walk-through for the participants to understand the methodology leading towards ...
    ... Data for Linguistics Online Training School UDC 81: 37.018.53 DOI 10.18485/infotheca.2021.21.1.7 ABSTRACT: The first training school or- ganized by the NexusLinguarum COST Ac- tion was held on February 8-12, 2021 and was aimed at students, academics, and practition- ers wishing to learn the basics ...

  • 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 ...
    ... (Rich, 1983). In the same way the characteristics of an object are represented by its attributes, frame characteristics are represented by its slots. Namely, slot values describe attributes of the object represented by the frame and its relations to other frames (objects) in the system. The objec ...
    ... desired analysis by SimVent can be exported to VENTEX – a diagnostic expert system that performs the analysis of obtained results according to a number of criteria. The result of such an expert analysis is an estimate of the validity and effectiveness of the ventilation system followed by suggestions for ...
    ... Its main characteristic is the separation of domain model and user interface. The domain model is represented by business services and data services, while the user interface is represented by user services. Figure 5 depicts the three-level class diagram architecture of the SimVent package. Fig. 5 ...

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... sand/sandy-clay basin-fill reservoirs. The bedrock of the basin in a wider study area is represented by all types of rock: metamorphic, igneous and sedimentary, whereas the Neogene-Quaternary complex is represented by conglomerates, sandstones, clay stones, marl, alevrolites, clay sediments, sands and pebbles ...
    ... rnary sediments [39]. Palaeozoic meta- morphites are in tectonic contact with low- and middle-Triassic rock [40]. In terms of its geothermal features, this part of the terrain is characterized by high geothermal gradients, particularly on the edges of Fruska Gora. These values range from 6 to 7.5 ◦C/100 ...
    ... affil- iations. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 University of Belgrade ...

  • Influence of Post-Synthesis Treatments on the Properties of Brushite/Monetite Powders

    Željko Radovanović, Lidija Radovanović, Aleksandar Kremenović, Đorđe Janaćković, Rada Petrović (2022)
    Dicalcium phosphate (DP) materials, of which brushite and monetite were the most known, have been intensively studied for several decades because of excellent resorptive and osteoconductive properties that can satisfy the requirements needed for various medical applications, such as bone cements, coatings of metallic implants and bone grafts ...

  • Electronic Dictionaries - from File System to lemon Based Lexical Database

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... previous section), supported by LeXimir, will be only one of the formats supported by the lexical database. The database will also provide for automatic pro- duction of dictionary editions for different profiles of users: full dictionaries, public-domain oriented, filtered by differ- ent criteria (e ...
    ... was designed following the lemon model. We also present how dictio- naries were automatically improved and enriched by intro- ducing new lexical entries and/or lexical relations, and by checking the existing ones. An NLP lexicon has little in common with human-oriented e-dictionary. Data structures ...
    ... derived from LMF, and has been designed for ontology lexicons on the Semantic Web. It is aimed at enriching the conceptualization represented by a given ontology by means of a lexico-terminological layer (McCrae et al., 2012). In order to enable sharing on the semantic web, and for interface with tools ...

  • Bridging Computational Lexicography and Corpus Linguistics: A Query Extension for OntoLex-FrAC

    Christian Chiarcos, Ranka Stanković, Maxim Ionov, Gilles Sérasset (2024)
    OntoLex, dominantni standard zajednice za mašinski čitljive leksičke resurse u kontekstu RDF-a, Linked Data i tehnologija Semantičkog veba, trenutno se proširuje sa posebnim modulom za Frekvencije, Primere i Informacije zasnovane na Korpusu (OntoLex-FrAC). Predlažemo novi komponent za OntoLex-FrAC, koji se bavi inkorporacijom korpusnih upita za (a) povezivanje rečnika sa korpusnim mašinama, (b) omogućavanje RDF baziranih web servisa da dinamički razmenjuju korpusne upite i podatke odgovora, i (c) korišćenje konvencionalnih upitačkih jezika za formalizaciju unutrašnje strukture kolokacija, skica reči i ...
    standardizacija, digitalna leksikografija, OntoLex, upiti korpusa, povezani podaci, Lingvistički povezani otvoreni podaci

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... stene obrazovani su direktnom eksplozivnom fragmentacijom, Synonym= Piroklastit, Hyperonym= 2123} {ID=12345, Name=Pyroclastic rock, Def=A volcanoclastic rock formed by direct explosive volcanic activity, OrigID=2356, Lng=EN) {ID=12367, Name= Roches pyroclastiques, Def= Une pierre volcanoclastiques ...
    ... WS4QE, by enabling a more elaborate query expansion that can significantly improve retrieval performances. The use of transducers is especially important in the case of compounds. For instance, if a query is performed with the compound keyword kvarcna stena ‘quartzose, quartz rock’, three ...
    ... all these operations. Data modeling is inspired by different geological models (Richard, Matti, Soller, 2003), interchange schemes (SEE Grid, 2009), and standards proposed by ISO TC211 (ISO, 2009). The design is also significantly influenced by the Ontology Web Language (OWL). GeolISS is implemented ...

  • Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović (2018)
    ... Bratislava, Slovakia Edited by: RNDr. MichalŠujan, PhD. Mgr. TamasCsibri Mgr. Peter Kiss Mgr. Samuel Rybar, PhD. Рераптепг ог беојоду апа Рајеотојоду Faculty of Natural Sciences ComeniusUniversity in Bratislava, Slovakia — АМВОРАБКОХТОРОСУ Conference wasorganized by: Geological Club, Bratislava ...
    ... drilled and oriented in situ both by magnetic and sun compasses. In the laboratory samples were cut into standard size specimens, then subjected to standard paleomagnetic measurements which included the measurement of the natural remanent magnetization, followed by the measurement of anisotropy of ...
    ... responsible for the large-scale extension in the southern Pannonianbasin. Acknowledgement: This work was supported by the Ministry of Science and Education ofSerbia (Project No 176016) and by the Hungarian Scientific Research Fund OKTA K105245. References: Marton, E. 2006. Paleomagnetic evidence for Tertiary ...

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... Geological exploration in Serbia is formally divided into basic geological explora- tion (financed by the state and performed by the Geological Survey of Serbia) and applied geological exploration, financed by private companies. Geological exploration and min- ing are under jurisdiction of the Ministry of ...
    ... affiliations. Copyright: © 2021 by the authors. Li- censee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and con- ditions of the Creative Commons At- tribution (CC BY) license (http://crea- tivecommons.org/licenses/by/4.0/). Resources 2021, 10 ...
    ... 10, 63 2 of 18 most permits are issued by the same Ministry. The approvals and permits are issued by the Ministry of Mining and Energy, while all approvals and permits for the territory of the Autonomous region of Vojvodina are issued by the Regional Secretariat for Energy and Mineral Resources ...

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    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
    ... expressed by three basic physical parameters, assuming. that the unit weight of water is known (y„ = 9.81 kN/m* ) as well as unit weight of solid particles (ys). The most common parameters are: dry unit weight (ya) expressed by weight-volume ratio - W„/V; porosity (n) expressed by volume ratio ...
    ... landfill Belgrade — Ada Huja (Rakić, 2013). All laboratory tests were performed on waste material that was taken from the landfills by exploratory drilling: or by digging exploratory pits. After that, the waste was sorted, classified and samples were prepared for further testing (Figure 1). Because ...
    ... ratio - V,/V and moisture content (w) expressed by weight ratio - W„/W.. All three parameters are defined by weight — W (or mass – m) and volume — V (Table 1). This concept is convenient because on its basis, other important physical parameters that arc used in geotechnical practice can be ...

  • Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

    Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić (2019)
    Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology
    ... and cherty limestones were processed in diluted (10%) hydrofluoric acid (HF) following the method by PESSAGNO & NEWPoORT, 1972 and DUMITRICA, 1970, residues were washed by water, then cleaned by hot water (10—15 g) with 0.5 g tetra- sodium pyrophosphate (Na„,P.,O,) to remove clay par- ticles ...
    ... represented by platy cherty limestone intercalated with marl and clay, in parts with coarser-grained al- lodapic layers and common chert nodules and layers, are known in the Internal Dinarides under the name of “Grivska Formation”. This formation was infor- mally established by DIMITRIJEVIĆ ...
    ... as Middle Triassic, Ladinian [ČIRIC', 1980), and were shown as surrounded by ophiolitic mćlange. Actually they are interpreted as large olistoliths. First correc- tions ofthe estimated Ladinian age range were made by SUDAR & GAwLICkK (2018] based on conodont inves- tigations. According to ...