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Упит dcterms_subject_txt:rock breakage by explosives

1106 items

  • 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 ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... Geol. Environ. 2015, 75, 1617–1627. [CrossRef] 8. Zarei, H.R.; Uromeihy, A.; Sharifzadeh, M. Evaluation of hight lokal groundwater inflow to a rock tunnel by charactization of geological features. Tunn. Undergr. Space Technol. 2011, 26, 364–373. [CrossRef] 9. Chen, Y.F.; Hong, J.M.; Zheng, H.K.; Li ...
    ... Group: Denver, CO, USA, 2013. © 2019 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 (http://creativecommons.org/licenses/by/4.0/). ...
    ... which are represented by a system of east-vergent thrusts. The most significant is the Vidlič thrust, which the tunnel intersects (Figure 2). The study area is mostly built up of carbonate sediments of the Triassic, Jurassic and Cretaceous ages. The Triassic deposits are represented by limestones, dolomites ...

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje
    ... occupied position X in the reference state. We obtain δu(X, t) by spatial bicubic spline interpolation (similarly as Stanier et al. 2016) as δu is provided on a regular grid by PIV. Fig. 1 shows how the original material frame has been deformed by incremental displacements, and how interpolated displacements ...
    ... tensors (eq. 23) by: U = √ C V = √ B (29) U and V have the same principal values λi, and these are related to the principal values μi of C and B by λi = √ μi . The direction of the principal axes of U and V are however different, due to the rotation of R, see Fig. 4. U and V are computed by polar decomposition ...
    ... tensors (eq. 23) by: U=VC V=vB (29) U and V have the same principal values 4;, and these are related to the principal values 4; of C and B by A; = ,/4;. The direction of the principal axes of U and V are however different, due to the rotation of R, see Fig. 4. U and V are computed by polar decomposition ...

  • A hundred years of Milutin Milanković's climate change theory - geological implications

    Dejan Radivojević (2020)
    Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...
    циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт
    ... or theory of relativity (PETRovIć & MARKovIć 2010). Milanković’s work was noticed by meteorologist and astronomist interested in geo- physics, Alfred Wegener, and climatologist vladimir Petrovič Köppen. Köppen impressed by calculation of secular thermal change, invited Milanković to con- sider the periods ...
    ... 8. Assumed temperature during the Phanerozoic (FErGUS, 2015), the Cenozoic (bottom left, courtesy by roBErT A. roHdE, Global Warming Art) and in the last 5.5 million years (bottom right, courtesy by roBErT A. roHdE, Global Warming Art). 2006). The Isthmus of Panama and closing of the In- donesian ...
    ... climatologists since it represents the excellent analogue for climate prediction modelling. The PETM is marked by a short (100.000 years) clear drop in value associated with sudden warming and was marked by the high- est temperature during the Cenozoic. Even though, its causes are not clear, some scientists suggest ...

  • Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    ... A u th o r C o p y • (10 μg/L). About 500,000 consumers are affected by drink- ing water containing As above this limit [7]. According to previous research, in Romania about 50,000 people are affected by high concentrations of arsenic in drinking water (0-176 µg/L) [8]. Croatia is also ...
    ... Basin is a continental lowland surround- ed by mountains. It extends over a length of some 600 km in an west-east direction, from the eastern edges of the Alps in Austria and Slovenia to the Carpathian Mountains in Romania. In the south, the basin is bordered by the North Dinarides in Croatia, Bosnia and ...
    ... and Herzegovina, and Serbia, and in the north by the Tatras in Slovakia. The Danube River is also the western boundary toward Croatia, while to the north and northeast the South Pannonian Basin (Vojvodina) is bordered by Serbia’s state frontiers with Hungary and Romania. The surface area of Vojvodina ...

  • Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia

    Bojan Kostić, Pavle Tančić, Natalija Batoćanin (2024)
    geohemija granata, retke zemlje, fluidne inkluzije, skarnovsko ležište Rudnik

  • Microstructural and magnetic properties of electrospun hematite/cuprospinel composites

    Mira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić (2020)
    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 Materials

  • First paleomagnetic and magnetic anisotropy results from Montenegrо - the coastal area

    Emö Márton, Vesna Cvetkov, Martin Đaković, Vesna Lesić, Slobodan Radusinović (2021)
    ... magnetic signals.This work was financially supported by the National Development and Innovation Office ofHungary project K 128625, by the Geological Survey of Montenegro and Ministry of Science andEducation of Serbia project No. 176016. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...
    ... waterCretaceous carbonates, bauxites, Middle Eocene nummulitic limestones, transitional marls, andUpper Eocene flysch. It is thrusted over by the Budva zone characterized by deep water sedimentsof Triassic through Paleogene ages with tuffitic layers in the Ladinian. The uppermost unit is theHigh Karst zone ...
    ... notdefine AMS fabrics, yet most of the localities yielded fairly good paleomagnetic results, whichsuggest pre-folding age of the acquisition followed by a large CW rotation of unit.From the High Karst, only a single Lower Jurassic pelagic limestone provided paleomagnetic results which exhibit CW rotation ...

  • The Rift Sequence Stratigraphy of the Itebej Field (Pannonian Basin, Serbia)

    Saša Ivanišević, Jelena Radišić, Ivana Isić, Dejan Radivojević (2019)
    ... post-rift system tract sediments represented by the Lake Pannon deep-water hemipelagic marls were deposit during the Pannonian sensu lato. The hemipelagic marls deposited in the Srpska Crnja Depression are the main source rock for Itebej field, while the source rock potential of the Badenian sediments is ...
    ... 33 deep wells. Pre-rift stage is represented by deep-water Late Cretaceous turbidites and Late Jurassic ophiolites (ophiolitic mélange) of the Eastern Vardar Zone. The boundary between the syn-rift depositional sequence and pre-rift stage is marked by unconformity at the bottom of Miocene sediments ...
    ... sediments. The rift initiation system tract was confirmed by several wells which drilled coarse siliciclastic sediments of the Early Badenian age. During the Middle Miocene after the early syn-rift stage, a “wide-rift” stage (Tari et al., 1999) marked by marine transgression began. All wells at the Itebej ...

  • Epidotized sanidine in quartzlatites from Grot

    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, kvarc latiti, sanidin, epidot

  • Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2

    Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)
    Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... specific receptor.9,14 It also stimulates extracellular matrix invasion by normal and cancer cells.15 In addition, this enzyme is a target protein for triggered liposomal drug delivery to tumor tissues.16 Anti-tumor therapy by transition metal complexes such as cis-platin, carbo- and oxaliplatin has ...
    ... phosphatidylcholines and lysoproducts (Fig. 2). The ruthenium complex is characterised by a couple of peaks from 565 to 573 with a peak at 569.3 having the highest intensity (Fig. 2A). This distribution is caused by the broad natural abundance of different ruthenium isotopes ranging from 96Ru to 104Ru ...
    ... had lost one chloride anion, followed by elimination of two neutral HCl molecules and addition of one more bipyridine ligand. The peak group around m/z = 498.6 corresponded to the sodium adduct of [PtCl4(bipy)] after replacement of one neutral HCl molecule by H2O. Fig. 3 Km (A and C), Vmax (B and ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... (Jelenković et al. 2016). The ore elements are mostly leached from the host rock (andesites and analogue plutonites; magmatic arc above the subduction zone or of the rifts over the subduction zone) in the convectional systems by fluids derived from the subducted oceanic plate and partly dehydrated ...
    ... zones including kaolinitization, decarbonatization of calcareous sedimentary rock and occasionally silicification. The gold mineralization is mostly hosted within a favourable sedimentary package which is underlain by Jurassic and Lower Cretaceous limestones (KLS limestone) and consists predominantly ...
    ... of the earth's crust possess a certain concentration of natural radionuclides, they can be expected to be found in the soil caused by the decomposition of the rock (Popovic and Spasic-Jokic, 2006). The motivation of the present study is to determine the characteristic values of activity conc ...

  • Mafic alkaline metasomatism in the lithosphere underneath East Serbia: Evidence from the study of xenoliths and the host alkali basalts

    Cvetković Vladica, Downes Hilary, Höck Volker, Prelević Dejan, Lazarov Marina (2010)
    Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks. Fertile xenoliths and tiny mineral assemblages found in depleted xenoliths have been investigated. Fertile lithologies are represented by clinopyroxene (cpx)-rich lherzolite and spinel (sp)-rich olivine websterite containing Ti–Al-rich Cr-augite, Fe-rich olivine, Fe–Al-rich orthopyroxene and Al-rich spinel. Depleted xenoliths, which are the predominant lithology in the suite of East Serbian xenoliths, are harzburgite, cpx-poor lherzolite and rare ...

  • Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm

    Zoran Gligorić, Miloš Gligorić, Igor Miljanović, Suzana Lutovac, Aleksandar Milutinović (2023)
    Information about the relative importance of each criterion or the weights of criteria can have a significant influence on the ultimate rank of alternatives. Accordingly, assessing the weights of criteria is a very important task in solving multi-criteria decision-making problems. Three methods are commonly used for assessing the weights of criteria: objective, subjective, and integrated methods. In this study, an objective approach is proposed to assess the weights of criteria, called SPC method (Symmetry Point of Criterion). This point ...
    Вишекритеријумско одлучивање, тежине критеријума, тачка симетрије критеријума, налазиште минерала, алгоритам, процена учинка

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... Zone and the Danubicum. 26th IUGG General Assembly, Prague, Abstracts, IUGG-1324. Lowrie, W. (1990). Identification of feromagnetic minerals in a rock by coercitive and unblocking temperature properties. Geophys- ical Research Letters, 17, 159–162. Marković, B., Pavlović, Z., Terzin, V., Urošević ...
    ... first and the present version of the manuscript. Also, helpful review by an anonymous referee is grate- fully acknowledged. This work was supported by the Ministry of Science and Education of Serbia (Project No. 176016) and by the Hungarian Scientific Research Fund OKTA K105245. References Bodrás ...
    ... suture (Schmid et al. 2008; Cvetković et al. 2016a). As mentioned above, the ancient Gondwana margin that became obducted by the West Vardar ophiolites is repre- sented by the Adriatic microplate. The Cenozoic rotation of this microplate with respect to Africa was in a counter- clockwise (CCW) ...

  • Long-term planning methodology for improving wood biomass utilization

    Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković (2019)
    The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...
    Long-term planning methodology, Forest biomass, MINLP, Backcasting

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... document retrieval from the database of geological projects financed by the Republic of Serbia. To that end documents in this large textual database are indexed using simultane- ously two methods: by generating a bag-of-words and by named entity recog- nition for each document. In the next section we ...
    ... dealing with “lignite coal in Tamnava region” by GeoliSS When performing faceted search, the users express their information need by selecting the facets and appropriate keywords, and they can combine any number of facets. Different facets are linked by conjunction, whereas for more than one keyword ...
    ... similarity between information need repre- sented by user query and document representations. The bag of words implies the representation of the document by a set of ungrammatical words—in our case nouns, adjectives, adverbs and acronyms—followed by their frequencies. Thus, the text generated for each ...