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Упит dcterms_subject_txt:In Pit Crushing and Conveying

2365 items

  • 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

  • State and perspective of individual household heating in Serbia: A survey-based study

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...
    Domaćinstva, Individualni sistemi grejanja, Korišćenje energije, Stavovi potrošača, Anketa, Srbija

  • Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases

    Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić (2021)
    Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...
    Šifove baze, Lipofilnost, RP-TLC, Organski modifikatori

  • Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković (2021)
    The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...
    severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija
    ... lights. c–e — Top-NE normal sense of shear in the contact zone of the Serbo-Macedonian Massif and Supragetic units. Sampling site V2. Parallel-polarized lights in c and cross-polarized lights in d and e. f — Top-NE normal sense of shear in the Supragetic unit in cross-polarized lights. Sampling site V1 ...
    ... slight scattering around this value (SG-F in Fig. 3). Stretching lineation in the Supragetic Unit is very similar to those in the Serbo-Macedonian with trend/ plunge maximum in LSGA 020/17° and sub-maximum in LSGB 025/37° indicating local perturbations (SG-L in Fig. 3). Outcrop-scale deformations The ...
    ... of shear in top-ENE shear zones, observed by C-C’ structure in the Supragetic Unit (Fig. 4b). Similarly, top to ~ENE ductile shear zones with sigma and delta clasts of feldspars and quartz are observed in the Serbo-Macedonian in the vicinity of its Supragetic contact (e.g., Fig. 4c). In contrast ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... stored in the table Lexicon. These tables are shown in the Figure 1. The form ”Paris” is the same for singular and both male and female gender and it is stored in the Form table. The combination of grammatical categories (”ms” – (m) male (s) singular and (fs) – (f) female (s) singular) is stored in the ...
    ... other variation relations were established that are PoS in- dependent, and were appropriately marked in DELA dictionaries. They in- clude string substitution like in: filozofije+DER=ZS and filosofije+DER=SZ or string omission: halva+DER=Ho and alva+DER=oH (halvah). For them similar connecting rules ...
    ... categories are stored in Lex- imirka database. The lemma ”Parisien” is in the LexicalEntry table and all inflected forms are in the Form table. Every form is colored in the same manner as grammatical categories that describe it and all of combinations are stored in FormGramCats table. Each separated grammatical ...

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... disturbance and dissatisfaction); interference with certain daily activities (speech, sleep and learning); and physiological effect (anxiety, tinnitus, or in the worst case, hearing loss). Problems that have stood out in importance in practice so far relate to the acoustic impact of noise and sleep ...
    ... development and socio-economic aspects of development and to optimize the position of wind turbines in relation to the results obtained. Bearing in mind that the general approach to impact assessment in the SEA process in methodological terms is predominantly expert, qualitative and subjective ...
    ... carried out in the form of a special impact assessment and then incor- porated into a holistic approach in the consideration of interactions between the existing and planned purposes for a particular area in the SEA process, as shown in this paper for the aspect of noise. It is also necessary in order ...

  • 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
    ... Obrenovac and Čačak with sampling localities. The paleomagnetic localities/sites are numbered and referred to in the text and in Tables 1 and 2 200 V. Lesić et al. vertical-axis rotations, as can be suspected by looking at the non-linear shape of the Sava suture, especially in the area north ...
    ... lamprophiric and granitoid magma. In S. Karamata & S. Janković (Ed.), Geology and Metallogeny of the Dinarides and the Vardar zone, (pp. 255–267). The Academy of Sciences and Arts of the Republic of Srpska, Collections and Monographs, Book 1, Department of Nature, Mathematical and Technical Science ...
    ... block and Kopaonik Block and Ridge unit sensu Karamata (2006), or in other words to the West Vardar and Jadar–Kopaonik units sensu Schmid et al. (2008). Only a single locality (Cretaceous limestone at locality No. 8, see Fig. 2) is located in the East Vardar unit. The early geological and tectonic ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... post map of measuring data in zigzag fashion, N-S orientation, where data of each traverse were stored in a separate fi le. 105 Archaeology and Science 10 (2014)Petković et al - Advantages and Disadvantages of a Parallel...(93-110) Fig. 8 Contour map shown in Figure 7.a. in relative coordinates. Fig ...
    ... fi lter, in two steps, in the direction of acquisition and in the direction perpendicular to the direction of acquisition. Also, the absence of linear anoma- lies is observed using the non-linear interpolation method. In this case, the local polynomial method proved to be the best. In order to avoid ...
    ... Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research Mirko Petković, Vesna Cvetkov, Branislav Sretenović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Advantages and Disadvantages ...

  • Novel cerium and praseodymium doped phosphate tungsten bronzes: Synthesis, characterization, the behavior in the Briggs-Rauscher reaction and photoluminescence properties

    Tijana Maksimović, Pavle Tančić, Jelena Maksimović, Dimitrije Mara, Marija Ilić, Rik Van Deun, Ljubinka Joksović, Maja Pagnacco (2023)
    Due to the interesting and potentially useful properties, phosphate tungsten bronzes are constantly being studied and attract a lot of attention. In the present work, two different metallic elements, belonging to the group of rare-earth metals, cerium and praseodymium, were used as a dopants for phosphate tungsten bronzes. Novel cerium and praseodymium doped phosphate tungsten bronzes were successfully synthesized and further characterized by thermal analyses, Fourier-transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectrometer and ...
    Electrical and Electronic Engineering, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic Materials, Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Spectroscopy

  • Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda

    Đorđije M. Božović (2023)
    Predmet istraživanja doktorske disertacije su bunari sa horizontalnim drenovima beogradskog izvorišta podzemnih voda, drugog najvećeg izvorišta ovog tipa na svetu, čiji je režim rada opterećen procesima intenzivnog starenja prisutnog od samog početka formiranja izvorišta, početkom 1950‒ih godina. Istraživanja sprovedena u okviru izrade disertacije su imala za cilj definisanje nove metodologije izučavanja procesa mehaničkog i biohemijskog kolmiranja drenova izradom detaljnih 3D numeričkih hidrodinamičkih modela, upotrebom postojećih, dostupnih i široko rasprostranjenih računarskih programa. Istraživanja su realizovana simulacijom ostvarenog režima podzemnih voda ...
    modeliranje podzemnih voda, hidrauličke karakteristike drenova, koeficijent propusnosti drenova, prifilterska zona drena, hidraulički otpori na drenovima, kolmiranje drenova, ulazne brzine podzemnih voda, MODFLOW, CLN Package
    ... deposits of southeastern Srem and the Danube terraces in eastern Serbia. Bulletin of the Natural History Museum, 8, 7–19. 154 Nenadić, D., Gaudényi, T., Bogićević, K., Tošović, R., 2016. Stratigraphic and lithologic characteristics of Pleistocene fluvial deposits in the Danube and Sava riparian area near ...
    ... mechanism, were represented in real geometric, structural, and hydraulic terms, whereas the laterals were simulated using a mathematical (numerical) boundary condition of the third type and the hydrodynamic condition "lateral". The hydrodynamic investigations resulted in a proposal of an optimal, ...
    ... C., Tonkin, M., (Eds.), MODFLOW and More 2015: Modeling a Complex World – IGWMC, Integrated Groundwater Modeling Center, Colorado, 350–353. 39 Davis, K.W., Putnam, L.D., LaBelle, A.L., 2014. Conceptual and numerical models of groundwater flow in the Ogallala and Arikaree Aquifers, Pine Ridge Indian ...

  • Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel (2016)
    General Earth and Planetary Sciences
    ... related to D,, d poles to foliation related to D», and e poles to spaced cleavage in Vranjska Banja area. See text for details. Symbol legend is given in Fig. 4. Relative scale and posi- tion in reference to Fig. 3 is given in the insef observed in this area (Fig. 8d). Kinematic indicators such ...
    ... The difference in orientation of strain axes during the deformation stages D, and D, resulted in the formation of folded drawn boudin trains in Ordovician meta-argillites (Fig. 11). The boudin trains were initially formed in the extensional domain of D, strain ellipsoid and were subse- quently ...
    ... Severin Ocean south of Kula Unit in north-western Bul- garia, the subduction of Vardar represents a more prob- able cause for the Jurassic thermal event in central SMM. General Early Jurassic hiatus in sedimentary sequences of Supragetic and Getic units in Serbia and Bulgaria may rep- resent a ...

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy

    Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana (2021)
    ... electron microscopy (SEM-EDS) and optical microscopy] and applying the obtained knowledge in the preservation of this type of cultural heritage in Serbia. Results and discussion Clay paste is a mixture of raw clays, consisted of kaolinite/halloysite, illite and smectite minerals followed ...
    ... Београду [ДР РГФ] Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy | Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana | 8th Mineral Sciences in the Carpathians Conference, Acta ...
    ... Miskolc, Hungary CULTURAL HERITAGE AND PROTECTION OF HAND-WHEELED POTTERY MANUFACTURE IN WESTERN SERBIA: CHARACTERISTICS OF ZLAKUSA POTTERY BASED ON SEM-EDS AND OPTICAL MICROSCOPY MILOŠEVIĆ, M.1, ZDRAVKOVIĆ, A.1, ĐORĐEVIĆ, B.2 & JELIĆ, I.3 1Faculty of Mining and Geology, University of Belgrade ...

  • Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One

    Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic (2024)
    In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...
    metro station, geotechnical modelling, displacements

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... unused, and 1.1 Mtoe is used), 1.7 Mtoe lies in hydropotential (0.8 Mtoe per year is unused, and 0.9 Mtoe per year is the used hydropotential), 0.2 Mtoe per year in geothermal energy, 0.2 Mtoe per year in geothermal energy, 0.1 Mtoe per year in wind energy, 0.2 Mtoe per year in solar energy and 0 ...
    ... generation in Serbia is noticeable. Therefore, it is clear that there is an opportunity for further improvements in using solar energy in Serbia, and consequently, for increasing the share of RES in the gross final consumption of energy. Existing: share of RES in gross final consumption in 20.1% ...
    ... Northern Serbia and 1.7 kWh / m? in Southern Serbia, and in the summer between 5.4 kWh / m? in Northern Serbia and 6.9 kWh / m? in Southern Serbia (University of Belgrade, 2004). It should be noted that the data were obtained based on «data measured at meteorological stations University of Belgrade ...

  • Maturation and isotopic changes of individual hydrocarbons in lignite lithotypes through diagenesis and early catagenesis

    Ivan Kojić, Achim Bechtel, Reinhard Sachsenhofer, Dragana Životić, Ksenija Stojanović (2019)
    ... Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs MATURATION AND ISOTOPIC СНАМСбЕ5 ОЕ INDIVIDUAL HYDROCARBONS IN LIGNITE LITHOTYPES THROUGH DIAGENESIS AND EARLY CATAGENESIS ...
    ... (Е) and phenanthrene compared (0 that of their methylated counterparts, which 15 documented by apparent дестеазе ог УМЕ/Е and PAI 1 ratios from Pyr400 to Pyr500. 5С values ог phenanthrene in pyrolysates are very close to those observed for their possible precursors simonellite and retene in lignite ...
    ... Маћицу changes ог biomarkers and аготанс hydrocarbons, as well as changes in their isotopic compositions were studied through diagenes1s and early catagenesis. Lignite samples (buminite reflectance, Rr = 0.30+0.03) from the Kostolac Вазш, Serbia were used as substrates. In order to investigate the influence ...

  • Old or New, We Repair, Adjust and Alter (Texts)

    Cvetana Krstev, Ranka Stanković (2020)
    U ovom radu predstavljamo kako se e-rečnici i kaskade transduktora konačnih stanja implementirani u alatu Unitex mogu koristiti za rešavanje tri problema transformacije teksta: ispravljanje tekstova nakon OCR-a, vraćanje dijakritičkih znakova i prebacivanje između različitih jezičkih varijanti.
    ispravka teksta, OCR greške, restauracija dijakritika , jezičke varijante, elektronski rečnik, transduktori konačnih stanja
    ... form delu (‘in some part’ and ‘in some work’). The frequency of use of forms dijelu and djelu in the Ijekavian corpus was not enough in favor of any of them (the right choice in both cases in the sample is dijelu). 5 Implementation and results All systems for text mending presented in sections 2–4 ...
    ... entry in SMD_DR Relative frequencies in SrpKor were calculated and assigned to each can- didate for correction in order to facilitate calculation and usage. For instance, relative frequency 1 was assigned to tokens that had in the corpus absolute frequency [1, 10].More about this can be read in (Krstev ...
    ... markers in SMD Dictionaries for variant transformation, as in the case of the dictionary for diacritic restoration SRP_DR were obtained from the standard SMD. Pronunciation variants in the standard SMD are marked but not connected (this is explained in more details in (Lazić and Škorić, 2019) in the ...

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... industry and the local community [2]. The "Valjevo" boron and lithium prospect is among receantly discovered deposits in Serbia, with borax mineralization identified in 2019. The deposit is in the exploration stage as a greenfield boron and lithium project in Western Serbia, operated by Euro Lithium ...
    ... situated in the "Valjevo-Mionica" Miocene age basin, with mineral paragenesis typically comprised of probertite, ulexite, sirlezite, massive borax and Li-bearing smectite and silinaite minerals, deposited in three main zones: Borate zone, Borax zone and Lithium-borate zone. The basin basement in the ...
    ... Mionica and surrounding settlements. Karst groundwater under artesian pressure and elevated temperatures (17–37 "C) are taped with wells drilled below the Miocene cover in the surrounding. settlements of Paštrić, Sanković and Petnica. 3. MATERIALS AND METHODS Considering the available data and the ...

  • Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia

    Maja Milošević, Bojan Kostić (2022)
    ... spacing value of 15.11 Å at 5.86 (2θ) and less frequent minerals such as quartz, carbonates and feldspars. This mineralogy was confirmed by XRD for oriented, saturated and heated samples. DTA curve, in addi- tion to the typical peaks related to montmorillonite (≈ 140 °C and 600 °C), also contains two smaller ...
    ... clay has a high content of montmoril- lonite and a smaller amount of quartz, carbonates, iron oxy/hydroxides and feldspars. Acknowledgements. Ministry of Education and Science, Republic of Serbia, on realization and financing of scientific research work in 2022, contract No. 451-03-68/2022-14/200126. ...
    ... smaller endo- thermic peaks at approximately 900 °C and 300 °C corresponding to carbonates and iron oxy/hydroxides, respectively. The clay from Svrljig (Serbia) was characterized by chemical, mineralogical and thermal analysis. All applied methods were in good agreement indicating that the studied clay ...