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271 items

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... considered for the analysis. Boban Pavlović, Dejan Ivezić. Marija Živković 432 Table 2.Specifications of HSs [22], [23] SMEDEREVAC 7 NEW LINE MBS MBS PELLET 6 - 10 KW Capacity 6.5 kW Capacity 8.5 kW Dimensions (HxWxL) 740x720x570 mm Dimensions (HxWxL) 980x560x490 mm Weight 71 ...
    ... the EPA stationary combustion emission factors inventory [23] (expressed by GWP100 per kg). Table 3. LCA of firewood-based HS - SMEDEREVAC 7 NEW LINE MBS [21], [23], [24] LC phase Contribution Amount [kg] GWP100 per kg [kg CO2-Eq/kg] GWP100 total [kgCO2-eq] Production Steel production ...

  • Хазард од клизишта у Србији у 21. веку

    Biljana Abolmasov (2019)
    клизишта, хазард од клизишта, промене климе
    ... indices changes; Second national communication of the Republic of S the United Nations framework convention on climate change. MERZ, B Serbia (on-line) available at http://haos.ff.bg.ac.rs/climatedb-srb/. (�� 5. 9. 2018). [30] Leroueil S., Locat J., Vaunat J., Picarelli L., Lee H., Faure R. (1996) ...
    ... n anc indices changes; Second national communication of the Republic of the United Nations framework convention on climate change. MERZ, Serbia (on-line) available at http://haos.ff.bg.ac.rs/climatedb-: 5. 9. 2018). [30] Leroueil S., Locat J., Vaunat J., Picarelli L., Lee H., Faure R. characterization ...

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... Serbia. E-mail: marija.ilicQ)rgf.bg.ac.rs Paper received: 5 November, 2014 Paper revised: 13 May, 2015 Paper accepted: 20 May, 2015 ivailable on line at issociation of the Chemical Engineers of Serbia ACPE www.ache.org.rs/CICEQ Chem. Ind. Chem. Eng. Q. 22 (1) 27–32 (2016) CI&CEQ THE INFLUENCE ...
    ... water (technical information sheet of Cognis, Monheim, Germany). The alcohol ethoxyl- ate CigEioo was synthesized under argon using a high vacuum line by Frank ef a/ [28] in the laboratory of JCNS-1 at Forschungszentrum, Julich. Water was deionized and twice distilled. Phase diagram determination ...

  • Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu

    Lazar Pavlović (2024)
    Cilj ovog rada je analiza stabilnosti dijafragme, predviđene kao mere za obezbeđenje dubokog iskopa od zarušavanja okolnog tla koji se izvodi na mestu buduće metro stanice “Francuska” koja je planirana u okviru prve faze, prve linije metroa u Beogradu – sekcije „Centar“. U okviru numeričke analize je izvršena analiza stabilnosti konzolne dijafragme kao i dijafragme sa ankerom – slobodno oslonjene dijafragme, kako bi se moglo napraviti poređenje dobijenih vrednosti koje se odnose na dubinu fundiranja koja je potrebna da ...
    istraživanja, metro stanica, iskop, dijafragma
    ... METROA X=4963941.987 Y=7458282.418 26-27.04.2021. 1:100 ušlo: Oriled Dy: :0.0. Structure:METRO LINE 1 - FIRST FASE X=4963941.987 Y=7458282.418 26-27.04.2021. Bušio: Driled By: GEOMAG d.o.o. Structure:METRO LINE 1 - FIRST FASE z.|ss _s|_3 Tehnička dokumentacija: GEOLOŠKO - GEOTEHNIČKA DOKUMENTACIJA EŽŠ ...
    ... Structure:METRO LINE 1 - FIRST FASE 'KOORDINATE: COORDINATES: Z=89.668 X=4963973.148 Y=7458280.040 28.04.2021. 1 : 100 DATUM IZVOĐENJA: DATE OF EXECUTION: |_ RAZMERA: SCALE: Bušio: Drilled By: GEOMAG d.o.o. Objekat: PRVA FAZA PRVE LINIJE BEOGRADSKOG METROA Structure:METRO LINE 1 - FIRST FASE ...
    ... 660 X=4963996.732 Y=7458325.947 25-26.04.2021. 1: 100 ušlo: Oried y- -00. Structure:METRO LINE 1 - FIRST FASE X=4963996.732 Y=7458325.947 25-26.04.2021. 1: 100 Bušio: Driled By: GEOMAG d.o.o. Structure:METRO LINE 1 - FIRST FASE s |ss Tehnička dokumentacija: GEOLOŠKO - GEOTEHNIČKA DOKUMENTACIJA Faza ...

  • Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević (2017)
    ... separated by the fault zone known as the Rakovica fault. °ese geological structures are noted for their large vertical movements along that fault line, at some places more than 200 meters. For example, in the KGK 14 well, just below the Pontian sand, the Pannonian marl on the absolute height of less ...

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... Miocene sediments. The Torlak horst and the Beli Potok trough struc- tures are separated by the Rakovica normal fault. In some places along the fault line, several geological units are vertically displaced more than a hundred metres. For example, in borehole KGK-14, the Upper Miocene Pannonian marls ...
    ... measurements, the fault kinematics and timing in the wider area were taken from the aforementioned references. Recognized structures were measured as line seg- ments of given length (~ 2km) and plotted on a rose diagram (Fig. 17b). The statistical interpretation of the linear features (ori- entation ...
    ... through the Beli Potok trough (modified and upgraded after STEVANOVIĆ, 1951). Numbers indicate the studi- ed outcrops that are located near the profile line. For the faults key, see Fig. 1. Note: Scale is adapted to better illustrate the geological relationships. Pontian (sensu STEVANOVIĆ) (Figs. 17, 20) ...

  • 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
    ... one is the correct one. As for the 5 th and 6 th MWUs, otvorena vrata ‘open door (a meeting of parents with teachers)’ and autobuska linija ‘bus line’ only one solution is offered for each of them, and it is correct in both cases. Three possible solutions are offered for the 7 th MWU, ledeno doba ...
    ... consisted of MWUs compiled from several sources, all of them nouns. In both cases the results produced by the system were validated manually. In line with the possibility of a “partly” correct solution that we have recognized in subsections IV-B and IV-C, the evaluation results were classified as ...
    ... or more of its components from dictionaries of simple words in Serbian (e.g. in Gornji Tavankut, Tavankut is not used independently), which is in line with failure causes in the experiment with the first data set. These lemmas can still be produced within LeXimir following the manual procedure presented ...

  • 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
    ... observed in outcrops. Locations of photos are displayed in Fig. 3. a — Older (probably pre-Alpine) fold hinges (red line) locally preserved in pervasive east-dipping foliation (green line) in Supragetic unit. Observation point V5. b — C–C’ structure within Supragetic low-grade green-schists indicating ...
    ... muscovite and biotite in Serbo-Macedonian Massif gneisses in cross-polarized lights. Sampling site V3. b — Muscovite forming isoclinal fold hinge (red line) incorporated in the younger foliation (green lines). Sampling site V3. Cross-polarized lights. c–e — Top-NE normal sense of shear in the contact zone ...

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... Geographical information systems (GIS) within the course Information technologies. For each concept separate Serbian and English entries were created. In line with the standard requirements for glossaries, besides the basic Serbian and English terms, each entry contained a short definition of the term ...
    ... format of Moodle glossaries does not offer all features needed for a proper lexical resource. Hence the export from RudOnto had to be realized in line with what was available in Moodle [12]. The export of the basic term used for a concept and its definition from RudOnto to Moodle is pretty stra ...

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ...  291–306.  Fisher, R.A., 1953. Dispersion on a sphere. Proceedings of the Royal Society London, 217, 295‐305.  Kirschvink, J.L., 1980. The least‐squares line and plane and the analysis of paleomagnetic data. Geophy‐ sical Journal of the Royal Astronomical Society, 62, 699–718.  Lowrie, W., 1990. Identif ...

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... feature of WS4LR is its flexibility expressed both by the possibility of setting environment parameters and by the possibility of invoking command-line routines and using external Perl, Awk, and XSLT scripts. pkg WS4LR moduls WSLR moduls + CONVERSION + DICTIONARY MANAGMENT + WORDNET DEVELOPMENT ...
    ... or regular expression is ready, NooJ offers two possibilities for their application to a text: the dynamic library NoojEngine.dll and a command-line program: noojapply.exe. In its Community edition, NooJ’s functions are available via a .NET dynamic library, noojengine.dll, constituted by a set ...

  • Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support

    Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović (2017)

  • Integracija heterogenih tekstualnih resursa

    Ranka Stanković, Ivan Obradović (2007)
    U radu je opisan pristup integraciji heterogenih tekstualnih resursa za srpski jezik uz pomoć jednog kompleksnog softverskog alata, razvijenog specijalno za ove potrebe. Opisani su struktura i osnovne komponente razvijenog sistema. Iznete su i mogućnosti unapređivanja resursa međusobnom razmenom informacija, koje pruža razvijeno integrisano okruženje. Konačno, opisana je i mogućnost primene integrisanih heterogenih resursa za proširenje upita, kao i pretraživanje tekstova uopšte, a naznačeni su i neki od pravaca daljeg razvoja.
    ... koje je, osim u štampanom obliku, na raspolaganju i u vidu on-line helpa, koji predstavlja sastavni deo softvera. Efikasnom radu doprinose i mogućnost podešavanja parametara radnog okruženja, kao i mogućnost pozivanja command-line rutina i korišćenja eksternih Perl, Awk, XSLT skriptova iz samog ...

  • Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)

    Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)
    Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...
    Sphene, Phase transition, Raman spectroscopy, X-ray diffraction, SEM, IR

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • 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
    ... e. averaged over all material line orientations [0, 2π ]. Interpretation of the stretch tensor In 2-D, the left-stretch tensor has the form: V = [ Vxx Vxy Vxy Vyy ] . (30) While the tensor components of V denote extensional (diagonal components) and shearing (off-diagonal components) deformation ...
    ... rotation, i.e. averaged over all material line orientations [0, 277]. Interpretation of the stretch tensor In 2-D, the left-stretch tensor has the form: v=[ i | (30) xy Vyy While the tensor components of V denote extensional (diagonal components) and shearing (off-diagonal components) deformation, the ...
    ... extension in y direction ; followed by an orthogonal rotation Q (Srinivasa 2012). Here, the change between initial line vectors dX (in this case the side vectors of a square) to final initial line vectors dx (the deformed quadrilaterals) is determined by: dx = FdX. First row, incremental deformation, second ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... more gradual. Also, notably less structures accommodate shortening south of the indenter, while north of the indenter new structures (i.e., splaying off of the main strike-slip zone; Fig. 5) form that do not exist in brittle-only models. Comparing M7 with M10 shows that main the dextral shear zone evolves ...
    ... Sokoutis, D., Willingshofer, E., Picken, S.J., 2019. New analogue materials for nonlinear lithosphere rheology, with an application to slab break-off. Tectonophysics 756, 73–96. Broerse, T., Krstekanić, N., Kasbergen, C., Willingshofer, E., 2021. Mapping and classifying large deformation from digital ...
    ... corner of the rectangular shaped indenter (Fig. 2a–c). The mobile plastic plate has a cut in the middle in the north-south direction (dashed green line in Fig. 2) to enable the sliding and rotation of the mobile plate along a stationary pin (Fig. 2). This construction allows for a combined transl ...

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... result, aligned concordances with all the keywords in both languages are produced. At the beginning of each concordance line is the identification of the document from which the line originates – the identification is the hyperlink to a metadata card for both languages. The Metadata card has hyperlinks ...