Претрага
2282 items
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Funkcionisanje i uticaj epikarsta na režim, bilans i kvalitet podzemnih voda istočnog dela karstnog sistema Suve planine
Branislav Z. Petrović (2020)Epikarst je deo karstne izdani koji se nalazi u okviru nadizdanske zone i predstavlja kompleksnu tačku dodira i mešanja nekonsolidovanog materijala sa površine terena, ostataka karbonatnih stena izmenjenih korozivnim delovanjem vode, živog sveta i njihovih ostataka, koja je delimično zasićena podzemnom vodom. Kompletan sud o stepenu razvoja i prisustva epikarsta na nekom krečnjačkom terenu moguće je doneti uz multidisciplinarna i obavezna detaljna hidrogeološka istraživanja. Poligon za sprovedena istraživanja je bio karstni masiv Suve planine, koja u geološkom i geografskom smislu ...epikarst, karstni sistem, podzemne vode, procesi samoprečišćavanja, hidrohemijski i mikrobiološki procesi u podzemnoj vodiBranislav Z. Petrović. Funkcionisanje i uticaj epikarsta na režim, bilans i kvalitet podzemnih voda istočnog dela karstnog sistema Suve planine, Beograd : [B. Petrović], 2020
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A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenikaGordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević. "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, Elsevier BV (2021). https://doi.org/10.1016/j.marpetgeo.2021.105383
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Improvement of Queries using a Rule Based Procedure for Inflection of Compounds and Phrases
Stanković Ranka (2008)Stanković Ranka. "Improvement of Queries using a Rule Based Procedure for Inflection of Compounds and Phrases" in POLIBITS, Research journal on Computer science and computer engineering with applications, Special section: Natural Langugage Processing, Journal of Research and Developement in Computer Science and Engeneering, ed. Grigori Sidorov no. 37, Mexico City, Mexico:Center for Technological Design and Development in Computer Science (CIDETEC) of the National Polytechnic Institute (IPN) (2008): 14-20
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Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...... indicating water transport as a taphonomic agent. The surface bears patches of black manganese coating and yellowish iron-oxide staining. In occlusal view, the crown is vestibulo-lingually wide and mesio-distally short, showing a rectangular outline. The occlusal surface is semi-smooth and polished showing ...
... brown crown with very pronounced rounding and polishing presumably by water transport. Large parts of the mesial, distal, and vestibular enamel are missing. The preserved occlusal sur- face shows marked wear, the presence of an inte- rior valley, a single crochet, and the postfossetta. A partially preserved ...
... HMP-135 (Figure 4K-O) is a left M1 or M2 consisting of a well-preserved and complete crown without roots, showing pro- nounced wear and grey-coloured, iron-oxide stained enamel. The crown shows rounded and polished surfaces (indicating water transport). A trapezoidal shape can be observed in occlusal view ...Predrag Radović, Miloš Radonjić, Emmanuel Billia. "Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia" in Palaeontologia Electronica, Coquina Press (2020). https://doi.org/10.26879/985
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Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова
Milena Rosić (2014-12-05)У оквиру ове докторске тезе, испитиване су оптималне методе за добијањенанопраха – калцијум манганског оксида допираног јонима гадолинијума. Циљистраживања је испитивање одговарајућих прекурсора који су подесни да седобију чисти нано прахови манганита са перовскитском структуром, као имонофазни чврсти раствори са перовскитском структуром. Као подесан методкоришћена је модификована глицин нитратна метода, а од прекурсора нитрати иацетати одговарајућих метала. Модификација глицин нитратне методе се односина делимичну замену нитрата ацетатима, чиме је ублажена бурност реакције.Испитан је различити однос прекурсора, који дају наночестичне ...... A.K., (eds.) (2004): The Chemistry of Nanomaterial Synthesis, Properties and Applications, 2 Vol, Wiley-VCH, Weinheim, Germany. Rao C.N.R., Thomas P.J., Kulkarni G.U., (2007): Nanocrystals Synthesis, Properties and Applications, Springer Series in Materials Science, 95, 1–25. Докторска ...
... 257-260. Hagenmuller, P. (ed.) (1992): Preparative Methods in Solid State Chemistry, Academic Press, New York, 7. Haertling, G. H. (1999): Ferroelectric ceramics: History and Technology, Journal of the American Ceramic Society, Volume 82, Issue (4), pp. 797-818. Howard, C. J., Stokes, H. T. (1998): ...
... Oxide Chemistry and Synthesis: From Solution to Solid State, Wiley, New York Jona, F., Shirane, G. (1993): Ferroelectric crystal, Dover Publications, INC., New York Jortner J., Rao C.N.R. (2002): Nanostructured advanced materials. Per- spectives and directions, Pure and Applied Chemistry, 74 ...Milena Rosić. "Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-05)
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance
Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography... yielded determinable and moderately preserved radiolarian assemblages. Results Lithology and microfacies Apart from the biostratigraphic age, microfacies analysis of both radiolarites and limestones provides information about their depositional setting (e.g., relative water depth, transport ...
... suppor- ted by Ministry of Education, Science and Technological Development of the Republic of Serbia, Project ON-176015 (NDJ, MS, DJ). The cooperation Leoben-Belgrade was sup- ported by the CEEPUS Network CIII-RO-0038 Earth-Science Studies in Central and South-Eastern Europe. The research work ...
... in continental-margin settings and clearly indicate deposition on the ocean floor (Krische et al. 2014; Gawlick & Missoni 2015). The absence ofribbon radio- larites on the continental margin is due to the fact that supply from shallow-water carbonate ramps and platforms led to the accumulation ...Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović. "Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance" in Geologica Carpathica (2017)
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Some models for determination of parameters of the soil oscillation law during blasting operations
... oscillation velocities vi1, vi2, and vi3, as well as the difference between the recorded and calculated soil oscillation velocities for models 1, 2, and 3, are presented in Table 2. Table 2. Survey of recorded and calculated soil oscillation velocities for models 1, 2, and 3. No. R vr (cm/s) vi1 (cm/s) ...
... oscillation velocities 0;1, ¥j2, and v;3, as well as the difference between the recorded and calculated soil oscillation velocities for models 1, 2, and 3, are presented in Table 2. Table 2. Survey of recorded and calculated soil oscillation velocities for models 1, 2, and 3. No. R vy (cm/s) Viz (cm/s) ...
... velocity of the soil depending on distance, the explosive amount, and conditions of blasting and geologic characteristics of the soil; all of this being determined on the basis of test blasting for the specific work environment. In the Sadovskii equation two parameters, K and n appear and they are conditioned ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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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. ...... decomp, Variation and Translation – vartrans and Linguistic Metadata – lime. The most commonly used module is ontolex that describes lexical entry (morphological, semantic and ontological description). 3 Transition to lexical database 3.1 Motivation Automatisation of the management of Serbian Morphological ...
... recording linguistic in- formation in computer lexicons and is based on the Standard ISO 24613: 2008 (Language Resource Management - Lexical Markup Framework - LMF). LMF is designed for lexicons specially designed for Natural Language Pro- cessing and Machine-Readable Dictionaries. LMF specification is ...
... Declerck, Jorge Gracia and Bettina Klimek. Paris, France: European Language Resources Association (ELRA), 2018 Tomašević, Aleksandra, Ranka Stanković, Miloš Utvić, Ivan Obradović and Božo Kolonja. “Managing mining project documentation using human lan- guage technology”. The Electronic Library ...Biljana Lazić, Mihailo Škorić. "From DELA Based Dictionary to Leximirka Lexical Database" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.4
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Evolution of coal ash solidification properties with disposal site depth and age, Gacko Thermal power plant case
Knežević Dinko, Nišić Dragana, Beatović Sreten, Tomašević Aleksandra. "Evolution of coal ash solidification properties with disposal site depth and age, Gacko Thermal power plant case" in Technics, Mining, Geology and Metallurgy 72 no. 2, Beograd: Savez inženjera i tehničara Srbije (2017): 195-203. https://doi.org/DOI:10.5937/tehnika1702195K
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Comparative Risk assessment of CCW Disposal in the Old and New Landfill of the Coal-Fired Power Plant Kostolac Based on the Hydrological Scenario
Nišić Dragana, Knežević Dinko, Sijerković Nevena, Pantelić Uroš, Jovanović Mirjana. "Comparative Risk assessment of CCW Disposal in the Old and New Landfill of the Coal-Fired Power Plant Kostolac Based on the Hydrological Scenario" in Technics, Mining, Geology and Metallurgy special, Beograd, Srbija:Savez inženjera i tehničara Srbije (2016): 25-32. https://doi.org/10.5937/tehnika1605677N
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Hidrogeotermalni resursi teritorije grada Beograda
Ana Vranješ (2012-12-12)Republika Srbija je izrazito bogata hidrogeotermalnim resursima. Podzemne vode satemperaturama preko 20oC (pa do 96oC, Vranjska Banja) relativno su dobro iskorišćene.Nasuprot njima, podzemne vode sa temperaturama do 20oC do sada uglavnom nisu bilepredmet istraživanja sa bilo kog aspekta izuzev za potrebe vodosnabdevanja. Razvojemsistema toplotnih pumpi, mogućnosti višenamenskog korišćenja ovih voda značajno suuvećane.Teritorija Beograda odlikuje se značajnim resursima podzemnih voda, pre svega u okvirualuvijalnih peskovito-šljunkovitih naslaga i neogenih tortonsko-sarmatskih krečnjačkihnaslaga. Temperatura ovih voda ne prelazi 25oC. Njihovim zahvatanjem preko istražnoeksploatacionihbunara ...geotermalna energija, hidrogeotermalni resursi, hidrogeotermalni sistemi, hidrogeotermalnapotencijalnost, energetska valorizacija, hidrogeološka rejonizacija, grad Beograd...500 Internal Server Error Internal Server Error
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...Ana Vranješ. "Hidrogeotermalni resursi teritorije grada Beograda" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-12)
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Proširivanje upita zasnovano na leksičkim resursima
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, ...... Resources and Basic Tools“, Proc. of the International Workshop on Balkan Language Resources and Tools, Thessaloniki, Greece, S. Piperidis, V. Karakaletsis (eds.), pp. 97-104. [2] Tufiş, D. (ed.). (2004) Special Issue on BalkaNet Project, Romanian Journal on Information Science and Technology ...
... presents how resources and tools developed within the 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 ...
... scientific, technical and business information. Efficient exploration of such a valuable source, in view of the diversity and amount of archived data, including textual, is a complex task. The tools we describe are WS4LR, a software tool that has already been developed and used for solving different ...Ranka Stanković, Ivan Obradović, Cvetana Krstev. "Proširivanje upita zasnovano na leksičkim resursima" in SNTPI 09 - Naučno-stručni skup Sistem naučnih, tehnoloških i poslovnih informacija, Beograd 19. i 20. jun 2009, Beograd : Fakultet informacionih tehnologija (2009)
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Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... Triassic hemipe- lagic sequences and advocate the term Grivska Group, which comprises different Middle and Late Triassic hemipelagic bedded cherty limestones with layers of calciturbidites with shallow-water debris. Later, GAWLICK et al. (2016, 2017) and SUDAR & GAWLICK (2018) revised the ...
... et al., 2017). Methods Samples of cherts 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 ...
... 1984), Japan (SUGIYAMA, 1997) and Eastern Russia (BRAaciN, 2000). Acknowledgments The authors gratefully acknowledge Ugur Kagan Tekin and Hazim Hrvatović for their constructive comments on the manuscript. The study was supported by Ministry of Education, Science and Technological Development ofthe ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
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Tectonic development of the Vardar ocean and its margins: evidence from the Republic of Macedonia and Greek Macedonia
Robertson H.F. Alastair, Trivić Branislav, Đerić Nevenka, Bucur I. Ioan. "Tectonic development of the Vardar ocean and its margins: evidence from the Republic of Macedonia and Greek Macedonia" in Tectonophysics 595-596, Amsterdam, Netherlands:Elsevier Science BV, PO Box 211, 1000 AE (2013): 25-54. https://doi.org/10.1016/j.tecto.2012.07.022
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Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event
Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco. "Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event" in Historical Biology (2023). https://doi.org/10.1080/08912963.2023.2190757
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Identification and characterization of single crystal Bi2Te3-xSex alloy
Požega Emina, Ivanov Svetlana, Stević Zoran, Karanović Ljiljana, Tomanec Rudolf, Gomidželović Lidija, Kostov Ana (2015)Požega Emina, Ivanov Svetlana, Stević Zoran, Karanović Ljiljana, Tomanec Rudolf, Gomidželović Lidija, Kostov Ana. "Identification and characterization of single crystal Bi2Te3-xSex alloy" in Transactions of Nonferrous Metals Society of China 10 (25), ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Elsevier Science BV, PO Box 211, 10:Elsevier BV (2015): 3279-3285. https://doi.org/10.1016/S1003-6326(15)63964-4
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Using English Baits to Catch Serbian Multi-Word Terminology
In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection... Dictionary of Library and Infor- mation Science (English/Serbian pairs); • The rule-based system for the extraction and lemmati- zation of potential terminological nominal phrases; • Bilingual Serbian/English list of inflected word forms and MWE pairs derived from bilingual dictionaries and morphological ...
... supported by Serbian Ministry of Education and Science under the grants #III 47003 and 178006. 7. Bibliographical References Ananiadou, S., McNaught, J., and Thompson, P. (2012). The English Language in the Digital Age. META-NET White Paper Series. Georg Rehm and Hans Uszkoreit (Series Editors). Springer ...
... source language is English, a target language is Serbian, a domain is Library and Information Science for which a bilingual terminological dictionary exists. Our term extractor is based on e-dictionaries and shallow parsing, and for word alignment we use GIZA++. At the end of procedure we included a supervised ...Cvetana Krstev, Branislava Šandrih, Ranka Stanković. "Using English Baits to Catch Serbian Multi-Word Terminology" in Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release
The interaction of dodecylsulfate anions (DS−) with homoionic Ca-, Mg-, Ni-, Cu-, Cd-, Pb- and Fe-montmorillonites were investigated. Mg- and Cd-montmorillonite do not adsorb DS−, and an anion exchange at the edges of the clay mineral does not take place. Three different adsorption processes are identified on the other montmorillonites: i) Fe-montmorillonite is covered with amorphous iron hydroxide, and DS−-anions are bound at positively charged sites. ii) On Ca- and Pb-montmorillonite DS− is precipitated as Me(DS)2. iii) On Ni- ...M. Ilic, J. Gonzalez, A. Pohlmeier, H. D. Narres, M. J. Schwuger. "Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release" in Colloid Polymer Science, Springer Science and Business Media LLC (1996). https://doi.org/10.1007/BF00656626
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The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje
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 ...... energy, and energy in biomass and · fossil fuels, · captured · through photosynthesis. For the purpose of heating and electricity production, the application of solar panels (solar thermal panels for heating: water and PhotoVoltaic (PV) solar panels for electricity 325 production) and the ...
... „zonservative · best estimates and utilization of NREL's Annual Technology Baseline (ATB) tool and PVWatts Calculator (US EPA, 2019). Based on these resources, NREL recommends these factors (US EPA, 2019): r = 15% solar panel efficiency of PV module, and PR = 86% performance ratio. [1 ...
... environment” and it is a prototype project working on many different environmental issues. As described on the website, Copernicus Land Monitoring Service (CLMS) provides geographical information on the land cover to a broad range of users in the 12% International Conference on Energy and Climate ...Boban Pavlović, Milica Pešić-Georgiadis. "The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje" in 12th International Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece, Energy Policy and Development Centre (KEPA) of the National and Kapodistrian University of Athens (2019)