Претрага

Упит dcterms_subject_txt:groundwater source.0

4920 items

  • Reconstruction of the Tethys' waning in the Balkans: New insights from Upper Cretaceous igneous formations and zircon provenance data

    Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković (2024)
    geochronology, zircon, provenance
    ... of zircon grains has proven to be a powerful tool in provenance studies, providing information about the timing of the origin of lithologies in a source area, which has often been destroyed and recycled during preceding plate tectonic processes. Our research was conducted in two phases. In the ...

  • Impact of river bank filtration on alluvial groundwater quality: A case study of the Velika Morava River in central Serbia

    Branislav Petrović, Vladimir Živanović (2016)
    филтрација кроз обалске и седименте речног корита, алувијални седименти, прихра- њивање подземних вода, квалитет подземних вода, Велика Морава

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... ENVIRONMENTAL ACCEPTABILITY 1 2 3 4 5 6 7 8 9 10 GHG emission 0 0 0 0 0 0,169 0,51 0,513 0,486 0,486 Emission of pollutants 0 0 0 0 0 0,099 0,301 0,301 0,698 0,698 Indirect Env. Effect 0,02 0,02 0,34 0,58 0,592 0,533 0,4 0,16 0 0 Environmental energy security indicator for this combination of ...
    ... pollutant, but also its difference with the amount of non-emitted pollutant produced by substitution must be taken into account. 0 ,1 8 0 ,1 7 0 ,1 7 0 ,3 1 0 ,1 8 very low low medium high very high 9 REFERENCES 1. Radovanovic, M., Filipovic, S., Pavlovic, D., Energy security measurement ...
    ... Heating Plant 120 Fuel-oil Public and Commercial 2 Industry 30 District Heating Plant 1 Natural gas Public and Commercial 0 Industry 0 District Heating Plant 0 Fire wood Public and Commercial 200 Industry 90 District Heating Plant 60 3.3 Partial Indicator of Indirect Environmental ...

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... h – The TEL platform consists of tools and resources: learning, language and implementation resources. Among the tools some are available open source and commercial tools, some are in-house tools developed by the University of Belgrade Human Language Technology Group. Learning resources are both ...
    ... educators, students, and self-learners to use and reuse for teaching, learning, and research (Bissell, 2009). The materials are released under an open source license which permits their use, reuse and redistribution with limited or no restrictions. In this paper we describe an approach to making available ...
    ... conceived by MIT and Harvard University is aimed at supporting massive open online university courses. The platform has been developed as open-source software, akin to Moodle, and is available to other HEI under 3 http://www.adobe.com/rs/produc ...

  • 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
    ... Relative optical length, m(0), is determined by the solar zenith angle and elevation above sea level. For zenith angles less than 80%, it can be calculated using the following equation (ESRI, 2019): m(0) = EXP(-0.000118 * Elev - 1.038*10% * ElevŽ)/cos(0) (4) where: • 0 = The solar zenith angle; ...
    ... sector with a centroid at zenith angle and azimuth angle is calculated using the following equation (ESRI, 2019): Angino,. = acos( Cos(0) * Cos(Gx) + Sin(0) * Sin(G,) * Cos(qo-Ga)) (5) where: G= The surface zenith angle; Note that for zenith angles greater than 80%, refraction is important; ...
    ... - Pai) (7) For the uniform sky diffuse model, Weighto,y, is calculated as follows (ESRI, 2019): Weighto„ = (cos0-- cos0;) / Divai where: 0; and 0+ = The bounding zenith angles of the sky sector. Divax = The number of azimuthal divisions in the sky map. For the standard overcast sky model ...

  • Развој геолошког терминолошког речника ГеолИССТерм

    Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić (2011)
    ... la PetrološkaKlasifikacija StratigrafskiLeksikon Metapodatak 1 0..* +ima 0..1 +ekvivalent 0..* -BiblioRefID -Autor -Naslov -Izdavac -GodinaIzdanja -TipReference -Edicija -Tom_Knjiga -Serija Bibliografija 0..1 0..* 0..1 1..* -NadInstancaID +Naziv -RedniBroj +Sinonimi +Parametri ...
    ... vocabulary entry is registered through the Metapodatak (Metadata) class. +OBJECTID ESRI Classes::Object RelacijeTermina +odKoncepta 0..1 0..* +kaKonceptu0..1 0..* GeološkiRečnik -InstancaID -MetazapisID -RepozitorijumID -Naziv -Opis Rečnik -NadInstancaID -RedniBroj -Sinonimi -TerminIzvanUpotr ...
    ... contain the appro- priate definition of the concept with a mandatory bibliographic reference citing the source from where the definition was taken. The information on the metadata, including source of data, pro- cessing method and comments is provided for every individual term entry. A correction of ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    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, ...
    ... The outlined approach may be used within the System of 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 ...

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... injury, workers age and qualifications, time dimension, organizational structure of mine, shifts and working day in which the violation occurred, the source and cause of the injuries, etc. Figure 1 depicts two OLAP cubes. Each cell of the cubes holds a number of injuries. In the first cube injuries ...
    ... Figure 1 OLAP cubes Figure 2 presents a part of the BI development environment. The left side presents measures and dimensions of the cube. "Data Source View" is used for creating links between measures and dimensions, whereas the right hand side features the project tree. The central table with numerical ...
    ... International Symposium on Mine Planning and Equipment Selection, Vol. 1 (Cardu M, Ed), Torino, Italy, 20-22. September 2006, pp. 436-441. ISBN 88 901342 4 0 [11] Stanković, R., Obradović, I., Kitanović, O., Kolonja, Lj.: Towards a Mining Equipment Ontology. In Proceedings of the 12th International Conference ...

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... g. a collection of properties with assigned values (e.g. attributes) that characterize some geological occurrence. Metadata keep track of data source, links to the bibliography, the person, organization, and project responsible for original data acquisition. Some relationships between records ...
    ... Serbian 5. GeolISS Query Expansion Having in mind the diversity and amount of data archived in GeolISS, efficient exploration of such a valuable source of geologic data needs special attention. Data retrieval from the GeolISS geodatabase is provided on several levels: searching on the level of ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... domain of mining. It is organized as a taxonomy of terms. Each term is followed by a definition, its synonyms, and bibliographical reference to their source, as well as equivalent terms in other languages. GeolISSTerm 5 is a thesaurus of geological terms with entries in Serbian and English, developed ...
    ... pages which manage profiles, bibliography and a login page. Each term comes with the name, definition, synonyms, abbreviations and a bibliographic source. Each term, except the top term in dictionary tree, has a hyperonym term, while each term can have an arbitrary number of hyponym terms. Term name ...

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography

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

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... / SuffixTo indicates suffixes (suf- fix variations) or substrings (affix variations) that a source/target lexical entry must contain; 4. MarkerFrom / MarkerTo is a required dictionary marker that a source/target lexical entry must have; 5. Group relates rules that are used in pairs. The group attribute ...
    ... l structures and numerous in- flected forms for Serbian. MULTEX-East lexicons (Krstev et al., 2004) represent another important NLP lexical re- source for Serbian, besides Serbian WordNet. However, both of them are not comparable with SMD either in size or in content, which is why SMD was chosen ...
    ... developer to enforce this rule. The second approach is used for implicit inverse relations: a lemma that has a derivation marker is used to generate the source lemma, origin of the derivation, which is then sought in dictionaries. The generation is sometimes quite simple, as is the case with verbal nouns ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... Smartlab X-ray Diffractometer (Rigaku Co., Tokyo, Japan) in 06–0 geometry (the sample in horizontal position) in parafocusing Bragg-Brentano geometry using a D/teX Ultra 250 strip detector in 1D standard mode with CuKau,>» radiation source (U = 40 kV and I= 30 mA). The XRPD patterns were collected ...
    ... and have further implications for studies on ion incorporation into FeAsS structure and its environmental stability and oxidation mechanisms as a source of anthropogenic As release into the environment. Keywords: FeAsS; crystal structure; oxidation; XRPD; TEM 1. Introduction Arsenopyrite (FeAsS) ...
    ... oxide layer formed upon exposure to air. Adriatic sea 100 km iii ==t-Macedorian Massi E v.arzone Pelagonian Zone BIŠaBP Rnodope complex [0 carpatho-Balkanides [7\ | Moesian Platform B l a c k s e a E===== 50 km Ć . [E osstal units of Adria [ Pannonian Basin josnian Flysch ...

  • Wordnet Development Using a Multifunctional Tool

    Ivan Obradović, Ranka Stanković (2007)
    In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...
    Wordnet development, language resource integration, HLT tools
    ... possible that he/she might neglect some of them. As the simplest and most straightforward aid the bilingual wordlist can be used. Words from the source (English) synset can be matched with words in the target language as probable candidates. The multilingual dictionary Prolex could be used in ...
    ... similar manner. Figure 8. Aligned texts with highlighted words Another, more complex option is to use aligned texts. If PWN is used for the source synset, then the language of one of the parallel texts must be English. Namely, WS4LR allows the user to search aligned texts using words from ...
    ... synsets from that domain by means of an Xpath expression and then using the wordnet module option “Match by ID” which matches synsets in the source and target wordnet via the ILI. This options indicates which PWN synsets have a match in the target language, regardless of the fact whether ...

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... application framework which uses the model–view–controller pattern. Clients are open source software (OCWB/CQPweb and NoSketch Engine / Bonito have been implemented in PHP and Python respectively) and their source code has been adapted to: – send requests to Vebran Web Services, – receive a response ...
    ... The OCWB Development Team, 2019) and web-based graphical user interface CQPweb (Hardie, 2012); – NoSketch Engine (Rychlý, 2007). Unitex7 is open source software for an analysis of textual data, corpus processor with user-friendly interface, language resources distributed out-of- the-box and set of ...

  • Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra

    Vladica Cvetković, Dejan Prelević, Ana Mladenović (2024)
    Neotethys, ocean closure, subduction
    ... abundance of acid magmatic rocks [4]|. The mafic rocks of Mt. Klepa (North Macedonia) also show a within-plate signature, involving a mantle source that likely contained amphibole, IIerru KoHrpec Ha I econmoaure Ha PenyOxnuka CeBepHa MakcjuoHuja Fifth Congress of Geologists of thce Republic ...

  • Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca

    Dragoljub Bajić, Bojan Hajdin, Dušan Polomčić, Vesna Ristić Vakanjac (2022)
    Na izvorištu „Vić bare“ formiranom u aluvijonu Save za vodosnabdevanje Obrenovca u poslednje dve decenije izvedeno je više detaljnih hidrogeoloških istraživanja u cilju utvrđivanja rezervi podzemnih voda i izdvajanja zona sanintarne zaštite. Monitoring podzemnih voda u celoj zoni izvorišta, za potrebe izrade hidrodinamičkog modela, omogućio je i hidrauličku analizu odnosa površinskih voda reke Save i podzemnih voda na izvorištu sa kojeg se trenutno zahvata do 310 l/s vode. U radu su prikazani rezultati korelacione analize, odnosno ispitivanja na ...
    aluvijon, korelaciona analiza, koeficijent determinacije, režim podzemnih voda

  • Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas

    Predrag Pajić, Uroš Urošević, Dušan Polomčić, Milan Dimkić (2016)
    This paper describes updated calculation methodology of Danube backwater impact, occurred as a consequence of “Đerdap I” hydropower plant operation, onto the meliorated riverside areas. This methodology is based on hydrodynamic analysis of groundwater regime (size, duration, level and inflow changes) and quantification of melioration areas impairment which is caused by “Đerdap I” hydropower plant operation. By comparing the groundwater regime elements, obtained by variant hydrodynamic calculation in mathematical models for natural – not backed up and actual – ...
    HPP ''Djerdap 1'', backwater influence, groundwater regime, hydrodynamic analysis, melioration area, drainage system, additional energy engagement