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Упит dcterms_subject_txt:Geothermal assessment

341 items

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... this field was developed at the University of Belgrade Faculty of Mining and Geology (FMG), for bucket wheel excavators, within a project aimed at assessment of excavator condition in the process of revitalization [8]. Taxonomies for other types of equipment were subsequently developed within the scope ...

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

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... water losses from the tunnel showed that they were relatively acceptable and that their distribution along the tunnel was not uniform. The closer assessment of the zone with the highest water losses pointed to the part of the tunnel where the concrete lining was unstable. Comprehensive tunnel investigations ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • 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)

  • Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)
    Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...
    višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager
    ... open-pit mine. Eviron- mental Geology, 52, pp. 663-672. 2007. [9] Mohamadibadi H S, Tichkowsky G, Kumar, A. De- velopment of a Multi-Criteria Assessment Model for Ranking of Renewable and Non-Renewable Trans- portation Fuel Vehicles, Energy, 34, pp. 112-125, 2009. DOI: 10.1016/j.energy.2008.09.004 ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije

    Jelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar (2023)
    Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...
    mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacija

  • Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji

    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
    U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...
    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija

  • 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 ugljjenika

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... dictionaries and those with rank under the specified threshold; 4.3. Linguistic evaluation of grammatical cor- rectness of remaining MWUs; 4.4. Assessment of domain relevance of each MWU by comparing its frequency in the domain text with its frequency in the Cor- pus of Contemporary Serbian (Utvić ...

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... fall padati 4 LWO V fall pasti 4 LWO V enrich obogatiti 3 MLO Table 2: Examples of en-sr term pairs in the final parallel list 3.1. Feasibility assessment of the approach In order to assess the feasibility of our approach, we have performed an experiment with the aligned PWN and SerWN synsets. Namely ...

  • 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
    ... these words and obtaining concordances. By getting the occurrences of the words within the context, the user will be able to make a better assessment whether they are really appropriate or not. In WS4LR this can be realized by creating a regular expression or FST graph from one or more words ...

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... , with significant introduction of contemporary technologies and wider applications of different energy sources (biomass, biogas, solar, wind, geothermal). Diversification of energy imports is mainly connected to import of natural gas. Establishing interconnections with the neighbours (Bulgaria, Croatia ...
    ... Ensuring Energy Security, Foreign Affairs, 85 (2006), 2, pp. 69-82 [6] Brown, M. A., et al., Forty Years of Energy Security Trends: A Comparative Assessment of 22 Industrial- ized Countries, Energy Research & Social Science, 4 (2014), Dec., pp. 64-77 [7] ***, A Quest for Energy Security in the 21st century ...

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... ground. The high accuracy of the geodetic measurements in the research (positional <0.01 m and elevation accuracy <0.02 m), provides an accurate assessment of the displacements of object points. The loca- tion and distribution of the object points as well as baseline stable points are shown in Fig ...

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... Zhu Y et al (2020) Land use/cover classification in an arid desert-oasis mosaic landscape of China using remote sensed imagery: Performance assessment of four machine learning algo- rithms. Glob Ecol Conserv 22. https://doi.org/10.1016/j.gecco. 2020.e00971 Ge YZ, Zhang ZJ, Cheng QM, Wu GP ...
    ... geologic map of Former Yugoslavia 1:100 000, explanatory booklet for sheet Kavadarci (in Macedonian) Huang C, Davis LS, Townshend JRG (2002) An assessment of support vector machines for land cover classification. Int J Remote Sens 23:725—740. https://doi.org/10.1080/01431 1601 10040323 Ivanovski ...

  • Методологија интегралне анализе сценарија енергетског развоја

    Александар Маџаревић (2019)
    енергетска безбедност, сценарио развоја, фази логика, сигурност снабдевања, доступност, расположивост, природни гас
    ... the assessment of the energy development scenarios, which resulted from the partial review of the interaction of energy development with the economic, ecological, social and institutional aspect of development. By applying the methodology to the case study of the energy safety assessment of the ...
    ... energy development and their critical analysis in the context of general socio-economic development. The subject of the dissertation is to find an assessment of the energy security of the energy development scenarios. Energy security is a synthesis of the geopolitical and energy aspects of the availability ...
    ... μP3 (n)) (ii) Функције припадности могу да формирају међусобом C = n3 комбинација. Свака комбинација представља практично једну могућу оцену (assessment) Mi (5.27). Mc = [μP1(j=1, …, n), μP1(j=1, …, n), μP1(j=1, …, n)], за свако c = 1 до C (5.29) (iii) Ако се у обзир узму само вредности ...

  • Mikroorganizmi - biohidrogeološki indikatori odabranih pojava mineralnih voda Srbije

    Vladimir Šaraba (2021)
    Sa namerom definisanja hidrogeološke uloge i značaja mikrobiološkog diverziteta odabranih pojava mineralnih voda Srbije, primenom sistema biodetektora, dokazano je prisustvo gvožđevitih, sulfato-redukujućih, sluz-produkujućih, heterotrofnih aerobnih i denitrifikacionih bakterija, na osnovu čega je proračunat rizik od razvoja procesa biokorozije i biohemijske inkrustacije, te zdravstveni rizik. Uz procenu rizika, izvedene su analize skenirajuće elektronske mikroskopije biofilmova i hidrogeohemijsko modeliranje, te makroskopska, otpička i difrakciona ispitivanja naslaga inkrustacije, dok je fizičko-hemijskim analizama utvrđena vrednost ukupne mineralizacije iznad 1 g/L, kao i povišeni ...
    biohidrogeologija, SEM analize, makroskopska i optička ispitivanja, rendgenska difrakcija praha, hidrogeohemijsko modeliranje, BART analize, metabarkoding analize mikrobioma, fizičko-hemijske analize, starenje bunara (biokorozija, biohemijska inkrustacija i biozarastanje), zdravstveni rizik
    ... cal and hydrogeological assessment of groundwater in southern Italy. Environmental Monitoring and Assessment, 188, 638. Doi: https://doi.org/10.1007/s10661-016-5655-y Demir, M. M., Baba, A., Atilla, V., & Inanlı, M. (2014). Types of the scaling in hyper saline geothermal system in northwest Turkey ...
    ... (1989). Magnesium-silicate scaling in mixture of geothermal water and deaerated fresh water in a district heating system. Geothermics, 18 (1-2), 113- 120. Gunnlaugsson, E., Ármannsson, H., Thorhallsson, S., & Steingrímsson, B. (2014). Problems in geothermal operation – scaling and corrosion. Goethermal ...
    ... associated with the rhizosphere of crops: an overview. Brazilian Journal of Microbiology, 37 (4), 401-416. Brown, K. (2013). Mineral scaling in geothermal power production. United Nations University. Burrows, S. M., Elbert, W., Lawrence, M. G., & Pöschl, U. (2009). Bacteria in the global atmosphere-Part ...

  • Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji

    Ljiljana R. Kolonja (2016-09-23)
    Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...
    rudarstvo, bezbednost i zdravlje na radu, poslovna inteligencija,tehnička zaštita, ontologije
    ... diseases should enable, with the application of modern information technologies, a complex and comprehensive analysis of collected data, the assessment of the performance of applied protection measures, as well as the advancement of the decision‐making process related to the improvement ...
    ... bezbednost i zdravlje na radu OH&S ‐ Occupational Health and Safety ‐ Politiku bezbednosti i zdravlja na radu OHSAS – Occupational Health and Safety Assessment Series ‐ Sistem upravljanja zaštitom zdravlja i bezbednošću na radu OHSMS ‐ Occupational Health and Safety Management System ‐ Sistema upravljanja ...
    ... OHSAS 18001 Standardi serije 18000 bave se upravljanjem i zaštitom zdravlja i bezbednošću na radu. Oznaka OHSAS – Occupational Health and Safety Assessment Series, prevodi se kao: sistem upravljanja zaštitom zdravlja i bezbednošću na radu, mada je prisutan i termin: bezbednost i zdravlje na ...

  • The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments

    Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)
    The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...
    sediments, Tisza River, organic matter, biomarkers, oil pollutants
    ... Tisza River from Kanjiža Town to the confluence into the Danube River, along a distance of 153 km, contained the same type of oil pollutant. Assessment of the oil pollutant source Based on previous discussion, it was established that sediments of the Tisza River, in addition to some singenetic ...