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Упит dcterms_subject_txt:Nature and Landscape Conservation

2348 items

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Development of integrated fuzzy model for mine management optimization

    Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)
    fuzzy logika, višekriterijumsko odlučivanje, ocenjivanje eksperata
    ... Ko – safe and healthy work environment, Ky - extractable ore reserves, and K+ — coefficient of ore de- pletion. The considered mining: technology options, based on the natural setting, included: Ai — block caving, Ao — sublevel caving, A3 — cutting and filling, and Aa – room and pillar mining ...
    ... inherent uncertainties, vagueness, and inaccuracies. As a result, subjective evaluation by engineers and expert experience have become increas- ingly important. Given that the natural language used by miners and geologists is most suited for relaying: knowledge and expressing; opinions, the paper ...
    ... underlying: and overlying, limestones. The underlying limestones are solid homo- geneous rocks, with numerous fractures and a number of fault zones. Expert experience suggested potential problems for certain types of mining. operations. Additionally, also based on experience and the physical and mechanical ...

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • Petrographical and organic geochemical study of the subbituminous coal from the Dubrava field, Aleksinac basin (Serbia)

    Željana Sekulić, Ksenija Stojanović, Achim Bechtel, Reinhard Sachsenhofer, Miomir Petrović, Ivan Kojić, Dragana Životić (2019)
    ... parts of the Main coal seam and coal layers within and under lower oil shale package. Since vitrinite reflectance (%Rr, 0.44 + 0.03 - 0.46 + 0.02) and biomarker compositions indicate the same maturity stage of organic matter (OM), corresponding to late diagenesis and early catagenesis, petrographic ...
    ... n (С15-Сг0) and increase of long-chain (Cz6-Ca3) homologues. The obtained results suggest lowering of the water table during the formation of the Main coal seam. This change resulted in lesser inundation and deposition of MM associated with smaller input of bacterial and algal OM and higher contribution ...
    ... proxies and stable carbon isotope ratios (6'3) of individual biomarkers were used to evaluate the origin and depositional environment of OM. The content of vitrinite group macerals increases from top to bottom of the Main coal seam which is associated with a notable decrease of liptinite and mineral ...

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... roof and floor conditions, rock pressure and geo-mechanic conditions (criteria C2); • Mining hazards, such as gas, water, dust and potential for gas outbursts and spontaneous combustion (criteria C3); • Potential for mechanization, such as seam inclination, seam thickness, floor and roof ...
    ... facilities and supply facilities (criteria C4); • Quality of coal and products, such as coal type, sulphur content, ash content, moisture content, calorific value and amount of fines (criteria C5); • Market and delivery possibilities, such as current markets served, the distance to the market and transport ...
    ... (Soko, Strmosten pit in REMBAS mine, Lubnica and Štavalj) and for closure of those mines without potential (Tadenje and Jarando pits of Ibarski mines, Senjski rudnik pit of REMBAS, Bogovina and Vrška Čuka). This approach leaves Jasenovac mine and Block IV pit of REMBAS mine in between these two ...

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... of clarity and coherence as a way in which they wish to teach the subject of English language and geology. Six thematic units: 1. Landslides 2. Metamorphic rocks 3. Mineral deposits 4. Hydrological cycle and groundwater 5. Surface water and glaciers 6. Geophysics, seismology and prospecting ...
    ... Faculty of Mining and Geology who have provided Foreword me with valuable assistance, relevant literature and insights, and who have pointed out specific geological terms and translations of those terms in order for me to use them correctly. My reviewers, prof. dr Juliana Vučo and prof. dr Dragoslava ...
    ... conscientiousness and kindness selflessly helped me in all segments of making the textbooks and to whom 1 owe a lot of knowledge aboutlanguage, art and culture.1 use this opportunity to extend a big and heartfelt “thank you” to him. Wulfenite > 10 . Part3 NMetals and gemstones All three ...

  • 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
    ... best be described by dictionaries in the form of finite-state transducers (FST), and a number of them were produced for Serbian as well [6]. Other contiguous MWUs that are idiosyncratic in nature, namely nouns and adjectives, have to be lexically described in a similar way as simple words. That ...
    ... number and case) • Noun/noun (both inflect and agree in number and case) • Noun/noun in the genitive (only the first noun inflects) • Word/noun (only the second noun inflects; the first word is usually not a Serbian simple word) • Noun/adjective (both inflect and agree in gender, number and case) ...
    ... that it enables inflection of simple words, MWUs and free phrases supplied as key-words to Google. The tool relies on Serbian e-dictionaries, inflection transducers for simple words and MWUs, and uses Unitex and Multiflex modules for inflection and dictionary look-up. As for the free phrases that ...

  • Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model

    Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević (2024)
    Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...
    zero-shot, few-shot, sentiment, Serbian, Mistral model

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... words and DELAF dictionaries of their morphological forms, with more than 120.000 simple words and 1.400.000 word forms. In addition to that, dictionaries of compounds named DELAC for the lemma dictionaries and DELACF for their 287 An Integrated Environment for Management and Ex ...
    ... their volume and content, their maintenance and develop- ment became more and more complex. In addition to that, there was also a growing need to use several different re- sources for solving a particular task. Thus the development of a software tool for maintenance and integration of multi- ...
    ... selected both in SWN (lower left side) and the English wordnet (lower right side). The user can now com- pare all synsets containing the literal “zemlxa” in SWN and the literals “country” or “land” in the English wordnet, and consequently perform appropriate updates and additions in SWN. This module ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... etc.) and its derivatives. For instance, if meronymy relation is established between concepts ‘New York’ and ‘United States of America’, then their Serbian Latin equivalents Njujork and Sjedinjene Američke Države, Serbian Cyrillic equivalents Њујорк and Сједињене Америчке Државе, and Bulgarian ...
    ... these tools was until now used only for Serbian, and in bilingual context, for Serbian and English. In this paper we will show that tools WS4LR and WS4QE are truly independent both from Serbian, for which they were initially developed, and from English which seems to be in the background ...
    ... prove the usability of WS4LR and WS4QE for languages other then Serbian and English we used various resources, both textual and lexical. In the following sections we will briefly present these resources, what methodological framework was used for their development, and how they were integrated ...

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)

    Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick (2024)
    Triassic, Carnica event, clay mineralogy, conodont biostratigraphy, Neo-Tethys

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities

  • The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

    Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan (2008)
    In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...
    LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval
    ... ‘onion’ and one for the compound as whole which takes care of agreement conditions. These transducers expand the query beli luk into beli luk AND belim lukom AND beli lukovi AND belih lukova AND belima lukovima AND belim lukovima AND bele lukove AND bela luka AND beloga luka AND belog luka ...
    ... language ć, č, š ,ž ,đ, dž, lj and nj, are internally coded as cx, cy, sx, zx, dx, dy, lx and nx, respectively) 222 Figure 2. Semantic expansion of a query The query, now composed of two Latin and two Cyrillic strings was then submitted by WS4QE to Google and, as a result, a total of 92 ...
    ... Faculty of Mining and Geology, Belgrade 3 professor, Faculty of Mathematics, Belgrade, 4 professor, Faculty of Mining and Geology, Belgrade E-mail: cvetana@matf.bg.ac.yu, ranka@rgf.bg.ac.yu, vitas@matf.bg.ac.yu, ivano@rgf.bg.ac.yu Abstract In this paper we present how resources and tools developed ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... destruction, and part of energy, in the form of seismic wave, is lost in the rock mass causing rock mass oscillation. Investigations of the character and behavior of the pattern of seismic wave indicate that the intensity and nature of the seismic wave are influenced by rock mass properties, and by blasting ...
    ... vN and appropriate reduced distances R1, R2, ..., RN and having in mind relations (22) and (27), we will calculate the value of ST according to Equation (29). For each pair (xi, yi + 3) from Equation (35), we will determine the Minerals 2018, 8, 70 8 of 18 parameters Ai, i = 1, 2, ..., N, and in ...
    ... 0;3, as Well as the difference between recorded and calculated rock mass oscillation velocities for models 1, 2 and 3. Minerals 2018, 8, 70 17 of 18 Table 7. Survey of recorded and calculated rock mass oscillation velocities for models 1, 2 and 3. No. R vr (cm/s) vi1 (cm/s) vi2 (cm/s) vi3 (cm/s) ...

  • BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties

    Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)
    To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...
    ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition
    ... (NiFe)Ou) with an inverse spinel structure and soft magnetic nature, zinc ferrite (ZnFe>Ou) with ferrimagnetic behavior in the nano- metric range, alongside with mixed nickel zinc ferrites, stand out because their coercivity, electrical conductivity, and saturation magnetization can be easily tuned ...
    ... surface and processing of obtained structures into dense ceramics. The effect of structural properties and phase composition, as well as two sintering; schedules on dielectric and ferroelectric properties of synthesized ceramic composites, was studied and explained in detail. 2. Results and Discussion ...
    ... , LP., M.M.M., A.D., A.K., V.B.P, A.K.-G. and L.A.; Resources, M.Š., LP., M.M.M., A.D., A.K., V.B.P, A.K.-G. and L.A.; Writing—Original Draft, MŠ. and L.A.; Writing—review and editing, MŠA., V.B.P.and L.A.; Supervision, L.A. All authors have read and agreed to the published version of the manuscript ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... carbon-dioxide and hydrogen. The last phase is methane production by methanogenic bacteria which either dissolve those acids into methane and carbon-dioxide or reduce carbon-dioxide with hydrogen (Themelis and Ulloa, 2006). Looking at the research done by the Environmental and Energy Study Institute ...
    ... M.H. (2004) Tutorial: 2-D and 3-D electrical imaging surveys. Geotomo Software, Res2dinv 3.5 Software. MARKOVIĆ, J. and STEVOVIĆ, S. (2016) The process of creation and analysis of the landfill gas from the landfill in the region of Pchinja. Journal on Processing and Energy in Agriculture, 20 ...
    ... Scientific Research and Reports, 8 (6), pp. 1-13. SRETENOVIĆ, B. (1998) Report on the geoelectrical survey conducted at the former waste dump site ar Karaburma. Faculty of Mining and Geology, Geotechnical Institute, Belgrade. SUPAWEE, M. and WANLOP, H. (2014) Rheological and mechanical properties ...

  • New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)

    Nevenka Đerić, Nataša Gerzina (2014)
    Gornja kreda, radiolarije, Jadar blok, zapadni pojas Vardarske zone, zapadna Srbija
    ... housed at the Faculty of Mining and Geology in Belgrade (registration numbers BR 1/1, BR 1/2 and BR 1/3). 4.SECTION DESCRIPTION AND BIOSTRATIGRAPHY Inthe wider area of Brežđe, MARKOVIĆ & ANĐELKOVIĆ (1953) distinguished Albian-Cenomanian, Cenomanian, Turo- nian and Senonian sediments. According ...
    ... G, 1996). 5. DISCUSSION AND CONCLUSIONS After the Late Jurassic obduction and subsequent erosion in the Dinaridic-Hellenic belt, Cretaceous synorogenic basins were formed and filled with clastic material composed of variable amounts of ophiolitic, terrigenous and carbonate detritus (LUŽA ...
    ... sediments - ggr“gngg mćlange and Miocene dacite Cretaceous sediments - gg:)%()szigc and Triassic Paleozoic granite <= snnistal strike-slip fault == Dextal strike-slip fault —— Pre-Senonian thrust — — Post-Senonian thrust — 7Majorsyncline = Major anticline Figure 2:A simplified and modifted geological ...

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • 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
    ... investments and develop markets. Energy security is one of the most important indicators in determining the current state and defining the future development. Bearing in mind that demand for energy in the South East Europe is growing, and that supply sources are increasingly limited and unevenly ...
    ... security is one of the most important indicators in determining the current energy and economic situation and orienting the future development. Considering that energy demand is increasing, and supply sources become limited and unevenly distributed, the energy security is becoming an essential indicator ...
    ... logic and the fuzzy conclusion considering energy, economic, ecological and social indicators. If the goal of the model is to decide on a scenario assessment that would demonstrate a rational, sustainable and energy-friendly development plan, technical or energy, political, economic and environmental ...