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305 items
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Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geološki, geofizički i hidrogeološki uslovi / Conceptual model of hydrothermal system of Brus area - geological, geophysical and hydrogeological condition
Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović (2024)Na širem području Brusa izvedena su naučna multidisciplinarna istraživanja za potrebe ocene geotermalnog potencijala sa zadatkom de9inisanja uslova formiranja geotermalnih i termomineralnih resursa. Interpretacijom podataka zaključeno je da je na predmetnom terenu formiran "hibridni" hidrogeotermalni sistem, koji sadrži elemente sistema u rov-strukturi i elemente konvektivnog hidrogeotermalnog sistema sa rezervoarom u pokrivaču granitoidne intruzije. Sistem čine dva nezavisna hidrogeotermalna rezervoara. Prvi rezervoar formiran je u gornjokrednim krečnjacima na dubini od oko 1550 m. Maksimalne prognozne temperature hidrogeotermalnih resursa u krečnjačkom ...Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović. "Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geološki, geofizički i hidrogeološki uslovi / Conceptual model of hydrothermal system of Brus area - geological, geophysical and hydrogeological condition" in XVII Srpski simpozijum o hidrologiji sa međunarodnim učešćem , Pirot, Srbija, 02-06. October 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739406
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Палеогеографска реконструкција јадарског блокатоком млађег палеозоика
Весна Цветков (2018)... , SCHUSTER, R.,TISCHLER, M., USTASZEWSKI, K., (2008): The Alpine- Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units. Swiss J. Geosci., 101, 139-183 VAN DER VOO, R. (1990): Phanerozoic paleomagnetic poles from Europa and North America and comparisons with continental ...Весна Цветков. "Палеогеографска реконструкција јадарског блокатоком млађег палеозоика" in Симпозијум Никола Пантић - човек и природа у спирали времена (90 година од рођења научника), Зборник радова, Српско геолошко друштво (2018)
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Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)
Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković (2018)... massif, thermochronology. Studies on recent tectonic setting of the Pannonian Basin argue for the internal deformation of principal tectonic units constituting the basement of the basin, rather than motion along the boundaries of large‐scale fully rigid blocks (Bada et al., 2007). The Juhor M ...Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković. "Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Using gravity data to define structural correlation affecting the formation of Neogene basins
A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović. "Using gravity data to define structural correlation affecting the formation of Neogene basins" in The 54th International October Conference on Mining and Metallurgy, Bor Lake, Serbia, 18-21 October 2023, Bor : University of Belgrade, Technical Faculty in Bor (2023)
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Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian
The training of new tagger models for Serbian is primarily motivated by the enhancement of the existing tagset with the grammatical category of a gender. The harmonization of resources that were manually annotated within different projects over a long period of time was an important task, enabled by the development of tools that support partial automation. The supporting tools take into account different taggers and tagsets. This paper focuses on TreeTagger and spaCy taggers, and the annotation schema alignment ...... cently added formats particularly designed for tagger train- ing tasks. It comprises of more than 210,000 lemmas, 3955 including simple- and multi-word units (MWUs), proper names, general- and domain-oriented lexica. Its basic tagset is similar to the one used by the Serbian TreeTag- ger models built ...
... notation set in both the lexicon and the training corpora was expanded accordingly. An independent tagger that relied on SMD (simple- and multi-word units) and a grammar for named entity tag- ging (Krstev et al., 2014) was produced, and it used Condi- tional Random Fields (Constant et al., 2018) ...
... only simple words these complex units had to be decom- posed into simple words. For instance, Devetnaesti vek ‘Nineteenth century’ which was tagged as tempo- ral named entity had to be separated to two tokens: the adjective devetnaesti and the noun vek. • Same word tokens were assigned different ...Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić. "Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian" in Proceedings of the 12th Language Resources and Evaluation Conference, May Year: 2020, Marseille, France, European Language Resources Association (2020)
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Application of MCDA in the determination of optimal block size for open-pit modelling and mine planning
The process of creating a geological block model as the basis for a further detailed design and planning of mining operations is a very responsible task. Errors made during this initial process are transferred to all other phases of the mining project. Certainly, one of the most important decisions for the modelling process is the choice of the appropriate size of the blocks that form the model itself. The determination of the optimal block size is not a simple ...dimenzije minibloka, višekriterijumska analiza, AHP, modeliranje ležišta, planiranje na površinskim kopovimaPetar Marković, Dejan Stevanović, Milica Pešić Georgiadis, Mirjana Banković. "Application of MCDA in the determination of optimal block size for open-pit modelling and mine planning" in Underground Mining Engineering, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2021)
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Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept
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 ...Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov. " Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept" in Engineering Geology , Elsevier (2019). https://doi.org/10.1016/j.enggeo.2019.05.007
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Building Terminological Resources in an e-Learning Environment
... 436-441, 2006. [6] Krstev, C., Stankovic, R., Obradovic, I., Vitas, D., Utvic, M., Automatic Construction of a Morphological Dictionary of Multi-Word Units, in IceTAL. Reykavik, Iceland: Springer, pp. 226–237, 2010. [7] Krstev, C., Stankovic, R., Vitas, D., Obradovic, I., The Usage of Various ...
... general terms, namely those not strictly related to mining engineering, but indispensable for information systems in this area (e.g. measurement units), as well as meta-classifications (file formats, data types, and the like). Controlled dictionaries derived from RudOnto also serve for validation ...Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja. "Building Terminological Resources in an e-Learning Environment" in Proceedings of the Third International Conference on e-Learning, eLearning-2012, September 2012, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2012)
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... leakage, and consecutive hydrometric measurements along characteristic sections of the tunnel. Qualitative prospecting was carried out in situ, using a multi parameter probe (for pH, oxidation-reduction potential—ORP, electrical conductivity—EC, dissolved oxygen—O2, and temperature—T), and included all leakage ...
... l section of the tunnel, including elevations. In geological terms, the tunnel was built through the contact of two regionally important tectonic units (Getic and Danubian), which are represented by a system of east-vergent thrusts. The most significant is the Vidlič thrust, which the tunnel intersects ...
... 17 ◦C. The higher range (>12 ◦C, from 5 + 940 to 7 + 600 m) was measured in the deeper part of the rock mass along the contact of the main tectonic units (Vidlič thrust). Measurements of water losses at the control gate (Figure 4) showed an elevated water temperature, which may be a result of groundwater ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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A Fuzzy Expert Model for Availability Evaluation
Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...... systems or products. REFERENCES [1] Tanasijević M., Ivezić D., Jovančić P., Ćatić D., Zlatanović D., Study of Dependability Evaluation for Multi-hierarchical Systems Based on Max–Min Composition, Quality and Reliability Engineering International, 29(3), 317-326, 2013. [2] Д.Я. Крунич, С ...
... fuzzy inference engine. Fuzzy sets are in triangular form and these are shown in figure 2, in relation to membership function (μ) and measurement units of A indicators (j = 1 … n). The fuzzy sets of R, M and S indicators have the same form. Values j can be an hour, a moto hour, etc., depending on ...
... adequate, average, good and excellent. Fuzzy sets are in triangular form, and they are presented in relation to membership function (μ) and measurement units of A indicators (j = 1 … 5). Defined A fuzzy set can be written as: - poor = (1/j=1, 0.25/j=2, 0/j=3, 0/j=4, 0/j=5); - adequate = (0.25/j=1, ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)
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Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine
Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić. "Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945617
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Fluid inclusion systematics in the Okoška gora polymetallic deposit
... Matenco,L., Nievergelt, P.. Oberhinsli, R., Picuge Schefer, S., Schuster, R., Tomljenovič, B., Ustaszewski, K.. & van Hinsbergen, U. 3. J, 2 Tectonic units of the Alpine collision zone between Eastern Alps and western Turkey. GondwanaResearch, 78, 308374. ČLANSTVO V PROGEOJE POMEMBNA ZAVEZA ZA OHRANJANJE ...Aleš Šoster, Miloš Velojić, Barbara Potočnik Krajnc, Matej Dolenec. "Fluid inclusion systematics in the Okoška gora polymetallic deposit" in 25th meeting of Slovenian geologists, Ljubljana, 2021, Univerza v Ljubljani, Oddelek za geologijo (2021)
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Remedijacija otpadnih voda Rudnika prirodnim zeolitom
Igor Veličković (2024)U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...... Sorption of Chromate and Other Inorganic Anions by Organo-Zcolite. Environ. Sci. Technol. 1994, 28, 452—458. Janković, S., 1984. Major metallogenic units and ore deposits in Yugoslavia. In: Exp. Memoir of the Metallogenic Map of Europe, 1:2500000. UNESCO, Paris, pp. 385—395. Janković, S., 1990. ...
... 2006. The geodynamical framework of the Balkan Peninsula: its origin due to the approach, collision and compression of Gondwanian and Eurasian units. In: Robertson, A.H.F., Mountrakis, D. (Eds.), Tectonic Development of the Eastern Mediterranean Region, Geol. Soc. Spec. Publ. vol. 260. pp. 155—178 ...
... Agriculture and Aquaculture, Westview, Boulder, CO, 59, 1320. Robertson, A.H.F., Karamata, S., Šarić, K., 2009. Overview of ophiolites and related units in the Late Palaeozoic-Early Cenozoic magmatic and tectonic development of Tethys in the northern part of the Balkan region. Lithos 108 (1—4), 1—36 ...Igor Veličković. Remedijacija otpadnih voda Rudnika prirodnim zeolitom, 2024
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English for Geology Students. 2
Lidija Beko (2023)... learning by including modern educational techno- logies. As previously emphasized, the aim of teaching vocabulary is its active application and all the word lists offered will be brought to life only by their activation in many different ways and through consistent work. I would like to use this opportunity ...
... putting their own principles 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 ...Lidija Beko. English for Geology Students. 2, Belgrade : The Faculty of Mining and Geology, 2023
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... assessment and a set of predefined criteria. Various methods of multi-criteria analyses have so far been used to assess energy development scenarios: AHP (analytical hierarchy process), MAUT (multi-attribute utility theory), SMART (simple multi-attribute ranking technique) are just some of them [38]. Specialized ...
... method in multi-criteria decision-making (MCDM) that is most often used [60]. This method is characterized by the possibility to emphasize the influence of a partial indicator in the description of the synthesis indicator and to minimize the subjective influence of the model’s author. The multi-criteria ...
... Method As explained in the third step of describing the methodology of multi-criteria fuzzy analysis, when forming the outcome of the asymmetric max–min fuzzy composition for each combination, an outcome is defined with AHP multi- criteria analysis included. The element comparison matrix, as well as ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... hy of the Middle-Upper Juras- sic deposits in the Tatra Mountains was proposed by Lefeld et al. (1985). In the interval studied, the following units were distinguished: the Soltysia MarIstone Formation, com- prising the Čomy Limestone Member (spotted limestones with marls) and the Broniarski ...
... AND STABLE-ISOTOPE RESULTS The six sections of the Middle-Upper Jurassic deposits studied in the Tatra Mountains represent various tectonic units of the Križna Nappe (Table 1). Thc sections are as fol- lows from west to cast (Fig. 1): Dluga Valley (Dolina Dliuga), Lejowa Valley (Dolina Lejowa) ...
... in these regions. The Fatricum Domain of the Central Western Carpa- thians is considered to be a lateral equivalent of the Middle Austroalpine units of the Eastern Alps (e.g., Mišik ef al., 1991; Hžiusler ef al., 1993; Csontos and Voros, 2004). Al- though the Jurassic palaeogeographic position ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
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Речник САНУ као база терминолошких речника (на примеру речника кулинарства)
... (LREC), 23-28 May 2016, Portorož. 7. Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas, “Production of morphological dictionaries of multi-word units using a multipurpose tool”, In: Proceedings of the Computational Linguistics-Applications Conference, 2011. 8. Милош Утвић, „Анотација Корпуса ...
... (2000). Automatic recognition of multi-word terms:.the C-value/NC-value method. International Journal on Digital Libraries, 3(2), pp. 115-130. 6. Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić and Aleksandra Trtovac. „Rule based automatic multi-word term extraction and lemmatization ...
... that do not exist in the Dictionary (should be entered). In this research are also used syntactic graphs for the extraction of multiword lexical units that are allocated to the frequency of terms that are significantly more frequent in a culinary text than in the corpus of contemporary Serbian ...Рада Стијовић, Олга Сабо, Ранка Станковић. "Речник САНУ као база терминолошких речника (на примеру речника кулинарства)" in Словенска терминологија данас, Београд : Српска академија наука и уметности (2017)
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Indexing of textual databases based on lexical resources: A case study for Serbian
In this paper we describe an approach to improvement of information retrieval results for large textual databases by pre-indexing documents using bag-of-words and Named Entity Recognition. The approach was applied on a database of geological projects financed by the Republic of Serbia in the last half century. Each document within this database is described by metadata, consisting of several fields such as title, domain, keywords, abstract, geographical location and the like. A bag of words was produced from these ...... Search of textual databases (which is in use for several years) is derived from the basic model, which is based on the input of keywords, single or multi-word units (MWU), that can be combined into Boolean expressions. In addition to general search which goes through all fields in the relevant tables, the ...
... being developed using the finite-state methodology as described in [1], [2]. The role of electronic dictionar- ies, covering both simple words and multi-word units, and dictionary finite-state transducers (FSTs) is text tagging. Each e-dictionary of forms consists of a list of entries supplied with their ...
... words — in our case nouns, adjectives, adverbs and acronyms — followed by their frequencies. Thus, the text is lemmatized and lemmas (simple and multi-word) are extracted and their frequency is calculated. In that way 12,204 simple lemmas (with 450,418 occurences) and 271 MWUs (with 6,525 occurences) ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Indexing of textual databases based on lexical resources: A case study for Serbian" in Semantic Keyword-based Search on Structured Data Sources : First COST Action IC1302 International KEYSTONE Conference, IKC 2015, Coimbra, Portugal, September 8-9, 2015. Revised Selected Papers, Springer (2015). https://doi.org/10.1007/978-3-319-27932-9_15
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Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia
Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović . "Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia" in Groundwater: Occurrence and Significance for Human Health, CRC Press, Balkema - Taylor & Francis Group (2014)
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Environmental Energy Security Indicators as Tools for Environmental Protection
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... J., Jing, Y.Y., Zhang, C.F., Zhao, J.H., Review on multi-criteria decision analysis aid in sustainable energy decision-making, Renewable and Sustainable Energy Reviews, Volume 13 (9), 2009, pp. 2263-227 11. Konidari, P., Mavrakis D., A multi-criteria evaluation method for climate change mitigation ...
... goals of the Energy Community in the SEE region [6]. Table 5. Natural gas consumption projection [5] Scenario Referent Intensive consumption units Sector 2020 2025 2020 2025 Households 269.570 305.172 341.591 379.267 million m3 District Heating Plant 602.335 641.740 683.183 767.325 ...
... factor (Table 3). Table 6. The amount of CO2 and NOx emitted in different scenario consumption projection Scenario Referent Intensive consumption Units kCO2 56.1 kg/GJ 2020 2025 2020 2025 kNOx 0.1 kg/GJ Heat power 33.338 33.338 33.338 33.338 MJ/m3 Households 8986925 10173824 11387961 12644003 ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)