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Упит dcterms_subject_txt:Geologic information system

760 items

  • Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica

    Natalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel (2019)
    Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and Technology

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... the average failures (AF). This information was the best indicator of the intensity of breakdowns for each of the possible alternative choices. Technical availability (TA) is a characteristic which describes and evaluates the work and maintenance of a realistic system. In theory, availability represents ...
    ... open-cast mines are dozers that have a caterpillar transport system. The pneumatic transport system is used in the construction industry. The analysis of the undercarriage type (UT) implies that the dozers in question were caterpillar transport system dozers. They were divided into two groups: Dozers with ...
    ... the strength of the machine, fell into the class of strong dozers, and the information on the manufacturer, type and number are stated in Table 1. During further analysis, on the basis of the quality of the available information, Liebherr PR-752/754, Caterpillar D8R, Dressta TD25M, Shantui SD32W dozers ...

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... ronment” system and which are not sufficiently determined by traditional indicators [8]. It is essential that all approaches involve defining data—information category that is of neutral character and gets its meaning in relation to the indicator, which is necessarily meaningful information that is ...
    ... Krstic, I. Improving the management system of mining and energy complexes based on risk assessment, environmental law and principles of sustainable development. J. Environ. Prot. Ecol. 2016, 17, 1066–1075. 27. Shan, Y.; Goodrum, P.M. Integration of Building Information Modeling and Critical Path Method ...
    ... tal system modeling in energy industry is based on the use of analytical calculations, statistical analyses, definitions of economic parameters, or assessment of energy losses. System analysis based on a simulation of discrete events (representation of the real state of the environmental system, stochastic ...

  • Developing Termbases for Expert Terminology under the TBX Standard

    https://dr.rgf.bg.ac.rs/s/repo/item-set/522 (2014)
    ... central resources in a custom in-house scheme to standard formats such as TBX has been provided, by a wizard integrated in the terminological information system supporting the termbases. Keywords: Termbases, TBX standard, Language Resources, Terminol- ogy Integration and Portability 1 Introduction ...
    ... mining engineering and geology and becoming the reference resource for mining terminology in Serbian. RudOnto is managed by a terminological information system, and one of its intended uses is the production of derived terminological resources in sub-fields of mining engineering, such as planning and ...
    ... tehnoloSki parametar opreme Fig. 2: Management of RudOnto hierarchy of concepts in Serbian Figure 2 features panels from the terminological information system module that manages RudOnto; the left hand side of the larger panel shows the hyper- ✶✻ ❘❛♥❦❛ ❙t❛♥❦♦✈✐➣✱ ■✈❛♥ ❖❜r❛❞♦✈✐➣✱ ❛♥❞ ▼✐❧♦➨ ❯t✈✐➣ ...

  • A Lexical Approach to Acronyms and their Definitions

    Cvetana Krstev, Duško Vitas, Ranka Stanković (2015)
    In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.
    ... proper MWU e-dictionary lemmas that provide all neces- sary information for inflection (Krstev et al., 2010). This tool for items produced in the previous step offers one or more MWU lemmas for inflection. These lemmas provide information needed for simple word inflection for each of their components ...
    ... feminine gender singular, je is ‘is’.) At the end, we collected all information to produce dic- tionary entries for acronyms (as in Example (7)). Appro- priate forms were generated for all acronyms that inflect. Entries with information about the gender and the number were generated for those that do ...
    ... entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions. 1. Presentation of the problem Acronyms ...

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...
    nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku
    ... Ontologies; Lexicon Model for Ontologies: Com- munity Report, 10 May 2016 8. SKOS Simple Knowledge Organization System - home page 9. Protégé 10. VocBench: A Collaborative Management System for OWL ontologies, SKOS(/XL) thesauri, OntoLex-lemon lexicons and generic RDF datasets 11. The OntoLex Lemon ...
    ... natural language processing (NLP). The goal of this 15th EUROLAN School was to bring together scholars, teachers and students of linguistics, NLP and information technology to discuss the principles and best practices for repre- senting, publishing and linking linguistic data and the issues that constitute ...
    ... building on to present more specific topics in a detailed fashion on the last day, the participants had 12. FrAC – Frequency, Attestation and Corpus Information - Ontology-Lexica Community Group 116 Infotheca Vol. 21, No. 1, September 2021 Professional paper a chance to acquire a solid foundation before ...

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... and exhaustive investigations of ore deposits have been undertaken in order to collect as much information as possible for the planning and design of technological systems for deposit exploitation. System planning is an introductory activity for the design process. In the plan- ning phase, the key ...
    ... solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we present the design methodology of the hybrid system INVENTS, as well as system structure and user interface. 1. Introduction ...
    ... a hybrid intelligent system (HIS) developed with the help of available AI software libraries. 2. The INVENTS Hybrid System As we have already mentioned, the outlined approach to mine ventilation planning and design served as the basis for the development of a hybrid system named INVENTS (INtegrated ...

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... al. [16] give a general MT system overview with details on the training pipeline and decoder configuration using Moses toolkit. [5] In this research we followed their approach, albeit with available resources for Serbian. To prepare the data for the translation system, we had to perform the following ...
    ... term goal is to have platform localized to global audiences. Students can log in to Coursera and check options for type of language support with information about translation offerings in the coming months. In this phase, course lectures are translated via subtitles while all other course material ...
    ... in the image 1. Image 1: examples of segmented XML texts: English left and Serbian right Document with the extension _fs contains the information about paired segments. The method used in the alignment is based on the number of characters (length of the segment). This approach is very successful ...

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    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 ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ...      М                                     ‐   Figure 5. Natural gas transmission system in Serbia [72]. Table 4. Serbian natural gas infrastructure—main characteristics. Transmission System—Technical Information [71] Transmission operator PC Srbijagas Yugorosgaz-Transport Capacity, million m3/day ...
    ... of entries into the transmission system PC Srbijagas Yugorosgaz-Transport From another transmission system 1 (Hungary) 1 (PC Srbijagas) Indigenous production 11 – Storage 1 – Interconnectors towards Bosnia and Herzegovina 1 – Distributive network—technical information [71] Number of gas entrance to ...
    ... Availability of energy System availability index (N-1) indicating the daily operational flexibility, which describes the daily operational flexibility of the gas pipeline system, as well as the ability of the system to respond to consumption requirements in extreme conditions. System availability index ...

  • Effectiveness Analysis of Different Bucket-wheel Excavators

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić (2021)
    Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...
    bucket-wheel excavator, open-pit coal mine, mining, multi-criteria decision methods

  • 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
    ... Energy Security in the Republic of Serbia 326 THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 ment. Those are quantities that geologic and engineering information indicates that can be recov- ered with reasonable certainty in the future, from known or identified energy resources and under existing ...
    ... provide a framework for identifying, measuring and managing vulnerabili- ties of an energy system, energy security can be defined as a low level of vulnerability of the vital components of the energy system, i. e. energy sources, infrastructure, technological development [2]. Vulnerabilities represent ...
    ... Serbian SS is very low and additional activities in oil and gas exploration should be undertaken. Diversification Diversity index provides more information than simply the number and amount of en- ergy sources used. It serves as valuable tool to quantify diversity in a community and describe its numerical ...

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... at: https://openinframap.org/stats/area/United%20States [6] U.S. Energy Information Administration, Monfhly Energy Review, Table 1.3 and Table 6.2, May 2022, preliminary data for 2021 [7] EIA - U.S. Energy Information Administration, Coal explained Report, last updated: June 6, 2022, available ...
    ... the last 2 decades, the ! Minor amounts of coal are still consumed in the residential and transportation sectors. However, EIA (U.S. Energy Information Administration) no longer tracks coal consumption in these sectors. average electricity production in the EU-27 is 6492 kWh per capita, in the ...
    ... from coal. The CO» emission was analyzed in relation to the installed capacity, as well as compared to the energy produced and supplied to the system. The analysis of CO» emissions in past few decades and the projection and targets for next 30 years has been showed. The trends in emissions compared ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... (containing more information on the structural properties of the input text), but here we can explore the performance on the shorter texts [8]. The achieved results suggest that SBKE can be applied to shorter documents as well. Since SBKE is grounded in a structural and statistical information incor- porated ...
    ... very important roles when it comes to increasing the relevance and recall capabilities of a retrieval system. When these techniques are used, the number of indexes used is reduced because the system is using one index to present several similar words that have the same root or stem [12]. 2.3 Evaluation ...
    ... approach, where a network (or graph) of words is used for the representation of texts, enables the exploration of the relationships and structural information incorporated in a text very efficiently. Although, there are variations, the usual way of representing documents as a graph models words as vertices ...

  • 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, ...
    ... lexical resources, such as morphological dictionaries and semantic networks. 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 ...
    ... 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, Bucureşti, Publishing house of the Romanian academy. [3] Vitas D., Krstev C. (2007), „Extending Serbian E dictionary ...

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... a time span from one to about ten years. It provides information necessary for forecasting future production and cost. There is practical limitation in controlling coal quality during the long and medium-term planning, owing to limited information about grades. The short-term planning contains all ...
    ... the quality and the variability of the pertinent coal parameters with some degree of certainty. Coal quality cannot be controlled without some information about possible qualities of future mining blocks. The control of coal quality at the mine phase is usually planned from in-situ coal parameters ...
    ... unique to day to day operations. Grade control problems are usually in- corporated in the operational planning provided that the necessary detail information is known in advance. The most common planning objective is maximization of tonnage, while meeting the requirements of physical and geological ...

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija
    ... a statement that includes linguistic variables based on available information about the considered engineering system [17]. A definition of structure and interdependence of linguistic variables is carried out in a coordinate system of membership function (µ), with regard to j-class as a synonym of ...
    ... a statement that includes linguistic variables based on available information about the considered engineering system [17]. A definition of structure and interdependence of linguistic variables is carried out in a coordinate system of membership function (μ), with regard to j-class as a synonym of ...
    ... April 2015. 27. Aliyev, E. Development of Expert System for Artificial Lift Selection. Master’s Thesis, Middle East Technical University, Ankara, Turkey, February 2013. 28. Bowles, J.B.; Peláez, C.E. Fuzzy logic prioritization of failures in a system failure mode, effects and criticality analysis. ...

  • 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
    ... Previous Monitoring Activities (2010–2014) Automated GNSS Monitoring One of widely used system which is proven to be an effec- tive and reliable tool for landslide monitoring is Global Navigation Satellite System (GNSS). Gili et al. (2000) give a general overview of the basic principles and discuss ...
    ... large and slow-moving landslides (Mansour et al. 2011). The first automated GNSS monitoring system in Serbia was established in March 2010, on Umka landslide (Abol- masov et al. 2012). The GNSS monitoring system consists of GNSS network and supporting software solution. The net- work is consisted of ...
    ... a permanent GNSS service of accurate satellite positioning over the Republic of Serbia. The system is using two Leica Geosystems software solutions: GNSS Spider and GeoMoS (Geodetic Monitoring System). All observed GNSS measurements, with observa- tion rate of 30 s, are collected by GNSS Spider ...