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269 items

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation

  • Development Of The Serbian Geological Resources Portal

    Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić (2011)
    ... factors which determine the rel- evance of the appearance of a resource within the set of results. Entering different search criteria is provided for by JavaScript functions, while the search engine was developed with the use of PHP script language and AJAX. By using HTML and CSS for markup, JavaScript for ...
    ... and GIS tech- nologies. The largest part was realized with the use of the PHP (Hypertext Preprocessor) script language on server side and the XHTML (eXtensible HyperText Markup Language) language on the client side. In addition to this, the part of the web portal pertaining to geological terminology and ...
    ... 2008-2011, funded by the Ministry, carried out by FMG, DRAGISIC. Fig. 2. Map of the Tara National park. developed with the use of PHP script language, jQuery library for text animation and generation of detailed overview of objects, as well as external Adobe flash plug-ins, FlashPageFlip and Zoomify ...

  • Advantages and challenges in presenting mathematical content using EDX platform

    Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone (2016)
    ... strong terminological relations and an explicit and expressive domain ontology. Such a resource would facilitate quick search and analysis of mathematical content. To date, there is no publicly available resource for mathematical content management in Serbian. 7. CONCLUSION This paper discussed ...
    ... development of terminological dictionaries in various fields. The realization of the application was based on the ASP.NET Framework for C# programming language and MVC design pattern, as well as HTML and JavaScript, whereas SQL Server served as support for the database. The application is located at h ...
    ... bases are needed. According to [11] there is a great difference between natural languages and mathematical terms. For instance, in Serbian natural language the word “prava” is an adjective but within mathematical terms in Serbian it is a noun. Thus, there is a need for developing a Semantic, Mu ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... various types of geoprocessing tools. Python programing language was mostly used for geoprocessing and supporting calculations. The most important technical and technological factors: degraded area, volume of open pit, type of mineral resource, remediation type, type of mining site or facility, legal ...
    ... Systems AHP Analytic Hierarchy Process GIS Geographical Information Systems KML Keyhole Markup Language WMS Web Map Service WFS Web Feature Service CASE Computer-Aided Software Engineering UML Unified Modeling Language References 1. Hall, A.; Scott, J.A.; Shang, H. Geothermal energy recovery from underground ...
    ... Microsoft Visio featuring an interface with ArcGIS. The WebGIS application was developed using GeoServer, an open source tool in the Java programming language, with integrated PostgreSQL DB and the possibility of generating and publishing WMS, WFS and KML services. The WebGIS application is publicly available ...

  • Primena termografije u rudarstvu

    Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragan Ignjatović, Dragutin Jovković, Filip Miletić (2019)
    Danas, gotovo da nema oblasti u nauci i tehnici u kojoj se Infracrvena termografija ne primenjuje kao metoda za lociranje i praćenje zagrejanih objekata ili tela, beskontaktnu procenu temperature površina, i nedestruktivno ispitivanje materijala. U radu su prikazane mogućnosti i perspektive primene ove metode u oblasti rudarstva.
    infracrvena termografija, rudarstvo, monitoring
    ... pozicijama u rudarskim kompanijama shvate prednosti primene ovih uređaja. Literatura [1] Gaussorgues G., Infrared Thermography. English language edition, Berlin, Germany: Springer-Science+Busness Media,1994. [2] Maldague X. P. V., Active Thermography in Nondestructive evaluation of materials ...
    ... Imaging to Solve Lubrication Problems URL: https://www.machinerylubrication.com/Read/583/thermal-imaging-lubrication [21] The Definitive Internet Resource for Infrared Thermography: Common Thermography Uses and Applications within the Petrochemical, Offshore Oil and Gas, Chemical, and Power Generation ...
    ... .irinfo.org/02-01-2009-james/ [22] Snell J., Schwoegler M., Locating Levels in Tanks and Silos Using Infrared Thermal Imaging, Electrophysics Resource Center: Thermal Imaging URL: http://www.energymonitoring.ie/uploads/1/2/6/5/12656650/wp-locating-levels-in- tanks.pdf [23] Kruczek T., Particular ...

  • 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

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... in one language (for example Serbian) may be created on basis of an existing synset in another language (for example English). In order to support this feature, the module en- ables the usage of bilingual, parallel word lists which can help in translation of synset literals in one language synset ...
    ... words of a par- ticular language systematized and organized in a specific manner, are developed in various for- mats. Thus, for example, several different types of e-dictionaries, along with other lexical and textual resources, are being developed within the Human Language Technology Group, which ...
    ... BalkaNet languages are spoken, but also from France and Netherlands. A national development team was formed for each language, and in the case of Serbian this team was the Human Language Technology Group at the University of Belgrade. Upon the termination of this project, the development of SWN contin- ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... adjustable tool, a workstation for language resources, labeled WS4LR, which greatly enhances the potential of manipulating each particular resource as well as several resources simultaneously [9]. This tool has already been successfully used for various language processing related tasks including ...
    ... Belgrade) IMPROVEMENT OF GEODATABASE QUERIES WITHIN GEOLISS Abstract: We present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for improvement of queries for the geodatabase within the Geological information system ...
    ... models [1], [2], interchange schemes [3], and standards proposed by ISO TC211 [4]. The design is also significantly influenced by the Ontology Web Language (OWL). GeolISS is implemented using ESRI ArcGIS technology [5], and designed to function as a personal geodatabase and SDE enterprise geodatabase ...

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... countries. Before the mining process begins, companies develop mining plans that outline the process of land disturbance to obtain the mineral resource. The mining plan also outlines a reclamation procedure to restore the land to a productive post-mining land use (Skousen and Zipper, 2014) .This ...
    ... Wiley-Blackwell: Hoboken, NJ, USA, pp. 20-22. PRESTON, B .J. (2018) Environmental Justice and Land Use Conflict: The Governance of Mineral and Gas Resource Development. J. Energy Nat. Resour. Law, 36, pp. 364— 369. LISTIYANI N, SAID MY, KHALID A. (2023) Strengthening Reclamation Obligation through ...

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • 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
    ... 92 Operational costs [€/mh] 37.95 35.69 41.45 35.01 Human resource costs [€/mh] 11.79 11.79 11.79 11.79 Table 8. Results of the pair-wise comparison of economic sub-criteria: Ownership costs (OW), operational costs (OP), and human resource costs (HR). Ownership Costs (OW) Operational Costs (OP) T1 ...
    ... the equipment and machines used there. The sub-criteria implemented into the economic parameters were: Ownership costs, operational costs, and human resource costs [33]. When estimating the ownership costs (OW), the necessary information was the delivery price of the machine, while for the amortization ...
    ... The operational costs (OP) included the cost of fuel, lubricants and oils, maintenance and the cost of hiring the maintenance staff. The human resource costs (HR) were identified as the amount of costs of hiring machine operators. To calculate the costs, the necessary information was: Shift duration ...

  • Developing Termbases for Expert Terminology under the TBX Standard

    http://gabp-dl.rgf.rs/s/repo/item-set/522 (2014)
    ... easily adjustable tool for language resources, LeXimir, also developed at FMG within the Human Language Tech- nology group at the University of Belgrade [8]. This tool can handle several lan- guage resources simultaneously, thus enhancing the potential of each particular resource in realizing a task, in ...
    ... information on the Language level () and Term level for Serbian term lezigste mineralnih sirovina (deposit of mineral resource) with related broader concept ekonomska geologija (economic geology), and related concepts pojava mineralnih sirovina (occurence of mineral resource), rudno telo (ore ...
    ... mineral resource) resulting from export is given in Figure 9, show- ing information that can be associated with the concept level, like subject- Field, relatedConcept, relatedConceptBroader, relatedConceptNarrower and the like. A complete description of the term is generated for each language represented ...

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... ~/corpus/edX.clean 1 80 Language Model Training A language model (LM) is used to ensure fluent output, built with the target language, in our case English. Following script creates lm folder, positions in it and finally execute command that will build an 3-gram language model. mkdir ~/lm cd ...
    ... forms i of a target language for which C(i|y) > 0, C(x) is the frequency of occurrences of a word x in the target language, while C(x|y) represents the frequency of a word x from the target language occurring in the same segment with the chosen word y from the source language. Summing is done for ...
    ... statistical description of a parallel corpus of source-target language sentence pairs, created during the training process. The frequencies of n-grams in a source language text that co-occur with n-grams in a parallel target language text represent the probability that those source-target paired ...

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... 8, doi: 10.3389/fenrg.2020.560849. 19. Oresome resources- Minerals and Energy Education. Available online: https://www.oresomeresources.com/resource/oxyfuel-combustion-fact-sheet/ (accessed on 05 August 2021). https://iea.blob.core.windows.net/assets/d0031107-401d-4a2f-a48b-9eed19457335/Glo ...
    ... .globalccsinstitute.com/about/what-is-ccs/capture/ https://www.globalccsinstitute.com/about/what-is-ccs/capture/ https://www.oresomeresources.com/resource/oxyfuel-combustion-fact-sheet/ 256 20. Zhenhong, B.; Kokkeong, L.; & Mohdshariff, A. Physical Absorption of CO2 Capture: A Review. Advanced ...

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... enhances the potential of manipulating each particular lexical resource as well as several resources simultaneously [10]. Although the resources and tools have already been successfully used for a number of various language processing related tasks including query expansion, they need further ...
    ... Environment Based on Serbian Language Resources Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A Mathematical Learning Environment Based on Serbian Language Resources | Radojičić Marija ...
    ... Čačak, Serbia, 25-27th May 2018 Session 2: IT Education and Practice UDC: 51-7 248 A Mathematical Learning Environment Based on Serbian Language Resources Marija Radojičić1*, Ivan Obradović2, Ranka Stanković2, Miloš Utvić3, Sebastijan Kaplar1 1 University of Novi Sad/Faculty of Technical ...

  • Combining Heterogeneous Lexical Resources

    Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    development of lexical resources, morphological dictionaries, WordNet
    ... representing wordnet using the XSD from the Fig 1 all the nouns without hypernyms, i.e. first in a hierarchy. In this environment an Integrated Language Resource Management Tool (ILReMaT) has been developed. This tool supports the development of a wordnet in accordance with the EWN, and enables its ...
    ... the other hand, the XML Schema definition language (XSD) enables the definition of the structure and data types of XML documents. Figure 1 shows the graphical representation of XSD schema of Serbian WN. The XML Path Language (XPath) provides a language for addressing parts of an XML document ...
    ... Resources | Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić | Proceedings of the Fourth Interantional Conference on Language Resources and Evaluation, Lisabon, Portugal , May 2004, vol. 4 | 2004 | | http://dr.rgf.bg.ac.rs/s/repo/item/0004863 Дигитални репозиторијум Ру ...

  • Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia

    Dragoljub Bajić, Dušan Polomčić (2014)
    A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...
    groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables
    ... 11000 Belgrade, Serbia, e-mail: dupol2@gmail.com DOI: 10.2298/GABP1475103B defined as the variable whose permissible values are words of natural language, and not numbers. Apart from their symbolic linguistic form, linguistic vari- ables also have a quantified analytical form-member- ship function, ...
    ... linguistic variables suitable for qualitative-symbolic and quantitative-numerical cal- culations. A correlation is thereby established between the natural language used by man and the numerical data used by a computer. In recent years there has been a rapid increase in the number and types of applications of ...
    ... control systems: Case study of the pumping station 109 Table 2. Ultimate evaluation of alternatives. evaluation and fuzzy sets analysis. Water Resource Ma- nagement, 18: 13–33. KOSKO, B. 1993. Fuzzy thinking: The new science of fuzzy logic. Hyperion, New York, 336 pp. LAI, Y.J. & HWANG, C.L. 1996 ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... of aligned texts, conversions from one coding scheme to another, and migration from one resource format to another. Although WS4LR has mainly been used for resources in Serbian, it is not a language dependent tool. All of its func- tions are usable for resources in other languages provided ...
    ... this module enables update of existing synsets, but also creation of new ones. A new synset in one language (for example Serbian) may be created on basis of an existing synset in another language (for example English). In order to support this feature, the module provides access to bilingual ...
    ... Improve the Performance of Web Search Engines”, in Proceedings of the Sixth Interantional Conference on Language Resources and Evaluation (LREC'08), Marrakech, Morocco, European Language Resources Association (ELRA), May 2008. [13] R. Stanković “Improvement of geodatabase queries within GeolISS” ...

  • Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian

    Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić (2020)
    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 ...
    Part-of-Speech tagging, lemmatization, corpus, evaluation, Serbian, morphological dictionary
    ... Contemporary Serbian. INFOtheca, 12(2):36a–47a, December. 8. Language Resource References Cvetana Krstev, Duško Vitas. (2015). Serbian Morpho- logical Dictionary - SMD. University of Belgrade, HLT Group and Jerteh, Lexical resource, 2.0. Duško Vitas, Cvetana Krstev, Ranka Stanković, Miloš ...
    ... Conference on Language Resources and Evalu- ation (LREC’16), pages 4264–4270, Portorož, Slove- nia, May. European Language Resources Association (ELRA). Manning, C., Surdeanu, M., Bauer, J., Finkel, J., Bethard, S., and McClosky, D. (2014). The Stanford CoreNLP Natural Language Processing Toolkit ...
    ... - The Repository is available at: www.dr.rgf.bg.ac.rs Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), pages 3954–3962 Marseille, 11–16 May 2020 c© European Language Resources Association (ELRA), licensed under CC-BY-NC 3954 Machine Learning and Deep Neural ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... that existed in the previous period. The database that we checked and analyzed also included a large number of papers published in the Serbian language, and the most important sources of information were numerous papers and studies in which geology, mineralogy and origin of different indus- trial ...
    ... permitting because per- mitting procedures are usually different for state-owned/state-controlled minerals and for land owned. Likewise, the mineral resource permitting regimes may be centralized, de- centralized or mixed [5]. All mineral commodities in Serbia are public property of the state. Geological ...
    ... the large impact of complicated exploration and evaluation systems on better valorisation of industrial min- eral and rocks in Serbia, based on resource studies of industrial clays obtained in Serbia in the last 60 years. The differences in the approach to the problem of reporting (classifi- cation ...