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Упит dcterms_subject_txt:energy related emissions

518 items

  • Electronic Dictionaries - from File System to lemon Based Lexical Database

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... (BabelNet, DB- pedia, WordNet), proving that it can be useful in bringing complementary lexical resources together within a single framework. 2. Related work In order to develop a concrete and general model of dic- tionaries, it is essential to distinguish between the formal model itself and the ...
    ... the type of the feature, while a value makes it more specific. For instance, in the marker +DOM=Math the attribute +DOM indicates that a lemma is related to a certain do- main, whereas the value specifies this domain to be mathematics (e.g. diedar,N3+DOM=Math). Val- ues assigned to a certain attribute ...
    ... which is a hydronym (+Hyd), which is a geographic concept (+Top), and thus all three are assigned to the lemma Dunav ‘Danube’. Some lemmas are related by some sort of “inverse” relation, which indi- cates that if one lemma has a certain feature, then at least one other lemma exists with an “inverse” ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... Comprehensive, consistent and standardized definition of terms in a specific area are crucial for ensuring interoperability among IT applications related to this area. This goal can be achieved in developing central terminological resources in the form of thesauruses or ontologies, which can then be ...
    ... hierarchies among terms, represented by a hierarchical tree. Terminological resources with a hierarchy among terms are called taxonomies, and they can be related to a specific area or a specific corporation. Examples of such resources are the WAND Mining Taxonomy, which contains over 900 terms and 200 synonyms ...
    ... within the model is the class Rečnik, implemented as an abstract class. Concepts, which can be either general, common to all subfields, or specific, related to a specific filed, are represented by the class Koncept. The hypernym/hyponym relation in the model is implemented by involution, which means that ...

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... improvement. Acknowledgements This paper was realized as a part of the project "Improvement of Lignite Opencast Technology in Order to Increase Energy Efficiency and Occupational Safety" (TR 33039) financed by the Ministry of Education and Science of the Republic of Serbia. References 1. ...
    ... Mining engineering, as all other engineering disciplines, generates large amounts of heterogeneous data and needs interoperability among various related information technology applications and knowledge assets, supported by knowledge management analytical services implemented in a business intelligence ...
    ... order to ensure safe and efficient integration of new workers as well as retention of aging workers [3]. Business intelligence (BI) is closely related to KM and the two of them are often regarded as one and the same within the entrepreneurial community. However, BI is more focused on decision ...

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • VENTEX: An Expert System for Mine Ventilation Systems Analysis

    Ranka Stanković, Nikola Lilić, Ivan Obradović (1996)
    Analiza sistema za ventilaciju je komleksan proces, koji bazira na proračunu brojnih parametara, koji se odnose na: stanje mreže, provetrenost, stabilnost sistema, gubitke vazduha, klimatske uslove, gasno stanje, ugroženost od požara i opasne prašine. Navedeni problemi se uspešno rešavaju paketom SimVent, ali potpuno razumevanje i korišćenje dobijenih rezultata zahteva angažovanje iskusnog specijaliste iz oblasti ventilacije. Rešenje je nađeno u kreiranju ekspertnog sistema VENTEX, čija je baza znanja formalizacija ekspertskog znanja iz oblasti ventilacije rudnika. U radu je prikazana metodologija ...
    ekspertni sistem, ventilacija
    ... procedures related to the object. In order to incorporate declarative knowledge, this model was modified by including a new (fourth) element, featuring the production (IF-THEN) rules related to an object in the model /Fig. 1/. Thus both the procedural and declarative knowledge related to a class ...
    ... procedural components, i.e. implementations of operations specified by external links, and rules declarative components of the system featuring related expert knowledge. USER USER INTERFACE KNOWLEDGE BASE INFERENCE ENGINE WORKING MEMORY INTERFACE WITH SimVent NUMERICAL ROUTINES SIMULATION ROUTINES ...
    ... editor. Slots represent values of class attributes while methods (demons) in the class/instance editor account for both methods and IF-THEN rules related to a class in the modified OOA model. As an example the Diagonals class is given in /Fig. 5/. The class has a parent class VentNetwork and three ...

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station
    ... implement the imaginary strategy and technical solutions. The most common barriers that arise in everyday practice, and refer to technical solutions related to the collection and separation of waste are (Rakic, Basaric, Caki & Coric, 2018): • poor or non-existent infrastructure for the setting of collecting ...
    ... following points (Rakic et al, 2011): • analyses and terrain preparation based on local geotechnical conditions, • the possibility of joint use of related equipment and space, without doubling the costs of technical relocation of facilities, • technological connection of planned units, • use of ...
    ... investigation works were carried out in several occasions, starting in 1998. Investigations were performed for various purposes, but were mainly related to creating the geotechnical maps which were used for Remediation Design or Landfill Closure Design. For the construction of facilities complex ...

  • Multi-word Expressions for Abusive Speech Detection in Serbian

    Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev (2020)
    Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...
    uvredljiv govor, govor mržnje, leksički izvori, višejezični leksikon, izrazi sa više reči
    ... 14 dmc moral and behavioral defects 4 11 15 is words related to social and economic disadvantage 3 3 or plants 1 1 an animals 26 10 36 asm male genitalia 2 1 3 asf female genitalia 2 1 3 pr words related to prostitution 5 5 10 om words related to homosexuality 8 8 qas with potential negative connotations ...
    ... given in Subsection 4.2. In conclusion, our main research questions related to whether MWEs include trigger words and what is their role, and are the abusive MWEs mainly compositional or not, are presented at the end of the paper. 2 Related work The use of offensive and hateful language has been a concern ...
    ... connotations 9 23 32 cds derogatory words 38 45 83 re felonies and words related to crime and immoral behavior 5 16 21 svp words related to the seven deadly sins of the Christian tradition 2 5 7 total 109 156 265 Table 2: Statistic of HurtLex MWE categories. others candidate for elimination were literate ...

  • Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7

    Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković (2019)
    Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...
    ... categories. In this way, the following were identified: A - „favourable“, B - „conditionaly favourable“ and C - „unfavourable“ sections, which are related to the complexity of the construction of planned structures on the highway route. RÉSUMÉ: Une partie de l'autoroute E-80 qui traverse la Serbie ...
    ... ions (68 geoelectrical sounds, 18 refraction profiles), mineralogical- petrological tests (Rakic, 2017). It is important to mention research related to wider area of highway route which enabled registration of large regional structures that are important for highway construction: photo-geological ...
    ... hydrogeological conditions (groundwater level, flooding), coverage of the terrain, climatic conditions, - „factors of the future“ that are related to the geotechnical complexity of planned highway structure construction (excavations, cuts, embankments, drainage etc.). The influence of ...

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... et al., 2008). Ultrasonic laboratory experiments on cores show evidence for both layering and fracture related anisotropy in different rock types (Melaku, 2007). Ultrasonic velocities are related to the properties of the stone and they can thus be applied to assess the quality of the stones, to detect ...
    ... propagation velocities are measured in the three normal directions and three orthogonal planes, respectively. The main scope of this study is related to interval numbers in order to express uncertainties of the longitudinal elastic waves propagation velocities. Based on this, we have determined ...
    ... the two types of rock samples. The investigations implied calculation of quantitative indicators of anisotropy. In order to decrease uncertainty related to external infuencing on devices, we have applied interval numbers. On that way, we upgraded previous paper (Gligorić et. al., 2017) by converting ...

  • FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain

    Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović (2021)
    U radu se daje kratak prikaz teorije semantike okvira, na kojoj je zasnovana leksička baza Frejmnet. Predstavljena je koncepcija ove mreže, kao i mogućnosti njene primene. Predstavljena je i leksička analiza koja se primenjuje u projektu izrade Frejmneta i ukazano na razlike između analize zasnovane na okviru u odnosu na analizu zasnovanu na reči. Zatim je prikazano nekoliko povezanih okvira koje prizivaju reči iz domena rizika. U radu je predstavljena i platforma NLTК pomoću koje se mogu koristiti ...
    Srpski jezik, semantika okvira, FrameNet, scenario rizika, rudarski korpus, obrada prirodnog jezika
    ... For instance, we can extract concordances for a target lemma or multi-word expression, collocates of a lemma, related-word thesaurus, Word Sketch or Word Sketch Difference for two related words. The word sketch approach, developed by Kilgarriff et al. (2004), helps build FrameNet and similar re- sources ...
    ... out the differences between the frame-based lex- ical analysis and its word-based counterpart. This is followed by an illustration of a cou- ple of related frames evoked by words from the risk domain. FrameNet data is also readily available through the Python API included in the NLTK (Natural Language ...
    ... mining- themed corpus. We also present its most common collocates, word sketch, individual pattern concordances, thesaurus entry of its synonyms and related words, collocation fre- quency graphs. A word cloud for the word risk is also included. KEYWORDS: Serbian language, frame semantics, FrameNet, risk ...

  • 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

  • Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji

    Petar Marković, Dejan Stevanović, Mirjana Banković, Vuk Lazić (2024)
    Sektor rudarstva i metalurgije se globalno suočava sa brzo evoluirajućim okruženjem u 2024. godini, koje karakteriše jedinstvena međusobna zavisnost rizika i prilika. Sektor je u središtu globalne energetske tranzicije, uz rastuću potražnju za kritičnim mineralnim sirovinama poput litijuma, nikla i bakra, koji su od suštinskog značaja za tehnologije obnovljive energije i električna vozila. Međutim, ova sve veća odgovornost donosi brojne izazove, uključujući pojačanu pažnju na ekološke, društvene i upravljačke (ESG) faktore, fizičke i tranzicione rizike uzrokovane klimatskim promenama, i ...

  • FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... Faculty of Mining and Geology, Đušina 7, 11080 Belgrade, Serbia *Corresponding author: lazark@agrif.bg.ac.rs Abstract Environmental problems related to the use of herbicides are a causing concern due to their increasing presence in soil, groundwater and surface water. Numerous methods are developed ...
    ... morillonite. Also, the intensity of these bands decreases significantly with increasing concentration of HDTMA+ cation. All these changes are related to the decreasing of the water content in the interlayer space by increasing the content of HDTMA. The occurrence of the stretching CH2 vibrations ...

  • Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking

    Ranka Stanković, Milica Ikonić Nešić, Olja Perisic, Mihailo Škorić, Olivera Kitanović (2024)
    U radu se prikazuju rezultati istraživanja vezanih za pripremu paralelnih korpusa, fokusirajući se na transformaciju u RDF grafove koristeći NLP Interchange Format (NIF) za lingvističku anotaciju. Pružamo pregled paralelnog korpusa koji je korišćen u ovom studijskom slučaju, kao i proces označavanja delova govora, lematizacije i prepoznavanja imenovanih entiteta (NER). Zatim opisujemo povezivanje imenovanih entiteta (NEL), konverziju podataka u RDF, i uključivanje NIF anotacija. Proizvedene NIF datoteke su evaluirane kroz istraživanje triplestore-a korišćenjem SPARQL upita. Na kraju, razmatra se povezivanje Linked ...
    paralelni korpusi, povezivanje imenovanih entiteta, prepoznavanje imenovanih entiteta, NER, NEL, povezani podaci, NIF, Vikipodaci

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... educational impact. It is of paramount importance that students involved in the study of a specific domain get acquainted with the proper terminology related to that domain both in their mother tongue, and in other languages. Hence the need to integrate terminological resources in e-format into the e-learning ...
    ... being intensively enlarged and refined. However, it is also already being used, among other things for the production of controlled dictionaries related to planning and management of exploitation, to mine safety protection systems, mining equipement management, human resources management systems ...
    ... knowledge, which includes a vocabulary with a set of concepts, semantic relationships between these concepts, and a simple reasoning mechanism related to a specific domain. Ontology A formal representation of knowledge which includes the vocabulary containing a set of concepts, semantic ...

  • 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
    ... 1. Introduction When delivering a query to a web search engine the user is typically interested in information available on the web related to a particular topic. The result of this query is a selection of web pages the search engine determines as relevant to the query. The information ...
    ... delivered by the search engine. At the first glance, the main problem lies in the fact that the user, when composing a query, might omit some words related to the concept, thus reducing system recall. A simple query expansion by adding the omitted words would seemingly resolve this problem. However ...
    ... is far from systematic. As is often the case with stemmers, Google expands the query by including not only (some) inflective forms but also related words. For example, a Google query with the Serbian word prevodilac ‘translator’ also offers web pages containing the word prevod ‘translation’ ...

  • Application of ERT in the study of debris-flow source area: Case study Selanac debris flow

    Dragana Đurić, Jelka Krušić, Biljana Abolmasov (2021)

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... environments along the tunnel route. The water pressure response enabled aquifer characterization of(1) a thin-layered, low-fissured aquifer closely related to the reservoir, with low influence on WMO transients; (2) a low- fissured, compartment aquifer or non-aquifer with minimal to no influence on WMO ...
    ... 1986). The appearance of cracks is particularly emphasized in highly fractured rock masses, where the number of cracks in the lining is directly related to fracture density (Ponimatkin, 1977). Regarding high-pressure tunnels in solid rock, the critical design emphasis should be placed on the surrounding ...
    ... properties of Water lead to the appearance of a hydraulic transient – WH, in the zone of appearance of the high-pressure part of the tunnel and are related to the surge tank. The surge tank attenuates the pressure amplitude transmitted along the Results The initial conditions consider the pore pressures ...

  • Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts

    Dejan Radivojević (2019)
    Centralni Paratetis, neogen, Panonski basen, Sistem panonskog basena, Panonska oblast
    ... [ДР РГФ] Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts | Dejan Radivojević | GeomorForum 2019, Landforms related to the plains of Serbia and its neighboring area, Beograd, | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005457 Дигитални репозиторијум Рударск ...