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Упит dcterms_subject_txt:query expansion

118 items

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... 1250-1261. 6) Zornberg J.G., Jernigan B.L., Sanglerat T.R., Cooley B.H. (1999): Retention of free liquids in landfills undergoing vertical expansion, Jowmmal of Geotechnical — and Geoenvironmental Engineeringč, ASCE, Vol. 125 (7), 583-594. ...

  • WS4LR - a Worksation for Lexical Resources

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović (2006)
    Lexical Resources, Wordnet, Serbian
    ... segments retrieved, occurrences that correspond to search criteria in the source language are highlighted (Figure 5). Figure 4. The form for expansion of the search criteria The user can also use the translation equivalence option which is aimed at locating equivalences in target language ...

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... pellets have seen high growth rates in consumption, and also in production, in Serbia [7]. From the complete production of wood fuels in Serbia, the expansion of production capacities was largest in the wood pellet segment. Until 2016, over 54 pellet production facilities were actively operating [7]. ...

  • 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
    ... the energy mix of annual production. It remains an indisputable fact that the problems of climate change and CO» emissions have slowed down the expansion of the use of coal as an energy source [1, 4|. Since 2012, total coal power generation has dropped by almost a third in the EU. The declining ...

  • 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
    ... planned infrastructure projects (DRIP). Degree is calculated according to the ratio of the achieved capacity expansion foreseen by the development projection and the total possible capacity expansion foreseen by the realization of all infrastructure projects (Table 21). New interconnections with Bulgaria ...
    ... 40 It is notable that the pessimistic infrastructure development scenario has a very poor economic feasibility assessment due to lack of capacity expansion, although the assumption is that there is no investment in the natural gas sector in this development scenario. This is due to the unjustifiability ...
    ... Bulgaria (daily capacity 4.93 million m3), Croatia (daily capacity 4.1 million m3) and Romania (daily capacity 4.38 million m3), with the expansion of UGS Banatski Dvor capacity to the planned 800 million m3 (daily capacity 9.96 million m3), give the possibility of increasing the daily availability of natural ...

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... the deposit up to the +410m. Above this level, in the southern part, 1,120,000t of ore reserves remained. A feasibility study on the pos- sible expansion of open pit established that open pit mining of this part of the deposit was not economically justi�ed at the mo- REM: R. Esc. Minas, Ouro Preto ...

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela

    Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić (2010)
    ... The results of the conducted hydrogeological survey, measurements and modelling show insignificant depletion of the groundwater table, without expansion tendency for the forecasted period of the next 20 years and for the simulated extraction rates, which should remain the same or it might increase ...
    ... purpose. The results of the conducted hydrogeological survey, measurements and modelling show insignificant depletion of the groundwater table, without expansion tendency for the forecasted period of the next 20 years and for the simulated extraction rates, which should remain the same or it might increase ...

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... inside the cylinder to expand, which reduces the pressure within the pump cylinder. The pressure drop causes the traveling valve to close, and the expansion cycle continues until the pressure falls below the intake pressure. When the intake pressure exceeds the pressure inside the cylinder, the ball ...
    ... drawback of this type of top seating insert pump compared to bottom seating pumps is that the cylinder undergoes significant stretching and expansion stresses, which can lead to increased 19 fluid slippage between the cylinder and the piston, directly reducing the pump's operational efficiency ...

  • Indexing of textual databases based on lexical resources: A case study for Serbian

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2015)
    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 ...
    ... lemmati- zation to produce a bag of words for the query. Finally, the integration of created indexes will enable the realization of a query expansion by adding synonyms from available resources, such as the geologic dictionary [15] for terminological query terms and WordNet for more general terms. Ack ...
    ... search query with the other, while the results are shown in the original script, and that is Cyrillic. Query processing on the server side expands the query by creating a matrix of key words, fields that are searched, and weight factors, and then translates this query into SQL (Structured Query Language) ...
    ... the similarity of the search query vector and the document are determined as follows: 1. the query is analyzed, tokenization is performed (separating into words, where a MWU within quotation marks is treated as one word); 2. for each document and for each word in the query the weight td idf is found; ...

  • Rule-based Automatic Multi-word Term Extraction and Lemmatization

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac (2016)
    In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...
    term extraction, terminology, multi-word units, lemmatization, finite-state transducers
    ... MWUs belonging to general lexica. Expanding the e-dictionaries will further improve systems for information retrieval, information extraction, query expansion and the like. One useful application can also be the creation of bilingual and multilingual terminological dictionaries, which would provide ...

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... 261-263, Serbian Irrigation and Drainage Society, Belgrade, pp 55-68, 2013. 3. Đurić, D., Lukić, V., Soro, A., Hydrodynamic assessment of the Expansion of the Groundwater Source of Petrovaradinska Ada in Novi Sad (in Serbian), Vodoprivreda, 258-260, Serbian Irrigation and Drainage Society, Belgrade ...

  • Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface

    Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)
    Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...
    multiword expression lexicon, corpus, proof-of-concept lexicon encoding

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... reception, changing rooms, office, examination room and café, and an unheated module Mt1 as the mechanical room. Stage 2 (Figure 8b) is conceived as an expansion of Stage 1 with 2 added balneotherapy units Mb5–Mb6, an additional utility module Mu4 and an additional technical module Mt2. The third stage (Figure ...
    ... Visualization of proposed model for wellness and spa facilities. Appl. Sci. 2021, 11, 2691 16 of 24 The modular design also permits capacity expansion beyond the initial plans while retaining original design features or remaining at a reduced number of constructed modules for long periods in case ...

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... and 31,367 synset-lemma pairs to 23,137 synsets and 47,931 synset-lemma pairs. The WN-Toolkit, a set of Python programs for wordnet creation and expansion uses a dictionary, Babelnet and parallel-corpora based strategies. In this paper we present a method to speed up the enrichment of the Serbian WordNet ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... some predefined queries that retrieve a word searched for in a context. This predefined query could replace “Plain lemma” in the drop-down menu. For example, if a lexical entry describes a noun, the predefined query “AN” retrieves occurrences (concordances) in which the word described by an entry follows ...
    ... the auto- matic connecting of lexical entries. In order to accomplish this task, various procedures were developed using different means: relational query language 90 Infotheca Vol. 19, No. 2, December 2019 Scientific paper for managing SQL databases, FST in Unitex, and C# programming lan- guage. ...
    ... important one is the automatic generation of the complex DELAC lemmas from a simple list of their basic forms. After years of working on dictionary expansion, the number of lexical records and categories (semantic and syntactic tags) has increased, as has Infotheca Vol. 19, No. 2, December 2019 85 Lazić ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... aligned crystal structures with slightly different cell parameters (Figuure 6e). The calculated values from the SAED pattern for the oxide layer show expansion in the interplanar distances of 3.5% in (100), 7.5% in (101), and 8.5% in (210) compared to the stoichiometric arsenopyrite structure. Crystals ...

  • Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities

    Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov (2024)
    Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...
    полилексемске језинице, именовани ентитет, вишезначност значења речи, складиште смисла, LLOD

  • Contribution to the geotechnical classification of municipal waste landfills in Serbia

    Dragoslav Rakić, Irena Basarić, Laslo Čaki, Slobodan Ćorić (2018)
    Management, Monitoring, Policy and Law, Nature and Landscape Conservation, Geochemistry and Petrology, Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental Engineering

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology