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Упит dcterms_subject_txt:definition of criteria

2845 items

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... es for searching and browsing of terminological resources and using them for text annotation. The contents of these resources conform to the methodic/didactic quality criteria and contain very rich metadata sets that enable adaptive usage. The importance of terminological resources supporting ...
    ... KNOWLEDGE IVAN OBRADOVIĆ University of Belgrade, Faculty of Mining and Geology, ivan.obradovic@rgf.bg.ac.rs RANKA STANKOVIĆ University of Belgrade, Faculty of Mining and Geology, ranka.stankovic@rgf.bg.ac.rs JELENA PRODANOVIĆ University of Belgrade, Faculty of Mining and Geology, jelena.prodanovic@rgf ...
    ... segments of knowledge. The BAEKTEL language support system consists of several software components handling simultaneously several types of language resources: grammars, lexical and textual resources (Fig 2). One of the basic lexical resources is the system of morphological dictionaries of Serbian ...

  • Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete

    Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)
    sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija
    ... and environmental criteria. This paper is a continuation of that research. After the characterization of waste slag and finding ways for its potential application in the construction industry, it was important to investigate mortars and concretes in which the partial replacement of cement with waste ...
    ... in the length of the tested sample, while the shrinkage of cement mortar was expressed as a ratio of variation in length and the initial length of the specimen at the start of testing. The difference in readings represented the variation in length of the tested sample, while shrinkage of the cement mortar ...
    ... results showed that the lack of slag in terms of the content of SiO2, Al2O3, Fe2O3, and unburned carbon, and the loss of ignition, may be overcome by the thermal treatment of the slag prior to use, up to 650 ◦C. Results also showed that other physical– chemical characteristics of slag (crystal, structural ...

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • 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 ...
    ... Fig. 3 permits an aerodynamic definition of mine venti- lation network based on psychrometric recordings and the use of ResNet, an appro- priate software package. The actual aerodynamic resistance of mine workings are established and consequently, the configuration of the basic network. In this process ...
    ... analyses of a concrete ventilation system. Figure 4 illustrates the ResNet software package through its interface forms. The outlined software permits an aero- dynamic definition of mine ventilation network based on barometric method, i.e. the establishment of actual aerodynamic resistance of mine workings ...
    ... ited possibilities for the testing of different modifications of the system until a final solution is reached, which will satisfy all the criteria that were set. 3. Software Implementation of INVENTS INVENTS, the hybrid intelligent system for planning and analysis of mine ventila- tion and its components: ...

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... ture at depth is constructed only from surface kinematic projections by following the definition of the main tectonic units and the observed lateral variability of stratigraphy. Therefore, the degree of uncertainty of these cross-sections increases with depth. 4.1. Connecting the Cerna and Timok s ...
    ... derive the sense of shear along faults and fault zones by considering confidence criteria and quality ranks (e.g., Angelier, 1994; Doblas, 1998; Sperner and Zweigel, 2010). The fault-slip data was separated by superposition, timing criteria and consistency of slip direction and sense of slip. Data collected ...
    ... (2022) 103714 3 Carpatho-Balkanides orocline of south-eastern Europe. This double 180◦ curved orogenic system is comprised of a foreland-convex segment in the north and east, and a backarc-convex segment in the south and west (Fig. 1a). In our definition, a foreland-convex orocline has the convex ...

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...
    korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd
    ... compaction and bearing capacity of natural materials are the most important indicators that must be satisfied during the construction of the foundation layers of pavements. Control procedures are used to ensure the quality of construction, in accordance with the criteria defined by certain design regulations ...
    ... testing of the CBR+p, modulus of deformation (E,, —E,), and dynamic modulus of deformation (Ey„). The objective of regression analysis was to determine the parameters in the least-square error models, which are used to predict the conventional parameters of compaction and the bearing capacity of the ...
    ... (9) The modulus of deformation values, E,„ and E,,, were obtained without major deviations within the range of approximately 535-75 MN/m. As can be seen, the values of the modulus of deformation E,, are with- in the wide range of 90-200 MN/m?, which indicates the diversity of the material's local ...

  • 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
    ... Currently, there are 26 large- scale CCS facilities in operation, with capture capacity of 40 Mt of CO2 per year [5]. In spite of the growing number of CCS facilities, CCS application is still small because of the high capital and operating costs for capturing CO2 [3]. There are four main approaches ...
    ... and SO2. The main advantage of oxy-fuel combustion is very high concentration of CO2 in output stream, which is about 80-98% in dependance of used fuel [4,11]. The major disadvantage of this process is very high capital cost and the energy penalty due to large amount of fuel required to separate oxygen ...
    ... increase with the increase of pressure and decrease of temperature. This procedure has many applications such as: in natural gas processing, in separation of CO2 from synthesis gas which is used in the production of hydrogen, ammonia, and methanol [21-22]. There are a number of physical absorption processes ...

  • Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije

    Jelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar (2023)
    Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...
    mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacija

  • Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji

    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
    U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...
    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija

  • An Approach to Efficient Processing of Multi-Word Units

    Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas (2013)
    Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...
    Natural Language Processing, Grammatical Category, Lexical Representation, MWU, multi-word unit
    ... The users can check the correctness of every lemma with the function ‘Inflect’ that lists all in- flected forms of a selected lemma. Another useful function is the extraction of sub- sets of lemmas based on different criteria: lemmas’ beginning, their part of speech (PoS), inflectional class code ...
    ... bination of these criteria. Figure 3 shows the table for manual production of a DELAC entry having two constituents: petokraka and zvezda. A user can insert constituents of a MWU in the column ‘Form’ of the table. In the next step columns ‘Lemma’, ‘FST’ (PoS and in- flectional codes of constituents) ...
    ... functionality of LeXimir. In this paper we present our approach, and offer an eval- uation of the performance of the new functionality of LeXimir, and hence of our procedure, obtained through two rounds of experiments on various types of data. The paper ends with a brief discussion of some further ...

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis

    Ljiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua (2021)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... we have developed an electronic dictionary of basic GIS terms. Besides the English and the Serbian term, each dictionary entry contains a short definition of the term in both languages, but without any relations between equivalents. An example of a dictionary entry, in English, and then in ...
    ... in blocks by the course creator, in one of the several available formats, such as the weekly format or the topics format. Moodle also has a developed set of grading tools enabling teachers to assign scores to activities based on different criteria, and monitor student activity and performance ...
    ... registered users only is implemented. The Moodle platform offers support for several different authentication systems, such as:  Manual definition of accounts,  CAS (Central Authentication Store) server authentication,  External user databases,  FirstClass server authentication,  ...

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    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 ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... system will work during a selected period of time [1]. Availability is a measure of the state of the system in terms of its efficiency to start operation and to obtain outputs in the required range. The required range is set as the function of the criteria, for a given time and in given surrounding ...
    ... item will be in an operable and committable state at the start of a mission when the mission is called for at a random time and is generally defined as uptime divided by total time (uptime plus downtime) [5,6]. However, this definition does not provide complete information about availability. The ...
    ... Liebherr in terms of R, with grades "good" in extent of 40% and “average” in extent of 60%; M as "average" in extent of 100% and S as "adequate" in extent of 100%; machine Dressta as "average" in all terms and Caterpillar as "good" in terms of R and S and "excellent" in term of M. This can be written ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... perform a faceted search using additional criteria. These criteria restrict 1 http://geoliss.mre.gov.rs; search of fund documentation http://geoliss.mre.gov.rs/ index.php?page=fodib. 2 Actually, almost 9,000 geological projects were financed in this period, but some of them were lost, some are not open to ...
    ... Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as ...
    ... 1 Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia {ranka,ivan.obradovic,olivera.kitanovic}@rgf.bg.ac.rs 2 Faculty of Philology, University of Belgrade, Belgrade, Serbia cvetana@matf.bg.ac.rs Abstract. Large collections of textual documents represent an example of big data that ...

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... represents approxi- mately 5% of total inflation (SORS, 2024b). Inflation, measured by CPI, reflects the general increase in the prices of goods and services over time, typically within a year. By definition, inflation growth reduces the purchasing power of the population. In this case study ...
    ... Franki, V., Višković, A., 2021. Multi-criteria decision support: a case study of Southeast 'Europe power systems. Util. Pol. 73, 101286. https://doi.org/10.1016/j. jup.2021.101286. Gajić, G., Mitrović, M., Pavlović, P., 2018. Chapter 4 - ecorestoration of fly ash deposits by native plant species ...
    ... Understanding the dynamics of key economic indicators at the na- tional level and the key characteristics of the electricity sector is crucial for assessing the impacts of the ETS on the expenditure side of GDP in a specific economy. A comprehensive analysis of the state of the Serbian economy and ...