Претрага

Упит dcterms_subject_txt:Sustainability and the Environment

2600 items

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... that should be used carefully. Upon completion, the user will receive a message about successfull completion. If the user wants to manually review the newly created database, and does not feel comfortable in an XML environment, he can export it into CSV (comma separated values) format that can be viewed ...
    ... attitude, replacing facial expressions and/or intonation in the written text. The intensity values of a determiner directly affects the intensity value which he transfer onto the term. Also, the closer the determiner is to the term, the more its value affects the value of the term. 70 Infotheca Vol. 17, No ...
    ... Example: A: I missed the bus B: :( Determiner :( from the message of person B will refer to the message of person A, becouse the second message does not contain text, and its determiner must refer to previous message. 3. if the message contains both the determiner and the text, and the following message ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... pyrolytic methods are also widely used for estimation of the origin, type/quality, depositional environment, maturity, and hydrocarbon generation potential of sedimentary organic matter (OM) in the oil shale, coal, and source rocks [27–31]. In the last 15 years, much attention has been given to thermal ...
    ... 25. Tissot, B.P.; Welte, D.H. Petroleum Formation and Occurrence, 2nd ed.; Springer: Heidelberg, Germany, 1984; pp. 151–159. 26. Peters, K.E.; Walters, C.C.; Moldowan, J.M. The Biomarker Guide, Volume 1: Biomarkers and Isotopes in the Environment and Human History; Cambridge University Press: Cambridge ...
    ... whereas released gases could not be collected. The sample (1 g) was situated in the quartz vessel and the vessel with the sample was transferred into the pyrolysis furnace in the middle of the quartz tube. After cooling the pyrolytic system over night, the quartz tube was rinsed with chlo- roform (HPLC ...

  • Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta

    Vesna Cvetkov (2020)
    ... 2006. Magnetic suscep- tibility of the soil and its significance in soil science-a review. European Journal of Soil Science 28, 2: 223-246. Mušič, B. 1999. Geophysical prospe- cting in Slovenia: an overview with some observatons related to the natu- ral environment. Arheološki vestnik 50: 349-405 ...
    ... Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 14 ZNAČAJ ...
    ... T., Holley, G., Michlo- vic, M. 2001. The Measurement and Analysis of Depth in Archaeological Geophysics: Tests at the Biesterfeldt Site, USA. Archaeological Prospection 18, 4: 245-265. Desvignes. G., Tabbagh, A., Bene- ch. C. 1999. The determination of the depth of magnetic anomaly sources. A ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... (Figures 6 and 9). Chrysotile (white asbestos) consists of long, flexible fibers, the best quality from the point of view considering the fiber's mechanical properties (the smaller the fiber diameter, the higher the radius of curvature) and the tolerance of the fiber to folding; the fiber quality ...
    ... observed perpendicular to the section of the pottery. This is consistent with a shaping, on a potter's wheel, which orients the bundles of fibers by the turning: movement and pressure of the hands. The diameters of the individual fibers range between about 100 nm and 1 hm, and the length can reach a few ...
    ... d. The bands, for instance, the Si-O stretching, and bending, modes at ~960 (1015 and 1080) and 620 cm-! (Figure 3), are characteristic of asbestos and similar compounds (amphiboles and pyroxenes) [14-21]. From this first analysis, it can be seen that the samples b and d on the one hand and the ...

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

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

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... important fuel in the generation of electricity, accounting for 65% of the power pro- duced in Serbia [2]. In the past, because of the regulated business environment in which utilities operated, coal was viewed as a necessary evil and was always treated as a “pass through” cost. Although the quality of coal ...
    ... proportions, in the same stockpile, then reclaiming across the full face. In any blending pile the attenuation on vari- ability depends on the equipment used and the way coal is stocked and reclaimed [6]. The main factors influencing blending efficiency are the pile size or its mass and the number of layers ...
    ... from the point that inter- sects the sides of the polygon. If the number of intersections is even, then the value of the func- tion is 0, and if it is odd, the value of the function is 1. By plugging this function in the general formula for Monte Carlo integration, one can approximate the area of ...

  • Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes

    Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)
    Earth-Surface Processes

  • Using Lexical Resources for Irony and Sarcasm Classification

    Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković (2017)
    The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...
    ... e 288, hyponym 20,709. 9We used the following software tools in this paper: Developing tool Eclipse Java EE IDE Luna and Apache Jena open source software development environment which allows for reasoning at the level of OWL 2 language by converting OWL rules into the Jena rules format. "[rule5: (?a ...
    ... Irony and Sarcasm Classification Figure 2: Verb synsets in the SWN ontology mutually connected with relations that participate in finding a broader set of synonyms and separated by the antonymy relation. from RDF triples (?a swn:irony ?z), where a is the first and z is the last member of the observed ...
    ... prvi_A na_PREP tabeli_N 12 5 EVALUATION 5.1 The classifier of irony Annotation of each tweet was twofold: the annotators were asked to decide whether the language of the tweet was recognized and whether the tweet represents an ironic statement.13 The results of the language tagging were used to estimate a ...

  • Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa

    Mirjana V. Banković (2018-07-13)
    Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...
    tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta
    ... economic constraints. In order to achieve the basic goal, that is, the profitability and sustainability of the mining project in the long run, it is necessary to improve the mathematical models and IT support to the processes of planning and optimization that will enable efficient realization of these goals ...
    ... International Journal of Surface Mining, Reclamation and Environment, 13 (3), 97-101. Baucom, J., 2011, The Evolution of Mining Trucks is Changing Interactions and Productivity at Minesites. Pincock, Allen and Holt, a division of Runge Inc. Baumann, S., 1999, Review your assets to determine maximum fleet ...
    ... Bell, F. G., Donnelly, L. J., 2006, Mining and its Impact on the Environment, CRC Press. Benndorf, J., 2011, Investigating the variability of key coal quality parameters in continuous mining operations when using stockpiles. Advances in Orebody Modelling and Strategic Mine Planning I. AusIMM. Benndorf ...

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... research environment. However, the results obtained are still far from the level of development reached for developed European languages. e at- tention of researchers is also drawn to multimedia and multimodal documents, especially in the con- text of the digitisation of cultural heritage. Given the complexity ...
    ... so far on the development of resources and tools that comply with the specific features of Serbian (in the first place a description of its rich morphology). is line of development should by all means be fol- lowed in the future. For a rather modest language community and research environment such as ...
    ... Challenges include the adaptability of the language resources to a given sub- ject domain or user area and the integration into existing workflows with term bases and translation memories. Evaluation campaigns help compare the quality of MT systems, the different approaches and the status of the systems for ...

  • Influence on Environment of Sealing Screen at Lignite Opencast Mines

    Šubaranović Tomislav, Pavlović Vladimir, Polomčić Dušan, Malbašić V (2013)

  • 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

  • Titanium oxyde-Materials for greener environment - Оксиди титана-Материјали за здравију животну средину

    Veljković Ivana, Poleti Dejan, Karanović Ljiljana, Simičić Miloš, Zdujić Miodrag, Jovalekić Čedomir (2010)

  • Local people's attitudes towards quality of environment in municipality of Bogatić

    Bartula Mirjana, Ristić-Vakanjac Vesna, Vakanjac Boris, Ninkovic Milos (2014)

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. Regarding more efficient solution of the paraffin deposition problems, it has ...
    ... Petroleum Science and Engineering, Volume 59, Issues 1–2, 84-96. Reza M.S., Juan L.J., Pathmanathan I., (2008) case study in the successful design and implementation of frac-pack treatment sinachallenging workover environment in Malaysia. SPE116913, SPE Asia Pacific Oil&Gas Conference and Exhibition ...
    ... achieving the optimum oil production. The model consists of two major parts; the first one dealing with the solution of the production problems, and the second one dealing with the determination of optimum parameters for Gas Lift Operations. The originality of the model reflects in the fact that ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. Regarding more efficient solution of the paraffin deposition problems, it has ...
    ... Petroleum Science and Engineering, Volume 59, Issues 1–2, 84-96. Reza M.S., Juan L.J., Pathmanathan I., (2008) case study in the successful design and implementation of frac-pack treatment sinachallenging workover environment in Malaysia. SPE116913, SPE Asia Pacific Oil&Gas Conference and Exhibition ...
    ... achieving the optimum oil production. The model consists of two major parts; the first one dealing with the solution of the production problems, and the second one dealing with the determination of optimum parameters for Gas Lift Operations. The originality of the model reflects in the fact that ...

  • Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji

    Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović (2016)
    ... of Republic Environment Protection Agency (SEPA) 4/Regional monitoring networks of public enterprises „Djerdap“ and „Vode Vojvodine“ 5/Data derived from the study „Research, optimal use and sustainable management of GW resources in RS“: a).processed groundwater resources b/“Hydrogeological Map ...
    ... RHMS and 213 will be the active GW sources. GW chemical pressure is assessed according to the GW Pollution Risk Map by diffuse pollutants. In total, 130 points is included in the GW quality monitoring network, 21 of which are from the current SEPA network. Projected concept includes also the fol ...
    ... Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs UDK: 551 ...