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449 items
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Some examples of interactions between certain rare earth elements and soil
... saturated separately with 100 ml of lanthanum (III)- ion solution concentration of 50 mg L-1 and neodymium (III)- ion solution concentration of 50 mg L-1 so that their concentration would amount to 500 μg of element per gram of soil. The soil samples and solutions for the saturation were placed in glass ...
... and at the soil surface is more rapidly established. It can be concluded that soil possesses a certain capacity for binding the rare earth elements, so that physically unprotected soil does not present a suitable surface for disposal of electronic waste. Should such waste be disposed on such soil types ...
... Humus soil has demonstrated more intensive sorption properties, therefore these types of extractions are limited on it, namely this method is not so undemanding. The characteristics (composition) of soil, pH value and extraction solution composition Acce pted M anuscr ipt 10 NIKOLOVSKI et al ...Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski. "Some examples of interactions between certain rare earth elements and soil" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC211006095N
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Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering
Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)... m. XRD analysis The XRD analysis showed that the most abundant phases in the PGI and PG2 samples are gypsum (CaSOu:2H5O), brushite (CaHPOu:2H>SO) and quartz (Fig. 3). These phases have also been identified in various phosphogypsum samples by various researchers (Roode & Strydom, 1999; Jalali ...
... H,O > H,POx+OH- equilibrium in the neutral water solution to the left compared to the highly acidic conditions of phosphate rock digestion with H,SO,. (Ca(H.)POu), has 100 times greater solubility than the less acidic CaHPOu·2H»O form.) SEM analysis The SEM analysis revealed a significant increase ...
... of recrystallized phosphogypsum in various industries. For example, in the Serbian cement indus- try, A-grade cements should have WI values >80%, so for gypsum to be used as one of the components of A-grade cements, it must comply with this standard (RS Official Gazette, 2014). Furthermore, chiefly ...Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić. "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, Cambridge University press (2020). https://doi.org/10.1180/clm.2020.11
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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 ...Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos. "Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Production of morphological dictionaries of multi-word units using a multipurpose tool
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion... other languages. This format can be briefly described in the following way: in a dictionary of lemmas (DELAS) every lemma is described in full detail so that a dictionary of forms containing all necessary grammatical information (DELAF) can be generated from it. The dictionary of forms is used in NLP ...
... masculine gender, singular and accusative form of the third token — the noun zvezda — is needed. However, the gender of the noun zvezda is feminine, so this form cannot be produced and the lower paths in the graph will be ignored. They will not be ignored for some other MWUs, like kvadratni metar ...
... gender, nominative case form. Consequently, it can be deduced that only the basic structure adjective/noun applies here. Of course, not all MWUs are so easy to process. For in- stance, for the MWU vojna tajna ‘military secret’ a dictionary look-up offers the following possibilities: vojna vojni ‘military’ ...Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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Развој геолошког терминолошког речника ГеолИССТерм
... the geologic Information System of Serbia has been explained in detail. Software solutions for browsing and searching the dictionary online and the solu- tion for domain control, namely, integration into geolISS are illustrated by screenshots of the interface. The possibilities of exporting the vocabulary ...
... information objects. Thesauruses are above taxonomies in the se- mantic spectrum. They can be defined as vocab- ularies structured in such a way so as to display equivalence, homography, hierarchy and associa- tion relations among terms in a clear manner and allow their easy recognition through ...
... data are taken: geologic, administrative, numerical (in which case there is an allowed range of values), which geologic discipline it belongs to and so on. The role of the class DomainNode is to determine which terms are incorporated into a domain. This is the class where an individual node and the ...Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić. "Развој геолошког терминолошког речника ГеолИССТерм" in INFOteka: časopis za informatiku i bibliotekarstvo, Beograd : Zajednica biblioteka univerziteta u Srbiji (2011)
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Multi-word Expressions for Abusive Speech Detection in Serbian
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 ...... 2008). In order to process implicitly abusive language, we need to take into account the usage of non-literal language, the rhetorical devices that are so often a part of such utterances, as shown in (Caselli et al., 2020; Mitrovic et al., 2020). The Ontology of Rhetorical Figures for Serbian (Mladenović ...
... at the percentages on unique lemmata, 34.5% were non words, 38.8% lemma forms were correct, 26.7% lemmata were wrong, but 6% had wrong POS in total. So, we had a correct lemma with a correct POS assigned in 35.1% of the cases. Statistical overview is given in Table 1. A small set of orthographic corrections ...
... slobode ‘deprive (somebody) of freedom’, expressions with prepositional phrases as complements zabadati nos U NEŠTO ‘pierce one’s nose (into something)’. So far, a number of different structures were described in tables that cover lex- ical variants, e.g. Ekavian od Ijekavian word form (pogaziti reč/riječ ...Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev. "Multi-word Expressions for Abusive Speech Detection in Serbian" in Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons, Association for Computational Linguistics (2020)
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Open Educational Resources in Serbia
... upload of resources and description of either uploaded resources or other courses on the Portal is enabled only for authorised users with teacher role, so those users must have an account. Only users with accounts can use the Portal as teachers. A metadata schema was designed that consists of data ...
... and instruments for the development of digital education content, open educational resources and software solutions”. However, such a Center has so far not been established. While this Law that regulates lower levels of education at least recognizes OERs, there is no mention of them in the Law ...
... and skills while developing or using OERs. Teachers usually develop OERs bearing in mind a specific target group. But, an OER is always “open”, so the content finds another interested target group beside the initially planned. This kind of OERs for specific target groups are sometimes inadequate ...Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević. "Open Educational Resources in Serbia" in Current State of Open Educational Resources in the “Belt and Road” Countries, Springer Singapore (2020). https://doi.org/10.1007/978-981-15-3040-1_10
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An Italian-Serbian Sentence Aligned Parallel Literary Corpus
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 ...Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić. "An Italian-Serbian Sentence Aligned Parallel Literary Corpus" in Review of the National Center for Digitization, Belgrade : Faculty of Mathematics, University of Belgrade (2023). https://doi.org/10.5281/zenodo.11203388
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Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm
Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering... development issues, in which the focus is on the issue of environmental protection [2–12]. Most of these authors are from the European continent and so it is no surprise that the application of SEA in European planning practice and spatial development is given great attention and it is also established ...
... learning); and physiological effect (anxiety, tinnitus, or in the worst case, hearing loss). Problems that have stood out in importance in practice so far relate to the acoustic impact of noise and sleep disturbance to which local populations living near wind farms are exposed [31,32]. Some authors ...
... location of the planned Maestrale Ring wind farm, since it was determined that for 99% of the time, the wind measurement did not exceed 10 m/s and so it was considered relevant for making the most unfavorable scenarios. The results are shown in Figure 2 for the day (and evening) period and in Figure ...Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić. "Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm" in Energies, MDPI AG (2021). https://doi.org/10.3390/en14196174
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... existing facilities. However, in most of developing countries (such as Serbia) wastewater treatment plants are rare, or in the preparation phase, so presented methodologies cannot be applied. Although it is evident that utilization of renewable energy sources has a positive effect in mitigating ...
... alternative energy sources. Quantification of the effects of wastewater heat utilization on security of supply has not been analyzed in the literature so far. Thus, this paper presents a methodology that aims to quantify and determine a range of positive effects that can be achieved with the introduction ...
... water in DH. Higher-temperature difference corresponds to lower values of COP. The heating regime in Serbian district heating systems is 90/70C, so temperature at the exit of the heat pump should be higher than 70 °C. The experience of implementa- tion of large-scale heat pumps in Europe shows that ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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Long-term planning methodology for improving wood biomass utilization
The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković. "Long-term planning methodology for improving wood biomass utilization" in Energy, Elsevier BV (2019). https://doi.org/10.1016/j.energy.2019.03.105
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Serbian Society of Geomorphologists
Dragana Đurić, Jelena Ćalić (2019)Dragana Đurić, Jelena Ćalić. "Serbian Society of Geomorphologists" in GeomorForum 2019: Landforms related to plains of Serbia and its neighboring area, Conference Programme and Abstracts, Beograd, 10-12. maj 2019, Serbian Society of Geomorphologists (2019)
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Terminological and lexical resources used to provide open multilingual educational resources
Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...... goal of NLP tools in education is to automate time- consuming, laborious teachers’ tasks such as curriculum creation or assignment assessment and do so in a timely manner. Time a teacher can spend with a student is usually very limited, with a detriment to students, resulting in insufficient interaction ...
... same time paying attention to terminology rules which regulate the choice of the most appropriate term. Inevitabely, this requires standardisation so more accurate translations are produced. To summarize above mentioned, terminology now constitues a very important field of Natural Language Processing ...Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić. "Terminological and lexical resources used to provide open multilingual educational resources" in The Seventh International Conference on eLearning (eLearning-2016), 29-30 September 2016, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2016)
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Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu. "Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08910-x
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... su Međunarodno udruženje hidrogeologa — Nacionalno odeljenje Srbije, SGD i CHK od 14. do 20. juna 2019. godine. Učesnici konferencije u rudniku soli Ocnele Mari Participants in the salt mine Ocnele Mari Nedelja sa karstom Konferenciju „Nedelja sa karstom“, kao jednu od brojnih aktivnosti u ...
... obuhvata i pokazne vežbe, te je tokom kursa u okviru izvorišta „Bolje Sestre“ izveden i kraći opit trasiranja podzemnih voda korišćenjem kuhinjske soli. CEKA 2018 kurs je započeo kraćim predavanjima u Trebinju, da bi se svi učesnici preselili u Crnu Goru gde su, pored pomenutog izvorišta „Bolje Sestre“ ...
... and witness of the creation and work of the Centre for Karst Hydrogeology at the Department of Hydrogeology of the Faculty of Mining and Geology. So, in front of you is an attempt by a "fan" to remain objective, which can be facilitated to some extent by the fact that he has not been at the helm ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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A bilingual digital library for academic and entrepreneurial knowledge management
A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...... regions, which can improve its rating. More and more international projects in Serbia publish research results bilingually in Serbian and English, so that the initial concept of a library of bilingual journals is extended to a more general collection of bilingual documents. All TEMPUS1 projects ...
... libraries are use of ontologies, lexical and terminological resources. 3.2. Introducing Bibliša We have developed a DL and a web tool, dubbed Bibliša, so that both direct and indirect users, accessing the abundant information from journals published bilingually, can get the most use out of (Stanković ...
... After refinement of a query (e.g. deleting or adding terms manually), the system performs semantic and multilingual query expansion. If the user so specifies, Bibliša forwards this query for further morphological expansion, based on morphological e-dictionaries, the system of rules for multi-word ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić. "A bilingual digital library for academic and entrepreneurial knowledge management" in Proceeding of 10th International Forum on Knowledge Asset Dynamics — IFKAD 2015: Culture, Innovation and Entrepreneurship: connecting the knowledge dots, Bari, Italy, 10-12 June 2015, Bari : IFKAD (2015)
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Resource-based WordNet Augmentation and Enrichment
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 ...... equivalent was offered. Similarly, 6540 (32%) of synsets had two literals, and 1341 (21%) of them had the expected Serbian equivalent offered, and so on. Figure 1: Number of synsets with and without expected corresponding equivalents We found the results of this experiment encouraging, which motivated ...
... adjusted PWN synsets were presented to experts, specialist for specific domains. Their task was to adjust the 1418 PWN synsets (categories) from the so called Base Concepts Set (BCS) that had no equivalents in SerWN. In addition to that, smaller sets of PWN synsets, for which corresponding terms in ...
... Domains resources and generates the appropriate links. 4. Initial results As the application of the procedure we have developed is a work in progress so far we can report the initial results for 1248 synsets. Results show that in the set of 1248 produced Serbian synsets having a total of 4024 literals ...Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev. "Resource-based WordNet Augmentation and Enrichment" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018)
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Serbian NER&Beyond: The Archaic and the Modern Intertwinned
U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...... similar texts. It was manually evaluated on a sample of unseen newspaper texts. The overall F1 score of the model was ≈ 96%. To the best of our knowledge, so far there were no attempts to produce a NER system for Serbian literary texts. The enhanced version of SrpNER was la- ter utilized by Šandrih et al ...
... retained only the possibility appropriate to the particular novel). The EVENT named entity is somewhat spe- cial: SrpNER does not recognize this entity, so the evaluators were asked to identify and anno- tate them when they occur in text. SrpNER does not recognize WORK entity either, but these annotations ...
... were rather small. 5.3 Discussion Based on the results shown in Figure 3 (upper part) and Table 5, it becomes obvious that SrpCNNER does not perform so well on un- seen texts. In order to understand the reasons for that, we observed each and single case in isolation, which brought us to certain findings ...Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić. "Serbian NER&Beyond: The Archaic and the Modern Intertwinned" in Proceedings of the Conference Recent Advances in Natural Language Processing - Deep Learning for Natural Language Processing Methods and Applications, INCOMA Ltd. Shoumen, BULGARIA (2021). https://doi.org/10.26615/978-954-452-072-4_141
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Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata
... CAD software. In the case of raster data, there are also possibilities for import of various formats, as well as for grouping of raster data in the so-called raster datasets or raster catalogues. Another way of creating a database is the design of a new spatial database using the tools from the ArcCatalog ...
... used for manipulating data on boreholes. The left side shows attributes of the spatial class, whereas the right side shows characteristic parts of the so- called attribute objects related to the selected borehole. These objects are used for entering interval trials with data on sample analyses, observed ...Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović. "Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata" in Podzemni radovi, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2012)