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992 items
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Available technological procedures for capturing CO2 in the industrial and power generation sectors
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 ...... ained/carbon-capture/ http://dx.doi.org/10.1155/2014/828131 https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon ...
... of partial pressures of gas components along the membrane is a driving force of its movement through the membrane. Specially designed membrane materials allow the selective permeation [6, 11,29], and this separation works on the principle that some gases are more soluble and pass through the membrane ...
... process conditions [21,29]. Increased concentration of CO2 in the mixture increases the separation efficiency [11]. Different types of membrane materials such as polymeric, ceramic, zeolite, carbon or metallic influence on selectivity and permeability of the membrane [21,29]. A very important cha ...Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac. "Available technological procedures for capturing CO2 in the industrial and power generation sectors" in 8th International Conference Mining and Environmental Protection, 22 – 25th September 2021, Serbia, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2021)
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Terminology Acquisition and Description Using Lexical Resources and Local Grammars
Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...... proposed lemmas were grammatically correct and 2) whether MWU terms belong to domain terminology, in this case library and in- formation science, or to the general lexica. For candidate ranking three measures were used: frequency, C-Value (Franzi et al., 2000) and log-likelihood (Dunning, 1993; ...
... MWEs (Baldwin & Kim, 2010; Frantzi et al., 2000). An analysis of terms from technical dictionaries for different domains (fiber optics, medicine, physics and mathematics, psy- chology) showed that 97% of multi-words in these sources consist of nouns and adjectives only, and more than 99% consist only ...
... for all evaluated term candidates for grammatical correctness. In order to calculate the log-likelihood meas- ure we used an excerpt from the general Corpus of Contemporary Serbian 7 that consists of 22 million simple word forms. Figure 7 presents the precision at rank n for 690 evaluated term ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić. "Terminology Acquisition and Description Using Lexical Resources and Local Grammars" in Proceedings of the 11th Conference on Terminology and Artificial Intelligence, Granada, Spain, 2015, Granada : LexiCon (Universidad de Granada) (2015)
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A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian
Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...... of hate speech as described in [42]; 3) Classifiers trained on corpora containing general abusive speech, can be used to classify a domain hate speech corpus, while domain-specific classifiers perform poorly on the general data set and corpora from other hate speech domains ([46, 29]); therefore, instead ...
... influenced by the domain of the conversation, the context of the discourse, the objects that accompany the conversation (images, video, and audio materials), the time of publication and ongoing world events and the recipient of the message [38]. Given the huge amount of online material that is created ...
... In the course of this work, we leveraged existing annotation schemes and abusive term definitions as much as possible with the aim of creating a general data set convenient for the detection of a broad range of abusive topics. We already used this resource for the detection of abusive triggers and the ...Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih. "A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian" in 3rd Conference on Language, Data and Knowledge (LDK 2021), MDPI AG (2021). https://doi.org/10.4230/OASIcs.LDK.2021.13
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Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules
The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analizaSvetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón . "Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules" in Bulletin of Engineering Geology and the Environment , Springer (2024). https://doi.org/10.1007/s10064-024-03667-0
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The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines
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... growing number of documents on the web, the formulation of queries that are submitted to web search engines has become an increasingly sensitive matter. Queries often need to be ‘fine tuned’ in order to obtain an optimal balance between recall and precision. Lexical resources can be put to the ...
... seemingly resolve this problem. However, the expansion of the set of words describing a concept in a query, although contributing to the recall in general, has and adverse effect. Namely, due to the fact that many words are homonymous or polysemous, adding new words to the query might reduce precision ...
... nedelja ‘horrible week’ or ‘horrible Sunday’ are obtained as well. 2. Typical problems when retrieving documents using a web search engine 1. In general, when the concept the query relates to is lexicalized by one or more multi-word terms in a highly inflective language, the search engines are faced ...Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan. "The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines" in LREC 2008: Conference on Language Resources and Evaluation, Marrakesh, Morocco, May 2008, European Language Resources Association (ELRA) (2008)
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Synchronization of the minimal models of bursting neurons coupled by delayed chemical or electrical synapses
Vasović Nebojša, Burić Nikola, Todorović Kristina, Grozdanović Ines. "Synchronization of the minimal models of bursting neurons coupled by delayed chemical or electrical synapses" in Chinese Physics B 21 no. 1, Kina:Chinese Physics B (2012): 1-8
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Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia
... Meeting / 3rd Symposium Clays & Ceramics 2021. Book of Abstracts. The Latvian Clay Science Society. 2021, 49 pages Scientific Committee Reiner Dohrmann AIPEA Jon Fossum Norwegian University of Science and Technology Steve Hillier The James Hutton Institute Kalle Kirsimäe ...
... and actively coexist until today. This also brings a rise in imitations of pottery manufacture. The village of Zlakusa lacks proper materials, thus the raw clay originates from the nearby village of Dobrodo [1]. All the investigated pots were made from clay body prepared with raw clay ...
... traditional hand clay pottery making in Zlakusa, Serbia. Acknowledgements: The present study has been supported by the Ministry of Education, Science and Technological Development, Serbia References : [1] Milošević M., Dabić P., Kovač S., Kaluđerović L. & Logar M. (2019) Mineralogical study ...Maja Milošević, Mihovil Logar, Biljana Đorđević. "Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia" in Nordic Clay Meeting/3rd Symposium Clays & Ceramics 2021, The Latvian Clay Science Society (2021)
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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... onal low-cost activated carbons derived from renewable and inexpensive materials such as naturally abundant biomass, saccharides, agricultural and industrial wastes have been examined by different researchers [36–39]. In general, for potential practical application of the material for pollutants removal ...
... followed by high levels of potentially hazardous materials which may have negative influence on the environment as well as human or animal health. In countries with a good economy, strict rules and laws have caused high control of the level of waste materials being released into the environment, and consequently ...
... followed by high levels of potentially hazardous materials which may have negative influence on the environment as well as human or animal health. In countries with a good economy, strict rules and laws have caused high control of the level of waste materials being released into the environment, and consequently ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
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Influence of size/crystallinity effects on the cation ordering and magnetism of alpha-lithium ferrite nanoparticles
Jović Nataša, Prekajski Marija, Kremenović Aleksandar, Jancar Bostjan, Kahlenberg Volker, Antić Bratislav (2012)Jović Nataša, Prekajski Marija, Kremenović Aleksandar, Jancar Bostjan, Kahlenberg Volker, Antić Bratislav. "Influence of size/crystallinity effects on the cation ordering and magnetism of alpha-lithium ferrite nanoparticles" in Journal of Applied Physics 3 no. 111, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Institute Physics (2012). https://doi.org/10.1063/1.3684554
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Magnetization enhancement in nanostructured random type MgFe 2O4 spinel prepared by soft mechanochemical route
Antić Bratislav, Jović Nataša, Pavlović Miodrag B., Kremenović Aleksandar, Manojlović Dragan, Vučinić-Vasić Milica, Nikolić Aleksandar S. (2010)Antić Bratislav, Jović Nataša, Pavlović Miodrag B., Kremenović Aleksandar, Manojlović Dragan, Vučinić-Vasić Milica, Nikolić Aleksandar S.. "Magnetization enhancement in nanostructured random type MgFe 2O4 spinel prepared by soft mechanochemical route" in Journal of Applied Physics 4 no. 107, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Institute Physics (2010). https://doi.org/10.1063/1.3319563
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Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe) 3-deltaO 4 nanoparticles
Antić Bratislav, Kremenović Aleksandar, Jović Nataša, Pavlović Miodrag B., Jovalekić Čedomir, Nikolić Aleksandar S., Goya Gerardo F, Weidenthaler Claudia (2012)Antić Bratislav, Kremenović Aleksandar, Jović Nataša, Pavlović Miodrag B., Jovalekić Čedomir, Nikolić Aleksandar S., Goya Gerardo F, Weidenthaler Claudia. "Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe) 3-deltaO 4 nanoparticles" in Journal of Applied Physics 7 no. 111, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA:American Institute Physics (2012). https://doi.org/10.1063/1.3700228
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NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands
Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić. "NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands" in Inorganica Chimica Acta, Elsevier BV (2012). https://doi.org/10.1016/j.ica.2012.09.016
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Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting
Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović. "Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting" in The 55th International October Conference on Mining and Metallurgy, Mining and Metallurgy Institute Bor (2024). https://doi.org/10.5937/IOC24077M
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Applicability of calculated vitrininte reflectance for maturity assessment of organic matter of source rocks from hyperthermal basin (Banat Depression, Serbia)
Stojanović Ksenija, Kostić Aleksandar, Mrkić Sanja. "Applicability of calculated vitrininte reflectance for maturity assessment of organic matter of source rocks from hyperthermal basin (Banat Depression, Serbia)" in Proceedings, 8th International Conference “Oil and Gas Chemistry”, September 24-28, 2012, Tomsk, Russia: (2012): 116-119
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Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock’s Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia).
Stojadinović Sanja, Kostić Aleksandar, Nytoft Hans Peter, Stojanović Ksenija. "Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock’s Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia)." in Petroleum Chemistry Enginee no. 55, Moscow, Russia:MAIK Nauka/Interperiodica and Springer (2015): 444-454
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The thermal maturity of the organic matter in sedimentary rocks in the area of East Herzegovina (Bosnia and Herzegovina)
Nikoleta Aleksić, Aleksandar Kostić (2022)Nikoleta Aleksić, Aleksandar Kostić. "The thermal maturity of the organic matter in sedimentary rocks in the area of East Herzegovina (Bosnia and Herzegovina)" in XXII International Congress of the Carpathian-Balkan Geological Association (CBGA), Bulgarian Academy of Sciences (2022)
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Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia
Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović. "Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia" in CATENA, Elsevier BV (2020). https://doi.org/10.1016/j.catena.2020.104914
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Dispersion Modeling of Particulate Matter in Surface Lead and Zinc Mine Šuplja Stijena
Nikola Lilić, Vladimir Milisavljević, Uroš Pantelić, Ljiljana Kolonja, Dragan Medenica. "Dispersion Modeling of Particulate Matter in Surface Lead and Zinc Mine Šuplja Stijena" in Mining and Environmental Protection, 5th International Symposium, Beograd:Rudarsko-geološki fakultet, Center for Environmental Engineering (2015): 366-375
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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
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... deformation modulus, and dynamic deformation modulus values obtained by field tests. Introduction The 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 ...
... extremely underrepresented in the literature, probably owing to the low preva- lence of this method worldwide. The first CBR, study considered mineral materials for roads [1] and report- ed good correlation between static and dynamic test results. A previous CBR, study [2] has presented re- sults for ...
... of results obtained under different conditions, and the dependence between the parameters can be consid- ered to evaluate the suitability of materials and the compaction and load capacity in road construction. In the present study, this device was used for measurements in the laboratory and at ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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Thermal evolution of the organic matter and oil generation in the Serbian part of the Pannonian Basin.
Stojanović Ksenija, Kostić Aleksandar, Nytoft Hans Peter, Stojadinović Sanja. "Thermal evolution of the organic matter and oil generation in the Serbian part of the Pannonian Basin." in 9th International Conference “Oil and Gas Chemistry”, Tomsk, Russia, September 22-25, 2015., Tomsk, Russia:IOA of the Siberian Branch of the Russian Academy of Sciences and Institute of Petroleum Chemistry, Russian Academy of Sciences, Tomsk. (2015): 116-121