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932 items
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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... have read and agreed to the published version of the manuscript. Funding: This research received no external funding. Data Availability Statement: The study do not report any data. Acknowledgments: This work was supported by the Ministry of Education, Science and Techno- logical Development of the ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "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" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља
Бојан Земљак (2024)Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...... ] [88]. Behchoko @snare Hidro Dam — • Blugfish i | Yellowknife Žv“ H\dr0{Dam - |___Dettah N'Dilo kutsel'Ke ——— Nechalacho Rare EFarth Ming Šg.;tolmion N , ” Potential HayRiver , — Hydro Line KatPodeeche ' o 10O0km / =- = = f ( : } Taltson Hydro Dam Cauka 16. Ipukas npojekma JoHoy ...
... IIpoQ. /Ip. Heuuu Pucmoauhy koju u je owoeyhuo da OyOeM OQeo oso2 npojekma, makKole Oux oOrcenmeo Oa ce 3ax6aluM HayuHOM ucmpaotcusauy Enunuju HIHupaoosuli koja u je npyoicuna cee cageme u noMoli oko u3paoe o6oe OunnoMckKoe paoa. Ha kpajy 6ux oiceneo da ce 3axeanuw ojoj nopooOuuu u Oeeojuu Mapuju ...
... Boersma, Johnson, Kemp, VanDeveer, 2014.} [99]. Opa aycrpanujcKa nponeHa pecypca HCKJbyuyje TOMMJNy jJaJOBHHc OjmMIMHJCKe OpaHe (eprm. Olympic Dam) koja Moxe OHTH a3HauajaH H3BOp ecJIeMeHaTa peTKHX 3cMaJba H3 rpyne JaKHX eHMeMcHaTa Ca BECOMAa HHCKHM Ca/llpx;kajeM |Lusty, Walters, 2010. ; Balaram ...Бојан Земљак. Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља, 2024
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FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... organic modification ofthe montmorillonite with the PTMA complex, stretching vibrations of the phenyl ring occurred. Analysis of FTIR spectroscopy data showed that the hydrogen bond is one of the most important mechanisms that occur between Na-montmorillonite and S-metolachlor. Comparing the FTIR ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
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Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes
Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić. "Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes" in XIII Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, University in Banjaluka, Faculty of Technology (2020)
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Утицај промене нивоа подземне воде за услове плитког фундирања у крупнозрном тлу
Милана Мичета (2024)Подземне воде представљају изузетно важан природни ресурс, као и важну компоненту система, којим је представљено тло. У складу са тим, приликом пројектовања плитких темеља на крупнозрном тлу, односно приликом анализе граничне носивости и слегања, треба узети у обзир и утицај воде. Верује се да ниво подземне воде значајно смањује носивост тла, док се слегања значајно повећавају. Terzaghi (1943) је први сугерисао да се потапањем масе тла, његова носивост смањује за половину, док се слегање удвостручује. Циљ овог рада је ...... TIpHCTJTI 3. Ta0ena 4 - 3 npopauyucka npucmyna 3a npo6epy omnopHocmu npeMa Eurocode-y” npopauyHcKu npucrynn KoM0OuHamuja DA-I Al+MI+R1 A2+M2+R2 DA-2 A1+M1+R2 DA-3 (A1* azmm A2*)+M2+R3 IIapruijannu (bakropH curypHocTH 3a HipojeKTHH rpucTyr 3 cy npHkKa3aHH y Ta0emn 5. Ta6ena 5 - Ilapuyujannu ...
... aaaaaaaaaaataacek 9 3.1.1. Merojna Terzaghi........caaaaaaaaaaaaaa a aaaddaataaaakate 10 3.1.2. Merojra Brinch-Hansen ...........aaaaaaaaaaaaaaa da aaaaadNtoı 14 3.1.3. Merojna Meyerhof.....aaaaaaaaaaaa a aaaaaaedeaaaaakate 17 3.1.4. Eurocode 7 (HC7) ... aaaaaaaaaaaaaaaaaakakete 19 3.2. Vruamaj ...
... MunaHa Muuera, [615/21 36 3ABPILHIHH PAJI PyJIAPCKO-TEOJIOI(IKH ĐDAKVJITET z! - nyOHHa yrHiaja IIpoMeHe HanmoHa H - ne0JbuHa coja KOjH Ce CJIOOKC Da – arMocQbepcku rnpHrHcaK , 0.75 Š_ = 144· (BŽ) (4.1.4.5) R R Ako ce pajui o (bHHOM H rIpanmiHacTOM HecKy ca Nao > 15, Neo je norpeoHo nonecHTH ...Милана Мичета. Утицај промене нивоа подземне воде за услове плитког фундирања у крупнозрном тлу, 2024
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Development of Open Educational Resources (OER) for Natural Language Processing
In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...... utterances, as well as enabling various forms of human-machine interaction. It becomes very important in view of the rising amount of texts and data on the web. The term NLP is also used to describe the function of software or hardware components in a computer system which analyze or synthesize ...Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević. "Development of Open Educational Resources (OER) for Natural Language Processing" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations
Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina. "BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations" in 17th International Conference of the open and underwater mining of minerals, Sts. Constantine and Helena Resort, Varna, 18-22 September, Bulgaria, Sofia, Bulgaria : Scientific and Technical Union of Mining, Geology and Metallurgy, (2023)
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Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands
Studije u oblasti antikancerogenih karakteristika jedinjenja rutenijuma(III/II) izazivaju veliku pažnju već nekoliko godina otkako su neka od njih kao što su KP1019 (indazolijum-tetrahloridobis(H-indazol)rutenat(III)) i NAMI-A (imidazolijum) -trans-tetrahlorido(dimetilsulfoksid)indazolerutenat(III)) dostigao nivo kliničkog ispitivanja. Kompleksi rutenijuma u reakciji sa molekulom DNK formiraju prvenstveno gvanin- i adenin-adukt, kao komplekse platine. Takođe, nekoliko studija ukazuje na veoma jake interakcije sa proteinima. Međutim, kompleksi Ru(III/II) pokazuju generalno manje toksične efekte od lekova platine(II).1 Proučavali smo kinetiku reakcija supstitucije kompleksa [Ru(terpi)(bipi)Cl]Cl sa biološki važnim ligandima: dimetilsulfoksidom, gvanozin-5’-monofosfatom, ...Aleksandar Mijatović, Biljana Petrović, Ratomir Jelić, Živadin Bugarčić. "Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands" in EuroAnalysis 16 - Challenges in Modern Analytical Chemistry, Belgrade : Division of Analytical Chemistry of the Serbian Chemical Society (2011)
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Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”
... (http://nora.nerc.ac.uk/3817/1/EUROENGEO_2008_Kessler_et_al.pdf) QIANG, W. et. alii. An effective method for 3D geological modeling with multi-sour- ce data integration. Computers & Geosciences, n. 31, p. 35-43, 2005. SCHOFIELD, W., BREACH M. Engineering surveying. UK: Elsevier, 2007. STOILJKOVIC, V. et ...Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić. "Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”" in Revista Escola de Minas, School of Mines Magazine, Sao paulo, Brasil : SciELO (2015)
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Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector
To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatoriBoban Pavlović, Dejan Ivezić, Marija Živković. "Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector" in Energy Policy, Elsevier BV (2020). https://doi.org/10.1016/j.enpol.2020.111936
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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... altered by dolomitization (Blendinger 1997; Schubel & Veblen 2005). Russo et al. (2000) sug- gested that the lack of dolomitization of the Marmola- da, Latemar, Vernel and Ombrettola platforms in the Dolomites resulted from the sealing effect of the low- permeability Ladinian volcanics preventing ...
... which was first recorded in the Ilyrian and disappeared by the Carnian (Piros & Preto 2008). Budai et al. (2001b) described a mass occurrence of da- sycladaleans including, D. annalata annulata, D. annu- lata pbilosopbby, and Gyroporella sp. from the white to beige, well-stratihed dolomite of ...
... sta) is also recognized for the help during the final editing. REFERENCES Bernecker M. (1996) - Upper 'Triassic reefs of the Oman Mountains: Data from the south Tethyan margin. Fa ctes, 34: 41-76. Berra E, Jadoul E, Binda M. & Lanfranchi A. (2011) – Large-scale progradation, demise and rebirth ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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Some examples of interactions between certain rare earth elements and soil
... predictions and further understanding of the elements fate as well as their potential hazard to the environment. SUPPLEMENTARY MATERIAL Additional data and information is available electronically at the pages of journal website: https://www.shd-pub.org.rs/index.php/JSCS/article/view/11073, or from ...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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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 ...... and grammat- ical category and for each ending of length 3,4,5,6, as an estimate of the probability that the FST class is the appropriate one. The da- taset includes: ending, POS, gender, animateness, pronunciation, FST and proba- bility (chance rank 0-100) for FST (table 1, column Rel. freq.). ...
... Intelligence 2015 (Granada, Spain) 88 References Ammar, C., Haddar, K., & Romary, L. (2015). Auto- matic Construction of a TMF Terminological Da- tabase Using a Transducer Cascade. Proc. of Recent Advances in Natural Language Processing. (pp. 17-23). Baldwin, T., & Kim, S. N. (2010). Multiword ...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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Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method... voltage of 40kV. Sample record- ing was performed in the range of 2θ from 5 to 50° with a step of 0.02° and a retention time of 0.5s at each step. The data posi- tion of the diffraction peaks 2θ (°), the value of the flange dis- tance d (m), and the corresponding intensities (I) use impulse unite (imp) ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
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Wordnet Development Using a Multifunctional Tool
Ivan Obradović, Ranka Stanković (2007)In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...... group at the University of Belgrade has been developing various lexical resources over quite a long period, reaching a considerable volume to date. Given the fact that these resources have been developed for many years, they have naturally been conceived within different projects and frameworks ...Ivan Obradović, Ranka Stanković. "Wordnet Development Using a Multifunctional Tool" in Proceedings of the International Workshop Computer Aided Language Processing (CALP) '2007, Borovets, Bulgaria, September 2007, - (2007)
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Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)
Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu. "Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00550-3
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... Science, Volume 369, 30 April 2016, Pages 390-397. [31]Reich, T. et al.: Highly selective CO2/CH4 gas uptake by a halogen-decorated borazine-linked polymer. J. Mater. Chem., 2012, Issue 22, pl3524-13528. https://doi.org/10.1039/C2JM31123B [32] Hauchhum, L. . et al.: Carbon dioxide adsorption ...
... financial costs involved in developing the technologies and the need for enough facilities to transport and store CO-. Projects like the Boundary Dam carbon capture facility in Canada captures 1 million tons per year carbon emissions from the 150 MW coal power plant ensure safe and clean air. ...
... the enhanced production will depend on gas prices. One industrial-scale CO- replacing CHa in coal seam demonstration project has taken place to date, the Allison project in the United States and it is no longer injecting CO-». A global cost curve was developed for CO- replacing methane in coalbeds ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове
Јелка Крушић (2023)Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки моделЈелка Крушић. Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове, Београд : Универзитет у Београду, Рударско - геолошки факултет, 2023