Претрага
927 items
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Open Educational Resources in Serbia
... Basics of geometry. As to materials related to Computer Science and Information technology, they joined the Popular Hour of programming within the Global Movement of Education Week in Computer Science and Code.org. Namely, within a one-hour introduction to computer science and programming small OERs ...
... goals and teaching materials. According to Espana-Villegas and Caeiro-Rodriguez (2018) confirm that OER include all types of educational content (complete courses (educational programs), course materials, content modules, learning objects, textbooks, multimedia materials (text, sound, video ...
... with the aim of improving algorithmic literacy in Serbia through OERs. It includes the portal with learning materials for programming and Takprog, an official website with materials from competitions of secondary school students in Serbia in programming . The BubbleBee Portal was developed ...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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Threshold-induced correlations in the Random Field Ising Model
... is random. 1Faculty of Physics, University of Belgrade, POB 368, 11001, Belgrade, Serbia. 2COMP Centre of Excellence, Department of Applied Physics, Aalto University, P.O. Box 11100, 00076, Aalto, Espoo, Finland. 3Helsinki Institute of Physics, Department of Applied Physics, Aalto University, P.O. ...
... signal is random. Faculty of Physics, University of Belgrade, POB 368, 11001, Belgrade, Serbia. ?COMP Centre of Excellence, Department of Applied Physics, Aalto University, P.O. Box 11100, 00076, Aalto, Espoo, Finland. *Helsinki Institute of Physics, Department of Applied Physics, Aalto University, P.O. Box ...
... Examples of such systems stem from earthquakes'*” to neu- ronal networks”, from compression of wood samples! and porous materials**-~4 to deformation and fracture of stressed materials*>-*’, to name just a few. One very important common feature of these systems is that such avalanche-like signals appear ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... 11000 Belgrade, Serbia “ Department of Atomic Physics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia “ Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Fišegradska ...
... Macedonia COORGANIZERS: Minstry of Education and Science of Republic of Macedonia I _aonauue MHayka Ss. Cyril and Methodius University, Skopje 26th Congress of Chemists and Technologists of Macedonia Keywords: Alkali activated materials, kaolin, fly ash, XPS, HR-TEM, natural radioactivity ...
... photocatalytic processes toward green chemistry and sustainable development. Keywords: X-ray diffraction, Electron microscopy, Nanostructured materials -– 23- ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure" in Book of Abstracts / 26th Congress of SCTM with international participation, 20-23 September 2023, Ohrid, R. Macedonia, Skopje : Society of Chemists and Technologists of Macedonia (2023)
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Multi-elemental analysis of real water samples from the Požega area, Serbia
Nebojša Pantelić, Jana Štrbački, Ivana Maloparac, Nikola Tomašević, Biljana Dojčinović, Aleksandar Kostić (2022)Cilj ovog rada bio je ispitivanje kvaliteta realnih uzoraka vode za piće, prikupljenih sa teritorije grada Požege i okolnih seoskih naselja. Za određivanje koncentracije makro i mikroelemenata u uzorcima vode korišćena je analitička tehnika induktivno kuplovana plazma sa optičkom emisionom spektrometrijom, ICP-OES. Dobijeni rezultati upoređivani su sa maksimalno dozvoljenim kocentracijama elemenata propisanim nacionalnim Pravilnikom o higijenskoj ispravnosti vode za piće, kao i preporukama Svetske zdravstvene organizacije (WHO) i Američke agencije za zaštitu životne sredine (EPA). Analizirane vode su malomineralizovane ...Nebojša Pantelić, Jana Štrbački, Ivana Maloparac, Nikola Tomašević, Biljana Dojčinović, Aleksandar Kostić. "Multi-elemental analysis of real water samples from the Požega area, Serbia" in Zastita materijala, Inženjersko društvo za koroziju (2022). https://doi.org/10.5937/zasmat2201058P
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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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Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households
The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...... rate [20]. The basic information and material composition of HSs are given in Table 2 [21], [22]. The materials mentioned in Table 2 form the bulk of the furnace’s weight (90%). Other materials that constitute a smaller fraction of the appliance weight were not considered for the analysis. ...
... be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different ...
... common practice within European countries [3]. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter, i.e., three times more than road transport in the European Union (EU) [4]. 1 Junior Research ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households" in 5th International Scientific Conference ”Conference on Mechanical Engineering Technologies and Applications” COMETa2020, East Sarajevo, 2020, University of East Sarajevo, Faculty of Mechanical Engineering East Sarajevo (2020)
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x
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Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... and Petrography, Harvard University No. 322. Bergaya F. & Lagaly G. (2006) General introduction: clays, clay minerals, and clay science. Pp. 1-18 in: Handbook of Clay Science, Vol. 1: Developments in Clay Science (F. Bergaya, B.K.G. Theng & G. Lagaly, editors). Amsterdam, The Netherlands, Elsevier ...
... Characterisation of clayey raw materials for ceramic manufacture in ancient Sicily. Applied Clay Science, 53, 476–488. Monterio S.N. & Vieira C.M.F. (2004) Influence of firing temperature on the ceramic properties of clays from Campos dos Goytacazes, Brazil. Applied Clay Science, 27, 229-234. Moreno-Maroto ...
... Ligas P., Palomba M. & Raimondo M. (2001) Chemical, mineralogical and ceramic properties of kaolinitic materials from the Tresnuraghes mining district, western Sardinia, Italy. Applied Clay Science, 18, 145–155. Fenili E.P., Biz E, Boa Hora P.R.M., Madeira R., Modesto C.O. & Bernardin A.M. (2004) ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
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An aproach to Implementation of blended learning in a university setting
... course content, goals, outcome, as well as the basic course materials, and dynamic data – information on all important events during the course: results of test and activities, various announcements, additional course materials added by teachers, etc. In the initial phase of portal development ...
... for a forthcoming instruction class, download course materials or get informed about their test and exam results, date and time of forthcoming tests and exams, etc., without being physically present in the FMG building. Course materials available on the portal to date cover approximately ...
... implementation, INFOtheca, Journal of informatics and librarianship, Vol. XI, No.2, pp.3-19, 2010. [4] Teresa Martin-Blas, E-learning Platforms in Physics Education, in: Technology Education and Development, Aleksandar Lazinica and Carlos Calafate (eds.), InTech, pp.107-121, 2009. [5] Devedžić ...Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović . "An aproach to Implementation of blended learning in a university setting" in Proceedings of the Second International Conference on e-Learning, eLearning 2011, September 2011, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2011)
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... presented 13 papers at international and domestic conferences. Her published papers cover various areas of environmental science, plant science, soil science, materials science, and chemistry. Snežana B. Tošić, PhD Full professor Affiliation: University of Niš, Faculty of Sciences and Mathematics ...
... and domestic conferences. The focal points of the published papers were in the areas of chemical science and technology, electrochemistry, environmental science, soil science, and materials science. Mile D. Dimitrijević, PhD Full professor Affiliation: University of Belgrade, Technical faculty ...
... possibilities for substitution of stone in road construction with secondary raw materials.” The General Urban Plan is drawn up as a strategic developmental plan, with general elements of spatial development. The General Urban Plan is drawn up for a populated settlement which is the seat of a unit ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... sedimentological point of view), and all mineral raw materials used in the clay- based structural products (ceramics), such as loess, oil shales, separation tailings rich in organic matter, products obtained by washing of coal and other natural raw materials. The territory of Serbia is very rich in common ...
... bentonite, palygorskite-sepiolite, and common clays. In Developments in Clay Science 2; Elsevier Science: Amsterdam, The Netherlands, 2007; pp. 180+viii. 43. Simić, V. Contribution to the geological terminology of raw materials for structural ceramics. In Proceedings of the IV Interna- tional Conference ...
... with variable quality of mineral raw materials - 50–100 100–200 Deposits of medium size, bedded and lenticular, without uniform structure - 25–50 50–150 Resources 2021, 10, 63 7 of 18 and thickness, with variable quality of mineral raw materials 3 Deposits with very variable structure ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... comprehensive research approach to the interaction of groundwater and the water transported by a pressurized tunnel. Most studies dealing with this subject matter consider the problem of rapid groundwater inflow into a tunnel [4–9] and issues of structural stability [10,11]. Water 2019, 11, 603; doi:10.3390 ...
... comprehensive research approach to the interaction of groundwater and the water transported by a pressurized tunnel. Most studies dealing with this subject matter consider the problem of rapid groundwater inflow into a tunnel [4-9] and issues of structural stability [10,11]. Water 2019, 11, 603; doi:10.3390 ...
... deeper hydrogeologic system characterized by hypogenic conditions. Water 2019, 11, 603 3 of 10 Figure 2. Geological map of the study area. 3. Materials and Methods Research activities and the selection of methods depended on the operating regime of the water-conveyance tunnel. The campaign lasted ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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Building learning capacity by blending different sources of knowledge
... technologies and methods. The initial OER materials in BAEKTEL are published by universities and enterprises of the Western Balkans (WB), mostly in WB languages, which belong to "small" but closely related languages. However, educational materials in "big" languages such as English and Russian ...
... audience of potential learners, educational materials need to be of high quality and readily available. In this context, training by qualified OER trainers for both academic institution and enterprise staff involved in production of OER materials will be provided. The third objective of ...
... of the project is to produce course materials in several different languages, in various forms such as videos, audio streams and written material. In order to facilitate the use of these materials in a multilingual environment, a language support system is integrated into the BMP, consisting mainly ...Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić. "Building learning capacity by blending different sources of knowledge" in International Journal of Learning and Intellectual Capital (2016). https://doi.org/10.1504/IJLIC.2016.075698
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Novel cerium and praseodymium doped phosphate tungsten bronzes: Synthesis, characterization, the behavior in the Briggs-Rauscher reaction and photoluminescence properties
Tijana Maksimović, Pavle Tančić, Jelena Maksimović, Dimitrije Mara, Marija Ilić, Rik Van Deun, Ljubinka Joksović, Maja Pagnacco (2023)Due to the interesting and potentially useful properties, phosphate tungsten bronzes are constantly being studied and attract a lot of attention. In the present work, two different metallic elements, belonging to the group of rare-earth metals, cerium and praseodymium, were used as a dopants for phosphate tungsten bronzes. Novel cerium and praseodymium doped phosphate tungsten bronzes were successfully synthesized and further characterized by thermal analyses, Fourier-transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectrometer and ...Electrical and Electronic Engineering, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic Materials, Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, SpectroscopyTijana Maksimović, Pavle Tančić, Jelena Maksimović, Dimitrije Mara, Marija Ilić, Rik Van Deun, Ljubinka Joksović, Maja Pagnacco. "Novel cerium and praseodymium doped phosphate tungsten bronzes: Synthesis, characterization, the behavior in the Briggs-Rauscher reaction and photoluminescence properties" in Optical Materials, Elsevier BV (2023). https://doi.org/10.1016/j.optmat.2023.114125
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An integrated study of thermal treatment effects on the microstructure and magnetic properties of Zn-ferrite nanoparticles
Antić Bratislav V., Perović Marija, Kremenović Aleksandar, Blanuša Jovan L., Spasojević Vojislav V., Vulić Predrag, Bessais Lotfi, Božin Emil S. (2013)Antić Bratislav V., Perović Marija, Kremenović Aleksandar, Blanuša Jovan L., Spasojević Vojislav V., Vulić Predrag, Bessais Lotfi, Božin Emil S.. "An integrated study of thermal treatment effects on the microstructure and magnetic properties of Zn-ferrite nanoparticles" in Journal of Physics – Condensed Matter 25 no. 8, Bristol:IOP Publ. Ltd. (2013): 1-13. https://doi.org/10.1088/0953-8984/25/8/086001
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Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker... Sciences, Department of Chemistry, Biochemistry and Environmental Protection, 21000 Novi Sad, Serbia 2 · Centerfor Solid State and New Materials, Institute of Physics Belgrade, 11000 Belgrade, Serbia Laboratory of Crystallography, Faculty of Mining, and Geology, University of Belgrade, Đušina 7, 11000 ...
... Nardelli, M.B.; Calandra, M.; Car, R.; Cavazzoni, C.; Ceresoli, D.; Cococcioni, M.; et al. Advanced capabilities for materials modelling, with Quantum ESPRESSO. J. Phys. Condens. Matter. 2017, 29, 465901. [CrossRef] [PubMed] Scandolo, S.; Giannozzi, P.; Cavazzoni, C.; de Gironcoli, S.; Pasquarello ...
... G.L.; Cococcioni, M.; Dabo, 1.; et al.: QUANTUM ESPRESSO: A modular and open-source software project for quantum simulations of materials. J. Phys. Condens. Matter. 2009, 21, 395502. [CrossRef] [PubMed] Disclaimer/Publisher's Note: The statements, opinions and data contained in all publications ...Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... ophiolite localities obtained from legacy geologi- cal maps). Earth Science Informatics (2024) 17:1625–1644 Fig.3 Data acquisition, prepa- ration, machine learning model- ling and evaluation workflow 1629 Materials and methods || Data sources • Multispectral satellite imaging data ...
... the central part of North Macedonia, spans 5270 km? from north to south (Fig. 1), and contains the East Vardar Zone (EVZ). In general, the EVZ traverses Earth Science Informatics (2024) 17:1625–1644 Fig.1 a) Digital elevation 7559000 1627 7600000 ı model (DEM) of study area a with highlighted ...
... KNN models are comparable with the RF models. Most ophiolite class Earth Science Informatics (2024) 17:1625–1644 instances predictions are situated in the NW portion of the EVZ. Additionally, the ophiolites' general orientation in the central region of the EVZ is NE-SW, a pattern that all the ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Environmental Energy Security Indicators as Tools for Environmental Protection
Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост... W.M., Knapp, K.T., Compound forms of fossil fuel fly ash emissions, Environmental Science Technology 2010, Volume 4, pp. 450-456 21. Jovašević-Stojanović, M., Bartonova, A., Current State of Particulate Matter Research and Management in Serbia, CICEQ, Volume 16 , 2010, pp. 207-212 22. Djukić ...
... leads to the emission of particles. The particles further initiate the binding of other matter to the atmosphere, affecting the formation of smog in the lower atmosphere [20]. How much particulate matter will be emitted into the atmosphere depends primarily on the type of energy used and the sector ...
... energy terms, the demand for available energy is growing intensively [7]. In general, energy security is inextricably linked to the national security of a country and as such, can be considered in the context of general national state security as well as independently [8]. According to [9], energy ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)