Претрага
2359 items
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The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia
Branislav Petrović (2022)The epikarst as a part of the karst aquifer represents a complex point of contact and mixing of unconsolidated material from the terrain surface, carbonate rocks altered by “corrosive” water, flora and fauna (and remains of), which is partially saturated with groundwater. Recharge of karst aquifers, usually, occurs via the unsaturated zone which uppermost part could be epikarst zone. Significant amounts of (plant accessible) water, and other solutes and particles, can be stored in this zone for extended periods ...Branislav Petrović. "The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia" in International Scientific Conference - Man and Karst 2022, Custonaci, Italy, 12-16.09.2022, Gruppo Grotte Ragusa - C.I.R.S. (2022)
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A Mathematical Learning Environment Based on Serbian Language Resources
In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...... resulting in a growing number and availability of learning materials, had a strong impact on changes in learning environments. New learning environments are needed, requiring appropriate technology to facilitate access to and management of learning materials in specific domains. Bearing ...
... practice. The process is based on clustering, categorizing and defining mathematical concepts from the base of relevant engineering problems. Figure 3. MLES application 3. GOALS AND CHALLENGES Searching and processing mathematical materials is a complex problem. Standard text processors cannot ...
... Search Engine. Journal of Theoretical and Applied Information Technology, 4 (10), pp. 1002-1012. [9] Mišutka, J., Galamboš, L., (2008). Extending Full Text Search Engine for Mathematical. Proceedings of Towards Digital Mathematics Library, pp. 55-67. IT Education and Practice Radojičić et al ...Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan. "A Mathematical Learning Environment Based on Serbian Language Resources" in Proceedings of the 7th International Scientific Conference Technics and Informatics in Education, Faculty of Technical Sciences, Čačak (2018)
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Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
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An update on the mineral-like Sr-containing transition metal arsenates
Tamara Đorđević, Ljiljana Karanović (2021)We report on the crystal structures of three novel synthetic SrM-arsenates (M = Ni and Fe3+), isostructural or structurally related to the minerals from tsumcorite, carminite and brackebuschite groups. They were synthesised under mild hydrothermal conditions and further characterised using single-crystal X-ray diffraction (SXRD), scanning electron microscopy with energy dispersive spectroscopy (SEMEDS) and Raman spectroscopy. SXRD and SEM-EDS yielded formulae: (I) SrNi2(AsO4)2·2H2O, (II) Sr1.4Fe3+ 1.6(AsO4)2(OH)1.6 and (III) SrFe3+(AsO4)(AsO3OH). All three structures are built up of slightly distorted MO6 octahedra ...арсенати метала, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманова спектроскопија, релевантна једињења у животној средини, арсенeochemistry and PetrologyTamara Đorđević, Ljiljana Karanović. "An update on the mineral-like Sr-containing transition metal arsenates" in Mineralogical Magazine, Mineralogical Society (2021). https://doi.org/10.1180/mgm.2021.41
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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 ...... ), inorganic carbonates (=60 Mt year!), polyurethane (=18 Mt year"), acrylic acid and acrylates (10 Mt year), polycarbonates (4 Mt year), and alkylene carbonates (a few kT year!). It is also widely used as a feedstock in polymer synthesis, pharmaceuticals, fine chemicals, and inorganic chemicals ...
... multistage operation and streams recycling, which are often perceived as challenges that make this operation difficult and complex. Various porous inorganic membranes typically composed of zeolites, metal-organic frameworks (MOFs), carbon molecular sieves (CMS), ceramics, and a few oxides (e.g., ...
... gas or other effluent streams. Although inorganic membranes can withstand high temperatures and often have mechanical stability, their high costs stili hamper their commercialization. Inorganic membranes have not yet been demonstrated on a large scale, and in fact, they are still far from scale-up ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)
N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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Phase relations and indicators of municipal waste physical condition
Rakić Dragoslav, Čaki Laslo, Basarić Irena. "Phase relations and indicators of municipal waste physical condition" in 4th International Conference: Regional Waste Managemen, Ohrid, Macedonia:ADKOM (2015): 201-220
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Weak and Strong Coupled Stochastic Oscillators with Delays in Coupling
Grozdanović Ines, Burić Nikola, Todorović Kristina, Vasović Nebojša. "Weak and Strong Coupled Stochastic Oscillators with Delays in Coupling" in Fourth Serbian Congress on Theoretical and applied Mechanics, Vrnjčka banja: (2013)
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Spontaneous Formation of Synchronization Clusters in Homogenous Neuronal Ensembles Induced by Noise and Interaction Delays
Franović Igor, Todorović Kristina, Vasović Nebojša, Burić Nikola. "Spontaneous Formation of Synchronization Clusters in Homogenous Neuronal Ensembles Induced by Noise and Interaction Delays" in Physical Review Letters 108 no. 9, Vašington:American Physical Society (2012): 094101-1-094101-5
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Persistence and failure of mean-field approximations adapted to a class of systems of delay-coupled excitable units
Franović Igor, Todorović Kristina, Vasović Nebojša, Burić Nikola. "Persistence and failure of mean-field approximations adapted to a class of systems of delay-coupled excitable units" in Physical Review E 89 no. 2, Vašington:American Physical Society (2014): 022926-1-022926-10
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Weak and strong coupled stochastic oscillators with delays in coupling
Grozdanović Ines (2013)Grozdanović Ines. "Weak and strong coupled stochastic oscillators with delays in coupling" in Proceedings of Forth Serbian (29th Yu) Congress on Theoretical and Applied Mechanics, Vrnjačka banja, Srbija:SERBIAN Society of Mechanics (2013): 657-662
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Microstructure refinement and physical properties of Ag-SnO2 based contact materials prepared by high-energy ball milling
Ćosović Vladan, Pavlović Mila, Ćosović Aleksandar, Vulić Predrag, Premović Milena, Živković Dragana, Talijan Nadežda (2013)Ćosović Vladan, Pavlović Mila, Ćosović Aleksandar, Vulić Predrag, Premović Milena, Živković Dragana, Talijan Nadežda. "Microstructure refinement and physical properties of Ag-SnO2 based contact materials prepared by high-energy ball milling" in Science of Sintering 45, Belgrade:Yugoslav Committee for ETAN (2013): 173-180. https://doi.org/10.2298/SOS1302173C
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Numerical and experimental diagnostic of dynamic behavior of the rotor-excavator construction
Maneski Taško, Jovančić Predrag, Ignjatović Dragan, Milošević Mitić Vesna, Trišović Nataša. "Numerical and experimental diagnostic of dynamic behavior of the rotor-excavator construction" in Third Serbian (28th Yu) Congress on Theoretical and Applied Mechanics 1, Vlasina Lake:Serbian society of mechanics (2011): 629-636
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... Desalination, Volume 307, 20-25. Freeman B.D., Pinnau I., (2004) Gas and liquid separations using membranes: an overview, ACS Symp. Ser., 876, 1–23. Gholam R.C., Dariush M. (2013) Theoretical and experimental investigation of desalting and dehydration of crude oil by assistance of ultrasonic irradiation ...
... ceramic membrane and application to the cross flow microfiltration of soluble waste oil, Mater. Lett, 52, 266–271. Leila V., Kamran G., Moslem F.(2012) Influence of key parameters on crude oil desalting: An experimental and theoretical study, Journal of Petroleum Science and Engineering, Volumes ...
... Teeside Oil Pipeline, SPE 28966, and Paper presented at the 1995 SPE International Symposium on Oilfield Chemistry, Texas, and February 14-17. Harouge (2011), About Harouge Oil Operations, Harouge Oil Operations, www.vebalibya.com. Harvie C. (2013) Oil and economic development: Libya in the ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... Desalination, Volume 307, 20-25. Freeman B.D., Pinnau I., (2004) Gas and liquid separations using membranes: an overview, ACS Symp. Ser., 876, 1–23. Gholam R.C., Dariush M. (2013) Theoretical and experimental investigation of desalting and dehydration of crude oil by assistance of ultrasonic irradiation ...
... ceramic membrane and application to the cross flow microfiltration of soluble waste oil, Mater. Lett, 52, 266–271. Leila V., Kamran G., Moslem F.(2012) Influence of key parameters on crude oil desalting: An experimental and theoretical study, Journal of Petroleum Science and Engineering, Volumes ...
... Teeside Oil Pipeline, SPE 28966, and Paper presented at the 1995 SPE International Symposium on Oilfield Chemistry, Texas, and February 14-17. Harouge (2011), About Harouge Oil Operations, Harouge Oil Operations, www.vebalibya.com. Harvie C. (2013) Oil and economic development: Libya in the ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... 88/2010) [18]. 3. Materials and Methods 3.1. Tailing Ponds The waste tailings from processing of flotation of metallic mineral ores are by-products of MMCC “Trepča” mining activities. Keeping in mind the topic of this paper—the physical and chemical characteristics of deposed material and the fact that ...
... different industrial sectors (mining, chemistry, ecology, medicine, etc.). This allows complete ranking of the alternatives. The method was developed by Jean-Pierre Brans (1982) [26], in two basic versions: PROMETHEE I, a method of partial ranking the alternatives; and PROMETHEE II, a method for complete ...
... of pollutants that are potentially dangerous to the surrounding ecosystem. The tailing ponds are unsuitably placed and the current lack of maintenance in addition to the disposed materials can permanently endanger the living environment. At the same time, these ponds represent a potential danger which ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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Komparacija metoda XRF i ICP-MS na uzorcima uglja i produkata sagorevanja
Ugljevi niskog ranga – ligniti u Republici Srbiji predstavljaju glavnu energetsku sirovinu koja se koristi za proizvodnju električne energije. Rudarstvo u Srbiji doprinosi bruto dodatoj vrednosti sa 1,8% (2020; https://publikacije.stat.gov.rs/). Sagorevanjem ugljeva niskog ranga u termoelektranama generišu se velike količine elektrofilterskog pepela i pepela, koje često predstavljaju jedan od izvora zagađenja životne sredine usled sadržaja toksičnih elemenata. Dalja upotreba produkata sagorevanja zavisi od njihovog sastava i sadržaja toksičnih mikroelemenata. Svakodnevno sagorevanje lignita u termoelektranama uslovljava konstantan monitoring potencijalno toksičnih ...Branko Kostić, Dejan Prelević, Sabina Kovač, Ksenija Eraković, Dragana Životić. "Komparacija metoda XRF i ICP-MS na uzorcima uglja i produkata sagorevanja" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Occurences and properties of zeolitic tuffs in Serbia
Radosavljević Mihajlović Ana, Došen Anja, Stojanović Jovica, Kašić Vladan, Simić Vladimir. "Occurences and properties of zeolitic tuffs in Serbia" in Proceedings of the 5th Serbian-Croatian-Slovenian Symposium on Zeolites no. 5, Belgrade:Serbian Zeolite Association (SZA): Faculty of Physical Cehmistry, 2013 (Faculty of Technology and Metallurgy) (2013): 116-119
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Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia
Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović. "Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)