Претрага
2215 items
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Definition the technology method of apatite flotation concentration from the phosphate deposit Lisina
Radulović Dragan, Mihajlović Slavica, Sekulić Živko, Vučinić Dušica. "Definition the technology method of apatite flotation concentration from the phosphate deposit Lisina" in Mining and Metallurgy Engineering Bor no. 2, Bor:Mining and Metallurgy Institute (2014): 131-138
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Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia
Оливера Крунић (2021)Оливера Крунић. "Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia" in Рационално коришћење земљишта и вода у Србији - Sustainable Use of Land and Water in Serbia- Serbian Academy of Sciences and Arts; Scientific Conferences Volume CXCVII; Department of Chemical and Biological Sciences, Book 19, Српска академија наука и уметности (2021)
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Creating an environment for free education and technology enhanced learning
Radojičić Marija, Obradović Ivan, Tatar Saša, Linzalone Roberto, Schiuma Giovanni, Carlucci Daniela (2014)Radojičić Marija, Obradović Ivan, Tatar Saša, Linzalone Roberto, Schiuma Giovanni, Carlucci Daniela. "Creating an environment for free education and technology enhanced learning" in Proc. of the Fifth International Conference on e-learning (eLearning-2014), 22-23 September, Belgrade, Serbia, Belgrade:Metropolitan University (2014): 44-48
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Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia
Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)The paper compares the flow regimes of the Resava River at the gauging stations of the Manasija Monastery (upper course) and the town of Svilajnac (lower course). The hydrological analysis encompasses a multiyear period of monitoring (1982–2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km2) and the Manasija Monastery station (358k m2), considering the overall monitoring period and characteristic years. The results indicate that the specific runoff in ...... Quater- nary and Ncogene sediments. Thcy are recharged by infiltration of precipitation, water from surface strecams, and in part by karst aquifer groundwater. They are drained directly into the river, generally during dry periods, but largely by wells that service public and industrial water supply, ...
... Monastery (upper course) and the town of Svilajnac (lower course). The ydrological analysis encompasses a multiyear period of monitoring (1982—2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km?) and the Manasija Monastery station ...
... Groundwater flows in developed systems of fractures and caverns. This aquifer is recharged by infiltration of precipitation and water from sink- ing streams. It is discharged via springs, groundwa-– ter flow into adjacent semi-permcable sediments, and in part by evapotranspiration. Springs are gen- ...Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić. "Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia" in National Conference with International Participation “GEOSCIENCES 2022”, Sofia : Bulgarian geological society (2022)
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Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field
Most of the wells in the oilfield Turija are operating with sucker rod pumps, where casing pressure at around 15 bar, and with marginal production rates. The high value of casing pressure indicates high pressure on the face of the formation and depends directly on well productivity. In addition, with increasing value of the casing pressure gas column in the annulus is moving the dynamic fluid level near pump intake and more gas is entering the pump, it results ...beam gas compressor, BGC, increase productivity, sucker rod pump, SRP, mature field, artificial lift, production optimisationBojan Martinović, Dušan Danilović, Branko Grubač, Robert Fadiga. "Productivity improvement with use of beam gas compressor: pilot test in Southeastern Europe mature field" in International Journal of Oil Gas and Coal Technology (2022)
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Ventex: an expert system for mine ventilation systems analysis
roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "Ventex: an expert system for mine ventilation systems analysis" in Mining Technology, United Kingdom (1997)
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The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin
Filip Anđelković, Dejan Radivojević (2019)... extensional back-arc basins: The role of inherited orogenic structures. Earth and Planetary Science Letters. 462, pp 86-98 3. Ivanišević, S., & Radivojević, D., (2018). Upper Miocene depositional environments of Kikinda-Mokrin High (Serbia). Interpretation. 6, pp 1-40 4. Juhász, G., Pogácsás, ...
... described lithostratigraphic units are on the level of formations and members and are characterized by their lithological concent, depositional environments, using field and borehole data, and geophysical methods (reflection seismics and geophysical well-logging). Such correlation has great significance ...
... Carpathians and their foreland: geology and hydrocarbon resources. AAPG Memoir. 84, pp 619-632 7. Mațenco, L., & Radivojević, D., (2012). On the formation and evolution of the Pannonian Basin: constraints derived from the structure of the junction area between the Carpathians and the Dinarides ...Filip Anđelković, Dejan Radivojević. "The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin" in Knjiga sažetaka i radova II Kongresa geologa Bosne i Hercegovine, Laktaši BiH, oktobar 2-4, 2019, Udruženje geologa u Bosni i Hercegovini (2019)
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Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin
Joni prelaznih metala u kombinaciji sa različitim ligandima nude veliki broj mogućnosti za ispitivanje potencijalnih bioaktivnosti. Među jonima prelaznih metala, bakar je poznat kao endogeni metal za ljude, sa karakterističnim biološkim redoks aktivnostima i relativno jakim afinitetom za nukleobaze. Kompleksi bakra ispoljavaju svoju antitumornu aktivnost na nekoliko različitih načina, generišu veliku količinu ROS, što uzrokuje oksidativno oštećenje mitohondrija i biomakromolekula. Nađeno je da kompleksi bakra(II) imaju umeren do dobar afinitet vezivanja sa DNK, uglavnom putem interkalacije.Angelina Petrović, Aleksandar Mijatović, Rada Baošić, Jovana Bogojeski. "Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin" in 6. Konferencija mladih hemičara Srbije, Srpsko hemijsko društvo (2018)
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A Tel Platform Blending Academic And Entrepreneurial Knowledge
... acronym BAEKTEL stands for "Blending Academic and Entrepreneurial Knowledge within Technology Enhanced Learning". The term "technology-enhanced learning" or TEL pertains to activities aimed at improving the quality and outcomes of learning where technology plays a significant supportive role, thus ...
... lectures at their own pace and to better prepare themselves for class or work activities. In brief, BAEKTEL enables OER learners from both universities and industry courses to fill in the gaps in their knowledge and become familiar with new knowledge and technology. 3. OVERVIEW OF BAEKTEL ...
... information technology and especially web technologies have offered new educational opportunities for solving the aforementioned problems. Even before the emerging of the Semantic Web or Web 3.0, the Web 2.0 had already enabled users to interact with knowledge and information in more active and col ...Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović. "A Tel Platform Blending Academic And Entrepreneurial Knowledge" in Proceedings of the The Fourth International Conference on e-Learning (eLearning-2013), September 2013, Belgrade, Serbia, Belgrade, Serbia : Belgrade Metropolitan University (2013)
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Selection demolition sylo technology
Gligorić Miloš, Milojević Jelena (2015)Gligorić Miloš, Milojević Jelena. "Selection demolition sylo technology" in Underground Mining Engineering no. 26, Belgrade:University of Belgrade - Faculty of Mining and Geology (2015): 33-42. https://doi.org/https://doi.org/10.5937/podrad
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A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)
Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik (2023)Regarding the aspect of mineral, thermo-mineral, and thermal waters, on the territory of the Republic of North Macedonia, there are 65 registered locations, of which 8 are categorized as spas. This includes the Kežovica spa, also known as the Štipska spa. In the vicinity of Kežovica Spa is the thermo-mineral L’Dži spring with mineralization around 1.3 g/L and the water temperature at the time of sampling was 50.1 °C. Spring L’Dži is generated by a fault structure and is ...Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik. "A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)" in National Conference with International Participation “GEOSCIENCES 2023”, Review of the Bulgarian Geological Society, Sofia : Bulgarian Geological Society (2023)
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Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje
U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.... interval TOPSIS method” Applied Mathematics and Computation 218(8), pp. 4295–4304, 2011. doi:10.1016/j.amc.2011.10.001; [10] Krohling, R.A., & Pacheco, A.G.C. (2015). A-TOPSIS - An Approach Based on TOPSIS for Ranking Evolutionary Algorithms. Procedia Computer Science, 55, 308–317; image3.png image4.png ...
... months of the current year. The analysis was performed in the aspect of reached production, coal quality, effective working time, capacity and time utilization and system stoppage using multicriteria decision–making methods. Ključne reči: proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja ...
... Sitorus, F., Cilliers, Jan J., Pablo, R., & Brito-Parada, R. (2019). Multi-criteria decision making for the choice problem in mining and mineral processing: Applications and trends. Expert [8] Bazzazi, A. A., Osanloo, M., & Karimi, B. (2011). Deriving preference order of open pit mines equipment through ...Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović . "Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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The rational technology model selection of the underground drivage development for the given conditions
Tokalić Rade, Vidanović Nebojša, Savić Ljubinko. "The rational technology model selection of the underground drivage development for the given conditions" in Underground Mining Engineering no. 23, Belgrade, Serbia:University of Belgrade, Faculty of Mining and Geology (2013): 11-20
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Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines
The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković. "Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines" in 8th International Conference MIining And Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles
Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...... ratio = 1:2 and total [Ru(trpy)(bpy)H2O] 2? concentration 1.0 Mm Kinetics, mechanism, and equilibrium studies of the reactions 1495 123 atmosphere during the titrations, was purified by passing it through 10 % NaOH, then 10 % H2SO4, and finally dis- tilled water. Ultrapure water was used for ...
... models. The best model, selected according to the above-mentioned method of calculation, was consistent with the deprotonation of water molecules and formation of hydroxo and l-hydroxo complexes, as given in Eqs. (2–4). The calculated values of hydrolysis constants are given in Table 2. ½Ru trpyð Þ ...
... models. The best model, selected according to the above-mentioned method of calculation, was consistent with the deprotonation of water molecules and formation of hydroxo and p-hydroxo complexes, as given in Eqs. (2-4). The calculated values of hydrolysis constants are given in Table 2. [Ru(upy) (bpy)H20]"* ...Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović. "Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles" in Monatshefte für Chemie - Chemical Monthly, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s00706-013-1044-1
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Designing and researcher
Rakić Dragoslav, Šišić Rijad, Zafirovski Zlatko, Papić Jovan. "Designing and researcher" in 13th International Multidisciplinary Scientific Geoconference SGEM 2013 : GeoConference on Ecology, Economics, Education and Legislation, 16-22 June, 2013, Albena, Bulgaria : Conference Proceedings 2, Sofia, Bulgaria:STEF92 Technology Ltd. (2013): 399-406. https://doi.org/10.5593/sgem2103
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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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Comparative study of Serbian Miocene coals – insights from biomarker composition
Stojanović Ksenija, Životić Dragana (2013)Stojanović Ksenija, Životić Dragana. "Comparative study of Serbian Miocene coals – insights from biomarker composition" in International Journal of Coal Geology 107 no. 1, Amsterdam, Netherlands:Elsevier BV (2013): 3-23. https://doi.org/10.1016/j.coal.2012.09.009
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The Effect Galena Particle Size on Flotation Kinetics
Cvetićanin Lidija, Vučinić Dušica, Lazić Predrag, Kostović Milena. "The Effect Galena Particle Size on Flotation Kinetics" in Journal of Mining Science no. 1 or 2, :Elsevier (2015)