Претрага
173 items
-
Determining the Impact of Cutting Elements State on the Bucket–Wheel Excavator Vibration and Energy Consumption
Background There are two types of specifc sizes’ measurements. The frst is the measurement of energy consumption in a working technological process, and the second is the measurement of vibration, which is displayed over amplitudes of speed. There is an interplay between these two processes. Increasing the power consumption, the value of the vibration speed amplitudes increases. Purpose The process of the determination of machining parameters was based on minimizing the power consumption and vibration of the cutting tool, ...Filip Miletić, Predrag Jovančić, Miloš Milovančević, Miloš Tanasijević, Stevan Đenadić. "Determining the Impact of Cutting Elements State on the Bucket–Wheel Excavator Vibration and Energy Consumption" in Journal of Vibration Engineering & Technologies, Springer (2022). https://doi.org/10.1007/s42417-022-00482-3
-
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
-
Izveštaj o održanoj međunarodnoj konferenciji “7th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES 2012”
Bajić Dragoljub, Zarić Jelena, Ristić-Vakanjac Vesna, Polomčić Dušan, Čokorilo Marina. "Izveštaj o održanoj međunarodnoj konferenciji “7th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES 2012”" in Zapisnici Srpskog geološkog društva, Beograd, Srbija:Srpsko geološko društvo (2014): 245-256
-
Scanning Electron Microscopy Coupled with Energy Dispersive Spectrometric Analysis Reveals for the First Time Weddellite and Sylvite Crystals on the Surface of Involucral Bracts and Petals of two Xeranthemum L. (Compositae) Species
Milan Gavrilović, Suzana Erić, Petar Marin, Núria Garcia-Jacas, Alfonso Susanna, Pedja Janaćković (2017)Milan Gavrilović, Suzana Erić, Petar Marin, Núria Garcia-Jacas, Alfonso Susanna, Pedja Janaćković. "Scanning Electron Microscopy Coupled with Energy Dispersive Spectrometric Analysis Reveals for the First Time Weddellite and Sylvite Crystals on the Surface of Involucral Bracts and Petals of two Xeranthemum L. (Compositae) Species" in Microscopy and Microanalysis 23 no. 3, :Cambridge University Press (2017): 679-686
-
Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranjeJelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
-
Assessments of effects of implementation of strategic plans for development of Belgrade District heating system
The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić. "Assessments of effects of implementation of strategic plans for development of Belgrade District heating system" in Sustainable Cities and Society, Elsevier BV (2020). https://doi.org/10.1016/j.scs.2020.102304
-
Challenges of Renewable Energy Source Utilisation at Section of Future Highway E-763 Belgrade-Southern Adriatic Across Karst Plateau of Pešter Plateau (Western Serbia)
Milenić Dejan, Stevanović Zoran, Dragišić Veselin, Vranješ Ana, Savić Nevena. "Challenges of Renewable Energy Source Utilisation at Section of Future Highway E-763 Belgrade-Southern Adriatic Across Karst Plateau of Pešter Plateau (Western Serbia)" in Engineering Geology for Society and Territory - Volume 5, Proceedings of the XII IAEG Congress, Torino 2014 5, :Springer International (2014): 581-584. https://doi.org/10.1007/978-3-319-09048-1_113
-
Testing the energy value of different types of coal by the method of active thermography
In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković. "Testing the energy value of different types of coal by the method of active thermography" in 9th International Scientific Conference on Defensive Technologies, Belgrade, Serbia, 15-16 October 2020, The Military Technical Institute (2020)
-
Hidrogeotermalni resursi teritorije grada Beograda
Ana Vranješ (2012-12-12)Republika Srbija je izrazito bogata hidrogeotermalnim resursima. Podzemne vode satemperaturama preko 20oC (pa do 96oC, Vranjska Banja) relativno su dobro iskorišćene.Nasuprot njima, podzemne vode sa temperaturama do 20oC do sada uglavnom nisu bilepredmet istraživanja sa bilo kog aspekta izuzev za potrebe vodosnabdevanja. Razvojemsistema toplotnih pumpi, mogućnosti višenamenskog korišćenja ovih voda značajno suuvećane.Teritorija Beograda odlikuje se značajnim resursima podzemnih voda, pre svega u okvirualuvijalnih peskovito-šljunkovitih naslaga i neogenih tortonsko-sarmatskih krečnjačkihnaslaga. Temperatura ovih voda ne prelazi 25oC. Njihovim zahvatanjem preko istražnoeksploatacionihbunara ...geotermalna energija, hidrogeotermalni resursi, hidrogeotermalni sistemi, hidrogeotermalnapotencijalnost, energetska valorizacija, hidrogeološka rejonizacija, grad BeogradAna Vranješ. "Hidrogeotermalni resursi teritorije grada Beograda" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-12)
-
Mesto input-output modela u metodologiji upravljanja privrednim društvom TE-KO Kostolac
Maksimović Svetomir, Miljanović Igor (2010)Maksimović Svetomir, Miljanović Igor. "Mesto input-output modela u metodologiji upravljanja privrednim društvom TE-KO Kostolac" in Proceedings of the 3rd International Symposium Energy Mining - Energy Mining, New Technologies, Sustainable Development, ER 2010, 8-11.09.2010. - no. -, Banja Junaković, Srbija:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2010): 173-182. https://doi.org/-
-
Thermal evolution of cation distribution/crystallite size and their correlation with the magnetic state of Yb-substituted zinc ferrite nanoparticles
Vučinić-Vasić Milica, Bozin Emil S., Bessais Lotfi, Stojanović Goran, Kozmidis-Luburić Uranija, Abeykoon Milinda, Jancar Bostjan, Meden Anton, Kremenović Aleksandar, Antić Bratislav (2013)Vučinić-Vasić Milica, Bozin Emil S., Bessais Lotfi, Stojanović Goran, Kozmidis-Luburić Uranija, Abeykoon Milinda, Jancar Bostjan, Meden Anton, Kremenović Aleksandar, Antić Bratislav. "Thermal evolution of cation distribution/crystallite size and their correlation with the magnetic state of Yb-substituted zinc ferrite nanoparticles" in Journal of Physical Chemistry C 23 no. 117, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Chemical Society (2013): 12358-12365. https://doi.org/10.1021/jp403459t
-
Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia
Dejan Ivezić, Marija Živković (2023)Finalna potrošnja energije u industrijskom sektoru čini skoro 25% finalne potrošnje energije u Republici Srbiji. Procenjuje se da je 50-70% potrošnje energije u industriji namenjeno proizvodnji toplotne energije u različitim industrijskim procesima. Deo proizvedene toplotne energije se nepovratno gubi kao energija odvedena u okolinu: prenosom toplote kroz zidove procesne opreme, dimnim gasovim, otpadnim vodama itd. Korišćenjem otpadne toplote povećava se efikasnost korišćenja primarne energije i smanjuje ukupna potreba za energijom. Otpadna toplota se može koristiti u samom industrijskom objektu ...Dejan Ivezić, Marija Živković. "Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.17I
-
Fuzzy management in coal cleaning
Miljanović Igor, Benović Tomo, Maksimović Svetomir, Petrovski Aleksandar, Josipović Pejović Milena (2010)Miljanović Igor, Benović Tomo, Maksimović Svetomir, Petrovski Aleksandar, Josipović Pejović Milena. "Fuzzy management in coal cleaning" in Proceedings of the 3rd International Symposium Energy Mining - Energy Mining, New Technologies, Sustainable Development, ER 2010, 8-11.09.2010. - no. -, Banja Junaković, Srbija:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2010): 282-287. https://doi.org/-
-
Application of the principle of circular economy to the thermal groundwater, the example of the municipality of Bogatić
There are about 360 locations of thermal and thermo-mineral waters in Serbia, whose water temperatures range from 14 to 98°C, which ranks Serbia as the richest European country in geothermal energy. The mentioned water resources (thermal and thermomineral waters) are used, mostly, for therapeutic purposes in spas and sports and recreational centers. The main problem that is present is the fact that they are not used in a rational and efficient way. The paper will give examples territorially related ...Marija Jovanović, Vesna Ristić Vakanjac. "Application of the principle of circular economy to the thermal groundwater, the example of the municipality of Bogatić" in Book of proceedings of the 3rd International Scientific Conference on vircular and bioeconomy CIBEK2021, Belgrade, Belgrade : School of Engineering Management (2021)
-
Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje
Energetski razvoj zemalja Evrope decenijama je bio baziran na uglju. Instalisana snaga svih energetskih kapaciteta koji su zasnovani na uglju je preko 2000 GW. Ugalj je i dalje od bitnog značaja za dobijanje električne energije u Evropi. I pored toga što postoji veliki potencijal uglja, trend je smanjenja proizvodnje električne energije iz uglja do 2050. godine. Imajući u vidu Zelenu agendu i politiku EU, zemlje Evrope se okreću obnovljivim izvorima energije. Srbija u okviru obnovljvih izvora ima potencijala prevashodno ...Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić. "Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje" in Energija, ekonomija, ekologija, Savez energetičara (2022). https://doi.org/10.46793/EEE22-3.63J
-
Business Models for Small-scale Biomass Projects Development
Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...Dejan Ivezić, Miodrag Gluščević, Marija Živković. "Business Models for Small-scale Biomass Projects Development" in 19th International Conference on Thermal Science and Engineering of Serbia, Niš : Faculty of Mechanical Engineering (2019)
-
Методологија интегралне анализе сценарија енергетског развоја
Александар Маџаревић (2019)енергетска безбедност, сценарио развоја, фази логика, сигурност снабдевања, доступност, расположивост, природни гасАлександар Маџаревић. Методологија интегралне анализе сценарија енергетског развоја, Рударско-геолошки факултет, 2019
-
Heterogeneity and Disorder in Ti1-xFeyO 2- d nanocrystal rutile-based flowerlike aggregates: Detection of anatase
Kremenović Aleksandar, Antić Bratislav, Blanuša Jovan, Čomor Mirjana, Colomban Philippe, Mazerolles Leo, Božin Emil S. (2011)Kremenović Aleksandar, Antić Bratislav, Blanuša Jovan, Čomor Mirjana, Colomban Philippe, Mazerolles Leo, Božin Emil S.. "Heterogeneity and Disorder in Ti1-xFeyO 2- d nanocrystal rutile-based flowerlike aggregates: Detection of anatase" in Journal of Physical Chemistry C 11 no. 115, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Chemical Society (2011): 4395-4403. https://doi.org/10.1021/jp109437b
-
Prikaz tehnološkog procesa otkopavanja otkrivke i eksploatacije uglja na površinskom kopu podinska ugljena serija, Rudnik Suvodol – Makedonija
Petrovski Aleksandar, Miljanović Igor, Boševski Stefko, Benović Tomo, Maksimović Svetomir, Josipović Pejović Milena, Milutinović Aleksandar, Čebašek Vladimir (2010)Petrovski Aleksandar, Miljanović Igor, Boševski Stefko, Benović Tomo, Maksimović Svetomir, Josipović Pejović Milena, Milutinović Aleksandar, Čebašek Vladimir. "Prikaz tehnološkog procesa otkopavanja otkrivke i eksploatacije uglja na površinskom kopu podinska ugljena serija, Rudnik Suvodol – Makedonija" in Proceedings of the 3rd International Symposium Energy Mining - Energy Mining, New Technologies, Sustainable Development, ER 2010, 8-11.09.2010. - no. -, Banja Junaković, Srbija:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2010): 209-215. https://doi.org/-
-
The challenges for Z-generation geologists
Dejan Radivojević (2022)Nastupajuća generacija geologa suočava se sa nekim problemima koji su poznati i njihovim prethodnicima, ali takođe i sa do sada novim i nepoznatim izazovima. Činjenica da mnogi geologiju povezuju sa „prljavim“ industrijama u kojima će biti sve manje prilika za zaposlenje u vreme kada se teži čistoj vodi, zemljištu i vazduhu kao i to da je smatraju zastarelom u sadašnje vreme brzog tehnološkog razvoja dovela je do velikog pada interesovanja za studije geologije svuda u svetu. Neophodno je još ...Dejan Radivojević. "The challenges for Z-generation geologists" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2022). https://doi.org/10.5937/tehnika2201037R