Претрага
2375 items
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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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
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Development of an integrated model for open-pit-mine discontinuous haulage system optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović . "Development of an integrated model for open-pit-mine discontinuous haulage system optimization" in Sustainability, MDPI (2024). https://doi.org/10.3390/su16083156
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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
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Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... Journal of Sustainable Development of Energy, Water and Environment Systems Year 2015 Volume 3, Issue 3, pp 217-229 218 Nowadays, water supply is a highly complex and significant issue in every society. It is of vital importance to control and monitor the operation of each water source ...
... sediments. The color of the sediments ranges from dark gray to light gray and olive gray. Pleistocene and Holocene deposits were abstracted during the Quaternary Journal of Sustainable Development of Energy, Water and Environment Systems Year 2015 Volume 3, Issue 3, pp 217-229 219 ...
... Sustainable Development of Energy, Water and Environment Systems Year 2015 Volume 3, Issue 3, pp 217-229 221 Table 2. Model layers and corresponding terrain layers First confining stratum Clayey sediments with sand interbeds Second water-bearing stratum Fine- and medium-grain sandy sediments ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
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Процена емисије гасова са ефектом стаклене баште као последице енергетске активности
Горана Остојић (2024)Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање... transitioning: to renewable energy sources and introducing technologies to increase energy efficiency. Based on the analysis of greenhouse gas emissions from different energy sources, significant differences were observed in the amounts of carbon dioxide (CO-»), methane (CHa), and nitrogen oxides (N-»O) ...
... t Institute (SEI). LEAP: Long-range Energy Alternatives Planning System. Available at: https://www.sei.org/projects-and-tools/tools/leap- long-range-energy-alternatives-planning-system/. [29] Meinshausen, M., 2011. "The RCP Greenhouse Gas Concentrations and their Extensions from 1765 to 2300 ...
... olicies/eu-climate-action/2030 _ ctp_en [32] Federal Ministry for Economic Affairs and Energy (Germany). (2020). 7he Energy Transition in Germany. Retrieved from https://www.bmwi.de/Redaktion/EN/Dossier/energy-transition.html [33] Ministry of Finance, Sweden. (2020). Carbon Taxation in Sweden ...Горана Остојић. Процена емисије гасова са ефектом стаклене баште као последице енергетске активности, 2024
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Rationalization of electrical energy consumption in mining plants
Aleksandrović Snežana, Jovančić Predrag, Jeftenić Ilija. "Rationalization of electrical energy consumption in mining plants" in 6th International Symposium Mining and Environmental Protection MEP 2017, Vrdnik, Serbia:Center for Environmental Engineering, Mining Department, Faculty of Mining and Geology, University of Belgrade (2017): 144-148
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Geothermal concept for energy efficient improvement of space heating and cooling in highly urbanized area
Vranješ Ana, Milenić Dejan, Dokmanović Petar. "Geothermal concept for energy efficient improvement of space heating and cooling in highly urbanized area" in Thermal Science 19 no. 3, Beograd:Vinca Institute of Nuclear Sciences (2015): 857-864
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Getechnical aspects of the use of geothermal energy potential
Rakić Dragoslav, Šušić Nenad, Basarić Irena. "Getechnical aspects of the use of geothermal energy potential" in Proceedings [Elektronski izvor] / 7th International Conference Science and Higher Education in Function of Sustainable Development - SED 2014, 3-4 October 2014, Uzice, Serbia, Užice, Srbija:Business and Technical College of Vocation Studies (2014): Apr-15-Apr-21
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Nonequilibrium athermal random-field Ising model on hexagonal lattices
Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević. "Nonequilibrium athermal random-field Ising model on hexagonal lattices" in Physical Review E, American Physical Society (APS) (2021). https://doi.org/10.1103/PhysRevE.103.032147
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Geothermal potential, chemical characteristic and utilization of groundwater in Serbia
To collect and unify data about all geothermal resources in Serbia, a database was formed. The database allows us to perceive the geothermal resources of Serbia and their potential for utilization. Based on the data available in the geothermal database, the estimated temperatures of reservoirs, heat power, and geothermal energy utilization were calculated. The database contains 293 geothermal records (springs, boreholes) registered at 160 locations, with groundwater temperatures in the range between 20 and 111 °C. The maximum expected ...Geothermal database, Geothermal resources, Geothermal potential, Hydrochemistry, Hierarchical cluster analysis, SerbiaTanja Petrović Pantić, Katarina Atanasković Samolov, Jana Štrbački, Milan Tomić. "Geothermal potential, chemical characteristic and utilization of groundwater in Serbia" in Environmental Earth Sciences, Springer Link (2021). https://doi.org/https://doi.org/10.1007/s12665-021-09985-w
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Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas
This paper describes updated calculation methodology of Danube backwater impact, occurred as a consequence of “Đerdap I” hydropower plant operation, onto the meliorated riverside areas. This methodology is based on hydrodynamic analysis of groundwater regime (size, duration, level and inflow changes) and quantification of melioration areas impairment which is caused by “Đerdap I” hydropower plant operation. By comparing the groundwater regime elements, obtained by variant hydrodynamic calculation in mathematical models for natural – not backed up and actual – ...HPP ''Djerdap 1'', backwater influence, groundwater regime, hydrodynamic analysis, melioration area, drainage system, additional energy engagementPredrag Pajić, Uroš Urošević, Dušan Polomčić, Milan Dimkić. "Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas" in IWA Specialist Groundwater Conference, Conference Proceedings and Book of Abstracts, 09-11 June 2016, Belgrade, Serbia, Institut Jaroslav Černi (2016)
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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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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
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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
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Energetska bezbednost sektora prirodnog gasa Srbije
U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...... periods and the potential trend of assessing the security of natural gas supply to Serbia, as well as its vulnerability to interruptions in international supply chains. Through the paper, an analysis of the energy security of the natural gas sector assessed by the N-1 index, IDUPS and the parameter ...
... supply, as well as their mutual interaction, on the security of supply, and ultimately on the energy security of the Republic of Serbia. N-1, IDUPS, security od supply, energy security Brief biography (CV) Aleksandar Madzarevic was born on April 21, 1987, in Ivanjica. In 2006, he (max. 70 words ...
... indispensable part of the puzzle of creating energy security. Pronounced import dependence is a dominant feature of the natural gas sector, more precisely, the Republic of Serbia is strongly dependent on Russian gas, with more than 80% of imported gas volumes, and until two years ago, it was exclusively ...Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac. "Energetska bezbednost sektora prirodnog gasa Srbije" in 36. Međunarodni kongres o procesnoj industriji – Procesing ’23, Šabac, 1. i 2. juna 2023. , Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku (2023)
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Frequency and Length of Syllables in Serbian
Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.... Rovenchak, A. (2011). Canonical word forms: Menzerath-Altmann law, phonemic length and syllabic length. In: Kelih, E., Levickij, V., Matskulyak, Y. (eds.), Issues in Quantitative Linguistics 2: 136-147. Lüdenscheid: RAM-Verlag. Frequency and Length of Syllables in Serbian 123 Mačutek, J., Wimmer ...
... 18 This hypothesis (now known as the law of brevity) was first formulated for words by Zipf (1935). 19 Ferrer-i-Cancho & Hernández-Fernández (2013) provide Spearman correlations between word frequency and length (measured in the number of letters) in seven languages. The ...
... (2008). Frequency and Length of Syllables in Serbian 117 3. Language material Serbian is a South Slavic language. It has the official status in Serbia (exclusively) and in Bosnia and Herzegovina (as one of three languages, together with Bosnian and Croatian), and the status of a minority ...Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová. "Frequency and Length of Syllables in Serbian" in Glottometrics (2019)
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Ecological Effects of Usage of Municipal Solid Waste for Energy Purposes
Crnomarković Milan, Živković Marija (2017)Crnomarković Milan, Živković Marija. "Ecological Effects of Usage of Municipal Solid Waste for Energy Purposes" in Proceedings of 6th International Symposium Mining and Environmental Protection, Mining and Environmental Protection, :RGF (2017): 149-157
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Green House Gases Inventory from Direct Energy Related Emissions in Serbia
Popović Jovana, Živković Marija (2017)Popović Jovana, Živković Marija. "Green House Gases Inventory from Direct Energy Related Emissions in Serbia" in Proceedings of 6th International Symposium Mining and Environmental Protection, Mining and Environmental Protection, :RGF (2017): 192-198
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... IVEZIĆ D., 2011: Serbian Energy Development Based on Lignite Production. Energy Policy, Vol. 39, No. 2, pp. 1191–1199. IVEZIĆ D., ĐAJIĆ N., ŽIVKOVIĆ M., 2013: Potential and Barriers to Renewable Energy Sources in Serbia. Energy Sources, Part B: Economics, Planning, and Policy, Vol. 8, No. 2, pp. 162–170 ...
... 5th International Scientific Conference on Energy and Climate Change, 192–199, Atina, Grčka. IVEZIĆ D., ĐAJIĆ N., ŽIVKOVIĆ M., 2013: Potential and Barriers to Renewable Energy Sources in Serbia. Energy Sources, Part B: Economics, Planning, and Policy, Vol. 8, No. 2, pp. 162–170. GRUJIĆ M, IVEZIĆ ...
... Paratethys): new constraints from magneto- and biostratigraphy, Global and Planetary Change, 2013. 252. Ivezić D., Đajić N., Živković M.: The Potential of and Barriers to Renewable Energy Sources in Serbia, Energy Sources Part Beconomics Planning and Policy, 2013. 253. Gaudenyi T., Nenadić D., J ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016