Претрага
367 items
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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 ...... seen high growth rates in consumption, and also in production, in Serbia [7]. From the complete production of wood fuels in Serbia, the expansion of production capacities was largest in the wood pellet segment. Until 2016, over 54 pellet production facilities were actively operating [7]. To obtain ...
... MBS [21], [23], [24] LC phase Contribution Amount [kg] GWP100 per kg [kg CO2-Eq/kg] GWP100 total [kgCO2-eq] Production Steel production 63 2.445 154 Aluminum production 3.5 26.57 93 Transport Transport, freight, lorry 16-32 metric ton, EURO5 8 0.1648 1.32 Use Heating (20 years) ...
... PELLET [22], [23], [24] LC phase Contribution Amount [kg] GWP100 per kg [kg CO2-Eq/kg] GWP100 total [kgCO2-eq] Production Steel production 97 2.445 237.2 Aluminum production 6 26.57 159.4 Transport Transport, freight, lorry 16-32 metric ton, EURO5 8 0.1648 1.32 Use Heating (20 ...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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Production of morphological dictionaries of multi-word units using a multipurpose tool
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion... Измењено: 2023-10-14 03:28:08 Production of morphological dictionaries of multi-word units using a multipurpose tool Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Production of morphological dictionaries ...
... lemma also have to be described in a way that enables the production of all needed forms. This leads finally to the following lemma form: petokraka(petokrak.A6:aefs1g) zvezda(zvezda.N600:fs1q),NC_AXNr This DELAC entry enables the production of 32 MWU forms for DELACF, one of which, representing the ...
... Detection of inflectional properties of MWU lemmas We have further improved the procedure for production of MWU lemmas when we realized that the answers obtained automatically in support of manual production of MWU lemmas can also help in detection of the syntactic composition of a MWU and therefore ...Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...... decreases in the production fluid. Parameter C2 represents solid particles. With the rise of solid particles in the production fluid, the number of artificial methods that can be used is reduced. Parameter C3 represents GOR. With the increase in the gas factor in the production fluid, the efficiency ...
... increase in the amount of paraffin in the production fluid, the number of artificial methods that can be used is reduced. Parameter C5 represents water cut. With the increase in water in the production fluid, methods that can produce larger quantities of fluid are more widely used. 3.2. Synthesis Part ...
... 15 Parameter B2 represents the production. Based on the optimal and maximum amount of fluid that each of the observed artificial lift methods can produce, the greater the amount of fluid produced, the fewer the methods can be applied. Based on this value of production is translated into grades. Parameter ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Improving efficiency of thermal power plants through mine coal quality planning and control
Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja. "Improving efficiency of thermal power plants through mine coal quality planning and control" in Thermal Science, Vinča Institute of Nuclear Sciences (2018). https://doi.org/10.2298/TSCI170605209B
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Production of Thin Dielectric Layers on p-Hg1-xCdxTe
Damnjanović Vesna, Elazar Jovan (2010)Damnjanović Vesna, Elazar Jovan. "Production of Thin Dielectric Layers on p-Hg1-xCdxTe" in Proceedings of MediNano-3, Beograd, Srbija:The Institute of Physics (2010): 96-96
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Coal production in Serbia - Status and perspective
Pavlović Vladimir, Ignjatović Dragan, Jovančić Predrag, Mitrović Slobodan. "Coal production in Serbia - Status and perspective" in VII International Brown Coal Mining Congress 1, Bełchatów:PGE Górnictwo i Energetyka Konwencjonalna Spółka Akcyjna (2011): 261-274
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Serbian energy development based on lignite production
Jovančić Predrag, Tanasijević Miloš, Ivezić Dejan. "Serbian energy development based on lignite production" in Energy Policy 39 no. 3, Oxford;UK:Pergamon (2011): 1191-1199. https://doi.org/DOI: 10.1016/j.enpol.2010.11.0
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Petroleum production perspectives from unconventional resources in Serbia
Karović-Maričić Vesna, Leković Branko, Danilović Dušan . "Petroleum production perspectives from unconventional resources in Serbia" in 46th International October Conference on Mining and Metallurgy- IOC 2014, Bor Lake:Tehnički fakultet u Boru (2014): 358-362
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Technological Model of Coal Deposit - base for Mine Production Planning
Gligorić Zoran, Gligorić Miloš, Štrbac-Savić Svetlana. "Technological Model of Coal Deposit - base for Mine Production Planning" in 2nd Virtual International Conference on Science, Niš:Research and Development Center ALFATEC (2016)
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Deep oil wells between production and disaster - Duboke naftne bušotine između proizvodnje i katastrofe
Bošković Zvonimir, Mitrović Vladimir, Malbašić Tatjana, Stupar Jelka. "Deep oil wells between production and disaster - Duboke naftne bušotine između proizvodnje i katastrofe" in Technics Technologies Education Management / TTEM 7 no. No.2, Sarajevo: (2012): 580-585
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Changing influence into technological matrix on some production sectors in kolubara and tent economic association units
Maksimović Svetomir, Miljanović Igor (2010)Maksimović Svetomir, Miljanović Igor. "Changing influence into technological matrix on some production sectors in kolubara and tent economic association units" in Proceedings of the IX International scientific opencast mining conference, 20-23.10.2010. - no. -, Vrnjačka Banja, Srbija:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2010): 130-142. https://doi.org/-
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Phases and first results of shareholding and privatisation in production enterprises of the coal industry – experiences of other countries
Maksimović Svetomir, Miljanović Igor (2013)Maksimović Svetomir, Miljanović Igor. "Phases and first results of shareholding and privatisation in production enterprises of the coal industry – experiences of other countries" in Proceedings of the 5th Balkan Mining Congress BALKANMINE 2011, 18-20.10.2013 - no. -, Ohrid, FYR Macedonia:ELEM, University Goce Delcev, Stip (2013): 491-496. https://doi.org/-
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... produced in Serbia. However, they used to be imported and used for production of electrical equipment and devices that contained PCB-based oils and lubricants (transformers and condensers). The last transformer containing PCB-based fluid was produced in Serbia in 1986, while the last condenser was produced ...
... development of diverse agricultural production. Agricultural production is carried out in four climate-production zones!: 1) lowland zone of intensive production of crops, mainly grains and industrial crops (Vojvodina, Mačva, Stig), 2) hilly zone of intensive production of grains and forage crops mixed ...
... 33 Figure 6. Share continents of linseed production, 2009-2013. Complimentary Contributor Copy Linseed (Linum Usitatissimum L.) Production Trends in the World and in Serbia 133 Table 4. Production of linseed in the world, t, 2000-2013 Production | 2009 2010 2011 2012 2013 | Average |Cy,% | ...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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Application of structure models in planning the development of epis production sectors
Maksimović Svetomir, Miljanović Igor, Petrovski Aleksandar, Josipović Pejović Milena. "Application of structure models in planning the development of epis production sectors" in Proceedings of 22nd International Mining Congress, 11-13.05.2011 - no. -, Ankara, Turkey:UCTEA, The Chamber of Mining Engineers of Turkey (2011): 21-28. https://doi.org/-
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Lost production costs of the overburden excavation system caused by rubber belt failure
Bugarić Uglješa, Tanasijević Miloš, Polovina Dragan, Ignjatović Dragan, Jovančić Predrag. "Lost production costs of the overburden excavation system caused by rubber belt failure" in Journal of Maintenance and Reliability 14 no. 4, :Polish Maintenance Society (2012): 333-341
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Device for more efficiency production of heavy oil
Danilović Dušan, Karović-Maričić Vesna, Batalović Veselin, Leković Branko. "Device for more efficiency production of heavy oil" in Chemical Engineering Research and Design 2 no. 90, London-Amsterdam -New York:Elsevier (2012): 238-242
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Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya
Fandi Emad I. M., Leković Branko, Gazal Badees, Elhaddad Elnori, Al Saghr Abdulbaset. "Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya" in Acta Montanistica Slovaca 23 no. 3, Košice:Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG), Technical University of Kosice (2018): 245-259
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Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya
Fandi Emad I. M., Leković Branko, Gazal Badees, Elhaddad Elnori, Al Saghr Abdulbaset. "Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya" in Acta Montanistica Slovaca 23 no. 3, Košice:Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG), Technical University of Kosice (2018): 245-259
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Coal production in Serbia, the social aspects and making strategic decision support
Beljić Čedomir, Ristović Ivica, Gligorić Zoran, Gluščević Branko, Tomašević Aleksandra. "Coal production in Serbia, the social aspects and making strategic decision support" in 3rd International Conference Economics and Management-Based on New Technologies EMoNT 2013, Vrnjačka Banja : (2013): 107-111
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Determining indirect dependency of production segments within thermal power plant „Open pit mines Kostolac“ by multisectoral models
Maksimović Svetomir, Miljanović Igor, Živojinović Miljanović Ivana, Josipović Pejović Milena, Petrovski Aleksandar (2013)Maksimović Svetomir, Miljanović Igor, Živojinović Miljanović Ivana, Josipović Pejović Milena, Petrovski Aleksandar. "Determining indirect dependency of production segments within thermal power plant „Open pit mines Kostolac“ by multisectoral models" in Proceedings of the 5th Balkan Mining Congress BALKANMINE 2011, 18-20.10.2013 - no. -, Ohrid, FYR Macedonia:ELEM, University Goce Delcev, Stip (2013): 68-73. https://doi.org/-