Претрага
486 items
-
Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic
This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композицијаMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović. "Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic" in Energies, MDPI AG (2022). https://doi.org/10.3390/en15186786
-
Projection of SO2 emissions in coal power plants in Serbia
Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...... emissions of pollutant from coal-fired thermal power plants in Serbia exceed the permitted maximum values defined on the basis of the "Strategic Impact Assessment for the National Emission Reduction Plan (NERP)"' [14]. Other thermal power plants in Serbia had a much higher excess of the allowed emission ...
... the calorific value of the coal used. Projection of SO2 emissions in the Kostolac B thermal power plant is given in Figure 5. i "Strategic Impact Assessment for the National Emission Reduction Plan (NERP)"{14| 4 30 140 Millions Thousands 5 s | Projection of total calorific value 24.000.000 ...Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac. "Projection of SO2 emissions in coal power plants in Serbia" in 9th International Conference Mining and environmental protection, Sokobanja 24-27th May 2023., Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
-
Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US
Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...... record value of 36.8 Gt [2]. This assessment is based on a detailed regional sectoral and energy analysis, including the most recent official national statistics publicly available data on energy use, economic indicators, and climatic features. The pandemic impact and geopolitical moment in East ...
... the satisfaction of existence and comfort in performing daily activities with an increasingly obvious pressure on the systematic reduction of the impact on the environment in the processes of production, transformation, and consumption of electricity. Total global energy-related greenhouse gas emissions ...
... About 3,000 different large industrial plants in the EU-27 countries are emitters of various pollutants from fossil fuels. In order to mitigate the impact on the environment, EU policy aims to reduce emissions from such plants, which gives results already in the first years of the change in the use ...Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić. "Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US" in International Conference on Global Energy and Climate Change - ICGRECC-23, New York, 2023, Research Galery- Science Leagues (2023)
-
Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... recognized as being essential for ensuring reliable and affordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import depend- ency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered ...
... heating area), the security of energy supply (import dependency, Shannon–Wiener diversification index, the share of renewables) and environmental impact (carbon dioxide emission coefficient). Values of the selected indicators are determined for the current state of district heating systems and for ...
... energy systems should be directed toward ensuring reliable and affordable energy services, provided with reduced consumption of energy sources, impact on the environment and import dependency (United Nations 2019). Transition to more sustainable systems can be achieved by acting on the demand and ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
-
Preliminary regional landslide susceptibility assessment using limited data
Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...... REICHEN- BACH, P. (2002): Impact of mapping errors on the reliability of landslide hazard maps.– Nat. Hazards Earth Syst. Sci., 2, 3–14. doi: 10.5194/nhess-2-3-2002 BARREDO, J.I., BENAVIDES, A., HERVÁS, J. & VAN WESTEN, C.J. (2000): Com- paring heuristic landslide hazard assessment techniques using GIS ...
... confirmed that the selection of landslide conditioning parameters and the way in which they are being taken in the modelling have by far the greatest impact in any particular landslide susceptibility method. In practice vari- ous conditioning parameters are in use when performing land- slide susceptibility ...
... Измењено: 2023-10-14 04:19:39 Preliminary regional landslide susceptibility assessment using limited data Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska Дигитални репозиторијум Руд ...Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska. "Preliminary regional landslide susceptibility assessment using limited data" in Geologica Croatica , Croatian Geological Society (2019). https://doi.org/10.4154/gc.2019.03
-
Modeliranje i simulacija energetske tranzicije u sektoru domaćinstava
Boban S. Pavlović (2022)Aktuelnu energetsku tranziciju odlikuje ubrzanje procesa dekarbonizacije energetskih sistema, unapređenje energetske efikasnosti, razvoj čistijih tehnologija baziranih na obnovljivim izvorima energije i održivije korišćenje prirodnih resursa. Da bi se napravio ovako krupan zaokret u postojećim energetskim sistemima, osim promene postojećih tehnologija, potrebno je u planiranje energetske tranzicije uključiti i političke, sociološke, ekonomske i ekološke aspekte, a pre svega obrasce ponašanja i donošenja odluka krajnjih potrošača. Predmet istraživanja u disertaciji je energetska tranzicija sektora domaćinstva, preciznije tranzicija u grejanju domaćinstava, imajući u ...energetika, energetska tranzicija, energetsko planiranje, energetsko modeliranje, obnovljivi izvori energije, domaćinstva, ponašanje potrošačaBoban S. Pavlović. Modeliranje i simulacija energetske tranzicije u sektoru domaćinstava, Beograd : [B. Pavlović], 2022
-
Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia
Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin. "Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia" in Hydrogeology Journal, Berlin, Heidelberg : Springer, International Association of Hydrogeologists (2013). https://doi.org/10.1007/s10040-013-1025-9
-
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
-
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
-
Uticaj geološke neizvesnosti u razvoju rudarskih projekata
Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...... projekata;Impact of geological uncertainty in the development of mining projects Petar Marković, Dejan Stevanović, Mirjana Banković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Uticaj geološke neizvesnosti u razvoju rudarskih projekata;Impact of geological ...
... CRITICAL MINERALS 2023 Zlatibor, 11-14. oktobar 2023. Zlatibor, 11-14 October 2023 UTICAJ GEOLOŠKE NEIZVESNOSTI U RAZVOJU RUDARSKIH PROJEKATA IMPACT OF GEOLOGICAL UNCERTAINTY IN THE DEVELOPMENT OF MINING PROJECTS Marković P.!, Stevanović D.?, Banković M.* Apstrakt Rudarstvo je industrija ...
... otkopavanja na površinskim kopovima. Bor, Srbija: Institut za rudarstvo i metalurgiju Bor. [13] Morley C., Snowden V., and Day D. (1999). Financial impact of resource/reserve uncertainty. The Journal of The Southern African Institute of Mining and Metallurgy , 293-302. [14] (2021). PERC Reporting Standard ...Petar Marković, Dejan Stevanović, Mirjana Banković. "Uticaj geološke neizvesnosti u razvoju rudarskih projekata" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
-
Uticaj proširenja nuklearne elektrane “Pakš” (Mađarska) na resurse podzemnih voda u Vojvodini
Bojan Hajdin, Dušan Polomčić (2016)... poses a significant issue which requires extensive assessment of all aspects of the impact of such a decision on the enviroment in the given region due to the proximity to the territory of the Republic of Serbia. The paper is concerned with the impact of the future nuclear complex's functioning on g ...
... experience in the area of groundwater reserve formation in the region of the Pannonian Basin, its utilization and protection. Furthermore, an impact assessment has been given, relative to the strategic solution for future water supply system of the northern and north-western Bačka region, according to ...
... HAJDIN i dr. UTICAJ PROŠIRENJA NUKLEARNE ELEKTRANE „PAKŠ“ (MAĐARSKA)... 552 TEHNIKA – RUDARSTVO, GEOLOGIJA I METALURGIJA 67 (2016) 4 SUMMARY THE IMPACT OF THE ENLARGEMENT OF THE NUCLEAR POWER PLANT „PAKS“ (HUNGARY) ON GROUNDWATER RESOURCES IN VOJVODINA The current decision of the neighbouring Republic ...Bojan Hajdin, Dušan Polomčić. "Uticaj proširenja nuklearne elektrane “Pakš” (Mađarska) na resurse podzemnih voda u Vojvodini" in Tehnika 66 no. 5, Beograd : Savez inženjera i tehničara (2016): 777-786. https://doi.org/10.5937/tehnika1604545H
-
Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... Movement of Hazardous Waste and its Disposal (2/09), Law on Environmental Protection, Law on Strategic Environmental Impact Assessment, Law on Environmental Impact Assessment, Law on Integrated Prevention and Control of Pollution, Law on Integrated Prevention and Control of Pollution, Law on ...
... environmental protection. Some of these laws are: • Law on Environmental Impact Assessment (SP 2004a), • „Lawon lntegrated Prevention and Control of Environmental Pollution (SP 2004b), • „Lawon Strtegic Environmental Impact Assessment (SP 2004c), • „Lawon Environmental Protection (SP 2009b), • „Lawon ...
... their impact on surface water quality.” Environmental Science and Pollution Research 20, no. 11 (2013): 7615-7626. Belojevic, Goran, Katarina Paunovic, Branko Jakovljevic, Vesna Stojanov, Jelena Ilic, Vesna Slepcevic, and Mica Saric-Tanaskovic. “Cardiovascular effects of environmental noise: research ...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)
-
Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
-
A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System
This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFISMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić. "A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System" in Energies, MDPI AG (2023). https://doi.org/10.3390/en16072958
-
Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... Keywords: recultivation, reclamation, revitalisation, coal mining, sustainable development 1. INTRODUCTION Mining activity has a large-scale impact on the environment. Coal mining has been quite pronounced considering the topographical changes of the green space that would directly affect the ...
... improvement and economic development of mining regions [4]. Jackson and Hobbs, 2009 [5], defined mine rehabilitation has to compensate the ecological impact - up to date as possible and depending on the intensity/level of disturbance. In most cases it is simply impossible to restore the historical systems ...
... [6-8]. 2. REQUIREMENTS OF LAND RECULTIVA TION This paper is part of research applied to the coal open pit Drmno, which has as general objectives as impact of mining in the area, as well as ecological conversion solutions for coal open pit Drmno (one of the open pits of Kostolac Basin Mining Basin), ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
-
Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
-
The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... security assessment for SC1. Analogous to the procedure described, the degree of affiliation of the energy security assessment to the appropriate LV can be identified for the remaining five combined scenarios (SC2–SC6), as shown in Table 37. Table 37. Identification of energy security assessment affiliation ...
... Security Assessment of the Serbian Natural Gas Sector Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian ...
... n, an energy security assessment is made. The output data of the fuzzy set is defuzzificated throughout the identification procedure. The “best-fit” and “gravity center“ methods are used to identify the output data from the fuzzy composition. Using these methods, the assessment of energy security is ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
-
Open Educational Resources in Serbia
... and entrepreneurial institutions. 2.8 Impact There are many efforts in Serbia to broaden the impact of OER initiatives. Number of OER increases rapidly, but users still belong to a group of enthusiasts or well-educated self-learners. OER impact could be also analyzed according to given ...
... within the global community. Also, some of the created OERs are translated into English, so that they might have produced an impact on users abroad. OER impact on national community in Serbia is still in progress. OER initiative (oer.rs) with realized projects and enthusiastic teachers and ...
... for open education are introduced and supported but need additional activities to be widely adopted • Impact on stakeholder groups are evident and future OER implementation will give bigger impact on every group. REFERENCES Blagojevic, M., & Milosevic, D. (2014). Massive open online courses: ...Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević. "Open Educational Resources in Serbia" in Current State of Open Educational Resources in the “Belt and Road” Countries, Springer Singapore (2020). https://doi.org/10.1007/978-981-15-3040-1_10
-
Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations
Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović. "Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations" in International Scientific Conference - Sinteza 2024, Belgrade, 16. maj 2024, Singidunum University (2024). https://doi.org/10.15308/Sinteza-2024-288-294
-
Long-term planning methodology for improving wood biomass utilization
The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković. "Long-term planning methodology for improving wood biomass utilization" in Energy, Elsevier BV (2019). https://doi.org/10.1016/j.energy.2019.03.105