Претрага
312 items
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Ograničenja primene optimizacionih algoritama u slučaju kopova
Proces optimizacije površinskih kopova, kao sastavni deo strateškog planiranja, veoma je važan sa stanovišta ostvarivanja maksimalnih efekata proizvodnje. To je složen zadatak koji vrlo često podleže vrlo strogim geometrijskim i drugim praktičnim rudarskim ograničenjima. Ova ograničenja u posebno su izražena na površinskim kopovima uglja, te u značajnoj meri mogu povećati stepen neizvesnosti rudarskog projekta, odnosno izazvati neželjena dejstva u pogledu profitabilnosti poslovanja. Iz tog razloga, veoma je važna primena savremenih optimizacionih alata, koji u značajnoj meri mogu olakšati celokupan ...... 2023, https://www.ica.org/coal2018/, accessed 25.09.2020 [3] „Wharton C.: Add value to your mine through improved long term scheduling. Whittle north American strategic mine planning conference, Colorado, pp 1-13, 2000 [4] Stevanović D.: Optimizacija i planiranje površinskih kopova stohastičkim ...
... Through Mine Coal Quality Planning and Control. Thermal Science, 22(1B), pp.721-733, 2017 Benndorf J.: Investigating the variability of key coal quality parameters in continuous mining operations when using stockpiles. Advances in Orebody Modelling and Strategic Mine Planning I. AusiMM, 2011 Benndorf ...
... Benndorf J.: Planning for reliable coal quality delivery considering geological variability: A case study in polish lignite mining. Journal of Quality and Reliability Engineering, 2015 Stevanović D., Banković M., Pešić Georgladis M., Stanković R.: Approach to operational mine planning: Case study ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Petar Marković, Dejan Ranković. "Ograničenja primene optimizacionih algoritama u slučaju kopova" in XIV Međunarodna konferencija OMC 2020, Zlatibor, Srbija, 14-17. oktobar 2020., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2020)
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The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... Ministry of Education, Science and Technological Development of Serbia, Project No. 43004, as well as by Ministry of Environ- ment, Mining and Spatial planning of Serbia. References [1] Arnorsson, S., Gunnlaugsson, E., New Gas Geothermometers for Geothermal Exploration – Calibration and Application, Geochim ...
... °C, about 7.5 tons of fuel oil or 82.6 MWh of heat en- ergy may be saved per heating season (assuming the fuel oil heat capacity was 40 MJ/kg. Methodology Samples of groundwater were collected for this research during 2011-2012 in the loca- tions selected on the basis of the physical and chemical ...
... °C, about 7.5 tons of fuel oil or 82.6 MWh of heat en- ergy may be saved per heating season (assuming the fuel oil heat capacity was 40 MJ/kg. Methodology Samples of groundwater were collected for this research during 2011-2012 in the loca- tions selected on the basis of the physical and chemical ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
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Postojeće stanje i budući trendovi u preventivnoj zaštiti podzemnih voda Srbije
Vladimir Živanović (2022)Podzemne vode predstavljaju osnovni, a u mnogim zemljama i jedini resurs za javno vodosnabdevanje stanovništva tako da zaštita podzemnih voda predstavlja bitan preduslov za njihovo dugotrajno i održivo korišćenje. Kako u svetu, tako i u Srbiji, zaštita podzemnih voda se najvećim delom svodi na primenu preventivnih mera zaštite. Kod planiranja zaštite većih prostora sve više se koriste metode za ocenu ranjivosti podzemnih voda. Njihova primena je posebno naglašena u karstnim područjima zato što se tu izdvajaju delovi terena sa ...Zaštita podzemnih voda, karte ranjivosti podzemnih voda, karta hazarda, karte rizika od kontaminacije, monitoring podzemnih voda, SrbijaVladimir Živanović. "Postojeće stanje i budući trendovi u preventivnoj zaštiti podzemnih voda Srbije" in Zbornik radova XVI srpskog Simpozijum o hidrogeologiji sa međunarodnim učešćem, Univerzitet u Beograd, Rudarsko-geološki fakultet (2022)
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Using Metadata For Content Indexing Within An OER Network
Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)... and entrepreneurial knowledge,by enabling higher education institutions to publish various academic learning resources e.g. video lectures, course planning materials, or thematic content, whereasenterprises can present different forms of expert knowledge, such as case studies, expert presentations ...
... and entrepreneurial knowledge,by enabling higher education institutions to publish various academic learning resources e.g. video lectures, course planning materials, or thematic content, whereasenterprises can present different forms of expert knowledge, such as case studies, expert presentations on ...
... http://virtuni.eas.sk/rocnik/ 2008/pdf/aid000262.pdf, 2008. [6] Chan, L.M., Zeng, M.L., Metadata Interoperability and Standardization – A Study of Methodology Part I, Achieving Interoperability at the Schema Level. D- Lib Magazine, Vol. 12(6), 2006. http://www.dlib.org/dlib/june06/chan/06chan.html ...Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci. "Using Metadata For Content Indexing Within An OER Network" in Proceedings of the Fifth International Conference on e-Learning, eLearning 2014, September 2014, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2014)
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Просторна анализа епикарста у оквиру карстног система источног дела Суве планине
Епикарст представља највиши део стенске масе који је изложен карстификацији, при чему су главне карактеристике епикарста акумулирање подземне воде и стварање услова за формирање концентрисаних токова у подини ове зоне. У досадашњој пракси истраживања епикарста углавном су коришћене индиректне методе: даљинска детекција, анализа хидрограма карстних врела, хидрохемијске и изотопске анализе, па чак и опити трасирања, док је са друге стране јако мали број истраживача изучавао епикарст директним теренским истраживањима. У раду je приказана иновирана методологија истраживања епикарста, која користи ...Бранислав Петровић, Зоран Стевановић, Вељко Мариновић, Снежана Игњатовић. "Просторна анализа епикарста у оквиру карстног система источног дела Суве планине" in XVI српски симпозијум о хидрогеологији са међународним учешћем, Универзитет у Београду, Рударско-геолошки факултет (2022)
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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
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Economic And Technical Aspects Of Transformer Operation
Aleksandrović Snežana, Jović Mihajlo (2016)Aleksandrović Snežana, Jović Mihajlo. "Economic And Technical Aspects Of Transformer Operation" in Energy Sources, Part B: Economics, Planning and Policy 11 no. 1, United Kingdom:Taylor & Francis (2016): 26-31. https://doi.org/10.1080/15567249.2011.567225
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Foundation reinforcement by micropiles
Ćorić Slobodan, Rakić Dragoslav (2015)Ćorić Slobodan, Rakić Dragoslav. "Foundation reinforcement by micropiles" in iNDiS 2015: Planning, design, construction and renewal in the civil engineering – International Scientific Conference no. 13, Novi Sad:Univerzitet u Novom sadu Fakultet tehničkih nauka (2015): 382-390
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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... implementation in heat pumps (HP) systems, whose operation is based on simple and proven technology (Hep- basli et al. 2014). Sewage waste heat is more long-term resilient comparing to industrial or excess heat (Averfalk et al. 2017). Despite all quoted advantages, wastewater heat is still a mostly unused ...
... potential of waste- water heat. The proposed methodology can be applied on the levels of city, region, or a state, taking into account specifics of heat and electricity generation and the structure of pri- mary energy supply. In addition, the methodology provides a possibility for the estimation of ...
... projected future would have more desirable values compared to the values that correspond to the current state of district heating systems. Methodology The methodology for the determination of technical poten- tial of sewage wastewater heat, availability of heat energy and evaluation of the effects of ...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
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Thermal properties of soil
Djurić Tina, Rakić Dragoslav, Čaki Laslo, Ćorić Slobodan. "Thermal properties of soil" in 14 International Scientific Conference: Planning, Design, Construction and renewal in the Civil Engineering, Novi Sad: (2018): 1045-1052
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Thermal properties of soil
Djurić Tina, Rakić Dragoslav, Čaki Laslo, Ćorić Slobodan. "Thermal properties of soil" in 14 International Scientific Conference: Planning, Design, Construction and renewal in the Civil Engineering, Novi Sad: (2018): 121-121
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The Potential of and Barriers to Renewable Energy Sources in Serbia
Ivezić Dejan, Đajić Nenad, Živković Marija. "The Potential of and Barriers to Renewable Energy Sources in Serbia" in Energy Sources, Part: B Economics Planning and Policy 8 no. 2, USA:Taylor and Francis (2013): 162-170
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Landslide types and processes in Serbia
Abolmasov Biljana, Hadži-Niković Gordana. "Landslide types and processes in Serbia" in Croatia-Japan Project “Risk identification and land-use planning for disaster mitigation of landslides and floods in Croatia”, 1st Project Workshop: International experience. Dubrovnik, Croatia, 22-24 November 2010 1, Zagreb, Hrvtaska:Japan International Cooperation Agency (JICA) (2010): 39-39
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On perspetives of semi-automated landslide assessment
Marjanović Miloš, Zečević Snežana, Basarić Irena. "On perspetives of semi-automated landslide assessment" in Landslide and flood hazard assessment : аbstract proceedings / 1st Regional Symposium on Landslides in the Adriatic-Balkan Region [and] 3rd Workshop of the Croatian-Japanese Project Risk Identification and Land-Use Planning for Disaster Mitigation o, Zagreb, Croatia:City of Zagreb, Emergency Management Office (2013): 64-64
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Statistical approach in land-use suitability analysis of the Belgrade city suburbs
Petrović Rastko, Marjanović Miloš, Đurić Uroš, Šušić Vladimir, Abolmasov Biljana, Zečević Snežana (2013)Petrović Rastko, Marjanović Miloš, Đurić Uroš, Šušić Vladimir, Abolmasov Biljana, Zečević Snežana. "Statistical approach in land-use suitability analysis of the Belgrade city suburbs" in Conference Proceeding of 2nd International Scientific Conference Regional Development, Spatial Planning and Strategic Governance -RESPAG 2013 1 no. 1, Belgrade, Serbia:IAUS (2013): 517-528
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Geotechnical aspects of three dimensional stability analysis of landslides
Ćorić Slobodan, Čaki Laslo, Rakić Dragoslav, Ubiparip Boško, Berisavljević Zoran. "Geotechnical aspects of three dimensional stability analysis of landslides" in Planning, design, construction and renewal in the civil engineering : proceedings / 12 International Scientific Conference INDIS 2012, Novi Sad, 28-30 November 2012, Novi Sad:Faculty of Technical Sciences, Department of Civil Engineering and Geodesy (2012): 361-368
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Energy Resources in the Republic of Serbia: Development Policy
Jovančić Predrag, Kolonja Božo, Ignjatović Dragan, Tanasijević Miloš, Madžarević Aleksandar, Krstić Vojislav (2014)Jovančić Predrag, Kolonja Božo, Ignjatović Dragan, Tanasijević Miloš, Madžarević Aleksandar, Krstić Vojislav. "Energy Resources in the Republic of Serbia: Development Policy" in Journal of Energy Sources, Part B: Economics, Planning and Policy, :Taylor & Francis (2014). https://doi.org/DOI: 10.1080/15567249.2014.896
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Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia
Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetra... respectively, and solar is in the last place. Taking into consideration the results, it can be con cluded that biom ass h as a certain priority in planning n ew pr oduction capacities to m eet dom est ic electr icity n eeds. ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia" in Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020., Faculty of Mechanical Engineering and Naval Architecture, Zagreb (2020)
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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
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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 ...... Adaptive open-pit mining planning under geological uncertainty. Resources Policy , 72. [2] (2012). Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code). [3] Benndorf, J., Dimitrakopoulos, R. (2013). Stochastic long-term production scheduling ...
... the dominant factors. Geological uncertainty plays a key role in mining and can significantly affect resource and reserve estimation, exploitation planning, economic profitability and risk management. This uncertainty cannot be eliminated, but with the application of adequate standards and laws, it ...
... (grade of iron in the ore). The results were generated in the Whittle software package. Keywords: geological uncertainty, risk, pit optimization, planning 1. Uvod Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja. Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog ...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)