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Упит dcterms_subject_txt:additional energy engagement

388 items

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... all underground coal mines in Public Company for Underground Coal Exploitation (PCUCE) is just around 0.6 Mtpa, making their contribution to the energy sector quite insignificant. It should be noted that PCUCE operates 8 mines (with 11 pits) and one non-producing mine whose workers are hired as ...
    ... during which PCUCE was a part of JP EPS, and [3], study financed by European Agency for Reconstruction whose beneficiary was Ministry of Mining and Energy, RoS. These studies identified the need for investment in some of the mines to improve their technical performance and also limiting potential of ...

  • Sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja

    Predrag Z. Dabić (2022)
    Predmet i ciljevi naučnog istraživanja ove doktorske disertacije su sinteza i strukturna karakterizacija novih cezijumskih i kalijumskih silikata sa elementima retkih zemalja. Istraživanja su izvedena u okviru sistema SiO2–REE2O3–XF, gde REE predstavlja trovalentni katjon elementa retkih zemalja (Sc, Y, Sm, Eu, Gd, Ho, Er, Tm, Yb, Lu), dok X predstavlja jednovalentni katjon alkalnih metala (K, Cs). Rad na disertaciji bio je fokusiran na sintezu monokristala, određivanje kristalnih struktura, kao i na kristalografsko i kristalohemijsko ispitivanje sintetisanih monokristala. Monokristali su sintetisani ...
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu, elementi retkih zemalja

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... Vojvodina and accompanying database" was realized by University of Belgrade, Faculty of Mining and Geology for Vojvodina Provincial Secretariat for Energy and Mineral Resources. The aim was to secure safe and reliable data needed for recultivation of all abandoned mines in national parks and other protected ...
    ... province of Vojvodina and accompanying database" realized by University of Belgrade, Faculty of Mining and Geology, for the Provincial Secretariat for Energy and Mineral Resources of Vojvodina, and pointed out the usefulness, practical value and advantage of using WebGIS applications for accomplishing ...
    ... Blagojević B., Prodanović J.: Gis Application In The Management And Administration Of Exploratory And Exploitation Permit. 3rd International Symposium Energy Mining 2010 Banja Junakovic, Apatin, Serbia, 08 - 11. September 2010., Edited by: Ivica Ristović, Milivoj Vulić. Faculty of Mining and Geology, 2010 ...

  • The oil industry and climate changes

    Dejan Radivojević (2020)
    Uprkos tome što je problem klimatskih promena poznat dugi niz godina i dalje veliki broj ljudi poistovećuje pojam vremenskih prilika sa klimom ne uzimajući u obzir različitu dužinu njihovog trajanja. U medijima se vrlo često mogu naći katastrofična predviđanja vezana za zagrevanje naše planete usled neodgovornog ponašanja čoveka. Sa druge strane geolozi znaju da je tokom geološke prošlosti naše planete bilo mnogo toplijih intervala od današnjih kao i da ti intervali nisu neminovno rezultovali masovnim izumiranjem živog sveta već su ...
    vremenske prilike, klima, naftne kompanije, strategije, Srbija
    ... approach like other companies in Europe and region. The company has transformed to Energy Company that adopted its business strategy to sustainable development by reconstructing of Pančevo Refinery and starting two energy projects - the construction of the combined gas-steam power plant Pančevo and ...

  • Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery

    Maja Milošević, Biljana Đorđević, Mihovil Logar (2020)
    калцит, сирова глина, традиционална керамика, Злакуса
    ... range of 20-1100%C. The scanning electron microscopy (SEM) study was performed with a JEOL JSM-6610LV SEM coupled with an Oxford Energy Dispersive X-Max 20 mm? SDD energy dispersive X-ray spectrometer (EDXS) to study the particle morphology and to assess the grain size. The grain-size distribution ...
    ... (western Serbia). Particle-size distribution, plasticity, X-ray fluorescence spectroscopy, X-ray powder diffraction, scanning electron microscopy/energy-disper- sive X-ray spectrometry and differential thermal analysis techniques were applied. The mineral phases identified in the raw clay sample are ...
    ... M., Logar M., Kaluđerović L. & Jelić 1. (2017) Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry. Energy Procedia, 125, 650–655. Mojsilović S., Baklajić D., Đoković l. & Avramović V. (1971) Tumač za list Titovo Užice K. 30-49 (M. Dimitrijević, D. Dragić ...

  • Primena programa UVSZ pri zaštiti od miniranja

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić (2021)
    Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske
    Program UVSZ, miniranje, potres, zaštita životne sredine
    ... ju podataka merenja na ra unaru. Klju ne re i: Program UVSZ, miniranje, potres, zaštita životne sredine. Abstract: Application of explosive energy i.e. blasting operation, represents the main way of hard raw materials exploitation in mining industry. Very favorable techno-economic indicators ...
    ... prezentaciju podataka merenja na racunaru. Kljucne reci: Program UVSZ, miniranje, potres, zastita Zivotne sredine. Abstract: Application of explosive energy i.e. blasting operation, represents the main way of hard raw materials exploitation in mining industry. Very favorable techno-economic indicators are ...
    ... pdf [2] Baulovi , J., Pandula, B., Kondela, J., & Prekopová, M. (2019). Optimizing the seismic effects of blasting in quarries by timing, High Energy Materials, 11 (2), 48 − 62. DOI: 10.22211/matwys/0178 ISSN 2083-0165 [3] Coltrinari, G. (2016). Detecting seismic waves induced by blast operations ...

  • Sinteza i karakterizacija nanoprahova u CeO2-Bi2O3 sistemu

    Marija D. Prekajski (2014-04-04)
    Nanoprahovi kristalnih faza iz serije čvrstih rastvora u pseudo-binarnom sistemuCeO2-Bi2O3 sintetisani su primenom jednostavne i ekonomične samopropagirajućemetode na sobnoj temperaturi korišćenjem nitrata metala i natrijum-hidroksida kaopolaznih supstanci. Osim krajnjih članova niza, CeO2 i niskotemperaturne polimorfnemodifikacije α-Bi2O3, sintetisani su i čvrsti rastvori nominalnog sastava Ce1-xBixO2-δ,gde je x = 0,1; 0,2; 0,3; 0,4; 0,5; 0,6; 0,7; 0,8; 0,9. Rezultati proučavanja metodomrendgenske difraktometrije na polikristalnom materijalu i ramanske spektroskopskeanalize pokazali su da su sintetisani prahovi sa nižim sadržajem bizmuta (x = 0,1 ...
    nanostrukturni materijali, čvrsti rastvori, CeO2, Bi2O3, rendgenskadifraktometrija praha, Ritveldova metoda, mikrostrukrurna analiza

  • A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor

    Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić (2023)
    železnica, prekogranični teretni saobraćaj, ARIMA, LSTM, SSA

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... Programme of research in the field of technological development for the period 2011-2014. REFERENCES 1 International energy outlook 2011, US Energy Information administration 2 Ignjatović D., Knežević D., Kolonja B., Lilić N., Stanković R, 2007, Upravljanje kvalitetom uglja ...
    ... technology. Acknowledgement This paper was realized as a part of the project "Improvement of Lignite Opencast Technology in Order to Increase Energy Efficiency and Occupational Safety" (TR 33039) financed by the Ministry of Education and Science of the Republic of Serbia within the framework ...

  • Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)
    Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...
    optimization, O-Pitblast, drilling, blasting, fragmentation size

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... Estimates of total oil & gas reserves in the world, future of oil and gas companies and smart investments by E & P companies in renewable energy sources for future energy needs. In fnmfermafional petroleum technology conference (p. D011S009R002). IPTC. [87] Weng, Z., Jowitt, S.M., Mudd, G.M. and Haque ...
    ... Office of Policy (PO). [103] Kamran, M., Raugei, M. and Hutchinson, A., 2023. Critical Elements for a Successful Energy Transition: A Systematic Review. Renewable and Sustainable Energy Transition, p.100068. [104] Barakos, G., Dyer, L. and Hitch, M., 2022. The long uphill journey of Australia”s ...
    ... lighting technology and its sustainable availability. Renewable and Sustainable Energy Reviews, 77, p.899-915. [151] Alves Dias, P., Bobba, S., Carrara, S. and Plazzotta, B., 2020. The role of rare earth elements in wind energy and electric mobility. European Commission: Luxembourg. [152] Azambuja, G ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... figures self-assembly allow water/oil separation, Colloid. Surface.A, 415, 394-398. BP (2010), Statistical review of world energy. BP (2011), Statistical Review of World Energy. Bratskaya S., Avramenko V., Schwarz S., Philippova I., (2006) Enhanced flocculation of oil-in-water emulsions by hyd ...
    ... 88 Darwish M.A., Alotaibi S., Alfahad S. (2008), On the reduction of desalting energy and its cost in Kuwait, Desalination, Volume 220, Issues 1–3, 483- 495. Darwish M.A. (2007) Desalting fuel energy cost in Kuwait in view of $75/barrel oil price, Desalination, Volume 208, Issues 1–3, 306-320 ...
    ... from crude oils and model systems studied by high-pressure NIR spectroscopy, Energy & Fuels,16,1287-1295. Nazmul H., Rahmani G., Tadeusz D., Jacob M. (2005). Settling properties of asphaltene aggregates, Energy & Fuels, 19,1099 -1108. Nikolaou M. (2013) Computer-aided process engineering in ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... figures self-assembly allow water/oil separation, Colloid. Surface.A, 415, 394-398. BP (2010), Statistical review of world energy. BP (2011), Statistical Review of World Energy. Bratskaya S., Avramenko V., Schwarz S., Philippova I., (2006) Enhanced flocculation of oil-in-water emulsions by hyd ...
    ... 88 Darwish M.A., Alotaibi S., Alfahad S. (2008), On the reduction of desalting energy and its cost in Kuwait, Desalination, Volume 220, Issues 1–3, 483- 495. Darwish M.A. (2007) Desalting fuel energy cost in Kuwait in view of $75/barrel oil price, Desalination, Volume 208, Issues 1–3, 306-320 ...
    ... from crude oils and model systems studied by high-pressure NIR spectroscopy, Energy & Fuels,16,1287-1295. Nazmul H., Rahmani G., Tadeusz D., Jacob M. (2005). Settling properties of asphaltene aggregates, Energy & Fuels, 19,1099 -1108. Nikolaou M. (2013) Computer-aided process engineering in ...

  • Komparacija metoda XRF i ICP-MS na uzorcima uglja i produkata sagorevanja

    Branko Kostić, Dejan Prelević, Sabina Kovač, Ksenija Eraković, Dragana Životić (2022)
    Ugljevi niskog ranga – ligniti u Republici Srbiji predstavljaju glavnu energetsku sirovinu koja se koristi za proizvodnju električne energije. Rudarstvo u Srbiji doprinosi bruto dodatoj vrednosti sa 1,8% (2020; https://publikacije.stat.gov.rs/). Sagorevanjem ugljeva niskog ranga u termoelektranama generišu se velike količine elektrofilterskog pepela i pepela, koje često predstavljaju jedan od izvora zagađenja životne sredine usled sadržaja toksičnih elemenata. Dalja upotreba produkata sagorevanja zavisi od njihovog sastava i sadržaja toksičnih mikroelemenata. Svakodnevno sagorevanje lignita u termoelektranama uslovljava konstantan monitoring potencijalno toksičnih ...
    ugalj, produkti sagorevanja, XRF, ICP-MS

  • Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example

    Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska (2020)

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... Ministry. The approvals and permits are issued by the Ministry of Mining and Energy, while all approvals and permits for the territory of the Autonomous region of Vojvodina are issued by the Regional Secretariat for Energy and Mineral Resources. In each case, the necessary documents are the same. ...
    ... Serbian) 57. Ministry of Mining and Energy of the Republic of Serbia, Geology and Mining. Available online: http://gis.mre.gov.rs/vi- sios/Srbija (accessed on 16 April 2021). 58. Republic of Serbia, Autonomous Province of Vojvodina, Provincial Secretariat for Energy, Construction and Traffic, Geological ...
    ... exploration, as presented in the example of kaolin deposit ex- ploration process in the Georgia-South Carolina kaolin mining district [69]. The additional tricky question of correlation between the Serbian equivalent of meas- ured resources and proven/probable CRIRSCO reserves is that in Serbia there ...

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... geothermal or balneotherapeutical purposes: thermal water is used for recreation and medical purposes in several spas in both countries, while geothermal energy is more efficiently used in Hungary. The number of wells that tap deeper aquifer layers with thermal waters is over 100 on the Hungarian side, while ...
    ... Serbia the main tapping is from the second and third aquifer layers, for the water supply of the main Hungarian consumer Szeged and for geothermal energy, the deeper acluifer layers (fourth and fifth) are intensively used. Some of the concrete proposals of the SUDEHSTRA project include [9]: . centralize ...

  • Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?

    Alena Zdravković, Maja Milošević, Ivana Jelić (2021)
    ... for SEM, Faculty of Mining and Geology, University of Belgrade, using a JEOL JSM-6610LV scanning electron microscope, coupled with an X-Max energy-dispersive spectrometer (Oxford Instruments). The small amount of the skim was gently removed from the surface and glued onto a graphite strip ...