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736 items
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Методологија интегралне анализе сценарија енергетског развоја
Александар Маџаревић (2019)енергетска безбедност, сценарио развоја, фази логика, сигурност снабдевања, доступност, расположивост, природни гас... АНАЛИЗЕ СЦЕНАРИЈА ЕНЕРГЕТСКОГ РАЗВОЈА БИОГРАФИЈА Александар Маџаревић je рођен 21. априла 1987. године у Ивањици. Похађао је Гимназију „Венејамин Маринковић“ у Ивањици, општи смер, коју је завршио 2006. године, а том приликом му је додељена диплома „Вук Караџић“ за постигнут изузетан општи успех током ...
... H e rf in d a h l- Hi rs ch m an и нд ек са (H HI ) к ој и ук аз уј е на ни во ко нц ен тр ац иј е сл об од но г тр ж иш та . HH ин де кс се ра чу на ка о зб ир кв ад ра та пр оц ен ту ал но г уч еш ћа ( p i ) по је ди ни х ко ...
... максимални радни притисак: pmax=75 bar, • максимални проток гаса: o при повлачењу из ПСГ Б. Двор Q=415.000 m3/h (10 милиона m3/дан) и o при утискивању у ПСГ Б. Двор Q=230.000 m3/h (5,5 милиона m3/дан). Током 2017. године, максимални технички капацитет утискивања је био 2,7 милиона кубних метара ...Александар Маџаревић. Методологија интегралне анализе сценарија енергетског развоја, Рударско-геолошки факултет, 2019
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Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine
Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić. "Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945617
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Proceedings of the Bulgarian Academy of Sciences, Bulgaria, 28. maj 2024 , Prof. Marin Drinov Publishing House of BAS (Bulgarian Academy of Sciences) (2024). https://doi.org/10.7546/CRABS.2024.07.10
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Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
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Zbirka rešenih zadataka iz termodinamike
Marija Živković, Aleksandar Madžarević (2023)... Skica uz zadatak 39: Prikaz procesa u p-v dijagramu 116 ZBIRKA REŠENIH ZADATAKA IZ TERMODINAMIKE 56. Dimni gas molarnog sastava 12% CO 2 , 6% H 2 O , 5% O 2 i 77% N 2 , počet- nog stanja 0,9 MPa i 1000 °C izentropski ekspandira u turbini do pritiska 0,1 MPa, a zatim se izobarski hladi ...
... toplotu vodi tem- perature 25 °C, koja se pri stalnom pritisku 0,2 MPa zagreva do stanja su- vozasićene pare. Za maseni protok dimnih gasova 15000 kg/h, izračunajte snagu gasne turbine i maseni protok rashladne vode. REŠENJE: Molarni sastav je jednak zapreminskom sastavu, pa je: Gasna konstanta smeše ...Marija Živković, Aleksandar Madžarević. Zbirka rešenih zadataka iz termodinamike, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2023
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Primena termografije u rudarstvu
Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragan Ignjatović, Dragutin Jovković, Filip Miletić (2019)Danas, gotovo da nema oblasti u nauci i tehnici u kojoj se Infracrvena termografija ne primenjuje kao metoda za lociranje i praćenje zagrejanih objekata ili tela, beskontaktnu procenu temperature površina, i nedestruktivno ispitivanje materijala. U radu su prikazane mogućnosti i perspektive primene ove metode u oblasti rudarstva.... proseku, za rešavanje ovakvih problema potrebno je 4 do 6 h, što na kopu srednje veličine znači da se ne bi otkopalo materijala reda veličine nekoliko 104 t. U slučaju blagovremenog otkivanja greške ICT metodom, isti problem može rešiti za manje od 1 h. Nakon sprovedenih mera održavanja opreme, stručnjaci ...
... K., Inovative Run Flat System. Journal of KONES Powertrain and Transport, Vol. 22 (1) 299-306, 2015 [17] Ulah I., Yang F., Khan R., Liu L., Yang H., Gao B. & Sum K., Predictive Maintenance of Power Substation Equipment by Infrared Thermography Using a Machine-Learning Approach. Energies. Vol ...Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragan Ignjatović, Dragutin Jovković, Filip Miletić. "Primena termografije u rudarstvu" in IX Međunarodna konferencija UGALJ 2019, Zlatibor, Srbija, 23-26. oktobar 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
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Indeksi kontrole održavanja i korišćenja rotornog bagera
Razvoj površinske eksploatacije se u velikom stepenu zasniva na svestranoj mehanizaciji rudarskih radova. Kako bi se zadovoljili potrebni kapaciteti, neophodna je primena savremene mehanizacije, velikih kapaciteta i pouzdanosti u radu. Naime, sa stepenom povećanja mehanizovanosti radova smanjuje se broj zaposlenih radnika, povećava produktivnost rada, smanjuju troškovi po jedinici proizvoda, a samim tim i povećava ekonomičnost površinske eksploatacije. Predmet istraživanja su rotorni bageri SRs 1200 koji predstavljaju samohodne mašine kontinuiranog dejstva namenjene za otkopavanje jalovine i korisne supstance na površinskim ...Jovana Mitrović, Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić. "Indeksi kontrole održavanja i korišćenja rotornog bagera" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Split-Desktop software for the analysis of fragment size distribution of blasted rock mass
Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović. "Split-Desktop software for the analysis of fragment size distribution of blasted rock mass" in 9th International Conference Mining and environmental protection, Sokobanja, Serbia, 24 – 27. May 2023, Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... Water Supp. 7 (1989) 11 35. N. Huppert, M. Würtele, H. H. Hahn, Fresenius J. Anal. Chem. 362 (1998) 529 36. J. Albaiges, F. Casado, F. Ventura, Water Res. 20 (1986) 1153 37. D. Kolpin, E. Furlong, M. Meyer, E. M. Thurman, S. Zaugg, L. Barber, H. Buxton, Phar- maceuticals, Hormones, and Other Organic ...
... sodium chloride solution. Heavy metal determination in sediments Prior to heavy metal analysis, the sediment samples were dried at 110 °C for 24 h. After drying, the sediments were subjected to mechanical homogenization by grounding to a powder. Then, aliquots of 0.5 g of dry sediments were digested ...
... 330 (2004) 249 13. P. Literathy, F. Laszlo, Water Sci. Technol. 32 (1995) 125 14. A. K. T. Kirschner, G. Kavka, B. Velimirov, R. Mach, R. Sommer, A. H. Farnleitner, Water Res. 43 (2009) 3673 15. V. Micic, T. Hofmann, Environ. Pollut. 157 (2009) 2759 16. A. Saliot, C. C. Parrish, N. Sadouni, I. B ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Geochronological and geochemical studies on crystalline rocks from the central Serbo-Macedonian massif with implications on its pre-Alpine evolution
Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2014)Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko. "Geochronological and geochemical studies on crystalline rocks from the central Serbo-Macedonian massif with implications on its pre-Alpine evolution" in Proceedings of the XX CBGA Congress, Tirana, Albania, 23 – 29 September 2014 Jan-14, Tirana, Albania:Buletini i Shkencave Gjeojoglike (2014): 195-195
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Protholithic age and geochemistry of magmatic rocks from the Serbo-Macedonian massif (south Serbia, southwest Bulgaria and east Macedonia)
Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2012)Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko. "Protholithic age and geochemistry of magmatic rocks from the Serbo-Macedonian massif (south Serbia, southwest Bulgaria and east Macedonia)" in Geophysical Research Abstracts 14 no. EGU2012-5638-1, Max-Planck-Str. 13, 37191 Katlenburg-Lindau, Germany:Copernicus GmbH (2012)
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Preliminary structural and geochemical data from the Serbo-Macedonian Massif (South Serbia, Southwest Bulgaria and Macedonia)
Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran (2011)Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran. "Preliminary structural and geochemical data from the Serbo-Macedonian Massif (South Serbia, Southwest Bulgaria and Macedonia)" in Geophysical Research Abstracts 13 no. EGU2011-9202-1, Max-Planck-Str. 13, 37191 Katlenburg-Lindau, Germany:Copernicus GmbH (2011)
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Unravelling of continued magmatic activity along the Serbo-Macedonian massif since the Precambrian (south Serbia, southwest Bulgaria and Macedonia)
Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran (2011)Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran. "Unravelling of continued magmatic activity along the Serbo-Macedonian massif since the Precambrian (south Serbia, southwest Bulgaria and Macedonia)" in Abstract Volume, 9th Swiss Geoscience Meeting, Zurich, 11th – 13th November :Swiss Tectonics Studies Group of the Swiss Geological Society (2011): 13-13
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More than 500 Ma of magmatic and tectonic evolution of the Serbo-Macedonian Massif (south Serbia, southwest Bulgaria and east Macedonia)
Antić Milorad, Peytcheva Irena, von Quadt Albrecht, Kounov Alexandre, Trivic Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2012)Antić Milorad, Peytcheva Irena, von Quadt Albrecht, Kounov Alexandre, Trivic Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko. "More than 500 Ma of magmatic and tectonic evolution of the Serbo-Macedonian Massif (south Serbia, southwest Bulgaria and east Macedonia)" in Diversity of copper and gold deposits in the Eastern Europe Balkan, Carpathian and Rhodopean belts: tectonic, magmatic and geochronological investigations, SCOPES Project - Conference and Field Trip: Macedonia and Serbia, Štip, Macedonia: (2012)
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Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia
Emo Marton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov. "Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia" in 18th Meeting of the Central European Tectonic Studies Group (CETEG) & 25th Meeting of the Czech Tectonic Studies Group, 22-25th April, 2021, Terchová, Slovakia, Department of Geological Sciences, Masaryk University in cooperation with the Czech Geological Survey, IPE MU Brno and UK Praha (2021)
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Fuzzy expert analysis of the severity of mining machinery failure
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 ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy expert analysis of the severity of mining machinery failure" in Applied Soft Computing, Elsevier BV (2020). https://doi.org/10.1016/j.asoc.2020.106459
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Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata
Dejan N. Radivojević (2014-12-30)Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika... D BgH SfD ZR D SkH ZR D BgH SfD D rD ZRDBgHSfDZRDSkHZRDBgHSfDBCH G jH ZgD ZR D BgH SfD ZR D SkH ZR D BgH SfD PnD ZR D Bg H Sf D ZR D Sk H ZR D Bg H Sf D Ss D ShG Kontakt Zapadni Vardar - Dinaridi Kontakt jedinica Evropskog porekla - i Istočn Vardar Sava og a- šava Kontakt Istočni ...
... a Globigerinoides bisphericus u gornjem karpatu. Flora krečnjačkog nanoplanktona okarakterisana je sa Helicosphaera ampliaperta, H. carteri, H. mediterranea, Reticulofenestra pseudoumbilica, Sphenolithus heteromorphus i Pontosphaera multipora (Steininger et al., 1976; Švábenická ...
... melanthopsis, Valvata sulekiana, V. piscinalis, Lithoglyphus decipiens, Hydrobia sp. Poglavlje 5 Regionalno‐stratigrafski prikaz 62 /H. cf. pupula/ i H. slavonica) i gornji sa Vivipara structurata (u asocijaciji sa: Melanopsis lanceolata, M. pterochila, Bulimus oncophora i Unio ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
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Paleomagnetic evidence for post-collisional Miocene clockwise rotation in the Serbian segment of the Vardar Zone and the Danubicum
Vesna Lesić, Emő Márton, Vesna Cvetkov, Dragana Tomić. "Paleomagnetic evidence for post-collisional Miocene clockwise rotation in the Serbian segment of the Vardar Zone and the Danubicum" in 26th IUGG General Assembly Prague, Czech Republic, International Union of Geodesy and Geophysics (2015)
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Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu
Željko R. Cvetković (2013-11-18)Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara... ,F M ,D H M ,H M ,D Q ,M Q ,F ,H Q ,M ,F Q ,F ,M Q ,F ,M K-3 M G M Q ,G F, D F, M F A ,F Q F G F, M D ,G M ,D Q ,M A Q ,F Q ,F ,M Q ,F ,M F, M ,Q F, G ,M F, M ,D ,A K-2 C o M G M M Q ,G F F, M F, G H ,F ,C o Q F, M H ,G H ,F ,M ,C o Q ,M Q ,H ,F ,G Q ...
... 30 3,20 F 30 3,19 F 33 3,21 F,M 27 3,68 H,F,Co 19 3,07 G 21 3,00 M,F 25 3,07 G 183 3,35 Q,M 19 2,97 M 15 2,86 M,D 24 3,00 F 33 3,20 F,M 21 2,88 D,G 13 2,69 H 26 2,89 G,D 22 2,69 H,G 15 2,71 M 17 2,55 M,D 22 2,79 M 21 2,52 H,F,M,Co 19 2,59 G,M 19 2,51 M,H 20 2,69 G,D 21 2,46 Q,M 19 2,52 F,D 23 2 ...
... M ,D ,A G Q ,G F G ,F F Q H l F G F, H l Q ,F Q ,F Q ,F Q ,F F, H l Q ,F K-7 K-8 M C l M ,A F, D F, C l A ,F ,M Q F, A F, M ,A D H ,A ,M M ,C l Q ,M Q ,F Q ,F ,M Q ,F ,M Q ,F ,M K-6 M G F M Q ,G F, G F, A Q F, M G G F, A H ,G M Q ,F ,M Q ,F Q ,A ,F ,M ...Željko R. Cvetković. "Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-18)