Претрага
286 items
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The influence of petrographic characteristics on polished stone value for dolerite-gabbro aggregates from Serbia
Đokić Olivera, Šarić Kristina, Matović Vesna, Erić Suzana, Vuković Nikola, Cvetković Vladica. "The influence of petrographic characteristics on polished stone value for dolerite-gabbro aggregates from Serbia" in 5. Croatian geological Congress with international participation, Abstracts book – Osijek 2015, Zagreb:Croatian Geological Survey (2015): 66-66
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Dispersion Modeling of Particulate Matter in Surface Lead and Zinc Mine Šuplja Stijena
Nikola Lilić, Vladimir Milisavljević, Uroš Pantelić, Ljiljana Kolonja, Dragan Medenica. "Dispersion Modeling of Particulate Matter in Surface Lead and Zinc Mine Šuplja Stijena" in Mining and Environmental Protection, 5th International Symposium, Beograd:Rudarsko-geološki fakultet, Center for Environmental Engineering (2015): 366-375
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Did the Western and the Eastern Vardar ophiolites originate through a single intra-oceanic subduction? Insight from numerical modelling
Nikola Stanković, Taras Gerya, Vesna Cvetkov, Vladica Cvetković. "Did the Western and the Eastern Vardar ophiolites originate through a single intra-oceanic subduction? Insight from numerical modelling" in Gondwana Research, Elsevier BV (2023). https://doi.org/10.1016/j.gr.2023.07.005
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Listvenite from Serbia as Gemstone Resource
Simić Vladimir, Šarić Kristina, Miladinović Zoran, Andrić Nevena, Vuković Nikola. "Listvenite from Serbia as Gemstone Resource" in Abstracts & Field Guides / 11th Workshop on Alpine Geological Studies & 7thEuropean Symposium on Fossil Algae, Schladming, September 2013 Published in Berichte der Geologischen Bundesanstalt no. 99, Wien:Geologische Bundesanstalt (2013): 86-86
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Assessment of maturation changes of humic coal organic matter – insights from different approaches.
Vuković Nikola, Životić Dragana, Mendonça Filho Joao Graciano, Kravić-Stevović Tamara, Hámor-Vidó Maria, Oliveira Mendonça Joalice, Stojanović Ksenija, (2016)Vuković Nikola, Životić Dragana, Mendonça Filho Joao Graciano, Kravić-Stevović Tamara, Hámor-Vidó Maria, Oliveira Mendonça Joalice, Stojanović Ksenija,. "Assessment of maturation changes of humic coal organic matter – insights from different approaches." in International Journal of Coal Geology 154-155, Amsterdam, Netherlands:Elsevier BV (2016): 213-239. https://doi.org/10.1016/j.coal.2016.01.007
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Towards understanding the crustal response of slab tearing and detachment: inferences from the Dinarides-Hellenides transition
Nikola Ranđelović, Liviu Matenco, Maja Maleš, Nemanja Krstekanić, Uroš Stojadinović, Branislav Trivić, Marinko Toljić (2023)Nikola Ranđelović, Liviu Matenco, Maja Maleš, Nemanja Krstekanić, Uroš Stojadinović, Branislav Trivić, Marinko Toljić. "Towards understanding the crustal response of slab tearing and detachment: inferences from the Dinarides-Hellenides transition" in EGU General Assembly 2023, Vienna, Austria 23–28 April 2023, Copernicus GmbH (2023). https://doi.org/10.5194/egusphere-egu23-7378
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Tektonska evolucija severoistočnih Dinarida
... evolucija severoistočnih Dinarida Nikola Ranđelović, Branislav Trivić, Nemanja Krstekanić, Bojan Kostić, Uroš Stojadinović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Tektonska evolucija severoistočnih Dinarida | Nikola Ranđelović, Branislav Trivić, Nemanja ...
... deformation are represented by S1 foliation, folded into rare mm to dm-scale isoclinal and asymmetric folds with significant variability in fold-axis orientation. The second observed deformation phase is related to Middle Jurassic to Eocene convergent processes between Adriatic and European derived ...
... Basin. The ductile structural pattern related to this extensional phase is characterized by dominant E- dipping S3 foliation. Moreover, a top to E ductile shear zone with quartz sigma clasts is observed on the eastern slopes of the Bukulja Mts. In contrast to the ductile structures, the late-phase brittle ...Nikola Ranđelović, Branislav Trivić, Nemanja Krstekanić, Bojan Kostić, Uroš Stojadinović. "Tektonska evolucija severoistočnih Dinarida" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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New insights into tectonic relations between the Eastern Vardar Ophiolitic and Serbo-Macedonian units: Inferences from a microtectonic study in central Serbia
Maja Maleš, Nikola Ranđelović, Nemanja Krstekanić, Bojan Kostić, Nikolina Ćirić, Uroš Stojadinović (2023)Источно-вардарски офиолити, Српско-македонска јединица, микротектонска анализа, каснојурска обдукција, пост-обдукционе деформацијеMaja Maleš, Nikola Ranđelović, Nemanja Krstekanić, Bojan Kostić, Nikolina Ćirić, Uroš Stojadinović. "New insights into tectonic relations between the Eastern Vardar Ophiolitic and Serbo-Macedonian units: Inferences from a microtectonic study in central Serbia" in Geološki anali Balkanskoga poluostrva (2023). https://doi.org/10.2298/GABP230130002M
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Estimation of the Remaining Life-Time of Power Transformers Depending on the Type of Loading
Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić. "Estimation of the Remaining Life-Time of Power Transformers Depending on the Type of Loading" in 9th International Conference Mining and Environmental Protection MEP 2023, 24. – 27. May 2023, Sokobanja, Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia
Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents the role of noise impact assessment and control in large-scale surface mining operations. Mine planning develops the model of mining operations, ore excavation, and waste dumping scheduling and processing rates, including spatial distribution of mining activities. Such a level of mine planning requires an environmental impact assessment study. This can be achieved ...Uros Pantelic, Petar Lilic, Aleksandar Cvjetic, Nikola Lilic. "Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su15031798
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Approach to operational mine planning: Case study Tamnava West
... of Thermal power plant Nikola Tesla, main user of coal from Tamnava - West. By agreement between power plant and Kolubara Basin, delivered coal should have lower calorific value (LCV) in range 6700 kJ/kg 5%. The goal of operational planning of excavation is to achieve this range as much ...
... power plant owner is interested to know in advance the quality of coal to be burnt which should meet maximal efficiency of power plant and the environmental regulations. Coal quality control between the mine site and the utility plant is a complex problem owing to the variable nature of coal ...
... at the mining block level is especially important to have enough of in situ data, and to conduct quality operational planning. The importance of operational planning for coal quality control is stressed by Stevanović et. al. 7. Also due to the complex nature of coal operational planning, ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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Stanje i perspektivnost vodosnabdevanja Obrenovca i naselja opštine posle poplava, 2014. godine
Obrenovac i okolna naselja su tokom 2014. godine zbog poplava u Srbiji pretpeli veliku materijalnu štetu, a pored brojnih privrednih preduzeća ozbiljno je bio ugrožen i sistem vodosnabdevanja. Izvorište „Vić bare“ za vodosnabdevanje grada u selu Zabrežje, na Savi, u potpunosti je potopljeno, a vodovodna mreža, u pojedinim delovima već veoma stara, dodatno je oštećena. Poslednjih nekoliko decenija kao glavni razlozi za probleme u vodosnabdevanju Obrenovca isticane su nedovoljne rezerve podzemnih voda na izvorištu. Novijim istraživanjima utvrđene su rezerve ...... zdravlje iz Beograda i postojeća laboratorija na izvorištu. Za razmatranje odnosa vodostaja reke (mereno na vodomernoj letvi kod termoelektrane „Nikola Tesla A“) i nivoa podzemnih voda i hidraulčkim odnosima pre i nakon poplava, izvršena je uporedna analiza podataka o vodostajima Save i podataka ...
... su na izvorištu prikupljani u periodu neposredno nakon poplava do danas. Rezerve podzemnih voda na ovom izvorištu, njegova potencijalnost i sa tim u vezi njegova perspektivnost, duži niz godina predstavljaju jedno od najznačajnijih pitanja u planovima budućeg razvoja opštine. Iz ovoga je proizašla ...
... periodu za- hvatane su količine 230 – 320 l/s vode, a u letnjim mesecima potrošnja je i znatno viša, što je posledica jednog od najvećih problema, a to je neracionalna potrošnja vode. Pored ovog, probleme za službu vodo- voda predstavlja i kvalitet vode, zbog povišenih sadr- žaja gvožđa i mangana ...Bojan Hajdin, Dušan Polomčić, Dragoljub Bajić. "Stanje i perspektivnost vodosnabdevanja Obrenovca i naselja opštine posle poplava, 2014. godine" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2017). https://doi.org/10.5937/tehnika1705675H
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A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)
... KCB’s lignite (brown coal). A daily extraction rate of as much as 100,000 tons of coal ensures reliable operation of the thermal power plants Nikola Tesla and Veliki Crljeni. KCB has been the object of extensive research, the most important being the studies conducted by: Jagodić Krunić and Jovičić ...
... hydraulic conductivity found to range from 6x10-5 m/s to 6x10-4 m/s. The intermediate aquifer comprised of sands is found in the extended area of Tamnava - West Field, in a part where deposited sands lie between two coal beds. These sands extend beyond the mine to the northwest, where they join ...
... within the municipalities of Lajkovac and Ub, near the villages of Kalenić, Mali Borak, Radljevo and Skobalj. To the west and south, the mine borders on the exploratory field Radljevo, and to the east on Tamnava - East Field. The northern boundary is natural, where the coal bed lenses out. Figure ...Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin. "A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)" in Underground Mining Engineering no. 29, Belgrade : University of Belgrade - Faculty of mining and geology (2016): 43-54
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Application of softwares for drilling and blasting
U današnje vreme softveri se sve više primenjuju u rudarstvu kroz eksploataciju mineralnih sirovina, projektovanje rudnika, u obavljanju različitih operacija na terenu i sl. Među softverima za rudarstvo, postoje softveri za specifične rudarske operacije, kao što su operacije bušenja i miniranja. Ovi procesi su veoma važni u eksploataciji čvrstih mineralnih sirovina, jer predstavljaju najjeftiniji i najefikasniji oblik fragmentacije stenske mase. Kroz rad, predstavljeni su neki od softvera u kombinaciji sa modernim tehnologijama, koje se koriste širom sveta i koje ...Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković. "Application of softwares for drilling and blasting" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2019). https://doi.org/10.5937/podrad1934077m
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Status and tendencies under development and application of underground coal gasification-UCG
Podzemna gasifikacija uglja u Svetu poslednjih decenija doživljava znatnu ekspanziju u istraživanju i razvoju zbog uveliko iskorišćenih ležišta uglja i loših ekoloških efekata (pri sagorevanju u TE) na životnu okolinu. Srbija ima znatne rezerve uglja, a kada bi se za PGU koristile samo vanbilansne rezerve i otkopni ostaci bilansnih, jasno je kakvi bi bili ekonomski (a i energetski i ekološki) efekti. U radu su sagledane aktivnosti u Svetu na tom planu, pa smatramo da ima smisla i potrebe za primenu ove ...David Petrović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić. "Status and tendencies under development and application of underground coal gasification-UCG" in International Conference “Energy and Ecology Industry EEI2018”, Beograd : Akademija inženjerskih nauka Srbije (AINS) (2018)
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Flyrock Induced by Blasting in Surface Mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Минирање представља и даље најефикаснији и најјефтинији начин експлоатације великих количина чврстих минералних сировина на површинским коповима. Енергија експлозије се користи за фрагментацију чврсте стенске масе до захтеване гранулације. Поред позитивних ефеката минирања, постоје и одређени нежељени ефекти сваког процеса минирања који се могу јавити, а то су: потреси тла, разлетање комада стене, ваздушни удари, отровни и загушљиви гасови и прашина. Разлетање комада стене је неконтролисано избацивање фрагмената одминиране стенске масе и представља један од главних извора материјалне ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock Induced by Blasting in Surface Mining" in 8th Balkan Mining Congress, Belgrade, September 28-30, 2022, Mining Institute Ltd, Belgrade (2022)
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Epidotizacija sanidina u kvarclatitima Grota
Propilitska alteracija je veoma česta u gornjokredno-tercijarnim vulkanitima Srbije. Kvarclatiti Grota, otkriveni na dubini od oko 550 m u jednoj od istražnih bušotina su holokristalaste porfirske strukture sa fenokristalima sanidina dimenzija i do 1,5 x 2 cm. Optičkim ispitivanjima su u kvarclatitu potvrdjeni i elementi sitaste, pojkilitske i glomeroporfirske strukture. Kao fenokristali prisutni su sanidin, plagioklas, kvarc, biotit i amfiboli. Sekundarni minerali su hlorit, epidot, coisit, Fe-hidroksidi, redak kalcit i ilit. U fenokristalima sanidina se zapažaju „lepeze“ izduženih kristala ...Danica Srećković-Batoćanin, Suzana Erić, Nikola Novičić, Nikola Pašajlić, Natalija Batoćanin. "Epidotizacija sanidina u kvarclatitima Grota" in III Congress of Geologists of Bosnia and Herzegovina with international participation, Neum, 21. – 23.09.2023, Ilidža : Udruženje/udruga geologa u Bosni i Hercegovini (2023)
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Epidotized sanidine in quartzlatites from Grot
Propilitska alteracija je veoma česta u gornjokredno-tercijarnim vulkanitima Srbije. Kvarclatiti Grota, otkriveni na dubini od oko 550 m u jednoj od istražnih bušotina su holokristalaste porfirske strukture sa fenokristalima sanidina dimenzija i do 1,5 x 2 cm. Optičkim ispitivanjima su u kvarclatitu potvrdjeni i elementi sitaste, pojkilitske i glomeroporfirske strukture. Kao fenokristali prisutni su sanidin, plagioklas, kvarc, biotit i amfiboli. Sekundarni minerali su hlorit, epidot, coisit, Fe-hidroksidi, redak kalcit i ilit. U fenokristalima sanidina se zapažaju „lepeze“ izduženih kristala ...Danica Srećković-Batoćanin, Suzana Erić, Nikola Novičić, Nikola Pašajlić, Natalija Batoćanin. "Epidotized sanidine in quartzlatites from Grot" in Book of Abstracts, III Congress of Geologists of Bosnia and Herzegovina with international participation, Neum, 21. – 23.09.2023, Ilidža : Udruženje/udruga geologa u Bosni i Hercegovini (2023)
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The influence of rainfall factors on soil resistance to erosion
Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek (2024)Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek. "The influence of rainfall factors on soil resistance to erosion" in EGU General Assembly 2024, Vienna, Austria, Apr 14–19, 2024, Copernicus GmbH (2024). https://doi.org/10.5194/egusphere-egu24-1137
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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 ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović. "Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting" in The 55th International October Conference on Mining and Metallurgy, Mining and Metallurgy Institute Bor (2024). https://doi.org/10.5937/IOC24077M