Претрага
985 items
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Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje
U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.... pit mine Tamnava–West field Marko Lazić[footnoteRef:1], Filip Miletić[footnoteRef:2], Milena Lekić2, Veljko Rupar2, Željko Petrović[footnoteRef:3], Lazar Žujović[footnoteRef:4] [1: PD PRO TENT Površinski kop Tamnava–Zapadno polje] [2: Univerzitet u Beogradu – Rudarsko–geološki fakultet] [3: JP E ...
... bagera SRs2000.32/5+VR angažovanih na površinskim kopovima Elektroprivrede Srbije” Tehnika, Savez inženjera i tehničara Srbije, 2019.; [4] Samanta, B., Sarkar, B., & Murkherjee, S.K. (2002). Selection of opencast mining equipment by a multi-criteria decision-making process. Mining Technology, 111(2), 136-142; ...
... decision making for the choice problem in mining and mineral processing: Applications and trends. Expert [8] Bazzazi, A. A., Osanloo, M., & Karimi, B. (2011). Deriving preference order of open pit mines equipment through MADM methods: Application of modified VIKOR method. Expert Systems with Applications ...Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović . "Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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Phytoecological analysis of primary and secondary colonization on copper mine wastes (Bor, Serbia)
Ranđelović Dragana, Jovanović Slobodan (2013)Ranđelović Dragana, Jovanović Slobodan. "Phytoecological analysis of primary and secondary colonization on copper mine wastes (Bor, Serbia)" in Abstracts of 11th Symposium on Flora of Southeastern Serbia and Neighbouring Regions, Niš:University of Niš, Biological society Dr Sava Petrović (2013): 36
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Značaj eksploziva i savremeni sistemi za iniciranje
Kričak Lazar (2011)Kričak Lazar. "Značaj eksploziva i savremeni sistemi za iniciranje" in Organizovano predavanje u okviru Udruženja inženjera u rudarstvu, Bor, Srbija:Udruženje inženjera u rudarstvu (2011)
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Utvrđivanje racionalnih parametara bušenja trokonusnim krunama u zavisnosti od karakteristika radne sredine
Lazar Kričak (1991)Lazar Kričak. Utvrđivanje racionalnih parametara bušenja trokonusnim krunama u zavisnosti od karakteristika radne sredine, Beograd:Rudarsko-geološki fakultet, 1991
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Istraživanje uticaja parametara radne sredine na izbor tipa trokonusne krune
Lazar Kričak (1997)Lazar Kričak. Istraživanje uticaja parametara radne sredine na izbor tipa trokonusne krune, Beograd:Rudarsko Geološki Fakultet, 1997
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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... evolution of the NE Dinarides: Constraints from low‐temperature thermochronology, Global and Planetary Change, v. 103, p. 19–38. Stojanović, K., B. Jovančićević, D.Vitorović, Y. Golovko, G. Pevneva, and A. Golovko, 2007, Evaluation of saturated and aromatic hydrocarbons oil–oil ...
... Izveštaji o palinološkim ispitivanjima jezgara iz bušotina Vojvodine, Fondovska dokumentacija NIS Naftagas, Novi Sad. Šolević, T., K. Stojanović, B. Jovančićević, G. Mandic, J. Schwarzenbauer, and D. Vitorović, 2006, Multivariate statisticalmethods applied to interpretation of ...
... Literatura 159 (Velebit oil field, SE Pannonian Basin, Serbia), J. Serb. Chem., v. 71 (7) p. 745–769. Šolević, T., K. Stojanović, J. Bojesen‐Koefoed, H. P. Nytoft, B. Jovančićević, and D. Vitorović, 2008, Origin of oils in the Velebit oil‐gas field, SE Pannonian Basin, Serbia ...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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Distribution of major and trace elements in the Kovin lignite (Serbia)
Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...... Belgrade, ISSN 0372 9966. ŽIVOTIĆ, D., WEHNER, H., OSTERTAGHENNING, C., ERCEGOVAC, M., SCHEE DER, G., JOVANČIĆEVIĆ, B., CVETKOVIĆ, O., GRŽETIĆ, I., MILIVOJEVIĆ, J., STOJANOVIĆ, K. & ŠAJNOVIĆ, A. (2007): The organic geochemical, petro graphical and palynological composition of coal from the Kovin ...
... ŠAJNOVIĆ, A. & STOJANOVIĆ, K. (2016): Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia.– International Journal of Coal Geology, 168, 80–107. doi: 10.1016/j.coal.2016.07.008 MITROVIĆ, D., ĐOKOVIĆ, N., ŽIVOTIĆ, D., BECHTEL, A., CVETKOVIĆ, O. & STOJANOVIĆ, K. (2017): ...
... A and B. One of the most important normal faults is located in the western part of the B field (Fig. 1). 3. SAMPLES AND METHODS 3.1. Sample collection The fortyfour lignite samples were collected from four bore holes, GD601 and GD603 from the A field, and KB79 and KB 91 from the B field, ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06
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English for Geology Students. 2
Lidija Beko (2023)... thanks to the comic artist Mijat Mijatović, whose masterful works brought the textbook to life. I would also like to express my gratitude to Ana Stojanović, who was a valuable collaborator on a large number of tasks, processing and conceptual solutions. Without her, this textbook would not have its ...
... 32737 . OL - .Be. ..0 ... . MM a o -jyO. 0a -M Reading Comprehension...........i a \rarmmar Spof.. . e a av dMe de e a e de a a la Ioarcik89 olo c o b djo o BRIIO OB .y JD - IIIA K Geological Wonders..........i. a Profession – Young Crystallographer................... Geology Mystery Files ... e ...Lidija Beko. English for Geology Students. 2, Belgrade : The Faculty of Mining and Geology, 2023
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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
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Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas
During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović. "Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas" in 31st International Conference Ecological Truth & Environmental Research-EcoTER'24, Sokobanja, 18-21. jun 2024, Bor : Tehnički fakultet u Boru (2024)
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Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla
Lana Mitrović (2024)U radu su prikazane najznačajnije osobine prirodnog gasa, uključujući hemijski sastav, jednačine sagorevanja i termodinamičke karakteristike koje predstavljaju osnovu za dalje razumevanje rada. Prikazane su količine prirodnog gasa na evropskom trţištu prema zemlji porekla, kao i njihove zasebne hemijske i termodinamičke karakteristike.Kvalitet prirodnog gasa u Republici Srbiji je posebno poglavlje u radu u okviru kog je detaljnjije opisano snabdevanje Republike Srbije prirodnom gasom, kao i zahtevani kvalitet.Na kraju, obuhvatajući sve prethodno navedeno, prikazan je postupak rešavanja Studije slučaja koja ...Lana Mitrović . Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla, 2024
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Енергетска транзиција система даљинског грејања - могућности и изазови
Марија Живковић, Дејан Ивезић (2023)Највише енергије у зградама у Србији троши се на загревање простора. Због тога ће системи даљинског грејања имати важну улогу у процесу транзиције целокупног енергетског сектора. Мере и активности морају да буду усмерене и на потрошњу и производњу енергије. У раду је дат преглед потенцијала различитих обновљивих и алтернативних извора енергије, који се могу користити за производњу топлотне енергије. Приказани резултати су приказани са различитим нивоом детаљности, у зависности од расположивих података, а који могу да служе као ...Марија Живковић, Дејан Ивезић . "Енергетска транзиција система даљинског грејања - могућности и изазови" in Стручно-научна конференција ТОПС 2023, Златибор, Србија, мај 2023., Шабац : Пословно удружење "Топлане Србије" (2023)
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model
The Majdanpek open pit mine south district is currently active mining prospect of copper ore exploitation in eastern Serbia. Its depth is approaching the termination depth and occurrences of large-scale instabilities and global instability of the final pit slope is possible. These can generate catastrophic mass movement inside an area that encloses a regional road route and the Pek River bed which is channelled along the outer contour of the pit. The displacements that were noted in early 2023, in the ...Miloš Marjanović, Stefan Milanović, Nikola Simić, Lazar Kričak. "Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model" in Regional Symposium on Landslides in the Adriatic-Balkan Region, Belgrade, 15-18th May 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/10.18485/resylab.2024.6.ch46
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Spatial distribution of major and trace elements in artificial lakes in Serbia: health risk indices and suitability of water for drinking and irrigation purposes
Goran Marković, Aleksandar Ž. Kostić, Nebojša Đ. Pantelić, Radojka Maletić, Jana Štrbački, Jovan Cakić, Lazar Kaluđerović, Biljana P. Dojčinović, Angelo Maria Giuffrè, Jelena B. Popović-Djordjević (2023)Lakes and reservoirs are the main water resources for household, irrigation, and industrial use. Hence, it is necessary to control water pollution and have reliable information on water quality, which refers to its suitability for a particular purpose. The main objective of this study was to evaluate the suitability of water for drinking and irrigation purposes from ten artificial lakes on the territory of the Republic of Serbia. The physicochemical parameters were determined using standard analytical methods, whereas the ...Goran Marković, Aleksandar Ž. Kostić, Nebojša Đ. Pantelić, Radojka Maletić, Jana Štrbački, Jovan Cakić, Lazar Kaluđerović, Biljana P. Dojčinović, Angelo Maria Giuffrè, Jelena B. Popović-Djordjević. "Spatial distribution of major and trace elements in artificial lakes in Serbia: health risk indices and suitability of water for drinking and irrigation purposes" in Environmental Monitoring and Assessment, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s10661-023-11740-6
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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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Valorization of non-balanced coal reserves in Serbia for underground coal gasification
David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...... Измењено: 2023-10-16 12:33:22 Valorization of non-balanced coal reserves in Serbia for underground coal gasification David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić Дигитални репозиторијум Рударско-геолошког факултета ...
... факултета Универзитета у Београду [ДР РГФ] Valorization of non-balanced coal reserves in Serbia for underground coal gasification | David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić | Thermal Science | 2019 | | 10.2298/TSCI190725390P http://dr ...
... 23, No. 6B, pp. 4067-4081 4067 VALORIZATION OF NON-BALANCED COAL RESERVES IN SERBIA FOR UNDERGROUND COAL GASIFICATION by David T. PETROVIĆ“, Lazar M. KRIČAK”, Milanka N. NEGOVANOVIĆ”, Stefan V. MILANOVIĆ”, Jovan R. MARKOVIĆ”, Nikola Z. SIMIĆ”, and Ljubisav S. STAMENIĆĆ" 2 4D Konsalting, Belgrade ...David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić. "Valorization of non-balanced coal reserves in Serbia for underground coal gasification" in Thermal Science (2019). https://doi.org/10.2298/TSCI190725390P
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Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom
Saša D. Bošković (2016-09-09)Otkopavanje materijala rotornim bagerom je veoma sloţen fiziĉko-mehaniĉki proces. Pokazatelji efektivnosti tog procesa zavise od velikog broja raznovrsnih ĉinilaca od kojih se posebno mogu istaći: fiziĉko-mehaniĉke karakteristike materijala koji se otkopava, reţim rada bagera i izbor tehnoloških parametara bloka, odreska i reza, geometrije vedrica i zuba itd. Poseban problem se javlja kod otkopavanja materijala povećane ĉvrstoće, što je ĉest sluĉaj na našim površinskim kopovima. Dimenzionisanje specifiĉne sile kopanja bagera prema manjim masama izuzetno ĉvrstog materijala je neracionalno i rešenje ...rotorni bager, parametri reza, otpor na kopanje, dinamika bagera, kapacitet, optimizacija, specifična potrošnja energije... Ugljevik, VIII MeĊunarodna konferencija Nemetali, Banja Vrujci [59] Stojanović D. (1975), Analiza tehnoloških i proizvodnih mogućnosti bagera glodara SRs-1200·24/4+VR, Rudarsko-geološki fakultet, Beograd [60] Stojanović D., Ignjatović D., Ivković S. (1992), Uticaj geometrije vedrica i istrošenosti ...
... (5.9) o,respektivn 3,1,2k 2,3,1j 1,2,3i za xxc , yy b, yxyxa , yx1 yx1 yx1 2 1 A , bc c0 0b A2 1 B , B B B B , )ycxba( A2 1 N , N0N0N0 0N0N0N N jkikjijkkji 33 22 11 ii i i i321 iiii 321 321 ...
... je gde 111111 3 m m T e Podela ploĉe preko odnosa kraće strane i debljine glasi: a) b/t < 5(8) - veoma debela ploĉa, b) b/t = 5(8)8(10) - debela ploĉa, c) b/t = 8(10)100 - tanka ploĉa i d) b/t > 100 - veoma tanka ploĉa (ljuska). Pretpostavke klasiĉne teorije tanke ploĉe i ljuske su: ...Saša D. Bošković. "Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-09)
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. KALUĐEROVIĆ (2018)Lazar M. KALUĐEROVIĆ. Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine, Beograd:Rudarsko Geološki Fakultet, 2018
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Definisanje geotehničkih karakteristika terena za potrebe izgradnje stanice za snabdevanje gorivom “OMV” u Trsteniku
Milica Dutina (2024)U ovom Završnom radu prikazana su istraživanja na osnovu kojih su urađeni grafički dio, proračun nosivosti i proračun analize slijeganja terena za potrebe izgradnje benzinske stanice sa pratećim objektima. Detaljno je analiziran prodajni objekat,čelični rezervoar za gorivo i znak. Za proračun graničnog opterećenja korišćena je metoda Mayerhofa, dok je analiza slijeganja urađena Konsolidacionom metodom slijeganja za prodajni objekat i čelični rezervoar za gorivo, a za temelj znaka po principu slijeganja i rotacije krutih temelja - Gorbun Posadov. Sve dobijene ...terenska istraživanja, laboratorijska ispitivanja, geotehnička istraživanja, geotehnički model terena, osnovne tehničke karakteristike, analiza slijeganja, proračn nosivosti... Saradnici: Dr Laslo Čaki, dipl.inž.geol. Datum: Razmera: Prilog: Nemanja Stojanović, teh. Oktobar, 2007 1:500 GEOTEHNIČKI PRESJEK TERENA lII - I' PRODAJNI OBJEKAT ZNAK ČELIČNI REZERVOAR ZA GORIVO 169I I169 168 B-4 -5 168 I (167.5m) (167.5m) _ AI - T A I I u a I i -11111 I T I T I T I ...
... Centrična tačka A : B =0.75; L= 0.75; L/B= 1 z= 0; Ao„o= qaop = 50 kPa z=0.65 m; z/B = 0.87; IzZ = 0.I8; Ac =4 · 0.19 · 50= 38 kPa z = 3.55 m; z/B = 4.73; Iz =0.02; Ao;=4 · 0.02 · 50=4 kPa Ugaona tačka B : B= 1.5; L= 1.5; /B= 1 z=0; Aod= 0.25 · 50 = 12.5 kPa z=0.65 m; z/B = 0.43; Iz =0.24; ...
... GORIVO Df=4.3m B x L= 10.7 x 15.6m qaop = 66.52 kPa Naponi od dopunskog opterećenja: Centrična tačka A : B =5.35;L= 7.8; L/B = 1.46 z= 0; Aow = qaop= 66.52 kPa zZ=1.65 m; z/B = 0.308; Iz = 0.245; Aox=4 · 0.245 · 66.52 = 65.19 kPa Ugaona tačka B : B = 10.7; L= 16.6; L/B = 1.46 z=0; Ao«= ...Milica Dutina. Definisanje geotehničkih karakteristika terena za potrebe izgradnje stanice za snabdevanje gorivom “OMV” u Trsteniku, 2024