Претрага
637 items
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Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event
Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco. "Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event" in Historical Biology (2023). https://doi.org/10.1080/08912963.2023.2190757
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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 ...... Krovina Goryag ____Seam BE2 SeamDEI & |- upijerog Moja ieam 66 ? Seambi š | eamsB ka 6 š Fi Seam G4 Š šeamDO? r Pi Seam BAž d e -1 5 Seam P š 453 | : Seam6ž ž a Gž4 žemst E e Porina donjeć, Seamc' - -}1 ugenog sloja _— m 1 BROOMNSAA GUNA Slika 4. Karakterističan geološki profil i stratigrafska sekvenca ...
... gornju i donju granicu vrednosti koja može biti postignuta u praksi (C. Wharton, 2000). BOO 125 — 700 š = i00 600 m i 5 F-} s E 7 š 400 a s |_ e 50 300 | -1 || -i ' i 200 % > |. 25 ·š aooS * |LJ 5 10 • Generisane konture L_ -25 —— Vrednost kopa - najbolj slučaj |___] ...
... odmah nakon Poljske (IEA, 2018. god). Udeo uglja u proizvodji električne energije za pojedine evropske zemlje SRBIJA (64.1 %) I 10 i , % , , ., a e , , , , d, %, , , , QM . Slika 1. Procentualno učešće uglja u proizvodnji električne energije S obzirom na značaj površinskih kopova uglja, proces ...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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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Rudarsko-Geološki fakultet (2024)
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е − ...
... linguistic variable E (“very low”) is assigned a value of 0.08. At the same time, the linguistic variable E is defined as E = (1/1; 2/1; 3/0; 4/0; 5/0; 6/0; 7/0; 8/0; 9/0; 10/0) which is shown in both Figure 3 and expression 2. In this particular case, a specific value of linguistic variable E (“very low”) ...
... environment effect (E3) into environmental acceptability (E). The second level of synthesis is related to the composition of: Symmetry 2020, 12, 908 6 of 42 • Socioeconomic applicability (A), security of supply (S) and environmental acceptability (E) into energy security (ES). Socioeconomic applicability ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... Pre-Karst, Bosnian Flysch High Karst — Mh , Dalmatian zone\\ Ophiolites and accretionary prisms| - Eastern Vardar Op&utic Unit Sava zone e | Western Vardar Ophiolil 43582 phiolitic U Europe undifferen(iatš?%f;\š 40km Valjevo L449 -439 Kopaonik thrust sheet' 179 209 Fig. 1 Tectonic ...
... pattern similar to the map-scale structures. Inver- sion of fault-slip data (for methodology see Angelier 1984) implies roughly N-S compression and E-W extension for Dxy structures (Fig. 5). Du structures are map- and outcrop-scale normal faults that in some cases cut the Dxy strike-slip faults ...
... surfaces. d Subgrain formation and grain boundary migration of quartz during D, phase in thin section from outcrop 169 (Drina-Ivanjica Paleozoic). e Tight to isoclinal F, folds and related S, axial planar cleavage in the Northern Triassic unit at outcrop 198. f Thin section from the Southern Triassic ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
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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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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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A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area
Filip Anđelković, Dejan Radivojević (2018)... BADENSKIH SEDIMENATA BEOGRADA Filip Anđelković1, Dejan Radivojević2 1) Univerzitet u Beogradu, Rudarsko‐geološki fakultet, master student, e‐mail: filip.andjelkovic@rgf.rs 2) Univerzitet u Beogradu, Rudarsko‐geološki fakultet, Departman za regionalnu geologiju, Kamenička 6, 11000 Beograd ...
... IMENTS IN THE BELGRADE AREA Filip Anđelković1, Dejan Radivojević2 1) University of Belgrade, Faculty of Mining and Geology, master student, e‐mail: filip.andjelkovic@rgf.rs 2) University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Kamenička 6, 11000 Belgrade ...
... Anđelković, M., Anđelković, J., 1997. Badenski ciklusi u Srbiji. Geološki anali Balkanskog poluostrva, 61 (2), 1–13. Gruber, B., 1988. Mineraliensammlung E. W. Ricek. Oberösterreichischer Musealverein – Gesellschaft für Landeskunde, 80–110. 236 Marović, M., Toljić, M., Rundić, Lj., Milivojević, J ...Filip Anđelković, Dejan Radivojević. "A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example
Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska. "Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2020). https://doi.org/10.1007/978-3-030-60227-7_29
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Глаголи у кухињи и за столом
Цветана Крстев, Биљана Лазић (2015)У раду је приказано истраживање лексике на српском језику кулинарског домена које се заснива на коришћењу доменског корпуса, електронских лексичких ресурса, пре свега WordNet-а и морфолошких речника, и локалних граматика. Приказане су доменске специфичности ових ресурса, како се користе, и међусобно употпуњују. Посебно је приказано како се коришћењем доменског корпуса могу екстраховати глаголи специфични за кулинарски домен и описати начини њиховог коришћења. Дат је попис глагола са основним подацима који је добијен применом представљених метода.аутоматска обрада, коначни трансдуктори, електронски речници, семантичке мреже, локалне граматике, кулинарство... 1.539 1.576 придеви 121 0 глаголи 78 0 прилози 1 1 Табела 3 Одреднице из е-речника српског језика које припадају кулинарском домену према врстама речи У одељку 2 је укратко описано обогаћивање морфолошког е-речника српског језика за кулинарски домен како новим одредницама тако и новим маркерима ...
... облик трпног глаголског придева (у е-речнику придев – A–с додатим маркером +PP) коме претходи бројчани мерни израз, а следи му именица која означава храну којој може да претходи један или више придева; (б) облик трпног глаголског придева коме претходи глагол (у е-речнику V) у инфинитиву (кôд :W), ...
... именичке фразе у произвољном броју и падежу – у питању је граф A_N_glavniкоји је укључен у нашу локалну 16Више о садржају е-речника и локалним граматикама (Крстев 2008). Е-речници и локалне граматике имплементирани су под слободним системом за анализу корпуса Unitex(www-igm.univ-mlv.fr/~unitex/) ...Цветана Крстев, Биљана Лазић. "Глаголи у кухињи и за столом" in Научни састанак слависта у Вукове дане - Српски језик и његови ресурси: теорија, опис и преимене, Вол. 44/3, Београд : Међународни славистички центар (2015)
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Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)
Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad. "Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)" in Historical Biology (2023). https://doi.org/10.1080/08912963.2022.2122823
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Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)
Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, SerbiaLiubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)" in Stratigraphy and Geological Correlation, Pleiades Publishing Ltd (2020). https://doi.org/10.1134/S0869593820010037
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Kristalne strukture Cs2HoSi4O10F i Cs2TmSi4O10F
... bg.ac.rs XXVII 84 KRISTALNE STRUKTURE Cs2HoSi4O10F I Cs2TmSi4O10F P. Dabi a, a, A. a a Univerzitet u Beogradu, Rudarsko- bija e-mail: predrag.dabic@rgf.bg.ac.rs fokusiranog na sintezu novih kalijumskih silikata elemenata retkih zemalja dobijena su dva jedinjenja do tada ...
... Conference of the Serbian Crystallographic Society 85 CRYSTAL STRUCTURES OF Cs2HoSi4O10F AND Cs2TmSi4O10F P. Dabi a, S. a, A. Kr a a bia e-mail: predrag.dabic@rgf.bg.ac.rs During investigation focused on the synthesis of new potassium rare-earth elements silicates two compounds with ...Predrag Dabić, Sabina Kovač, Aleksandar Kremenović. "Kristalne strukture Cs2HoSi4O10F i Cs2TmSi4O10F" in XXVII konferencija Srpskog kristalografskog društva, Kragujevac, 16-17. septembar 2021., Beograd : Srpsko kristalografsko društvo (2021)
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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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Еоценска фауна југозападног дела Сирт басена (Либија)
Љупко Рундић, Мери Ганић (2020)Љупко Рундић, Мери Ганић. "Еоценска фауна југозападног дела Сирт басена (Либија)" in Записници Српског геолошког друштва, Српско геолошко друштво (2020)
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Softverski alati za korišćenje resursa za srpski jezik
Ivan Obradović, Ranka Stanković (2008)... devel- oped, stored and used in electronic, or e-format. Thus today e-texts and e-documents, sometimes bearing e-signatures are exchanged via e-mail, whereas e-dictionaries can be used for writing or analysis of e-texts. Electronic dictionaries or e-dictionaries, taken in their broadest sense, ...
... multilingual onto- logical dictionary of proper names Prolex should also be mentioned. Besides different types of e-dictionaries, the Group is engaged in developing other resourc- es, such as the e-corpus of Serbian, as well as parallel multilingual corpora composed of par- allel texts or bi-texts, usually ...
... tenance and further development of resources, as well as their integration, which makes the solu- tion of various tasks related to processing of texts in e-form much easier. One of the tools, with the acronym WS4LR (Workstation for Lexical Abstract: In this paper we describe how lexical resourc- es for ...Ivan Obradović, Ranka Stanković. "Softverski alati za korišćenje resursa za srpski jezik" in INFOteka: časopis za informatiku i bibliotekarstvo, Belgrade, Serbia : Zajednica biblioteka univerziteta u Srbiji (2008)
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Energetska efikasnost elektromotora na površinskim kopovima
Snežana Aleksandrović, Ilija Jeftenić (2023)Snežana Aleksandrović, Ilija Jeftenić. "Energetska efikasnost elektromotora na površinskim kopovima" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023. , Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181
Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)... 11000 Belgrade, Serbia e-mail: biljana.abolmasov@rgf.bg.ac.rs U. Đurić � J. Popović � M. Pejić � M. Samardžić Petrović � N. Brodić Faculty of Civil Engineering, University of Belgrade, Bul Kralja Aleksandra 84, 11000 Belgrade, Serbia e-mail: udjuric@grf.bg.ac.rs J. Popović e-mail: jpopovic@grf.bg ...
... bg.ac.rs M. Pejić e-mail: mpejic@grf.bg.ac.rs M. Samardžić Petrović e-mail: mimas@grf.bg.ac.rs N. Brodić e-mail: nbrodic@grf.bg.ac.rs © Springer Nature Switzerland AG 2021 K. Sassa et al. (eds.), Understanding and Reducing Landslide Disaster Risk, ICL Contribution to Landslide Disaster Risk Reduction ...
... and Jelisavac 2006). Most of the geotechnical investigations were performed for the Preliminary and Main Design for the Belgrade-Obrenovac Highway (E-763), and for the Umka urban plans and regulations. A summary of the geotechnical investigations results until 1995 can be found in Ćorić et al. (1996) ...Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić. "Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181" in Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-60196-6_14
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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... fosilni materijal koji ukazuje na sarmatsku starost: Quinqueloculina longirostra, Q. hauerina, Q. akneriana, Elphidium aculeatum, E. crispum, E. antoninum, E. josephinum, E. hauerinum, Porosononion granosum, Triloculina consobrina, T. austriaca, T. inflata, Aurila notata itd. Pored toga, M. Buljan ...
... 63–69. Pogácsás, Gy., R. E. Mattick, D. P. Elston, T. Hámor, A. Jámbor, L. Lakatos, M. Lantos, E. Simon, G. Vakarcs, L. Várkonyi, and P. Várnai, 1994, Correlation of seismo and magnetostratigraphy in southeastern Hungary. In: Teleki, P. G., Mattick, R. E., Kókay, J. (Eds.), Basin ...
... Dalrymple, R. W., Eriksson, P. G., Fielding, C. R., Fisher, W. L., Galloway, W. E., Gibling, M. R., Giles, K. A., Holbrook, J. M., Jordan, R., Kendall, C. G. St. C., Macurda, B., Martinsen, O. J., Miall, A. D., Neal, J. E., Nummedal, D., Pomar, L., Posamentier, H. W., Pratt, B. R., Sarg, J ...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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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