Претрага
794 items
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Еволуција напонског поља подручја Интерних Динарида у Србији током алпске орогенезе
Ana S. Mladenović (2015-06-19)Циљ ове докторске дисертације био је реконструкција еволуције напонског пољаЗемљине коре у подручју Интерних Динарида у Србији током Алпске орогенезе.Истраживања за потребе решавања овог проблема су изведена у два дела. Првидео обухватао је анализу палеонапона на дефинисаном подручју истраживања,док се други део односио на анализу тренутно активног поља напона у овом делуБалканског полуострва. Истраживано подручје обухвата унутрашњи деоДинарског орогеног појаса, који се простире у централној и западној Србији. Собзиром на циљ истраживања, истраживано подручје је дефинисано тако даобухвата три ...Интерни Динариди, анализа палеонапона, фокални механизмиземљотреса, напонско поље, тектоно-магматски догађајиAna S. Mladenović. "Еволуција напонског поља подручја Интерних Динарида у Србији током алпске орогенезе" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-06-19)
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Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes
Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre. "Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes" in Geomorphology, Elsevier BV (2022). https://doi.org/10.1016/j.geomorph.2022.108488
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Savremeni pristup rešavanja problema industrijskog otpada
Mariја Bošković (2024)Rad ukazuje na savremene metode rešavanja problema industrijskog otpada, sa posebnim fokusom na pećnu prašinu koja nastaje tokom metalurških procesa, poput proizvodnje čelika u elektrolučnim pećima. U radu se detaljno razmatra hemijski sastav pećne prašine, koja sadrži teške metale poput cinka, olova i kadmijuma, i naglašavaju ekološki izazovi koje predstavlja njeno zbrinjavanje. Takođe, analiziraju se metode tretmana i valorizacije pećne prašine, uključujući pirometalurške i hidrometalurške procese, pri čemu je poseban akcenat stavljen na reciklažu cinka iz pećne prašine. Dalje, ...... 23 3.2 Odvođenja gasova i prašine iz elektrolučne peći.........c.aaaaaaa a 25 3.3 Nastanak čestica u elektrolučnim pećima: Rađanje čestica ...l 27 3.4 _ Druge vrste elektrolučne prašine ... aaaoaaaaaatatat 47 4. POSTUPCI TRERMANA ELEKTROLUČNE PRAŠINE ... 52 4.1 Hidrometalurški procesi . ...
... | xIZ/ ı ' i | inductor Video | susceptor recorder Flowmeter crucible : alumina capillary |} | —~ fumace wall || [_ alumina tubc ul l Pump \ Ar t Flow-rate \\ => controller _ |* Slika 18. Šematski prikaz eksperimentalnog uređaja [7] Pucanje mehurića na površini i formiranje kapljica ...
... 0,7-1,7 0,8-1 F 0,02-0,9 0,01-0,65 0,3-2,4 s 0,1-3 0,25-1,42 0,2-0,5 c 0,4-3,3 0,5-3,1 0,05-1,3 Vlaga 6-16 N N N-Podaci nisu dostupni 53 4.L Hidrometalurški procesi Hidrometalurški procesi za ekstrakciju metala, pretežno cinka, iz prašine koja nastaje u proizvodnji čelika nisu široko ...Mariја Bošković. Savremeni pristup rešavanja problema industrijskog otpada, 2024
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Advantages and challenges in presenting mathematical content using EDX platform
Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone. "Advantages and challenges in presenting mathematical content using EDX platform" in The Seventh International Conference on e-Learning (eLearning-2016), Belgrade : Metropolitan University (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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Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia
Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović. "Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia" in Progress in Landslide Research and Technology, Volume 3, Issue 1, Springer Cham. (2024). https://doi.org/https://doi.org/10.1007/978-3-031-55120-8_22
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Rule-based Automatic Multi-word Term Extraction and Lemmatization
In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac. "Rule-based Automatic Multi-word Term Extraction and Lemmatization" in Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016, Portorož, Slovenia, 23--28 May 2016, European Language Resources Association (2016)
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Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support
... loosening of bolted connections. The developed damage detection method is experimentally validated on an aluminum threc-bay space frame structure with L-shaped beams and bolted joints. Three types of introduced damage, including joint damage, member damage and boundary damage, were successfully detected ...
... Movement [mm} .0 Velocity [mny/s} Acceleration [m/5" « | | || - | j Yli| [10%111}T11f||TRHY}}|f MMA JNJIMINJI| m\h':'\\m |PA| |4|Y}Y}}||}}|| | IJ|||||}||L|||||j | |B(}/M-6}Y/,}}}}}h | | JMI aa [1 40 .0l O 200 40 600 — 8000 10600 1200 1400 0000 200 400 600 800 1000 1200 1400 ~ "(oD 700 400 600 -800 ...
... k 000 200 — 400 600 ~ S80D 1000 1200 1400 700 400 6OO _ 80D 1000 1700 1400 000 200 - 400 600 _ S80D 1000 1200 1400 | *WU\ iii || 40 | | | al | L NK NI NK NE I I IEON E BIK TK IK I IEOVN E NE IK TYE K E 1 Tmebl Yeebi ineki 'Vovemert iv elocity lm cceleration [n/k ši ii „g Velocity I ag Aetelerateenll ...Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović. "Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support" in Journal of Vibroengineering (2017). https://doi.org/10.21595/jve.2016.17321
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Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)
Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)" in Palaeoworld, Elsevier BV (2019). https://doi.org/10.1016/j.palwor.2019.05.001
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Prilog poznavanju režima isticanja vrela Gornji Dušnik, (Suva planina)
Aleksandar Tanasković, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Dušan Polomčić, Ljiljana Vasić, Branislav Petrović (2024)Karstno vrelo Gornji Dušnik nalazi se u istoimenom selu u jugoistočnoj Srbiji, u opštini Gadžin Han. Ovo vrelo drenira zapadne delove Suve planine i kaptirano je za potrebe vodosnabdevanja Gadžinog Hana, kao i sela Gornji i Donji Dušnik. Iako je ovo vrelo kaptirano, sistematska osmatranja isticanja karstnih voda na njemu do sada nisu vršena. U periodu od 1. novembra 1977. do 31. januara 1979. godine, uspostavljen je monitoring na ovom vrelu od strane Geozavoda (merenja vršena sporadično i to ...bilans voda, režim isticanja, autokorelacija, kroskorelacija, spektralna analiza, vrelo Gornji DušnikAleksandar Tanasković, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Dušan Polomčić, Ljiljana Vasić, Branislav Petrović. "Prilog poznavanju režima isticanja vrela Gornji Dušnik, (Suva planina)" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739842
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Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...... Sachsenhofer, R.F., Matić, V., Glamočanin, L., Stojanović, K., 2018. Petrographical and organic geochemical study of the lignite from the Smederovsko Pomoravlje field (Kostolac Basin, Serbia). International Journal of Coal Geology 195, 139–171. Ellis, L., Singh, R.K., Alexander, R., Kagi, R.I., 1996 ...
... and Geology, Ðušina 7, 11000 Belgrade, Serbia gUniversity of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia a r t i c l e i n f o Article history: Received 9 October 2018 Received in revised form 17 December 2018 Accepted 2 January 2019 Available online 4 January 2019 ...
... Arctic. Canadian Journal of Botany 81, 113–130. Lindström, S., Pedersen, G.K., van de Schootbrugge, B., Hansen, K.H., Kuhlmann, N., Thein, J., Johansson, L., Petersen, H.I., Alwmark, C., Dybkjær, K., Weibel, R., Erlström, M., Nielsen, L.H., Oschmann, W., Tegner, C., 2015. Intense and widespread seismicity ...Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović. "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" in Organic Geochemistry, Elsevier BV (2019). https://doi.org/10.1016/j.orggeochem.2019.01.001
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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Hibridni sistem za planiranje i analizu ventilacije rudnika
Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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Development of A Business Intelligence Tool For Accident Analysis in Mines
Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić. "Development of A Business Intelligence Tool For Accident Analysis in Mines" in Proceedings of the 5th International Symposium Mining And Environmental Protection, June 10-13, 2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Analiza delovanja vazdušnih udara nastalih kao posledica miniranja na krečnjaku
Suzana Lutovac, Miloš Gligorić, Jelena Majstorović. "Analiza delovanja vazdušnih udara nastalih kao posledica miniranja na krečnjaku" in XVI međunarodna rudarska konferencija OMC 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova
Zoran M. Štirbanović (2015-07-01)Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašinaZoran M. Štirbanović. "Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-07-01)
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Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Development of terminological resources for expert knowledge: a case study in mining
... DHILLON BS (2003) Engineering Safety: Fundamentals, Techniques, and Applications. World Scientific Publishing Co. Pte. Ltd, Singapore. GAGNÉ C, LAZURE L, LEDOUX É, OUELLET S and FOURNIER PS (2011) Knowl- edge management in the quebec mining industry: a framework of practice to ensure evidence-based knowledge ...
... MH, CHEBEL-MORELLO B and ZERHOUNI N (2012) A formal ontology for industrial maintenance. Journal of Applied Ontology 7(3), 269–310. KLESS D, JANSEN L, LINDENTHAL J and WIEBENSOHN J (2012) A method for re-engineering a thesaurus into an ontology. In FOIS 2012: 7th Interna- tional Conference on Formal ...
... centered vision – how to create equipment ontologies and why. In Proceedings of the IADIS International Conference on Web Based Communities 2006 (RODRIGUES L and BARBOSA P, Eds), pp 289–293, San Sebastian, Spain. SCHIUMA G Ed (2011) Managing and measuring knowledge assets dynamics for business value creation ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić. "Development of terminological resources for expert knowledge: a case study in mining" in Knowledge Management Research & Practice, Palgrave Macmillan (2015). https://doi.org/10.1057/kmrp.2015.10
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Remontni radovi u bušotini sa dubinskom pumpom
Jovana Milošević (2024)Remontni i stimulativni radovi u naftnom inženjerstvu su radovi koji se primenjuju na bušotinama koje su već u proizvodnji ili potencijalno proizvodnim bušotinama, i u zavisnosti od toga imaju različitu svrhu. Remontni radovi predstavljaju sve radove koji su ograničeni na kanal bušotine, dok se stimulativni radovi odnose pribušotinsku zonu.U prvom slučaju remontni i stimulativni radovi kod proizvodnih bušotina služe za otklanjanje problema i povećavanje proizvodnje bušotine. Dok u drugom slučaju, kod potencijalnih bušotina su ovi radovi namenjeni završnim obradama ...... Naftne • Potencijalno proizvodne • Eruptivne (istražne, konturno-istražne) • Gasne • Proizvodne • Eksploatacija primenom mehaničke metode Slika L,SHEMA KRTIERIJUMA PODELE BUŠOTINA, (Soleša M. , 1996) Zadatak remonta kod potencijalno proizvodnih bušotina Je ispitivanje definisanih tj. očekivanih ...
... (slika 7) Fi lt er Gr av el pa ck me dj up ro st or Pe rf or ir an i ke zi ng Fo rm ac ij ki pe sa k C e m e n t _| Gr ve l pa ck — pe rf or ac ij e | Slika 7, PRIKAZ RASPOREDA ZRNA4 GRAPELA IZMEĐU FILTERA I SLOJA, (PETROBLOGWEB, 2016) Osnova za projektovanje gravela ...
... njihovu kalibraciju i kalibraciju opreme koja se definiše API standardom, poput: dleta, bočnog frezera.. Pročišćavanje bušotine (slika 22) minimalno 360 l/min, cirkulacijom sve do pojave čistog radnog fluida na površini. 34 OTVOREMI INTERVAL Slika 22, Čišćenje bočnim frezerom i dletom uz cirkulaciju ...Jovana Milošević . Remontni radovi u bušotini sa dubinskom pumpom, 2024
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Review of the Failure at the Flotation Tailings Storage Facility of the “Stolice” Mine (Serbia)
Dragana Nišić, Nikoleta Aleksić, Bojan Živanović, Uroš Pantelić, Veljko Rupar. "Review of the Failure at the Flotation Tailings Storage Facility of the “Stolice” Mine (Serbia)" in Applied Sciences, MDPI AG (2024). https://doi.org/10.3390/app142210163