Претрага
118 items
-
Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing, disabling, or slowing down the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure ...
... Such incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing, disabling, or slowing down the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure ...
... first-rate risk assessment of an individual component’s failure. Meticulous attention should be directed toward the factors that can cause a risky event, as well as toward the consequences and negative effects that can manifest after a failure. The consequences of a failure can have a negative impact ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
-
Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)
Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović (2020)Седиментна сукцесија између доњег и средњег миоцена и складан тј. дискордантан однос између језерско-континенталних наслага (нпр. DLS, SLS) и баденских морских седимената представља једну од занимљивих тема. У овом раду смо проучавали пет истражних бушотина (источна Србија) и анализирали главни фацијални образац, биостратиграфске карактеристике миоценске сукцесије и применили U-Pb радиометријско датирање вулканских туфова интерстратификованих у седиментној серији са слојевима угља (бушотина NRKR-17002). Добиjeна је конкордија старост од 16,9 ± 0,2 милиона година за сва анализирана зрнца циркона без наследних ...Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović. "Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2020). https://doi.org/10.2298/GABP1902013R
-
Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology
The subvolcanic regions of magmatic centers are commonly associated with alteration, mineralization, and economic ore deposits, however the duration and frequency of mineralizing pulses within the overall lifespan of these centers can be poorly defined. Therefore, models for the formation of mineral systems require more highprecision geochronology data to refine their evolutionary models. Rogozna Mountain and its eponymous magmatic complex, located in SW Serbia, hosts multiple base metal deposits associated with variable rock types and structural expressions and serves as a natural laboratory to ...Skarnovska mineralizacija, Magmatsko-hidrothermalni sistemi, Subvulcanske intruzije, geohronologija na cirkonima, CA-ID-TIMSSean P. Gaynor, Milorad D. Antić, Vladica Cvetković, Kristina Šarić, Urs Schaltegger. "Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology" in Ore Geology Reviews, Elsevier (2023). https://doi.org/https://doi.org/10.1016/j.oregeorev.2023.105775
-
Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... Burg 2012). In western part of the central SMM, this exten- sional event is manifested by the Permo-Triassic granitic intrusion in the Bujanovac magmatic complex (Antić et al. 2015b). Therefore, this regional extensional event was most probably responsible for the formation of the shear zone ...
... flu- ids from the subducted slab of Vardar might have caused the initial thermal event, locally resetting:the argon iso- topic system of mica in gneisses of the Lower Complex. Alternatively, this thermal event could be related to shoul- der extension and exhumation during the rifting stage of ...
... of this event is constrained by crenulation of the Middle Triassic mylonitic foliation in Božica area. • Anastomosing shear zones, S-C fabric, and spaced cleavage developed in the Permo-Triassic Bujanovac granite provide evidence of an additional post-Triassic ductile deformation event. Additional ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
-
Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians
Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)... The initial late Early Cretaceous thrusting (~100–110 Ma, ‘Austrian’ event in local literature) of the Supragetic unit was followed by the latest Cretaceous thrusting (late Campanian–early Maastrichtian, ~75–67 Ma, ‘Laramian’ event in local literature) of the Getic unit and the formation Fig. 3. ...
... The last deformation event observed in our studied area is the thrusting of the Upper Getic sub-unit, which took place likely by reac- tivating the orogen-perpendicular normal fault system inherited from the Oligocene - early Miocene deformation stage. The age of this event is constrained by the ...
... orogenic struc- ture, the second deformation event observed in the studied area was associated with a complex strain partitioning between partly over- lapping stages of orogen-perpendicular extension, strike-slip and orogen parallel extension. This event took place mostly during the ~40◦ of oroclinal ...Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer. "Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians" in Global and Planetary Change, Elsevier BV (2020). https://doi.org/10.1016/j.gloplacha.2020.103361
-
Numerical simulation of the Late Jurassic closure of the Vardar Tethys
... along the active (European) margin, which match the existing geologicalrelationships. However, the simulations involve an unreasonably short geodynamic event (cca15-20 My) and we are working on solving this problem with new simulations. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical simulation of the Late Jurassic closure of the Vardar Tethys" in EGU General Assembly 2021, Copernicus GmbH (2021). https://doi.org/10.5194/egusphere-egu21-9893
-
2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys
... along the active (European) margin, which match the existing geologicalrelationships. However, the simulations involve an unreasonably short geodynamic event (cca15-20 My) and we are working on solving this problem with new simulations. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys" in EGU General Assembly 2020, Copernicus GmbH (2020). https://doi.org/10.5194/egusphere-egu2020-5919
-
Serbian Society of Geomorphologists
Dragana Đurić, Jelena Ćalić (2019)Dragana Đurić, Jelena Ćalić. "Serbian Society of Geomorphologists" in GeomorForum 2019: Landforms related to plains of Serbia and its neighboring area, Conference Programme and Abstracts, Beograd, 10-12. maj 2019, Serbian Society of Geomorphologists (2019)
-
Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations
... European affinity and is juxtaposed against the Adria-derived units ofthe Dinarides across the Adria-Europe zone of collision. The peak metamorphic event in the Serbo-Macedonian Massif is Variscan in age, while its magmatism had a complex pre-Alpine evolution,with the youngest stage being related to the ...Bojan Kostić, Uroš Stojadinović, Nemanja Krstekanić, Marija Ružić, Aleksa Luković. "Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021). https://doi.org/10.5194/egusphere-egu21-202
-
Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise
Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín. "Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise" in Science Advances, American Association for the Advancement of Science (AAAS) (2023). https://doi.org/10.1126/sciadv.adi2698
-
Combining Heterogeneous Lexical Resources
... case with the synset (show:3) ‘public exhibition or entertainment’: (9) abstraction:6 relation:1 social relation:1 event:1 communication:2 social event:1 show:3 Lemmas from DELAS that correspond to literal strings of synsets that belong to the multiple hierarchical ...
... (equivalent of show:3) can inherit semantic information from both trees represented in (9) yielding the DELAS lemma predstava,N600+Abstraction+Event. 3 The supporting software The C# programming language and Microsoft .Net were chosen as the basic development tools. Visual Studio .NET is ...Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić. "Combining Heterogeneous Lexical Resources" in Proceedings of the Fourth Interantional Conference on Language Resources and Evaluation, Lisabon, Portugal , May 2004, vol. 4, ELRA - European Language Resources Association (2004)
-
EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School
Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku... linguistic and metadata vocabularies and the VocBench platform10 (Stellato et al. 2020) modelling linguistic datasets. In the afternoon, an online social event was organized where the participants could remotely see the beauty of the Romanian culture, traditions and nature. The fifth day comprised three parallel ...
... to learn were very highly evaluated. On the other hand, due to the virtual mode, there is still room for improvement in practical sessions, social event organization and oppor- tunities to network. The knowledge and skills acquired there will improve the development of Serbian linguistic resources and ...Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković. "EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.7
-
Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... which is an un- documented event in the Veszprćm Plateau. Similar event, however, is well known from the Western Dolomites, where aggradation was fol- lowed by intense progradation during the Gyed/er: and 4rcbela#5 am- monoid zones. The length of this progradation event at Gyulakeszi, however, ...
... early Julian, which was based on the presence of biostratigraphically important foraminiferal taxa (such as Austrocolomia marscbalhi, Tyrriglomina carnica, Meandrosprrella planispira, Scbmidita inflata, Triadodis- cwMs eomesozoicws). The ammonoid Celttes epolenst, ound in the underlying unit at ...
... older, the section at Gyulakeszi is not equiva- ent to the Berekhegy Limestone. Local and regional correlation of the progradation event The progradation event was preceded by the de- posit of the marine transgression (V4aszoly Formation) during the Avisan#m subzone (Rejzi zone). Pelagic ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)
-
Numerical modeling of Selanac debris flow propagation using SPH code
The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...... Caminos, Department of Applied Mathematics, Madrid, Spain jelka.krusic @rgf.bg.ac.rs Abstract The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling ...Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi . "Numerical modeling of Selanac debris flow propagation using SPH code" in SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics And Geotechnical Engineering (2021)
-
Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... Based on the observed mineral assemblage and recrystallization features of the main rock-forming minerals, we estimate that the primary metamorphic event that affected the Northern Serbo-Macedonian Subunit was in the amphibo- lite facies at temperatures of 500–550 °C and pressure of 0.5–0.7 GPa, with ...
... and local sub-grain rotation in quartz and feldspar grains, as well as the mineral assemblage with retrograde chlorite indicate that the shearing event occurred at temperatures of ~400–450 °C and 0.3–0.5 GPa, indicating retrograde greenschist metamorphic facies which followed primary amphibolite ...
... elsewhere (e.g., Willingshofer et al. 1999, 2001; Gröger et al. 2013; Reiser et al. 2017), was acti- vated during the Late Cretaceous extensional event that affected the Dacia Mega-Unit. The Late Cretaceous exten- sional detachment, which exhumed the Northern Serbo- Macedonian Subunit below the Supragetic ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
-
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... ica thrust sheet as related to the latest Jurassic-earliest Cretaceous deforma- tion event. In contrast, Djokovic (1985) interpreted the same structures as being related to a Paleozoic deformation event. 5.3 Implications for the Late Jurassic-Early Cretaceous evolution of the Drina-Ivanjica ...
... 130-150 Ma K/Ar ages suggest a slightly older metamorphic event that affected the Paleozoic and in the Northern Triassic unit of the Drina-Ivanjica thrust sheet. Asymmetric F1 folds imply top-WNW tectonic transport during this event in our study area which is in agreement with the direction ...
... Northern and Southern Triassic units are of different origin and the NE- verging Do structures are related to a regional-scale D„. backthrusting event (Figs. 7, 8). Such a structure could explain both the commonly found NNE-verging structures (Figs. 2, 4, and 7) in the proximity of the contact ...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)
-
FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain
U radu se daje kratak prikaz teorije semantike okvira, na kojoj je zasnovana leksička baza Frejmnet. Predstavljena je koncepcija ove mreže, kao i mogućnosti njene primene. Predstavljena je i leksička analiza koja se primenjuje u projektu izrade Frejmneta i ukazano na razlike između analize zasnovane na okviru u odnosu na analizu zasnovanu na reči. Zatim je prikazano nekoliko povezanih okvira koje prizivaju reči iz domena rizika. U radu je predstavljena i platforma NLTК pomoću koje se mogu koristiti ...... central to the RISK scenario or the Protagonist. The Protagonist takes a risk willingly or otherwise or runs the risk; possible Bad outcome or Harmful event; the Decision which may lead to a bad outcome; a Purpose; an Action; certain Circumstances in which the protagonist stands; an Asset (a person or an ...
... Infotheca Vol. 21, No. 1, September 2021 9 Marković A. et al., FrameNet Lexical Database. . . , pp. 7–33 belongs to, a description of the situation or event represented by the frame and creating a list of words whose meaning would be described with reference to that frame (Fillmore et al. 2003, 299).7 After ...
... lexicographer tries to describe the frame the LU belongs to more closely. After that, he writes the definition of the frame – a schematic description of an event which is central to a word, along with the names of participant roles called frame elements. The way in which frame elements are expressed in sentence ...Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović. "FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.1
-
Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... The second stage is related to hydrothermal activity when W and Fe were brought into the system probably by a boiling process in the volcanic event in the late Oligocene 23.9 Ma. Keywords: grandite, garnets, skarn, Rudnik. Introduction Study of the composition of common skarn minerals and ...
... we conclude that: • Rudnik skarns and hornfelses formed by contact-metamor- phism of carbonate rocks, clastic rocks and shales during volcanic event that took place in the late Oligocene; • The studied garnets from the Rudnik orefield show that in the first stage during garnet slow growth conc ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
-
Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)
Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković (2018)... Radivojević, 2012). Recent thermochronological studies in the SE Serbia and adjacent countries have inferred that the peak metamorphic event in the Serbomacedonian unit is Variscan and that its magmatism had a long Paleozoic evolution (Antić et al., 2016a). South of ...Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković. "Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
-
Quantitative landslide risk assessment in the city of Tuzla
In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...... The following sequence of techniques and procedures (Fig. 1) was implemented to that end ● Landslide inventorying: compiling long- term landslide event records throughout the city territory, from geotechnical reports, field campaigns (especially from 2014), remote sensing image analysis; using point ...
... related ground instabilities (especially subsidence), but the actual motivation for a detailed study was the 2014 massive flooding and landslidng event that affected the entire region (Fig. 3). More than 500 mm was precipitated in less than a month and a half, which is more than 6 months’ worth of ...Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović. "Quantitative landslide risk assessment in the city of Tuzla" in SCG-Xiii International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics and Geotechnical Engineering (2021)