Претрага

Упит dcterms_subject_txt:kinematic analyses

259 items

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... rock samples and the thin sections are stored at the Institute of Geological Scicnces, Jagiellonian University in Krakow. For the radiolarian analyses, 61 samples were collected from different lithologies, but only 16 samples with poor to moderately preserved radiolarians were selected for dec- ...
    ... the lowermost part of thc spotted radiolarites may be assig- ned to the Upper Bajocian-Lower Callovian (UAZs 5—7). Additionally, carbon isotope analyses š)ermit the determina- tion of the Late Bathonian negative &UC shift in their lower part (number 4 in Fig. 15). Only one Lamellaptychus sp. ...

  • Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series

    Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)
    Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...
    deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija
    ... Falanesca [10] illustrated the comparison between the prognosis and the crosscheck of the support methods and the replacement solutions. Several back- analyses were carried out in order to achieve the correct validation of the interventions and an optimal understanding of the deformation behavior of the rock ...

  • 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
    ... of the ophiolite thrust (Adriatic units) (Bortolotti et al. 1996; Chiari et al. 2011). WNW-ESE trending.stretching lin- eations and top-WNW kinematic indicators in the sub- ophiolitic melange imply top north-west tectonic transport of the ophiolitic thrust sheet (Carosi et al. 1996; Schmid ...
    ... back- thrust took place prior or coeval to the deposition of these sediments. Consequently, the Albian-Campanian strata could be partly syn-kinematic with respect to D (back)thrusting in the region. However, indisputable proof K. Porkolab et al. for syn-D» deposition is yet lacking, thus our ...
    ... different from the Northern Triassic. This idea/assumption contradicts previous works which all have assumed a Fig. 2a. b Tentative model for the kinematic evolution of the Drina- Ivanjica thrust sheet and surrounding units to visualize possible explanation of structural relationships stratigraphic ...

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... build rule-based systems. Experts in the fields of linguistics, computa- tional linguistics and computer science first have to en- code grammatical analyses (translation rules) and com- pile vocabulary lists (lexicons). is is very time con- suming and labour intensive. Some of the leading rule- basedmachine ...
    ... in a typical text processing system. efirst threemodules handle the structure and meaning of the text input: 1. Pre-processing: cleans the data, analyses or removes formatting, and detects the input language. In Ser- bian it can also help in resolving the Latin andCyril- lic alphabets duality, as well ...
    ... Intonation Planning Natural Language Understanding & Dialogue Recognition 9: Speech-based dialogue system 2. Natural language understanding analyses the syntac- tic structure of a user’s utterance and interprets it ac- cording to the system in question. 3. Dialogue management determines which ...

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... oping the very first models and utilizing machine learning algorithms. Subsequently, Mileva Samardžić-Petrović took charge of the statistical analyses and delved into the initial exploration of machine learning algorithms. Building upon this groundwork, Filip Arnaut made signifi- cant contributions ...

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... examples. Conflicts of Interest: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. References 1. Prćić, T. Ka Savremenim ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... high-pressure operation required to achieve high overall efficiency, though high pressures may be favorable for CCS applications. Recent energy analyses have indicated that the calcium-looping post- combustion process can incur an efficiency penalty of only 6–8 % |[48]. Most of the chemical-looping ...

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... are calculated based on measured boundary values for the smooth rod stroke and load, dimensions and characteristics of the downhole pump, the kinematic assembly of the horsehead, and the characteristics of the sucker rods.To develop a mathematical model for a smart transmission system for diagnosing ...
    ... characteristic dynamogram shapes from oil fields worldwide. 2. A specialized database on driving units (horseheads) that includes geometric and kinematic parameters of the horseheads. 3. A database of sucker rod characteristics, including dimensions, weight, and maximum Stresses. 4. A database ...
    ... by the total load, load from the rods, stroke length of the smooth rod, and total expansion. When all other parameters are known, such as the kinematic characteristics of the horsehead, dimensions of the 14 downhole pump, characteristics of the sucker rods, and fluid specifics, the characteristic ...

  • Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)

    Gordana M. Jovanović (2014-12-05)
    Rad obuhvata detaljnu studiju badenskih školjaka koje potiču sa terenajugoistočnog oboda Panonskog basena (Centralni Paratetis). Proučavani su lokaliteti naprostorima Srbije (Fruška gora, Golubac, okolina Beograda, Aranđelovca, Koceljeva,Loznica) i severoistočne Bosne (Ugljevik). Pored taksonomske analize i paleontološkihopisa bivalvija, u radu je dat i spisak revidovanih vrsta koje su do sada pronađene usedimentima badenskog kata istraživanog terena. Do sada je ukupno poznato 41familija, 108 rodova i 174 taksona. Identifikovano je 170 bivalvijskih vrsta, međukojima su neke prvi put konstatovane na ovim ...
    školjke, baden, Panonski basen (Centralni Paratetis), stratigrafija,paleoekologija, paleogeografija, paleobiogeografija
    ... Flexopecten scissus (Favre) indicate Upper Badenian. The collected material was used for taxonomic, stratigraphic, paleoecological and taphonomic analyses. All the available data from literature and the newest studies on distribution of fauna were used to prepare a paleogeographic sketch of the studied ...
    ... poznavanju badenskog kata okoline Donjeg Milanovca. Glasnik Prirodnjačkog muzeja A, 40/41: 91-95. Jovanović, G. 1992. Paleoecological and taphonomic analyses of a fossiliferous bed in badenian sediments of Žuti Breg near Golubac, Eastern Serbia. Geološki anali Balakanskoga poluostrva, 55, 2: 309–219 ...
    ... Geology and Exploitation, 27: 171-263. Moscow. (Ruski). Kidwell, S., M. 2002. The Quality of the fossil record: Implications for Evolutionary Analyses. Annual Rewiev of ecology and systematics, 33: 561-88. Kidwell, S. M., Rothfus, T. A., Best, M. M. R., 2001. Sensitivity of taphonomic signatures ...

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... interactions: A tribute to H.P. Eugster. Geochim. Soc. Spec., 2, 103-119. Lindsley, D.H., Spencer, K.J., (1982): Fe-Ti oxide geothermometry: Reducing analyses of coexisting Ti-magnetite (Mt) and ilmenite (llm). Trans Am. Geophys. Union (EOS), 63, 471. Luković, A., Zavašnik, J., Cvetković, V., Šarić, K ...
    ... Chemical Geology, 117(1-4), 313–330. Stormer, J.C. Jr., (1983): The effects of recalculation on estimates of temperature and oxygen fugacity from analyses of multicomponent-iron-titanium oxides. American Mineralogist, 68, 586- 594. Stormer, J.C., Whitney, J.A., (1985): Two feldspar and iron-titanium ...

  • Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication

    Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović (2023)
    Ammonites, Taxonomy, Lower Berriasian, Getic, Northern Tethys, Serbia
    ... lanites has been the subject of long-standing debate, beginning with the establish- ment of the genus in Le Hegarat (1971, 1973), through the analyses of Callomon (1981), Bogdanova and Arkadiev (2005), Arkadiev and Bogdanova (2012), and Hoedemaeker in Hoedemaeker et al.(2016). The genus Ps ...

  • Uslovi formiranja oticaja reke Crnice

    Andjelija Glogovac (2024)
    Sliv reke Crnice zauzima područje centralnog dela Srbije, između opštine Paraćin na zapadu, Sisevačkog basena na istoku, sliva Ravanice na severu i Jovaničke reke na jugu.Režimski parametri sliva reke,površine od 289 km2 kontrolišu se na hidrološkoj stanici Paraćin, dok su sa ciljem analize režima i uticaja padavina na formiranje oticaja preuzeti podaci o padavinama sa meteorološke stanice Ćuprija.Na razmatranom području dominantnu ulogu ima karsni tip izdani, koga karakteriše nestabilan režim u u pogledu oscilacija izdašnosti i nivoa podzemnih voda ...
    režim voda, autokorelacija, kroskorelacija, bilans voda, klimatske promene, reka Crnica
    ... Rudarsko-geološki fakultet, Beograd, str. 1-300. 7. Mangin A., (1984). Pour une meileure connaissance des systemes hydrologiques a partir des analyses correlatioire et spectrale. Journal of Hydrology, v. 67, pp. 25-43 8. Marković J. (1954). Reljef sliva Crnice ı Grze. Srpska akademija nauka, ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... (Romania). Tectonophysics 404, 33–53. Glen, J.M.G., 2004. A kinematic model for the southern Alaska orocline based on regional fault patterns. In: Sussman, A.J., Weil, A.B. (Eds.), Orogenic Curvature: Integrating Paleomagnetic and Structural Analyses: Geological Society of America Special Paper 383. Geological ...
    ... mm are filled manually, using a funnel, with alternating layers of differently coloured sand, representing syn-kinematic sedimentation. At the end of each experiment, two post-kinematic layers of black and white sand are added on top of the entire model to preserve topography and water is sprinkled ...
    ... that syn-kinematic erosion and/or sedimentation in a strike-slip setting only have minor effects on structural patterns, yet the results have been ob- tained at higher spatial resolution. As such, minor differences in struc- tural patterns within strike-slip zones with or without syn-kinematic sedimentation ...

  • 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 (2023)
    Brachiopods, taxonomy, biostratigraphy, early Toarcian Anoxic Event, Bulgaria

  • Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима

    Radiša D. Đurić (2016-05-30)
    Оцена расположивости представља основну компоненту уинжењерском управљању опремом. Расположивост је свеобухватни концепткоји представља меру употребног квалитета техничких система, који садржичитаву серију парцијалних индикатора који се односе на време у раду ивреме у отказу система као и на његову функционалну погодност. Овадисертација даје структурну анализу парцијалних индикатора као и развојмодела њихове синтезе на ниво расположивости. Поменути подаци имајухибридни карактер (измерени и експертски добијени) и њихова интеграцијаи синтеза је остварена коришћењем фази пропозиције и фази закључивања.Овакав приступ омогућава оцену техничког система ...
    управљање опремом, инжењерство одржавања,расположивост, фази закључивање, прикупљање података, булдозер
    ... Safety analyses and synthesis using fuzzy sets and evidential reasoning. Reliability Engineering and System Safety, 47(2), 103-118 Wang, J., Yang, J.B., Sen, P., 1996. Multy person and multy-atribute design evaluations using evidential reasoning based on subjective safety and coast analyses. R ...

  • 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)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... orogen. Tectonics 34, 1813–1836. Glen, J.M.G., 2004. A kinematic model for the southern Alaska orocline based on regional fault patterns. In: Sussman, A.J., Weil, A.B. (Eds.), Orogenic Curvature: Integrating Paleomagnetic and Structural Analyses: Geological Society of America Special Paper 383. Geological ...
    ... Miocene normal faults and syn-kinematic sedimentation are usually buried at depth beneath the largely outcropping post-kinematic deposition younger than 17 Ma (Fig. 2, Krstić et al., 2003; Matenco and Radivojević, 2012; Sant et al., 2018). Most of these post-kinematic shallow-water sediments are ...
    ... stratigraphic juxtaposition across faults combined with their overlying post-kinematic sedimentation (e.g., Dimitrijević, 1997; Schmid et al., 2008, 2020 and references therein). We specifically focused the kinematic fieldwork to characterize the kinematics of large faults and shear zones, initially ...

  • Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije

    Dragana D. Petrović (2015-12-29)
    Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...
    Istočna vardarska zona; ofioliti; 2D i pseudo 3D geofizičko-geološkimodel; geodinamička evolucija
    ... nastavna sredstva, Beograd 110 Pearce, J. A. and Cann, J. R., 1973. Tectonic setting of basic volcanic rocks determined using trace element analyses. Earth Planet. Sci. Lett., 19 (2), 290–300. Pearce, J. A., Harris, N. B. W., Tindle, A. J., 1984. Trace element discrimination diagrams for the ...

  • Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog

    Maja D. Milošević (2016-12-09)
    Adsorpciona efikasnost različitih uzoraka glina sa lokaliteta Srbije određenaje njihovim tretiranjem različitim koncentracijama rastvora metilen plavog (MP).Detaljna mineraloška karakterizacija ispitivanih glina i rezultati njihove interakcijesa rastvorima MP dobijeni su primenom optičkih, rendgenskih, hemijskih, DTA ispektroskopskih metoda.Na osnovu formiranja MP agregata u izmenljivim pozicijama i površiničestica gline, razlikuju se dva tipa glinovitih minerala: visoko naelektrisani(smektiti) i nisko naelektrisani (kaoliniti). Dimeri se stvaraju na naelektrisanimpovršinama, a granica njihovog razvoja omogućuje determinaciju mineralne vrste.Molekuli MP stoje pod uglom od 21.5o kada se ...
    minerali glina, metilen plavo, kristali metilen plavog, difuznarefleksija, adsorpcija, flokulacija, naelektrisanje slojeva
    ... der Methylenblaugruppe. Liebigs Ann. Chem 230: 73 - 136 and 137 - 211 Bishop J.L., Pieters C.M. and Edwards J.O. 1994. Infrared spectroscopic analyses on the nature of water in montmorillonite. Clays & Clay Miner. 42 (6): 702 - 716 Bodman S.W., Kodama S.P., Pfeil P.C and Stevens R.E. 1967. Solubility ...

  • Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika

    Kostić N. Bojan (2021)
    Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...
    Rudnik, kontaktni metamorfizam, sedimentne stene, hornfels, skarn, granati, vezuvijan
    ... Petrology, 27, p. 45–750 Leake, B. E. 1978: Nomenclature of amphiboles. Mineral. Mag. 42, p. 533-563 Locock, J. 2007: An Excel Spreadsheet to Recast Analyses of Garnet into Endmember Components, and A Synopsis of the Crystal Chemistry of Natural Silicate Garnets. Computers & Geosciences 34. p. 1769-1780 ...