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Упит dcterms_subject_txt:vertical gravity gradients

90 items

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... a. ANPrepNp - A noun preceded by an adjec- tive and followed by a prepositional phrase (as in case 4b); e.g. gravitacijska koncentracija u vodi ‘gravity concentration in water’. b. ANNgiNgi - a noun preceded by an adjec- tive and followed by two adjectives/nouns in the genitive case or in the instrumental ...
    ... and geochemical research” and a term for technical characteristics of machines “Length of the caterpillar transporting device measured from the vertical excavator rotation axis to the front edge of the caterpillar”. 4.2 Extraction of MWUs from domain texts The extraction of MWUs from a text is ...

  • An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)

    N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero (2020)
    Paleontology,Earth-Surface Processes,Ecology, Evolution, Behavior and Systematics,Oceanography

  • Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia

    Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin (2013)

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... deformation related to these faults is dominantly associated with (sub-)vertical strike-slip faults (Fig. 4). In the main fault zones, we commonly observed numerous closely-spaced (i.e., at tens of centi- metres distance) sub-vertical faults with fault gouges and similar kine- matics (e.g., Figs. 5a, d) ...
    ... Upper Cretaceous volcaniclastics along the Rtanj-Pirot Fault at studied point P44. The entire outcrop is affected by pervasive sub-vertical faulting. c) Tilted sub-vertical bedding in Upper Cretaceous volcaniclastics with bedding-parallel dextral shearing along the Rtanj-Pirot Fault at studied point P56 ...
    ... 39Ar ages. Tectonophysics 290, 111–135. Davy, P., Cobbold, P.R., 1988. Indentation tectonics in nature and experiment, 1. Experiments scaled for gravity. Bull. Geol. Inst. Univ. Uppsala, N.S. 14, 129–141. de Bruijn, H., Marković, Z., Wessels, W., Milivojević, M., van de Weerd, A.A., 2018. Rodent ...

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP

  • Uticaj utiskivanja gas-lift gasa na prenos mase i toplote

    Branko Grubač (2019)
    Nakon uvođenja kontinualnog gas-lifta, primećen je porast proizvodnje tečnog naftnog gasa, TNG, u postrojenju za preradu gasa, kao jednog od finalnih proizvoda dobijenog iz fluida gaso kondenzatnih i rastvorenog gasa iz naftnih bušotina. Pretpostavljeno je da se prisustvom gas-lift gasa uspostavlja drugačija ravnoteža faza u odnosu na slučaj bez gaslifta, te da je gas-lift gas stripovao propan i butane iz tečne u parnu fazu, što je dovelo do povećanja prinosa TNG-a. Napravljen je model bušotine koja radi u kontinualnom gas-liftu ...
    gas-lift, modelovanje bušotine, prenos mase i toplote, taloženje parafina
    ... congress, Germany, Vol. 10, str 451-465, (1963) [55] A. Hagedorn, K. Brown, Experimental study of pressure gradients occuring during continuous two-phase flow in small-diameter vertical conduits, Journal of Petroleum Technology, Vol. 17, str 475-484, (1965) [56] M. Jarić, Dvofazni tokovi u horizontalnim ...
    ... (1961) [62] P. Baxendell, R. Thomas, Calculation of pressure gradients in high-rate flowing wells, Jorunal of Petroleum Technology, str 1023-1028, (1961) [63] A. Hagedorn, K. Brown, The effect of liquid viscosity in two-phase vertical flow, Journal of Petroleum Technology, str 203-210, (1964) ...
    ... Francher, K. Brown, Prediction of pressure gradients for multiphase flow in tubing, Society of Petroleum Engineers, str 59-69, (1963) [65] Y. Taitel, D. Bornea, A. Dukler, Modelling flow pattern transitions for steady upward gas-liquid flow in vertical tubes, AiChE Journal, Vol. 26, str 345-354 ...

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... 10.1016/j.pal- aeo.2007.03.031 HARZHAUSER, M. & MANDIC, O. (2008): Neogene lake systems of Central and South-Eastern Europe: faunal diversity, gradients and interrelations.‒ Palaeogeogr. Palaeoclimatol. Palaeoecol., 260, 417–434. doi: 10.1016/j.palaeo.2007.12.013 HORVÁTH, F. (1984): Neotectonics ...
    ... metres away to the northeast, similar Pannonian marls are observed at the surface, at an altitude of about 210 metres. Due to the mentioned observed vertical movements along the block structures, a composite hilly relief with dominant the Torlak Hill and the Beli Potok Valley was formed. 2015). Seven ...
    ... the dissection of the older faults from the F1 system (Fig. 17a) and along these ENE – WSW oriented faults the block structures with pronounced vertical movements were developed (Figs. 20 and 21). Besides this orientation, faults which were reactivated in the late Miocene or neotectonic stage (see ...

  • Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija

    Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)
    flotacijska jalovišta, životna sredina, višekriterijumska analiza, ekologija, Trepča
    ... deposits have not been rehabilitated, the material from the deposits have scattered over the years in the environment through the aeolian process, gravity and water flows. Tailing material from the analyzed deposits shows permanent toxic pollution of water and agricultural land [13]. All atmospheric water ...
    ... a two-dimensional model. The PROMETHEE diamond solution is presented with the dot on (Phi+,Phi−) flat. The flat is at an angle of 45◦ so that the vertical dimension (red-green axis) corresponds to Phi net flow. A cone is drawn for every alternative. Cones A2 and A5 overlap, which indicates that these ...

  • Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)
    General Earth and Planetary Sciences

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... of subsurface gravity measure- ments. 4th Congress of the Balkan Geophysical Society, Bucharest, Romania. Journal of the Balkan Geophysical Society, Suppl. 1, 225–228. TASSIS G.A., GRIGORIADIS V.N., TZIAVOS I.N., TSOKAS G.N., PAPAZACHOS C.B., VASILJEVIĆ I., 2013: A new Bouguer gravity anomaly field ...
    ... Congress of the Balkan Geophysical Society, Book of Abstracts, Sofia, Bulgaria, 269–270. BUNDALO N., SMILJANIĆ B., ĐORĐEVIĆ, А., 2002: Horizontal Gradients of Bouguer Anomalies for Vojvodina. 3rd Congress of the Balkan Geophysical Society, Book of Abstracts, Sofia, Bulgaria, 252–253. SMILJANIĆ B. ...
    ... STRMBANOVIĆ I., CVETKOVIĆ V., 2014: 2D geological-geophysical model of the Timok Complex (Serbia, SE Europe): A new perspective from aeromagnetic and gravity data. Swiss Journal of Geosciences (Birkhaeuser Verlag AG, Basel. Switzerland), 107, 101–112, DOI: 10.1007/s00015-014-0161-0. ИГЊАТОВИЋ С., ВАСИЉЕВИЋ ...

  • 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
    ... Palaeoecology, v. 253, p. 8–31. Harzhauser, M., and O. Mandic, 2008, Neogene lake systems of Central and South‐Eastern Europe: Faunal diversity, gradients and interrelations, Palaeogeography, Palaeoclimatology, Palaeoecology, v. 260(3–4), p. 417–434, doi:10.1016/ j.palaeo.2007.12.013. Harzhauser ...
    ... 2007.09. 003. Šumanovac, F., 2010, Lithosphere structure at the contact of the Adriatic microplate and the Pannonian segment based on the gravity modelling, Tectonophysics, v. 485(1–4), p. 94–106, doi:10.1016/j.tecto.2009.12.005. Švabenička, L., S. Ćorić, A. S.Andreyevna‐Grigorovich ...
    ... Horvath, L. Lenkey, M. Stefanescu, P. Szafian, and T. Toth, 1999, Lithospheric structure of the Pannonian Basin derived from seismic, gravity and geothermal data, in The Mediterranean Basins: extension within the Alpine Orogen, edited by B. Durand, L. Jolivet, F. Horváth and M. Serrane ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... zone were affected by 30�–46� clockwise vertical-axis rotation which must have taken place after 20 Ma. It is proposed that clockwise vertical-axis rotation documented in the present study on one hand, and the previously documented counterclockwise vertical-axis rotation of Adria, on the other hand ...
    ... 03:40:28 Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Clockwise vertical-axis rotation in the ...
    ... Cvetković et al. (2013) and ages for the rest are from personal communication with Cvetković Clockwise vertical-axis rotation in the West Vardar zone of Serbia: tectonic implications 203 Clockwise vertical-axis rotation in the West Vardar zone of Serbia: tectonic implications 203 Table 2 Wider Rudnik Mts ...

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji

    Ljiljana R. Kolonja (2016-09-23)
    Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...
    rudarstvo, bezbednost i zdravlje na radu, poslovna inteligencija,tehnička zaštita, ontologije
    ... business intelligence services with the aim to identify risks of accidents at an early stage through the analysis of causes, place and time of event, gravity of injury and other relevant data stored in the base. The thesis puts emphasis on the key advantages of the use of ontology as technique for the ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... Ragheb, M., 2011. Thorium resources in rare earth elements. [65] Adebayo, S.B., 2019. Rare earth elememts cycling: across salinity and redox gradients (Doctoral dissertation, Tulane University School of Science and Engineering). [66] Balaram, V., 2022. Sources and applications of rare earth elements ...

  • Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija

    Dragana D. Đurić (2019)
    U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...
    paleoherpetofauna, Anura, Squamata, kvartar, pleistocen, neogen, Srbija, paleoekologija, paleoklima
    ... Küchenhoff, H., 2006. A new method to estimate paleoprecipitation using fossil amphibians and reptiles and the Middle and Late Miocene precipitation gradients in Europe. Geology, 34: 425–428. Caldwell, M.W. 2005. The squamates: origins, phylogeny, and paleoecology. In: Currie PJ, Koppelhus EB (eds) Dinosaur ...

  • Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa

    Zoran Ž. Miladinović (2012-12-11)
    Jedan od najznačajnijih regiona u Srbiji, sa stanovišta potencijalnosti juvelirskih mneralnih resursa, predstavlja lecki vulkanski kompleks, tercijarne starosti i dominantno andezitskog sastava. Ovaj vulkanski kompleks površine preko 700km2 nalazi se u južnojSrbiji na prostoru imeđu Kuršumlije, Lebana i Medveđe.Prvi su pažnju na juvelirske mineralne sirovine ovog prostora obratili graditeljiJustinijane Prima-e (VI vek). Najintenzivnija istraživanja izvršena su u periodu 1980–1982. ali samo na malom prostoru krajnjeg jugoistočnog dela vulkanskog kompleksa.U Leckom vulkanskom kompleksu dominiraju andezitske stene i njihovi piroklastiti.Smatra se ...
    vulkanski kompleks, mineragenetske karakteristike, juvelirski mineralni resursi, nalazišta, potencijalnost, kvarc, ametist, ahat, kalcedon, jaspis, prognoza
    ... differential thermal analysis (DTA). Some gemmological analysis were also conducted: refractometry (refractive index determination) and specific gravity (density) measurements. The quality of the gemstone raw material is verified through lapidary processing (gemstone cutting) and the production ...