Претрага
121 items
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Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta
Ksenija Gredić (2024)Katedra za Geotehniku održala je sednicu na kojoj mi je odobrena tema za završnirad pod naslovom “Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta” u opštini Kotor.Za mentora je izabran van.prof.Miloš Marjanović, dok za članove komisije su izabrani prof.dr. Biljana Abolmasov i doc.dr. Zoran Berisavljević. Tokom izrade završnog rada, korišćeni su podaci iz “Elaborata o rekonstrukciji magistralnog puta M-1 (M-2), dionica Lipci-Ljuta, dužine cca 15km”, kao i ostala odgovarajuća stručna literatura. Na osnovu terenskih radova i dobijenih rezultata ...... nci pal s tre ss (M Pa ) 'Sh ear s tre ss (MP a) a i ——— 00 00 02 04 06 08 10 00 02 04 06 08 10 12 14 16 Minor principal stress (MPa) Normal stress (MPa) Fitovani parametri čvrstoće c i o za diskontinuitete u programu RocData. U tabeli broj 4, nalaze se usvojene vrijednosti parametara ...Ksenija Gredić. Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta, 2024
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Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta
Ksenija Gredić (2024)Katedra za Geotehniku održala je sednicu na kojoj mi je odobrena tema za završnirad pod naslovom “Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta” u opštini Kotor.Za mentora je izabran van.prof.Miloš Marjanović, dok za članove komisije su izabrani prof.dr. Biljana Abolmasov i doc.dr. Zoran Berisavljević. Tokom izrade završnog rada, korišćeni su podaci iz “Elaborata o rekonstrukciji magistralnog puta M-1 (M-2), dionica Lipci-Ljuta, dužine cca 15km”, kao i ostala odgovarajuća stručna literatura. Na osnovu terenskih radova i dobijenih rezultata ...... nci pal s tre ss (M Pa ) 'Sh ear s tre ss (MP a) a i ——— 00 00 02 04 06 08 10 00 02 04 06 08 10 12 14 16 Minor principal stress (MPa) Normal stress (MPa) Fitovani parametri čvrstoće c i o za diskontinuitete u programu RocData. U tabeli broj 4, nalaze se usvojene vrijednosti parametara ...Ksenija Gredić. Analiza stabilnosti kosine na magistralnom putu M-1, deonica Lipci-Ljuta, 2024
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Одређивање оптималне производње дубинске пумпе на клипним шипкама
Небојша Савић (2024)Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...... Diameter (mm) |___RodGrade. ] Lengih | Mam Tem. | Foc. | Swess | TopMMaximum | Top Mammum | Bot Mimmum | __# Gudes/Rod (m} Ser (kPa) Cođlr Ln•d'/:i Stress (kPa) SI–M) | &_–•(W·) 222 TEND Allov 6M4 | 827371 | O2 | 587% 180155 90874 56631 o 91 TEND Allov 140 | 827371 | O2 | 595%% 163018 74053 68323 o ...
... Pump efficiency/fdlaqe | 41%/95% | Fiecommended plunaor lenqth (m)- 5 Plunqer size (mm) 38 1 Pumop fnction (N)- 890 Rod string design Rod string stress analysis (service factor: 0.9) Diameter (mm) | __RodGrado # Guides/Rod 222 TEND Alov o >»>22 TEND Alov 3 191 TEND Allv 3 191 TEN D Alov o 191 ...
... type- insert Pumo vol, efficiency: 72% Recorenended plunqer lenqth (m) 8 Plunqer size (memn) 38 1 Puro frictvon (N}: 890 Rod string design Rod string stress analysis (service factor: 0.9) Diameter (mm) RodGradoe LW M Tenm. | Fnc, | Svwess | TopMaximum | Top Minimum | Bot Minimmum # Guides/Rod Se (kPa) ...Небојша Савић. Одређивање оптималне производње дубинске пумпе на клипним шипкама, 2024
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Contribution to the geotechnical classification of municipal waste landfills in Serbia
Management, Monitoring, Policy and Law, Nature and Landscape Conservation, Geochemistry and Petrology, Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental EngineeringDragoslav Rakić, Irena Basarić, Laslo Čaki, Slobodan Ćorić. "Contribution to the geotechnical classification of municipal waste landfills in Serbia" in Environmental Geotechnics, Thomas Telford Ltd. (2018). https://doi.org/10.1680/jenge.18.00028
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Advantages and challenges in presenting mathematical content using EDX platform
... increasing, which means that production and exploitation of mathematical content using information technology (IT) is in progress [6]. Experts stress the importance of using TPACK framework (Image 4) in creating mathematical content. TPACK has been presented as a system which interconnects ...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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Laboratory testing of fly ash
Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction... 13286-42 [19]. 2.4.3 The modulus of elasticity The modulus of elasticity represents the relationship between stress and deformation. Physical dimension of the modulus is the stress and is expressed in MPa. The experiment was done according to standard EN 13286-43 [20]. 3 Results and discussion ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Laboratory testing of fly ash" in Tehnički vijesnik (2016). https://doi.org/10.17559/TV-20150317171035
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A Description of Morphological Features of Serbian: a Revision using Feature System Declaration
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...... information need not be important for some applications (like tagging) but can be for the other (generation). 3. One Illustrative Example To stress the points stated above, we will illustrate how the problem of ‘paukal’ is solved in morphosyntactic descriptions used by various applications. It ...Cvetana Krstev, Ranka Stanković, Vitas Duško. "A Description of Morphological Features of Serbian: a Revision using Feature System Declaration" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta : European Language Resources Association (2010)
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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Mehanizam nastanka bjelasičke klipe u internim Dinaridima severne Crne Gore
Katarina Stefanović (2024)Bjelasička klipa predstavlja segment Internih Dinarida na području severne Crne Gore. Područje obuhvata tektonski kontakt Drinsko-ivanjičke jedinice i Istočnobosansko-durmitorske jedinice, pri čemu se na širem području nalaze i jedinice Prekarst i Zona bosanskog fliša. Tektonska klipa Drinsko-ivanjičke jedinice, odnosno bjelasička klipa, kao i generalna tektonska evolucija područja u kom se ona nalazi, nisu izučeni u adekvatnoj meri. Stoga je cilj ovog rada pribavljanje novih podataka o tektonskoj evoluciji bjelasičke klipe, koji mogu biti značajan prilog za bolje poznavanje geodinamičke ...Interni Dinaridi, paleonaponska analiza, bi-direkciona ekstenzija, rased Skadar-Peć, dekstralno smicanje... Dovćnyi, P., Szafi4n, P., Windhoffer, G., Cloetingh, S., 2007. Present-day stress field and tectonic inversion in the Pannonian basin, Global and Planetary Change, 58 (1—4), str. 105—180. Delvaux, D., Sperner, B., 2003. Stress tensor inversion from fault kinematic indicators and focal mechanism data: ...
... Planet. Chang. 182, str. 1 — 21. Van Unen, M., Matenco, L., Nader, F. H., Darnault, R., Mandic, O., Demir, V., 2019. Kinematics of foreland-vergent crustal accretion: Inferences from the Dinarides evolution. Tectonics, 38, str. 40-76. Živaljević, M., Vujisić, P., Mirković, M., Đokić, V., Čelić, M. ...
... | % f __ee_J o | owWz345ST789 a O K Te dE av Wit TE TOOO _— StemAmt Av.Umc Ic Datald Compiled dote SubsetIndex Optmrsatoon Results (Resolved stress) Comments Kınemntc axes Mopi [[ Trpe|Plane |une _|Senselci|wt TAct[Se |inputTmp|workng|Snear |SenselAupha |p Ju-DistNmag|Tmag| F5___ype| pind|pAom ...Katarina Stefanović . Mehanizam nastanka bjelasičke klipe u internim Dinaridima severne Crne Gore, 2024
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
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. ...... of quality information i.e. a small number of measured structural elements (no systematic measurements of the direc- tion of inclination of layers, stress analysis, etc.) as well as the morphological diversity of the area were the main reasons for geomorphologic consideration in order to try to identify ...
... measured dip direction and dip angle of the fault (214/48) is part of the reverse faults which were reactivated in the NE-SW ori- ented compressional stress-field. Faults of this direction are sta- tistically recognized as linear structures that belong the first fault system (F1). Furthermore, this structure ...
... 501–527. doi: 10.1016/S0264-3707(98)00013-1 BADA, G., HORVÁTH, F., DÖVÉNYI, P., SZAFIÁN, P., WINDHOFFER, G. & CLOETINGH, S. (2007): Present-day stress field and tectonic inversion in the Pan- nonian basin.‒ Global and Planetary Change, 58, 165–180. doi: 10.1016/j.glopla- cha.2007.01.007 BALÁZS, A ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex
Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males. "Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2024). https://doi.org/10.2298/GABP240116003S
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Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje... Geology, 17(10), 893–896. Morishita, Y., Kobayashi, T., Fujiwara, S. & Yarai, H., 2017. Complex Crustal deformation of the 2016 Kaikoura, New Zealand, earthquake re- vealed by ALOS-2 complex crustal Deformation of the 2016 Kaikoura, New Zealand, earthquake revealed by ALOS-2, Bull. seism. Soc. Am ...
... tectonics: extensional; Con- tinental tectonics: strike-slip and transform; Fractures, faults, and high strain deformation zones; Kinematics of crustal and mantle deformation; Mechanics, theory, and modelling. 1 I N T RO D U C T I O N Determination of the cumulative strain of an object provides insight ...
... within a certain spatial window. Hence, up to this point, we have described deformation in a continuum approach. For our application, deformation in crustal tectonics, deformation is dominantly localized along narrow shear zones, or faults, and we aim to interpret continuous deformation as localized d ...Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
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Keyword-Based Search on Bilingual Digital Libraries
This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović. "Keyword-Based Search on Bilingual Digital Libraries" in Semantic Keyword-Based Search on Structured Data Sources - Second COST Action IC1302 International KEYSTONE Conference, IKC 2016, Springer (2017). https://doi.org/10.1007/978-3-319-53640-8_10
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Knowledge and Rule-Based Diacritic Restoration in Serbian
In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).... a unit of thought, regardless of the terms that express it (NISO, 2005). Contemporary standards for developing of information-retrieval thesauri stress that thesaurus relations are established between concepts, not between terms (Clarke and Zeng, 2012). However, information-retrieval thesauri are ...Cvetana Krstev, Ranka Stanković, Duško Vitas. "Knowledge and Rule-Based Diacritic Restoration in Serbian" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018): 41-51
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The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines
In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval... inflection of both simple and compound words have been developed for the Unitex system (http://www-igm.univ-mlv.fr/~unitex/). It is important to stress that WS4QE does not rely only on a simple list of word forms for Serbian simple and compounds words, but on the inflectional transducers as well ...Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan. "The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines" in LREC 2008: Conference on Language Resources and Evaluation, Marrakesh, Morocco, May 2008, European Language Resources Association (ELRA) (2008)
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The effect of finite driving rate on avalanche distributions
Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear PhysicsSonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević. "The effect of finite driving rate on avalanche distributions" in Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing (2021). https://doi.org/10.1088/1742-5468/ac1f12
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Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... place again during the Alpine orog- eny with polyphase opening of the Mesozoic Tethys and its consequent closure involving collision of multiple crustal segments (e.g. Robertson et al. 1991; Ricou 1994; Schmid et al. 2008; Stampfli and Hochard 2009). Therefore, to reveal the tectonic evolution ...
... cause for this trend could be the structural level of these units within the Variscan orogen. The amphibolite-grade Lower Complex was in a mid-crustal position, whereas the pre- Ordovician Vlasina with mineral assemblages indicating greenschist facies peak conditions was located within the upper ...
... Vlasina. Vranjska Banja and Božica areas with transitional metamorphic grade between amphibolite and greenschists facies probably held intermediate crustal positions. Abrupt changes in metamorphic grade observed across brittle thrusts in the castern part of the study area could be explained by t ...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
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Automatic construction of a morphological dictionary of multi-word units
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion... lemmas has to be manually checked and some decisions still have to be made even when the procedure offers only one candidate MWU lemma. Thus we have to stress that our dictionaries remain handcrafted resources (as per categorization in [8]) in terms of the information they offer and the methodology used to ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić. "Automatic construction of a morphological dictionary of multi-word units" in Lecture Notes in Computer Science 6233, Advances in Natural Language Processing, Proceedings of the 7thInternational Conference on NLP, IceTAL 2010, Reykjavik, Iceland, August 2010, Springer (2010): 226-237. https://doi.org/10.1007/978-3-642-14770-8_26
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... associated to the gas flaring. This information can assist policymakers and industry stakeholders in understanding the impact of gas flaring and stress the importance of developing targeted strategics to furthcr reduce flaring and minimize the environmental impact of oil production. II METHODOLOGY ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M