Претрага
248 items
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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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Palaeoflora of Kamenica (Pranjani Basin, western Serbia)
Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...... Oligocene-early Miocene. The Zapadna Morava Gra ben, also known as the Čačak-Kraljevo Basin, is the largest Intradinaric de- pression which extends NW–Se. Block downthrows along NW–Se faults and later ruptures of e-W and some of Ne–SW trends, controlled the formation of the Graben and its geometry. a characteristic ...
... pecially Glyptostrobus, Pinus, Sequoia and Tetraclinis. The representatives of the broad-leaved evergreen forests are Laurus, Magnolia, “Quercus”, etc. Key words: Macroflora, Late Oligocene, Pranjani Basin, Kamenica Апстракт. Палеогене флоре у Србији су релативно ретке, посебно у по - ређењу са неогеним ...Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević . "Palaeoflora of Kamenica (Pranjani Basin, western Serbia)" in Geološki anali Balkanskog poluostrva, Beograd : Rudarsko-geološki fakultet (2019). https://doi.org/10.2298/GABP1902053L
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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... ore reserves, and K+ — coefficient of ore de- pletion. The considered mining: technology options, based on the natural setting, included: Ai — block caving, Ao — sublevel caving, A3 — cutting and filling, and Aa – room and pillar mining. The proposed fuzzy optimization methodology was applied ...
... system, which will contribute to sustainable production in the future. A case study to which the model was applied is presented in the paper. Key words: mining; technology, expert evaluation, triangular fuzzy num- bers, multicriteria, decision making, Introduction. Mine management optimization ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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Definisanje strukturnih odnosa primenom postupka horizontalni gradijent
Različiti postupci matematičkih transformacija se mogu primeniti na gravimetrijskim i magne tometrijskim podacima, kako bi se na istražnom terenu definisali strukturno-tektonski odnosi. U radu su prikazani rezultati dobijeni korišćenjem postupka horizontalni gradijent i ukupni horizontalni gradijent na gravimetrisjkim podacima. Navedeni postupci su pomogli da se detektuju kontakti sa velikim padnim uglom (vertikalni ili subvertikalni kontakti), koji se mogu interpretirati kao rasedi. Za test područije uzet je istražni prostor koji se nalazi na jugoistoku Srbije u okolini Vranjskog basena. Položaji ...... Tumač za gravimetrijsku kartu SFR Jugoslavije – Bu- geove anomalije 1:500 000, Savezni geološki zavod, Beograd, 1979. [3] Blakely J. R, Potential theory in gravity and Mag- netic application, Cambridge University Press, Ca- mbridge, 1995. [4] Saad H. A, Understanding gravity gradients, The ...Snežana Ignjatović, Ivana Vasiljević, Natalija Jovanović. "Definisanje strukturnih odnosa primenom postupka horizontalni gradijent" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2019). https://doi.org/10.5937/tehnika1905664I
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Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu. "Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08910-x
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...... production, the limits of the applicability of artificial lift methods are constantly moving, which affects the conditions for their application. The theory of fuzzy sets and, in general, fuzzy logic is a conceptual and mathematical tool for modeling different processes dominated by uncertainty, multi ...
... online: https://halliburtonblog.com/artificial-lift- and-the-5-ps/ (accessed on 26 March 2020). 17. Klir, G.J.; Yuan, B. Fuzzy Sets and Fuzzy Logic: Theory and Applications. J. Chem. Inf. Comput. Sci. 1996, 36, 619. Energies 2020, 13, 1758 15 of 15 18. Wang, J.; Yang, J.B.; Sen, P. Safety analysis ...
... [CrossRef] 21. Miodragovic, R.; Tanasijevic, M.; Mileusnic, Z.; Jovancic, P. Effectiveness assessment of agricultural machinery based on fuzzy sets theory. Expert Syst. Appl. 2012, 39, 8940–8946. [CrossRef] 22. Tanasijević, M.; Ivezić, D.; Jovančić, P.; Ćatić, D.; Zlatanovic, D. Study of Dependability ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Improvement of geodatabase queries within GeolISS
Ranka Stanković (2008)... morphologically expanded query Semantic expansion can include synonyms, obtained by geological dictionary, for example: − Fold ‘nabor → bora’ − Block faulting ‘blok stene → stenoviti blok, monolit’ − Abyss, Swallow hole ‘bezdan → ponor’ − Lower Pliocene ‘donji pliocen → pont’ − Artesian spring ...
... important in highly inflective languages, such as Serbian, which is outlined in section 4. Evaluation of query improvement is described in section 5. Key words: GIS, digital archiving of geologic data, query expansion 1. GIS approach to digital archiving of geologic data The main goal in many ...Ranka Stanković. "Improvement of geodatabase queries within GeolISS" in Review of the National Center for Digitization, Beograd : Faculty of Mathematics, Belgrade (2008)
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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... higher representation among participants than computer science, and that the school was well-focused, well-balanced topic-wise and well organized. Theory sessions, tutoring, and the opportunities to learn were very highly evaluated. On the other hand, due to the virtual mode, there is still room for ...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
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A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...... a hierarchical structure and for dealing with uncertainty in a decision-making process, FAHP appeared to be a useful tool. FAHP combines the fuzzy theory and the AHP method. The AHP method structures a problem hierarchically, descending from an objective to criteria, sub-criteria, and alternatives in ...
... 3. Materials and methods 3.1. Fuzzy AHP method As the method of the MCDA, FAHP systematically solves the problem using the concepts of fuzzy set theory and hierarchical structure analysis, typical for the AHP method. The model for prioritizing RESs for energy generation first divides the objective ...
... resources selection for Pakistan: Based on SWOT-fuzzy AHP approach. Sustain Cities Soc 52 (2020), 101861. Zadeh, L.A., 1978. Fuzzy sets as a basis for a theory of possibility. Fuzzy Sets Syst 1 (1), 3–28. 9 https://www.energy-community.org/dam/jcr:f2d4b3b8-de85-41b2-aa28-142854b65903/Decision_2012_04_MC_RE ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072
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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)... and Planetary Change 195 (2020) 103361 15 exhumation of the metamorphosed Paleozoic sediments in their footwall (Fig. 7), suggesting a listric or block tilting geometry. These bordering normal faults decrease their offsets laterally along their strike, which imply increased amounts of extension in ...
... Inset illustrates the fault surface in detail with striations that indicate dextral shearing (green arrow shows the relative movement of the missing block). c) Fault breccia associated to NW-SE oriented dextral strike-slip fault zone at location Cg2. d) NNE-SSW oriented sinistral fault in Tithonian limestones ...
... fault breccia (inset, blue half arrow). Studied site Go1. h) N-S oriented dextral fault (green arrow illustrates relative movement of the missing block) and ESE-WNW oriented normal fault (blue arrow indicates relative movement of the footwall). Interaction and superposition of faults are not clear ...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
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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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Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry
Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalizationSteven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti. "Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945979
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Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara
U radu je izvršena uporedna analiza pouzdanosti transportnih sistema dozera koji rade na površinskim kopovima Rudarskog basena Kolubara. Period za koji je vršena analiza je prvih deset godina eksploatacije. Efikasnost tehnološkog procesa na otkopavanju korisne mineralne sirovine i otkrivke u velikoj meri zavisi od rada dozera. Iskorišćene su matematičke metode za aproksimaciju i identifikaciju zabeleženih vremena u radu, kako bi se dobili analitički pokazatelji pouzdanosti. Na ovaj način se bitno podiže kvalitet upravljanja procesom eksploatacije i održavanja mašina na ...... delova i sistema u okruženju Microsoft Excel, Infoteh–Jahorina Vol. 10, Ref. C-8, p. 273-277, Mart 2011; [8] Ashish S., Muni S. Regression analysis - Theory, Methods, and Applications, Springer-Verlag New York, 1990.; [9] Milčić D. Pouzdanost mašinskih sistema, Univerzitet u Nišu, Mašinski fakultet, 2005 ...Filip Miletić, Dragan Milčić, Miloš Tanasijević, Miloš Milovančević. "Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7
Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...... GEOLOGICAL CONDITIONS IN THE ZONE OF HIGHWAY ROUTE Regional rupture pattern indicates two systems of perpendicular structures that form a block structure of investigated terrain (Figure 2). The most prominent is the fracture zone in the central part of the route in Prokuplje area, general ...Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković. "Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7" in Proceedings of the XVII European Conference of Soil Mechanics and Geotechnical Engineering ECSMGE-2019, Reykjavik, Iceland, 1-6. 09. 2019., ISSMGE, ECSMGE-2019 (2019). https://doi.org/10.32075/17ECSMGE-2019-0393
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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 – ...... (Fig. 8). Only the housing sector land use types entered the inventory of elements at risk, since only these had precise population estimates per block. The final map was averaged across housing blocks, since they represent the target risk units. 5 DISCUSSION AND CONCLUSION Figures 5-7 indicate ...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)
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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)
... geometry of all structural elements formed during D were probably disturbed further during the subsequent events involving magmatic intrusions and block rotations in the brittle regime. The majority of the observed kinematic indicators in central SMM suggest south-eastward direction of tectonic ...
... Vranjska Banja area. Furthermore, the observed scat- ter in the orientation of stretching lineation and shear sense indicators could be a result of block rotation in the brittle regime during the Alpine orogeny, which had considerably 1683 reshaped this area (Antić et al. 2015a). Additionally, the ...
... Kydonakis K, Brun J-P, Sokoutis D, Gueydan F (2015a) Kinemat- ics of Cretaceous subduction and exhumation in the western Rhodope (Chalkidiki block). Tectonophysics 665:218—235. doi:10.1016/j.tecto.2015.09.034 Kydonakis K, Moulas E, Chatzitheodoridis E et al (2015b) First-report on Mesozoic ...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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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)Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt. "Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s00531-015-1266-z
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GIS Application Improvement with Multilingual Lexical and Terminological Resources
... Database with Lexical Semantic Networks. Dordrecht: Kluwer Academic Publishers ISO (2000). 1087-1, Terminology work -- Vocabulary -- Part 1: Theory and application. ISO (2008). ISO/TC 37/SC 4 N453, N330 Rev.16, ISO FDIS 24613, Language resource management — Lexical markup framework (LMF) ...Ranka Stanković, Ivan Obradović, Olivera Kitanović. "GIS Application Improvement with Multilingual Lexical and Terminological Resources" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta, May 2010, Valetta, Malta : European Language Resources Association (2010)
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Formative evaluation of e-learning projects with the logical framework approach
... instruction in e-learning, Innovations in Education & Teaching International, 43(1), 2006. [19] Stufflebeam D.L., Shinkfield A.J., Evaluation Theory, Models, and Applications, Jossey-Bass, San Francisco, CA, 2007. [20] Stufflebeam D.L., New directions for evaluation, no. 89, Spring 2001, ...
... recognizes the critical role of the 'internal coherence', in the design phase, for the ultimate success of the project. Internal coherence is a key element of analysis both for the project's funder, and for the applicant organization. There are different EMs that focus on the internal ...
... can be defined as a simple and effective methodology to assess the internal coherence and consistency of a project, through the identification of key management elements (activities, resources, outputs, purposes / objectives), functions (social, technical, economic, environmental, etc.) that ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)