Претрага
791 items
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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... reducing the risk of serious faults. • Algorithm Applications a.K-Means Clustering - Segments data into clusters, helping to identify normal and anomalous patterns in pump operation. b.DBSCAN (Density-Based Spatial Clustering of Applications with Noise) - Identifies dense areas of data and ...
... Flow sensors are essential devices in many industrial, commercial, and research applications as they enable accurate measurement of the speed and quantity of fluids or gases passing through a system. Their applications span various sectors such as the energy industry, chemical manufacturing, water ...
... the stroke converter. Data on the stroke and load of the smooth rod for one complete pump cycle (upstroke and downstroke) are transferred to a computer, where a developed model is used to process the data based on pre-set parameters such as rod string, pumping speed, and damping factor. The result ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Allchar deposit in Republic of Macedonia: Petrology and age determination
Boev Blažo, Jelenković Rade (2011)Boev Blažo, Jelenković Rade. "Allchar deposit in Republic of Macedonia: Petrology and age determination" in Petrology - New Perspectives and Applications, Rijeka, Hrvatska:University Campus (2011): 131-168
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Mean field approximation for noisy delay coupled excitable neurons
Burić Nikola, Ranković Dragana, Todorović Kristina, Vasović Nebojša. "Mean field approximation for noisy delay coupled excitable neurons" in Physica A: Statistical Mechanics and its Applications 389 no. 19, Amsterdam:Elsevier (2010): 3956-3964
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Framework for biomass project selection at local level — the case study
Ivezić Dejan, Gluščević Miodrag, Ivić Milica. "Framework for biomass project selection at local level — the case study" in 4th International Symposium on Environmental Friendly Energies and Applications (EFEA), Beograd:IEEE (2016). https://doi.org/10.1109/EFEA.2016.7748801
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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 ...... different ways for language processing, especially in text extraction and organizing, as well as in an effort to make human- computer interaction more natural in applications like chatbots. A chatbot needs to be able to recognize different lexical units that evoke the same event or refer to the same ...
... referred to as schema, scenario, cognitive model, folk model, etc. (Fillmore 1982, 111). 2. The project has been in development at The International Computer Science Institute in Berkeley since 1997. 8 Infotheca Vol. 21, No. 1, September 2021 Scientific paper 1.2 Frame semantics lexical analysis Frame ...
... set of all valence patterns that a particular LU uses makes up a valence description (Atkins, Fillmore, and Johnson 2003, 255–257). 1.5 Different applications of FrameNet FrameNet is available on the website. It can be searched and scrolled through online, but also downloaded and used locally. As the ...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
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A Method for Extracting Translational Equivalents from Aligned Texts
Obradović Ivan (2013)Obradović Ivan. "A Method for Extracting Translational Equivalents from Aligned Texts" in Methods and Applications of Quantitative Linguistics, Selected papers of the 8th International Conference on Quantitative Linguistics (QUALICO) in Belgrade, Serbia, April 26-29, 2012, Ivan Obradović, Emmerich Kelih, Reinhard Köhler (eds.), :University of Belgrade & Academic Mind (2013): 119-129
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Lithosphere geodynamics inferred from study of mantle xenoliths
Vladica Cvetković (2023)Vladica Cvetković. "Lithosphere geodynamics inferred from study of mantle xenoliths" in International Conference on Recent Trends in Geoscience Research and Applications 2023, Belgrade, Serbia & Virtual, October 23–27, 2023, Beograd (2023)
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Shear strength of municipal waste materials from two landfills in Serbia
Rakić Dragoslav, Čaki Laslo, Ćorić Slobodan. "Shear strength of municipal waste materials from two landfills in Serbia" in Coupled Phenomena in Environmental Geotechnics (CPEG) – from theoretical and experimental research to practical applications, Torino, Italy:CRC Press, Taylor & Francis Group (2013): 347-354
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Coherent oscillations in minimal neural network of excitable systems induced by time delay
Vasović Nebojša, Burić Nikola, Grozdanović Ines, Todorović Kristina. "Coherent oscillations in minimal neural network of excitable systems induced by time delay" in 11th Symposium on Neural Network Applications in electrical Engineering, Beograd:Faculty of Electrical Engineering (2012)
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Risk assessment model of mining equipment failure based on fuzzy logic
D. Petrović, Tanasijević Miloš, V. Milić, Lilić Nikola, Stojadinović Saša, Igor Svrkota. "Risk assessment model of mining equipment failure based on fuzzy logic" in Expert Systems with Applications 41 (2014): 8157-8164
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INVENTS: A Hybrid Mine Ventilation Planning and Design System
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... VENTEX system. VENTEX was developed using an expert systems shell, the KAPPA-PC applications development system. KAPPA-PC is a MS Windows application which provides a wide range of tools for constructing and using applications by means of a high-level graphical environment which generates standard C code ...
... contemporary mine theory and practice differs substantially from the traditional approach. The novel approach uses all possibilities offered by computer hardware and software that are at the disposition of mine engineers. Software packages for mine ventilation simulation obtained a key role in the ...
... of ventilation systems - VENTEX. Software packages ResNet and SimVent as well as the expert system Ventex are developed for IBM PC and compatible computer systems. ResNet is a program that enables the calculation of aerodynamic resistance values on basis of measured ventilation parameters in underground ...Lilić Nikola, Stanković Ranka, Obradović Ivan. "INVENTS: A Hybrid Mine Ventilation Planning and Design System" in Proceedings of International Scientific Conference of FME Session 4: Automation Control and Applied Informatics , Hong Kong : iConcept Press (2013)
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INVENTS: a hybrid system for subsurface ventilation analysis
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... VENTEX system. VENTEX was developed using an expert systems shell, the KAPPA-PC applications development system. KAPPA-PC is a MS Windows application which provides a wide range of tools for constructing and using applications by means of a high-level graphical environment which generates standard C code ...
... contemporary mine theory and practice differs substantially from the traditional approach. The novel approach uses all possibilities offered by computer hardware and software that are at the disposition of mine engineers. Software packages for mine ventilation simulation obtained a key role in the ...
... of ventilation systems - VENTEX. Software packages ResNet and SimVent as well as the expert system Ventex are developed for IBM PC and compatible computer systems. ResNet is a program that enables the calculation of aerodynamic resistance values on basis of measured ventilation parameters in underground ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "INVENTS: a hybrid system for subsurface ventilation analysis" in Proc. of International Scientific Conference of FME, September 2000, Ostrava, FME (2000)
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Resursi nafte i gasa u Srbiji: perspektivna područja, konvencionalni i nekonvencionalni potencijal
Kostić Aleksandar (2010)Kostić Aleksandar. "Resursi nafte i gasa u Srbiji: perspektivna područja, konvencionalni i nekonvencionalni potencijal" in Mineralno-sirovinski kompleks Srbije danas: izazovi i raskršća, Beograd:Akademija inženjerskih nauka Srbije, Rudarsko-geološki fakultet Univerziteta u Beogradu, Privredna komora Srbije (2010): 329-349
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Crystal structure of the body-centered tetragonal tectosilicate K1.13Al1.13Si0.87O4
Vulić Predrag, Lazić Biljana, Kremenović Aleksandar. "Crystal structure of the body-centered tetragonal tectosilicate K1.13Al1.13Si0.87O4" in XX Conference of the Serbian Crystallographic Society-Abstracts, Avala, Beograd, Srbija:Srpsko kristalografsko društvo (2013): 54-55
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Reinvestigation of pure Na-nepheline like compounds obtained from thermal conversion of LTA-zeolite
Vulić Predrag, Kahlenberg Volker, Dimitrijević Radovan. "Reinvestigation of pure Na-nepheline like compounds obtained from thermal conversion of LTA-zeolite" in XVIII Conference of the Serbian Crystallographic Society-Abstracts, Andrevlje, Fruška Gora, Srbija:Srpsko kristalografsko društvo (2011): 32-33
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Correaltion of different types of spatial data to define neotectonic active faults in the čačak–kraljevo basin (western Serbia).
Mladenović Ana, Petrović Dragana (2013)Mladenović Ana, Petrović Dragana. "Correaltion of different types of spatial data to define neotectonic active faults in the čačak–kraljevo basin (western Serbia)." in Theories and applications in geomathematics, :Geolitera (2013): 117-128
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Tailoring of Multifunctional KAlSiO4 - KAlSi2O6 Based Ceramic Materials
Antić Bratislav, Bošković Marko, Vulić Predrag, Spasojević Vojislav, Kremenović Aleksandar. "Tailoring of Multifunctional KAlSiO4 - KAlSi2O6 Based Ceramic Materials" in YUCOMAT 2012 : Programme and the book of abstracts / Fourteenth Annual Conference, Herceg Novi, September 3-7, 2012, Belgrade:Materials Research Society of Serbia (2012): 54-54
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Monoclinic structure and nonstoichiometry of ‘KAlSiO4-O1’
Kremenović Aleksandar, Lazić Biljana, Krüger Hannes, Tribus Martina, Vulić Predrag. "Monoclinic structure and nonstoichiometry of ‘KAlSiO4-O1’" in Acta Crystallographica Section C 69 no. 4, Copenhagen:International Union of Crystallography by Munksgaard (2013): 334-336. https://doi.org/10.1107/S0108270113006069
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Stochastic nature of earthquake ground motion
Kostić Srđan, Vasović Nebojša, Perc Matjaz, Toljić Marinko, Nikolić Dobrica. "Stochastic nature of earthquake ground motion" in Physica A: Statistical Mechanics and its Applications 392 no. 18, Amsterdam:Elsevier (2013): 4134-4145
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Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)
This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...... International Journal of Coal Geology, 68: 70–78. Espitalié, J., Deroo, G. & Marquis, F., 1985. La pyrolyse Rock-Eval et ses applications. Deuxième partie. Oil & Gas Science and Technology. L’Institut Français du Pétrole Energies Nouvelles, 40: 755–784. Espitalié, J., Laporte, J. L., Madec, M., Marquis ...
... International Journal of Coal Geology, 68: 70-78. Espitalié, J., Deroo, G. & Marquis, F., 1985. La pyrolyse Rock-Eval et ses applications. Deuxiéme partie. Oil & Gas Science and Technology. L'Institut Francais du Pétrole Energies Nouvelles, 40: 755-784. Espitalié, J., Laporte, J. L., Madec, M., Marquis ...
... characterization and its application to basin modeling. In: Mukhopadhyay, P. K. & Dow, W. G. (eds), Vitrinite Re�ectance as Maturity Parameter – Applications and Limitations. American Chemical Society, Washington, DC, pp. 1–24. Natević, Lj. & Petrović, V., 1970. Osnovna geološka karta SFRJ 1:100000 ...Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić. "Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)" in Annales Societatis Geologorum Poloniae (2021). https://doi.org/10.14241/asgp.2021.16