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Упит dcterms_subject_txt:Well Modeling

258 items

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit

    Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)
    Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations

  • Modeliranje buke u urbanoj sredini u okolini Doma zdravlja u Pančevu

    Stefan Mandić (2024)
    Prisustvujemo epohi gde buka predstavlja veoma rasprostranjen i moderan fenomen koji možemo deklarisati kao problem. Svedoci smo toga da moderni problemi zahtevaju malo drugačiji pristup nego u prošlosti, odnosno zahtevaju moderna rešenja. Samim tim, vremenom je došlo do modernizacije alata,u ovom slučaju došlo je do razvoja modela za rasprostiranje buke koji su se vremenom unapređivali pa tako danas imamo jedno moćno sredstvo za borbu protiv buke u vidu kompjuterskog softvera.Ovaј master rad, pod nazivom „Modeliranje buke u urbanoj sredini ...
    buka, zvuk, saobraćaj, modeliranje, merenje buke
    ... the form of computer software. This master's thesis, entitled "Noise modeling in the urban environment in the vicinity of the Pančevo Health Center" contains 10 chapters, where all the necessary steps, data, methods, as well as the necessary equipment for creating a model of noise propagation in ...
    ... covers all the necessary steps for the successful creation of a computer model for the purposes of modeling noise propagation in industrial environments. Keywords: Noise, sound, traffic, modeling, noise measurement Modeliranje rasprostranjenosti buke u urbanoj sredini u okolini Doma zdravlja ...
    ... collect the necessary data: measuring noise in the field at the location itself, counting road users, both light and heavy motor vehicles, and finally modeling the spread of the noise impact through computer software. We were able to present three scenarios in order to gain an insight into the real state ...

  • Hydrogeochemistry of Uranium in the Groundwaters of Serbia

    Marina Ćuk, Maja Todorović, Petar Papić, Jovan Kovačević, Zoran Nikić (2015)

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Jamailahmadi M. (2008). Modelling of asphaltene precipitation in well column of Iranian crudes: Kuapl Case Study, Calgary, Alberta, Canada, Petroleum Society Journals. Souza J.N.M., Medeiros J.L., Costa A.L.H., Nunes G.C (2010) Modeling, simulation and optimization of continuous gas lift systems for ...
    ... significant professional contribution. It is reflected in the solving of a number of practical problems in oil production optimization process and the modeling of a new and more efficient oil exploitation technology. Key words: oil, production, optimization, Amal, Libya. Scientific ...
    ... Gas Field Processing, CRC Press. Abdul-Wahab S., Elkamel A., Madhuranthakam C.R., Al-Otaibi M.B. (2006) Building inferential estimators for modeling product quality in a crude oil desalting and dehydration process, Chemical Engineering and Processing: Process Intensification, Volume 45, Issue ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Jamailahmadi M. (2008). Modelling of asphaltene precipitation in well column of Iranian crudes: Kuapl Case Study, Calgary, Alberta, Canada, Petroleum Society Journals. Souza J.N.M., Medeiros J.L., Costa A.L.H., Nunes G.C (2010) Modeling, simulation and optimization of continuous gas lift systems for ...
    ... significant professional contribution. It is reflected in the solving of a number of practical problems in oil production optimization process and the modeling of a new and more efficient oil exploitation technology. Key words: oil, production, optimization, Amal, Libya. Scientific ...
    ... Gas Field Processing, CRC Press. Abdul-Wahab S., Elkamel A., Madhuranthakam C.R., Al-Otaibi M.B. (2006) Building inferential estimators for modeling product quality in a crude oil desalting and dehydration process, Chemical Engineering and Processing: Process Intensification, Volume 45, Issue ...

  • Hibridni sistem za planiranje i analizu ventilacije rudnika

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilacija rudnika, informacioni sistemi
    ... determining air flow distribution throughout the ventilation network, ♦ simulation of climate conditions in mine chambers, ♦ modeling of fire incidence in ventilation networks as well as ♦ gas distribution in ventilation network. The results obtained after the desired analysis by SimVent can be exported ...
    ... okviru ove knjige za fazu analize razvoja softvera usvojen je UML (Unified Modeling Language) kao standardni jezik za vizuelizaciju, specifikaciju, konstruisanje i dokumentovanje činjenica o softveru. UML (Unified Modeling Language) je jezik za modeliranje sistema koji koristi objektno-orijentisane ...
    ... analizu ventilacije rudnika 8 Kako koristiti elektronsku knjigu? Sadržaj knjige UML notacija Index About the book UML UNIFIED MODELING LANGUAGE UML (Unified Modeling Language) je stadardni jezik za specifikaciju, vizuelizaciju i dokumentaciju činjenica vezanih za softverski sistem. Korišćenjem ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... and to ensure that full synergies are achieved. 4. Materials and Methods 4.1. Geodatabase Model The geodatabase model was developed using Unified Modeling Language (UML) and Computer-Aided Software Engineering (CASE) tool Microsoft Visio (Microsoft Corporation: Redmond, WA, USA), which has a developed ...
    ... Information Systems KML Keyhole Markup Language WMS Web Map Service WFS Web Feature Service CASE Computer-Aided Software Engineering UML Unified Modeling Language References 1. Hall, A.; Scott, J.A.; Shang, H. Geothermal energy recovery from underground mines. Renew. Sustain. Energy Rev. 2011, 15 ...
    ... data include: basic data, hydrogeology, biology, geology and mining as well as specific information related to the terrain of abandoned mines [23]. Spatial data in the aforementioned study on terrain of abandoned mines as well as data concerning the remediation of this terrain were generally available ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... portal content by type Topics of content (titles and keywords) are visualised by a word cloud in Figure 3. It can be seen that computer science, modeling and language technologies are dominant. 12 Chapter # - will be assigend by editors Figure ...
    ... received MSc and PhD degrees at the University of Belgrade. Her expertise includes distance learning, intelligent tutoring systems, adaptive user modeling and Semantic Web. She teaches traditional, online and blended IT courses. She was coordinator of the regional Tempus project DL@WEB for improving ...
    ... the acquired knowledge and all learning materials at one place. Table 1 gives well known platforms in Serbia for OER according learner/teacher could examine curriculum and teaching methodology. Table 1. OER well known platforms in Serbia Name of platform Address 1. Open educational ...

  • Opremanje bušotine X zavojnom pumpom

    Milan Filipović (2024)
    Ovaj rad se bavi osnovnim pojmovima i karakteristikama zavojnih pumpi.Prikazan je sklop zavojnih pumpi i njena prateća oprema. Objašnjen je princip rada zavojnih pumpi kao i uloga svakog mašinskog elementa koji se nalazi u pumpi. Razmotrene su prednosti i nedostaci primene ovih primarnih mehaničkih metoda eksploatacije ugljovodonika. Dat je uvid u inovativna rešenja problematike primene zavojnih pumpi. Na konkretnom primeru bušotine X su prikazani problemi kao i rešenja primene ovih primarnih mehaničkih metoda u praksi. Napravljena je detaljna analiza ...
    zavojne pumpe, oprema, primarne mehaničke metode, ugljovodonici, analiza rada
    ... y-pump-design-makes-maintenance-a-breeze • Zhu,J. & Zhang H.Q. (2018). "A Review of Experiments and Modeling of Gas&Liquid Flow in Electrical Submersible Pumps", project: Mechanistic modeling in Electrical Submersible Pumps (ESP) Soleša, M., Danilović, D., Buza, Z. (1999). "Sistem analiza p ...
    ... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Univerzitet u Beogradu Rudarsko-geološki fakultet Završni ...
    ... Operations Pty Ltd; D. Basima, Ministry of Energy and Milerals Development of Uganda, "First Application of Progressive Cavity Pumps for Appraisal Well Testing in the Ugandan Albertine Graben Basnin", San Antonio, Texas, 2012 • Heriot-Watt Manual, Heriot-Watt University, "Production Technology 2" ...

  • Mogućnost infracrvene termografije pri detekciji štetnih gasova

    Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković (2021)
    Curenje pojedinih gasova je opasnost koja može da izazove velike nezgode. Često je praćeno požarima i eksplozijama koji za posledicu mogu da imaju kako ljudske povrede, tako i štetan uticaj na ekologiju i ekonomiju. Da bi se izbegle takve situacije, preventivna inspekcija je od presudne važnosti. Curenje većine gasova se ne može uočiti golim okom a za otkrivanje i procenu stepena curenja može se koristiti tehnologija toplotnog snimanja (infracrvena termografija). U datom radu predstavljene su mogućnosti i ograničenja primene ...
    IC termografija, curenje gasa, termogram

  • Conversion of land areas after coal mine closure and reclamation

    Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić (2023)
    Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.
    rekultivacija, melioracija, revitalizacija, otkopavanje uglja, održivi razvoj
    ... training: ground for experimental analysis of the choice of the type of reclamation and the appropriate arrangement of the landscape. Such process modeling of the unified reclamation system foresees a total of 10 alternative possibilities for designing reclamation contents and arranging the post-exploitation ...
    ... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 9 International Conference MINING AND ENVIRONMENTAL PROTECTION ...
    ... RECULTIVA TION This paper is part of research applied to the coal open pit Drmno, which has as general objectives as impact of mining in the area, as well as ecological conversion solutions for coal open pit Drmno (one of the open pits of Kostolac Basin Mining Basin), favoring significant opportunities ...

  • XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit

    Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić (2024)
    Čukaru Peki, epithermal mineralization, hydrothermal alterations

  • Bridging Computational Lexicography and Corpus Linguistics: A Query Extension for OntoLex-FrAC

    Christian Chiarcos, Ranka Stanković, Maxim Ionov, Gilles Sérasset (2024)
    OntoLex, dominantni standard zajednice za mašinski čitljive leksičke resurse u kontekstu RDF-a, Linked Data i tehnologija Semantičkog veba, trenutno se proširuje sa posebnim modulom za Frekvencije, Primere i Informacije zasnovane na Korpusu (OntoLex-FrAC). Predlažemo novi komponent za OntoLex-FrAC, koji se bavi inkorporacijom korpusnih upita za (a) povezivanje rečnika sa korpusnim mašinama, (b) omogućavanje RDF baziranih web servisa da dinamički razmenjuju korpusne upite i podatke odgovora, i (c) korišćenje konvencionalnih upitačkih jezika za formalizaciju unutrašnje strukture kolokacija, skica reči i ...
    standardizacija, digitalna leksikografija, OntoLex, upiti korpusa, povezani podaci, Lingvistički povezani otvoreni podaci

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... data, generating of a cadastre of exploratory and exploited areas, data export, as well as web search and visualization [9]. 2.3 Geodatabase model The geodatabase model was developed using UML (Unified Modeling Language) and CASE (Computer- Aided Software Engineering) tool Microsoft Visio, which ...
    ... data include: basic data, hydrogeology, biology, geology and mining as well as specific information related to the terrain of abandoned mines [7]. Spatial data in the aforementioned study on terrain of abandoned mines as well as data concerning the remediation of this terrain were generally available ...
    ... landfills within the mining waste field, as well as other data related to the management of mining waste. In the cadastre of abandoned mines and mining facilities data on the position and status of those mines and mine facilities are entered, as well as data on implemented measures for remediation ...

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... 03:44:00 Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija;Nonlinear dynamical modeling of seismic events induced by stress change due to excavation of horizontal underground chambers Srđan D. Kostić Дигитални репозиторијум Руда ...
    ... РГФ] Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija;Nonlinear dynamical modeling of seismic events induced by stress change due to excavation of horizontal underground chambers | Srđan D. Kostić | Универзитет у Београду | 2013-11-04 ...
    ... Beograd, 2013.g. UNIVERSITY OF BELGRADE FACULTY OF MINING AND GEOLOGY Srđan D. Kostić NONLINEAR DYNAMICAL MODELING OF SEISMIC EVENTS INDUCED BY STRESS CHANGE DUE TO EXCAVATION OF HORIZONTAL UNDERGROUND CHAMBERS Doctoral Dissertation ...

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... 03:47:18 Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija;Nonlinear dynamical modeling of seismic events induced by stress change due to excavation of horizontal underground chambers Srđan D. Kostić Дигитални репозиторијум Руда ...
    ... РГФ] Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija;Nonlinear dynamical modeling of seismic events induced by stress change due to excavation of horizontal underground chambers | Srđan D. Kostić | Универзитет у Београду | 2013-11-04 ...
    ... Beograd, 2013.g. UNIVERSITY OF BELGRADE FACULTY OF MINING AND GEOLOGY Srđan D. Kostić NONLINEAR DYNAMICAL MODELING OF SEISMIC EVENTS INDUCED BY STRESS CHANGE DUE TO EXCAVATION OF HORIZONTAL UNDERGROUND CHAMBERS Doctoral Dissertation ...

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... stockpile reduce variation?. Chemometrics and intelligent laboratory systems, 74(1), pp.121-133. 7. Statsenko, L. and Melkoumian, N.S., 2014. Modeling Blending Process at Open-Pit Stockyards: A Northern Kazakhstan Mining Company Case Study. In Mine Planning and Equipment Selection (pp. 1017-1027) ...
    ... ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs COAL HOMOGENIZATION STOCKYARD SIZING, “TAMNAVA – ZAPAD” ...
    ... is & Agioutantis, 2001) For "Tamnava Zapodno-Polje" a simulation was run on a small test site using data from the technological block model, as well as simulated data based on statistical parameters: average value and standard deviation. It should be pointed out that increasing the number of ...

  • Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG

    Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić (2024)
    CIII-RS-0038, Recon Tethys, DEMONITOR, TMCmod, REASONING