Претрага
22 items
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Hydrogeological Characteristics of Northern Arabian Peninsula "Iraqi Western Desert"
Abdul Aziz Alrawi Ibrahim (1979)Abdul Aziz Alrawi Ibrahim. Hydrogeological Characteristics of Northern Arabian Peninsula "Iraqi Western Desert", Belgrade:Faculty of Mining and Geology, 1979
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Geološko-ekonomska efektivnost istraživanja niskomanganskih ruda gvožđa u SR BiH
Ibrahim Kličić (1984)Ibrahim Kličić. Geološko-ekonomska efektivnost istraživanja niskomanganskih ruda gvožđa u SR BiH, 1984
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U-Pb zircon geochronology of the Paleogene – Neogene volcanism in the NW Anatolia: Its implications for the Late Mesozoic-Cenozoic geodynamic evolution of the Aegean
E. Yalçın Ersoy, Cüneyt Akal, Ş. Can Genç, Osman Candan, Martin R. Palmer, Dejan Prelević, İbrahim Uysal, Regina Mertz-Kraus (2017)The northern Aegean region was shaped by subduction, obduction, collision, and post-collisional extension processes. Two areas in this region, the Rhodope-Thrace-Biga Peninsula to the west and Armutlu-Almacık-Nallıhan (the Central Sakarya) to the east, are characterized by extensive Eocene to Miocene post-collisional magmatic associations. We suggest that comparison of the Cenozoic magmatic events of these two regions may provide insights into the Late Mesozoic to Cenozoic tectonic evolution of the Aegean. With this aim, we present an improved Cenozoic stratigraphy ...E. Yalçın Ersoy, Cüneyt Akal, Ş. Can Genç, Osman Candan, Martin R. Palmer, Dejan Prelević, İbrahim Uysal, Regina Mertz-Kraus. "U-Pb zircon geochronology of the Paleogene – Neogene volcanism in the NW Anatolia: Its implications for the Late Mesozoic-Cenozoic geodynamic evolution of the Aegean" in Tectonophysics 717 (2017): 284-301. https://doi.org/10.1016/j.tecto.2017.08.016
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Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism
Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal. "Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism" in Lithos (2017). https://doi.org/10.1016/j.lithos.2017.07.006
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Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements
The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović. "Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements" in Advances in Engineering Software, Elsevier BV (2020). https://doi.org/10.1016/j.advengsoft.2020.102824
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Palinomorfe sa lokaliteta Gostuška reka (Stara planina)
Ivan Rutović (2024)U radu su prikazani rezultati palinološkog istraživanja permsko-trijaskih sedimenata sa lokaliteta Gostuška reka. Palinološki kompleksi su detaljno analizirani, što je omogućilo morfološku, taksonomsku i paleoekološku identifikaciju palinomorfi. Istraživanje je pokazalo prisustvo velikog broja spora i polena golosemenica, dok je polen skrivenosemenica zastupljen u manjem procentu. Na osnovu paleoekoloških analiza, zaključeno je da je tokom formiranja sedimenata na lokalitetu vladala aridna klima, sa povremenim vlažnim fazama koje su omogućavale razvoj močvarne vegetacije.... rasprostranjenje: Trijas - jura Nalazište: Gostuška reka (G — 4/76) Botanička pripadnost: Lycopsiđda. Rod Verrucosisporites (Ibrahim) Smith et al., 1964 Verrucosisporites (Ibrahim) Smith, 1964 Tab.l, SI. D. 1977 Verrucosisporites applanatus Madler — Adloff & Doubinger, str. 2, tab. 1, sl. 3 2013 ...
... Leschik B. 7homsonisporites signatus Leschik Rod Uvaesporites Doring C. Uvaesporites argenteaeformis (Bolkh.) Schulz Rod Ferrucosisporites (Ibrahim) Smith et. al. D. Ferrucosisporites (Ilbrahim) Smith Rod 4piculatisporis Potonie & Kremp E. 4piculatisporis megaspinous Potonie & Kremp Rod ...Ivan Rutović. Palinomorfe sa lokaliteta Gostuška reka (Stara planina), 2024
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Old or New, We Repair, Adjust and Alter (Texts)
Cvetana Krstev, Ranka Stanković (2020)U ovom radu predstavljamo kako se e-rečnici i kaskade transduktora konačnih stanja implementirani u alatu Unitex mogu koristiti za rešavanje tri problema transformacije teksta: ispravljanje tekstova nakon OCR-a, vraćanje dijakritičkih znakova i prebacivanje između različitih jezičkih varijanti.ispravka teksta, OCR greške, restauracija dijakritika , jezičke varijante, elektronski rečnik, transduktori konačnih stanja... Нбрахпм since Хасан is a valid word (Hasan, a mascu- line first name): *_*Нбрахнм*_*Нбрахим*_*Нбрахпм*_... *Ибрахнм*_*Ибрахпм*_*Ибрахим*... One of the candidates is ac- cepted – Ibrahim, a masculine first name. The actual replacements are performed by finite-state transducers (FST) implemented in Unitex.3 ...Cvetana Krstev, Ranka Stanković. "Old or New, We Repair, Adjust and Alter (Texts)" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.3
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Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom
... Tarja Nikula and Ute Smit. 2010. Language Use and Language Learning in CLIL Classrooms. Amsterdam: John Benjamins Publishing. Fitzpatrick, Tess, Ibrahim Al-Qarni and Paul Meara. 2008. Intensive vocabulary learning: A case study. Language Learning Journal 36(2): 239-248. Guk, Iju, and David Kellog ...Lidija Beko, Ivan Obradović, Ranka Stanković. "Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom" in Proceedings of the Second International Conference on Teaching English for Specific Purposes and New Language Learning Technologies, May, 22-24, 2015, Niš, Serbia, Faculty of Electronic Engineering, University of Niš, Niš : Faculty of Electronic Engineering (2015)
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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. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities
Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević . "GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities" in Contributions to International Conferences on Engineering Surveying. Springer Proceedings in Earth and Environmental Sciences, Dubrovnik, Croatia, October 22-23, 2020, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-51953-7_21
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Analiza softvera za projektovanje ESP sistema
Aleksandar Sredojević (2024)U momentu kada pritisak na dnu bušotine nije dovoljan da savlada ukupne gubitke pritisaka od dna bušotine do separatora, proizvodnja pomoću ležišne energije nije više moguća i bušotina prestaje sa eruptivnim radom. Kako bi ponovo omogućili proizvodnju fluida iz bušotine, potrebno je primeniti neke od mehaničkih metoda eksploatacije. Najprimenljivije mehaničke metode eksploatacije su: gas lift (GL), dubinske pumpe sa klipnim šipkama (SRP), električne uronjene centrifugalne pumpe (ESP), zavojne pumpe (PCP) i hidraulične pumpe (HP). Jadna od tih metoda koja ...električna centrifugalna pumpa (ESP), proizvodnja fluida, mehaničke metode eksploatacije, Prosper, Pipesim... Poettmann and Carpenter a Baxendeli and Thomas a Fancher and Brown a Hagedorn and Brown b Gray b Asheim b Duns and Ros c Orkiszewski s Aziz et al. c Chierici et al. c Beggs and Brill c Mukherjee and Brill [1 Slika 3-4 Korelacije za režim protoka (Hofstatter, H., 2018) 3.3 Proizvodni ...
... 7 FLOW CORRELATIONS Swap angle: F3 deg __ Vertical flow (multiphase) __ Horizontal flow (multiphase) Baker Jardine Revised Selected [} i Aziz Govier Fogarasi |in] 2 |Beggs a Bril [Tulsa (Legacy 1989)] Beggs & Brili [Tulsa (Legacy 1989)] 3. |Beggs & Bril Original Beggs & Bril Original 4 |Beggs ...
... |Dukler-[Tulsa (Legacy 1989)] [u Gomez || 8 |Dukler, AGA & Flanigan' | | Gomez Enhanced- | 9. |Dukler, AGA & Flanigan (EatonHol.. — | | 'Govier, Aziz & Fogarasi | 10 |Eaton Oliemans | |Gnvier Azip Tla (l enacv 1989W1 —— | 11 |Hunhmark Dkler m Reset boundary conditions: Run Stop Publish models ...Aleksandar Sredojević. Analiza softvera za projektovanje ESP sistema, 2024
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Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija... Halloysite Nanotubes: Controlled Access and Release by Smart Gates. Nanomaterials 2017, 7, 199. [CrossRef] [PubMed] 29. Abdolmohammadi, S.; Siyamak, S.; Ibrahim, N.A.; Yunus, W.M.Z.W.; Rahman, M.Z.A.; Azizi, S.; Fatehi, A. Enhancement of Mechanical and Thermal Properties of Polycaprolactone/Chitosan Blend ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. Majid, E.;; Rauf, J.; Ata, S.; Bibi, L.; Malik, A.; Ibrahim, S.M.; Ali, A.; Iqbal, M. Synthesis and characterization of NiFe>»Ou ferrite: Sol-gel and hydrothermal synthesis routes effect on magnetic, structural ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach
Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (2024)This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependabilityNikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović. "A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach" in Applied Sciences, Basel, August 2024, MDPI (2024). https://doi.org/https://doi.org/10.3390/app14177947
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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 ...... Orkiževskog [59]. Nastavak istraživanja uticaja oblika protoka na pad pritiska publikovan je 1971. godine od strane Aziza, Fortemsa i Setarija (Aziz, Fortems, Settari) [60]. U nastavku pregleda literature biće detaljno predstavljene samo relacije za proticanje fluida kroz vertikalne i kose cevi ...
... analysis of gas-lift well unloading processes, International journal of heat and technology, Vol. 33, str 237-245, (2015) [52] G. Govier, K. Aziz, The flow of complex mixtures in pipes, Journal of Fluid Mechanics, Vol. 65, str 825-828, (1974) Doktorska disertacija Uticaj utiskivanja ...
... multiphase flow methods for calculation of pressure drop in vertical wells, Society of Petroleum Engineers, SPE paper, str 1-8, (1969) [60] K. Aziz, C. Fortems, A Settari, Interaction of wellbore conditions with flow in the reservoir in the mathematical simulation of petroleum reservoir, Proceedings ...Branko Grubač. Uticaj utiskivanja gas-lift gasa na prenos mase i toplote, Beograd : Rudarsko-geološki fakultet, 2019
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Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... ; Murthy, C.S. Fuzzy-FMEA risk evaluation approach for LHD machine-A case study. J. Sustain. Min. 2019, 18, 257–268. [CrossRef] 16. Jaderi, F.; Ibrahim, Z.Z.; Zahiri, R.Z. Criticality analysis of petrochemical assets using risk based maintenance and the fuzzy inference system. Process Saf. Environ ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
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Ефикасност дистрибуције и коришћења природног гаса у домаћинствима
Dejan Brkić (2010-03-30)Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm... т хидрауличког отпора у случају протока флуида у отвореним токовима (Yuhong‐Wenxin 2009). Ојанг и Азиз разматрају стационарни режим протока гаса у цевима (Ouyang‐Aziz 1996). Изузетан приказ расположивих једначина за различите хидрауличке режиме се даје у раду Шредера ...
... Прегледни чланци који дају различите експлицитне апроксимације Колбрукове релације су такође доступни (Abdolahi et al 2007, Concha 2008, Ouyang‐Aziz 1996, Rao‐Kumar 2007, Goudar‐Sonnad 2007; 2008; 2009, Romeo et al 2002). Б.5.1 Модијева апроксимација Модијева апроксимација (38) (Moody 1947) ...
... to analysis of natural ventilation airflow networks. Journal of Wind Engineering and Industrial Aerodynamics 67‐68, 711‐719 (на енглеском) 14. Aziz, Khalid, Ouyang, Liang‐Biao. 1995. Simplified equation predicts gas flow rate, pressure drop. Oil and Gas Journal 93(19), 70‐71. (на енглеском) 15 ...Dejan Brkić. "Ефикасност дистрибуције и коришћења природног гаса у домаћинствима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2010-03-30)
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Ефикасност дистрибуције и коришћења природног гаса у домаћинствима
Dejan Brkić (2010-03-30)Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm... т хидрауличког отпора у случају протока флуида у отвореним токовима (Yuhong‐Wenxin 2009). Ојанг и Азиз разматрају стационарни режим протока гаса у цевима (Ouyang‐Aziz 1996). Изузетан приказ расположивих једначина за различите хидрауличке режиме се даје у раду Шредера ...
... Прегледни чланци који дају различите експлицитне апроксимације Колбрукове релације су такође доступни (Abdolahi et al 2007, Concha 2008, Ouyang‐Aziz 1996, Rao‐Kumar 2007, Goudar‐Sonnad 2007; 2008; 2009, Romeo et al 2002). Б.5.1 Модијева апроксимација Модијева апроксимација (38) (Moody 1947) ...
... to analysis of natural ventilation airflow networks. Journal of Wind Engineering and Industrial Aerodynamics 67‐68, 711‐719 (на енглеском) 14. Aziz, Khalid, Ouyang, Liang‐Biao. 1995. Simplified equation predicts gas flow rate, pressure drop. Oil and Gas Journal 93(19), 70‐71. (на енглеском) 15 ...Dejan Brkić. "Ефикасност дистрибуције и коришћења природног гаса у домаћинствима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2010-03-30)
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... Berlin, 221-232, Vol.II., (1990). 3. AVRIEL M., "Nonlinear Programming: Analysis and Methods", pp. 27-42., Prentice-Hall, Englewood Cliffs, (1976). 4. AZIZ N., SRINIVASA RAO B., BAAFI E., "Aplication of Fluid Dynamics codes to develop effective gas/dust control measures in underground coal mines", Australian ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... catalytic conversion of glycerol as a biorenewable source to valuable commodity chemicals. Chemical Society Reviews, 37, 527–549. [4] Tan, H.W., Abdul Aziz, A.R., Aroua, M.K. (2013). Glycerol production and its applications as a raw material: A review. Renewable and Sustainable Energy Reviews, 27, 118–127 ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)