Претрага
871 items
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Geochemistry, Sr–Nd–Pb isotopes and geochronology of amphibole- and mica-bearing lamprophyres in northwestern Iran: Implications for mantle wedge heterogeneity in a palaeo-subduction zone
M. Aghazadeh, Д. Прелевић, Z. Badrzadeh, E. Braschi, P. van den Bogaard, S. Conticelli. "Geochemistry, Sr–Nd–Pb isotopes and geochronology of amphibole- and mica-bearing lamprophyres in northwestern Iran: Implications for mantle wedge heterogeneity in a palaeo-subduction zone" in Lithos 216-217 (2015): 352-369. https://doi.org/doi.org/10.1016/j.lithos.2015.
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Evaluation of melioration area damage on the river Danube caused by the hydroelectric power plant ‘Djerdap 1’ backwater
P. Pajic, L. Andjelic, U. Urosevic, D. Polomcic. "Evaluation of melioration area damage on the river Danube caused by the hydroelectric power plant ‘Djerdap 1’ backwater" in Water Science and Technology, IWA Publishing (2014). https://doi.org/10.2166/wst.2014.230
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Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
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Uticaj površinske obrade kamena na promenu primarne poroznosti
Ana Radivojević (2024)Površinska obrada kamena je izuzetno bitna kod stena koje se koriste u izgradnji svih vrsta objekata. Površinskom obradom se direktno utiče, ne samo na estetska svojstva kamena nego i na njegove fizičko-mehaničke karakteristike. Cilj ovog završnog rada je analiza uticaja poliranja i rezanja kao tehnoloških procesa obrade na poroznost odabranih vrsta arhitektonsko-građevinskog kamena. Ispitivane stene su gabro „Nero Assoluto“, granit sa površinskog kopa „Ploče“, granit African Red, krečnjak sa lokaliteta „Skržut“ i krečnjak poznat pod nazivom „Sirogojno crveni“.... vode u odnosu na rezane. Dijagram kapilarnog upijanja vode rezane (R) i polirane (P) 1 = NNN N površine crvenog krečnjaka 100 80 ——51R = ——52.R is ——53.R 0 60 - ——57.R % ——5.1.P =0—5.2.P – 40 5.3.P 57.P 20 ~7 [u} > 0 100 200 300 400 500 600 700 t (s*) Dijagram 3.5 – Kriva kapilarnog ...
... prethodno izmerenih masa, koje smo dobili prilikom određivanja specifične ı prividne zapreminske mase, po sledećoj formuli: P=(1—3_Ž)*100 (4) P – ukupna poroznost kamena (%); p» - prividna zapreminska masa uzorka (g); pr specifična masa uzorka (g). 2.3.4. Upijanje vode pri atmosferskom pritisku ...
... TIornpljyje ce a je cry)leHT \% /. 1,/]!41. 70 @p«p [AR i /1_ ; (ue (uwMe poOume/ba)hpesuwe) Op. MHHmeKkca |/62) / 22 npeao/na eneKTpoOHCky Bcp3Mjy SaBpmmor pama Ha OCHOBHHM/MRCTCP aKaJIČMCKHM CTy/ŽU/ljaMa TIOJU HaACJIOBOM: .Ywu)oy DOg bl }}C e DF/M /Zejdeže. L p„poMeAj nfuualpuc TDO HO Ć KojH Je ypaljeH ...Ana Radivojević. Uticaj površinske obrade kamena na promenu primarne poroznosti, 2024
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P-T analiza RMU Bitola – krupne klase
Nemanja Dobrosavljević (2024)Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans... suv ugalj Klasa krupnoće (-60 + 5 mm) - Sadržaj pepela Frakcije koje plivaju Frakcije koje tonu Gustine [t/m?| M,g |M,% |p,%|M,9% x p,%|M, % |M,% x p,% | | M, % |M,% x p,oo| e
... vlažan ugalj Klasa krupnoće (-60 + 5 mm) - Sadržaj pepela Frakcije koje plivaju Frakcije koje tonu Gustine [6m?|| M,g |M,% |p,%|M,9 x p,%|M, % |M,% x p,% | | M, % |M,o x p,9o| Me
... 2001. Pavlica J., Deušić S., Lazić P., Novi postupak čišćenja uglja u teškoj sredini, Drugi Bugarsko-Jugoslovenski simpozijum, Sofija 1997, 133-137. . Deušić S., Lazić, P., Mašine i uređaji u pripremi mineralnih sirovina 1, RGF Beograd, 2013. Lazić P., Deušić S., Novi pristup u tretiranju ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024
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Fenton-like oxidation of an azo dye using mesoporous Fe/TiO2 catalysts prepared by a microwave-assisted hydrothermal process
Nešic Jelena, Manojlović Dragan D, Jović Milica S, Dojčinović Biljana P, Vulić Predrag, Krstić Jugoslav B, Roglić Goran M (2014)Nešic Jelena, Manojlović Dragan D, Jović Milica S, Dojčinović Biljana P, Vulić Predrag, Krstić Jugoslav B, Roglić Goran M. "Fenton-like oxidation of an azo dye using mesoporous Fe/TiO2 catalysts prepared by a microwave-assisted hydrothermal process" in Journal of the Serbian Chemical Society 79 no. 8, Belgrade:Serbian Chemical Society (2014): 977-991. https://doi.org/10.2298/JSC131001143N
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Simultaneous determination of long-term average fluxes of solar pp-neutrinos and cosmic ray muons. Astrophysics and Space Sciences Transactions (ASTRA).
Aničin Ivan, Pavićević Miodrag, Amthauer Georg, Boev Blažo, Bosch Franz, Bruchle W., Đurčić Zoran, Faestermann, T., Henning, W.F., Jelenković Rade, Niedermann S., Pejović Vladan, Vermeesch P., Weiss A. (2010)Aničin Ivan, Pavićević Miodrag, Amthauer Georg, Boev Blažo, Bosch Franz, Bruchle W., Đurčić Zoran, Faestermann, T., Henning, W.F., Jelenković Rade, Niedermann S., Pejović Vladan, Vermeesch P., Weiss A.. "Simultaneous determination of long-term average fluxes of solar pp-neutrinos and cosmic ray muons. Astrophysics and Space Sciences Transactions (ASTRA)." in ASTRA. Special Issue: ECRS 2010 (2010): 111
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Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells
Mirković Miljana M., Došen Anja M., Erić Suzana P., Stojmenović, Marija D., Matović Branko Z., Rosić Aleksandra A. (2018)Mirković Miljana M., Došen Anja M., Erić Suzana P., Stojmenović, Marija D., Matović Branko Z., Rosić Aleksandra A.. "Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells" in Science of Sintering 1 no. 50, Beograd:Međunarodni Institut za nauku o sinterovanju (2018): 95-109. https://doi.org/https://doi.org/10.2298/SOS180
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Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells
Mirković M. Miljana, Došen, M. Anja, Erić P. Suzana, Stojmenović D. Marija, Matović Z. Branko, Rosić A. Aleksandra (2018)Mirković M. Miljana, Došen, M. Anja, Erić P. Suzana, Stojmenović D. Marija, Matović Z. Branko, Rosić A. Aleksandra. "Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells" in Science of Sintering 50 no. 1, Beograd:International Institute for the Science of Sintering, Belgrade, Serbia (IISS) (2018): 95-109. https://doi.org/10.2298/SOS1801095M
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Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
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The Reciprocal Algebraic Integers Having Small House
Dragan Stankov (2021)Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials... polynomial P(x) is primitive if it cannot be expressed as a polynomial in xk, for some k ≥ 2. Clearly, if p is an odd prime number then any reciprocal polynomial of degree 2p, having the central monomial αpx p, withmore than threemonomials has to be primitive. It is easy to verify that P(xk) = k √ P(x) ...
... (two policemen) theorem . Theorem 3. If P(x) is an antireciprocal, primitive hexanomial of degree d > 7whose non-zero coe�cients are±1 then there is a natural number p < d such that P(x)(xp−1) is a reciprocal octanomial (having the house equal to the house of P(x)), whose non-zero coe�cients are also ...
... In the second case, we get such polynomial if we transpose middle two monomials. If b = 2a, then P(x) = xd + xd−a − xd−2a + x2a − xa − 1. Since d − b > b it follows that d > 4a then for p = d − 3a P(x)(xd−3a − 1) = = xd+d−3a + xd−a+d−3a − xd−2a+d−3a + x2a+d−3a − xa+d−3a − xd−3a − (xd + xd−a − xd−2a ...Dragan Stankov. "The Reciprocal Algebraic Integers Having Small House" in Experimental Mathematics (2021). https://doi.org/ 10.1080/10586458.2021.1982425
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Nonequilibrium athermal random-field Ising model on hexagonal lattices
... (2006). [20] K. A. Dahmen and J. P. Sethna, Phys. Rev. Lett. 71, 3222 (1993). [21] K. A. Dahmen and J. P. Sethna, Phys. Rev. B 53, 14872 (1996). [22] O. Perković, K. A. Dahmen, and J. P. Sethna, Phys. Rev. Lett. 75, 4528 (1995). [23] O. Perković, K. A. Dahmen, and J. P. Sethna, Phys. Rev. B 59, 6106 ...
... (2020). [37] D. Thongjaomayum and P. Shukla, Phys. Rev. E 88, 042138 (2013) [38] L. Kurbah, D. Thongjaomayum, and P. Shukla, Phys. Rev. E 91, 012131 (2015). [39] P. Shukla and D. Thongjaomayum, J. Phys. A: Math. Theor. 49, 235001 (2016). [40] D. Thongjaomayum and P. Shukla, Phys. Rev. E 99, 062136 ...
... by the equation connecting the system size L and the probability p(—3) as p(—3) = 1/L?. This means that the external field should take the value that flips one spin in the system of L? spins. Combined with Eq. (4) this equation leads p(h)dh 3.05 L=256 25. T=1024 L=32768 = 20 = 1.54 1.05 T T - _ _ 1 ...Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević. "Nonequilibrium athermal random-field Ising model on hexagonal lattices" in Physical Review E, American Physical Society (APS) (2021). https://doi.org/10.1103/PhysRevE.103.032147
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Tektonska evolucija ugljevičkog basena (Bosna i Hercegovina)
Slobodan Dragić (2024)U radu je prezentovana šira slika tektonske evolucije ugljevičkog basena, kao i Dinarida uopšte. Prikazani su litostratigrafski odnosi istraživanog područja, kao i kratak pregled tektonskih jedinica koje se nalaze u domenu basena. Najveća pažnja posvećena je kinematskoj analizi rasjednih struktura i interpretaciji podataka u svjetlu tektonske evolucije basena. Ugljevički basen zapunjen je oligocensko-miocenskim sedimentima, a njegovu osnovu grade paleozojsko-mezozojske formacije. Najstarije tvorevine na ovom području su permski sedimenti. Trijaski i kredni deponati, uglavnom krečnjaci, reprezent su tvorevina ...... the Central Dinarides, Tectonophysics, 530-531, p. 286-298. Dimitrijević, M. 2001. Dinarides and the Vardar Zone: a short review of the geology. Acta Vulcanologica. 13: p. 1-8. Dimitrijević, M. D. 1995. Geologija Jugoslavije, Geoinstitut, Beograd, p. 205. 52 Handy, M., Ustaszewski, K., Kissling ...
... Beograd, p. 214. Matenco, L., Radivojević, D. 2012. On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides. Tectfonics 31, p. 1-31. Milošević, A., Cvijić, R., Ivanković, B., Jokanović, P., 2017. ...
... fakultet, Beograd, p. 108. Rundić, LJ., 1993. Biostratigrafija gornjeg panona severoistočne Majevice (Bosna) na osnovu ostrakoda, Rađovi Geoinstituta 28, p. 63-80. Rundić, LJ., 1993. Prilog poznavanju eocena planine Majevice (SI Bosna). Geo/oški anali Balkanskoga poluostrva, 57/2, p. 169-178. Rundić ...Slobodan Dragić. Tektonska evolucija ugljevičkog basena (Bosna i Hercegovina), 2024
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Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia
Nenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski (2022)General Earth and Planetary Sciences,General Environmental Science,Ecology,Ecology, Evolution, Behavior and SystematicsNenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski. "Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia" in Chemistry and Ecology, Informa UK Limited (2022). https://doi.org/10.1080/02757540.2021.2017903
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Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support
... 56, 2015, p. 360-374. https://doi.org/10.1016/j.engfailanal.2015.01.002. 7| Rusinski E., Harnatkiewicz P., Kowalczyk M., Moczko P. Examination of the causes of a bucket wheel fracture in a bucket wheel excavator. Journal of Engineering Failure Analysis, Vol. 17, Issue 6, 2010, p. 1300-1312, ...
... 18, 2011, p. 658-669, ttps://doi.org/10.1016/j.engfailanal.2010.09.035. 10} Jovančić P., Ćelovićš, Ignjatović D., Maneski T. Redesigning components of power transmission Oaccording to numerical model and vibration diagnostics. Journal of Vibroengineering, Vol. 15, ssue 3, 2013, p. 1322-1329 ...
... and Vibration, Vol.338, 2015, p.2-4l, https://doi.org/10.1016/J.jsv.2014.06.029. I2 „LuoQ. TongL.Optimal Designs for vibrating structures using a moving isosurface threshold method with experimental study. Journal of Vibration and Acoustics, Vol. 137, Issue 6, 2015, p. 001005, https://doi.org/10 ...Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović. "Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support" in Journal of Vibroengineering (2017). https://doi.org/10.21595/jve.2016.17321
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A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)
Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik (2023)Regarding the aspect of mineral, thermo-mineral, and thermal waters, on the territory of the Republic of North Macedonia, there are 65 registered locations, of which 8 are categorized as spas. This includes the Kežovica spa, also known as the Štipska spa. In the vicinity of Kežovica Spa is the thermo-mineral L’Dži spring with mineralization around 1.3 g/L and the water temperature at the time of sampling was 50.1 °C. Spring L’Dži is generated by a fault structure and is ...termomineralne vode, hemizam voda, hidrohemijske karakteristike, lokalitet L’dži, Republika Severna MakedonijaHristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik. "A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)" in Review of the Bulgarian Geological Society, Bulgarian Geological Society (2023). https://doi.org/10.52215/rev.bgs.2023.84.3.303
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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Анализа рада гас лифта на нафтном пољу К
Тамара Бркан (2024)Анализа рада гас лифта укључује детаљну процену перформанси, идентификацију проблема, симулацију и моделирање, као и опримизацију и прилагођавање система. Циљ је осигурати да гас лифт функционише ефикасно уз повећање производње и уз што мање оперативне трошкове. У даљем тексту биће описана анализа рада гас лифта на нафтном пољу К, као и поређење најекономичнијег решења.... cryOa yTHcKHBaHor raca y IIpCTeHaCTOM IipocTopy. IIparucak ce H3pauyHaBa Ha OCHOBy OBE (boOpMyiIe: P ı = 8,2025 ·:10— · P• L · P IIpu ueMy jJe: Pv — nparucak 3aTBapatba BeHTHIa Ha nyOHHu, [bar]|; P„,, – npurucak 3arBapabba BeHTHIa Ha noBpriiHu, [bar]; L – nyOuHHa [m]; 3) IIpopauyH rpaHrHcKa ...
... riipena3anHax JnyOHHa: Gs · Hpg – Pr+ P- LA = 5 B Wh [m] Gs – SFmin BpejmHocr Pyr ce ouaranBa ca mujarpaMa 3a IPR kpHBe, HJIH Ce MO:KE OJIpeH pauyHckH: Qo Popi=0,125 · P, · [—1+ /81—80 . (Q )] [bar]; _GS 'HB—ow+Pwh . (6) L= T e [ml; TIpu ueMy je: P.- nexumnu npurucak, [bar]; Panh— npHrucak ...
... H3pauyHaBa Ha cJIe/leuH HauHH: Qam P wf =1-02· — _o0g.— Qamax Pr Pr m3 Qomax = 2,73 E 3a popMupame IPR KpunBe, Je111MO MaKCHMaJIHy IIpOH3BOJUPy Ha 5 TauaKa: 3a cBaky Tauky TpeOa H3pauyHaTHu oJipebeH |HHaMHukKu IIpHTHcaK: _ .p . [{[_ _— go · _L Pori = 0,125 · P. ( 1+ /81 80 Q„m„) [bar] 3 : ...Тамара Бркан. Анализа рада гас лифта на нафтном пољу К, 2024
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The Late Cretaceous Klepa basalts in Macedonia (FYROM) - Constraints on the final stage of Tethys closure in the Balkans
Dejan Prelević, S. Wehrheim, M. Reutter, Romer, R.L., Blažo Boev, Milica Božović, P. van den Bogaard, Vladica Cvetković, Stefan M. Schmid (2017)Dejan Prelević, S. Wehrheim, M. Reutter, Romer, R.L., Blažo Boev, Milica Božović, P. van den Bogaard, Vladica Cvetković, Stefan M. Schmid. "The Late Cretaceous Klepa basalts in Macedonia (FYROM) - Constraints on the final stage of Tethys closure in the Balkans" in Émile Argand Conference - 13th Workshop on Alpine Geological Studies - September 7th-18th 2017 in Serbia, Zlatibor Mts., Beograd:University of Belgrade - Faculty of Mining and Geology (2017): 87-87
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Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate
Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...... 0-00375-1. Montone, P., Mariucci, M.T., 2015. P-wave velocity, density, and vertical stress magnitude along the crustal Po plain (northern Italy) from Sonic log drilling data. Pure Appl. Geophys. 172 (6), 1547–1561. https://doi.org/10.1007/s00024-014- 1022-5. Montone, P., Mariucci, M.T., 2020 ...
... accretion in the back-arc area are still questioned. Traditionally, the distinctive features of magmatic underplating are high seismic P- and S- wave velocities and high ratio of P- to S-wave velocities of the intruded volume compared to surrounding crust (Thybo and Artemieva, 2013). More general, the products ...
... 36 (12), 3135–3154. https://doi.org/10.1002/ 2016TC004443. Mancinelli, P., Pauselli, C., Minelli, G., Federico, C., 2015. Magnetic and gravimetric modeling of the Central Adriatic region. J. Geodyn. 89, 60–70. Mancinelli, P., Pauselli, C., Minelli, G., Barchi, M.R., Simpson, G., 2018. Potential ...Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević. "Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate" in Marine and Petroleum Geology, Elsevier Ltd. (2021). https://doi.org/10.1016/j.marpetgeo.2021.105470