Претрага
1003 items
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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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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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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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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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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
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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 ...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
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Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla
Lana Mitrović (2024)U radu su prikazane najznačajnije osobine prirodnog gasa, uključujući hemijski sastav, jednačine sagorevanja i termodinamičke karakteristike koje predstavljaju osnovu za dalje razumevanje rada. Prikazane su količine prirodnog gasa na evropskom trţištu prema zemlji porekla, kao i njihove zasebne hemijske i termodinamičke karakteristike.Kvalitet prirodnog gasa u Republici Srbiji je posebno poglavlje u radu u okviru kog je detaljnjije opisano snabdevanje Republike Srbije prirodnom gasom, kao i zahtevani kvalitet.Na kraju, obuhvatajući sve prethodno navedeno, prikazan je postupak rešavanja Studije slučaja koja ...Lana Mitrović . Analiza toplotne moći i Vobeovog indeksa prirodnog gasa različitog porekla, 2024
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Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015)Cvjetko P. Stojanović. Model upravljanja investicionim projektima otvaranja površinskih kopova uglja, Beograd:Rudarsko Geološki Fakultet, 2015
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Genetske karakteristike minerala iz mikašišta Crnog vrha i Resavskih humova
Suzana P. Erić (2005)Suzana P. Erić. Genetske karakteristike minerala iz mikašišta Crnog vrha i Resavskih humova, Beograd:Rudarsko Geološki Fakultet, 2005
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Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)
Vladimir Kovačević (2024)Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Zorana Berisavljevića, odabrana je tema „Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)“. Osnovni metodološki pristup koji je korišćen za rešavanje postavljenog problema predstavlja kabinetsko istraživanje dostupne dokumentacije, analiza i interpretacija rezultata izvedenih geoloških,geotehničkih i geomehaničkih istraživanja. Predstavljene su osnovne informacije,karakteristike i upotreba prednapregnutih geotehničkih sidara.Analiziran je tok testiranja granične nosivosti prednapregnutih sidara. Na osnovu izvršenih geotehničkih istraživanja terena i ispitivanja ...... O I nivo opterećenja: P= 641 kN, vreme osmatranja 15 minuta II nivo opterećenja: P= 932 kN, vreme osmatranja 15 minuta III nivo opterećenja: P= 1223 kN, vreme osmatranja 15 minuta IV nivo opterećenja: P= 1514 kN, vreme osmatranja 15 minuta V nivo opterećenja: P= 1805 kN, vreme osmatranja ...
... BOREHOLE B-2 PHOTO DOCUMENTATION 3.0 6.0 9.0 12.0 15.0 18.0 21.0 \ i __I O L Z W P II __I j}| 24.0 i Tipunor 6p. Hangmena. (9 lopeweheH y3opak / disturbed sample KAPTVIPAO: MAPPED BY: p p Note: HenopeweheH y3opak / undisturbed sample np 3opaH Bepucaprbeayh, nann.MHk.reon, E1 2/7 . 32 ...
... sa . ~+ O k o m p e n z o v a n i m y 8 e skupljanjem 500 8 8 q i olo ~+ [ - - )J P A O0) o 3 O 1 4 1 . 3 x 5 f \ ii |e 8 e L_ q 104 66 66 104 O O 340 g O OO i OO OO © 400 M O O O / 180 : : P o c i n k o v a n a ...Vladimir Kovačević. Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad), 2024
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Hidrogeološki uslovi i veličina ovodnjenosti P. K. Gračanica" za potrebe racionalne eksploatacije lignita"
Milenko Vasiljević (1988)Milenko Vasiljević. Hidrogeološki uslovi i veličina ovodnjenosti P. K. Gračanica" za potrebe racionalne eksploatacije lignita", Beograd:Rudarsko-geološki fakultet, 1988
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Дефинисање параметра песковитог тла за потребе прорачуна слегања плиткох темеља преко CPTm и CPTu опита
Александар Јаковљевић (2024)Дефинисање меродавних геотехничких параметара тла за потребе прорачуна слегања.(a и носивости)темељног тла један је од главних задатака инжењера геотехнике.Од поузданости ових параметара и последично резултата прорачуна слегања и носивости, директно зависи који ће се тип, врста и димензије темеља као и начин фундирања истог примењивати.Да би се поуздано дефинисали неопходни геотехнички параметри а потом и извели потребни прорачуни слегања, потребно је на првом месту познавање деформабилних карактеристика тла.Подаци о збијености тла могу се добити или лабораторијским испитивањима на претходно ...... 84 IIecak rpammnacr (P,pr) 3.1 4.4 1.7 |7.48 Ilecak (P) 4.1 10.1 1.5 |15.15 Ilecak npammiHacr (P,pr) 5.6 5.2 1.5 |7.8 Ilecak (P) 6.6 8.2 1.8 |14.76 IlIecag rpammnacr (P,pr) 8.3 6.2 1.5 |9.3 Ilecak (P) 13 10.3 1.5 |15.45 IlIecak (P) 14.2 7.4 1.x7 |12.58 Ilecak (P) 15.5 12.7 1.5 | 19.05 ...
... pr,gl) Ilecak npamriHacr (P,pr) 5 9 1.6 | 14.4 Ilecak nparmHHacTO TJIHHOBHT | 5.5 3 1.5 | 4.5 (P.pr,gl) IIecak nmpammnacr (P,pr) 7.8 8.4 1.6 | 13.44 Ilecak npamiHacTo rIHHOBHT ~ |O.2 4.1 2 8.2 (P.pr,gl) IlIecag rpammnacr (P,pr) 17.4 12.3 1.5 | 18.45 Ilecak (P) 17.8 37.8 || 37.8 52 /lujarpaM ...
... Bpcra rua /lyOMuHa mo(m) |qc(Mpa) |o Mv(MPa) Hacun (nt) 3 6.1 1.8 10.98 Tlecak npauinHacr (P,pr) 6.7 7.6 1.8 13.68 Tlecak npauinHacr (P,pr) 8.3 6.3 1.8 11.34 Tlecak (P) 15.5 11.6 1.5 17.4 Tlecak (P) 16.5 23.3 1.5 34.95 /lujarpaM rpoMeHe MojJniya cTHIIJPHBOCTH (Mv) ca JUyOHHOM Ha JIOKamHjH ...Александар Јаковљевић. Дефинисање параметра песковитог тла за потребе прорачуна слегања плиткох темеља преко CPTm и CPTu опита, 2024
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Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova
Daniel P. KRŽANOVIĆ (2016)Daniel P. KRŽANOVIĆ. Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova, Beograd:Rudarsko Geološki Fakultet, 2016
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Hidrotermalna sinteza i struktura monokristala u sistemu CdO-MO-X2O5-(H2O)-(NH4+),M2+=Mg,Co,Ni,Cu,Zh;X5+=As,P
Jovica Stojanović (2010)Jovica Stojanović. Hidrotermalna sinteza i struktura monokristala u sistemu CdO-MO-X2O5-(H2O)-(NH4+),M2+=Mg,Co,Ni,Cu,Zh;X5+=As,P, Beograd:Rudarsko Geološki Fakultet, 2010
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Uređaj za merenje brzine detonacije eksploziva i intervala usporenja sredstava za iniciranje
Kričak Lazar, Krunić P., Mitrović S., Zeković Dario, Negovanović Milanka, Stamenić Lj.. "Uređaj za merenje brzine detonacije eksploziva i intervala usporenja sredstava za iniciranje" in TR17013 (2010)
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Primarni i sekundarni karbonati u Pb i Zn ležištima Stari Trg, Belo Brdo i Kiževak
Zorica P. Tomić (2005)Zorica P. Tomić. Primarni i sekundarni karbonati u Pb i Zn ležištima Stari Trg, Belo Brdo i Kiževak, Beograd:Rudarsko Geološki Fakultet, 2005
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Određivanje efektivne Ričardsonove konstante tunelskih MIS detektora na bazi p-Hg0.8Cd0.2Te
Damnjanović Vesna, Elazar Jovan (2012)Damnjanović Vesna, Elazar Jovan. "Određivanje efektivne Ričardsonove konstante tunelskih MIS detektora na bazi p-Hg0.8Cd0.2Te" in Zbornik radova 56. konferencije ETRAN MO, Zlatibor, Srbija:Društvo ETRAN (2012): 1-4