Претрага
1231 items
-
Characterization of Lignitic Fly Ash Pellets from TPP NT-B Obrenovac
Tomanec Rudolf, Lazić Predrag, Fečko P., Čablik V.. "Characterization of Lignitic Fly Ash Pellets from TPP NT-B Obrenovac" in Proceedings of The XIX International Scientific and Professional Meeting ECO-IST 2011 (Ecological Truth), Bor:University of Belgrade, Technical faculty Bor (2011): 175-182
-
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
-
Erosion rate determination of Allchar region with cosmogenic radioactive (10Be, 26Al, 53Mn) and stable (3He, 21Ne) nuclides
Pavićević Miodrag, Vermeesch P., Niedermann S., Amthauer Georg, Boev Blažo, Jelenković Rade, Pejović Vladan (2010)Pavićević Miodrag, Vermeesch P., Niedermann S., Amthauer Georg, Boev Blažo, Jelenković Rade, Pejović Vladan. "Erosion rate determination of Allchar region with cosmogenic radioactive (10Be, 26Al, 53Mn) and stable (3He, 21Ne) nuclides" in IMA 2010, PL123 Cometary and stellar mineralogy, Budapest, Hungary: (2010)
-
SEM-EDS analysis and microindentation hardness study of Zr-doped X2Y3 (X=Bi, Sb; Y=Te, Se) p-type semiconductor
Požega Emina, Marković Ivana, Vuković Nikola. "SEM-EDS analysis and microindentation hardness study of Zr-doped X2Y3 (X=Bi, Sb; Y=Te, Se) p-type semiconductor" in Proceedings of the 45th International October Conference on Mining and Metallurgy, Bor:Univerzitet u Beogradu – Tehnički fakultet u Boru (2013): 600-603
-
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
-
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
-
Modelling of characteristics of crater emerged from the surface explosion on the soil
Bjelovuk I., Jaramaz S., Elek P., Mickovic D., Kričak Lazar. "Modelling of characteristics of crater emerged from the surface explosion on the soil" in FIZIKA GORENIYA I VZRYVA, (COMBUSTION, EXPLOSION, AND SHOCK WAVES) no. 3, Novosibirsk, Rusija:Publishing House of the Siberian Branch of the Russian Academy of Sciences , Springer (2015): Prihvaćen
-
Crystal structures and microstructures of ordered and disordered kalsilites. Is kaliophilite a KAlSiO4 polymorph or kalsilite polytype?
Kremenović Aleksandar, Dimitrijević Radovan, Dondur Vera, Lazić P. Biljana, Vulić Predrag, Cvetković Vladica (2011)Kremenović Aleksandar, Dimitrijević Radovan, Dondur Vera, Lazić P. Biljana, Vulić Predrag, Cvetković Vladica. "Crystal structures and microstructures of ordered and disordered kalsilites. Is kaliophilite a KAlSiO4 polymorph or kalsilite polytype?" in Meeting of the Swiss Crystallographic Association/SGK/SSCr Newsletter 84, Bern, Švajcarska:Swiss Crystallographic Association (2011): 34-34
-
Quaternary stratigraphy and paleoenvironment of the Ada Ciganlija based on borehole P-1
Nenadić Draženko, Gaudenyi T.,Bogićević Katarina, Jovanović M. "Quaternary stratigraphy and paleoenvironment of the Ada Ciganlija based on borehole P-1" in Conference of the Europan Quaternary Malagologists 15-18th August, Molluscs and Quaternary envirnoment of Central Europe, Szeged:Srpsko geološko društvo, University of Szeged (2010): 27-28
-
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
-
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
-
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
-
Simultaneous determination of long-term average fluxes of CR muons and solar pp-neutrinos
Aničin Ivan, Pavićević Miodrag, Amthauer Georg, Boev Blažo, Bosch F., Brüchle W, Djurčić Željan, 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 F., Brüchle W, Djurčić Željan, Faestermann T., Henning W. F., Jelenković Rade, Niedermann S., Pejović Vladan, Vermeesch P., Weiss A.. "Simultaneous determination of long-term average fluxes of CR muons and solar pp-neutrinos" in 22nd ECRS - European Cosmic Ray Symposium ECRS 2010, Turku, Finland: (2010)
-
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.
-
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
-
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
-
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
-
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
-
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
-
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