Претрага
1166 items
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Granatski amfiboliti Bistrice
Jovana Opančina (2024)Predmet ispitivanja ovog završnog rada su granatski amfiboliti Bistrice. Izvršena su petrografska i hemijska ispitivanja s ciljem da se odredi stepen metamorfizma, protolit ispitivanih stena i P-T uslovi nastanka. Ispitivani granatski amfiboliti geografski pripadaju Prijepolju, tačnije nalaze se na ulasku u Prijepolje, mesto Bistrica. Geološka građa obuhvata uglavnom mezozojske tvorevine među kojima se nalaze sedimentne, magmatske i metamorfne stene. Geološki procesi koji su doveli do stvaranja amfibolita su procesi subdukcije i obdukcije koji su se pretpostavljamo dešavali na većim ...Jovana Opančina. Granatski amfiboliti Bistrice, 2024
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Named Entity Recognition for Distant Reading in ELTeC
Francesca Frontini, Carmen Brando, Joanna Byszuk, Ioana Galleron, Diana Santos, Ranka Stanković (2020)Akcija COST „Udaljeno čitanje za evropsku književnu istoriju“, koja je počela 2017. godine, ima među svojim glavnim ciljevima stvaranje višejezične zbirke evropskih književnih tekstova (ELTeC) otvorenog koda. U ovom radu predstavljamo rad koji je obavljen na ručnom označavanju selekcije ELTeC kolekcije za imenovane entitete, kao i na proceni postojećih alata za prepoznavanje imenovanih entiteta u pogledu njihove sposobnosti da automatski urade takve anotacije. U poslednjem paragrafu se razmatraju zajedničke tačke između ove inicijative i CLARIN-a.Francesca Frontini, Carmen Brando, Joanna Byszuk, Ioana Galleron, Diana Santos, Ranka Stanković. "Named Entity Recognition for Distant Reading in ELTeC" in CLARIN Annual Conference 2020, Oct 2020, Virtual Event, France, CLARIN (2020)
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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... b = 2a then P2(x)(x d−b − 1) = xd+d−b + xd−a+d−b − xd−b+d−b + xb+d−b − xa+d−b − xd−b − (xd + xd−a − xd−b + xb − xa − 1) that is P2(x)(xd−b − 1) = xd+d−b + xd−a+d−b − xd−b+d−b − xa+d−b − xd−a − xb + xa + 1. Since 2a = b it follows that either a + d − b > d − a or a + d − b < d − a. In the �rst case ...
... Since, using (2.7), d + b > d − a + b > d − a > d − b > a > 1 and d + b > d − a + b > 2b > a + b > a > 1 it follows that all pairs of eventually equal exponents are: (2b, d − a), (2b, d − b), (a + b, d − a), (a + b, d − b). Finally, we conclude that if d = 2a + b, d = a + 2b, d = 3b (2.8) then P3(x)(x ...
... − 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 + x2a − xa − 1) is equal to xd+d−3a + xd−a+d−3a − xd−2a+d−3a − xd − xd−3a − x2a + xa + 1. Since P(x) is primitive and d > 5 it follows ...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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A necessary and sufficient condition for an algebraic integer to be a Salem number
Dragan Stankov (2019)We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials... 2 ( d d − 2 ) ( 2 + d−2 ∑ k=2 |ak,n| ) = 1 2 ( d d − 2 ) ( 2 + 2|ǫ2 + Tǫ1 + 1| + 2 d/2−1 ∑ j=3 |ǫj + Tǫj−1 + ǫj−2| + |2ǫd/2−2 + Tǫd/2−1| ) ≤ 1 2 ( d d − 2 ) ( 2 + 2ǫ2 + 2|T |ǫ1 + 2 + 2 d/2−1 ∑ j=3 (ǫj + |T |ǫj−1 + ǫj−2) + 2ǫd/2−2 + |T |ǫd/2−1 ) ≤ 1 2 ( d d − 2 ) ...
... We need to estimate 1 (4 d 5) (245 > ous!) d/2-1 d (<5) (2 + 2\e2 +7Te + 1| +2 S> |e; + Tej-1 + €;—2| j=3 d/2 + |2€q/2-2 + Tegal 1 d d/2-1 <5 (55) (2 + 2e9 + 2\Tley +242 a (e; + |T]ej;-1 + 6-2) + 2€q/2-2 + eyes] 1 d < = | —— } (44+ (2d- — 3)|\T $5 (<5) + (2d — 8)e + (d — 3)|T]e) So the condition ...
... equal, for every sufficiently large n, to D + s1. Finally (2.6) becomes D + s1 > 2 + |Ds1 + 2| i.e. D + s1 − 2 > Ds1 + 2 > −D − s1 + 2. Solving this double inequality for s1 we get − D D + 1 < s1 < D − 4 D − 1 . When n0 tends to infinity we obtain −1 < s1 < 1 i.e. −1/2 < cos θ1 < 1/2. It follows that ...Dragan Stankov. "A necessary and sufficient condition for an algebraic integer to be a Salem number" in Journal de theorie des nombres de Bordeaux (2019). https://doi.org/10.5802/jtnb.1076
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Pseudo-linear combination of fuzzy metrics
... non-empty set X is the mapping, d: X x X — R/ which is symmetric. Metrics are most often used, but also the so- called similarities (that is, diferences) where it is in the definition metrics triangle inequality replaced by d(z,z) > 7(d(z,y),d(y,ž)) or d(z,z) < S(d(z,y),d(y, )), (for some triangulated ...
... and d be a fuzzy set defined on X x X x (0,+oo), and satisfies the folluwing conditions for all z,y, z e X, a,8 > 0: (1) (i) diz,y,o) c [0,1), (ii) d(z,y, ) c (0,1]; (2) (i) ddzx,y,au)=0<= r= , (ii)) diz,y,q) =1==z==" (3) (i), (ii), diz,g,o) = d(y,r,a); (4) (i) S(d(z,y,a),d(y,z,B)) > d(z,z,a ...
... (ii) a Juzzy T-metric and a triple (X,d, T' is Juzzy T-metric space (where d sat- isfies axioms (1)—(5)(ii)). If instead of (1), it holds that d(z,y,a) c |0,1], the fuzzy set d is a Juzzy S-metric (fuzzy T-metric) in the broader sense, and (X,d,S) ((X,d,T')) is a fuzzy S-metric (fuzzy T-metric) ...Nebojsa M. Ralević, Bratislav D. Iričanin, Dejan Ćebić. "Pseudo-linear combination of fuzzy metrics" in Publications de l’institut mathematique, Mathematical Institute of the Serbian Academy of Sciences and Arts (2024)
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji
Dragoslav Rakić (2013-05-10)U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganjaDragoslav Rakić. "Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-05-10)
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Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji
Dragoslav Rakić (2013-05-10)U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganjaDragoslav Rakić. "Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-05-10)
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Long-Term Planning Methodology for Improving Wood Biomass utilization
Vukašinović V., Gordić D., Živković Marija, Končalović D., Živković D.. "Long-Term Planning Methodology for Improving Wood Biomass utilization" in 3rd South East European conference on sustainable development of energy, water and environment systems (2018): 66
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Hydrogeothermal potentials of Rogozna mountain and possibility of their valorization
D. R. Ivanović, Dj. A Valjarević, R. D. Srećković-Batoćanin, N. M. Martić-Bursać, D. Ž. Vukoičić, R. M. Ivanović (2020)D. R. Ivanović, Dj. A Valjarević, R. D. Srećković-Batoćanin, N. M. Martić-Bursać, D. Ž. Vukoičić, R. M. Ivanović. "Hydrogeothermal potentials of Rogozna mountain and possibility of their valorization" in Open Geosciences, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/geo-2019-0083
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Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala
Srđan B. Stanković (2016-09-11)Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
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A Fuzzy Expert Model for Availability Evaluation
Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)
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Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu
Lazar Pavlović (2024)Cilj ovog rada je analiza stabilnosti dijafragme, predviđene kao mere za obezbeđenje dubokog iskopa od zarušavanja okolnog tla koji se izvodi na mestu buduće metro stanice “Francuska” koja je planirana u okviru prve faze, prve linije metroa u Beogradu – sekcije „Centar“. U okviru numeričke analize je izvršena analiza stabilnosti konzolne dijafragme kao i dijafragme sa ankerom – slobodno oslonjene dijafragme, kako bi se moglo napraviti poređenje dobijenih vrednosti koje se odnose na dubinu fundiranja koja je potrebna da ...... das=D+hMh+ D +11 +—= D + 11 + 2.25 = D + 13.25 m = 48.9835 + 13.25 62.23m Eae = ' (oyk – ofđp) · ha = x (103.68 — 57.87) · 4.5 = 0.5 · 45.81 · 4.5 = 103.07 k\/m de=D+h,}+ D +11 +—= D + 11+ 1.5 = D + 12.5 m= 48.9835 + 12.5 61.48m Eay = o · ha = 100.52 · 11 = 1105.72 kN/m! day = D + * = D ...
... + Eao · dao + Eaio ' daio – Epi 'dpi – Epa ' dpy =0 52.78 · (D + 19.75) + 171.53 · (D + 18.67) + 50 · (D + 16) + 5.15 · (D + 15.83) + 260.41 · (D + 13.25) + 103.07 · (D + 12.5) + 1105.72 · (D + 5.5) + 606.92 · (D + 3.67) + 159D · (D) +4.16D? · (g) — 52.85 · (9) — 10.84Dp? · (%) =0 2 2 52.78D ...
... dobija: + D.,=1.2· D=1.2·48.9835 = 58.78m 65 d, =2 4. 49 m =1 6. 33 m Skica 2. Dijagram aktivnih i pasivnih pritisaka koji deluju na konzolnu dijafragmu 66 dg =2 4. 49 m d, a= 52 .6 5m da 7= 54 .4 8m d„ =6 1, 48 m d, .= 62 .2 3m d„ =6 4. 81 m d, a= 64 .9 8m d, =6 7. ...Lazar Pavlović. Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu, 2024
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A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers
Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...... follows: μ(RB1-D)exc = 0.1/(0.1+0.22+0.5+0.93+0.98) = 0.04 μ(RB1-D)good = 0.22/(0.1+0.22+0.5+0.93+0.98) = 0.07 μ(RB1-D)aver = 0.5/(0.1+0.22+0.5+0.93+0.98) = 0.18 μ(RB1-D)adeq = 0.93/(0.1+0.22+0.5+0.93+0.98) = 0.34 μ(RB1-D)poor = 0.98/(0.1+0.22+0.5+0.93+0.98) = 0.36 where: μ(RB1-D)exc+ … +μ(RB1-D)poor = 1 ...
... 0.67, 0.14) (15) μFB1-D = (0.075, 0.375, 0.475, 0.475, 0.1) (16) 4.1.3 Fuzzy Inference Machine B1-D was analyzed. Fuzzy assessments μRB1-D, μMB1-D and μFB1-D (14, 15 and 16) were synthesized into the assessment of E, using max-min composition. In this case, it is possible to ...
... (18) where is: μE(B1-D) according to (17) and μexc according to (2) For other fuzzy sets: d2(E(B1-D), good) = 0.592, d3(E B1-D), aver) = 0.605, d4(E B1-D), adeq.) = 1.073, d5(E B1-D), poor) = 1.221. - for dmin = d2: μ 2 = 0.278, μ 3 = 0.272, μ 4 = 0.153, μ 5 = 0.135. (19) Finally, the ...Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić. "A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers" in International Journal of Industrial Engineering: Theory, Applications and Practice (2019)
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Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanjeTaco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
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Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints
Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski. "Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints" in Journal of Geodynamics, Elsevier BV (2024). https://doi.org/10.1016/j.jog.2024.102058
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Fizičko-geografske karakteristike vulkana Teide na Kanarskim ostrvima
Radovanović D., Srećković -Batoćanin D., Valjarević A., Ivanović R., Veselinović J.. "Fizičko-geografske karakteristike vulkana Teide na Kanarskim ostrvima" in 4. Srpski Kongres geografa, Kopaonik 7-9.oktobar (2015)
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Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)
M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...... vi de d in to ap pe ar an ce (c ra ck ed an d m ic ro fr ac tu re d, ox id at io n ri m s (p al er an d da rk er in co lo ur ), pl as ti ci ze d ed ge s, ba nd s, re la ti ve ly pa le r co lo ur an d of w hi ch re fl ec ta nc e is hi gh er th at of un al te ...
... rm s w er e fu rt he r di vi de d in to ap pe ar an ce (c ra ck ed an d m ic ro fr ac tu re d, ox id at io n ri m s (p al er an d da rk er in co lo ur ), pl as ti ci ze d ed ge s, ba nd s, re la ti ve ly pa le r co lo ur an d of w hi ch re fl ec ta nc e is hi ...
... ci se B ac kg ro un d V r (% ) N um be r of fo rm s id en ti fi ed 20 09 C ra ck s an d m ic ro fi ss ur es , ox id at io n ri m s (p al er an d da rk er in co lo ur ), pl as ti ci ze d pa rt ic le s (p ar ti cl es w it h po ro si ty an d pa rt ic le s w it h ...M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić. "Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)" in International Journal of Coal Geology, Elsevier BV (2020). https://doi.org/10.1016/j.coal.2020.103411
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Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... Internal Dinarides · Drina-Ivanjica thrust sheet · Deformation history · K-Ar dating · Obduction · Structural analysis Editorial handling: V. Cvetkovic. Institute for Nuclear Research of the Hungarian Academy of Kristof Porkolab Sciences, 18/c Bem tćr, Debrecen 4026, Hungary k.porkolabuu.nl porco ...
... (Yugoslavia), relic of a subducted slab of the Tethyan oceanic crust: Jouwrmal of Geodynamics, 20, 3, 289-304. Mladenovic, A., Trivic, B., Cvetkovic, V., and Pavlovic, R., A brittle tectonic history of the Internal Dinarides: an inference based on the paleostress study in the Valjevo area (western ...
... Contrary to the D, deformation phase that only affected the Paleozoic and Northem Triassic unit of the Drina- Ivanjica thrust sheet, D> deformation phase has also affected the Albian-Campanian transgressive succession providing further evidence for the timing of D, and D» events. As shown ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
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Primena backcasting metodologije pri dugoročnom planiranju korišćenja biomase
Vukašinović V., Gordić D., Živković Marija, Živković D., Josijević M., Jurišević N.. "Primena backcasting metodologije pri dugoročnom planiranju korišćenja biomase" in Energija 20 no. 01-Feb (2018): 563-571