Претрага
683 items
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Influence on Environment of Sealing Screen at Lignite Opencast Mines
Šubaranović Tomislav, Pavlović Vladimir, Polomčić Dušan, Malbašić V. "Influence on Environment of Sealing Screen at Lignite Opencast Mines" in Metalurgia International (2013): 169-176
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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... Torbica, Vladimir Malbašić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Development of integrated fuzzy model for mine management optimization | Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić | Comptes rendus ...
... FUZZY MODEL FOR MINE MANAGEMENT OPTIMIZATION Miodrag Čelebić*, Sanja Bajić**, Dragoljub Bajić***", Dejan Stevanović**, Duško Torbica*, Vladimir Malbašić* Received on April 5, 2023 Presented by Ch. Roumenin, Member of BAS, on June 27, 2023 Abstract Technoeconomic, environmental and safety criteria ...
... comparison approach: V(M, > W)= sup |min (Jr, () , R,Ma (9))] . z>u If there are such pairs (z,y) that r > y and a (T) = HM,(U) = l, then V (Mi > M») = 1. Given that Mi and M»are convex triangular fuzzy number, it follows that V(]Wl > ]Wz) =LlL if si > 5 1, if 2 Ž ı V (M> > Mi) = hgt(My n ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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Model za optimizaciju transporta na površinskom kopu »Jezero« rudnika Omarska
Vladimir Malbašić (2004)Vladimir Malbašić. Model za optimizaciju transporta na površinskom kopu »Jezero« rudnika Omarska, Beograd:Rudarsko-geološki fakultet, 2004
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Model za evaluaciju transportnih sistema u funkciji dugoročnog planiranja površinskih kopova metala
Vladimir Malbašić (2007)Vladimir Malbašić. Model za evaluaciju transportnih sistema u funkciji dugoročnog planiranja površinskih kopova metala, Beograd:Rudarsko Geološki Fakultet, 2007
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Uticaj karakteristika ispirnih fluida na pribušotinsku zonu naftnih i gasnih bušotina
Tatjana A. Malbašić (2016)Tatjana A. Malbašić. Uticaj karakteristika ispirnih fluida na pribušotinsku zonu naftnih i gasnih bušotina, Beograd:Rudarsko-geološki fakultet, 2016
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Izbor kompresora za potrbe gaslifta
Malbašić Tatjana, Jelka Stupar, Mitrović Vladimir. "Izbor kompresora za potrbe gaslifta" in Podzemni radovi (Underground Mining Engineering) no. 17, Beograd:Univerzitet u Beogradu - Rudrsko-geološki fakultet (2010): 61-69
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Optimizacija sistema transporta jalovine na površinskom kopu Buvač
Malbašić Vladimir, Stevanović Dejan, Čelebić Miodrag. "Optimizacija sistema transporta jalovine na površinskom kopu Buvač" in Tehnika no. 4, Beograd:Savez inženjera i tehničara Srbije (2012): 545-552
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Optimizacija završne konture površinskog kopa Buvač korišćenjem programskog paketa Whittle,
Kolonja Božo, Stevanović Dejan, Radović Radan, Malbašić Vladimir. "Optimizacija završne konture površinskog kopa Buvač korišćenjem programskog paketa Whittle," in Međunarodni simpozijum Održivi razvoj rudarstva i energetike, Beograd:Faculty of Mining and geology, Belgrade (2011): 309-316
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Problems of preparation and storage water from pay zones of hidrocarbon fluids to environmental protection - Problematika pripreme i odlaganja voda ležišta ugljovodoničnih fluida u cilju zaštite životne sredine
Mitrović Vladimir, Bošković Zvonimir, Stupar Jelka, Malbašić Tatjana. "Problems of preparation and storage water from pay zones of hidrocarbon fluids to environmental protection - Problematika pripreme i odlaganja voda ležišta ugljovodoničnih fluida u cilju zaštite životne sredine" in Technics Technologies Education Management / TTEM 7 no. No.3, Sarajevo: (2012): 1030-1036
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Deep oil wells between production and disaster - Duboke naftne bušotine između proizvodnje i katastrofe
Bošković Zvonimir, Mitrović Vladimir, Malbašić Tatjana, Stupar Jelka. "Deep oil wells between production and disaster - Duboke naftne bušotine između proizvodnje i katastrofe" in Technics Technologies Education Management / TTEM 7 no. No.2, Sarajevo: (2012): 580-585
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Kumulativna eksplozivna sredstva za perforiranje naftnih i gasnih bušotina
Petar Šućur, Jelka Stupar, Malbašić Tatjana, Mitrović Vladimir. "Kumulativna eksplozivna sredstva za perforiranje naftnih i gasnih bušotina" in Podzemni radovi (Underground Mining Engineering) no. 17, Beograd:Univerzitet u Beogradu - Rudrsko-geološki fakultet (2010): 69-76
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Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia
Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović. "Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia" in CATENA, Elsevier BV (2020). https://doi.org/10.1016/j.catena.2020.104914
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Да ли су сви калкоалкални интраофилолитски гранитоиди источне Вардарске зоне јурске старости?
Шарић Кристина, Цветковић Владица, von Quadt, Albrecht, Peytcheva Irena, Малбашић Јована. "Да ли су сви калкоалкални интраофилолитски гранитоиди источне Вардарске зоне јурске старости?" in Српски геолошки конгрес, Врњачка Бања, 17‐20. мај 2018 no. 1, Врњачка Бања:Српско геолошко друштво (2018): 98-101
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Да ли су сви калкоалкални интраофилолитски гранитоиди источне Вардарске зоне јурске старости?
Шарић Кристина, Цветковић Владица, von Quadt, Albrecht, Peytcheva Irena, Малбашић Јована. "Да ли су сви калкоалкални интраофилолитски гранитоиди источне Вардарске зоне јурске старости?" in Српски геолошки конгрес, Врњачка Бања, 17‐20. мај 2018 no. 1, Врњачка Бања:Српско геолошко друштво (2018): 98-101
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... seismicity due to blasting: works in quarries and their impact on the environment and population. Applied Sciences 2021, 11(5), pp. 2118. 3. Malbašić, V.; Stojanović, L. Determination of Seismic Safety Zones during the Surface Mining Operation Development in the Case of the “Buvač” Open Pit. Minerals ...
... registered rock mass oscillation velocities v, is given, as well as calculated rock mass oscillation velocities from v,, to v,s , for models 1 — 5. Table 3. Review of registered and calculated rock mass oscillation velocities for models 1-5 V, [cm/s| a [cm/s V;s [cm/s] 21.8117 55.3430 55.9536 ...
... component, • V, — rock mass oscillation velocity vertical component, • Y, — rock mass oscillation velocity horizontal longitudinal component. Based on that, maximum, i.e., resulting rock mass oscillation velocity V, can be determined using following equation: 2 2 2 V,OS NM +V TV 3 Q) 3. ROCK ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia, Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Threshold-induced correlations in the Random Field Ising Model
... ˆT i b V T i V b S i b V b S i V(S ; ) ( ; )/ , (S ; ) ( ; ), (4)b x b x x th th th 1 th hold for the duration T(i; Vth) and size ∫= ′ ′ −S i V f t dt V T i V( ; ) ( ) ( ; ) t t ith th th s e , and also for the following types of waiting times: = = = ˆ ˆ ˆ T i b V T i V b T i b V T i V ...
... =ζ ζ+ − + −D T b b V b b D T V D b S b V b b D S V( / ; , ) ( ; , ), ( ; , ) ( ; , ), (13)T x w T S x x w x Sth 1 th 1 th 1 th λ λ=ζ +D T b b V b b D T V( / ; , ) ( ; , ), (14)T x w Tint th 1 int thint int λ λ λ λ = = . ζ ζ + + D T b b V b b D T V D T b b V b b D T V ( / ; , ) ( ; , ...
... )i T( ) int th int , n T V( ; )i T( ) end th end , and n T V( ; )i T( ) ini th ini corresponding to internal waiting time Tint, and contributions Tend and Tini to the external waiting time, respectively. �ese numbers obey: = =− ˆ ˆn T b b V n T V n b S b V n S V( / ; ) ( ; ), ( ; ) ( ; ), (8)i ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
... operation of relation (10) we obtain: 1 21 1 2 1 ... log log ... N N N N v v vR n R R R v where we find: 1 2 1 1 1 2 ... log log ... N N N N v v v v n R R R R (11) By the replacement ...
... R1, i = 2, 3, ..., N, from the equation (9), we can take that: 1 1 2,3,..., n i i R v v i N R from where the relation is obtained: 1 1 2 1 1 2 ... ... n N N N N R v v v v R R R (10) From the relation (10), we can determine ...
... have approximately the same value (Lutovac, 2010) which will be marked (-n), meaning that: v v n R R (2) Thereby it can be considered that: 0 lim R v v n R R which means that is: 12 ...Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... 1%, the oscillation velocity of the soil v will decrease (increase) by approximately n% [8]. Indeed, for h = ± R 100 = ±1%R, from (12) we obtain: v ( R ± R 100 ) ≈ v(R)∓ n· R 100 · v(R) R , v ( R ± R 100 ) ≈ v(R)∓ n· v(R) 100 , v(R ± 1%R) ≈ v(R)∓ n%·v(R). (14) 3.3. Models to Determine the ...
... applied to the function v(R) from (7), in the final growth increment, we obtain: v(R + h) ≈ v(R) + h·v′(R + θ·h), 0 < θ < 1. (11) For small absolute values h, from (11), we obtain the relation: v(R + h) ≈ v(R) + h·v′(R). (12) Having (10) in mind, relation (12) becomes: v(R + h) ≈ v(R)− n·h·v(R) R . (13) ...
... written in the form: v(R) = K-R™. (7) Then from the Equation (7) for the derivation v’(R), we obtain: o'(R) = —n-K-R-"1, (8) Minerals 2018, 8, 70 5 of 18 which may be written in the form: v′(R) = − n R ·K·R−n. (9) Having in mind Equation (7), from the Equation (9), we obtain: v′(R) = −n·v(R) R ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... values v(Rs), v(R1), Rs and R1 we take from the table of experimental data, so that we have: c s s Rv v 1 1 R-R v- . (12) In this manner we find a derivative v'(Rc) at point Rc, whereas Rc is given using formula (11). In practice the formula (8) is used so that the values v(Rs) and v(R1) ...
... formuli (8) vrednosti v(Rs), v(R1), Rs i R1 uzimamo iz tabele eksperimentalnih podataka, tako da imamo: c s s Rv v 1 1 R-R v- . (12) Na ovaj način nalazimo izvod v'(Rc) u tački Rc, gde je Rc dato pomoću formule (11). U praksi formulu (8) koristimo tako što vrednosti v(Rs) i v(R1) uzimamo iz ...
... i.e. n RK R n v . (5) Bearing in mind (4), equation (5) is re- duced to: R vn v (6) From (6) the following is found: v R vn (7) If the derivative v' at some point Rc could not be found then from the equation (7), n can be determined. Value of deriva- tive v' can be determined using ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker... platelet, estimated as 25.47% for V and 74.53% for O, are close to the values of stoichiometric V5»Os. Molecules 2023, 28, 655 5of18 Spectrum 1 V A o A |A o 1 2a 3 4 5 6 7/ B 0 10 Full Scale 4432 cts Cursor:-0.124 KeV (0 cts) keV v Spectrum 2 V o V r - ——— e O 1 2 3 4 5 6 7 8 9 ...
... good crystallinity of the V>»Os phase [30—32]. A broad feature at ~1020 cm !1 may be ascribed to surface VOx species on V>Os [33]. R a m a n in te ns it y 100 200 300 400 500 600 700 800 900 1000 1100 1200 Raman shift (cm) Figure 5. Experimental Raman spectrum of V»Os catalyst (after a baseline ...
... was used to prepare V»Os powders [14,48]. For that purpose, 0.1 M ammonium metavanadate (NHaVOx) was dissolved in 80 mL of distilled water, resulting, in a pale yellow solution. To adjust the pH of the reaction solution to about 4, the diluted acetic acid (C(HaCOOH/Hx»O = 1:1 v/v) was added drop-wise ...Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655