Претрага
855 items
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Comptes rendus de l’Acad ́emie bulgare des Sciences, Proceedings of the Bulgarian Academy of Sciences (2024)
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Proceedings of the Bulgarian Academy of Sciences, Bulgaria, 28. maj 2024 , Prof. Marin Drinov Publishing House of BAS (Bulgarian Academy of Sciences) (2024). https://doi.org/10.7546/CRABS.2024.07.10
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The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>
The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...... of endothiapepsin. J Mol Biol 1990;211:919—0941. 5] Pedersen VB, Foltmann B. The amino acid sequence of a hitherto unobserved segment from porcine pepsinogen preceding the N-terminus of pepsin. FEBS Lett 1973; 35:250—258. 6] Sepulveda P, Marciniszyn J, Lui D, Tang J. Primary structure of ...
... performed in triplicate. RIGHTSLIMKMK&~Ž --| zj g s P o 5 | Š o S - s = 5 j| E > F3 E o 9 Š Đ 8 8 -| = P F-| |- o al Ch em is tr y Do wn lo ad ed fr om -| -} P |l = & Š |-5} |j 6 | || F| 5 -i Fo r pe rs on al us e on ly . in dose-dependent manner ...
... concentrations at pH2. RIGHTSLIMKMK&~Ž --| zj g s P o 5 | Š o S - s = 5 j| E > F3 E o 9 Š Đ 8 8 -| = P F-| |- o al Ch em is tr y Do wn lo ad ed fr om -| -} P |l = & Š |-5} |j 6 | || F| 5 -i Fo r pe rs on al us e on ly . 1006 I7 M. Pavelhic et al ...Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić. "The influence of Al3+ion on porcine pepsin activityin vitro" in Journal of Enzyme Inhibition and Medicinal Chemistry, Informa UK Limited (2008). https://doi.org/10.1080/14756360701841095
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A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area
Filip Anđelković, Dejan Radivojević (2018)Filip Anđelković, Dejan Radivojević. "A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Paleovegetation and environment during deposition of the Late Oligocene sub-bituminous coal in the Bobov Dol Basin (SW Bulgaria) as deduced from petrographic and geochemical characteristics
Alexander Zdravkov, Achim Bechtel, Doris Groβ, Ivan Kojić, Ksenija Stojanović, Dragana Životić (2024)Coal and carbonaceous shale samples were taken from the Late Oligocene Bobov Dol Basin, SW Bulgaria. Seams Ia, I, IIa+b, III, IV and V from the coal-bearing Bobov Dol Fm. were sampled to provide insights into the peat forming vegetation and depositional environment based on detailed organic petrological and geochemical study. The petrographic composition indicates that both coals and carbonaceous shales contain predominantly terrestrial organic matter with abundant huminite macerals and locally enriched liptinite macerals. Inertinite is rare or ...... Sample I, 9_ [} 3 8 804 d 8 j Š 70j 7 š i Des-A Hi „ 5 60 * non-hopanoid 5 6 romatic e j }+ iriterpenoids -i diter Š 3 ) % triterpenoids š Tp 4 541 fj NE Libi H -i 44 d Sleanes H Aromatic || k Ć s 4 Ssesquiterpenoids .| s " Diterpenoids O a __ Himwm i PA 3 « „j Sesquiterpenoids – Š a —— [-4 ...
... Nonsopimaxanc*-l _I +| Ph yt an e 30 32 34 36 38 100; B|Sample I, F1 3 5 { mw.=%%+%0+|Š, 90-j 408+410 |- 3 j a i ž 80- Š 70 O -| o = Š i B8 0603 5 3 .B š 31 LO 9 403 BO a [] 3 II Š «j Š -d 9| 20 7 : <. 5 20; š -| f E NI Š 10— 56 58 60 62 TT TT T-{-_T T-T | TTCT-T 46 40 ...
... Bulgaria. Geologica Balcanica 32, 9-15. Dehmer, J., 1989. Petrographical and organic geochemical investigation of the Oberpfalz brown coal deposit, West Germany. Int. J. Coal Geol. 11, 273-290. https://doi.org/ 10.1016/0166-5162(89)90119-5. Dehmer, J., 1995. Petrological and organic geochemical i ...Alexander Zdravkov, Achim Bechtel, Doris Groβ, Ivan Kojić, Ksenija Stojanović, Dragana Životić. "Paleovegetation and environment during deposition of the Late Oligocene sub-bituminous coal in the Bobov Dol Basin (SW Bulgaria) as deduced from petrographic and geochemical characteristics" in International Journal of Coal Geology, Elsevier BV (2024). https://doi.org/10.1016/j.coal.2024.104489
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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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Tehnološki aspekti izrade lateralnih bušotina kratkog radijusa
Vladimir J. Žuža (2006)Vladimir J. Žuža. Tehnološki aspekti izrade lateralnih bušotina kratkog radijusa, Beograd:Rudarsko-geološki fakultet, 2006
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Hidrogeoekološki aspekti aksploatacije uglja u Pelagonijskom basenu (Makedonija)
Kostadin J. JOVANOV (2016)Kostadin J. JOVANOV. Hidrogeoekološki aspekti aksploatacije uglja u Pelagonijskom basenu (Makedonija), Beograd:Rudarsko Geološki Fakultet, 2016
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Model za određivanje efikasnosti odvodnjavanja bunarima na primeru površinskog kopa «Drmno»
Anđica J. Kričković (2003)Anđica J. Kričković. Model za određivanje efikasnosti odvodnjavanja bunarima na primeru površinskog kopa «Drmno», Beograd:Rudarsko-geološki fakultet, 2003
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils
Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteuriiOlja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov. "Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils" in Microorganisms, MDPI AG (2021). https://doi.org/10.3390/microorganisms9081691
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Kristalografsko ispitivanje nefelinskih i karnegitskih faza dobijenih postupkom termalne transformacije sintetičkih zeolita
Predrag J. Vulić (2005)Predrag J. Vulić. Kristalografsko ispitivanje nefelinskih i karnegitskih faza dobijenih postupkom termalne transformacije sintetičkih zeolita, Beograd:Rudarsko-geološki fakultet, 2005
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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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Razvoj metodologije zaštite izvorišta podzemnih voda primenom karata ranjivosti
Vladimir J. ŽIVANOVIĆ (2016)zaštita podzemnih voda, izvorište podzemnih voda, zone sanitarne zaštite, TDM metoda, kretanje podzemnih vodaVladimir J. ŽIVANOVIĆ. Razvoj metodologije zaštite izvorišta podzemnih voda primenom karata ranjivosti, Beograd:Rudarsko Geološki Fakultet, 2016
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Техничко решење површинског копа Галовићи код Косјерића од вода
Јован Тодоровић (2024)Површинска експлоатација лежишта минералних сировина, поред експлоатације и прераде подразумева и успешно одводњавање површинског копа. Одводњавање једног површинског копа треба да буде добро одабрано, да објекати одводњавања својим капацитетима могу да обезбеде сакупљање и одвођење површинских вода и успешну заштиту од подземних вода. Циљ израде овог завршног рада је избор техничког решења заштите површинског копа Галовићи од површинских и подземних вода, како би се обезбедила сигурност рада, стабилност косина и ефикасност експлоатације.Добро изабрано техничко решење одводњавања омогућава смањење ризика ...... [BUU <= &. — = = —— \ v -| — A i q ? p \ A š ·J č -- . \ _ . đ o u , - 7 es Z + u imes3 i || |j - \ · - Fž I NI 3 - m M Q8 \ [] \ \ \ ONs \ \ __ .. d | _ Z \ a l, a - ela? .~ — š < \ · eakasaa.b– oN ii š".-· { d ) 700 w \, ·–·H_ d |j a % \ ? / @_ \ \ # # ” č ; “ \ A e a u pujij ...
... - Dvl | \ i MI=\ | b ~ i pj J — – ' \ – \ ON ) e - . – _ VA \ | W |- ZOA A\M \ e „„FisKa =- — H \ a % p -. \ \ i a Ć \ee \ \ . J | \A \ “. 3 . —— & \ Ć “. MA > c _– 6od \\ - = - bo( — _ ii Pp \ -” — ~a COŠA — b » — _I i — 5 \ . es a i \ __l i - “J , \ . | _ —— = \ •. 88 \GG ...
... \ A - \QAŠ/& c — 100| “. Š | r y 4 i. MOAAA ~ | & | “ = Š 777 / Aš M x > Š - L - \ N_ _N 7 J JlereHna: ” .. . LI ” A ~ < — 7 · 2 \G A · I MN a -NJE ć - [-}GVS - rnamMw BomocaGupHmK + N \ •s p j:2 -V + 'O — = ŠA a .ONC /. 3ba O — Ps - rywna craHwua ii NJ \·\ r y . s 3 \ . i - __ Pynapcku ...Јован Тодоровић. Техничко решење површинског копа Галовићи код Косјерића од вода, 2024
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Development of an Integrated Model for Open-Pit-Mine Discontinuous Haulage System Optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević, Dejan Stevanović (2024)The selection of the optimal equipment for discontinuous haulage systems is one of the most important decisions that need to be made when an open-pit mine is designed. There are a number of influencing factors, including natural (geological and environmental), technical, economic, and social. Some of them can be expressed numerically, in certain units of measure, while others are descriptive and can be stated by linguistic variables depending on the circumstances of the project. These factors are characterized by ...Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević, Dejan Stevanović. "Development of an Integrated Model for Open-Pit-Mine Discontinuous Haulage System Optimization" in Sustainability, MDPI (2024). https://doi.org/doi.org/10.3390/su16083156
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Development of an integrated model for open-pit-mine discontinuous haulage system optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović . "Development of an integrated model for open-pit-mine discontinuous haulage system optimization" in Sustainability, MDPI (2024). https://doi.org/10.3390/su16083156
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In silico and in vitro biological evaluation: distribution of Ru(III) Schiff base complexes through the pancreatic 3D model and immersed blood vessel network
Milica Međedović, Dušan Ćoćić, Aleksandar Mijatović, Vladimir Simić, Žiko Milanović, Marijana Kosanić, Nevena Petrović, Snežana Sretenović, Ana Rilak Simović (2024)... Milanović, Z. Marković, J. Milovanović, D. Arsenijević, B. Stojanović, M. Arsenijević, M. Milovanović, B. Petrović, A. Rilak Simović. J. Inorg. Biochem., 248, 112363(2023). RJ. Hovey, J.J. O'Connell, A. Martell. J. Am. Chem. Soc., 81, 3189(1959). S. Stoll, A. Schweiger. J. Magn. Reson., 178, 42(2006) ...
... Dapprich, A.D.; Daniels, 0. Foresman, J.V.; Ortiz, J.; Cioslowski, D.J.; Fox. n.d. Y. Zhao, N.E. Schultz, D.G. Truhlar. J. Chem. Theory Comput., 2, 364(2006). A.D. Becke, E.R. Johnson. J. Chem. Phys., 123, 154101(2005). A. Tarushi, E. Polatoglou, J. Kljun, l. Turel, G. Psomas, D.P. Kessissoglou. Dalton ...
... Alzahrani, A. Mahran, M.E. Khalifa, N.M. El- Metwaly. J. Mol. Struct., 1242, 130693(2021). 8 L.H. Abdel-Rahman, A.M. Abu-Dief, H. Moustafa, A.A.H. Abdel-Mawgoud. Arab. J. Chem., 13, 649(2020). 9 P. Longo, A. Catalano, A. Mariconda, M.S. Sinicropi, J. Ceramella, D. lacopetta, C. Saturnino. Antibio ...Milica Međedović, Dušan Ćoćić, Aleksandar Mijatović, Vladimir Simić, Žiko Milanović, Marijana Kosanić, Nevena Petrović, Snežana Sretenović, Ana Rilak Simović. "In silico and in vitro biological evaluation: distribution of Ru(III) Schiff base complexes through the pancreatic 3D model and immersed blood vessel network" in Journal of Coordination Chemistry, Informa UK Limited (2024). https://doi.org/10.1080/00958972.2024.2303736
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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... − τ−n) · xd−2 + 1 + d/2−2 ∑ j=1 ǫj(xd−2−j + xj) + ǫd/2−1xd/2−1 , of the Salem number τn satisfies |ǫk| < ǫ, k = 1, . . . , d/2 − 1. We denote (2.4) − τn − τ−n = T 220 Dragan Stankov Pn(x) = (x2 + Tx + 1) · xd−2 + 1 + d/2−2 ∑ j=1 ǫj(xd−2−j + xj) + ǫd/2−1xd/2−1 = xd + ...
... 1 are exp(±π+2jπ d−2 i), j = 0, 1, . . . , d/2 − 2. We denote conjugates of τ by (2.1) τ−1, exp(±2iπω1), . . . , exp(±2iπωd/2−1). Numbers 1, ω1, . . . , ωd/2−1 are Q-linearly independent [1, proof of Theo- rem 5.3.2]. According to the Kronecker’s theorem consider (wj)2≤j≤d/2 ∈ Rd/2−1 with µ = (1/2+0 ...
... x8+1, vertices of the regular octagon. ε > 0 there exists an arbitrarily large integer n such that (2.2) ∣ ∣ ∣ ∣ nωj − 1/2 + j − 1 d − 2 ∣ ∣ ∣ ∣ < ε (mod 1) (j = 1, 2, . . . , d/2 − 1). Since a coefficient of a polynomial is a continuous function of its roots, for every ǫ > 0 there exists ...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