Претрага
810 items
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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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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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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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Formaciono-mineragenetska analiza karbonatnih sedimenata Jadransko-jonske zone Crne Gore kao sirovinske baze ukrasnog građevinskog kamena
Dragan J. Ilić (2004)Dragan J. Ilić. Formaciono-mineragenetska analiza karbonatnih sedimenata Jadransko-jonske zone Crne Gore kao sirovinske baze ukrasnog građevinskog kamena, Beograd:Rudarsko-geološki fakultet, 2004
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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, modelovanje... tensor B. The components of finite strain tensors E and E∗ read (Malvern 1969): Ei j = 1 2 ( ∂ui ∂ X j + ∂u j ∂ X i + ∂uk ∂ X i ∂uk ∂ X j ) (25) E∗ i j = 1 2 ( ∂ui ∂x j + ∂u j ∂xi − ∂uk ∂xi ∂uk ∂x j ) . (26) The Lagrange–Green strain tensor contains partial derivatives with respect ...
... deformation in laboratory models, J. geophys. Res., 121(4), 2852–2872. Gomes, A., Rosas, F., Duarte, J., Schellart, W., Almeida, J., Tomás, R. & Strak, V., 2019. Analogue modelling of brittle shear zone propagation across upper crustal morpho-rheological heterogeneities, J. Struct. Geol., 126, 175–197 ...
... application to subduction experiments, J. Geodyn., 100, 7–32. Searle, M.P., Elliott, J., Phillips, R. & Chung, S.-L., 2011. Crustal– lithospheric structure and continental extrusion of Tibet, J. Geol. Soc., 168(3), 633–672. Senatore, C., Wulfmeier, M., Vlahinić, I., rade, J. & Iagnemma, K., 2013. De- sign ...Taco 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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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 ...... . , µA j, . . . , µA n); B = (µB 1, . . . , µB j, . . . , µB n); C = (µC 1, . . . , µC j, . . . , µC n); (2) M assessment is obtained in the form: µM = (MAXj=1, . . . , MAXj=10) = (µM 1, . . . , µM 10) where: MAXj = max{MINo}, for every j and MINo = min{µA j = 1, . . . , 10, µB j = 1, . . ...
... In dependence of μ, fuzzy number (FN) can be presented in form (1): FN = (μ j = 1, … μ j = 10) (1) Linguistic variables (H) can be presented in the same form. For example, if H = Very low, μ = 1 for j = 1, 2; μ = 0 for j = 3, ..., 10. Other fuzzy sets can be written as: low = (0/1, 0/2, 1/3, 1/4 ...
... In dependence of µ, fuzzy number (FN) can be presented in form (1): FN = (µ j = 1, . . . µ j = 10) (1) Linguistic variables (H) can be presented in the same form. For example, if H = Very low, µ = 1 for j = 1, 2; µ = 0 for j = 3, ..., 10. Other fuzzy sets can be written as: low = (0/1, 0/2, 1/3, 1/4 ...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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The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia
... of Lusatia I. Kojic, J. Kus, D. Zivotic, K. Stojanovic Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia | I. Kojic, J. Kus, D. Zivotic, K. ...
... Montpellier, France THE POTENTIAL OF BIOMARKERS TO DISTINGUISH LOWER AND MIDDLE MIOCENE LIGNITES FROM THE COAL-MINING DISTRICT OF LUSATIA I. Kojić1, J. Kus2, D. Životić1, K. Stojanović1 1University of Belgrade, Serbia 2Federal Institute for Geosciences and Natural Resources, Germany The organic ...
... References Bechtel, A., Sachsenhofer, R.F., Markic, M., Gratzer, R., Lücke, A., Püttmann, W., 2003. Organic Geochemistry 34, 1277–1298. Kus, J., Dolezych, M., Schneider, W., Hofmann, T., Visiné Rajczi, E., 2020. International Journal of Coal Geology 217, 103283. Nytoft, H.P., Kildahl-Andersen ...I. Kojic, J. Kus, D. Zivotic, K. Stojanovic. "The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia" in 30th International Meeting on Organic Geochemistry (IMOG 2021), European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202134092
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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 pasteurii... Arctic seawater. PLoS ONE 2007, 12, e0181860. [CrossRef] [PubMed] 38. Guo, L.; Ye, L.; Zhao, Q.; Ma, Y.; Yang, J.; Luo, J. Comparative study of MALDI-TOF MS and VITEK 2 in bacteria identification. J. Thorac. Dis. 2014, 6, 534–538. 39. Abdel Samad, R.; Al Disi, Z.; Mohammad Ashfaq, M.Y.; Wahib, S.M.; Zouari ...
... rice under saline conditions. J. Plant. Inter. 2014, 9, 379–387. [CrossRef] 42. Orhan, F.; Gulluce, M. Isolation and characterization of salt-tolerant bacterial strains in salt-affected soils of erzurum, Turkey. Geomicrobiol. J. 2014, 32, 521–529. [CrossRef] 43. Zhang, J.; Xie, L.; Huang, X.; Liang, ...
... tion of stone monuments a worldwide issue. Open Conf. Proc. J. 2016, 7, 29–38. [CrossRef] 6. Tiano, P.; Biagiotti, L.; Mastromei, G. Bacterial bio-mediated calcite precipitation for monumental stones conservation: Methods of evaluation. J. Microbiol. Meth. 2019, 36, 139–145. [CrossRef] 7. Ersan, Y.; ...Olja 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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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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Direct selective lead, copper and zinc minerals flotation from polymetallic ore “Podvirovi”
Lazić Predrag, Vučinić Dušica, Stanojev J., Micović B.. "Direct selective lead, copper and zinc minerals flotation from polymetallic ore “Podvirovi”" in Journal of Mining Science 46 no. 6, :Elsevier (2010): 690-694
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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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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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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 polynomialsDragan 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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Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... https:// doi. org/ 10. 1016/j. energy. 2018. 07. 157 Spriet J, McNabola A, Neugebauer G, Stoeglehner G, Ertl T, Kretschmer F (2020) Spatial and temporal considerations in the performance of wastewater heat recovery systems. J Clean Prod 247:119583. https:// doi. org/ 10. 1016/j. jclep ro. 2019. 119583 ...
... China J Clean Prod 255:120210. https:// doi. org/ 10. 1016/j. jclep ro. 2020. 120210 Maddah S, Deymi-Dashtebayaz M, Maddah O (2020) 4E analysis of thermal recovery potential of industrial wastewater in heat pumps: an invisible energy resource from the Iranian casting industry sector. J Clean Prod ...
... external heat supply, Eel,aux[MWh] Auxiliary electricity, (1)fp = ∑ Eifp,i + Qextfp,ext + Eel,auxfp,el ∑ Qdel,j fp,el [ ∕ ] Primary energy factor for electricity production, Qdel,j[MWh] Delivered heat to the jth consumer. Useful annual heat supplied per degree day and heat- ing area (qDD) ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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Pleistocena small Vertebrate studies in Serbia (Balkan Peninsula, SE Europe): State of the Art and Perspectives
Jovanović Mihajlo, Đurič Dragana, Bogićević Katarina, Nenadić Draženko, Agustí J., Blain H.-A (2018)Jovanović Mihajlo, Đurič Dragana, Bogićević Katarina, Nenadić Draženko, Agustí J., Blain H.-A. "Pleistocena small Vertebrate studies in Serbia (Balkan Peninsula, SE Europe): State of the Art and Perspectives" in Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontology, Caparica, Portugal June 26th-July 1st, Caparica, Portugal: (2018): 90-90
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Pleistocena small Vertebrate studies in Serbia (Balkan Peninsula, SE Europe): State of the Art and Perspectives
Jovanović Mihajlo, Đurič Dragana, Bogićević Katarina, Nenadić Draženko, Agustí J., Blain H.-A (2018)Jovanović Mihajlo, Đurič Dragana, Bogićević Katarina, Nenadić Draženko, Agustí J., Blain H.-A. "Pleistocena small Vertebrate studies in Serbia (Balkan Peninsula, SE Europe): State of the Art and Perspectives" in Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontology, Caparica, Portugal June 26th-July 1st, Caparica, Portugal : (2018): 90-90
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Nonequilibrium athermal random-field Ising model on hexagonal lattices
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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ZnFe2O4 antiferromagnetic structure redetermination
Kremenovic Aleksandar S, Antic Bratislav V, Vulic Predrag J, Blanusa Jovan L, Tomic Aleksandra (2017)Kremenovic Aleksandar S, Antic Bratislav V, Vulic Predrag J, Blanusa Jovan L, Tomic Aleksandra. "ZnFe2O4 antiferromagnetic structure redetermination" in JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 426, Sara Burgerhartstraat 25; Amsterdam, 1055 KV; Netherlands; Subscr. to: Elsevier B:Elsevier BV ^North-Holland (2017): 264-266. https://doi.org/10.1016/j.jmmm.2016.11.071