Претрага
166 items
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... sufficient quantities [11]. Energy security is a parameter whose specificity lies in the influence of many factors, so it is not possible to define a unique methodology to determine [12]. Defining a methodological approach for determining the energy security of a country is possible only if the geopolitical ...
... It is also called a pessimistic composition due to the procedure by which it is performed—the presentation of a synthetic grade using a representative partial grade, which is defined as the best possible among the worst expected individual grades [48,49]; • Min–max composition is a fuzzy composition ...
... economy of a scenario. It is directly linked to national structures (institutions and human resources) [36], as well as the legal framework that follows relevant issues. The security of supply is a synthesis indicator that can be viewed in a very broad context. It is generally defined using a set of s ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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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 ...... removal of 44 amino acids, from its amino terminus, to give a single chain enzyme with a low pl and three disulfide bridges. Each lobe of pepsin contains a catalytic aspartic acid residue Asp?? and Porcine pepsin A (EC 3.4.23.1), a prominent member of the aspartic protease, is the principal ...
... decreased in a dose dependent manner (Figure 5 B). Figures 5 A and B shows only UV spectra in a presence ofIO0mM AP?. IR studies. IR spectra of pepsin and haemoglobin in KBr matrices in absence (solid curve 1) and in a presence 1IOmM Al ions (dotted curve 2) are presented in Figures 6 A and B. ...
... slope or intercept), (I/A) against 1 / [Al3+], where A is defined as slope or intercept in the absence of activator (Al' + ions) minus that in its presence. (1,5, 10mM) and intensity of characteristic peaks have been decreased in a dose dependent manner (Figure 5 A). However, the presence of ...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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Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite: Vibrational Spectroscopy and ab Initio Calculation
Batch adsorption experiments in the presence of oxygen were performed to study the interlayer reactions of aniline on Cu(II)-montmorillonite in aqueous solutions. At concentrations below a critical value of CC ) 2.6 mmol dm-3 only a colored Cu(II)-aniline complex is formed, characterized by a stability constant of log(Kassoc/dm3 mol-1) ) 1.5. At concentrations beyond Cc aniline polymerizes yielding a dark brown product, which is identified by two vibrational spectroscopy techniques, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and ...M. Ilić, E. Koglin, A. Pohlmeier, H. D. Narres, M. J. Schwuger. "Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite: Vibrational Spectroscopy and ab Initio Calculation" in Langmuir (2000). https://doi.org/ 10.1021/la000534d
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Malathion-induced inhibition of human plasma cholinesterase studied by the fluorescence spectroscopy method
The in vitro effect of technical grade malathion was assessed via the kinetic parameters of human plasma butyrylcholinesterase (BChE) using N-methylindoxyl acetate as a substrate for BChE. An inhibitor kinetics study demonstrated the existence of a biphasic inhibition curve, indicating high- and low-affinity binding sites of malathion. The IC50 values as calculated from the experimental inhibition curves were 1.33 × 10–9 and 1.48 × 10–5 M for the high- and low-affinity binding sites, respectively; Hill’s analysis gave 1.29 × ...V. M. Pavelkić, K. S. Krinulović, J. Z. Savić, M. A. Ilić. "Malathion-induced inhibition of human plasma cholinesterase studied by the fluorescence spectroscopy method" in Russian Journal of Physical Chemistry A, Pleiades Publishing Ltd (2008). https://doi.org/10.1134/S0036024408050312
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Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release
The interaction of dodecylsulfate anions (DS−) with homoionic Ca-, Mg-, Ni-, Cu-, Cd-, Pb- and Fe-montmorillonites were investigated. Mg- and Cd-montmorillonite do not adsorb DS−, and an anion exchange at the edges of the clay mineral does not take place. Three different adsorption processes are identified on the other montmorillonites: i) Fe-montmorillonite is covered with amorphous iron hydroxide, and DS−-anions are bound at positively charged sites. ii) On Ca- and Pb-montmorillonite DS− is precipitated as Me(DS)2. iii) On Ni- ...M. Ilic, J. Gonzalez, A. Pohlmeier, H. D. Narres, M. J. Schwuger. "Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release" in Colloid Polymer Science, Springer Science and Business Media LLC (1996). https://doi.org/10.1007/BF00656626
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Numerical modeling of Selanac debris flow propagation using SPH code
The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...... media; The generalized Biot formulation and its numerical solution’’. Int. J. Numer. Anal. Methods Geomech. 8, 71–96. Voellmy, A. (1955). .‘‘Über die Zerstörungskraft von Lawinen‘‘, Schweizerische Bauzeitung. 73: 212– 285. Wu, W. (2015). ‘’Recent advances in modelling landslides and debris flows’’ ...
... models are progressing nowadays and giving a wide range of possibilities. Some of the available approaches treat the heterogeneous and multiphase moving mass as a single-phase continuum. The others are considering two phases, solid and liquid, i.e. a granular skeleton with voids filled with either ...
... into a ‘pore pressure’ and an effective stress, and the mechanical behavior of the mixture can be described by a system of differential equations governing the dynamics of each of the phases as well as the coupling among them (Pastor et al, 2008). SPH (Smoothed Particle Hydrodynamics) is a mesh- ...Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi . "Numerical modeling of Selanac debris flow propagation using SPH code" in SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics And Geotechnical Engineering (2021)
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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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Dating intrusion and cooling of Cenozoic granitoids in the Dinarides of Southern Serbia and discussion of the geodynamic setting of Paleocene-Miocene magmatism in the Balkan Peninsula.
Schefer S., Cvetković Vladica, Fügenschuh Bernhard, Kounov A., Ovtcharova M., Schaltegger U., Schmid S. (2010)Schefer S., Cvetković Vladica, Fügenschuh Bernhard, Kounov A., Ovtcharova M., Schaltegger U., Schmid S.. "Dating intrusion and cooling of Cenozoic granitoids in the Dinarides of Southern Serbia and discussion of the geodynamic setting of Paleocene-Miocene magmatism in the Balkan Peninsula." in Geophysical Research Abstracts 12, Vienna, Austria:EGU (2010): 2530-2530
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Reprint of Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index
Životić Dragana, Bechtel A., Sachsenhofer R., Gratzer R., Radić D., Obradović M., Stojanović Ksenija (2015)Životić Dragana, Bechtel A., Sachsenhofer R., Gratzer R., Radić D., Obradović M., Stojanović Ksenija. "Reprint of Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: implication on grindability index" in International Journal of Coal Geology 157, Amsterdam, Netherlands:Elsevier BV (2015): 165-183. https://doi.org/10.1016/j.coal.2014.07.004
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Refractive Indices of Unfilled Resin Mixtures and Cured Composites Related to Color and Translucency of Conventional and Low-shrinkage Composites
Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić A. Aleksandra, Dramićanin D. Miroslav. (2015)Miletić Vesna, Jakovljević Nikola, Manojlović Dragica, Marjanović Jovana, Rosić A. Aleksandra, Dramićanin D. Miroslav.. "Refractive Indices of Unfilled Resin Mixtures and Cured Composites Related to Color and Translucency of Conventional and Low-shrinkage Composites" in Journal of Biomedical Materials Research part B: Applied Biomaterials 00B no. (published online), :Wilez Periodicals, Inc. (2015). https://doi.org/10.1002/jbm.b.33523
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Melt evolution beneath a rifted craton edge: 40Ar/39Ar geochronology and Sr-Nd-Hf-Pb isotope systematics of primitive alkaline basalts and lamprophyres from the SW Baltic Shield
Tappe Sebastian, Smart Katie A., Stracke Andreas, Romer Rolf, Prelević Dejan, van den Bogaard Paul (2016)Tappe Sebastian, Smart Katie A., Stracke Andreas, Romer Rolf, Prelević Dejan, van den Bogaard Paul. "Melt evolution beneath a rifted craton edge: 40Ar/39Ar geochronology and Sr-Nd-Hf-Pb isotope systematics of primitive alkaline basalts and lamprophyres from the SW Baltic Shield" in Geochimica et Cosmochimica Acta 173, :Pergamon (2016): 1-36. https://doi.org/10.1016/j.gca.2015.10.006
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Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG
Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić . "Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
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Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise
Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín. "Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise" in Science Advances, American Association for the Advancement of Science (AAAS) (2023). https://doi.org/10.1126/sciadv.adi2698
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Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules
I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac (2023)In this article, the biological evaluation and interaction of three selenium-based trans-palladium complexes (Pd–Se1, Pd–Se2, and Pd–Se3) with small biomolecules were performed. The UV–Vis kinetic studies on substitution reaction of synthesized complexes with selected biologically important N- and S-bonding ligands (LCys, GSH, L-Met, 50-GMP, L-His) has emphasized greater affinity of sulphur-based ligands for complex-binding, while the general order of the reactivity was L-Cys > GSH > L-Met > 50-GMP > L-His. The complex reactivity toward small biomolecules is influenced ...I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac. "Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules" in Journal of Coordination Chemistry, Informa UK Limited (2023). https://doi.org/10.1080/00958972.2023.2256934
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New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)
Nevenka Đerić, Nataša Gerzina (2014)... for the tectonic setting of the Upper Antalya Nappes.- Cretaceous Rescarch, 30, 952—060. LUŽAR-OBERITER, B., DUNKL, ., MIKES, T., BABIĆ, LJ. & VON EYNATTEN, H. (2012): Provenance of Cretaceous synorogenic sc- diments from the NW Dinarides (Croatia).– Swiss J Geosci., 105/3, 377—399. PAMIĆ ...
... in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs New data on the age ofan Upper [a(f:\č;{a{el_}:yx:bi{ew{ec|geloln}:(-}{M{aa{=}-{{0}}| in Brežđe (Western Serbia) ~ Nevenka Đerić and Nataša Gerzina y of Mining and Geology, Univ y e ...
... studied in a carbonate-clastic section from the Cretaceous sedi- mentary cover that unconformably overlies Triassic sediments of the Jadar Block. According to the identified radi- olarian associations, the studied limestone is of Santonian age. Considering the fact that these sediments belong to a broadly ...Nevenka Đerić, Nataša Gerzina. "New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)" in Geologia Croatica (2014)
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Mikroplastika u peloidima iz Srbije i Slovenije
A. Šajnović, G. Gajica, F. Prosenc, S. Stojadinović, G. Veselinović, P. Trebše, P. Dabić, B. Jovančićević (2023)... banje se prostirudužcele teritorije, a za ovu studiju uzorci peloidnog mulja uzeti su sa sledećih lokacija: Rusanda (Rus), Vrujci (Vru) ı Ovča (Ovč). Rusanda i Vrujci su aktivne banje, dok Ovča pripada malim izvorima koji su bogati peloidima i ne eksploatišu se, a koje koristi lokalno stanovništvo ...
... da Costa,J., Santos, P., Duarte, A., Rocha-Santos, T. Sci. Tota! Environ. 566-567 (2016) 15-26. 2. Alimi, O., Budarz, J., Hernandez, L., Tufenkji, N. Environ. Sci. Technol. 52 (2018) 1704-1724. 3. Schroter, L., Ventura, N. Sma// 18 (2022) 2201680. 4. Gulizia, A., Patel, K., Philippa, B., Motti ...
... Измењено: 2023-10-16 10:50:50 Mikroplastika u peloidima iz Srbije i Slovenije;Microplastics in peloids from Serbia and Slovenia A. Šajnović, G. Gajica, F. Prosenc, S. Stojadinović, G. Veselinović, P. Trebše, P. Dabić, B. Jovančićević Дигитални репозиторијум Рударско-геолошког ...A. Šajnović, G. Gajica, F. Prosenc, S. Stojadinović, G. Veselinović, P. Trebše, P. Dabić, B. Jovančićević. "Mikroplastika u peloidima iz Srbije i Slovenije" in 9. simpozijum Hemija i zaštita životne sredine EnviroChem2023, Kladovo, 4-7. jun 2023., Beograd : Srpsko hemijsko društvo (2023)
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Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation γ- → α- Fe2O3
Šaponjić A., Šaponjić Đ., Nikolić V., Milošević M., Marinović-Cincović M., Gyoshev S., Vuković M., Kokunešoski M. (2017)Šaponjić A., Šaponjić Đ., Nikolić V., Milošević M., Marinović-Cincović M., Gyoshev S., Vuković M., Kokunešoski M.. "Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation γ- → α- Fe2O3" in Science of Sintering 49 no. 2, Srbija:Serbian Academy of Sciences and Arts (2017): 197-205. https://doi.org/https://doi.org/10.2298/SOS170
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Parametri zbijanja komunalnog otpada određeni različitim laboratorijskim metodama
Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Snežana Bogdanović (2021)Zbijanje komunalnog otpada predstavlja jednu od osnovnih faza korišćenja komunalne deponije. Zbog toga je kao i kod drugih nasutih građevina, veoma korisno odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). Dobijeni rezultati mogu da posluže prilikom projektovanja kapaciteta deponije kao i prilikom definisanja obradivosti otpada. U dosadašnjoj praksi najčešći način određivanja parametra zbijanja je standardna metoda (Proktorov opit) koja se koristi u mehanici tla, uz eventualnu redukciju energije zbijanja. Međutim, različiti tretmani komunalnog otpada na ...... n of сотраспоп characteristics of fresh and degraded municipal solid waste, Wastc Disposal & Sustainable Energy, 2020. Hanson J.L., Yesiller М., Von Stockhausen S.A., Wong W. W.: Сотраспоп Characteristics of Municipal Solid Waste, Journal ог Geotechnical and Geocnvironmcental Engincering, Vol. ...
... Srbija, dragoslav.rakic(\ergf.bg.ac.rs U·dverzi!el_ и Beogradu, Rudarsko-gcološki fakultet, Beograd, Srbija, а Dg.ac.rS t u Beogradu, Rudarsko-geološki fakultet, Веоргад, Srbija, а '·lmuknkn-gmlo!kl fakultet, Beograd, Srbija, korišćenjem različitih maljeva: standardnog гаупор malja i malja sa ...
... maksimalnoj suvoj zapreminskoj težini od Yamax = 6 kN/m? - 8 kN/mš. = Б — =_ - uzorak B, Е=2500 kJ/mž 70 изогак C, E=550 kJ/m" Suv a za pr em in sk a tež ina Y ama x (k N/ m* ) 60 _— = 7—*\\ -; 55 uzorak B, E=550 kJ/m? ~ [ EN RTGR RRAAA EAA о 10 20 30 40 50 60 Optimalna vlažnost ...Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Snežana Bogdanović . "Parametri zbijanja komunalnog otpada određeni različitim laboratorijskim metodama" in Građevinski kalendar, Savez građevinskih inženjera Srbije (2021)
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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