Претрага
633 items
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Mineral resources in the Republic of Serbia: A Driving Force for Economic Development – Pro et Contra
Jelenković Rade (2014)Jelenković Rade. "Mineral resources in the Republic of Serbia: A Driving Force for Economic Development – Pro et Contra" in 4nd International Conference Mineral resources in the Republic of Serbia: A Driving Force for Economic Development, Beograd:TGI Executive Meetings (2014)
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Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm
Information about the relative importance of each criterion or the weights of criteria can have a significant influence on the ultimate rank of alternatives. Accordingly, assessing the weights of criteria is a very important task in solving multi-criteria decision-making problems. Three methods are commonly used for assessing the weights of criteria: objective, subjective, and integrated methods. In this study, an objective approach is proposed to assess the weights of criteria, called SPC method (Symmetry Point of Criterion). This point ...Вишекритеријумско одлучивање, тежине критеријума, тачка симетрије критеријума, налазиште минерала, алгоритам, процена учинкаZoran Gligorić, Miloš Gligorić, Igor Miljanović, Suzana Lutovac, Aleksandar Milutinović. "Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm" in Computer Modeling in Engineering & Sciences (2023). https://doi.org/10.32604/cmes.2023.025021
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... gligoricorgf.bg.ac.rs, jelena.majstorovicorgf.bg.ac.rs, luka.crnogoracrgf.bg.ac.rs Abstract: In mining, explosives are primarily used to obtain mineral raw material from hard rocks. Explosive charges with hundreds of kilograms per a drillhol and blasting with dozens and even hundreds of tonnes of an ...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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Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
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Serbia: Mineral Policy
Vladimir Simić (2017)Vladimir Simić. "Serbia: Mineral Policy" in Encyclopedia of Mineral and Energy Policy, Springer Berlin Heidelberg (2017). https://doi.org/10.1007/978-3-642-40871-7_41-1
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Orientation and optical properties of methylene blue crystal for better understanding of interactions with clay mineral surface
Milošević Maja, Logar Mihovil (2013)Milošević Maja, Logar Mihovil. "Orientation and optical properties of methylene blue crystal for better understanding of interactions with clay mineral surface" in Geophysical Research Abstracts 15, Vienna, Austria:EGU (2013)
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Orientation and optical properties of methylene blue crystal for better understanding of interactions with clay mineral surface
Milošević Maja, Logar Mihovil (2013)Milošević Maja, Logar Mihovil. "Orientation and optical properties of methylene blue crystal for better understanding of interactions with clay mineral surface" in Geophysical Research Abstracts Geophysical Research Abstracts Geophysical Research Abstracts 15, Vienna, Austria :Copernicus Publications (2013)
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... from powders with core-shell structure. J. Appl. Phuys. 2010, 107, 104106. [CrossRef] Macdonald, J.R. Impedance Spectroscopy: Emphasizing Solid Materials and Systems; Wiley: Hoboken, NY, USA, 1987. Nuzhnyy, D.; Bovtun, V.; Savinov, M.; Kempa, M.; Petzelt, J.; Kaman, O.; Klementov4, M.; Kuličkov4A ...
... D.; Ksenevich, V.; Bychanok, D.; Selskis, A.; uzhir, P.; et al.: The Phosphate-Based Composite Materials Filled with Nano-Sized BaTiOy and Fes3Oux: Toward the Unfired Multiferroic Materials. Materials 2021, 14, 133. [CrossRef] [PubMed] Omelyanchik, A.; Antipova, V.; Gritsenko, C.; Kolesnikova, V ...
... Serbia Faculty of Agriculture, University of Belgrade, Nemanjina 6, Zemun, 11000 Belgrade, Serbia Section for Amorphous Materials, Joint Laboratory for Advanced Materials of SASA, Faculty of Technical Sciences Čačak, University of Kragujevac, Svetog, Save 65, 32000 Čačak, Serbia * · Correspondence: ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Mineral šabazit kao cement u miocenskim konglomeratima Slatine kod Bora (istočna Srbija)
Predrag Dabić, Predrag Vulić, Suzana Erić, Violeta Gajić, Nebojša Vasić. "Mineral šabazit kao cement u miocenskim konglomeratima Slatine kod Bora (istočna Srbija)" in Kongres geologa u Bosni i Hercegovini sa međunarodnim učešćem - Zbornik radova no. 1, Tuzla, BiH:Udruženje geologa Bosne i Hercegovine (2015): 90-91
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A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)
Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik (2023)Regarding the aspect of mineral, thermo-mineral, and thermal waters, on the territory of the Republic of North Macedonia, there are 65 registered locations, of which 8 are categorized as spas. This includes the Kežovica spa, also known as the Štipska spa. In the vicinity of Kežovica Spa is the thermo-mineral L’Dži spring with mineralization around 1.3 g/L and the water temperature at the time of sampling was 50.1 °C. Spring L’Dži is generated by a fault structure and is ...Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik. "A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)" in National Conference with International Participation “GEOSCIENCES 2023”, Review of the Bulgarian Geological Society, Sofia : Bulgarian Geological Society (2023)
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A Tel Platform Blending Academic And Entrepreneurial Knowledge
... OER are biased towards the so called "big" languages, as it includes a powerful language support system, which enables the publishing of learning materials in various languages. Keywords: Technology enhanced learning, e-Learning, Open courseware, Open educational resources 1. INTRODUCTION ...
... tutors, virtual learning communities, and learning management systems (LMS) — have enabled further advances in the sharing of educational ideas, materials, and knowledge" [2]. The idea and practice of offering free educational resources in the form of courses through the Internet in the form ...
... can be perceived as part of the broader open educational resources (OER) initiative, which defines open educational resources as “digitised materials offered openly and freely to educators, students, and self-learners to use and reuse for teaching, learning, and research.” [3] In this paper ...Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović. "A Tel Platform Blending Academic And Entrepreneurial Knowledge" in Proceedings of the The Fourth International Conference on e-Learning (eLearning-2013), September 2013, Belgrade, Serbia, Belgrade, Serbia : Belgrade Metropolitan University (2013)
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Значај петрографске анализе флуидних инклузија
Стефан Петровић, Милош Велојић (2022)У раду је истакнут значај петрографске анализе током истраживања флуидних инклузија и приказане могућности ове методе на примерима неких од карактеристичних петрографских појава из различитих минерала. Петрографска анализа је први корак у испитивању флуидних инклузија. Правилно спроведена, петрографска анализа омогућава одређивање генетске везе флуидних инклузија и минерала домаћина, препознавање карактеристика флуидних инклузија и релевантну интерпретацију података из наредних корака истраживања. Петрографском анализом се дефинишу: а) дистрибуција флуидних инклузија у минералу; б) облик, величина и фазни састав флуидних инклузија; в) групације ...Стефан Петровић, Милош Велојић. "Значај петрографске анализе флуидних инклузија " in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2022)
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Ultraviolet-photoluminescence and trace element analyses in Ga-rich sphalerite from the Djebel Gustar Zn-Pb deposit, Algeria
Aleš Šoster, Viktor Bertrandsson Erlandsson, Miloš Velojić, Phillip Gopon. "Ultraviolet-photoluminescence and trace element analyses in Ga-rich sphalerite from the Djebel Gustar Zn-Pb deposit, Algeria" in Ore Geology Reviews, Elsevier BV (2023). https://doi.org/10.1016/j.oregeorev.2023.105474
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Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo
Aleksandar Madžarević, Pavle Janković (2022)Oblast primene prirodnog gasa je veoma široka. Kao energent može se koristiti za proizvodnju energije u elektranama, toplanama i postrojenjima za kombinovanu proizvodnju energije ili za zadovoljavanje različitih toplotnih potreba u industriji i širokoj potrošnji. Gas se može upotrebiti i kao sirovina u hemijskoj i petrohemijskoj industriji, a tokom poslednjih decenija nalazi primenu i u saobraćaju kao pogonsko gorivo u SUS motorima. Sa ekološkog stanovišta, prirodni gas predstavlja najprihvatljiviji izvor energije u poređenju sa drugim fosilnim gorivima. Pri sagorevanju ...Aleksandar Madžarević, Pavle Janković. "Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo" in Međunarodni Kongres o procesnoj industriji - PROCESING '22, Beograd : SMEITS, Društvo za procesnu tehniku (2022)
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Hidrohemijske karakteristike termomineralnih voda Mataruške Banje
Snežana Kretić, Jana Štrbački (2022)Mataruška Banja je naseljeno mesto u Centralnoj Srbiji, koje teritorijalno pripada opštini Kraljevo. Banja je poznata po prirodnim lekovitim vodama visokih temperatura. Formiranje termomineralnih voda vezuje se za rasprostranjenje magmatskih stena. Cilj rada je definisanje hidrohemijskog sastava ovih voda i razmatran je kroz rezultate osam kompletnih hemijskih analiza i jedne skraćene hemijske analize, uzete sa bunara MB-2/81. Hidrogeološka istraživanja, uzorkovanje i izrada kompletnih hemijskih analiza izvršeni su u periodu od 1981. do 2004. godine, dok je uzorkovanje i izrada ...Mataruška Banja, termomineralne vode, kvalitet podzemnih voda, vodonik-sulfid, metasilicijumska kiselinaSnežana Kretić, Jana Štrbački . "Hidrohemijske karakteristike termomineralnih voda Mataruške Banje" in XVI Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, 28.09−02.10.2022, Zlatibor, Srbija, Rudarsko-geološki fakultet (2022)
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tetradentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are responsible ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry,General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tet radentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry, General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Optimalni model kinetike flotiranja minerala obojenih metala
Predrag Lazić (2002)Predrag Lazić. Optimalni model kinetike flotiranja minerala obojenih metala, Beograd:Rudarsko Geološki Fakultet, 2002
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Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu
Željko R. Cvetković (2013-11-18)Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara... ash to study the nature of fly ash and its utilization as a mineral admixture in concrete. In R.I, Day and F. P. Glasser, Eds. Fly Ash and Coal Conversion By Products: Characterization, Utilization and Disposal VI, 178, p. 3-33, Materials Research Society, Boston, MA. Merefield, J., Stone, I ...
... D-dolomit, Gl-minerali gline, A-anhidrit. Za aerosedimentane lokaliteta K-4 dobijen je sledeći mineralni sastav. Kvarc je dominantan mineral u oba ispitivana perioda. Sledeći mineral po zastupljenosti je feldspat koji je više prisutan od ostalih minerala dok su ostali minerali slabo zastupljeni ...
... međuatomskim rastojanjima za letnji i zimski period K – 1 K – 3 LETO ZIMA LETO ZIMA Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral 14 10,09 M 17 14,88 Co 16 10,05 M 14 10,03 M 16 7,64 G 16 10,03 M 19 7,64 G 11 5,30 D 17 7,23 Co 17 7,62 G 23 4,46 M ...Željko R. Cvetković. "Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-18)
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Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu
Željko R. Cvetković (2013-11-18)Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara... ash to study the nature of fly ash and its utilization as a mineral admixture in concrete. In R.I, Day and F. P. Glasser, Eds. Fly Ash and Coal Conversion By Products: Characterization, Utilization and Disposal VI, 178, p. 3-33, Materials Research Society, Boston, MA. Merefield, J., Stone, I ...
... D-dolomit, Gl-minerali gline, A-anhidrit. Za aerosedimentane lokaliteta K-4 dobijen je sledeći mineralni sastav. Kvarc je dominantan mineral u oba ispitivana perioda. Sledeći mineral po zastupljenosti je feldspat koji je više prisutan od ostalih minerala dok su ostali minerali slabo zastupljeni ...
... međuatomskim rastojanjima za letnji i zimski period K – 1 K – 3 LETO ZIMA LETO ZIMA Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral Ictg d Ǻ mineral 14 10,09 M 17 14,88 Co 16 10,05 M 14 10,03 M 16 7,64 G 16 10,03 M 19 7,64 G 11 5,30 D 17 7,23 Co 17 7,62 G 23 4,46 M ...Željko R. Cvetković. "Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-18)