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Упит dcterms_subject_txt:Metals and Alloys

2347 items

  • Assessment of river sediment quality according to the eu water framework directive in large river fluvial conditions. A case study in the lower Danube river basin

    Atanas Hikov, Anca-Marina Vîjdea, Irena Peytcheva, Gyozo Jordan, Prvoslav Marjanović, Zlatka Milakovska, Petyo Filipov, Milena Vetseva, Albert Baltres, Veronica Elena Alexe, Lidia-Lenuța Bălan, Marko Marjanović, Vladica Cvetković, Kristina Šarić & The Simona Project Team (2023)
    Monitoring, uzorkovanje, hazardne supstance, teški metali, organske supstance, geološka osnova, standard kvaliteta životne sredine (EQS), basen reke Dunav

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... (2013) Preparation and characterization of chrome doped sphene pigments prepared via precursor mechanochemical activation. J Alloys Compound 579: 290-294. Pantic J., Urbanovich V., Poharc- Logar V., Jokić B., Stojmenović M., Kremenović A., Matović B. (2014) Synthesis and characterization of ...
    ... Kunz M., Arlt T. аnd Stolz J, (2000) In situ powder diffraction study of titanite (CaTiOSiO4) at high pressure and high temperature. Am Mineral 85: 1465-1473. Kunz M. and Brown I.D. (1994) Out of center distortions around octahedrally coordinated d0-transition metals. J Solid State Chem 115: ...
    ... Dramićanin, M.; Abazović, N.; Vuković, N.; Kremenović, A.; Branko Matović, B.: „Preparation and characterization of chrome doped sphene pigments prepared via precursor mechanochemical activation”, J Alloys Compd 579 (2013) 290-294. Радови објављени у врхунским међународним часописима (М22) ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... (2013) Preparation and characterization of chrome doped sphene pigments prepared via precursor mechanochemical activation. J Alloys Compound 579: 290-294. Pantic J., Urbanovich V., Poharc- Logar V., Jokić B., Stojmenović M., Kremenović A., Matović B. (2014) Synthesis and characterization of ...
    ... Kunz M., Arlt T. аnd Stolz J, (2000) In situ powder diffraction study of titanite (CaTiOSiO4) at high pressure and high temperature. Am Mineral 85: 1465-1473. Kunz M. and Brown I.D. (1994) Out of center distortions around octahedrally coordinated d0-transition metals. J Solid State Chem 115: ...
    ... Dramićanin, M.; Abazović, N.; Vuković, N.; Kremenović, A.; Branko Matović, B.: „Preparation and characterization of chrome doped sphene pigments prepared via precursor mechanochemical activation”, J Alloys Compd 579 (2013) 290-294. Радови објављени у врхунским међународним часописима (М22) ...

  • Low-temperature phase transition and magnetic properties of K3YbSi2O7

    Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica
    ... projections of their angular momentum on the direction of the magnetic field. 1. Introduction Awide range of optical and magnetic properties of rare-earth elements (REE), their alloys and compounds makes them very interesting materials for different applications. In recent decades, many studies have ...
    ... crystal structures of �-K3YbSi2O7 and �0- K3YbSi2O7, the phase transition and the observed twinning are presented in Sections 3.1 and 3.2. The most relevant information about data collections and refinements is compiled in Table 2. Selected bond lengths, bond angles and research papers 586 P. Dabić ...
    ... crystal structures of 6-K3;YbSi,0, and ’- K;YbSi,O,, the phase transition and the observed twinning are presented in Sections 3.1 and 3.2. The most relevant information about data collections and refinements is compiled in Table 2. Selected bond lengths, bond angles and Experiments were carried out with ...

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... magnetic phase transitions and exchange bias effect. Journal of Alloys and Compounds, 588, 465–469. TADIC M., NIKOLIC D., PANJAN M., BLAKE G.R., 2015: Magnetic properties of NiO (nickel oxide) nanoparticles: Blocking temperature and Neel temperature. Journal of Alloys and Compounds, 647, 1061–1068 ...
    ... n of AA complexes, Materials Chemistry and Physics, 2010. 8. Vučinić-Vasić M., Kremenović A., Nikolić Aleksandar S., Colomban P., Mazzerolles L., Kahlenberg V., Antić B.: Core and shell structure of ytterbium sesquioxide nanoparticles, Journal of Alloys and Compounds, 2010. 9. Veselinović L., ...
    ... 76(AsO4)1.5(HAsO4)(H2AsO4)0.5, Journal of alloys and com- pounds : an interdisciplinary journal of materials science and solid-state che- mistry and physics, 2012. 168. Vasović N., Burić N., Todorović K., Grozdanović I.: Synchronization of the minimal models of bursting neurons coupled by delayed chemical ...

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... spectrophotometric thiocyanate determination of iron in metals, alloys, acids and salts, Analytica Chimica Acta 36: 122–129 73. Marchesi J.R., Sato T., Weightman A.J., Martin T.A., Fry J.C., Hlom S.J., Dymock D., Wade W.G. (1998) Design and evaluation of useful bacterium- specific PCR primers that ...
    ... erant iron-, and sulfur- oxidizing acidophiles isolated from metal mine-impacted environments, Extremophiles 14 (1): 9-19 40. Jameson E., Rowe O., Hallberg K., Johnson D.B. (2010) Sulfidogenesis and selective precipitation of metals at low pH mediated by Acidithiobacills sp. and acidophilic ...
    ... systems, Envionmental Microbiology 9 (7): 1761-1771 86. Rawlings D.E. (2005) Characteristics and adapatibility of iron- and sulfur- oxidizing microorganisms used for the recovery of metals from minerals and their concentrates, Microbial Cell Factories 4 (13), DOI:10.1186/1475-2859-4- 13 http://dx ...

  • Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije

    Jelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar (2023)
    Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...
    mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacija

  • Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji

    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
    U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...
    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... dis- tances for groups 1 and 2 for categories A, B and C1 are very strange, and it is not clear based on which they are defined, and they amount to 50–90–200 and 40–70–150 m, respectively. It would be geologically logical for the corresponding distances to be 100–200–400 and 50–100–200, respectively ...
    ... formal (legislative in the field of mining, and access to land) and technical/scientific (geological exploration and evaluation of a mineral deposit). The regulatory framework in Serbia is based on the Law on Mining and Geological Exploration from 2015 [1] and environmental law from 2004 [2]. General ...
    ... geological explora- tion (financed by the state and performed by the Geological Survey of Serbia) and applied geological exploration, financed by private companies. Geological exploration and min- ing are under jurisdiction of the Ministry of Mining and Energy and the mineral resources permitting regime is ...

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... influence of rock and roll on art, media and social events: gigs and discotheques (Katarina Jugov, Ivana Merdović and Jelena Radić), festivals (Milan Avdulah and Uroš Tošić), books and poetry (Marija Brašanac and Tamara Stanojčić), albums and record labels (Snježana Mirčeta and Ivan Peić), magazines ...
    ... Influence of Rock and Roll on Art, Media and Social Events Influence of Rock and Roll was visible very fast in many social spheres. Presence of rock music in media influenced its increasing popularity. Rock and roll reached wide audience through radio and TV shows, magazines, books and movies. Soon, festivals ...
    ... division of the project itself: Gigs and Discotheques; Festivals; Poetry and Books; Albums and Record Labels; Cult Radio Shows; Cult TV Shows; Filmography; Controversies and Magazines. 3.1 Gigs and Discotheques Since 1977 bands like Limunovo drvo, Igra staklenih perli and Električni orgazam appeared in ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... projects and enthusiastic teachers and students gives an excellent base for further development of OER and their effect on teaching and learning process. National community includes educational and industry institutions and also users which collaborate in order to improve OER development and sharing ...
    ... is based, in Item 5 stipulates “openness towards general public and all citizens” and in Item 8 “harmonization with the European system of higher education and enhancement of academic mobility of teaching and non- teaching staff and students”. Finally, Article 32 stipulates that the “competent Ministry ...
    ... published four books and more than 100 scientific papers related to applications of artificial intelligence methods and tools, development of language resources and tools, open educational resources and e-learning application in HE. He participated in numerous domestic and international projects ...

  • Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface

    Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)
    Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...
    multiword expression lexicon, corpus, proof-of-concept lexicon encoding

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... ash and water ratio in the thick pulp 5 3 1 + 0 + 1 + 0 + 0 + 1 60 31 Increased concentration of heavy metals in overflowing, drainage, and leachate water 5 3 1 + 0 + 1 + 1 + 0 + 1 60 32 Increased acidity of overflowing, drainage, and leachate water 5 3 1 + 0 + 1 + 1 + 0 + 1 60 33 Dam failure and flowing ...
    ... content of heavy metals. As a contemporary trend, perhaps still not sufficiently recognized, risk-based approach to environmental management could be usefully applied to the issue of aspects ranking and its prioritization. Within this approach, the significance of the environmental aspects (and its impacts) ...
    ... area of the buried humus layer Emissions of heavy metals into the surrounding land Disposal of tailings, ash and slag Improper disposal of tailings A4 Inadequate disposal of sludge Irregular sprinkling of ash landfill Transportation of coal and tailings Exhaust gas emissions during the tra ...

  • Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia

    Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)
    ... grouped together) and included the- oretical and practical (field work) demonstration. BEWARE Project Brochure and other supplementary material were prepared and printed and distributed during the 2-days Fig. 3 Pert Chart of BEWARE project Fig. 4 Opening ceremony of 2nd ReSyLAB and Start up meeting ...
    ... portal in pdf. format and it could be open for everybody. Each of 25 municipalities was supplied with the hardware and software components for tablets and desktop computers, topographic and geological maps and GPS (Fig. 7). 3. BEWARE Project portal—BEWARE web portal was launched and hosts all project ...
    ... human lives and property, especially in times of dramatic climate change effects on one hand, and urban sprawl and land consumption on the other. Usual landslide triggers are floods and high-yield rainfall, which was the case in the catastrophic cyclone Tamara episode that stroke Serbia and surrounding ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... mineral resources of Serbia are non-ferrous metals and precious metals, ferroalloy metals, partly minor and related non-metals and fissionable metals. Especially important, as regards resource potential and economic importance, are the deposits of copper and lead-zinc, with the accompanying elements ...
    ... 4). Copper and gold/silver, accompanied by iron (sulphide, oxide) and base-metals, molybdenum, and sporadically PGE are the dominant metals in this zone. The most prominent genetic and economic types of deposits are porphyry Cu-Au, high sulphidation massive sulphide Cu-Au deposits and sediment-hosted ...
    ... economic significance, limited extent and poor quality. They are located in western part of Serbia, within Kosovo, and in the eastern part of Serbia. Resources of iron and ferroalloy metals (Fe, Mn, Cr, Ni, Co, Mo, and W) are, generally speaking, rather limited and do not meet the requirements of the ...

  • Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)

    Liubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić (2020)
    Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, Serbia

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... Vojvodina and accompanying database" was realized by University of Belgrade, Faculty of Mining and Geology for Vojvodina Provincial Secretariat for Energy and Mineral Resources. The aim was to secure safe and reliable data needed for recultivation of all abandoned mines in national parks and other ...
    ... for management of exploration and exploitation permits and works in the mineral resources field. GeolIEP represents a basis for archiving and efficient handling of vector, raster and related thematic alphanumeric content in one place, as well as efficient management and usage of mineral resources ...
    ... t functionalities for viewing and sharing of geographic objects and maps, as well as interoperability with a large number of commercial and free geoinformation systems and cartographic applications. OGC (Open Geospatial Consortium) is the main international and industrial organization for ...