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Упит dcterms_subject_txt:Optical and Magnetic Materials

2378 items

  • Geopolymer materials based on the electric arc furnace slag

    Nikolić Irena, Častvan Janković Ivona, Radmilović Vuk, Karanović Ljiljana, Marković Smilja, Mentus Slavko, Radmilović Velimir (2013)

  • Titanium oxyde-Materials for greener environment - Оксиди титана-Материјали за здравију животну средину

    Veljković Ivana, Poleti Dejan, Karanović Ljiljana, Simičić Miloš, Zdujić Miodrag, Jovalekić Čedomir (2010)

  • Polymorphism and photoluminescence properties of K3ErSi2O7

    Predrag Dabić, Marko G. Nikolić, Sabina Kovač, Aleksandar Kremenović (2019)
    alkalni silikati elemenata retkih zemalja, silikati lantanoida, polimorfizam, fotoluminescencija, kristalna struktura

  • BST Ceramics Obtained by Hydrothermally Assisted Complex Polymerization Method

    Ćirković Jovana, Vojisavljević Katarina, Vulić Predrag, Dojčinović Biljana, Branković Zorica, Srećković Tatjana, Branković Goran (2015)

  • Application of the Final Flotation Waste for Obtaining the Glass-ceramic Materials

    Mira Cocić, Mihovil Logar, Suzana Erić, Viša Tasić, Snežana Dević, Saša Cocić, Branko Matović (2017)

  • Primena programa UVSZ pri zaštiti od miniranja

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić (2021)
    Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske
    Program UVSZ, miniranje, potres, zaštita životne sredine
    ... miniranje, potres, zaštita životne sredine. Abstract: Application of explosive energy i.e. blasting operation, represents the main way of hard raw materials exploitation in mining industry. Very favorable techno-economic indicators are achieved by blasting, which are followed by negative effects of blasting ...
    ... miniranje, potres, zastita Zivotne sredine. Abstract: Application of explosive energy i.e. blasting operation, represents the main way of hard raw materials exploitation in mining industry. Very favorable techno-economic indicators are achieved by blasting, which are followed by negative effects of blasting ...
    ... [2] Baulovi , J., Pandula, B., Kondela, J., & Prekopová, M. (2019). Optimizing the seismic effects of blasting in quarries by timing, High Energy Materials, 11 (2), 48 − 62. DOI: 10.22211/matwys/0178 ISSN 2083-0165 [3] Coltrinari, G. (2016). Detecting seismic waves induced by blast operations at a ...

  • Photocatalytic degradation of textile dye with hydrothermally modified nanoanatase

    Simović Bojana, Poleti Dejan, Kovač Sabina, Bjelajac Anđelika, Dapčević Aleksandra, Branković Goran (2015)

  • The influence of building materials on salt formation in rural environments

    Matović Vesna, Erić Suzana, Srećković Batoćanin Danica, Colomban Philippe, Kremenović Aleksandar (2014)

  • Interaction between binding materials—the cause of damage to gabbro stone on the monument to the unknown soldier (Serbia)

    Matović Vesna, Vasković Nada, Erić Suzana, Srećković Batoćanin Danica (2010)

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... troubleshooting, required workforce per norm, all spare parts, materials and drawings necessary to carry out the works, as shown in Figure 4. Figure 3. Recording of production data This program system is used for issuing and monitoring of realization of internal orders for procurement of ...
    ... of necessary equipment or spare parts, requisitions of materials and spare parts from the warehouse, orders to the Commercial Department concerning services of third parties, orders for obtaining drawings of technical documentation, orders for prospective drawing up of projects required, orders for ...
    ... with parameters for report generation and the preview of the report. Reporting and reviews on maintenance enable insight into operative readiness and circumstances and condition of production and other equipment, performed maintenance works, maintenance costs and other reviews based on available data ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... involved, which would lead to equivalent opportunities and up to date education materials. Firstly, a brief history and current state of the art of terminological resources are presented, followed by an overview of BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) ...
    ... Western Balkans. Partners in BAEKTEL project produce materials in Serbian, Bosnian and Montenegrin language. When it comes to morphology, the aforementioned languages are quite similar, therefore it is possible to use the Serbian morphological dictionary. Serbian morphological dictionaries include semantic ...
    ... (NLP) has a two-faceted approach to education where one involves e-learning and computer-assisted learning and instruction and the other consists of NLP tools for analysis and use of language by machines [1]. The usage and application of the research done in the field of the NLP has been present ...

  • Split-Desktop software for the analysis of fragment size distribution of blasted rock mass

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)
    Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...
    Split-Desktop softver, drobljenje stena, miniranje, analiza, digitalna obrada fotografija

  • 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
    ... J. and Weiss R. (1957) Das Kristallgitter des Kieserits MgSO4·H2O. Naturwiss 44: 338-339. Lindberg M.L. and Pecora W.T. (1955) Tavorite and barbosalite, two new phosphate minerals from Minas Gerais, Brazil Am Mineral 40: 952-966. Longo J.M. and Arnott R.J. (1970) Structure and magnetic properties ...
    ... Metson J.B. and Bancroft G.M. (1984) 57Fe Mössbauer spectra of perovskite and titanite. Can Mineral 22: 689-694. Muthuraman M., Dhas N.A. and Patil K.C. (1994) Combustion synthesis of oxide materials for nuclear waste immobilization. Bull Mater Sci 17: 977-987. Muthuraman M. and Patil K.C. (1998) ...
    ... Chavan S.V., Sastry P.У. and Tyagi A.K. (2006) Deagglomeration and fractal behavior of Y2O3 nano-phase powders. Scripta Mater 6: 569-572. Chavan S.V. and Tyagi A.K. (2005) Nanocrystalline ceria from carbon free materials. Ceram Int 5: 731-735 Yen W.M., Shionoya S. and Yamamoto H. (2007) Fundamentals ...

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... of unused post-mining land inside and outside ex-mining zone. Land outside an ex-mining zone includes (1) landfill; (2) stockpiling of raw materials; (3) transportation roads; (4) plant/processing; (5) offices and housing. For the successfully recultivation and post-mining activities, few steps must ...
    ... degradation and pollution by harmful materials. Only valid basic legal acts are listed here: – . Law on Environmental Protection, - _ Lawon Agricultural Land, - Waterlaw, - _ Law -on Forests, - . Law on Waste Management, - _ Lawon Environmental Impact Assessment, - _ Lawon Strategic ...
    ... of preventing environmental damage and also for humans. Mineral and coal mining often increases soil density, erosion, sedimentation, landslides, disruption of flora and fauna, and disruption of public health, which leads to microclimate change (Goudie and Viles, 2013). The post-mining impacts ...

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća

  • Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine

    Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina (2015)
    ... operations, the potential energy of explosive materials is transformed into a mechanical work. That energy, in the vicinity of blasting location, destructs and crushes rock mass, a bit further creates cracks and permanent deformations in the rock mass, and even further it is being transformed into elastic ...
    ... the purpose of deposit exploitation (Trajković & Lutovac, 2006). Three blasting operations were performed. Balkanit 60/1000 and Videksil 65/2000 are used as explosive materials. The activation of explosives in boreholes was performed using detonating fuse C-12, while initiating of detonating fuse was ...
    ... velocity v is given in the form of the function, is most frequently used: nv K R  where R is a reduced distance, and K and n parameters conditioned by soil characteristics and blasting conditions, thereby v is the decreasing convex function of the variable R. By the application of the law of ...

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... mineralogy and applying the obtained knowledge in the preservation of this type of intangible cultural heritage, inscribed in the National register of ICH and as geoheritage in Serbia as well. The analysis of the phase, mineral composition and structure of the clay body was performed by optical microscopy ...
    ... without any additional tempers added. Pottery manufacture with these specific raw materials and the final function of the product is closely connected, when material dictates technique. Production of pottery and the manufacturing process is yet to be closely investigated. References Djordjević ...
    ... a mixture. As some of the slabs have rolled and rough edges they may be regarded as illite and/or halloysite. Morphology varies from short tubular, spheroidal and elongated tubules, which are the most common. EDS data confirmed hydroxides of illite and iron. Illite minerals deposited from formation ...

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography