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Упит dcterms_subject_txt:General Materials Science

853 items

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... growing number and availability of learning materials, had a strong impact on changes in learning environments. New learning environments are needed, requiring appropriate technology to facilitate access to and management of learning materials in specific domains. Bearing this in mind, d ...
    ... considerably, as mathematical materials in Serbian are available in different formats, alphabets and dialects. Besides coping with different ways of writing mathematical formulae, one of the main challenges in obtaining a searchable format of these materials is the conversion of source files ...
    ... Mathematical Formulae. A Lecture Notes in Computer Science, 4120 (1), pp. 241- 253. [6] Iancu, M., Kohlhase, M., Prodescu, C. (2014). Representing, Archiving, and Searching the Space of Mathematical Knowledge. Lecture Notes in Computer Science, 8592 (1), pp. 26- -30. [7] Lozier, L. D., (2003) ...

  • 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)
    Multidisciplinary

  • Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)
    General Earth and Planetary Sciences

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... ained/carbon-capture/ http://dx.doi.org/10.1155/2014/828131 https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon https://www.energy.gov/fe/science-innovation/carbon-capture-and-storage-research/carbon-capture-rd/pre-combustion-carbon ...
    ... of partial pressures of gas components along the membrane is a driving force of its movement through the membrane. Specially designed membrane materials allow the selective permeation [6, 11,29], and this separation works on the principle that some gases are more soluble and pass through the membrane ...
    ... process conditions [21,29]. Increased concentration of CO2 in the mixture increases the separation efficiency [11]. Different types of membrane materials such as polymeric, ceramic, zeolite, carbon or metallic influence on selectivity and permeability of the membrane [21,29]. A very important cha ...

  • Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia

    Maja Milošević, Mihovil Logar, Biljana Đorđević (2021)
    ... Meeting / 3rd Symposium Clays & Ceramics 2021. Book of Abstracts. The Latvian Clay Science Society. 2021, 49 pages Scientific Committee Reiner Dohrmann AIPEA Jon Fossum Norwegian University of Science and Technology Steve Hillier The James Hutton Institute Kalle Kirsimäe ...
    ... and actively coexist until today. This also brings a rise in imitations of pottery manufacture. The village of Zlakusa lacks proper materials, thus the raw clay originates from the nearby village of Dobrodo [1]. All the investigated pots were made from clay body prepared with raw clay ...
    ... traditional hand clay pottery making in Zlakusa, Serbia. Acknowledgements: The present study has been supported by the Ministry of Education, Science and Technological Development, Serbia References : [1] Milošević M., Dabić P., Kovač S., Kaluđerović L. & Logar M. (2019) Mineralogical study ...

  • 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
    ... bentonite, palygorskite-sepiolite, and common clays. In Developments in Clay Science 2; Elsevier Science: Amsterdam, The Netherlands, 2007; pp. 180+viii. 43. Simić, V. Contribution to the geological terminology of raw materials for structural ceramics. In Proceedings of the IV Interna- tional Conference ...
    ... sedimentological point of view), and all mineral raw materials used in the clay- based structural products (ceramics), such as loess, oil shales, separation tailings rich in organic matter, products obtained by washing of coal and other natural raw materials. The territory of Serbia is very rich in common ...
    ... with variable quality of mineral raw materials - 50–100 100–200 Deposits of medium size, bedded and lenticular, without uniform structure - 25–50 50–150 Resources 2021, 10, 63 7 of 18 and thickness, with variable quality of mineral raw materials 3 Deposits with very variable structure ...

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...
    korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd
    ... deformation modulus, and dynamic deformation modulus values obtained by field tests. Introduction The compaction and bearing capacity of natural materials are the most important indicators that must be satisfied during the construction of the foundation layers of pavements. Control procedures are used ...
    ... extremely underrepresented in the literature, probably owing to the low preva- lence of this method worldwide. The first CBR, study considered mineral materials for roads [1] and report- ed good correlation between static and dynamic test results. A previous CBR, study [2] has presented re- sults for ...
    ... of results obtained under different conditions, and the dependence between the parameters can be consid- ered to evaluate the suitability of materials and the compaction and load capacity in road construction. In the present study, this device was used for measurements in the laboratory and at ...

  • Hydrogeochemical approach to estimate the quality of bottled waters in Serbia

    Marina Ćuk, Maja Todorović, Jovana Šisović, Jana Štrbački, Jakov Andrijašević, Petar Papić (2015)
    General Chemical Engineering, General Chemistry

  • Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming

    Vladimir Jovanović, Dragana Nišić, Vladimir Milisavljević, Dejan Todorović, Dragan Radulović, Branislav Ivošević, Sonja Milićević (2022)
    General Chemical Engineering, General Chemistry

  • Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry

    Katarina Urošević, Zoran Gligorić, Igor MIljanović, Čedomir Beljić, Miloš Gligorić (2021)
    Multiple criteria decision making (MCDM) is a supporting tool which is widely spread in different areas of science and industry. Many researchers have confirmed that MCDM methods can be useful for selecting the best solution in many different problems. In this paper, two novel methods are presented and applied on existing decision-making processes in the mining industry. The first method is multiple criteria ranking by alternative trace (MCRAT) and the second is ranking alternatives by perimeter similarity (RAPS). These ...
    višekriterijumsko odlučivanje, nove metode, rudarstvo, šeme miniranja

  • Crystal structure of K3EuSi2O7

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu
    ... from the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant No. III45007 and III45015); Ministry of Education, Science and Technological Development of the Republic of Serbia & Austria Federal Ministry of Education, Science and Research (project No. 45 ...
    ... Thus, the crystal structure of this compound, K3EuSi2O7, has not been described in the literature so far. EXPERIMENTAL Materials and measurements All the materials were of analytical reagent grade and used as received without further purification. The crystal structure of K3EuSi2O7 was analyzed ...
    ... of a wide range of optical and magnetic properties combined with high thermal stability.1‒9 All this makes them very interesting and promising materials for different applications. REE silicates also exhibit a broad structural diversity.10 A highly adaptive framework can incorporate almost all REEs ...

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... histories. GHG production was studied along with a range of physical and chemical parameters that are crucial for microbial growth and activity. 2. Materials and methods 2.1. Sampling sites Lignites were collected from 5 active coal mines located in Central Europe. In Poland, thesewere theBełchatów, ...
    ... (55-68% range). Only PGB-W1 contained more mineral matter, which resulted in a reduced TOC (39%) (Table 2). Generally, the TOC content of the studied materials corresponded with their rank (Strapoc et al., 2011). The reaction of the analysed lignites was also alike and in the neutral range (pH6–7.7). The ...
    ... physical and chemical prop- erties of lignites, shows that there was significant separation among the samples (Fig. 4). This confirms that the studied materials created dis- tinct environmental niches and points to the fact that the indigenous microbial communities inhabiting the lignites may carry out different ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... tal Science & Technology, 55(13), p.9209-9220. [185] Nugroho, N.D., Rosita, W., Perdana, 1., Bendiyasa, LM., Mufakhir, F.R. and Astuti, W., 2019, February. Iron bearing oxide minerals separation from rare earth elements (REE) rich coal fly ash. In /OP Conference Series: Materials Science and ...
    ... Wang, C., 2023. 7heory and application of rare earth materials. Springer Nature. [36] Dorenbos, P., 2012. A review on how lanthanide impurity levels change with chemistry and structure of inorganic compounds. ECS Journa! of Solid State Science and Technology, 2(2), p.R3001. [37] Cotton, S., 2024 ...
    ... studies. Journa! of membrane science, 446, p.106-112. [208] Zheng, X., Zhang, F., Liu, E., Xu, X. and Yan, Y., 2017. Efficient recovery of neodymium in acidic system by free-standing dual-template docking oriented ionic imprinted mesoporous films. ACS Applied Materials & Interfaces, 9(1),p.730-739 ...

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... compressional behavior of talc: A mineral of interest in petrology and materia! science. Phvs. Chem. Miner. 2013, 40, 145-156. [CrossRet] Hanawalt, J.D.; Rinn, H.W.; Frevel, L.K. Identification of Crystalline Materials. d. Eng. Anal. Chem. 1938, 10, 457–513. [CrossReft] Gatta, G.D.; Rinaldi, R ...
    ... Corsica have shown that these asbestos-reinforced artefacts have been produced at least since the Middle Materials 2020, 13, 3597; doi:10.3390/ma13163597 www.mdpi.com/journal/materials Materials 2020, 13, 3597 2of18 Ages in the northeast part of the island, where there are numerous ophiolite and ...
    ... association of two brittle materials, i.e., a composite material, can give rise to a nonbrittle material which can resist fracture [1-3]. Defects no longer determine the ultimate strengith of such a material, and it becomes possible to predict the strength that these materials will be able to support ...

  • Human Hemoglobin and Antipsychotics Clozapine, Ziprasidone and Sertindole: Friends or Foes?

    Lena Platanić Arizanović, Nikola Gligorijević, Ilija Cvijetić, Aleksandar Mijatović, Maja Krstić Ristivojević, Simeon Minić, Aleksandra Nikolić Kokić, Čedo Miljević, Milan Nikolić (2023)
    Packed with hemoglobin, an essential protein for oxygen transport, human erythrocytes are a suitable model system for testing the pleiotropic effects of lipophilic drugs. Our study investi gated the interaction between antipsychotic drugs clozapine, ziprasidone, sertindole, and human hemoglobin under simulated physiological conditions. Analysis of protein fluorescence quenching at different temperatures and data obtained from the van’t Hoff diagram and molecular docking indicate that the interactions are static and that the tetrameric human hemoglobin has one binding site for ...
    Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Computer Science Applications, Spectroscopy, Molecular Biology, General Medicine, Catalysis

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... of herbicide S-metolachlor with inorganic and organically modified montmorillonite from Bogovina (Boljevac municipality, Serbia). MATERIALS AND ME THODS Materials HDTMA-bromide was obtained from Alfa-Aesar Chemical Company (Karlsruhe, Germany), with a purity of 98%. Phenyltrimethylammonium chloride ...
    ... available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs SERBIAN SOCIETY OF SOIL SCIENCE Soils for Future under Global Challenges FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIEKD MONTMORILLONITE ...
    ... Also, the formation of a hydrogen bond occurs between the molecules of S-metolachlor and the molecules of water 329 SERBIAN SOCIETY OF SOIL SCIENCE Soils for Future under Global Challenges that are in the interlayer space and/or oxygen on the surface of the tetrahedral sheet of the montmorillonite ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel (2016)
    General Earth and Planetary Sciences
    ... during the Cretaceous compression. The general south-eastward tectonic transport during D, cannot explain the increase in the metamorphic grade from east to West observed in the studied area. This metamor- phic pattern must be related to a general westward thrust- ing and thickening of the ...
    ... is related to isoclinal folding, commonly preserved as up to decimetre- scale quartz-feldspar rootless fold hinges. D, is associ- ated with general south-eastward tectonic transport and refolding of earlier structures into recumbent metre- to kilometre-scale tight to isoclinal folds. Stages ...
    ... observed along the Vrvi Kobila shear zone (Figs. 4d, 6). Int J Earth Sci (Geol Rundsch) (2017) 106:1665–1692 This south-castward shearing and the general south-cast- north-west orientation of fold axes b, are considered to be related to deformation stage D». The lineations oriented dif- ferently ...

  • Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism

    E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal (2017)
    Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities