Претрага
2355 items
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Structural features of two novel alluaudite-like arsenates Cd1.16Zn2.34(AsO4)1.5(HAsO4)(H2AsO4)0.5 and Cd0.74Mg2.76(AsO4)1.5(HAsO4)(H2AsO4)0.5
Stojanović Jovica, Đorđević Tamara, Karanović Ljiljana. "Structural features of two novel alluaudite-like arsenates Cd1.16Zn2.34(AsO4)1.5(HAsO4)(H2AsO4)0.5 and Cd0.74Mg2.76(AsO4)1.5(HAsO4)(H2AsO4)0.5" in Journal of alloys and compounds : an interdisciplinary journal of materials science and solid-state chemistry and physics 520, Radarweg 29; Amsterdam, 1043 NX; Netherlands:Elsevier BV (2012): 180-189. https://doi.org/10.1016/j.jallcom.2012.01.002
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Some examples of interactions between certain rare earth elements and soil
... per the particles sizes but also as per mineralogical composition and therefore as per physical and chemical properties. The soil preparation comprised cleaning from foreign bodes (twigs, leaves and stones), air drying for 7 days and following that determining the hygroscopic moisture content. Min ...
... interactions between certain rare earth elements and soil ZLATKO NIKOLOVSKI1, JELENA ISAILOVIĆ2*, DEJAN JEREMIĆ3#, SABINA KOVAČ4 AND ILIJA BRČESKI2# 1Institute MOL d.o.o., Nikole Tesle 15, 22300 Stara Pazova, Serbia; 2Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 ...
... 11000 Belgrade, Serbia; 3Innovation Center of Faculty of Chemistry, University of Belgrade, Belgrade, Serbia; 4Department of Mineralogy, Crystallography, Petrology and Geochemistry, Laboratory of Crystallography, Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia ...Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski. "Some examples of interactions between certain rare earth elements and soil" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC211006095N
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... variations in optical features and garnet chemistry are the results of their two-stage evolution. The first stage and period of garnet growth is probably buffered by mineral dissolution and reactions in the country rock. The second stage is related to hydrothermal activity when W and Fe were brought into the ...
... tracer. Such application is suppor- ted by its common presence in skarn deposits and its high physical and chemical stability during weathering. Additio- nally, this mineral is easy recognizable under the microscope, and quite often macroscopically, as well. The discovery that the andradite-rich garnets ...
... produced by metasomatism or change in temperature and pressure conditions. However, the small contact-metamorphic aureole, like that on Rudnik Mt. does not display any physical evidence for major variation and does not testify to large changes of pressure and temperature. In fact, garnet has kept growing ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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Two new zincophosphates, (H3NCH2CH2NH3)2[Zn(m-PO4)2] and (NH4)[(H3N)Zn{(m-PO4)Zn}3]: Crystal structures and relationships to similar open framework zinco - and aluminophospates
Karanović Ljiljana, Poleti Dejan, Đorđević Tamara, Šutović Sabina. "Two new zincophosphates, (H3NCH2CH2NH3)2[Zn(m-PO4)2] and (NH4)[(H3N)Zn{(m-PO4)Zn}3]: Crystal structures and relationships to similar open framework zinco - and aluminophospates" in Journal of Solid State Chemistry 184 no. 9, 525 B St, Ste 1900; San Diego; CA 92101-4495:Academic Press (2011): 2506-2515. https://doi.org/10.1016/j.jssc.2011.07.030
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Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia
Dejan Ivezić, Marija Živković (2023)Finalna potrošnja energije u industrijskom sektoru čini skoro 25% finalne potrošnje energije u Republici Srbiji. Procenjuje se da je 50-70% potrošnje energije u industriji namenjeno proizvodnji toplotne energije u različitim industrijskim procesima. Deo proizvedene toplotne energije se nepovratno gubi kao energija odvedena u okolinu: prenosom toplote kroz zidove procesne opreme, dimnim gasovim, otpadnim vodama itd. Korišćenjem otpadne toplote povećava se efikasnost korišćenja primarne energije i smanjuje ukupna potreba za energijom. Otpadna toplota se može koristiti u samom industrijskom objektu ...Dejan Ivezić, Marija Živković. "Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.17I
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An investigation of polyhedral deformation in two mixed-metal diarsenates: SrZnAs2O7 and BaCuAs2O7
Kovač Sabina, Karanović Ljiljana, Đorđević Tamara. "An investigation of polyhedral deformation in two mixed-metal diarsenates: SrZnAs2O7 and BaCuAs2O7" in Acta Crystallographica, Section C: Structural Chemistry C71 no. 4, INT UNION CRYSTALLOGRAPHY, 2 ABBEY SQ, CHESTER, CH1 2HU, ENGLAND :John Wiley and Sons Inc. (2015): 330-337. https://doi.org/10.1107/S2053229615005616
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Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin
Joni prelaznih metala u kombinaciji sa različitim ligandima nude veliki broj mogućnosti za ispitivanje potencijalnih bioaktivnosti. Među jonima prelaznih metala, bakar je poznat kao endogeni metal za ljude, sa karakterističnim biološkim redoks aktivnostima i relativno jakim afinitetom za nukleobaze. Kompleksi bakra ispoljavaju svoju antitumornu aktivnost na nekoliko različitih načina, generišu veliku količinu ROS, što uzrokuje oksidativno oštećenje mitohondrija i biomakromolekula. Nađeno je da kompleksi bakra(II) imaju umeren do dobar afinitet vezivanja sa DNK, uglavnom putem interkalacije.Angelina Petrović, Aleksandar Mijatović, Rada Baošić, Jovana Bogojeski. "Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin" in 6. Konferencija mladih hemičara Srbije, Srpsko hemijsko društvo (2018)
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The use of polycyclic alkanes of sterane and terpane types in the identification of petroleum pollutants in the river Tisa sediments
Gajica Gordana, Štrbac Snežana, Šajnović Aleksandra, Stojanović Ksenija, Vasić Nebojša, Jovančićević Branimir (2013)Gajica Gordana, Štrbac Snežana, Šajnović Aleksandra, Stojanović Ksenija, Vasić Nebojša, Jovančićević Branimir. "The use of polycyclic alkanes of sterane and terpane types in the identification of petroleum pollutants in the river Tisa sediments" in 6th Symposium Chemistry and Environmental Protection - EnviroChem, Vršac:Srpsko hemijsko društvo (2013): 62-63
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Metals in the sediment and liver of four fish species from Tisza river, Serbia
Štrbac Snežana, Šajnović Aleksandra, Budakov Ljiljana, Vasić Nebojša, Kašanin Grubin Milica, Simonović Predrag, Jovančićević Branimir, Gajica Gordana (2013)Štrbac Snežana, Šajnović Aleksandra, Budakov Ljiljana, Vasić Nebojša, Kašanin Grubin Milica, Simonović Predrag, Jovančićević Branimir, Gajica Gordana. "Metals in the sediment and liver of four fish species from Tisza river, Serbia" in 6th Symposium Chemistry and Environmental Protection - EnviroChem, Vršac:Srpsko hemijsko društvo (2013): 232-233
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The solid solutions of rebulite and jankovićite in the phase system Tl2S-As2S3-Sb2S3
Balić-Žunić Tonči, Moëlo Yves, Karanović Ljiljana, Berlepsch Peter.. "The solid solutions of rebulite and jankovićite in the phase system Tl2S-As2S3-Sb2S3" in Macedonian Journal of Chemistry and Chemical Engineering 34 no. 1, Methodius Univ, Fac Technol & Metallurgy, PO Box 560, Ruger Boskovic 16, Skopje, MK-1001 Macedonia :Soc Chemist Technologists Macedonia (2015): 125-132
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Metals in the sediment and liver of four fish species from different trophic levels in Tisza River, Serbia
Štrbac Snežana, Šajnović Aleksandra, Budakov Ljiljana, Vasić Nebojša, Kašanin Grubin Milica, Simonović Predrag, Jovančićević Branimir (2013)Štrbac Snežana, Šajnović Aleksandra, Budakov Ljiljana, Vasić Nebojša, Kašanin Grubin Milica, Simonović Predrag, Jovančićević Branimir. "Metals in the sediment and liver of four fish species from different trophic levels in Tisza River, Serbia" in Chemistry and Ecology, London, UK:Taylor and Francis Ltd, 4 Park Square, Milton Park, Abingdon OX14 4RN, OXON, England (2013): 1-18. https://doi.org/10.1080/02757540.2013.841893
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Development of Open Educational Resources (OER) for Natural Language Processing
In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...... 2. COMPUTATIONAL LINGUISTICS AND NATURAL LANGUAGE PROCESSING Computational linguistics (CL) is a theoretical discipline between linguistics and computer science concerned with understanding and modelling the written and spoken language from a computational aspect.[3]Natural ...
... [3]Natural Language Processing (NLP) develops methods, tools and techniques used often on the basis of theoretical results of CL, computer science, mathematics and others in order to help processing, understanding and generating human language utterances, as well as enabling various forms of ...
... criteria of systematization and gradualism in the teaching process. The third principle of connecting the theory and practice is fulfilled by using the video tutorials. These tutorials are designed to present practical use of processes described in theoretical parts of lessons. Video ...Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević. "Development of Open Educational Resources (OER) for Natural Language Processing" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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Origin of heavy metals, PAH and pesticides in sediments from Tisza River
Štrbac Snežana, Gajica Gordana, Kašanin Grubin Milica, Šajnović Aleksandra, Vasić Nebojša, Jovančićević Branimir (2014)Štrbac Snežana, Gajica Gordana, Kašanin Grubin Milica, Šajnović Aleksandra, Vasić Nebojša, Jovančićević Branimir. "Origin of heavy metals, PAH and pesticides in sediments from Tisza River" in 15th European Meeting on Environmental Chemistry EMEC15, Czech Republic:Brno Universitz of Technology (2014): 68-68
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Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size R
Kremenović Aleksandar, Jančar Boštjan, Ristić Mira, Vučinić Vasić Milica, Rogan Jelena, Pačevski Aleksandar, Antić Bratislav (2012)Kremenović Aleksandar, Jančar Boštjan, Ristić Mira, Vučinić Vasić Milica, Rogan Jelena, Pačevski Aleksandar, Antić Bratislav. "Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size R" in Journal of Physical Chemistry C no. 116 (2012): 4356-4354
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Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water
Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M (2014)Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M. "Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water" in Industrial and Engineering Chemistry Research 53 no. 27, Washington:American Chemical Society (2014): 10841-10848. https://doi.org/10.1021/ie500849r
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Nonequilibrium athermal random-field Ising model on hexagonal lattices
Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević. "Nonequilibrium athermal random-field Ising model on hexagonal lattices" in Physical Review E, American Physical Society (APS) (2021). https://doi.org/10.1103/PhysRevE.103.032147
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Non-Detonating Chemical Mixture for Non-Invasive Methods of Rock Breaking
Within the Innovation developed several different non-detonating chemical mixtures for non-invasive methods of rock breaking. Laboratory and polygon tests gave the satisfactory results and knowledge enough to start the practical experiments in the field. The basis of this innovation is a theoretical assumption that certain chemical mixtures release a large quantity of gases during combustion. If these gases are found in the enclosed space a growing pressure on the walls of the chamber in which combustion takes place will ...Lazar Kričak, Milanka Negovanović, Nikola Simić, Stefan Milanović. "Non-Detonating Chemical Mixture for Non-Invasive Methods of Rock Breaking" in X International Scientific Congress Innovations 2024, Varna, Bulgaria, 24-27. jun 2024, Scientific Technical Union of Mechanical Engineering "Industry 4.0" (2024)
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Cytotoxic activity of tetradentate Schiff Base Copper(II) complexes
Istraživanje kompleksa bakra kao potencijalnih antikancerogenih agenasa nudi ohrabrujuće perspektive u odnosu na komplekse platine (II) računajući na smanjenu toksičnost, novi mehanizam delovanja, različit spektar aktivnosti i perspektivu neunakrsne rezistencije. Kompleksi Šifovih baza bakra(II) koji sadrže tetradentatne ligande acac2en tipa (acac2en (1); tfacac2en (3), acactfacacen (4), acacphacacen (6)) pokazali su važnu antioksidativnu aktivnost, visok potencijal za interakciju sa HSA i DNK, u prethodnim studijama. Zbog toga je bilo interesantno ispitati i uporediti potencijal antikancerogene aktivnosti in vitro, u odnosu ...Nevenka Gligorijević, Aleksandar Mijatović, Sandra Aranđelović, Rada Baošić . "Cytotoxic activity of tetradentate Schiff Base Copper(II) complexes" in The European Association for Cancer Research 2021 , eacr2021.org/sponsorship (2021)
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Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia
Nenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski (2022)General Earth and Planetary Sciences,General Environmental Science,Ecology,Ecology, Evolution, Behavior and SystematicsNenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski. "Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia" in Chemistry and Ecology, Informa UK Limited (2022). https://doi.org/10.1080/02757540.2021.2017903
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Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia “Department of Chemistry, Faculty of Science and Mathematics, Universityof Niš, Fišegradska 33, 18000 Niš, Serbia CooSlHop,MoO, nanopowders were obtained by applying glycine nitrate ...
... · testing nanostructured material CopoHoo,MoOu indicated the possibility of a promising solution in photocatalytic processes towards green chemistry and sustainable development. 1. M. Rosić, A. Zarubica, A. Šaponjic', B. Babić, J. Zagorac, D. Jordanov, B. Matović, Mater. Res. Bull., 98 (2018) ...
... microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquired Cop.Hop , MoO, nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective . method for controlling: the composition and morphology of Cop ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the book of abstracts 7th Conference of The Serbian Society for Ceramic Materials 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja (2023)