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Упит dcterms_subject_txt:space group

367 items

  • Using autonomous GNSS senzors in monitoring of slow moving landslides-a case study

    Abolmasov Biljana, Milenković Svetozar, Pejić Marko, Stepanović Goran, Gospavić Zagorka (2011)

  • The Pannonian ostracod fauna from the Zalanyi’s section of Obrenovac (Serbia)

    Marco Spadi, Elsa Gliozzi ,Ljupko Rundić (2019)

  • Jointed rock mass characterization using field and point-cloud data

    Marjanović Miloš, Pejić Marko, Đurić Uroš, Krušić Jelka, Abolmasov Biljana (2018)

  • Assesment of geological and geotechnical conditions for rebuilding Avala`s television tower

    Ćorić Slobodan, Rakić Dragoslav, Hadži-Niković Gordana, Janković Tomislav, Filipović Vladimir, Marjanović Biljana (2013)

  • Basic kinematic analysis of rock slope using terrestrial 3D laser scanning on the M-22 highroad pilot site

    Marjanović Miloš, Abolmasov Biljana, Đurić Uroš, Zečević Snežana, Šušić Vladimir (2013)

  • Unravelling of continued magmatic activity along the Serbo-Macedonian massif since the Precambrian (south Serbia, southwest Bulgaria and Macedonia)

    Antić Milorad, Kounov Alexandre, Trivić Branislav, Peytcheva Irena, Von Quadt Albrecht, Gerdjikov Ianko, Serafimovski Todor, Tasev Goran (2011)

  • Uniaxial compressive strength test before and after standard fire test on rock mass

    Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)
    ... sandstone. Samples were brought form Laz tunnel and were divided into two groups of six samples. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of samples consists of 6 samples exposed to standard fire test according to SRPS EN 1363-1, with the ...
    ... light 2.2. Material sampling Two groups of 6 samples are tested according to SRPS EN 1926. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of specimens consists of 6 samples exposed to standard fire test with intention to test uniaxial compressive ...
    ... sandstone. Samples were brought form Laz tunnel and were divided into two groups of six samples. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of samples consists of 6 samples exposed to standard fire test according to SRPS EN 1363-1, with the ...

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... representing the semantic network of words in Serbian. With- in this group of resources, the multilingual onto- logical dictionary of proper names Prolex should also be mentioned. Besides different types of e-dictionaries, the Group is engaged in developing other resourc- es, such as the e-corpus of ...
    ... synchronized use of vari- ous resources and is already being successfully used for various tasks within the Group. Based on this tool, a web application is now being de- veloped in the Group, under the “working” ac- ronym WS4QE (Workstation for Query Expan- sion) with the aim of enabling the development ...
    ... ist. In principle, these dictionaries are following a similar format, but additionally allow lema and oblik to contain non-alphabetic characters: space, dash, apostrophe etc. Leaving the details of these dictionaries aside, we shall only stress that the generation of morphological forms of compound ...

  • Maceralni sastav i rang uglja Ibarskog basena

    Željana Novković, Nevena Andrić -Tomašević, Vladimir Simić, Dragana Životić (2022)
    Donjemiocenski ugljonosni Ibarski basen se nalazi u južnoj Srbiji. Intramontanski ektenzivni basen, izdužen u pravcu severozapad-jugoistok ispunjen je slatkovodnim sedimentima koji su formirani kao deo Dinarskog neogenog jezerskog sistema. Paleoreljef basena izgrađen je od paleozojskih amfibolskih škriljaca, sericit-hloritskih škriljaca, krečnjaka, mermera i metabazičnih stena, mezozojskih peščara, laporca, laporovitih krečnjaka, krečnjaka, dolomita, ofiolita i oligo-/miocenskih magmatskih stena. Tercijarne magmatske stene izgrađene su od oligocenskih dacito-andezita i neogenih kvarctlatita/riodacita i piroklastičnih stena. Miocenski sedimenti izgrađeni su od aluvijalnih breča, konglomerata, peščara, ...
    ugalj, macerali, refleksija vitrinita, Ibarski basen

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... were developed within the University of Belgrade Human Language Technology Group. The tools we describe are WS4LR, a software tool that has been devel- oped and used for solving different tasks within the Group, and a web application named WS4QE, accompanied by sever- al web services, that ...
    ... that is, lexical and textual re- sources, are being developed within the Human Lan- guage Technology Group at the University of Belgrade (fur- ther referred to as the HLT Group), which gathers re- searchers in the field of Computer Linguistics from differ- ent departments. The most ...
    ... ng the semantic network of words in Serbian. Within this group of resources, the multilingual ontological dictionary of proper names Prolex should also be men- tioned. V Besides these different types of dictionaries, the Group is engaged in developing other resources, such as the e-corpus ...

  • A new copper(II) arsenate, Na2Cu3(AsO3OH)4·4H2O containing discrete [Cu3O12]18− units: Synthesis, crystal structure and magnetic properties

    Tamara Đorđević, Ljiljana Karanović, Zvonko Jagličić (2018)
    Single crystals of the new disodium tricopper(II) tetrakis(hydrogenarsenate(V)) tetrahydrate, Na2Cu3(AsO3OH)4·4H2O were grown under hydrothermal conditions. The compound was characterized by room-temperature single-crystal X-ray diffraction, SEM-EDS analysis, Raman spectroscopy and magnetic susceptibility measurements. Na2Cu3(AsO3OH)4·4H2O represents a new layered structure-type [space group P21/c, a = 8.7089(17), b = 9.7452(19), c = 9.3353(19) Å, β = 92.63(3)°, V = 791.4(3) Å3, Z = 4]. The layers are normal to [100] and are composed of the isolated Cu3O12 units interconnected by AsO3OH coordination ...
    Na2Cu3(AsO3OH)4•4H2O, хидротермална синтеза, кристална структура, хидрирани хидрокси-арсенати, магнетна својства

  • 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
    ... tripotassium europium disilicate, K3EuSi2O7, has been synthesized and characterized by single-crystal X-ray diffraction. It crystallizes in the space group P63/mcm. In the crystal structure of the title compound, one part of the Eu cations are in a slightly distorted octahedral coordination and the ...
    ... focused on the synthesis of new potassium-REE silicates, single crystals of K3EuSi2O7 were obtained. K3EuSi2O7 crystallizes in the hexagonal space group P63/mcm (No. 193) and is isostructural with K3NdSi2O7, 12 K3REESi2O7 (REE = Gd–Yb),13 K3YSi2O7, 6 K3SmSi2O7, 7 K3ErSi2O7. 15 The report- ed compound ...
    ... Bondar and co-authors11 stated the existence of this phase, however, they reported only unit cell parameters (a = 9.98(1), c = 14.44(2) Å), space group (P63/mcm), chemical composition and described the morphology of crystals. Myers16 outlined the successful synthesis of K3REESi2O7 (REE = Eu, ...

  • Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia

    Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović (2014)

  • A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra

    Tamara Đorđević, Ljiljana Karanović (2010)
    A new monoclinic polymorph of Ba(AsO3OH) was synthesized under hydrothermal conditions. It represents a previously unknown structure type. Its crystal structure was determined from a racemic twin using single-crystal X-ray diffraction data collected at 120 and 293 K [space group P21, a=7.2149(14)/7.2370(2), b=7.7028(15)/7.7133(2), c=21.7385(43)/21.8079(5) Å, β=95.95(3)/96.073(1)1, V=1201.6(4)/1210.51(5) Å3, Z=12]. The crystal structure of P21-Ba(AsO3OH) has a layered character and is built up of four types of regularly alternating layers parallel to (0 0 1). Every AsO3OH tetrahedron is chelating to two Ba atoms and ...
    Ba(AsO3OH), хидротермална синтеза, структурна анализа монокристала, Раманска спектроскопија, инфрацрвена спектроскопија, водоничне везе, хидрогенарсенати земноалкалних метала

  • WS4LR - a Worksation for Lexical Resources

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović (2006)
    Lexical Resources, Wordnet, Serbian
    ... developed within the Human Language Technology Group at the Faculty of Mathematics, University of Belgrade. The tool is aimed at manipulating heterogeneous lexical resources, and the need for such a tool came from the large volume of resources the Group has developed in the course of many years and ...
    ... computer under Windows 2000/XP/2003 operating system with at least 256MB of internal memory. 1 Introduction The Human Language Technology group at the Faculty of Mathematics has been developing various lexical resources over quite a long period, reaching a considerable volume to date. Given ...
    ... naturally been conceived within different projects and frameworks, both from the conceptual and the technological point of view. Although the HLT group made every reasonable effort to keep the ever growing pool of resources as coherent and standardized as possible, a certain level of heterogeneity ...

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... coefficient values it can be seen that the samples with the cement belong to the very strong correlation group, and the samples that contain the lime belong to the strong correlation group. Figure 8 The dependence of the modulus of elasticity and the uniaxial compressive strength after 7 ...
    ... calculated coefficient values it is obtained that the samples with the lime belong to the very strong correlation group, and with the cement belong to the very low correlation group, and the coefficients differ by 50 %. Figure 10 The dependence of the modulus of elasticity and the uniaxial ...
    ... the calculated coefficient values it is obtained that the samples with the lime belong to the very strong correlation group, and with the cement belong to the lower correlation group, and the coefficients differ by 24 %. Figure 11 The dependence of the indirect tensile strength and the uniaxial ...

  • Towards Automatic Definition Extraction for Serbian

    Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić (2021)
    U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...
    ... models covering definitions from all three groups to some extent: 7 for the definitions from the first group, one for the definitions from the second group and 13 for the definitions from the third group. When developing these models by means of local grammars with FSTs we tend to capture all types of ...
    ... the most numerous group of terrestrial vertebrates, ...) Птице су једина основна група данашњих кичмењака која има… (Birds are the only basic/core group of today's vertebrates that has…) Птице су најмлађа основна група копнених кичмењака. (Birds are the youngest basic/core group of terrestrial vertebrates ...
    ... about the lexeme belonging to a wider lexical-semantic group, and a lower-ranking seme, which carries information about individual characteristics of a lexeme, based on which one lexeme differs from another in the same lexical-semantic group. The basic types of lexicographic definition are descriptive ...

  • 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
    ... stored inside the database. Column GID (group identifier) is combined identifier of a music group (first digit – 1 – indicates that group is from Serbia, second digit – 1 – indicates it is from Belgrade and last two are unique identifiers so – 01 – first group from Belgrade, Disciplina kičme). Other ...
    ... Dordević – Bora Čorba. With time, Kragujevac became synonym for the group Smak, one of the oldest and most significant rock bands in these terri- tories. Other bands which originated in Kragujevac also include band Osvajači and Punk group KBO!. One of the most important representatives of Novi Sad is Dorde ...
    ... roll groups were established in Čačak, and most of them originated from the Cultural Artistic Society Abrašević. The first and the most popular group in Čačak in the 1960s was Bele vǐsnje, and the following new groups appeared after them: Zvečarke, Crne mambe, Srebrne senke, Dečaci sa Morave ...

  • An update on the mineral-like Sr-containing transition metal arsenates

    Tamara Đorđević, Ljiljana Karanović (2021)
    We report on the crystal structures of three novel synthetic SrM-arsenates (M = Ni and Fe3+), isostructural or structurally related to the minerals from tsumcorite, carminite and brackebuschite groups. They were synthesised under mild hydrothermal conditions and further characterised using single-crystal X-ray diffraction (SXRD), scanning electron microscopy with energy dispersive spectroscopy (SEMEDS) and Raman spectroscopy. SXRD and SEM-EDS yielded formulae: (I) SrNi2(AsO4)2·2H2O, (II) Sr1.4Fe3+ 1.6(AsO4)2(OH)1.6 and (III) SrFe3+(AsO4)(AsO3OH). All three structures are built up of slightly distorted MO6 octahedra ...
    арсенати метала, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманова спектроскопија, релевантна једињења у животној средини, арсенeochemistry and Petrology

  • Water in the Alluaudite Type-Compounds: Synthesis, Crystal Structure and Magnetic Properties of Co3(AsO4)0.5+x(HAsO4)2−x(H2AsO4)0.5+x[(H,□)0.5(H2O,H3O)0.5]2x+

    Tamara Đorđević, Ljiljana Karanović, Marko Jagodič, Zvonko Jagličić (2021)
    In this study, a new cobalt arsenate belonging to the alluaudite supergroup compounds with the general formula of Co3(AsO4)0.5+x(HAsO4)2−x(H2AsO4)0.5+x[(H, )0.5(H2O,H3O)0.5]2x+ (denoted as CoAsAllu) was synthesized under hydrothermal conditions. Its crystal structure was determined by a room-temperature single-crystal X-ray diffraction analysis: space group C2/c, a = 11.6978(8), b = 12.5713(7), c = 6.7705(5) Å, b = 113.255(5)◦, V = 914.76(11) Å3, Z = 2 for As6H8Co6O25. It represents a new member of alluaudite-like protonated arsenates and the first alluaudite-like phase ...
    супергрупа алуаудита, арсенати прелазних метала, хидротермална синтеза, кристална структура, хидратисани хидрокси-арсенати, стехиометрија, магнетна својства