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Упит dcterms_subject_txt:surface functional groups

277 items

  • 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)
    ... physical and chemical properties, such as cation exchange capacity (CEC), large surface area, high pore volume, high swelling ability, etc. Intercalation of organic complexes into montmorillonite layers changes surface properties from hydrophilic to hydrophobic. The results presented in this paper ...
    ... infrared spectroscopy. In the spectrum of NaM (Fig. 1a), the absorption band at 3626 cm'! was assigned to stretching vibrations of structural OH groups, while the absorption bands at 3447 cm"! and 1643 cm-! were assigned to stretching: and bending vibrations of water molecules in interlayer space ...
    ... Environmental problems related to the application of herbicides are causing a concern due to their increasing presence in soil, groundwater and surface water. Numerous methods have been developed in order to reduce herbicide mobility and protect natural water resources. The results presented in ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual files, we will outline some of the functional- ities that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can ...

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material

  • Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Đorđe Spasojević (2019)
    Изингов модел, критично понашање, танки системи

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... (SWN) ontology represented in OWL2 format for which we define rules expressed in Semantic Web Rule Language (SWRL) to be used to generate synonymous groups in the SWN ontology on the basis of the indirect synonymy relation. In Section 4 we propose a method for automatic generation of a digital resource ...

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... of geothermal energy is radioactive decay that evolves within the planet some 6730 km under the surface. The Earth's crust is comparatively cold, except for the hot spots where magma is nearer the surface, and grows warmer with the depth. As to the utilization of the planet's heat, the efficiency of ...
    ... in igneous rocks with the highest proportion of silica in the continental crust. Alkali feldspar and quartz also have large distribution; the two groups of minerals and plagioclases are tectosilicates [10]. Silicon occurs in elevated concentrations in geothermal water as well, for example in geysers ...

  • WS4LR - a Worksation for Lexical Resources

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović (2006)
    Lexical Resources, Wordnet, Serbian
    ... established, since it depends on its ending. Figure 2. Retrieval of all verbs ending with sxetati: they all belong to two main inflectional groups: V1 and V74. This module enables the user to modify or delete all the information attached to a lemma, or the lemma itself, as well as to add ...

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... propagation velocities along certain directions are extremely different. In this paper, we investigated total of 50 samples which are divided into two groups of samples, isotropic and anisotropic samples. Longitudinal elastic waves propagation velocities are measured in the three normal directions and ...

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... (accessed 20 Sept. 2020). [16] IPCC, Intergovernmental Panel on Climate Change, Climate change (2014). Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the IPCC, IPCC, Geneva, Switzerland.https://www.ipcc.ch/site/assets/uploads/2018/05/SYR_AR5_FINAL_full ...

  • Analysis of the exhaust emissions inventory from auxiliary mining machines

    Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)
    Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...
    emissions, mining, auxiliary machines

  • Control of substructure construction of railways in the Republic of Serbia

    Dragan Lukić, Dragoslav Rakić, Irena Basarić Ikodinović (2022)
    Контрола збијености природног тла (у ископу) или збијеног у насипу при изградњи саобраћајница представља један од основних облика контроле квалитета доњег строја. Код изградње брзих саобраћајница (аутопутеви и брза железница) приоритет је постизање високог нивоа контроле извршених радова. У циљу онемогућавања диференцијалног слегања (при изградњи насипа), или промене запремине услед допунског збијања материјала, које неминовно доводе до деформација, потребно је извршити оптимално збијање материјала. У оквиру овог рада приказује се техничка регулатива која регулише контролу збијености при изградњи железничке ...
    доњи строј, техничка регулатива, насип, збијеност, контрола
    ... protective layer / Planum of the railway /on top of the transition layer/ railways Rc* Ev2 N/mm2 Degree of unevenness Evd N/mm2 Rc* Ev2 N/mm2 Soil groups by AC classification Evd N/mm2 C o n s Main arterial route 1,03 120 U>15 50 1,00 80 GU,GP,GW, GF,SP,SW all other soil types 40 35 t r u c ...
    ... 010 and SRPS U.B1.047. When building new and improving and renovating existing railways, the installation of a protective layer is mandatory. The surface of the protective layer meets the conditions [3:3-4] flatness of the s the maximum deviation of the elevation from the projected one is ± 10 mm; ...
    ... forms frost protection [3:4-5]. Clay materials and materials that can be compacted and consolidated cannot be installed in the transition layer. The surface of the transition layer meets the conditions: transverse slope of The load-bearing capacity of the transition layer meets the conditions: for the ...

  • 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
    ... 40–95 Bivolica Large Medium Open pit 1 (2–30) At surface Jelenkovac Medium Medium Open pit 1 (4) Up to 40 Mečji do Small Good Open pit 1 (10) Up to 80 Orljak Small Good Open pit 1 (up to 8.5) 10 Beretnica Small Good Open pit 1 (oko 3) At surface Dubrava Small Good Open pit 1 (do 9) Up to 10 Umište ...
    ... deposits, regardless of the area of application. 2. In the Serbian Rulebook [52] on the exploration of kaolin deposits (Table 5), the 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 ...
    ... category A + B category C1 category A + B category Almost 60 years ago, the Russian school provided a simple classification of deposits by groups, without unnecessary details. According to the authors of this paper, the abso- lute advantage of that source [54] are recommended, not strictly prescribed ...

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... Apart from being morphologically annotated, the corpus texts are provided with correspond- ing bibliographic description, information concerning the functional style to which the text belongs, as well as an indicator whether corpus text is written in Serbian or represents a translation from another language ...

  • Petrološke karakteristike dunavskog šljunka (Beograd – Zemun)

    Miloš Mihajlović (2024)
    Dunavski šljunak u okolini Zemuna karakterističan je za obalne rečne naslage formirane dugotrajnim procesima erozije i transporta materijala koje reka Dunav nosi sa različitih područja uzvodno. Ispitivanja šljunka sa lokacije „Gemax” su pokazala je šljunak uglavnom zaobljen, najčešće u rasponu od nekoliko milimetara do nekoliko centimetara u prečniku. Kako Dunav nosi materijal sa velikog sliva, ovaj šljunak sadrži raznovrsne sastojke sa dominacijom kvarca i odlomaka stena visokosilicijskog sastava. Mineraloško-petrografska ispitivanja pokazala su prisustvo klasta različitog sastava, čime je potvrđena ...
    Dunav, šljunak, mineraloško-petrografska ispitivanja, građevinarstvo
    ... as well as in aquaristics due to its neutral chemical nature. The Danube gravel in the Zemun area is particularly valued for its aesthetic and functional qualities. Keywords: Danube, gravel, mineralogical-petrographic studies, construction SADRŽAJ BOA 9/0) b AAAAAA 1 2.2. Pregled ranijih ...

  • Threshold-induced correlations in the Random Field Ising Model

    Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević (2018)
    Multidisciplinary
    ... distributions indicating the randomness of the avalanche triggering process. However, if the correlations are present, then one might expect a di�erent functional form that the waiting time distributions should obey. We study this by applying the �nite detection threshold on a generated signal, thus breaking ...
    ... distributions indicating the randomness of the avalanche triggering process. However, if the correlations are present, then one might expect a different functional form that the waiting time distributions should obey. We study this by applying the finite detection threshold on a generated signal, thus breaking ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... Besides iron-based materials, it is very im- portant to have the presence of small amounts of magnetic minerals from the iron oxide and iron sulphide groups, either organic or inorganic in origin, which cause a diff erence in the magnetic susceptibility of archaeological objects and the environment that ...

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... gether representatives from highly fragmented and di- verse groups of stakeholders. e present White Paper was prepared together with volumes for 29 other lan- guages. e shared technology vision was developed in three sectorial Vision Groups. e META Technology Council was established in order to discuss ...
    ... unsatisfactory results of students onPISA testing, serve as impulses for themodernisation of language instruction and for putting a greater em- phasis on functional literacy and communication skills. is is being reflected both in the current educational reform (goals of language instruction, standards to be ...
    ... shortage of courses in Serbian that would systemat- ically prepare future experts for successful professional communication and develop appropriate functional lit- eracy. e application of language technology methods could certainly contribute to the modernisation of in- struction, for example, by way of ...