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Упит dcterms_subject_txt:crystal structure

448 items

  • Analysis and visualization of geophysical well-logging data from closely spaced boreholes

    Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov (2024)
    Geophysical logging measurements for determining the condition of the rock mass on the dam profile and locating the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carried out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis ...
    well-logging in karst, water loss, data correlation, data fusion
    ... INTRODUCTION The application of modern geophysical surveys in karst terrains is of particular importance when investigating the geological structure of the zone of the dams, especially taking into account the complex specificities of karst in terms of surface and underground water circulation ...
    ... Congress of Geologists of the Republic of North Macedonia faults dominate, along which erosion cuts the riverbed (Vasić et al., 2020) Geological structure of the research area is very complex, primarily in terms of rupture structures that appear to a large extent in such a typical karst environment ...

  • The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin

    Filip Anđelković, Dejan Radivojević (2019)
    gornji miocen, litostratigrafske jedinice, formacije, Panonski basen
    ... pp 619-632 7. Mațenco, L., & Radivojević, D., (2012). On the formation and evolution of the Pannonian Basin: constraints derived from the structure of the junction area between the Carpathians and the Dinarides. Tectonics. 31, TC6007 8. Radivojević, D., (2019). Pannonian Basin, Pannonian Basin ...

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... ranka@rgf.bg.ac.yu Duško Vitas, vitas@matf.bg.ac.yu Cvetana Krstev, cvetena@matf.bg.ac.yu 1. Introduction In this paper we describe the main structure and possible applications of one integrated environment for linguistic research that contains NooJ as one of its main modules. This environment ...
    ... simultaneously. Exploiting the synergy of various resources, this tool proved very useful in many HLT tasks, including wordnet development. 2.2. Structure WS4LR is made up of several modules which perform the following main functions (Figure 1): - management of a system of electronic dictionaries ...

  • Frequency and Length of Syllables in Serbian

    Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)
    Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.
    frekvencije slogova, dužina slogova, srpski jezik
    ... language unit which „has become a stepchild in linguistic description“ (Haugen, 1956, p. 213) because of the lack of its precise definition8 (cf. also Crystal, 2008, pp. 467-468; 1 Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja ...
    ... Bratislava, Slovakia e-mail: livia.lessova@fmph.uniba.sk 8 It is quite common that there are several definitions of a linguistic unit (cf. e.g. Crystal, 2008, pp. 521-523 for word, p. 367 for phrase, and pp. 432-433 for sentence). However, syllable seems to be more problematic than other units – ...
    ... Adaptations of the Cyrillic alphabet. In: Daniels, P.T., Bright, W. (eds.), The World’s Writing Systems: 700-726. Oxford: Oxford University Press. Crystal, D. (2008). A Dictionary of Linguistics and Phonetics. Oxford: Blackwell. Eddington, D., Treiman, R., Elzinga, D. (2013a). Syllabification of American ...

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems

    Dejan Ćebić, Nebojša M. Ralević (2021)
    нелинеарне једначине, поступци засновани на срединама, вишеструки корени,

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... methodology can be applied on the levels of city, region, or a state, taking into account specifics of heat and electricity generation and the structure of pri- mary energy supply. In addition, the methodology provides a possibility for the estimation of the technical potential of wastewater heat ...
    ... heating companies 2018) (PU Beogradskeelektrane 2018). Energy consumption in district heating systems in Serbia in 2017 was 26,322.8 TJ with the structure presented in Fig. 4. The auxiliary electricity consumption was 9321 TJ (Statistical Office of the Republic of Serbia 2017). The fuel with the highest ...
    ... of the newest and most contemporary wastewater plant (in the city of Šabac) was selected in this paper, for the evaluation of sewage Fig. 4 Structure of fuel consumption in district heating systems in Serbia in 2017 Table 1 Average values of the key performance indicators of the district heating ...

  • 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)
    ... 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.Hoo,, MoOu is presented in this ...
    ... Q-band measurement indicates that this spectrum is a superimposition of the spectra of VO ions located in two different positions in the KGa-l structure). A sharp intense peak near g = 2.002 is assigned to defects that are always present in the clays [3]. P-2 SYNTHESIS, CHARACTERIZATION AND ...

  • Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2024)

  • 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
    ... W. X-ray structure refinements of tremolite at 140 and 295 K: Crystal chemistry and petrologic implications. Am. Mineral. 1996, 81, 1117–1125. [CrossRef] Gatta, D.G.; Merlini, M.; Valdrč, G.; Liermann, H.-P.; Nenert, G.; Rothkirch, A.; Kahlenberg, V.; Pavese, A. On the crystal structure and com ...
    ... when their structures are degraded by firing, in the kiln. Inosilicates are built with [SiOx]"- entities forming, long chains. The amphibole structure is composed of the [SiOi(OH)]" anion (i.e., four of the above entities, but also hydroxylated). The Raman spectrum of these phases, characterized ...
    ... (Figure 7 [32])). The broadening indicates a distribution of Si-O-Si bond lengths that could have arisen from the degradation of the pristine structure upon heating. The large number of phases identified by XRPD and the variety of Raman spectra observed are consistent with a firing taking place ...

  • 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
    ... Robertson et al. 1991; Ricou 1994; Schmid et al. 2008; Stampfli and Hochard 2009). Therefore, to reveal the tectonic evolution of these intra-Alpine crystal- line units, their complex structural patterns need to be stud- led in detail together with determination of age of their pro- toliths and timing ...
    ... (Stampfli et al. 2013; Antić et al. 2015b). Variscan age of the peak metamorphism and high-strain deformation has been reported for a number of crystal- line units in the Carpatho-Balkanide orogen (Dimitrijević 1958; Dallmeyer et al. 1998; Ilic et al. 2005; Carrigan et al. 2005; Karamata 2006) ...
    ... Bulgaria. Geol Balc 23:46 Macheva L, Titorenkova R, Zidarov N (2005) Kyanite-staurolite-gar- net orthoschists. Central Laboratory of Mineralogy and Crystal- lography “Acad. Ivan Kostov, Sofia Malešević M, Vukanović M, Obradinović Z et al (1980) Tumač za list Kuršumlija. Savezni Geološki Zavod, Belgrade ...

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion
    ... grammatical categories. It should be noted that MWUs sharing the same inflectional class (or super- class) do not necessarily have the same syntactic structure and vice versa. For instance, film u boji ‘color movie’ and bolest ludih krava ‘mad cows disease’ share the same class nc n4x, although the first ...
    ... was offered or none of the solutions was classified as a) or b). In either case, the reason was that the strategy failed to cover a particular MWU structure (in 52 cases, or 20% of all failures) or a MWU com- ponent that inflects was not in the dictionary of simple words (in 255 cases, or 80% of all failures) ...
    ... Google. Again, Unitex and Multiflex are used for inflection. However, WS4QE goes one step further: for free phrases supplied as key-words having a structure covered by a MWU inflectional class, the tool uses our strategy and acts upon the first offered solution, which is the correct one in most cases. ...

  • Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)

    Nikita Bragin, Nevenka Đerić (2020)
    Radiolaria, Dinarides, Jurassic, stratigraphy, Serbia
    ... for the reconstruction of tectonic motion and the arrangement of palaeo­oceanic basins and continental blocks. Due to the highly complicated structure of this territory, each palaeontological da­ tum from radiolarite deposits and from carbonate clasts of the intercalated turbidites is highly important ...
    ... the Meso- zoic radiolarites. Mesozoic radiolarian biochronology is essential for the understanding of the palaeogeography and overall tectonic structure of the Dinarides. There are numerous data on siliceous sedimentary rocks associated with the ophiolite belts in the Dina­ rides, Albanides and ...
    ... area is situated in SW Serbia, in Ljubiš Village on the eastern flanks of Mt. Zlatibor. The wider area is characterized by a rather complicated structure. According to SCHMID et al. (2008), it comprises the Adria-derived Drina-Ivanjica (DIU) and East Bosnian-Durmitor Units (EBDU), with the West Vardar ...

  • Wordnet Development Using a Multifunctional Tool

    Ivan Obradović, Ranka Stanković (2007)
    In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...
    Wordnet development, language resource integration, HLT tools
    ... questions have often been raised: are concepts linguistically independent or not, are the lexicalization patterns for concepts universal, is the structure of PWN valid for other languages as well, is the set of semantic relations built in PWN sufficient for all languages [15]. Although the work ...
    ... and add relations in the wordnets and to formulate queries. This tool also makes it possible to visualize the semantic relations as a tree- structure that can directly be edited. Trees and sub-trees can be expanded, shrunk, and stored as distinct sets of synsets, which can then be separately ...
    ... simultaneously. Exploiting the synergy of various resources, this tool proved very useful in many HLT tasks, including wordnet development. 3.2 Structure WS4LR is composed of several modules which perform the following main functions (Figure 1): - development and refinement of wordnets, where ...

  • Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics

    Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar (2019)
    keramika, glina, Dobrodo, mineralogija, sirovina, Srbija

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... Disaster Management College Shiho Asano, Forestry and Forest Products Research Institute Has Baator, Asia Air Survey Co., Ltd. Organizational Structure of the Fifth World Landslide Forum ix Hiromu Daimaru, Forestry and Forest Products Research Institute Khang Dang, International Consortium on ...
    ... Hiroshi Yagi, Yamagata University Hiromitsu Yamagishi, Shin Engineering Consultants Co., Ltd. Maki Yano, OSASI Technos Inc. x Organizational Structure of the Fifth World Landslide Forum Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181 Biljana Abolmasov, Uroš ...
    ... Monitoring Activities on Landslide … 227 UAV Imaging and Mapping Using of small Unmanned Aerial Vechiles (UAV) systems and its implementation in Structure from Motion (SfM) photogrammetry is found very practical for landslide surface modeling and monitoring. Many advantages of UAV-based remote sensing ...

  • Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate

    Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)
    Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...
    Underplating, akrecija kore, Magnetske anomalije, Jadranska ploča

  • Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics

    Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić (2024)
    Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...
    Lecki vulkanski kompleks, andeyit, kalcedon, kvarc, opal-CT, mikrostruktura, organska materija

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... remediation and recultivation. The geodatabase model of abandoned mines includes the name, geolocation, administrative affiliation, size, geological structure, history, status and condition of recultivation, implemented measures for remediation and recultivation with supporting multimedia records (photographs) ...
    ... Vrdnik, Serbia 2 The next section presents the methodological approach to development of the geodatabase, and a description of logical structure and physical database implementation. Section 3 outlines the development environment and usage of the system components, including the handling ...

  • 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