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Упит dcterms_subject_txt:in situ

366 items

  • A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić (2012)
    This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...
    multilingual digital libraries, query expansion, TMX
    ... the article in .pdf format (residing on the official site of the INFOtheca journal) as well as the entire aligned parallel text of the article in .html format. More powerful is the full-text search (Figure 5). The user initiates this search by submitting a keyword in English or in Serbian and ...
    ... (one or more sentences or segments) in one of the TMX document languages, where the text in the first TUV is usually in the source language, and the texts in the remaining TUVs are in one or more target languages. Although the order of languages is the same in each TU, there is a TUV attribute ...
    ... translator’s aid, which could be of assistance both in reviewing terminology used in context and in refining the multilingual resources used within the system. Keywords: multilingual digital libraries, query expansion, TMX 1. Motivation In this paper we outline the main features of Bibliša ...

  • The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

    Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan (2008)
    In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...
    LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval
    ... fact that the adjective form dinarsku is in the accusative case that is required by the preposition na. 7. In order to test our system we have used a log file of one of Serbian professional journals that deals with economic issues. The journal’s web site is supported by a search engine that ...
    ... do not have a corresponding entry in our e-dictionaries) do not inflect. It would yield correct examples in some cases (for instance, in šper ploče ‘plywood’ šper does not inflect and it is not in our e-dictionaries since it is not a valid Serbian word). In some other situations the prediction ...
    ... unrelated to the original keyword, thus making any stemmer useless. 3. In some cases the user may wish to perform a bilingual search in order to find documents on the chosen subject in two languages, e.g. English and Serbian. In the case of garlic the appropriate query should be composed of the ...

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... po- sition of starting point in traverse - Standard deviation of the start- ing grid bearing ( σ v = ± 8ʺ); as well as the errors occurring during measuring, i.e. during setting out of traverse points in form of errors in setting out direction angles and error in setting out lengths of traverse ...
    ... tra- verse point in the direction of x-axis; i E σ - standard deviation of tra- verse point in the direction of y-axis; 1i N σ − - standard deviation of the previous traverse point in the direction of x-axis; 1i E σ − - standard deviation of the previous traverse point in the direction ...
    ... of bauxite in the deposit of "Podbracan" 4.1. Mining method The applied mining method, named the sublevel caving excavation method in crosswise direction, was chosen based on the relevant mining- geological parameters, mining condi- tions and other technical-technological factors in�uencing the ...

  • Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study

    Ksenija Micić, Miloš Marjanović, Biljana Abolmasov (2024)
    Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...
    tečenje drobine, Flow-R, procena podložnosti, empirijski model

  • Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)

    Liubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić (2020)
    Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, Serbia

  • Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)

    Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick (2024)
    Triassic, Carnica event, clay mineralogy, conodont biostratigraphy, Neo-Tethys

  • Еоценска фауна југозападног дела Сирт басена (Либија)

    Љупко Рундић, Мери Ганић (2020)
    Еоцен, крупни мекушци, нумулити, ЈЗ Сирт басен, Либија

  • Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes

    Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)
    Earth-Surface Processes

  • Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery

    Maja Milošević, Biljana Đorđević, Mihovil Logar (2020)
    калцит, сирова глина, традиционална керамика, Злакуса
    ... archaeological site near Mošnje (Slovenia). Applied Clay Science, 57, 39-48. LCPC (1987) Limites d'Atterberg, limite de liquiditć, limite de plasticite, method' deessai LPC, n*19. Paris, France, Publication LCPC, 26 pp. McManus J. (1988) Grain size distribution and interpretation. Pp. 63–85 in: Techniques ...
    ... samples are shown in . Kaolinite occurs as lamel- lar hexagonal flakes with broken edges, while montmorillonite particles mainly form larger crumbly aggregates and dense plates with undefined edges. Titanium minerals in the form of rutile needles (~20 um) are evident in the samples, in agreement with ...
    ... Bodenbeschaffenheit - Bestimmung der Partikelgr Jlenverteilung in Mineralb den. Beuth. Berlin, Germany, Deutsches Institut far Normung. Djordjević B. (2013) Pottery making in Zlakusa. First ethnoarchaeological research project in Serbia. P. 49 in: Conference Proceedings, Rome Italy, l3th-I4th May 2010 ...

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series

    Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)
    Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...
    deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija
    ... including duration time and costs of reparation with respect to forecasted deforma- tions. Future research will be focused on carrying an in situ measuring of the deformations in an underground mine to quantify the quality of the method. Furthermore, the focus will be on the making of a 3-D model of gate road ...
    ... much longer than is the case with the application of modern mechanized methods. In such a production environment, the maintenance of the gate road stability is almost impossible and is per- formed in an unsystematic way. In order to improve such a difficult situation, we use a laser scanner to obtain high ...
    ... much longer than is the case with the application of modern mechanized methods. In such a production environment, the maintenance of the gate road stability is almost impossible and is per- formed in an unsystematic way. In order to improve such a difficult situation, we use a laser scanner to obtain high ...

  • Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling

    Branislav Petrović, Veljko Marinović, Zoran Stevanović (2023)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije

    Jana S. Stojković (2013-09-25)
    Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...
    esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije
    ... laboratorijskih analiza, tako i prilikom sistematizacije i obrade podataka. Na rezultate ispitivanja fizičko-hemijskih karakteristika mineralnih voda (in situ merenja na sirovim uzorcima, skraćene hemijske analize i određivanje sadržaja mikroelemenata) primenjena je multivarijantna statistička analiza ...
    ... cluster analysis and R-mode cluster analysis) has been applied on the research results of physical and chemical characteristics of mineral waters (in situ measurements on raw samples, short chemical analyses and analyses of the content of microelements) for better understanding of gathered information ...
    ... hidrohemiju Rudarsko-geološkog fakulteta u Beogradu. Uzorci su filtrirani na mestu uzorkovanja, a nestabilni fizičko-hemijski parametri mereni su in situ, na sirovim uzorcima. Potenciometrijskom metodom određivan je pH indeks, konduktometrijskom metodom – specifična elektroprovodljivost (µS/cm), a ...

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... list of aligned en-sr terms from the web site of the Serbian Institute for Standardization. 3. Production The final parallel list of translation equivalents compiled from all of the abovementioned resources had 151,641 different en-sr term pairs, as summarized in Table 1. The first two columns show the ...
    ... given in LiteralsEn, LiteralsSr. In the column Mark the expert marks if the offered literal is acceptable. The next column Frek shows the frequency of the candidate pair in the final list of parallel terms, whereas the resources in which the term pair was found are displayed in column Sources. In general ...
    ... literals in the 20,221 aligned synsets of PWN and SerWN, and found out that 11,091 synsets (55%) had the same number of literals, that the number of literals in 6,107 synsets (30%) differed by 1, in 1,834 synsets (9%) by 2, in 682 for (3%) by 3 literals, whereas an even greater difference in the number ...

  • A hundred years of Milutin Milanković's climate change theory - geological implications

    Dejan Radivojević (2020)
    Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...
    циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт
    ... foraminiferal record across the initial Eocene Thermal Maximum, Southern ocean Site 690. GSA Spec. Paper, 369: 319–332. THoMAS, E. 2007. Cenozoic mass extinction in the deep sea; what disturbs the largest habitat on Earth? In: MoNECHI, S., CoCCIoNI, R. & RAMPINo, M. (Eds.). large Ecosystem Perturbations: ...
    ... Main periodicities are indicated in red. Fig. 3. Example of Milanković’s cycles at geological section in Punta di Maiata, Sicily (HilGEn et al., 2006). As an example, the recent research on the Trias- sic Chinle Formation in Petrified Forest National Park in Arizona confirms the existence of a ...
    ... as well-paid innovator. In 1909 he received an offer from the University of Belgrade to work as an Associate Professor at the Department of Applied Mathematics. He moved to Kingdom of Serbia in 1910 and became its citizen, even though his salary was ten times lower than in vienna. To gain additional ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... the TEM sample preparation over the site-specific ocused ion beam (FIB) method to avoid possible Ga implantation during, the sample preparation procedure. The electron-transparent samples were mounted in a low-background dual tilt Be holder and analysed in the transmission electron microscope ...
    ... containing FeAsS were powdered in an agate mortar. Measurements were conducted on Smartlab X-ray Diffractometer (Rigaku Co., Tokyo, Japan) in 06–0 geometry (the sample in horizontal position) in parafocusing Bragg-Brentano geometry using a D/teX Ultra 250 strip detector in 1D standard mode with CuKau ...
    ... are summarised in Table 2. Using, calibration standards, we significantly improved the precision of SAED, and we obtained a good match to the values reported in the literature. The values summarised in Table 2 are also in good agreement with the measured XRPD data summarised in Table 1. Crystals ...

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... mk similar data or the same datasets but in different domains to generate predictions for data-driven classification and regression problems (Cracknell and Reading 2014). In situ- ations involving the prediction of spatially dispersed catego- ries in extremely complex processes, these algorithms ...
    ... data into data sets for specific pur- poses in ML modelling (in this case displaying the different results with different class balances) and it is presented in the results section. Data sources A predictive map was generated for ophiolites in the study area by utilizing three distinct data ...
    ... The primary objective as to assess whether a reduction in the quantity of sampling data points, coupled with an increase in the proportion of ophiolites and non-ophiolites in the training dataset, would yield improved predictions in the testing dataset. It is worth noting that the testing ...

  • Povezivanje i detaljno snimanje donjeg potkopa rudnika ,,Crveni Breg“ na Avali

    Jovan Obradović (2024)
    Cilj ovog Završnog rada na temu „Povezivanje i detaljno snimanje donjeg potkopa rudnika ,,Crveni Breg“ na Avali” jeste dobijanje koordinata tačaka jamskog poligonskog vlaka, kao i prikaz samog rudnika na osnovu detaljnog snimanja jame, kao poprečnih profila podzemne rudničke prostorije. U datom radu biće predstavljene metode koje su primenjene prilikom snimanja, kao i rezultati samih merenja i sva potrebna računanja da bi se došlo do potrebnih koordinata.Merenja za završni rad obavljena su tokom terenske nastave održane u junu 2024. godine ...
    Rudarska merenja, povezivanje, plan jame, poprečni profil
    ... Prednosti ove metode su (Ackermann i Hunt, 2004): – minimalni uticaj tokom merenja na radne operacije; – rezultati kontrole poprečnih preseka in-situ; – precizno određivanje otkopanih masa; -– objektivna registracija upotrebljenih materijala; – mogućnost skeniranja brzinom i do 130 m na sat; ...
    ... је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Univerzitet u Beogradu Rudarsko-geološki ...

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... graničnog sadržaja ..........................................................................135 4.2.1. Određivanje odnosa sadržaja metala u rudi i in-situ tonaže (mase) rude .............................................................................................................. ...
    ... graničnog sadržaja u ležištu .......................................................... 129 Slika 4.2. Odnos između geoloških graničnih sadržaja, in-situ tonaže i prosečnog sadržaja .................................................................................................. 132 Slika 4 ...
    ... graničnog sadržaja, i na kraju utvrđivanje rudnih rezervi koje se mogu eksploatisati. Slika 4.2. Odnos između geoloških graničnih sadržaja, in-situ tonaže i prosečnog sadržaja Planirani granični sadržaj (engl. Planning Cutoff Grade) je najniži sadržaj metala u rudi za koji je NPV jednaka ...

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... Ratios of Silicate Reference Glasses Determined In Situ by Femtosecond LA-MC-ICP-MS and by Solution Nebulisation MC-ICP-MS. Geostandards and Geoanalytical Research, 38(3), 311–328. Ohmoto, H., (2003): Nonredox transformations of magnetite-hematite in hydrothermal systems. Economic Geology, 98(1), ...
    ... equilibria: assemblages with fayalitic olivine. American Mineralogist, 73, 727-740. Fujino, K., (1974): Cation distribution and local variation of site symmetry in solid solution series, Fe3O4-Fe2TiO4. Mineralogical Journal, 7, 472–488. Ghiorso, M. S., & Evans, B. W., (2008): Thermodynamics of Rhombohedral ...
    ... ferrian ilmenite in hornblende andesites of I volcanic phase as well as magnetite with notable Cr concentration in zone of Zlot magnetic anomaly. Examination of samples from porphyry system drill holes of Bor zone reveals different types of (under hydrothermal condition) magnetite/hematite in different porphyry ...