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Упит dcterms_subject_txt:variability of coal quality

2845 items

  • Развој геолошког терминолошког речника ГеолИССТерм

    Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić (2011)
    ... . Thus, the expansion of the range of terms included in geolISS will continue to be a fundamentally and operationally important task, aimed primarily at a clearer determination of the geologic content and improving the quality of geologic data. Immediate and end users of the information system ...
    ... carried out by the Faculty of mining and geology, University of Belgrade, funded by the ministry of the environment and Spatial Planning of the republic of Serbia. A short history of geolISSTerm and an overview of the structure and the way of arranging terms, in view of the terminological resources and ...
    ... on of the geologic Information System of Serbia (geolISS) in mid- 2006 marked the beginning of development of the geologic terminology and nomenclature. The main aim of the development of this electronic resource was the creation of a standard dictionary of geologic terms for the purpose of providing ...

  • Using Lexical Resources for Irony and Sarcasm Classification

    Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković (2017)
    The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...
    ... 281 0.198 0.232 0.724 of antonymous pairs, the real meaning of a sarcastic tweet, like in the following example: Sreća pa zimus neće biti uglja, gasa, struje i ogreva jer sa ovim smanjenjem ne bi ni moglo da se plati! (sreća - žalost) ‘Fortunately this winter there will be no coal, gas, electricity or ...
    ... were F1 = 73% for detection of ironic examples and F1 = 93% for detection of non-ironic examples of comparisons. 3 CORPUS OF IRONY One of the first challenges one encounters while trying to solve tasks of automatic recognition of verbal irony is selection of the col- lection of texts andmarking ironic ...
    ... without diacritics (s instead of š, c instead of č or ć, z instead of ž and d or dj instead of đ ), usage of transcribed words instead of words in the BCMS languages, e.g. hepi for happy, and the repetition of some letters for emphasis, e.g. saaad instead of sad ‘now’. The tweet a saaad, sredjivanje sobee ...

  • Prirodno prečišćavanje i stimulisana bioremedijacija podzemnih voda zagađenih naftnim ugljovodonicima

    Nenad M. Marić (2016-09-26)
    Disertacija se konceptualno sastoji iz dva dela kojima je obuhvaćen pasivan (prirodnoprečišćavanje) i aktivan remedijacioni pristup (stimulisana bioremedijacija) kodpodzemnih voda zagađenih naftnim ugljovodonicima.U prvom delu disertacije prikazani su rezultati osmatranja procesa prirodnogprečišćavanja u podzemnim vodama na lokaciji istorijskog zagađenja kerozinom.Tragovi zagađenja naftnim ugljovodonicima pronađeni su 20 godina nakon prosipanjakerozina. Ovo je stvorilo osnovu za proučavanje efekata dugotrajne izloženostipodzemnih voda procesima biodegradacije u terenskim uslovima. Uočeno je da sesnižene koncentracije elektron akceptora (O2, NO3-, SO42-) i povišene koncentracijemetaboličkih produkata biodegradacije ...
    podzemne vode, naftni ugljovodonici, kerozin, prirodno prečišćavanje,stimulisana bioremedijacija
    ... Beograd. 64. ISO 10523:200 Water quality - Determination of pH. ISO, Geneve. 65. ISO 11465 (1993) Soil Quality - Determination of dry matter and water content on a mass basis – Gravimetric method, Geneve. 66. ISO 16703 (2004) Soil Quality - Determination of Content of Hydrocarbon in the Range C10 ...
    ... pollution. Ground Water, vol. 13, pp 33-44. 91. Mendizibal I., Stuyfzand P, Wiersma A (2011) Hydrochemical system analysis of public supply well fields, to reveal water – quality patterns and define groundwater bodies. The Netherlands, Hydogeology Journal 19,83- 100 92. Mersmann P (2003) Transport ...
    ... first part of this dissertation, results of the monitoring of natural attenuation processes at a site of historical contamination by kerosene are presented. Traces of petroleum hydrocarbon contamination were found 20 years after the kerosene spill. This provided a basis for the monitoring of long term ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu

    Nikoleta Aleksić (2021)
    ... growth profile prediction of newly isolated bacterial strains from alkaline soils. Journal of the Science of Food and Agriculture, 100 , 1155-1163. [8] Garcia-Teijeiro R., Lightfoot D., Hernandez J. (2009). Effect of a Chemical Modified Urea Fertilizer on Soil Quality: Soil MicrobialPopulations ...
    ... voda i voda obalnog mora Jugoslsvije, Sl. list SFRJ 6/78. [11] Varol, M., Gökot, B., Bekleyen, A., Sen, B. (2011). Water quality assessment and apportionment of pollution sources of Tigris River (Turkey) using, multivariate statistical techniques – a case study, River Res. Applic. 28(9):1428–1438 [12] ...
    ... elements in coal and their behaviour during combustion in a large power station. Fuel, 74.3, 331-343. SHPIRT. M. YA, S.A.PUNANOVA & STRIZHAKOVA.YU.A. (2007). Trace elements in black and oil shales. Solid Fuel Chemistry, 41, 119-127. SUDERMAN, D. R.; CUNNINGHAM, F. E. (1979). Detection of elements ...

  • Mikroorganizmi - biohidrogeološki indikatori odabranih pojava mineralnih voda Srbije

    Vladimir Šaraba (2021)
    Sa namerom definisanja hidrogeološke uloge i značaja mikrobiološkog diverziteta odabranih pojava mineralnih voda Srbije, primenom sistema biodetektora, dokazano je prisustvo gvožđevitih, sulfato-redukujućih, sluz-produkujućih, heterotrofnih aerobnih i denitrifikacionih bakterija, na osnovu čega je proračunat rizik od razvoja procesa biokorozije i biohemijske inkrustacije, te zdravstveni rizik. Uz procenu rizika, izvedene su analize skenirajuće elektronske mikroskopije biofilmova i hidrogeohemijsko modeliranje, te makroskopska, otpička i difrakciona ispitivanja naslaga inkrustacije, dok je fizičko-hemijskim analizama utvrđena vrednost ukupne mineralizacije iznad 1 g/L, kao i povišeni ...
    biohidrogeologija, SEM analize, makroskopska i optička ispitivanja, rendgenska difrakcija praha, hidrogeohemijsko modeliranje, BART analize, metabarkoding analize mikrobioma, fizičko-hemijske analize, starenje bunara (biokorozija, biohemijska inkrustacija i biozarastanje), zdravstveni rizik
    ... Journal of applied phycology, 20 (3), 227-235. Schmieder, R., & Edwards, R. (2011). Quality control and preprocessing of metagenomic datasets. Bioinformatics, 27 (6), 863-864. Shivani, Y., Subhash, Y., Sasikala, C., & Ramana, C. V. (2017). Characterisation of a newly isolated member of a candidatus ...
    ... (4), 1226-1236. European Union. (1998). Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption. Official Journal of European Communities, L 330, 32-54. Filipović, B., & Stevanović, Z. (1987). Novi prilozi poznavanju termomineralnih voda u Obrenovcu kod ...
    ... survival and growth in drinking water distribution systems. In: Water Quality Technology Conference and Exposition 2012. Toronto, ON, Canada. Enning, D., & Garrelfs, J. (2014). Corrosion of iron by sulfate-reducing bacteria: new views of an old problem. Applied and environmental microbiology, 80 (4) ...

  • Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication

    Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović (2023)
    Ammonites, Taxonomy, Lower Berriasian, Getic, Northern Tethys, Serbia
    ... Material. Almost half of a poor quality, flatly deformed outer mould with the preserved part of the last and adjacent part of the penultimate whorl (specimen S14.2/2). The ventral side is not visible. Description. Semi-evolute specimen with only slightly arched flanks of whorls falling: smoothly ...
    ... (Ostrava) for taking high-quality photo- graphs of ammonites and aptychi and to K. Slamov4 (Ostrava) for the translation of a substantial part of the manuscript into English and H. Parent for English corrections. This study was supported by the Czech Science Foundation of the Czech Republic, project ...
    ... aff. carpathica. However, it can be assumed that the above specimens show the morphological variability of Strambergella carpathica. Distribution. Strambergella carpathica occurs in the higher part of the Jacobi Zone. Frau et al.(2016a, p.104) report that at Les Combes, France; it is also reported ...

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... according to the procedure proposed by Tziallas et al. [1]. Cylindrical samples, 54 mm in diameter, of rock material were extracted by a high-quality laboratory coring machine with a diamond bit. The ends of the specimens and discs were then cut, polished, and shaped to the required height and diameter ratio ...
    ... length of 535 m, and the average depth per borehole was 133 m [11]. 3. Methodology of Laboratory Tests of Strength Parameters of Heterogeneous Rock Mass Laboratory tests of UCS and triaxial test were performed on samples of homogeneous material and composite samples, for which formation blocks of undisturbed ...
    ... followed by a zone of altered dacite. The zone of altered dacite (AD) is yellowish due to the pronounced limonitization of biotite. After the altered dacite, there is compact dacite (D) of gray color, porphyry structure with pronounced large phenocrysts of feldspar. Precise determination of the boundary between ...

  • Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić (2019)
    We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...
    funkcije raspodele gustine, lateralna raspodela gustine, karta gustine podloge

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • Bilingual lexical extraction based on word alignment for improving corpus search

    Jelena Andonovski, Branislava Šandrih, Olivera Kitanović (2019)
    Library and Information Sciences,Computer Science Applications

  • An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)

    N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero (2020)
    Paleontology,Earth-Surface Processes,Ecology, Evolution, Behavior and Systematics,Oceanography

  • 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
    ... to thermal processes in the overriding plate above subducting slab of the Mesozoic Tethys Ocean. Acknowledgements Guilio Viola and lanko Gerdjikov are gratefully acknowledged for their help on improving the overall quality of the manuscript. This study was financed through the Swiss National ...
    ... Grant from the Freiwillige Akademische GeselIschaft Basel. Con- structive reviews by Nikolay Bonev and Neven Georgiev have helped to improve the quality of this paper. References Anđelković M (1967) Strukturno facijalne zone središnje i istočne Srbije. Zbornik Rudarsko-metalurškog fakulteta i Instituta ...
    ... • bi-afold axis of Fa = byi-afold axis of F+ + bi- afold axis of F, Southern part of the Lmin Lower Caomplex N=6 Fig.4 Lower hemisphere equal-area plots of structural elements from a western part of the Lower Complex, b central part of the Lower Complex, c southern part of the Lower Complex ...

  • Univerzitet u Beogradu Rudarsko-geološki fakultet Master rad Modeliranje disperzije prašine u životnoj sredini u fazi proširenja P.K. Veliki Krivelj

    Magdalena Milanović (2024)
    Modeliranje disperzije zagađenja životne sredine predstavlja proces u kom se korišćenjem matematičkih modela vrši simulacija širenja i raspodele zagađenja u životnoj sredini, koje nastaje određenim aktivnostima. Modeliranje nam pomaže da predvidimo zagađenja koja dobijamo planiranim aktivnostima u zemljištu, vodi i/ili atmosferi određene regije, kako bi na vreme preduzeli odgovarajuće preventivne mere kojim se smanjuje ili upotpunosti eminiše uticaj na životnu sredinu i zdravlje ljudi. Glavni zadatak ovog rada je procena uticaja, projekta proširenja kopa Veliki Krivelj, na kvalitet vazduha. Rezultati koji ...
    Modeliranje disperzije zagađenja životne sredine, površinski kop Veliki Krivelj, AERMOD, zagađenje vazduha, disperzija prašine
    ... Agency, https://www.epa.gov/ [14] European environment Agency, Sources and emissions of alir pollutants in Europe, URL https://www.eea.curopa.ceu/publications/air-quality-in-ecurope-2022/sources-and- emissions-of-air/#fnl [15] Republički hidrometeorološki zavod, Meteorološki godišnjak — klimatološki ...
    ... , Rudarsko-geološki fakultet Univerziteta u Beogradu [11] United States Environmental Protection A gency, Air Quality Dispersion Modeling, URL https://www.epa.gov/scram/air-quality-dispersion-modeling, [12] Studija o proceni uticaja na životnu sredinu projekta proširenja površinskog kopa Veliki ...
    ... радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна 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 ...

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... necessary in order to minimize subjectivity in the process of expert evaluation, the application of which is characteristic of SEA. These facts have an additional impact on the quality of the SEA process in the planning and spatial determi- nation of wind farms and, thus, their importance in implementing ...
    ... groups of criteria, with a total of 11 individual criteria, relating to: size (intensity) of impact; spatial dimensions (spatial dispersion) of impact; the likelihood that some of the estimated impacts will occur in reality; and frequency (dura- tion) of impacts (Table 2). Application of the s ...
    ... modeled as a point source of sound. The total sound of the wind farm is then calculated on the basis of the simultaneous operation of all wind turbines and summing the contri- bution of each (Figures 2 and 3). Modeling was carried out for a windspeed of 10 m/s at the height of the wind turbine axis ...

  • Geološke karakteristike neogenih sedimenta na prostoru šire okoline Ledinaca

    Aleksandar Tričković (2024)
    Sagledavanje evolucije neogenih sedimenata na prostoru šire okoline sela Ledinci omogućeno je primenom različitih stratigrafskih metoda na površinskim i potpovršinskim podacima. Za izradu rada korišćene su sedimentološke, biostratigrafske, geofizičke i riftno sekvencione metode, koje su primenjene na površinskim izdancima i bušotinama. Primenom principa riftne sekvencione stratigrafije na podacima dobijenim geofizičkim karotažnim merenjima dobijeni su podaci o vremenu ekstenzije u Panonskom basenu. Pored toga ovi podaci zajedno sa sedimentološkim i stratigrafskim metodama omogućili su izdvajanje depozicionih sredina tokom neogena. Generalno ...
    depozicioni sistemi, neogen, Panonski basen, ekstenzija, formacije, riftna sekvenciona stratigrafija
    ... D., 2023. Evolution of the southeastern part of the Pannonian Basin and its implications, Geološki anali Balkanskog poluostrva, vol. 84, str. 133-145. 35 Rundić, LJ., Knežević, S., Rakijaš, M., 2013. Middle Miocene Badenian transgression: new evidences from the Vrdnik Coal Basin (Fruška Gora ...
    ... радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна 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 ...
    ... and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides, Tectonics, vol. 31, str. 1-31. Nenadić, D., Bogićević, K., Lazarević, Z., & Milivojević, J., 2010. Lower and Middle Pleistocene sediments of eastern Srem (Northern ...

  • 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

  • Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia

    Predrag Radović, Miloš Radonjić, Emmanuel Billia (2020)
    Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...
    rhinoceros, Stephanorhinus hundsheimensis, Serbia
    ... bovine teeth show great variability of proportions and structures (Sher, 1997). DISCUSSION AND CONCLUSION The genus Stephanorhinus Kretzoï, 1942, comprises several extinct rhinoceros species that lived in the Palaearctic region during the Neogene to Quaternary. All members of the genus were doli- c ...
    ... By contrast, the association of stenoid horses with Stephanorhinus cf. hund- sheimensis at Trlica (Codrea and Dimitrijević, 1997) is seen as an indicator of drier, warmer, and more open landscapes (Van Asperen et al., 2012). This apparent palaeoenvironmental variability is in accordance with studies ...
    ... with up to 380 m thick Upper Oligocene to Upper Miocene sediments with coal deposits (Cvetičanin and Novković, 1975; Petrović, 1977). With 6 km of explored channels, Bogovina Cave is one of the largest in Serbia (Milanović, 2015), and it is categorized as a spelaeological Natural Monu- ment (Maran, 2010) ...

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy

    Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)
    anizik, ladin, karbonati, litostratigrafija, biostratigrafija, konodonti, radiolarije, dijageneza
    ... sited in shallow marine warm waters around the fair- weather wave base. The reconstruction of the lateral facies relationship cannot be completed because of the quality of the surface exposure and the lack of analogues in the Balaton Highland. Similar facies assoctations and plausible depositional ...
    ... dolomitization of carbonates from refluxing fluids. The cause for the absence of pervasive dolomitization of platform carbo- nates is yet to be investigated. Stratigraphic evaluation of fossil assemblages 'The exact timing of the platform progradation is uncertain due to the nature of the exposure ...
    ... le amount of scientific iterature published on the geology of the Middle Trias- 1 ShellExploration and Production Company, 150 N. Dairy Ashford Rd, Houston, Texas 77041, U.S.A. E-mail: zsolt.nagy(o'shell.com. 2 | Department of Paleontology, Faculty of Mining and Geology, University of Belgrade, ...