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Упит dcterms_subject_txt:Water Science and Technology,Aquatic Science,Geography

2391 items

  • New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)

    Nevenka Đerić, Nataša Gerzina (2014)
    Gornja kreda, radiolarije, Jadar blok, zapadni pojas Vardarske zone, zapadna Srbija
    ... ACKNOWLEDGMENT The authors gratefully acknowledge Špela GORIČAN and one anonymous reviewer for their constructive comments and suggestions on the manuscript. The work was supported by the Ministry of Education, Science and Technological Dc- velopment of the Republic of Serbia (Project No ...
    ... W. (1996): Facies Characterization of Mid-Mesozoic Deep- Water Sediments by Quantitative Analysis of Silicceous Microfau- nas.- Facies, 35, 231—274. KORCHAGIN, O.A., BRAGINA, L.G. & BRAGIN, N.YU. (2012): Planktonic foraminifers and radiolarians from the Coniacian-Santo- nian deposits of the ...
    ... housed at the Faculty of Mining and Geology in Belgrade (registration numbers BR 1/1, BR 1/2 and BR 1/3). 4.SECTION DESCRIPTION AND BIOSTRATIGRAPHY Inthe wider area of Brežđe, MARKOVIĆ & ANĐELKOVIĆ (1953) distinguished Albian-Cenomanian, Cenomanian, Turo- nian and Senonian sediments. According ...

  • 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

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове

    Јелка Крушић (2023)
    Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...
    тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки модел

  • Analiza sistema odvodnjavanja površinskog kopa Drmno od podzemnih voda sa severnim savršenim ekranom

    Tomislav Šubaranović, Dušan Polomčić, Vladimir Pavlović (2019)
    Izrada nesavršenog ekrana do drugog sloja uglja na površinskom kopu Drmno, pored zadržavanja postojećih standardnih metoda odvodnjavanja od podzemnih voda linijama bunara, predviđena je poslednje decenije u celokupnoj rudarskoj projektnoj dokumentaciji. Iz objektivnih i subjektivnih razloga njegova realizacija nije ostvarena do danas. U međuvremenu je, uz dodatna geološka istraživanja i promenu dinamike i parametara sistema površinske eksploatacije, došlo do određenih značajnih prostornih promena geoloških i rudarskih uslova u eksploatacionom polju. Ovo je omogućilo preliminarno inoviranje pristupa procesu i konceptu ...
    podzemne vode, odvodnjavanje, bunari, ekran, dinamika, troškovi

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • Developing Termbases for Expert Terminology under the TBX Standard

    http://drug.rgf.bg.ac.rs/s/repo/item-set/522 (2014)
    ... Keywords: Termbases, TBX standard, Language Resources, Terminol- ogy Integration and Portability 1 Introduction Translation memory (TM) systems have been the major language technology to support the translation and localization industries for the last two decades [11]. Their essential components are ...
    ... language technology tasks, including termbase applica- tions. However, the system of dictionaries still lacks domain specific terms for some areas, such as mining and geology, which motivated the language technol- ogy team at FMG to build such a dictionary for these areas. For its production and management ...
    ... efficiency. Terms extracted from corpora and subsequently translated should be channeled into the company termbase, so that they can be leveraged for other purposes. Acknowledgments. This research was supported by the Serbian Ministry of Education and Science under the grant #III 47003. ❉❡✈❡❧♦♣✐♥❣ ...

  • 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,

  • Surface functional groups and degree of carbonization of selected chars from different processes and feedstock

    Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)
    The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...
    Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS
    ... char-mediated ['“C]atrazine mineralization in atrazine-adapted soils from Belgium and Brazil. J Agric Food Chem. 2013; 61: 512—516. https://doi.org/10.1021/jf303957a. Antal MJ, Gronli JM. The art, science, and technology of charcoal production. Ind Eng Chem Res. 2003; 42: 1619—1640. https://doi.org/10 ...
    ... measurement, a large amount of water was found in AC1 and still a considerable amount of water in all other samples except the hydro- chars and HW500f (Table 8). The activated carbons also contained adsorbed oxygen (Ox/C). With the exception of SW500f, adsorption of water and oxygen was preferably found ...
    ... feedbacks and impact (POF4-217) from Helmholtz Association awarded to A.L and N.J., and Ministry of Education, Science and Technologic Development of Serbia, project number 172051. The funders had no role in study design, data RESEARCH ARTICLE Surface functional groups and degree of ...

  • 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

  • Infotheca (Q25460443) in Wikidata

    Ranka Stanković, Lazar Davidović (2021)
    Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.
    semantički veb,otvoreni povezani podaci, vikpodaci,Infoteka, metapodaci časopisa
    ... Anupam Joshi, R Scott Cost, and James Matfield. 2002. “Information retrieval on the semantic web.” In Proceedings of the eleventh international conference on Information and knowledge man- agement, 461–468. Stakić, Dorde. 2009. “Wiki Technology - Origin - Development and Impor- tance.” INFOtheca-Journal ...
    ... of information and be able to set out defined rules of automated management. Wikidata actually fits the trends of information technology development that extend the boundary from machine readable to machine comprehensible data on the web. The Scholia project3 (Nielsen, Mietchen, and Willighagen 2017) ...
    ... Šandrih, and Kitanović 2019). For a number of years now, students at the Faculty of Mining and Geology have been undergoing training to enter data into and use the Wikidata11 database, while the In- telligent Systems doctoral course features the subjects Knowledge Represen- tation and Semantic Web ...

  • 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
    ... related to data analysis. To record support deformations over a defined time horizon we use laser scanning technology together with multivariate singular spectrum analysis to conduct data processing and forecasting. Fuzzy time series is applied to classify the intensity of displacements into several independent ...
    ... related to data analysis. To record support deformations over a defined time horizon we use laser scanning technology together with multivariate singular spectrum analysis to conduct data processing and forecasting. Fuzzy time series is applied to classify the intensity of displacements into several independent ...
    ... for Deformation of Surrounding Rocks in Soft Rock Roadway. In Proceedings of the 2011 Fourth International Conference on Intelligent Computation Technology and Automation, Shenzhen, China, 28–29 March 2011; Volume 1, pp. 63–66. 6. Chen, H.; Wang, R. Artificial Neural Network’s Application in Intelligent ...

  • 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)
    ... also look at the quality of measurement of the instru- ment height and altitude of signal. 8. Acknowledgement This paper was realized as a part of the projects TR33029 and TR33044 �nanced by the Ministry of Education, Science and Technological Development of the Republic of Serbia within the framework ...
    ... are vastly spread both horizontally and vertically (approximately 300m in thickness) and discordantly lies over the older beds. They are consisted of sandy and grav- elly clays, clayly and ironaceus quartz sands and semi-consolidated sand- stones, laterally and vertically shifting on the bauxite ...
    ... adit (GIP) to the surface, and afterwards with the same truck to the ore dump location. A special feature of this project requires an analytical and systematic approach when de�ning the existing spatial position and geometry, and setting out structures designed at and under the terrain surface ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... Serbian Ministry of Education and Science grant #III47003. 2. THE RUDONTO TERMINOLOGICAL RESOURCE Presently, RudOnto is a terminological resource organized basically as a taxonomy of terms, in which each term is followed by a definition, its synonyms, and bibliographical reference to ...
    ... from RudOnto is used for labeling and annotation of cartographic content both in Serbian and English. Such annotation is enabled by the existing relations between Serbian and English translational equivalents, and by the strict relation between the dictionary and the content of the database. Some ...
    ... process, and it is included in the blended learning approach at the Faculty of Mining and Geology through an export of its subsets to the Moodle e-learning environment. This paper gives an outline of RudOnto, details about Moodle implementation on the Faculty of Mining and Geology, and describes ...

  • Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara

    Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)
    Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...
    Rotorni bageri, revitalizacija, SRs1200

  • Stable carbon isotope compositions of diterpenoid hydrocarbons in coals from Smederevsko Pomoravlje field, Kostolac Basin, Serbia

    Đoković Nataša, Mitrović Danica, Schwarzbauer Jan, Vuković Nikola, Životić Dragana, Stojanović Ksenija (2014)

  • Application of EC 7 standards in defining geotechnical conditions for the kiln foundation of cement factory Holcim – Serbia

    Rakić Dragoslav, Ćorić Slobodan, Šušić Nenad (2010)

  • 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
    ... Ministry of Education, Science and Technolo- gical Development of the Republic of Serbia (Project No. 176015). We sincerely acknowledge the positive criticism of Š. Goričan and anon- ymous reviewers, as well as to the editor M. Gaetani for his critical observations and for the much improved format ...
    ... adult stage, G. praebingarica and Gondolella fueloepi were found (Fig. 3). This con- odont association was also represented in beds #119 and upward in Fels66rs (Kovics 1994, Voros et al. 2003). The G. praebungarica likely signals the establishment of deeper water environment (e.g. not present ...
    ... E-Mail: nevenka.djeric“orgf.bg.ac.rs 3 Geological, Geophysical and Space Science Research Group of the Hungarian Academy of Sciences, Eotvos University, Pizmany s. 1/c, Budapest 1117, Hungary. 4 Hdvosvolgyi dt 74, Budapest 1021, Hungary. UPaJ Limestone Bt., Andr4ssy Gy. u. 6, Dunakeszi 2120 ...

  • Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)

    Gordana M. Jovanović (2014-12-05)
    Rad obuhvata detaljnu studiju badenskih školjaka koje potiču sa terenajugoistočnog oboda Panonskog basena (Centralni Paratetis). Proučavani su lokaliteti naprostorima Srbije (Fruška gora, Golubac, okolina Beograda, Aranđelovca, Koceljeva,Loznica) i severoistočne Bosne (Ugljevik). Pored taksonomske analize i paleontološkihopisa bivalvija, u radu je dat i spisak revidovanih vrsta koje su do sada pronađene usedimentima badenskog kata istraživanog terena. Do sada je ukupno poznato 41familija, 108 rodova i 174 taksona. Identifikovano je 170 bivalvijskih vrsta, međukojima su neke prvi put konstatovane na ovim ...
    školjke, baden, Panonski basen (Centralni Paratetis), stratigrafija,paleoekologija, paleogeografija, paleobiogeografija
    ... The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea). African Invertebrates. 42: 263– 321. Dijkstra H. H. i Maestrati P. 2008. New species and new records of deep-water Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the South Pacific ...
    ... 209 foraminifera and stable isotope (δ13C and δ18O) study in the Vienna Basin (Slovakia). International Journal of Earth Science, 98: 1109-1127. Kowalke, T., Reichenbacher, B. 2005. Early Miocene (Ottnangian) Mollusca of the Western Paratethys-ontogenetic strategies and palaeo-environments. ...
    ... 1, Tastu, Paris. Rabyl, D., Lagadeuc, Y., J. Dodson, J.J., Mingelbier, M. 1994: Relationship between feeding and vertical distribution of bivalve larvae in stratified and mixed water. Marine ecology progress serie, 103: 275-284. Radivojević D., Rundić, Lj. i Knežević, S. 2010. Geology of the Čoka ...