Претрага

Упит dcterms_subject_txt:Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear Physics

2342 items

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... production and import, less to the sum of export, stock changes, bunkers, and statistical difference [9]. The TFC from RES is calculated as the sum of gross final consumption of electricity from RES, gross final consumption of ener- gy from renewable sources for heating and cooling and gross final ...
    ... Indicators for Sustainable Development: Guidelines and Methodologies, 2005, International Atomic Energy Agency, http://www-pub.iaea.org/MTCD/publications/PDF/Pub1222_web.pdf [9] ***, Energy Balance of the Republic of Serbia in 2014 (in Serbian)., Statistical Office of the Republic of Serbia, http://webrzs ...
    ... OF SERBIA by Boban S. PAVLOVIĆ* and Dejan D. IVEZIĆ Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia Original scientific paper DOI:10.2298/TSCI160923303P There is a range of modern approaches and models in literature for the evaluation and determination of energy security ...

  • An integrated study of thermal treatment effects on the microstructure and magnetic properties of Zn-ferrite nanoparticles

    Antić Bratislav V., Perović Marija, Kremenović Aleksandar, Blanuša Jovan L., Spasojević Vojislav V., Vulić Predrag, Bessais Lotfi, Božin Emil S. (2013)

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... Standardization EN 14157:2008). To evaluate the physical and mechanical properties of the investigated carbonate rocks, basic descriptive statistics were performed using the StatSoft computer software. Statistical parameters (mean, minimum, and maximum value) are presented using box-Whisker diagrams ...
    ... limestone are probably the consequence of the small statistical sample. The Klisura and Skrzut limestones are very compact rocks and they are characterised by consistency values of total porosity (mean is less than 1 %; Fig. 4b). Although Tisnica and Struganik limestones show a wide range of porosity ...
    ... tests (Table 1) and basic statistical analyses (Fig. 4), all of the limestone samples exhibit relatively uniform values of mechanical properties, but some heterogeneity in terms of physical properties. Because of the low amount of void space, the bulk density varies slightly and is in range of ...

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Kristalografsko proučavanje strukturne desimetrizacije granata grosularsko-andraditske izomorfne serije

    Pavle I. Tančić (2016-09-21)
    U ovoj Doktorskoj disertaciji proučavano je pet različitih zona makroskopski zonarnog grandita sa lokaliteta Meka Presedla (Kopaonik, Srbija). Pomoću hemijske i elektronske analize mikroprobe preračunati su relativno visoko homogeni sastavi zona, t.j.: Grs64±1Adr36±1Sps2 (A), Grs62±1Adr38±1Sps2 (B), Grs59±2Adr40±2Sps2 (C), Grs58±2Adr41±2Sps2 (D) i Grs58±1Adr41±1Sps2 (E). Glavne promene u sastavima izražene formulom: Ca2,93-2,97Mn0,05-0,06Mg0,00-0,01Al1,14-1,26Fe3+0,72-0,83Ti0,00-0,02Si2,97-3,02O12 ukazuju da je jedina značajnija varijacija ustanovljena samo kod Al-Fe3+ raspodela u oktaedarskom položaju. Ovakav hemijski sastav je potvrđen i sa matematičkim proračunima iz IC i Raman analiza. Urađena ...
    Macroscopically zoned grandite, chemical analysis, electron microprobe analysis, Raman, Rietveld, structure, dissymmetrization, space group
    ... 500 Internal Server Error

    Internal Server Error

    The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

    ...

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities

  • On the possibility to simultaneously determine the long-term average fluxes of solar pp-neutrinos and cosmic ray muons.

    Anicin Ivan, Pejović Vladan, Pavićević Miodrag, Amthauer Georg, Boev Blažo, Bosch Fridrih, Brüchle W, Djurčić Zoran, Henning W. F., Faestermann T., Jelenković Rade, Niedermann S, Weiss A. (2011)

  • Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX

    Pavićević Miodrag, Bosch Franz, Amthauer Georg, Aničin Ivan, Boev Blažo, Brüchle W., Cvetković Vladica, Djurčić Zoran, Henning W. F. , Jelenković Rade, Pejović, Vladan, Weiss A. (2012)

  • 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
    ... with Linguistic Rules Generated from Minimize Entropy Principle and the Cumulative Probability Distribution Approaches. Entropy 2010, 12, 2397–2417. [CrossRef] 24. Kaufmann, A.; Gupta, M.M. Introduction to Fuzzy Arithmetic: Theory and Applications; Van Nostrand Reinhold: New York, NY, USA, 1985. ...
    ... strength and failure Energies 2021, 14, 3710. https://doi.org/10.3390/en14123710 https:/ /www.mdpi.com/journal/energies Energies 2021, 14, 3710 2 of 20 mode, was provided when a comparison of these three types of information was done [1]. Danial Jahed Armaghani et al. [2] applied three-nonlinear forecasting ...
    ... classical multivariate statistical analysis literature. The matrix Y(i)Y(i)T , which is used in the univariate SSA, for the series X(i) Ni appears along the main diagonal, and the products of two Hankel matrices Y(i)Y(i)T (i 6= j) that are related to the series X(i) Ni and X(j) Nj appear in the ...

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)

  • Long-term rockslope monitoring and rockfall prediction

    Miloš Marjanović, Biljana Abolmasov, Marko Pejić, Jelka Krušić (2021)

  • Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    ... [33]. Carcinogenic risk is the probability of incidence of can- cer from chemical exposure. It is calculated using the fol- lowing formula: R=1-exp(-(SF · ADD) ...where: SF is the oral carcinogenic slope factor and for As, it is equal to 1.5 mg/kg·day. Results and Discussion Quality of Groundwater ...
    ... preted by water supply source and by populated area using statistical software IBM SPSS 15.0. The hydrochemical map showing zones of arsenic concentrations in groundwa- ter in Vojvodina was generated using ESRI ArcGIS 9.3 and a scale of 1:650.000. Assessment of the Risk Incurred through Drinking Water ...
    ... multivariate statistical techniques and arsenic risk assessment, Sci. Total Environ. 420, 100, 2012. 41. STHIANNOPKAO S, KIM KW, CHO KH, WANTALA K, SOTHAM S, SOKUNTHERA C, KIM J.H., Arsenic levelin human hair, Kandal Province, Cambodia: the influences of groundwater arsenic, consumption period, age and gender ...

  • Annotation of the Serbian ELTeC Collection

    Ranka Stanković, Cvetana Krstev, Branislava Šandrih Todorović, Mihailo Škorić (2021)
    Ovaj rad predstavlja takozvano izdanje nivoa 2 kolekcije tekstova SrpELTeC razvijene u okviru aktivnosti Radne grupe 2 – Metode i alati COST akcije CA 16204 (Distant Reading for European Literary History) i njene specifikacije šeme. Izdanje nivoa 2 je nastavak izdanja nivoa 1, koje se koristi kao ulaz za morfosintaksičke i NER anotacije romana. Srpska obrada nivoa-2 je navedena kroz potrebne korake, uključujući metode i alate koji se koriste u tom procesu. Neki statistički podaci iz srpske kolekcije nivoa ...
    udaljeno čitanje, literarni korpus, tagiranje, prepoznavanje imenovanih entiteta, lematizacija, ELTeC

  • Енергетска безбедност Европске уније у светлу актуелне енергетске транзиције

    Бобан Павловић, Дејан Ивезић (2021)
    Енергетска стратегија Европске уније, која од 2015. године обухвата и циљеве у области климатских промена, тежи изградњи „енергетске уније” која потрошачима из ЕУ даје сигурну, приступачну, чисту и одрживу енергију. Енергетска политика ЕУ поставља пред себе амбициозне циљеве у погледу коришћења обновљивих извора – учешће од 32% до 2030. године. Овако опсежну и динамичну енергетску транзицију у Европи усложњава хетерогеност националних енергетских система у погледу структуре енергетског микса, нивоа увозне зависности, као и нивоа технолошког, друштвеног и економског ...
    енергетска безбедност, Европска унија, енергетски показатељи, природни гас, обновљиви извори енергије
    ... K., “Quantifying, measuring, and strategizing energy security: Determining the most meaningful dimensions and metrics”, Energy, 76, 2014, pp. 838-849. 21. Eurostat, Statistics, Energy statistics − an overview, EU, 2020, https://ec.europa.eu/eurostat/statistics- explained/index.php?title=E ...
    ... transmission network between 2009 and 2014, European Commission, 2015, https://core.ac.uk/download/pdf/38631659.pdf?repositoryId=961. 23. Sönnichsen, N., Number of LNG import terminals in Europe by country 2019, Statista, 2020, https://www.statista.com/statistics/326008/lng- import-terminals-by-country- ...
    ... Policy, EU, 2015, https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=COM:2015:80:FIN. 25. Eurostat, Statistics, Renewable energy statistics, Eurostat, 2020, https://ec.europa.eu/eurostat/statistics- 52 explained/index.php?title=Renewable_energy_statistics#Share_of_rene wable_energy_more_t ...

  • Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia

    Marina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić (2020)
    Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analize

  • First paleomagnetic and magnetic anisotropy results from Montenegrо - the coastal area

    Emö Márton, Vesna Cvetkov, Martin Đaković, Vesna Lesić, Slobodan Radusinović (2021)
    ... NW-SE oriented AMS lineations, perfectly following the Dinaridic trend recognized in Croatia. Onelocality, the only one with moderate tilt and rather poor statistical characteristics suggestpost–Eocene CCW, while those with steep dips have well-defined paleomagnetic directions, whichare aligned with the ...
    ... under the Creative Commons Attribution 4.0 License. First paleomagnetic and magnetic anisotropy results fromMontenegro – the coastal area Emö Márton1, Vesna Cvetkov2, Martin Đaković3, Vesna Lesić4, and Slobodan Radusinović3 1Mining and Geological Survey of Hungary, Paleomagnetic Laboratory, Budapest, Hungary ...
    ... gasoline powered, the softer ones with an electric drill.The laboratory measurements, demagnetizations, statistical evaluations of the measurementswere carried out using standard methods in the Paleomagnetic Laboratory of the Mining andGeological Survey of Hungary. From the Dalmatian zone, the Upper Cretacous ...

  • Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera

    Aleksandra B. Kolarski (2016-08-25)
    Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...
    prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojave
    ... page 3465. Rakov, V. A., Uman, M. A. (2003). Lightning: physics and effects. Cambridge University Press., page 687. Rycroft, M. J. (2003). The Earth and its atmosphere. In Davies, M., editor, The standard handbook for aeronautical and astronautical engineers, pp. 16.1-16.12. McGraw-Hill. ...
    ... in the earth-ionosphere waveguide. IEEE Transactions on Antennas and Propagation, 48(9), pp. 1420–1429. Cummer, S. A. (2003). Current moment in sprite-producing lightning. Journal of Atmospheric and Solar-Terrestrial Physics, 65, pp. 499–508. Cummer S. A., Briggs M. S., Dwyer J. R., Xiong S ...
    ... Adams, C. D. D., Brundell, J. B., Dowden, P. E. (1994). Rapid onset, rapid decay (RORD), phase and amplitude perturbations of VLF subionospheric transmissions. Journal of Atmospheric and Terrestrial Physics, 56(11), pp. 1513-1527. Dwyer, J. R. (2004). Implications of X-ray emission from lightning. ...

  • Ograničenja primene optimizacionih algoritama u slučaju kopova

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Petar Marković, Dejan Ranković (2020)
    Proces optimizacije površinskih kopova, kao sastavni deo strateškog planiranja, veoma je važan sa stanovišta ostvarivanja maksimalnih efekata proizvodnje. To je složen zadatak koji vrlo često podleže vrlo strogim geometrijskim i drugim praktičnim rudarskim ograničenjima. Ova ograničenja u posebno su izražena na površinskim kopovima uglja, te u značajnoj meri mogu povećati stepen neizvesnosti rudarskog projekta, odnosno izazvati neželjena dejstva u pogledu profitabilnosti poslovanja. Iz tog razloga, veoma je važna primena savremenih optimizacionih alata, koji u značajnoj meri mogu olakšati celokupan ...
    ... complex task that is very often subject to very strict geometric and other practical mining restrictions. These limitations are particularly pronounced in open pit coal mines, and can significantly increase the degree of uncertainty of the mining project, or cause side effects in terms of business ...
    ... reason, it is very important to apply modern optimization tools, which can significantly facilitate the entire optimization process, and also reduce business uncertainty. ! Stevanović Dejan, Univerzitet u Beogradu, Rudarsko-geološki fakultet, Beograd ? Banković Mirjana, Univerzitet u Beogradu, R ...
    ... Plants Through Mine Coal Quality Planning and Control. Thermal Science, 22(1B), pp.721-733, 2017 Benndorf J.: Investigating the variability of key coal quality parameters in continuous mining operations when using stockpiles. Advances in Orebody Modelling and Strategic Mine Planning I. AusiMM, 2011 ...

  • New data for the geochemical determination of the solar pp-neutrino flux by means of lorandite mineral

    Pavićević Miodrag, Bosch F., Amthauer Georg, Aničin Ivan, Boev Blažo, Brüchle W., Faesterman, T., Henning W.F., Jelenković Rade, Pejović Vladan, Djurčić Zoran (2010)

  • 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