Претрага

Упит dcterms_creator_txt:Мирјана С. Гочанин

1024 items

  • Rangiranja bagera za njihovu revitalizaciju primenom višekriterijumske analize

    Ivan Obradović, Dragan Ignjatović, Ranka Stanković, Ljiljana Ivković (2006)
    Obzirom da je na našim površinskim kopovima trenutno u eksploataciji veći broj rotornih bagera sa sličnim tehničkim karakteristikama i približno istom starošću postavlja se pitanje kako rangirati bagere, i kojim redom da se izvrši njihova revitalizacija. Za ocenu stanja i rangiranje ovako velikog broja bagera najpogodnije se pokazalo korišćenje višekriterijumskih metoda sa višeatributnom ocenom, odnosno bodovanje referentnih indikatora stanja bagera na osnovu ekspertske ocene. U ovom radu prikazan je metodološki pristup koji je korišćen prilikom izrade Studije «Produžetak radnog ...
    rotorni bageri, revitalizacija, rangiranje, višekriterijumska analiza
    ... Međunarodni simpozijum Mehanizacija i automatizacija u rudarstvu i energetika, zbornik radova, septembar 2006, Beograd | 2006 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005413 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... Programski sistem RotBag, razvijen na Rudarsko-geološkom fakultetu daje softversku podršku prikazanom rešenju. 4. LITERATURA [1] Nikolić I., Borović S. (1996.) VIŠEKRITERIJUMSKA OPTIMIZACIJA, Metode, primena u logistici, softver, Centar vojnih škola Vojske Jugoslavije. [2] Studija (2004.) PRODUŽETAK ...

  • Uniaxial compressive strength test before and after standard fire test on rock mass

    Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)
    ... Kijanović | Fifth symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 23-25. 06. 2022 | 2022 | | http://dr.rgf.bg.ac.rs/s/repo/item/0006771 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... testing, samples are stored at room temperature. Load on test specimen must be applied continuously, at a constant pressure increase of 1 ± 0,5 MPa/s. Maximum load must be accurately recorded. In Figure 2 samples prepared for uniaxial compressive strength test according to SRPS EN 1926 are presented ...

  • Clockwise rotation in the Serbian segment of the Vardar zone and in the Danubicum of Eastern Serbia - tetonic implication

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Tomić (2015)

  • The State and Perspective of Belgrade District Heating System Development

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Fethi Silajdžić, Samra Arnaut, Goran Đelić (2019)
    District heating (DH) system in Belgrade provides energy for heating of more than 21 million m2 in households (app. 50% of all households), public, commercial and industry sectors. Public Utility Company “Beogradske elektrane” is responsible for all segments of the DH system operation. The system is fueled mostly by natural gas. The share of renewables is negligible. The research analyzes effects of implementation of two main projects proposed in the Development Strategy of the PUC - the introduction of ...
    daljinsko grejanje, Beograd, razvoj
    ... Aleksandar Madžarević, Fethi Silajdžić, Samra Arnaut, Goran Đelić | 5th International Conference on Smart Energy Systems | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005047 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...

  • Речници у дигиталном добу - информатичка подршка за српски језик

    Биљана Рујевић (2022)
    Морфолошки речници српског језика представљају електронски језички ресурс који има значајну историју развоја и коришћења за потребе обраде природних језика. С обзиром на то да су чувани у облику датотека чији је број нарастао па је самим тим управљање речницима постало отежано јавила се потреба за смештањем информација из речника у облик лексикографске базе. Како би се омогућио симултани рад на развоју речника за више корисника јавила се потреба за веб-апликацијом заснованој на лексикографској бази. Како би се размотриле ...
    електронски речници, лексикографска база података, лексички ресурси, српски језик

  • Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika

    Kostić N. Bojan (2021)
    Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...
    Rudnik, kontaktni metamorfizam, sedimentne stene, hornfels, skarn, granati, vezuvijan
    ... of Seismology. 283-A, p. 328-354 Armbruster, T., Bonazzi, P., Akasaka, M., Bermanec, V., Chopin, C., Gieré, R., Heuss- Assbichler, S., Liebscher, A., Menchetti, S., Pan, Y. 2006: Recommended nomenclature of epidote-group minerals. Eur. J. Mineral. 18, p. 551–567 Bau, M. 1991: Rare-earth element ...
    ... Univerziteta u Beogradu, 61, 1, p.369-388 Karamata, S., Krstić, B. 1996: Terranes of Serbia and neighboring areas. In Knežević- Đorđević V. & Krstić B. (Eds.) Terranes of Serbia. Faculty of Mining and Geology, University of Belgrade, p. 25-40 Karamata, S. 2006: The geological development of the Balkan ...
    ... Karamata, S., Šarić, K. 2009: Overview of ophiolites and related units in the late Palaeozoic– early cenozoic magmatic and tectonic development of Tethys in the northern part of the Balkan region. Lithos, 108, p.1–36 Schmid, M., Bernoulli, D., Fugenschuh, B., Matenco, L., Schefer, S., Schuster ...

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...
    Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatori

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić | Tehnički vijesnik;Technical Gazette | 2016 | | 10.17559/TV-20150317171035 http://dr.rgf.bg.ac.rs/s/repo/item/0002869 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... svojstva, kemijski i mineralni sastav i svojstva elektrofilterskog pepela dobivenog u procesu sagorijevanja u termoelektrani Nikola Tesla A (TENT A) s dodatkom veziva hidratiziranog vapna i cementa. Cilj istraživanja je mogućnost uporabe elektrofilterskog pepela za izradu elemenata cestovnih konstrukcija ...
    ... at 30 mA and a voltage of 40 kV. Record the sample is performed in the range of 2θ from 5 to 50° with a step of 0,02° and a retention time of 0,5 s at each step. The data position of the diffraction peaks 2θ (°), the value of the flange distance d (m), and the corresponding intensities (I) use ...

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... Pešić-Georgiadis | 12th International Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005063 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... Polygonal entities represent a state of land cover differentiated in 44 classes, divided into a 3-level hierarchical classification system (Stojkovic S., 2017). The COPERNICUS website includes CLC datasets for different years with the corresponding land cover changes (Copernicus land Monitoring Service ...
    ... case study. In the case of Vranje, it possible to extract only the class No. 112 — Discontinuous urban fabric, showed in Figure 9. Using ArcMap”s option “Select Features” it is possible to export the selected class of the land cover and make the new shape file which contains only the urban area ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... singular and both male and female gender and it is stored in the Form table. The combination of grammatical categories (”ms” – (m) male (s) singular and (fs) – (f) female (s) singular) is stored in the FormGramCats table while the separated categories are stored in the FormGramCatProperties table. Lexical ...
    ... Dictionary to Leximirka Lexical Database | Biljana Lazić, Mihailo Škorić | Infotheca | 2020 | | 10.18485/infotheca.2019.19.2.4 http://dr.rgf.bg.ac.rs/s/repo/item/0004994 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... ing entry in a DELAS dictionary. Behind the colon, there is a list of grammatical categories defined: the masculine gender “m”, the singular number “s”, instrumental case - “6” and animateness tag for living beings - “v”. The basic components of the morphological dictionaries of multiword units are ...

  • Unraveling Innerworkings of Magmatic System Beneath the East Pacific Rise 9º50’N

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Felix Waldhauser, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Malden R. Nedimović, Juan Pablo Canales, Hélène D. Carton, Javier Escartin, John C. Mutter (2021)
    ... Malden R. Nedimović, Juan Pablo Canales, Hélène D. Carton, Javier Escartin, John C. Mutter | AGU Fall Meeting 2021 | 2021 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005686 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...

  • Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure

    Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)
    ... Book of Abstracts / 26th Congress of SCTM with international participation, 20-23 September 2023, Ohrid, R. Macedonia | 2023 | | http://dr.rgf.bg.ac.rs/s/repo/item/0008191 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...

  • Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja

    Jovana M. Janković Pantić (2022)
    Odlaganje otpada na komunalne deponije predstavlja osnovni način zbrinjavanja otpada u Srbiji. Kako bi se prostor za deponovanje materijala racionalno koristio potrebno ga je svakodnevno zbijati sa unapred definisanom količinom vode koja se dodaje. Dobro zbijeni komunalni otpad zauzima manju zapreminu i omogućuje sigurnije skladištenje, pa je korisno prethodno laboratorijski odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). U Srbiji do sada nisu određivani parametri zbijanja, dok je u svetu primenjivana standardna metoda (Proktorov opit) ...
    komunalna deponija, zbijanje, Proktorov opit, malj sa šiljcima, koeficijent razaranja

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... Miroslav Crnogorac | 8th International Conference Mining and Environmental Protection, 22 – 25th September 2021, Serbia | 2021 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005662 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... Available online: https://www.iea.org/data-and-statistics/charts/global-energy-related-co2- emissions-by-sector (accessed on 30 July 2021). 8. Moazzem, S.; Rasul, M.; & Khan, M.M.K. A Review on Technologies for Reducing CO2 Emission from Coal Fired Power Plants. In: Thermal Power Plants. IntechOpen, 2012 ...
    ... researchgate.net/publication/268203019_A_Review_of_CO_2_Capture_by_Absorpt ion_and_Adsorption (accessed on 05 June 2021). 23. Arachchige, U.; Ekanayaka, S.; Ruvishani, L.S.; & Jinasoma, N. Review of Post Combustion CO2 Capture Technologies. JOURNAL OF RESEARCH TECHNOLOGY AND ENGINEERING 2020, 1 (4), 8-20 ...

  • WS4LR - a Worksation for Lexical Resources

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović (2006)
    Lexical Resources, Wordnet, Serbian
    ... Obradović | Proceedings of the Fifth Interantional Conference on Language Resources and Evaluation, Genoa, Italy, May 2006 | 2006 | | http://dr.rgf.bg.ac.rs/s/repo/item/0004867 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... Technology Conference, April 21-23, 2005, Poznan, Poland, ed. Zygmunt Vetulani, pp. 305-309, Wydawnictwo Poznanskie Sp. z o.o., Poznan Stamou S., et al. (2002). BALKANET: A Multilingual Semantic Network for Balkan Languages, in Proc. of 1st International Wordnet Conference, Mysore, India ...
    ... krusxka1 Pyrus communis 1 Vocxka s glatkim listom i beliI cvetovima, plodovi su slatki i socyni sa karakteristicynim tvrdim zrncima. n ENG20-11902961-n ...

  • Integrisano okruženje za pripremu paralelizovanog korpusa

    Ivan Obradović, Ranka Stanković, Miloš Utvić (2007)
    Razvoj paralelizovanih korpusa zahteva pripremu paralelnih tekstova za njihovu integraciju u paralelizovani korpus. Reč je o jednom kompleksnom zadatku koji se može rešiti na različite načine, i koji mora da se odvija u nekoliko koraka. U ovom radu najpre je iznet postupak pripreme paralelnih tekstova za paralelizovani korpus koji se koristi u Grupi za jezičke tehnologije Univerziteta u Beogradu. Potom je dat kratak pregled programa (XAlign, Concordancier, WS4LR), odnosno softverskih alata koji se pri tome koriste. Nedostatak udobnog okruženja ...
    ... međunarodnog simpozijuma Razlike između bosanskog/bošnjačkog, hrvatskog i srpskog jezika, Graz, Austria, April 2007 | 2007 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005260 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... Potom je uspostavljena veza između spojenih segmenata na engleskom sa identifikatorom l3 i segmenta na srpskom sa identifikatorom x94 (izvorno n94). S obzirom na to da je format koji se generiše automatskom paralelizacijom praktično nečitljiv za običnog korisnika, Loria je razvila program Concordancier ...
    ... toga u neposrednoj budućnosti će se u interakciji sa korisnicima dodatno unaprediti korisnički interfejs, kako bi za korisnika postao još udobniji, a s tim u vezi predstoji i kreiranje detaljne dokumentacije o svim mogućnostima ovog integrisanog okruženja. Literatura [1] Christ, Oli and B.M. Schulze ...

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... Scientific Conference ”Conference on Mechanical Engineering Technologies and Applications” COMETa2020, East Sarajevo, 2020 | 2020 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005065 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... rs/wp- content/uploads/2018/11/POSITION-PAPER-Status-of-Using-Wood-Biomass-for- Energy-Purposes-in-Serbia-FINAL.pdf(accessed 15 Sept. 2020). [8] Saba, S., Bachawati, M.E., Malek, M.(2020). Cradle to grave Life Cycle Assessment of Lebanese biomass briquettes, Journal of Cleaner Production, Vol. 253, pp ...
    ... water heater, Journal of Cleaner Production, Vol. 37, pp. 154-161. [14] Roumpedakis, T.C., Kallis, G., Magiri-Skouloudi, D., Grimekis, D., Karellas, S.(2020).Life cycle analysis of ZEOSOL solar cooling and heating system, Renewable Energy, Vol. 154, pp. 82-98. https://ec.europa.eu/energy/topics/e ...

  • Projection of SO2 emissions in coal power plants in Serbia

    Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)
    The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...
    енергeтика, емисије, СО2, угаљ, електране
    ... Miroslav Crnogorac | 9th International Conference Mining and environmental protection, Sokobanja 24-27th May 2023. | 2023 | | http://dr.rgf.bg.ac.rs/s/repo/item/0008175 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
    ... plant is given in Figure 5. i "Strategic Impact Assessment for the National Emission Reduction Plan (NERP)"{14| 4 30 140 Millions Thousands 5 s | Projection of total calorific value 24.000.000 GJ - period 2023-2040 | 120 · + E o [ % Hi 100 c = o ·š 20 j Projection emission without desul ...

  • Geologic Information System of Serbia

    Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović (2011)
    Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...
    Geologic information system, Conceptual model, Logical model, Implementation, Geodatabase
    ... Kitanović | Proceedings of the 17th Meeting of the Association of European Geological Societies, 14.-18. september 2011. | 2011 | | http://dr.rgf.bg.ac.rs/s/repo/item/0001065 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...

  • Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data

    Vesna Cvetkov, Ilija Vasiljević, Mirko Petković (2015)