Претрага

Упит dcterms_subject_txt:Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental Engineering

2514 items

  • Transition pathways of household heating in Serbia: Analysis based on an agent-based model

    Boban Pavlović, Dejan Ivezić, Marija Živković (2022)
    To explore pathways of the energy transition of household heating, an agent-based simulation model was developed for the case of the Serbian household sector. The model is focused on individual entities (households) with the objective to explore the effects of policy instruments on energy transition in households with individual heating systems. Empirically collected survey data were used as input for households’ attitudes towards sustainable heating. Simulations showed that the proposed instruments would lead to higher heating efficiency and less ...
    energetska tranzicija, modeliranje bazirano na agentima, sistemi grejanja, sektor domaćinstva, obnovljivi izvori energije, emisija CO2

  • Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Katarina Nestorović (2021)
    U datom eksperimentalnom radu su termografskim metodama ispitivane termofizičke karakteristike različitih materijala. Za ispitivanja su izabrani mesingani niovčić, ugalj i pelet, jer imaju različita termoizolaciona svojstava i različito stanje površine. Uzorci su najpre hlađeni, a zatim je njihovo zagrevanje na sobnoj temperaturi praćeno termalnom kamerom. U drugom delu eksperimenta, korišćena je impulsna termografija, a zagrevanje površine uzoraka vršeno je svetlosnom pobudom.
    termografija, impulsna termografija, nedestruktivno testiranje materijala, mesing, ugalj, pelet

  • Određivanje parametara smičuće čvrstoće tla primenom statističke metode

    Božidar Rudnjanin (2024)
    Određivanje parametara smičuće čvrstoće tla je od ključne važnosti u geotehničkom inženjerstvu jer utiče na stabilnost i nosivost raznih građevinskih konstrukcija. Ovaj master rad obrađuje temu primene deskriptivne statistike za analizu parametara smičuće čvrstoće tla,čime se obezbeđuje osnov za donošenje odluka o planiranju i izvođenju građevinskih projekata.U prvom delu rada, prikupljaju se relevantni podaci o smičućoj čvrstoći tla iz prethodnih laboratorijskih ispitivanja za trasu buduće brze saobraćajnice Novi Sad - Ruma.Ti podaci uključuju vrednosti smičuće čvrstoće i različite faktore ...
    deskriptivna statistika, parametri čvrstoće tla, geostatistika
    ... Definition and determination of characteristic soil properties, In proceedings XII International conference on soil mechanics and geotechnical engineering, Hamburg, 2271-2274. Frank R., Baudin C., Driscoll R. i ostali (2004): Designer's Guide to EN 1997-1 Eurocode 7: Geotechnical Design – General ...
    ... Spross, J., and Larsson, S. (2019). “Characteristic values of geotechnicalparameters in Eurocode 7.” Proceedings of the Institution of Civil Engineers:Geotechnical Engineering, 172(4), 301—311 Samy K. (2003): Stochastic analysis with finite elements in geotechnical engineering, PhD Thesis, ...
    ... u inženjerskoj praksi, Rudarski institut, Beograd. Orr TLL. i Breysse D., (2008): Eurocode 7 and reliability-based design. In reliability-based design in „geotechnical engineering: Computations and Applications. CRC Press, London, UK, 299-344. Pavlović N. ı Lokin P., (2002): Principi inženjerske ...

  • Preparation, synthesis and characterization of nanometric Ca0.9Er0.1MnO3

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... Serbia ?Department of Mineralogy, Crystallography, Petrology and Geochemistry, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, University of Belgrade, Serbia ”?Lahnraloryfor Material Science, Institute of Nuclear Science „ Finča “, National Institute ofthe Republic of Serbia, University ...
    ... in Ceramics (15 ; 2023 ; Novi Sad) Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad ; [editor-in-chief Vladimir V. Srdić, SoBa Htibalov4]|. - Novi Sad : Faculty of Technology, 2023 (Aranđelovac : Tri 0). - XV, 137 str. : ...
    ... 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 is available at: www.dr.rgf.bg.ac ...

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... for mine planning and coal quality control”, ISSN 0354-9836, Thermal science, Vol. 18., No. 4, 2014, pp.1361-1372, DOI: 10.2298/TSCI130201031S 9. Zhao, S., Lu, T.F., Koch, B. and Hurdsman, A., 2015. 3D stockpile modelling and quality calculation for continuous stockpile management. International Journal ...
    ... components of the Coal Quality Management System, and not separately. COAL QUALITY Regarding coal quality, an important parameter relates to the quality range of the parameter of interest. Most often the parameters of interest are the lower heating value and sulphur content, but other parameters ...
    ... International Journal of Coal Geology, 112, pp.141-153. 2. Beretta, F.S., Costa, J.F.C.L. and Koppe, J.C., 2010. Reducing coal quality attributes variability using properly designed blending piles helped by geostatistical simulation. International Journal of Coal Geology, 84(2), pp.83-93. 3. Ignjatović ...

  • Analysis of noise sources in power transformers and rotating electrical machines

    Snežana Aleksandrović, Aleksandar Cvjetić (2015)

  • Crystallographic, spectroscopic, thermal and computational studies of polymeric cobalt(II)–mellitate complex with 2,2′-bipyridine

    Lidija Radovanović, Dušan P. Malenov, Marko V. Rodić, Aleksandar Kremenović, Jelena Rogan (2021)
    Orange single crystals of new polymeric cobalt(II) complex {[Co(bipy)(H2O)4]2[Co(μ-mell)(H2O)2]·10H2O}n, 1, were synthesized by slow evaporation method at room temperature (bipy = 2,2′-bipyridine, mell = hexaanion of mellitic acid) and its crystal structure was determined by single-crystal X-ray diffraction. The complex 1 was characterized based on elemental analysis, FTIR spectroscopy and thermal (TG/DTA) analysis followed by computational analysis of noncovalent interactions and quantum chemical calculations of interaction energies. In 1, two crystallographically different Co(II) atoms adopt a deformed octahedral geometry, ...
    Inorganic Chemistry, Organic Chemistry, Spectroscopy, Analytical Chemistry

  • Isolation of old works and the possibility of a durable solution for the drainage of the pit mine Soko

    Denić Miodrag, Svrkota Igor, Stojadinović Saša, Dragišić Veselin, Živanović Vladimir, Joković Dragan (2015)

  • Common barbel (Barbus barbus) as a bioindicator of surface river sediment pollution with Cu and Zn in three rivers of the Danube River Basin in Serbia.

    Arian Morina, Filis Morina, Vesna Đikanović, Slađana Spasić, Jasmina Krpo-Ćetković, Bojan Kostić, Mirjana Lenhardt (2015)

  • XRD and SEM analysis of urinary stones

    Miljević Miljana, Rosić Aleksandra (2010)

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... of pump and engine URL: hitps:/pgp.co.id/products/Downhole_Equioment_Products.html [7] Johnson, R., 2001: Deve/opment Geology, Imperial College, London, England [8] Niladri K. mitra. Principles of arfiticial lift [9] Takacs, G., 2015. Sucker-rod Pumping handbook: Production Engineering Fundamentals ...
    ... Mining and Geology Belgrade doc. dr Miroslav Crnogorac, member Faculty of Mining and Geology Belgrade prof. dr Dejan Ivezić, member Faculty of Mining and Geology Belgrade Defense date: SUMMARY For a long time in the history of oil production, sucker rod pumps have been the first and in many ...
    ... a function of the formation volume factor, the oil formation volume factor Bo (m*/m*), and the water formation volume factor Bw (m?/m?): qo+qw 32 n qoBo+qwBw — qo - oil production, (m*/m*) — qw- water production, (m?/m?) If all the gas passes through the pump, the volumetric efficiency increases ...

  • Discussion of „Classroom activities to illustrate concepts of Darcy’s law and hydraulic conductivity“ by Roseanna M.Neupauer and Norman D. Dennis

    Brkić Dejan, Mitrović Vladimir (2010)

  • Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)

    Dejan Radivojević, Ljupko Rundić (2017)
    ... Rundić University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Kamenička 6, 11000 Belgrade, Serbia *corresponding author: dejan.radivojevic@rgf.bg.ac.rs °e Neogene back-arc Pannonian Basin lies in southeastern Europe and extends over several countries. °e area of interest ...
    ... , D. & RUNDIĆ, LJ. (2016): Synrift and postrift Miocene sediments of northern Banat, Ser- bia, Underground Mining Engineering, 28, 39–60. STOJANOVIĆ, K., JOVANČIĆEVIĆ, B., VITOROVIĆ, D., GOLOVKO, Y., PEVNEVA, G. & GOLOVKO, A. (2007): Evaluation of saturated and aromatic hydrocarbons oil–oil maturity ...
    ... 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 53 7th International Workshop | Neogene of Central and South-Eastern Europe TECTONO-LITHOSTRATIGRAPHIC ...

  • Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta

    Vesna Cvetkov (2020)
    ... 23rd EEGS Symposium on the Application of Geop- hysics to Engineering and Environmental Problems, Apr 2010, cp-175-00124. Eppelbaum, L.V. 2015. Quantitative Interpretation of Magnetic Anomalies from Thick Bed, Horizontal Plate and Intermediate Models Under Complex. Archaeological Prospection ...
    ... Antonović, D. Arheološki institut, Beograd: 63-65. Mullins, C. E. 2006. Magnetic suscep- tibility of the soil and its significance in soil science-a review. European Journal of Soil Science 28, 2: 223-246. Mušič, B. 1999. Geophysical prospe- cting in Slovenia: an overview with some observatons related ...
    ... 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 is available at: www.dr.rgf.bg.ac ...

  • Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and redused distances at “Kovilovača“ surface mine

    Lutovac Suzana, Beljić Čedomir, Gligorić Zoran, Gluščević Branko (2015)

  • 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
    ... Excavation of an Unstable Slope by Long term Displacement Monitoring. In Proceedings of the International Conference on Case Histories in Geotechnical Engineering, Chicago, IL, USA, 29 April–4 May 2013; p. 42. 8. Zhang, Q.; Li, S.C.; Li, L.P.; Zhang, Q.Q.; Shi, S.S.; Song, S.G. Numerical Analysis of Advanced ...
    ... is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by / 4.0/). , Aleksandar Milutinovié, Suzana Lutovac and Faculty of Mining and Geology, University of Belgrade, DuSina 7, 11000 Belgrade, Serbia; ...
    ... such as medicine, biology, genetics, finance, engineering and many others [15]. The basic concept of the singular spectrum analysis is well presented in the paper by Hassani et al. [16]. Energies 2021, 14, 3710 5 of 20 According to Equation (2), x and z coordinates of the marker m over time correspond ...

  • Crystal structure of K3EuSi2O7

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu
    ... the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant No. III45007 and III45015); Ministry of Education, Science and Technological Development of the Republic of Serbia & Austria Federal Ministry of Education, Science and Research (project No. 451- ...
    ... REFERENCES 1. J. Felsche, In The Crystal Chemistry of the Rare-Earth Silicates. Rare Earths. Structure and Bonding, Vol. 13, Heidelberg: Springer, Berlin, Germany, 1973 (https://doi.org/10.1007/3-540-06125-8_3) 2. A. Kitai, In Luminescent Materials and Applications, John Wiley & Sons Ltd., Chichester ...
    ... with distilled water and dried in air. Bow-tie aggregate colorless crystals up to 300 μm size embedded in a polycrystalline matrix were observed. X-ray structure determination Selected elongated prismatic colorless single crystal was fixed on glass fiber using nail polish as glue and room-temperature ...

  • Mogućnost infracrvene termografije pri detekciji štetnih gasova

    Stevan Đenadić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković (2021)
    Curenje pojedinih gasova je opasnost koja može da izazove velike nezgode. Često je praćeno požarima i eksplozijama koji za posledicu mogu da imaju kako ljudske povrede, tako i štetan uticaj na ekologiju i ekonomiju. Da bi se izbegle takve situacije, preventivna inspekcija je od presudne važnosti. Curenje većine gasova se ne može uočiti golim okom a za otkrivanje i procenu stepena curenja može se koristiti tehnologija toplotnog snimanja (infracrvena termografija). U datom radu predstavljene su mogućnosti i ograničenja primene ...
    IC termografija, curenje gasa, termogram

  • Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje

    Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović (2021)
    U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.
    proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja
    ... multi-criteria decision-making process. Mining Technology, 111(2), 136-142; [5] Basçetin, A. (2009). The study of decision making tools for equipment selection in mining engineering operations. Gospodarka Surowcami Mineralnymi – Mineral Resource Management, 25, 37-56; [6] Hwang, C. L., & Yoon, K. (1981) ...
    ... interval TOPSIS method” Applied Mathematics and Computation 218(8), pp. 4295–4304, 2011. doi:10.1016/j.amc.2011.10.001; [10] Krohling, R.A., & Pacheco, A.G.C. (2015). A-TOPSIS - An Approach Based on TOPSIS for Ranking Evolutionary Algorithms. Procedia Computer Science, 55, 308–317; image3.png image4.png ...
    ... months of the current year. The analysis was performed in the aspect of reached production, coal quality, effective working time, capacity and time utilization and system stoppage using multicriteria decision–making methods. Ključne reči: proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja ...

  • Technological Solution for Reclamation of Ugljevik East 1

    Pavlović Natalija, Šubaranović Tomislav (2017)