Претрага
687 items
-
Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...... recommendation for the company management is that the activities on maintenance analysis, operation analysis, weak-points analysis, and life cycle analysis adapt to this model, which effectively provides comparative data analysis. The model is easy to use. It can also be used for other systems, with possible ...
... point 3, an availability analysis was obtained based on the time state picture. According to this analysis, availability is the highest for bulldozer B2, which is in accordance with the expert analysis presented here. For the purpose of a more precise comparative analysis of the obtained results, ...
... rated machine is B1. The defined analysis concludes that this machine is the optimal selection, which may be a suggestion for the management of the company in future procurement. O (a) (b) Figure 4. Comparative analysis of all bulldozers availability and analysis according to different models ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
-
The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... different approach of analysis and assessment of energy security; Section 2 explains the rationale and the principles for modeling energy security with the fuzzy–AHP synthesis model for Symmetry 2020, 12, 908 4 of 42 analysis energy security of the gas sector. This section provides analysis of basic steps ...
... also through the fact that there are no needs to build storage. Expert analysis—questionnaires The methodology of analysis of energy scenarios is shown in the next subsection. 2.2. Methodology Steps The methodology of the analysis of the energy scenarios consisted of several basic steps in which it ...
... manage imprecise criteria and the possibility of integrating the analysis of qualitative and quantitative factors. Symmetry 2020, 12, 908 3 of 42 1.2. Energy Security and Fuzzy Theory Fuzzy theory finds its purpose in the analysis and modeling of complex systems, starting from the idea that complex ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
-
Application of MCDA in the determination of optimal block size for open-pit modelling and mine planning
The process of creating a geological block model as the basis for a further detailed design and planning of mining operations is a very responsible task. Errors made during this initial process are transferred to all other phases of the mining project. Certainly, one of the most important decisions for the modelling process is the choice of the appropriate size of the blocks that form the model itself. The determination of the optimal block size is not a simple ...dimenzije minibloka, višekriterijumska analiza, AHP, modeliranje ležišta, planiranje na površinskim kopovimaPetar Marković, Dejan Stevanović, Milica Pešić Georgiadis, Mirjana Banković. "Application of MCDA in the determination of optimal block size for open-pit modelling and mine planning" in Underground Mining Engineering, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2021)
-
Transition pathways of household heating in Serbia: Analysis based on an agent-based model
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 CO2Boban Pavlović, Dejan Ivezić, Marija Živković. "Transition pathways of household heating in Serbia: Analysis based on an agent-based model" in Renewable and Sustainable Energy Reviews, Elsevier BV (2022). https://doi.org/10.1016/j.rser.2022.112506
-
Phase and microstructural study of urinary stones
In this paper we present the phase and morphological characteristics of urinary stones from Serbian patients. The study included for the first time the determination of the phase composition and a statistical analysis of the presence of different types of urinary stones in both men and women in Serbia. The main goal of study was representation of collected data for the first time. For past three years, more than 600 samples were collected from Serbian patients. The phase composition ...бубрежно камење, фазни састав, статистика, рендгенска дифракција праха, скенирајућа електронска микроскопијаMiljana Mirković, Anja Dosen, Suzana Erić, Predrag Vulić, Branko Matović, Aleksandra Rosić. "Phase and microstructural study of urinary stones" in Microchemical Journal, Elsevier BV (2019). https://doi.org/10.1016/j.microc.2019.104429
-
Application of a Complex Hydrodynamic Analysis in Assessing the Feasibility of Increasing Source Yield: Case Study of Podrum Palic (Serbia)
Polomčić Dušan, Parlić Srđan, Ristić-Vakanjac Vesna. "Application of a Complex Hydrodynamic Analysis in Assessing the Feasibility of Increasing Source Yield: Case Study of Podrum Palic (Serbia)" in Conference on Water observation and information system for decision support, 25-29 May 2010 Ohrid, Republic of Macedonia, Skopje, Macedonia:Faculty of civil engineering (2010): 1-10
-
Basic kinematic analysis of rock slope using terrestrial 3D laser scanning on the M-22 highroad pilot site
Marjanović Miloš, Abolmasov Biljana, Đurić Uroš, Zečević Snežana, Šušić Vladimir. "Basic kinematic analysis of rock slope using terrestrial 3D laser scanning on the M-22 highroad pilot site" in Proceedings of the EUROCK 2013 – Rock mechanics for resources, Energy and Environment, 23-26. september 2013., Wroclaw, Poland 2 no. 1, Wroclaw, Poland:Taylor&Francis Group London (2013): 679-683
-
Preliminary analysis and monitoring of the road slope on the M-22 highroad near Ljig in Serbia using LIDAR data
Marjanović Miloš, Abolmasov Biljana, Đurić Uroš, Bogdanović Snežana. "Preliminary analysis and monitoring of the road slope on the M-22 highroad near Ljig in Serbia using LIDAR data" in Proceedings of XII IAEG Congress, Italy, Torino 2 no. 1, :Springer International Publishing (2014): 147-150. https://doi.org/10.1007/978-3-319-09057-
-
Measurement and analysis of blast-induced vibrations in the open pit copper mine „Veliki Krivelj“Bor.
Kričak Lazar, Negovanović Milanka, Janković Ivan, Zeković Dario. "Measurement and analysis of blast-induced vibrations in the open pit copper mine „Veliki Krivelj“Bor." in Proceedings of the XIth National Conference with International Participation of the Open and Underwater Mining of Minerals, Varna , Bulgaria:Scientific and Technical Union of mining, geology and metallurgy (2011): 163-170
-
Parametric analysis of slope stability on the example of municipal waste landfill in Vršac
Basarić Irena, Rakić Dragoslav, Janković Jovana, Bogdanović Snežana, Đurić Tina. "Parametric analysis of slope stability on the example of municipal waste landfill in Vršac" in 10th International conference on topic water and waste reality and challenges, Ohrid: (2018): 233-241
-
Analysis of the impact of blasting on construction facilites and environment in the preparation of the tunnel portal Sarlah near Pirot (south Serbia)
Ravilić Marina, Bogdanović Bojana, Lutovac Suzana, Bajić Sanja, Gaćina Radmila. "Analysis of the impact of blasting on construction facilites and environment in the preparation of the tunnel portal Sarlah near Pirot (south Serbia)" in XXIII International Conference „ECOLOGICAL TRUTH“ ECO-IST15, Kopaonik, Serbia, :University of Belgrade – Technical Faculty in Bor (2015): 212-217
-
Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)
Đoković Nataša, Mitrović Danica, Životić Dragana, Bechtel Achim, Sachsenhofer F. Reinhard, Stojanović Ksenija (2018)Đoković Nataša, Mitrović Danica, Životić Dragana, Bechtel Achim, Sachsenhofer F. Reinhard, Stojanović Ksenija. "Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)" in Geologica Carpatica 69 no. 1, Bratislava:Geological Institute of Slovak Academy of Sciences (2018): 51-70. https://doi.org/10.1515/geoca-2018-0004
-
Application of multiple-criteria decision making analysis in mine development planning
Sanja Bajić, Branko Gluščević, Dragoljub Bajić. "Application of multiple-criteria decision making analysis in mine development planning" in Proceedings of the 8th International Symposium “Mining and Environmental Protection - MEP 2021“, Soko banja, Serbia, September 22 - 25 2021, Belgrade : University of Belgrade, Faculty of Mining and Geology (2021)
-
Quantitative and Geochemical Characterization of the Mokra Karst Aquifer (SE Serbia) by Time Series Analysis and Stochastic Modelling
Branislav Petrović, Veljko Marinović (2023)Branislav Petrović, Veljko Marinović. "Quantitative and Geochemical Characterization of the Mokra Karst Aquifer (SE Serbia) by Time Series Analysis and Stochastic Modelling" in EuroKarst 2022, Málaga - Advances in the Hydrogeology of Karst and Carbonate Reservoirs, Springer International Publishing (2023). https://doi.org/10.1007/978-3-031-16879-6_8
-
Sensitivity analysis of rock mass parameters estimate influence on decline support design using NATM
Slavko Torbica, Veljko Lapčević, Wang Gang, Nemanja Đokić, Miodrag Duranović. "Sensitivity analysis of rock mass parameters estimate influence on decline support design using NATM" in Podzemni radovi (2019). https://doi.org/10.5937/PodRad1934027T
-
Izbor rekultivacionog rešenja površinskog kopa Tamnava Zapadno polje višeatributnom analizom; Selection of the land reclamation option for the Tamnava Zapadno Polje open pit mine by multi-attribute analysis
Dimitrijević Bojan (2013)Dimitrijević Bojan. "Izbor rekultivacionog rešenja površinskog kopa Tamnava Zapadno polje višeatributnom analizom; Selection of the land reclamation option for the Tamnava Zapadno Polje open pit mine by multi-attribute analysis" in Zbornik radova 6. Međunarodna konferencija UGALj 2013 no. VI, Zlatibor, Srbija:Jugoslovenski Komitet za površinsku eksploataciju Saveza inženjera rudarstva i geologije Srbije (2013): 37-42
-
Analysis of crack displacements on residential structure induced by blasting and earthquake vibrations and daily changes of temperature and relative humidity.
Kričak Lazar, Negovanović Milanka, Janković Ivan, Zeković Dario, Mitrović S.. "Analysis of crack displacements on residential structure induced by blasting and earthquake vibrations and daily changes of temperature and relative humidity." in Proceedings of International Conference on Damage Mechanics-ICDM, Beograd, Srbija:Serbian Chamber of Engineers, Faculty of Civil Engineering (2012): 181-184
-
Analysis of Method for Determination of the Rock Mass Oscillation Equation Parameters in the Nepričava open pit
Lutovac Suzana, Gluščević Branko, Tokalić Rade, Majstorović Jelena, Beljić Čedomir. "Analysis of Method for Determination of the Rock Mass Oscillation Equation Parameters in the Nepričava open pit" in 6th International Symposium MINING AND ENVIRONMENTAL PROTECTION, Vrdnik, Serbia, 21-24.06.2017, Belgrade:Faculty of Mining and Geology, CENTER FOR ENVIRONMENTAL INGENEERING (2017): 317-323
-
Analysis of Blasting Impacts at the Open Pit Manastiriste near Topola on the Monastery Complex
Lutovac Suzana, Bajić Sanja, Gaćina Radmila, Urošević Katarina. "Analysis of Blasting Impacts at the Open Pit Manastiriste near Topola on the Monastery Complex" in Mining and Metallurgy Engineering Bor no. 2, Bor:Mining and Metallurgy Institute Bor (2016): 9-19. https://doi.org/10.5937/MMEB1602009B
-
Scanning Electron Microscopy Coupled with Energy Dispersive Spectrometric Analysis Reveals for the First Time Weddellite and Sylvite Crystals on the Surface of Involucral Bracts and Petals of two Xeranthemum L. (Compositae) Species
Milan Gavrilović, Suzana Erić, Petar Marin, Núria Garcia-Jacas, Alfonso Susanna, Pedja Janaćković (2017)Milan Gavrilović, Suzana Erić, Petar Marin, Núria Garcia-Jacas, Alfonso Susanna, Pedja Janaćković. "Scanning Electron Microscopy Coupled with Energy Dispersive Spectrometric Analysis Reveals for the First Time Weddellite and Sylvite Crystals on the Surface of Involucral Bracts and Petals of two Xeranthemum L. (Compositae) Species" in Microscopy and Microanalysis 23 no. 3, :Cambridge University Press (2017): 679-686