Претрага
330 items
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Application of the VIKOR and FAHP multi-criteria optimisation methods for choosing the optimal groundwater control system: case of pumping station Bezdan 1 (Serbia)
Bajić Dragoljub, Polomčić Dušan, Ristić Vakanjac Vesna, Ratković Jelena, Čokorilo Ilić Marina (2017)Bajić Dragoljub, Polomčić Dušan, Ristić Vakanjac Vesna, Ratković Jelena, Čokorilo Ilić Marina. "Application of the VIKOR and FAHP multi-criteria optimisation methods for choosing the optimal groundwater control system: case of pumping station Bezdan 1 (Serbia)" in Proceedings of the national conference with international participation „Geosciences 2017“, Sofia:Bulgarian Geological Society (2017): 131-132
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An overview of the application of modern methods of hydrodynamic calculations for groundwater control systems of open cast mines in Serbia
Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Ristić Vakanjac Vesna, Čokorilo Ilić Marina (2017)Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Ristić Vakanjac Vesna, Čokorilo Ilić Marina. "An overview of the application of modern methods of hydrodynamic calculations for groundwater control systems of open cast mines in Serbia" in Proceedings of the national conference with international participation „Geosciences 2017“, Sofia:Bulgarian Geological Society (2017): 143-144
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Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes
... probability (P) and the measure of loss (L) it inflicts: R = f(P, L) (1) Energies 2016, 9, 1071 6 of 20 Actualization of a risk event in a mining and energy complex leads to heavier or smaller economic loss, but also to serious consequences for the environment or loss as non-economic measure [22]. ...
... mining and energy complexes are the prerequisite for quality organization of preventive measures of environmental protection, for reduction of financial loss due to amelioration of the effects, and for minimization of the time to complete the tasks of the environmental management system. The problem with ...
... was implemented through the network of automatic stations for monitoring air quality, in accordance with the Decree on establishing the Air Quality Control Program in the state network and in local networks of area monitoring. Automatic monitoring was conducted for measuring the concentration of sulfur ...Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović . "Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes" in Energies (2016). https://doi.org/https://doi.org/10.3390/en9121071
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Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija... confirms the presence of quartz (river sand) and or silicate fume (SiO2) [35]. In this temperature interval (200–600 ◦C) determined mass loss by TG analysis was 3.11%. Weight loss in the third temperature interval (600–800 ◦C) of 2.35% and the endothermic peak at 727 ◦C, is caused by the decomposition of the ...
... replacement for cement. Namely, the results showed that the lack of slag in terms of the content of SiO2, Al2O3, Fe2O3, and unburned carbon, and the loss of ignition, may be overcome by the thermal treatment of the slag prior to use, up to 650 ◦C. Results also showed that other physical– chemical cha ...
... dehydration and decomposition of the hydrates of the silicate-oxides, as well as calcium silicate-oxides [34]. This process has been followed with a weight loss of around 2.60% on the TGA curve. In the second temperature interval (200–600 ◦C) endothermic peaks are observed at 373, 460, and 573 ◦C. The peaks ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points
Milica Stepanović, Dragoljub Bajić, Dušan Polomčić. "Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points" in Comptes rendus de l'Académie Bulgare des Sciences, "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences (2021). https://doi.org/10.7546/CRABS.2021.08.09
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Development Of The Serbian Geological Resources Portal
... at http://geoliss.rgf.rs/index.php?page=atlas, was created with the use of Adobe flash plug-in Zoomify, which enables zooming in real-time, without loss of image quality. Multimedia part of the web portal The part of the web portal pertaining to geoheritage and geodiversity of North-Western Serbia ...
... pages for database search. Web GIS For several projects online GIS maps were created with the ArcGIS extension: HTML ImageMapper NG2, allowing full control over cartographic quality and functionality. This approach was implemented for small to medium sized GIS Projects, whose geo data have little need ...Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić. "Development Of The Serbian Geological Resources Portal" in Proceedings of the 17th Meeting of the Association of European Geological Societies, Belgrade, Serbia : The Serbian Geological Society (2011)
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Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry
Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalizationSteven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti. "Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry" in SSRN Electronic Journal, Elsevier BV (2021). https://doi.org/10.2139/ssrn.3945979
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Approach to operational mine planning: Case study Tamnava West
... homogenization process), is of critical importance for managing successful coal quality control and meeting criteria of power plant. This paper investigates advantage of proper operational planning on coal quality control process and overall production performance. For better understanding case study is ...
... - equipment limitations - coal quality control, etc. All this factors are analyzed for purpose of bench design for case of Tamnava West. Special attention was paid to the aspect of selective excavation. In this way the first step of quality control is performed. Bench surfaces designed in ...
... technology, as is the case of Tamnava-West coal pit. The coal quality control management is of vital importance for successful production since coal mine and power plant objectives are strongly connected. Coal quality control is complex and comprehensive problem which depends of many factors ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... representative sample of material, before annealing, firstly sieve and separate into two fractions: finer and larger of 20 mm. 107 Thereafter, loss of material is determined, particularly on particles smaller than 20 mm and particularly on particles larger than 2Omm, during three phases of ...
... content change in relation to the depth of taken sample. The first phase means heating at a temperature of 55"% to constant mass. In this stage, loss of mass compared to a constant mass is defined as moisture (W). Thereafter, samples are heated to a temperature of 105%C and again masses of ...
... obtained on particles smaller than 20 mm, Zekkos method for determination of organic matter content was used, which determined percentage mass loss for different materials (paper, wood, plastic) after annealing at 440"C (Zekkos et al.,2006). The percentage content of individual materials was ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
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Implementataion of the modern technologies in order to control the drilling an blasting works
U ovom radu prikazanе su mogućnosti primene savremenih tehnologija u oblasti bušenja i miniranja pri površinskoj eksploataciji ležišta mineralnih sirovina, problemi koji se javljaju prilikom izvođenja radova, kao i moguća rešenja i prednosti primene ovih tehnologija.Miljan Gomilanović, Stefan Milanović, Nikola Stanić, Aleksandar Doderović, Nikola Simić. "Implementataion of the modern technologies in order to control the drilling an blasting works" in Copper, Bor : Institut za rudarstvo i metalurgiju Bor (2018)
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Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... _ Paragonite 4 – - (Baccour et al., 2008) as a *dark-firing' ceramic body (Dondi et al., 2001; Milošević & Logar, 2017). The relatively large loss on ignition (LOI; 15.86%) may be related to dehydroxylation of hydrated minerals or hydroxides, oxidation of organic materials and decomposition ...
... investigated samples show a couple of endothermic peaks (Fig. 5). The first significant endothermic peak at between 120% and 220%C is associated with the loss of adsorbed and interlayer water and indicates the presence of layered silicates such as illite, kaolinite, halloysite and/or mont- morillonite ...
... C. Mackenzie, editor). London, UK. Mineralogical Society. Grim R.E. & Rowland R.A. (1944) Differential thermal analysis of clays and shales, control and prospecting method. Journal of the American Ceramic Society, 27, 65–76. Joussein E., Petit S., Churchman J., Theng B., Righi D. & Delvaux B ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... the tunnel and at the control gate was conducted while the tunnel was out of operation. Water 2019, 11, 603 4 of 10 Summary losses of the fully charged tunnel were monitored at the control gate following the standard procedure [12], by maintaining the water level at the control gate for one hour and ...
... (approx 15 m distant), a control gate (water losses), springs, and a stream in the vicinity of the tunnel. Areas of the potential hydraulic instability were indicated by synchronous measurements of water level and temperature changes in the observation wells and at the control gate. While the tunnel was ...
... (approx 15 m distant), a control gate (water losses), springs, and a stream in the vicinity of the tunnel. Areas of the potential hydraulic instability were indicated by synchronous measurements of water level and temperature changes in the observation wells and at the control gate. While the tunnel was ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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A treatise about reliability in dating events of evolutionary history of brown trout Salmo cf. trutta (Actinopterygii) at Western Balkans: Impassable barriers, isolation of populations and assistance of geological timeframe
Ana Marić, Danica Srećković Batoćanin, Dubravka Škraba Jurlina, Miloš Brkušanin, Jelena Karanović, Tamara Kanjuh, Vera Nikolić, Danilo Mrdak, Predrag Simonović (2023)Distribucija različitih haplotipova pastrmke u zavisnosti od geoloških dogadjaja.Ana Marić, Danica Srećković Batoćanin, Dubravka Škraba Jurlina, Miloš Brkušanin, Jelena Karanović, Tamara Kanjuh, Vera Nikolić, Danilo Mrdak, Predrag Simonović. "A treatise about reliability in dating events of evolutionary history of brown trout Salmo cf. trutta (Actinopterygii) at Western Balkans: Impassable barriers, isolation of populations and assistance of geological timeframe" in Acta Ichthyologica et Piscatoria, Pensoft Publishers (2023). https://doi.org/ 10.3897/aiep.53.97702
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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016-01-13)U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže... Supervisory control at Salvador flotation columns. Minerals Engineering Vol. 12, No. 7, pp. 733–744 19. Bergh, L.G., Yianatos J.B., 2011. The long way toward multivariate predictive control of flotation processes. Journal of Process Control 21, pp. 226–234 20. Bergh, L., Yianatos J., 2013. Control of rougher ...
... Hodouin, D., 2011. Methods for automatic control, observation, and optimization in mineral processing plants. Journal of Process Control 21, pp. 211–225 109. Holkar, K.S., Waghmare, L.M., 2010. An Overview of Model Predictive Control. International Journal of Control and Automation, Vol. 3 No. 4, pp. 47–63 ...
... . The purpose of the flotation process control is precisely the optimization of the concentrate grade and recovery, while maximizing profits. Consequently, research into the modelling and control of this process have always been an important area in control engineering practice. Theoretical research ...Ivana M. Jovanović. "Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-01-13)
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Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya
Fandi Emad I. M., Leković Branko, Gazal Badees, Elhaddad Elnori, Al Saghr Abdulbaset. "Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya" in Acta Montanistica Slovaca 23 no. 3, Košice:Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG), Technical University of Kosice (2018): 245-259
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Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya
Fandi Emad I. M., Leković Branko, Gazal Badees, Elhaddad Elnori, Al Saghr Abdulbaset. "Implemented Stage Fracturing Technique To Improve Oil Production In Nubian Sandstone Of North Gialo, Libya" in Acta Montanistica Slovaca 23 no. 3, Košice:Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG), Technical University of Kosice (2018): 245-259
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Geochemical and Sedimentation History of Neogene Lacustrine Sediments from the Valjevo-Mionica Basin (Serbia)
Šajnović Aleksandra, Stojanović Ksenija, Simić Vladimir, Jovančićević Branimir. "Geochemical and Sedimentation History of Neogene Lacustrine Sediments from the Valjevo-Mionica Basin (Serbia)" in Geochemistry - Earth's System Processes, San Francisco State University, United States:Intech: The international journal of instrumentation and control, The Instrumentation, Systems and Automation Society (2012): 1-26. https://doi.org/10.5772/32180
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Maximizing the net present value by applying an optimal cut-off grade for long-term planning of the copper open pits
Kržanović Daniel, Kolonja Božo, Stevanović Dejan. "Maximizing the net present value by applying an optimal cut-off grade for long-term planning of the copper open pits" in Acta Montanistica Slovaca 20 no. 1, Kosice:Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG), Technical University of Kosice (2015): 49-61
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Modern self-propelled surface drill rigs for drilling small diameter holes in mining and construction operations
Milanka Negovanović, Lazar Kričak (2021)Приликом одређених рударских или грађевинских радова потребно је извршити минирање применом бушотина малог пречника. Раније, бушење бушотина малих пречника се изводило углавном ручним бушилицама или лаким лафетним бушилицама нa одређеним нoсачима. Проблеми у овим случајевима били су капацитет бушења, бушење већих дужина бушотина и посебно безбедност оператера на неприступачним теренима, где је његово присуство било неопходно. Данас постоје модерне самоходне бушилице за бушење минских бушотина малог пречника, које су у потпуности даљински управљане. Радио даљинска контрола омогућава да се ...Бушилице,бушотине малог пречника, бушење, минирање,изградња,минирање негабарита, радио даљинска контролаMilanka Negovanović, Lazar Kričak . "Modern self-propelled surface drill rigs for drilling small diameter holes in mining and construction operations" in 8th International Conference Mining And Environmental Protection, Sokobanja, 22 – 25th September 2021 SERBIA,, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)