Претрага
738 items
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A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia)
Šubaranović Tomislav, Polomčić Dušan, Pavlović Vladimir, Pakić N. "A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia)" in Proceedings on CD-ROM [Elektronski izvor]. Vol. 1-2 / 11th International Conference Research and Development in Mechanical Industry - RaDMI 2011, 15-18. September 2011, Sokobanja, Serbia, Vrnjačka Banja:Scientific and Technical Center for Intellectual Property (2011): 1257-1265
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2D geological-geophysical model of the Timok Complex (Serbia, SE Europe): A new perspective from aeromagnetic and gravity data
Ignjatović Snežana, Vasiljević Ivana, Burazer Milenko, Banješević Miodrag, Strmbanović Ivan, Cvetković Vladica (2014)Ignjatović Snežana, Vasiljević Ivana, Burazer Milenko, Banješević Miodrag, Strmbanović Ivan, Cvetković Vladica. "2D geological-geophysical model of the Timok Complex (Serbia, SE Europe): A new perspective from aeromagnetic and gravity data" in Swiss Journal of Geosciences 107 no. 1, Basel:Birkhaeuser Verlag AG (Birkhäuser Basel) (2014): 101-112. https://doi.org/10.1007/s00015-014-0161-0
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Development of a fuzzy model for predicting the penetration rate of tricone rotary blasthole drilling in open pit mines
Kričak Lazar, Negovanović Milanka, Mitrović Stojan, Miljanović Igor, Nurić Samir, Nurić Adila (2015)Kričak Lazar, Negovanović Milanka, Mitrović Stojan, Miljanović Igor, Nurić Samir, Nurić Adila. "Development of a fuzzy model for predicting the penetration rate of tricone rotary blasthole drilling in open pit mines" in The Journal of the Southern African Institute of Mining and Metallurgy 115 no. 11, Johannesburg, The South African Republic:The Southern African Institute of Mining and Metallurgy (2015): 1065-1071. https://doi.org/10.17159/2411-9717/2015/v115n1
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... 15 of 18 Model 2 v2 = 50.4220R−1.3730 (56) Model 3 Table 6 shows the data for calculating the parameters of rock masses oscillation equation in Nepričava open pit according to Model 3. Table 6. Representation of data for calculating the parameters in Nepričava open pit according to Model 3. Ri xi ...
... values obtained by experimental measurements. 3.3.1. Model 1—Determining the Parameters by Applying the Least Square Method The Least Square Method is mainly used to obtain the parameters K and n which represents a common model [9,10]. 3.3.2. Model 2—Determining the Parameters through the Application ...
... n of rock masses oscillation velocity in Majdanpek open pit. Model 2 v2 = 158.5234R−1.8568 (45) Model 3 Table 2 shows the data for calculating the parameters of rock masses oscillation equation in Majdanpek open pit according to Model 3. Minerals 2018, 8,70 10 of 18 Table 1. Survey of blasting ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Preliminary regional landslide susceptibility assessment using limited data
Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...... ity model. Extraction of a particular land- slide conditioning parameter and repetition of the validation pro- cess is one approach to test model sensitivity (LEE & TALIB, 2005; GUZZETTI et al., 2006). Other approaches for testing the sensitivity of a particular landslide susceptibility model (and ...
... 77 % of the total landslides mapped. A landslide susceptibility model with the lowest percent of landslides in classes with very high and high susceptibility is the WAP-TLSR-100. According to this model 58.75% of the region’s Model Susceptibility class Value of W-TLSR Area (km2) Area (%) ...
... Total Landslide Susceptibility Rating (TLSR) model is obtained by summing the individual rating points of each parameter and divid- ing the region into five susceptibility zones according to Jenks natural breaks classification. Ver- ification of the TLSR model is then performed by overlaying the landslide ...Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska. "Preliminary regional landslide susceptibility assessment using limited data" in Geologica Croatica , Croatian Geological Society (2019). https://doi.org/10.4154/gc.2019.03
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Regional rockfall exposure assessment, experience from Serbia
Rockfalls are common in hilly and mountainous areas, especially along roads with engineered slopes and cuts. Such is the case for most of the state and local road routes in Central, Serbia, which was the subject in this case study. A road network of 276 km covering roughly 1700 km2 between the cities of Kraljevo, Čačak and Ivanjica is presented. Assessing of such wide areas needs to be conducted from large to site-specific scale, i.e., using GIS spatial tools ...Miloš Marjanović, Biljana Abolmasov, Uroš Đurić, Jelka Krušić, Snežana Bogdanović. "Regional rockfall exposure assessment, experience from Serbia" in 5th Regional symposium on landslides in Adriatic–Balkan Region, 23-26 March 2022, Faculty of Civil Engineering, University of Rijeka and Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb (2022)
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INVENTS: A Hybrid Mine Ventilation Planning and Design System
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... diagrams architecture. This architecture supports the object-oriented approach in model development for complex applications. Its main characteristic is the separation of domain model and user interface. The domain model is represented by business services and data services, while the user interface ...
... linear ventilation scheme. In figure 7 an activity diagram depicts the dynamic model of the Simulation-Fire class that encompasses characteristic procedures in the execution of logic for the airflow calculation model in the conditions of fire incidence in complex mine ventilation networks. NetMain ...
... the SimVent data service: Baza and BazaSimVent, which represent modules. In view of the complexity of the INVENTS system’s global model data structure, which had to model all relevant parameters of complex mine ventilation networks, the design and realization of database was executed in the MSAccess ...Lilić Nikola, Stanković Ranka, Obradović Ivan. "INVENTS: A Hybrid Mine Ventilation Planning and Design System" in Proceedings of International Scientific Conference of FME Session 4: Automation Control and Applied Informatics , Hong Kong : iConcept Press (2013)
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INVENTS: a hybrid system for subsurface ventilation analysis
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... diagrams architecture. This architecture supports the object-oriented approach in model development for complex applications. Its main characteristic is the separation of domain model and user interface. The domain model is represented by business services and data services, while the user interface ...
... linear ventilation scheme. In figure 7 an activity diagram depicts the dynamic model of the Simulation-Fire class that encompasses characteristic procedures in the execution of logic for the airflow calculation model in the conditions of fire incidence in complex mine ventilation networks. NetMain ...
... the SimVent data service: Baza and BazaSimVent, which represent modules. In view of the complexity of the INVENTS system’s global model data structure, which had to model all relevant parameters of complex mine ventilation networks, the design and realization of database was executed in the MSAccess ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "INVENTS: a hybrid system for subsurface ventilation analysis" in Proc. of International Scientific Conference of FME, September 2000, Ostrava, FME (2000)
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Model of room and pillar production planning in small scale underground mines with metal price and operating cost uncertainty
Gligorić Zoran, Gligorić Miloš, Dimitrijević Bojan, Grozdanović Ines, Milutinović Aleksandar, Ganić Aleksandar, Gojković Zoran (2018)Gligorić Zoran, Gligorić Miloš, Dimitrijević Bojan, Grozdanović Ines, Milutinović Aleksandar, Ganić Aleksandar, Gojković Zoran. "Model of room and pillar production planning in small scale underground mines with metal price and operating cost uncertainty" in Resources Policy, The International Journal of Minerals Policy and Economics, Amsterdam, Holandija:Elsevier (2018)
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Оптимизација управљања процесима рекултивације површинских копова угља
Bojan S. Dimitrijević (2014-05-30)Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење... више мултикритеријумских модела, у зависности према начину укључивања доносиоца одлуке (ДО) у поступак [4, 35, 14]. 1. Модели за одређивање неинфериорних решења 2. Модели са унапред израженим преференцијалом 3. Интерактивни модели 4. Стохастички модели 5. Модели компромисног програмирања ...
... односно математички модел. Ако математички модел добро репрезентује проблем, тада ће и решење добијено помоћу модела бити добро решење датог проблема. У инжењерској пракси планирања система користи ce прилаз дискретних модела када ce, уместо израде свеобухватног математичког модела, пројектују варијантна ...
... површинских копова као истраживачких полигона изабран је модел PROMETHEE. Без улажења у анализу и оцену вишеатрибутних модела, при избору модела превагу је имало искуство у његовом коришћењу, постигнути резултати и уграђеност у PROMETHEE модел шест генерализованих критеријума за исказивање преференција ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
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Novel Hybrid MPSI–MARA Decision-Making Model for Support System Selection in an Underground Mine
objektivne težine kriterijuma, MPSI metoda, višekriterijumsko odlučivanje, MARA metoda, izbor sistema podgrade, podzemna eksploatacijaMiloš Gligorić, Zoran Gligorić, Suzana Lutovac, Milanka Negovanović, Zlatko Langović. "Novel Hybrid MPSI–MARA Decision-Making Model for Support System Selection in an Underground Mine" in Systems, MDPI AG (2022). https://doi.org/10.3390/systems10060248
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Long-term planning methodology for improving wood biomass utilization
The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković. "Long-term planning methodology for improving wood biomass utilization" in Energy, Elsevier BV (2019). https://doi.org/10.1016/j.energy.2019.03.105
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Improving efficiency of thermal power plants through mine coal quality planning and control
Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja. "Improving efficiency of thermal power plants through mine coal quality planning and control" in Thermal Science, Vinča Institute of Nuclear Sciences (2018). https://doi.org/10.2298/TSCI170605209B
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Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ
Цвјетко С. Сандић (2022)Територија Републике Српске је у посљедних десетак година веома угрожена активирањем нових и реактивирањем старих клизишта. Она својим дјеловањем наносе огромне материјалне штете, па и људске жртве, те је неопходно озбиљније третирање и дјеловање у борби са овим природним хазардом. Чест проблем јесте одговорност, тј. надлежност институција из ове области и недостатак у законској регулативи која готово никако или само површно обрађује област хазарда и ризика од клизишта. Усљед непостојања праксе и усвојених методологија које су у примјени у свијету, циљ ...Цвјетко С. Сандић. Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ, Београд : [Ц. Сандић], 2022
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... integrated fuzzy model for mine management optimization Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Development of integrated fuzzy model for mine management ...
... to facilitate decision making with a fuzzy optimization model. Scores are entered and pairs compared in the application, and otherwise extensive mathematical calculations are simplified. It is also easy to monitor the sensitivity of the model to input parameter variation. On a much higher level ...
... Comptes rendus de PAcadćmie bulgare des Sciences Tome 76, No 9, 2023 ENGINEERING SCIENCES Mining engineering DEVELOPMENI OF IN TEGRATED FUZZY MODEL FOR MINE MANAGEMENT OPTIMIZATION Miodrag Čelebić*, Sanja Bajić**, Dragoljub Bajić***", Dejan Stevanović**, Duško Torbica*, Vladimir Malbašić* ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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Zaštita od miniranja
Suzana Lutovac, Miloš Gligorić (2024)Suzana Lutovac, Miloš Gligorić. Zaštita od miniranja, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
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Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons
U ovom radu sagledana je primena hidrodinamičke analize u okviru odabrane remedijacione metode ,,pumpanja i tretiranja” kontaminiranih podzemnih voda ugljovodonicima, na primeru pretakališta rafinerije nafte u Pančevu. Primenjena hidrodinamička analiza predstavlja pravilan, a sve češće i neophodan pristup u savremenoj hidrogeologiji. Prethodnim hemijskim analizama uzoraka tla i podzemnih voda na istražno-osmatračkim objektima detektovano je zagađenje produktima nafte. Novoizvedena istraživanja obuhvatila su izvođenje 12 pijezometara različitih dubina, geoelektrično sondiranje tla, ,,in situ” merenja prisutnog kontaminanta, izdvojenog kao hidrofobna faza LNAPL, ...Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić. "Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2018). https://doi.org/10.5937/tehnika1706825P
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Threshold-induced correlations in the Random Field Ising Model
... correlations in the Random Field Ising Model Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Threshold-induced correlations in the Random Field Ising Model | Sanja Janićević, Dragutin Jovković ...
... Random Field Ising Model Sanja Janićević1, Dragutin Jovković1, Lasse Laurson 2,3 & Djordje Spasojević1 We present a numerical study of the correlations in the occurrence times of consecutive crackling noise events in the nonequilibrium zero-temperature Random Field Ising model in three dimensions ...
... random uncorrelated process. �e Random Field Ising model (RFIM)1,2 has a great signi�cance for studies of the e�ect of disorder in the ferro- magnetic hysteresis3 and the Barkhausen e�ect4–7. In athermal (T = 0) and nonequilibrium case, the model has a disorder induced transition8–10 in dimensions ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Preliminary impact assessment of No2 emission from a heating plant on air pollution: case of Zemun, Serbia
The aim of this paper is to provide a preliminary evaluation of the impact caused by NO2 emissions from a heating plant on the local air quality. To model the spatial distribution of NO2 emissions from the heating plant, the AERMOD model was employed. The evaluation was conducted by analyzing and contrasting the simulated NO2 concentration from the heating plant with the overall NO2 concentration recorded at the nearest monitoring station over the entire heating season. The study focused ...Boban Pavlović, Uroš Pantelić, Marija Živković, Dejan Ivezić. "Preliminary impact assessment of No2 emission from a heating plant on air pollution: case of Zemun, Serbia" in Environmental Engineering and Management Journal (2023). https://doi.org/10.30638/eemj.2023.086