Претрага
1259 items
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Hybrid Stochastic-Grey Model to Forecast the Behavior of Metal Price in the Mining Industry
Zoran Gligorić, Miloš Gligorić, Dževdet Halilović, Čedomir Beljić, Katarina Urošević. "Hybrid Stochastic-Grey Model to Forecast the Behavior of Metal Price in the Mining Industry" in Sustainability (2020). https://doi.org/10.3390/su12166533
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Hybrid model of evaluation of underground lead–zinc mine capacity expansion project using Monte Carlo simulation and fuzzy numbers
Gligorić Zoran, Beljić Čedomir, Gluščević Branko, Jovanović Saša. "Hybrid model of evaluation of underground lead–zinc mine capacity expansion project using Monte Carlo simulation and fuzzy numbers" in Simulation: Transactions of the Society for Modeling and Simulation International 8 no. 87, :Sage Science Press (UK) ^Subsidiary of: Sage Publications, Inc. (2011): 726-742. https://doi.org/10.1177/0037549711410902
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Application of the autoregressive model, grey model and biplot method to groundwater sources
Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić. "Application of the autoregressive model, grey model and biplot method to groundwater sources" in Proceedings of the XVIII Serbian Geological Congress, Divčibare, Serbia, 01-04 June 2022, Serbian Geological Society (2022)
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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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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. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and redused distances at “Kovilovača“ surface mine" in 5th International Symposium MINING AND ENVIRONMENTAL PROTECTION, Vrdnik, Serbia, Belgrade:University of Belgrade, Faculty of Mining and Geology (2015): 376-384
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Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry
Multiple criteria decision making (MCDM) is a supporting tool which is widely spread in different areas of science and industry. Many researchers have confirmed that MCDM methods can be useful for selecting the best solution in many different problems. In this paper, two novel methods are presented and applied on existing decision-making processes in the mining industry. The first method is multiple criteria ranking by alternative trace (MCRAT) and the second is ranking alternatives by perimeter similarity (RAPS). These ...Katarina Urošević, Zoran Gligorić, Igor MIljanović, Čedomir Beljić, Miloš Gligorić. "Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry" in Mathematics, MDPI (Basel, Switzerland) (2021). https://doi.org/10.3390/math9161980
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Steel Arch Support Deformations Forecast Model Based on Grey–Stochastic Simulation and Autoregressive Process
Relatively large deformations of the steel arch support in underground coal mines in the Republic of Serbia present one of the main problems for achieving the planned production of coal. Monitoring of the critical sections of the steel arch support in the underground roadways is necessary to gather quality data for the development of a forecasting model. With a new generation of 3D laser scanners that can be used in potentially explosive environments (ATEX), deformation monitoring is facilitated, while ...čelična podgrada, prognoza deformacija, vremenske serije, grey-stohastička simulacija, autoregresija, podzemni rudnik ugljaLuka Crnogorac, Suzana Lutovac, Rade Tokalić, Miloš Gligorić, Zoran Gligorić. "Steel Arch Support Deformations Forecast Model Based on Grey–Stochastic Simulation and Autoregressive Process" in Applied Sciences, MDPI AG (2023). https://doi.org/10.3390/app13074559
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Multi-Criteria Fuzzy-Stochastic Diffusion Model of Groundwater Control System Selection
When considering data and parameters in hydrogeology, there are often questions of uncertainty, vagueness, and imprecision in terms of the quantity of spatial distribution. To overcome such problems, certain data may be subjectively expressed in the form of expert judgment, whereby a heuristic approach and the use of fuzzy logic are required. In this way, decision-making criteria relating to an optimal groundwater control system do not always have a numerical value. Groundwater control scenarios (alternatives) are identified through hydrodynamic ...expert judgment, linguistic variables, fuzzy dynamic TOPSIS, hydrogeology, groundwater control system, open-cast mine, geometric Brownian motionDušan Polomčić, Zoran Gligorić, Dragoljub Bajić, Miloš Gligorić, Milanka Negovanović. "Multi-Criteria Fuzzy-Stochastic Diffusion Model of Groundwater Control System Selection" in Symmetry, MDPI AG (2019). https://doi.org/10.3390/sym11050705
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Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm
Information about the relative importance of each criterion or the weights of criteria can have a significant influence on the ultimate rank of alternatives. Accordingly, assessing the weights of criteria is a very important task in solving multi-criteria decision-making problems. Three methods are commonly used for assessing the weights of criteria: objective, subjective, and integrated methods. In this study, an objective approach is proposed to assess the weights of criteria, called SPC method (Symmetry Point of Criterion). This point ...Вишекритеријумско одлучивање, тежине критеријума, тачка симетрије критеријума, налазиште минерала, алгоритам, процена учинкаZoran Gligorić, Miloš Gligorić, Igor Miljanović, Suzana Lutovac, Aleksandar Milutinović. "Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm" in Computer Modeling in Engineering & Sciences (2023). https://doi.org/10.32604/cmes.2023.025021
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Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields
Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić. "Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields" in Geologia Croatica, Hrvatski geološki institut (2022). https://doi.org/10.4154/gc.2022.14
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Fuzzy Model for Selection of Underground Mine Development System in a Bauxite Deposit
Jovanović Saša, Gligorić Zoran, Beljić Čedomir, Gluščević Branko, Cvijović Čedomir. "Fuzzy Model for Selection of Underground Mine Development System in a Bauxite Deposit" in Arabian Journal for Science and Engineering (AJSE) 6 no. 39, :Springer Publishing (2014): 4529-4539. https://doi.org/AJSE-D-13-00220R3
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Coal production in Serbia, the social aspects and making strategic decision support
Beljić Čedomir, Ristović Ivica, Gligorić Zoran, Gluščević Branko, Tomašević Aleksandra. "Coal production in Serbia, the social aspects and making strategic decision support" in 3rd International Conference Economics and Management-Based on New Technologies EMoNT 2013, Vrnjačka Banja : (2013): 107-111
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Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion
Gligorić Zoran, Kričak Lazar, Beljić Čedomir, Lutovac Suzana, Milojević J.. "Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion" in Journal of Applied Mathematics, :Hindawi Publishing Corporation (2014)
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Multi - Attribute Technological Modeling of Coal Deposits Based on the Fuzzy TOPSIS and C - mean Clustering Algorithms
Gligorić Miloš, Gligorić Zoran, Beljić Čedomir, Torbica Slavko, Štrbac-Savić Svetlana, Nedeljković Jasmina (2016)Gligorić Miloš, Gligorić Zoran, Beljić Čedomir, Torbica Slavko, Štrbac-Savić Svetlana, Nedeljković Jasmina. "Multi - Attribute Technological Modeling of Coal Deposits Based on the Fuzzy TOPSIS and C - mean Clustering Algorithms" in Energies 9 no. 12, Basel:MDPI AG, Basel, Switzerland (2016). https://doi.org/10.3390/en9121059
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Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes
Svetlana Štrbac Savić, Jasmina Nedeljković Ostojić, Zoran Gligorić, Čedomir Cvijović, Snežana Aleksandrović (2015)Svetlana Štrbac Savić, Jasmina Nedeljković Ostojić, Zoran Gligorić, Čedomir Cvijović, Snežana Aleksandrović. "Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes" in Mathematical Problems in Engineering (2015). https://doi.org/10.1155/2015/610307
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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... of the vector U(i) j (i = 1, . . . , M); select the number of r eigentriples for the reconstruction stage that can also be used for forecasting purposes; define matrix U∇M = ( U∇M 1 , . . . , U∇M r ) , where U∇M j is as follows: U∇M j = U(1)∇ j ... U(M)∇ j , (10) define matrix W as ...
... marker m over time correspond to one channel time series. If we take into consideration the total number of markers is M, then we are faced with an M-channel time series. Consider an M-channel time series with a series length of Ni; V(i) Ni = ( v(i)1 , . . . , v(i)Ni ) , (i = 1, . . . , M), where ...
... coordinates of the marker m over time correspond to one channel time series. If we take into consideration the total number of markers is M, then we are faced with an M-channel time series. Consider an M-channel time series with a series length of N;; Vy = (o!’, Leey oN), (i=1, ...,M), where N is the time ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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Primena programa UVSZ pri zaštiti od miniranja
Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske... od miniranja Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Primena programa UVSZ pri zaštiti od miniranja | Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac ...
... Channel 2 Channet input Geo Input Geo Input lUnit mm/s lUnit mm/s Unit [Trig level 05 Trig level 05 Trig level Pk 0.588 Pk 0.839 Pk Diff m/s2 0.113 Diff ms2 0.143 Diff m/s2 linteg pm 8.51 Iinteg pm 5.65 Integ um Frq(zx) Hz 25.9 Frq(zx) Hz 26.2 Frq(zx) Hz (s]_ 4 5 0.50 Slika 2: Velosigram promene brzine ...
... septembra 2021, sa https://americasguidelin.cdn.triggerfish.cloud/uploads/2016/03/Vibraloc.pdf [2] Baulovi , J., Pandula, B., Kondela, J., & Prekopová, M. (2019). Optimizing the seismic effects of blasting in quarries by timing, High Energy Materials, 11 (2), 48 − 62. DOI: 10.22211/matwys/0178 ISSN 2083-0165 ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić. "Primena programa UVSZ pri zaštiti od miniranja" in XIII skup privrednika i naučnika SPIN’21, Industrija 4.0 – mogu nosti, izazovi i rešenja za digitalnu transformaciju privrede, Univerzitet u Beogradu, Fakultet organizacionih nauka (2021)
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Избор методе подземног откопавања на примеру лежишта бакра
Mилош Глигорић (2024)Тема овог завршног рада је избор методе откопавања у подземном руднику бакра. Рад је подељен на четири поглавља. У првом поглављу дат је приказ општих података и геолошких карактеристика ширег подручја и лежишта. Детаљан опис отварања и припреме лежишта за откопавање представљен је у другом поглављу. У трећем поглављу дат је опис све три варијанте изабране методе за запуњавањем откопаног простора, са освртом на количину захваћене руде, трошковима експлоатације као и динамиком откопавања. Четврто поглавље представља нумерички пример где ...... TOPĐA 3OHA. Bop, 2021 3. JoBaHoBuh, IL, 1990. Msapama jaMcKMux mpocropHja, PynapcKo — TCOJIOHIKH (aky-reT, Beorpajt 4. Gligorić, M., Gligorić, Z., Lutovac, S., Negovanović, M., Langović, Z., 2022. Novel hybrid MPSI-MARA decision-making model for support system selection in an underground mine ...
... Избор методе подземног откопавања на примеру лежишта бакра Mилош Глигорић Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Избор методе подземног откопавања на примеру лежишта бакра | Mилош Глигорић | | 2024 | | http://dr.rgf.bg.ac.rs/s/repo/item/0008811 Дигитални ...
... eraxu K-1IO0 m oGaBJba ce MH3pamna HpeocTajIHX 27 TipHnpeMHux IHpocTopuja, MOK ce Ha eraxkXaMa K-140 m u K -65 m sanouHme ca H3PpaJlOM HcTHX. Ca MCTBPpTOM FOJIHHOM OKOHHUAaBa Cc H IIpHIpeMa OTKOIIHHX cTa;Ka K-140 m i K-65 m, nok ce rnapajteJtHo H3BOJIe ripHnpeMHH pajloBa Ha eraxKH K-95 m. 3anpmreerak ...Mилош Глигорић . Избор методе подземног откопавања на примеру лежишта бакра, 2024
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Stabilnost kosina u stenskoj masi - savremeni koncepti i metode proračuna
... 011/3235-539 Za izdavača: Dekan prof. dr Zoran Gligorić, Univerzitet u Beogradu - Rudarsko-geološki fakultet Urednik publikacije: Prof. dr Biljana Abolmasov, Univerzitet u Beogradu - Rudarsko-geološki fakultet Tehnička priprema i dizajn korica: Dr Zoran Berisavljević, dr Miloš Marjanović i dr ...
... employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Univerzitet u Веодгади Rudarsko-geološki fakultet M о еп ПДИ – GaBiutaunal uuu o Zoran Berisavljević Dušan Berisavljević Miloš Marjanović Stabilnost kosina u stenskoj masi Savremeni koncepti i metode proračuna ...
... savremeni koncepti i metode proračuna Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Stabilnost kosina u stenskoj masi - savremeni koncepti i metode proračuna | Zoran Berisavljević, Dušan Berisavljević ...Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović. Stabilnost kosina u stenskoj masi - savremeni koncepti i metode proračuna, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2021
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Selection demolition sylo technology
Gligorić Miloš, Milojević Jelena (2015)Gligorić Miloš, Milojević Jelena. "Selection demolition sylo technology" in Underground Mining Engineering no. 26, Belgrade:University of Belgrade - Faculty of Mining and Geology (2015): 33-42. https://doi.org/https://doi.org/10.5937/podrad