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Упит dcterms_subject_txt:matematički model

808 items

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)
    ... statistic analyses of Ash/LCV corelation 2.1.2. Geological Modeling The geological model for Tamnava West was developed using the Minex software package with the data provided by EPS. To provide a better structural model, the technique within Minex called the "Splitting" and "Father and Son" concept ...
    ... sandstone and overburden river sediments have been modeled within a stratigraphic section up to 98 m thick. The reason for so detail model lies in the fact that this model is base for coal homogenization process, so it need to represent as real as possible every lithological member within minimum ...
    ... bench geometry for Tamnava West, final bench design is done semi automatically. Created 3D model of benches is grid type, and as such is suitable for interaction with created geological grid model. 2.1.5. Discretization of pit benches on mining blocks In order to make operational planning ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... 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 ...

  • 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 ...
    klizišta, podložnost
    ... 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 ...

  • Eksperimentalno određivanje na modelima iskorišćenja i osiromašenja rude kod podetažne metode sa paralelnim rasporedom bušotina za prilike u rudnom telu Tilva Roš""

    Miodrag Miljković (1976)
    Ruda, bušotina, Tilva Roš

  • Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?

    Alena Zdravković, Maja Milošević, Ivana Jelić (2021)
    ... Belgrade in Serbia, has been holding over a hundred years the gypsum model of triangular shape that represents the replica of one of the world’s largest native gold nugget weighing 36.2 kg, known as “The Great Triangle”. Nugget model is golden metallic in colour with a shape similar to a rectangular ...
    ... Since the gold colour and shine remained the same, did not darken by the time it was assumed that the model is gilded. Material and method Chemical composition of the gypsum model surface was carried out in the Laboratory for SEM, Faculty of Mining and Geology, University of Belgrade ...
    ... the type and manner of material that was used for covering. Result and conclusion The data obtained by EDS analysis show that the gypsum model is covered with gold leaf, which was expected according to the macroscopic characteristic of the object. How many such gilded replicas of the ...

  • Evaluation and comparision recent global geopotential model in Serbia

    Odalović Oleg, Grekulović Sanja, Vasiljević Ivana (2013)

  • 3Д модел Жагубичког басена

    Петровић Драгана, Васиљевић Ивана (2010)

  • Friction memory effect in complex dynamics of earthquake model

    Kostić Srđan, Franović Igor, Todorović Kristina, Vasović Nebojša (2013)

  • Defining of model for determining the service life of hoisting ropes in mining

    Trifunović Prvoslav, Miličić Nada (2013)

  • Fuzzy model of autogenous suspension coal cleaning

    Benović Tomo, Miljanović Igor, Vujić Slobodan (2012)

  • Model for Estimating Blasted Rock Fragmentation

    Torbica Slavko, Lapčević Veljko (2014)

  • Zaštita vodnog nasleđa – doprinos modelu održivog korišćenja vodnih resursa u Srbiji

    Mijović Dušan, Rakić Dragoslav, Ajranović Dušan (2016)

  • Multi-Criteria Fuzzy-Stochastic Diffusion Model of Groundwater Control System Selection

    Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić, Miloš Gligorić, Milanka Negovanović (2019)
    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 motion

  • Ontološki model upravljanja rizikom u rudarstvu

    Olivera Kitanović (2021)
    Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...
    rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika
    ... mašinskom učenju : model maksimalne entropije (Maxent) (matematički ekvivalent modelu diskretnog izbora) i metod potpornih vektora (eng. linear support vector machine, SVM) klasifikator sa linearnim jezgrom (Abarbanell, Lanen, and Verrecchia 1995). Evaluacija razvijenog modela nije potvrdila hipotezu ...
    ... takvih radnih listova. FMEA može biti kvalitativna analiza (Rausand and Hoyland 2003), ali se može iskazati i kvantitativno kada se koriste matematički modeli koeficijenata otkaza (Tay and Lim 2008) kombinuju sa statističkom podacima otkazima. FMEA je jedna od prvih strukturiranih, sistematskih tehnika ...
    ... simboličkim pravilima, statističkim metodama, mašinskim učenjem, i hibridnim pristupom. Tehnike mašinskog učenja koriste korpus za obučavanje matematičkih modela. U ovom radu je korišćen hibridni pristup, ali najvećim delom se obrada zasnivala na simboličkim pravilima Unitex47 softvera otvorenog koda ...

  • Karst Plateau Dubašnica as Geopark – Contemporary model for Geoheritage protection in Serbia

    Ranđelović Dragana, Ranđelović Dragan, Ilić Marina (2014)

  • A Conceptual hydrogeological model for the open pit mine „Polje E“ (Kolubara coal basin, Serbia)

    Bajić Dragoljub, Polomčić Dušan (2012)

  • Moduli PEST-a za ubrzavanje automatske kalibracije sa regularizacijom kod hidrodinamičkih modela

    Polomčić Dušan, Bajić Dragoljub, Močević Jelena (2015)

  • 3D Hydrodinamic model of open pit mine “Polje E” (Kolubara coal basin)

    Polomčić Dušan, Bajić Dragoljub (2011)

  • Model slučajeva upotrebe sistema za upravljanje kvalitetom uglja

    Stevanović Dejan, Kitanović Olivera, Kolonja Ljiljana (2010)

  • Protection of hydrogeological heritage as a model for sustainable use of resources in Serbia

    Mijović Dušan, Rakić Dragoslav, Ajranović Dušan (2015)