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Упит dcterms_subject_txt:3Д геофизичко-геолошки модел

3810 items

  • Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons

    Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić (2018)
    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, ...
    kontaminacija, matematički model, podzemne vode, remedijacija, ugljovodonici

  • Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia

    Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin (2013)
    ... numerical model was MODFLOW-2000, a modular, three-dimensional (3D) finite-difference ground- water-flow model developed by the US Geological Survey (Harbaugh et al. 2000). The software used is Groundwater Vistas 5.33b (Environmental Simulations International, Ltd.). The Vić Bare numerical model has been ...
    ... groundwater regime, as well as observation of the Sava River and precipitation, have enabled model verification for the period 2010–2011, which was performed with the same time steps as model calibration. The results of model verification indicated a relatively good match between the observed and calculat- ed ...
    ... capacities of the exploita- tion wells. Numerical model In order to determine the different hydraulic components of riverbank filtration, the water balance and the ground- water reserves, numerical modelling was performed. The input data for the model are the result of numerous field investigations (well ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)

  • Modeliranje buke u urbanoj sredini u okolini Doma zdravlja u Pančevu

    Stefan Mandić (2024)
    Prisustvujemo epohi gde buka predstavlja veoma rasprostranjen i moderan fenomen koji možemo deklarisati kao problem. Svedoci smo toga da moderni problemi zahtevaju malo drugačiji pristup nego u prošlosti, odnosno zahtevaju moderna rešenja. Samim tim, vremenom je došlo do modernizacije alata,u ovom slučaju došlo je do razvoja modela za rasprostiranje buke koji su se vremenom unapređivali pa tako danas imamo jedno moćno sredstvo za borbu protiv buke u vidu kompjuterskog softvera.Ovaј master rad, pod nazivom „Modeliranje buke u urbanoj sredini ...
    buka, zvuk, saobraćaj, modeliranje, merenje buke
    ... perioda 38 Stefan Mandić R506-22 Rudarsko geološki fakultet- Univerzitet u Beogradu Modeliranje rasprostranjenosti buke u urbanoj sredini u okolini Doma zdravlja „Pančevo“ 8 RAZVOJ MODELA ZA MAPIRANJE BUKE Za problem kao što Je buka, razvijeni su modeli koji nam omogućuju da predvidimo uticaj ...
    ... Stefan Mandić R506-22 Rudarsko geološki fakultet- Univerzitet u Beogradu Modeliranje rasprostranjenosti buke u urbanoj sredini u okolini Doma zdravlja „Pančevo“ Nivo zvuka na mestu merenje je takođe i pod uticajem pravca vetra. Uobičajeno je da se kod modela za predikciju rasprostiranja buke ...
    ... je prikazan i rad u softveru iNoise. 41 Stefan Mandić R506-22 Rudarsko geološki fakultet- Univerzitet u Beogradu Modeliranje rasprostranjenosti buke u urbanoj sredini u okolini Doma zdravlja „Pančevo“ Me Eda Model View i Windsw Help (nan oreup). >Tevg:O00BwMemv 0 006 A RN 4 0 B 2 & T |a| ...

  • Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue modelling

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    ... observed variability in offset along strike. Figure 1: Best-fit model and natural example of the Cerna-Timok fault system (modified after Krstekanić et al., 2021). a) Interpreted top-view photo of the best-fit model at the end of the experiment. b) Cumulative 64 Session 3: Tectonics of ...
    ... of faulting, folding and salt systems strain type map of the best-fit model at the end of the experiment. c) Tectonic map of the Cerna-Timok fault system in the South Carpathians-Serbian Carpathians-Balkanides orocline around the Moesian Platform. References Krstekanić, N., Willingshofer, E., ...
    ... modelling Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue ...

  • A Teamwork-Based Protocol for a Holistic Approach to Selecting a Sustainable Mine Dewatering Management Plan

    Dragoljub Bajić, Sanja Bajić, Jelena Trivan, Ljubica Figun, Jelena Milovanović (2024)
    znanje eksperta, podzemne vode, primenjena matematika, fazi optimizacija, strategija održivog upravljanja, holistički sistem

  • Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data

    Vesna Cvetkov, Ilija Vasiljević, Mirko Petković (2015)
    ... archeological objects using Euler 3D deconvolution of magnetic data Vesna Cvetkov, Ilija Vasiljević, Mirko Petković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data | Vesna ...
    ... magnetic data before deconvolution. Also, for the model with objects buried on different depths, the edges of all objects are better defined and the depth better estimated after applying the reduction to the pole, although it is stated that the Euler 3D deconvolution is insensitive to magnetic declination ...
    ... decreases the cost of excavation. Euler 3D deconvolution in addition of defining the position of the source of the anomaly, enables quick depth estimation for magnetic data in grid from using Euler’s homogeneity relation. Testing the Standard and the Located Euler 3D methods on synthetic data has shown ...

  • Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model

    Miloš Marjanović, Stefan Milanović, Nikola Simić, Lazar Kričak (2024)
    The Majdanpek open pit mine south district is currently active mining prospect of copper ore exploitation in eastern Serbia. Its depth is approaching the termination depth and occurrences of large-scale instabilities and global instability of the final pit slope is possible. These can generate catastrophic mass movement inside an area that encloses a regional road route and the Pek River bed which is channelled along the outer contour of the pit. The displacements that were noted in early 2023, in the ...
    displacement, survey, inverse velocity, open pit

  • The Dictionary of the Serbian Academy: from the Text to the Lexical Database

    Ranka Stanković, Rada Stijović, Duško Vitas, Cvetana Krstev, Olga Sabo (2018)
    In this paper we discuss the project of digitization of the Dictionary of the Serbo-Croatian Standard and Vernacular Language. Scanning and character recognition were a particular challenge, since various non-standard character set encoding was used in the course of the almost 60-year long production of the dictionary. The first aim of the project was to formalize the micro-structure of the dictionary articles in order to parse the digitized text of and transform it into structured data stored in relational lexical database. This approach ...
    computer lexicography, lexical database, language resources, dictionary, Serbian language

  • Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji

    Dragoslav Rakić (2013-05-10)
    U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...
    komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganja

  • Konstitutivne zavisnosti komunalnog otpada sa deponija u Srbiji

    Dragoslav Rakić (2013-05-10)
    U disertaciji su prikazani rezultati laboratorijskih ispitivanja uzoraka komunalnogotpada dobijeni u aparatima za direktno smicanje i edometarskim aparatima (jedanedometarski aparat konstruisan je za potrebe ove disertacije). Sva ispitivanja su izvršenana veštački pripremljenim uzorcima, uz uvažavanje preporuka koje se odnose nadimenzije korišćenih aparata i veličinu najvećih frakcija u uzorku (EN 1997-2, ASTM2007-a, 2007-b). Za formiranje uzoraka korišćen je komunalni otpad različite starosti,uzet sa dve deponije u Srbiji (Ade Huje u Beogradu i gradske deponije u Novom Sadu).Interpretacija rezultata dobijenih iz ...
    komunalni otpad, deponija, geotehnička klasifikacija, čvrstoća smicanja,deformabilnost, indeks primarne kompresije, indeks sekundarne kompresije, modelisleganja

  • Uticaj utiskivanja gas-lift gasa na prenos mase i toplote

    Branko Grubač (2019)
    Nakon uvođenja kontinualnog gas-lifta, primećen je porast proizvodnje tečnog naftnog gasa, TNG, u postrojenju za preradu gasa, kao jednog od finalnih proizvoda dobijenog iz fluida gaso kondenzatnih i rastvorenog gasa iz naftnih bušotina. Pretpostavljeno je da se prisustvom gas-lift gasa uspostavlja drugačija ravnoteža faza u odnosu na slučaj bez gaslifta, te da je gas-lift gas stripovao propan i butane iz tečne u parnu fazu, što je dovelo do povećanja prinosa TNG-a. Napravljen je model bušotine koja radi u kontinualnom gas-liftu ...
    gas-lift, modelovanje bušotine, prenos mase i toplote, taloženje parafina

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje
    ... Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This case study considers the City of Belgrade area for training and ...
    ... were the best model- ling techniques. Youssef et al. (2016) combined four Machine Learning techniques and selected eleven predictors for creating LSA, and they concluded that RF and BRT have the best success and predictive rates. Finally, Chen et al. (2017) compared the logistic model tree (LMT), RF ...
    ... CoKriging technique, again by using the elevation model to balance the influence of surface topography, which is particularly justified due to the soil depth thinning-out on steeper slopes (De Vita et al., 2006). After the optimization of the semivariogram model, the overall range was approximately 1000 m ...

  • Faktori uticaja na izbor optimalnog sistema odbrane od podzemnih voda kod površinskih kopova

    Dragoljub Bajić, Dušan Polomčić (2015)
    hydrodynamic model, multi-criteria optimization, openpit mine

  • Развој геолошког терминолошког речника ГеолИССТерм

    Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić (2011)

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)
    ... to a modification of this model by including a new (fourth) element, featuring the production (IF-THEN) rules related to an object in the model. Thus both the procedural and declara- tive knowledge related to a class object could be represented. Such a modified OOA model was then used for the rep ...
    ... nted approach in model development for complex applications. Its main characteristic is a separation of the domain model, which is represented by business services and data services, from user interface, represented by user services. Fig. 4 depicts the three-tiered service model of PROTECTOR. The ...
    ... safety in mining environ- ment is formally represented using a modification of the Coad-Yourdon object-oriented analysis (OOA) model (Coad and Yourdon, 1991). In the standard model every real world entity is represented by a class (object) consisting of its name, attributes and methods pertaining to the ...

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...

  • Stochastic simulation and prediction of turbidity dynamics in karst systems. Case study: Mokra karst spring (SE Serbia)

    Veljko Marinović, Branislav Petrović (2021)
    karst spring, stochastic modeling, ARCR model, Serbia

  • Simulation of Migration of Nitrate Contamination in Epikarst Groundwater: A Column Laboratory Method

    Branislav Petrović (2021)
    epikarst, model, nitrate, electrical conductivity

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability