Претрага
846 items
-
Simulacioni modeli tehnologije rada bagera i odlagača na površinskim kopovima uglja
Vojislav Krstić (1998)Vojislav Krstić. Simulacioni modeli tehnologije rada bagera i odlagača na površinskim kopovima uglja, Beograd:Rudarsko-geološki fakultet, 1998
-
Развој модела конструкције просторија отварања рудника са подземном експлоатацијом
Dražana M. TOŠIĆ (2016)Dražana M. TOŠIĆ. Развој модела конструкције просторија отварања рудника са подземном експлоатацијом, Beograd:Rudarsko Geološki Fakultet, 2016
-
Geološko-geofizički model dela Timočkog magmatskog kompleksa
Snežana M. IGNJATOVIĆ (2014)Timočki magmatski kompleks; aeromagnetska istraživanja, gravimetrijska istraživanja, 2D geološko-geofizički model, Valja StržSnežana M. IGNJATOVIĆ. Geološko-geofizički model dela Timočkog magmatskog kompleksa, Beograd:Rudarsko Geološki Fakultet, 2014
-
Dinamički modeli upravljanja zalihama proizvodnje i potrošnje u eksploataciji nemetaličnih mineralnih sirovina
Stefko Boševski (2010)Stefko Boševski. Dinamički modeli upravljanja zalihama proizvodnje i potrošnje u eksploataciji nemetaličnih mineralnih sirovina, Beograd:Rudarsko Geološki Fakultet, 2010
-
Tehno-ekonomski model izbora optimalne metode podzemne eksploatacije magnezitskih žica "Magnohrom" -Kraljevo
Miloš Čolović (2001)Miloš Čolović. Tehno-ekonomski model izbora optimalne metode podzemne eksploatacije magnezitskih žica "Magnohrom" -Kraljevo, Beograd:Rudarsko Geološki Fakultet, 2001
-
Uporedna analiza naponskog stanja sigurnosnih stubova na prostornim i ravanskim numeričkim modelima
Nenad Petrović (1994)Nenad Petrović. Uporedna analiza naponskog stanja sigurnosnih stubova na prostornim i ravanskim numeričkim modelima, Beograd:Rudarsko-geološki fakultet, 1994
-
Razvoj modela za procenu rizika na deponijama industrijskog otpada mineralnog porekla
Dragana NIŠIĆ, D. (2019)Dragana NIŠIĆ, D.. Razvoj modela za procenu rizika na deponijama industrijskog otpada mineralnog porekla, Beograd:Rudarsko Geološki Fakultet, 2019
-
Sprega neuronskih mreža i numeričkih modela za definisanje sigurnih rastojanja kod razletanja komada pri miniranju
Saša Stojadinović (2013)Saša Stojadinović. Sprega neuronskih mreža i numeričkih modela za definisanje sigurnih rastojanja kod razletanja komada pri miniranju, Beograd:Rudarsko Geološki Fakultet, 2013
-
Simulacioni model za izbor optimalnog transportnog sistema na površinskom kopuBogutovo selo"-Ugljevik"
Lazar Stojanović (2000)Lazar Stojanović. Simulacioni model za izbor optimalnog transportnog sistema na površinskom kopuBogutovo selo"-Ugljevik", Beograd:Rudarsko-geološki fakultet, 2000
-
Razvoj tehnološkog modela rada bagera za operativno planiranje upravljanja kvalitetom uglja na tamnavskim površinskim kopovima
Nadica Drljević (2010)Nadica Drljević. Razvoj tehnološkog modela rada bagera za operativno planiranje upravljanja kvalitetom uglja na tamnavskim površinskim kopovima, Beograd:Rudarsko-geološki fakultet, 2010
-
Primena savremenih matematičkih modela za simulaciju kretanja podzemnih voda i transporta zagađenja na primeru izvorišta Vrbas
Dragan Kaluđerović (2000)Dragan Kaluđerović. Primena savremenih matematičkih modela za simulaciju kretanja podzemnih voda i transporta zagađenja na primeru izvorišta Vrbas, Beograd:Rudarsko-geološki fakultet, 2000
-
Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela
Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić (2010)Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić. "Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela" in Vodoprivreda 42 no. 04-Jun, Beograd : Jugoslovensko društvo za odvodnjavanje i navodnjavanje (2010): 223-235
-
Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement
... value of density contrast and the next model was created. 31 Figure 1. Results of 2D gravity-density inversion: a) basement model, b) gravity influence of density variations in the basement (gb) and of the first (gm1) and sixth (gm6) model, c) density contrast of the basement ...
... total gravity anomaly. Depth-to-basement data (Pigott and Radivojević, 2010) were used to model the lateral extension of deeper layers of sediments and the shape of the basement. The total depth of the model is set to be 5 km. Density variations of the basement were calculated for each point along ...
... first model (gm1) was calculated (Fig. 1b) and compared to the gravity effect of density variations within the basement (gb). Although the differences were not high, further iterations were needed. For the next iteration, the value of gb was corrected for the gravity effect of the first model (gm1) ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić,. "Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement" in International scientific conference Challenges in Applied Geology and Geophysics: 100th Anniversary of Applied Geology at AGH University of Science and Technology, Book of abstracts, Kraków, Poland, 10-13. Sep. 2019, Kraków, Poland : AGH University of Science and Technology (2019)
-
Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
-
Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015-04-27)Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...Cvjetko P. Stojanović. "Model upravljanja investicionim projektima otvaranja površinskih kopova uglja" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-27)
-
Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model
Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević. "Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model" in In Proceedings of the Sixth International Conference on Computational Linguistics in Bulgaria (CLIB 2024), BAS (2024)
-
A Teamwork-Based Protocol for a Holistic Approach to Selecting a Sustainable Mine Dewatering Management Plan
znanje eksperta, podzemne vode, primenjena matematika, fazi optimizacija, strategija održivog upravljanja, holistički sistemDragoljub Bajić, Sanja Bajić, Jelena Trivan, Ljubica Figun, Jelena Milovanović. "A Teamwork-Based Protocol for a Holistic Approach to Selecting a Sustainable Mine Dewatering Management Plan" in Sustainability , MDPI (2024)
-
Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic
This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композицијаMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović. "Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic" in Energies, MDPI AG (2022). https://doi.org/10.3390/en15186786
-
Risk Evaluation: Brief Review and Innovation Model Based on Fuzzy Logic and MCDM
Stevan Djenadic, Milos Tanasijevic, Predrag Jovancic, Dragan Ignjatovic, Dejan Petrovic, Ugljesa Bugaric (2022)The risk assessment of engineering systems represents an important part of the quality of service and dependability. The existing methods for risk evaluation use crisp sets for rating partial indicators’ proposition and their cumulative products as an overall indicator. In this paper, existing FMEA and FMECA methods have been improved using the fuzzy expert system for calculating the risk priority number. The application of fuzzy logic allows the use of linguistic descriptions for risk analysis. In this way, the ...Stevan Djenadic, Milos Tanasijevic, Predrag Jovancic, Dragan Ignjatovic, Dejan Petrovic, Ugljesa Bugaric. "Risk Evaluation: Brief Review and Innovation Model Based on Fuzzy Logic and MCDM" in Mathematics, MDPI AG (2022). https://doi.org/10.3390/math10050811
-
Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... - The model stores al] training examples and compares new data to them. It does not create an explicit model but uses examples to make decisions. For example, K-Nearest Neighbors (KNN). 8. Model-Based Learning - The model builds a generalized model based on the training data. This model is used ...
... assess model performance and prevent overfitting. 27 c.Evaluation- Measures accuracy and methodology. Assess the model's accuracy in predicting the correct pump states. Analyze errors and misclassifications to further improve the model. • Model Application a. Prediction - The model is used ...
... and F1-score are used. b.Cross-Validation- A technique for assessing how the model will perform on unseen data, helping to evaluate the model's stability and robustness. • Model Application a.Prediction - The model is used to predict the pump's condition in real-time based on current sensor ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024