Претрага

Упит dcterms_subject_txt:data mining

1197 items

  • Analysis of Voltage Fluctuations Influence on the Mining Plants Efficiency

    Snežana Aleksandrović, Ilija Jeftenić (2019)

  • Risks in optimization of consumables supplies in mining

    Vujić Slobodan, Boševski Stefko, Miljanović Igor, Petrovski Aleksandar, Milutinović Aleksandar, Čebašek Vladimir, Gajić Grozdana (2011)

  • Novel Methods in Multiple Criteria Decision-Making Process (MCRAT and RAPS)—Application in the Mining Industry

    Katarina Urošević, Zoran Gligorić, Igor MIljanović, Čedomir Beljić, Miloš Gligorić (2021)
    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 ...
    višekriterijumsko odlučivanje, nove metode, rudarstvo, šeme miniranja

  • Need to Improve the Natural Aggregate Resources Supply in the City of Belgrade (Serbia)

    Simić Vladimir, Abramović Filip, Andrić Nevena, Delić Ivana, Miladinović Zoran, Životić Dragana (2016)

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... 03:29:28 Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom Lidija Beko, Ivan Obradović, Ranka Stanković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Developing Students’ Mining and Geology Vocabulary Through ...
    ... 22nd to 24th, 2015. Developing students’ mining and geology vocabulary through flashcards and L1 in the CLIL classroom Lidija Beko + Ivan Obradović ++ and Ranka Stanković ++ + Chair of Foreign Languages , University of Belgrade, Faculty of Mining and Geology, Đušina Street 7, Belgrade, Serbia ...
    ... Faculty of Mining and Geology, Đušina Street 7, Belgrade, Serbia, Phone: +(381) 11 3219 101, Fax: +(381) 11 3235 539, E-Mail: ivan.obradovic@rgf.bg.ac.rs, WWW: http://www.rgf.rs/LicnePrezentacije/ivan_obradovic/ ++Chair of Applied Mathematics, University of Belgrade, Faculty of Mining and Geology ...

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... geological constraints, policies and mining methods. The basic data required in any operational planning are coal quality and capacity. Difficulties in optimum production schedule are caused by variability of grade and inability to accurately predict grades of smaller mining units. Therefore, detailed information ...
    ... is to determine a sequence of mining tasks to deliver the required coal quality and quantity to the power plants in the short-to-medium term. Simulation algorithms currently used in mining are more appropriate than ordinary kriging to deal with matters related to data variability. Mine production plans ...
    ... use this data to develop MinexTM coal quality seam models to map the variability associated with the in situ qualities. Generation of multiple equally probable models via Rsim. (2) After its construction, a mini block model is used for mining planning and scheduling. For a given mining schedule and ...

  • 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

  • Possibilities of retro-digitalized German-Serbian Mining Dictionary

    Biljana Lazić, Olivera Kitanović, Ivan Obradović (2019)
    U radu će biti prikazan opis procesa retrodigitalizacije dvojezičnog Nemačko-srpskog rudarskog rečnika iz 1923. godine čiji je autor rudarski inženjer Dragutin Stepanović (Степановић, 1923). Ovaj rečnik je zasnovan na skoro 4 000 leksičkih zapisa koji su prevodilački ekvivalenti ili uputnice. Umesto predgovora autor daje uvid u svoje pismo upućeno “Ministru šuma i rudnika” u kome piše o nameri da zabeleži reči koje se koriste u narodu kako bi izbegao upotrebu nemačkih reči. Iako broj odrednica nije toliko veliki, rečnik ...
    elektronska leksikografija

  • Drill hole deviation in surface mine blasting

    Negovanović Milanka, Kričak Lazar, Tošić Dražana, Ignjatović Snežana (2017)

  • History of meteorite donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia)

    Alena Zdravković, Maja Milošević, Kristina Šarić, Ivana Jelić, Ana Černok (2021)
    ... donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia) Alena Zdravković1, Maja Milošević1, Kristina Šarić1, Ivana Jelić2, Ana Černok3 1Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia; alena.zdravkovic@rgf.bg.ac.rs; ...
    ... 1899). Apart from 1525 samples of minerals, the first collection included three meteorites, as well. Honoured mining engineer M. Melnikoff, conservator of Mineralogical collections of the Mining Institute Museum in St. Petersburg, has signed an accompanying catalogue written in French, which is kept ...
    ... Измењено: 2023-10-14 04:27:04 History of meteorite donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia) Alena Zdravković, Maja Milošević, Kristina Šarić, Ivana Jelić, Ana Černok Дигитални репозиторијум Рударско-геолошког факултета ...

  • Development of Integrated Fuzzy Model for Mine Management Optimization

    Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)
    Technoeconomic, environmental and safety criteria generally affect the management of metallic and non-metallic mining operations. The first basic question that needs to be addressed when planning ore mining is which methods are adequate and what is the optimal mining technology? Due to the complex geologic framework of ore deposits, geological exploration has rendered synonymous the inherent uncertainties, vagueness, and inaccuracies. As a result, subjective evaluation by engineers and expert experience have become increasingly important. Given that the natural language ...
    mining technology, expert evaluation, triangular fuzzy numbers, multicriteria decision making

  • Application of the system for dust control on the haulage roads on example of open pit Buvač

    Vukelja Željko, Tošić Dražana, Negovanović Milanka (2017)

  • Decision making process in the selection recultivation open pit mine and landfils

    Димитријевић Бојан, Чебашек Владимир, Илић Саша, Мајсторовић Јелена, Јанковић Иван (2017)

  • Application of Fuzzy Analytic Hierarchy Process to Underground Mining Method Selection

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Vesna Ristić Vakanjac (2020)
    metode podzemne eksploatacije, znanje eksperta, višekriterijumsko odlučivanje, podzemna eksploatacija

  • A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)

    Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin (2016)
    ... Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs UNDERGROUND MINING ENGINEERING 29 (2016) 43-54 UDK 62 UNIVERSITY OF BELGRADE - FACULTY OF MINING AND GEOLOGY YU ISSN ...
    ... dynamic development mining proceeding and opening new open pits in the central part of Kolubara’s coal basin. In: PAVLOVIĆ, V. (ed.) Proceedings of the VIII International conference of Surface Mining OMC 2007. Vrujci Spa, Serbia, 17-20 October, 2007. Belgrade: Yugoslav Opencast Mining Committee: pp. 67-74 ...
    ... “conceptualization phases”. In the first phase, the hydrogeologic model is created using collected data from prior investigations and, as such, it constitutes a basis for determining which data are “critical”. The second phase is elaboration, founded upon the outcomes of additional, more recent ...

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... 5). In drilldown reports, OLAP can go in the reverse direction and automatically display detailed data that comprises consolidated data. For example, equipment breakdowns can be accessed by mining production system, equipment or its component part, as well as by the breakdown type or more detailed ...
    ... D., Belgrade: Faculty of Mining and Geology. Kolonja B., Stanković R., Vuković F. (2000). Production information system of the Pljevlja coal mine, 9th International Symposium on Mine Planning & Equipment Selection 2000. Athens, Greece. Seidman, C. (2001). Data Mining with Microsoft SQL Server ...
    ... System (TIS) encompasses the most important segments of mine business operations, namely: personnel record keeping and job classification; mining equipment data management; monitoring of coal production; managing of equipment maintenance information; and MIS - management information and decision ...

  • Prediction of surface subsidence for the purpose of mining project of underground exploitation of bauxite ore in the deposit Podbraćan

    Milutinović Aleksandar, Ganić Aleksandar, Ganić Meri, Tokalić Rade (2014)

  • Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria

    Vladimir Krivošić, Luka Crnogorac, Rade Tokalić (2024)
    The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...
    utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijuma

  • Analysis of the exhaust emissions inventory from auxiliary mining machines

    Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)
    Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...
    emissions, mining, auxiliary machines