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Упит dcterms_subject_txt:Electrical and Electronic Engineering,Industrial and Manufacturing Engineering

2381 items

  • Human factor risk management procedures applied in the case of open pit mine

    Snežana Kirin, Aleksandar Sedmak, Wei Li, Miodrag Brzaković, Igor Miljanović, Ana Petrović, Simon Sedmak (2021)
    Risk management aims to provide a controlled work environment to ensure the safe operation of the high-risk systems. It is a dynamic process which work in a continual state of change. The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit coal ...
    Upravljanje rizikom, ljudski faktor, bager sa kašikom, metod konačnih elemenata

  • Preliminary impact assessment of No2 emission from a heating plant on air pollution: case of Zemun, Serbia

    Boban Pavlović, Uroš Pantelić, Marija Živković, Dejan Ivezić (2023)
    The aim of this paper is to provide a preliminary evaluation of the impact caused by NO2 emissions from a heating plant on the local air quality. To model the spatial distribution of NO2 emissions from the heating plant, the AERMOD model was employed. The evaluation was conducted by analyzing and contrasting the simulated NO2 concentration from the heating plant with the overall NO2 concentration recorded at the nearest monitoring station over the entire heating season. The study focused ...
    AERMOD, квалитет ваздуха, моделирање дисперзије загађења, топлана, NO2 загађење

  • Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia

    Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović (2019)
    Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...
    Groundwater, Raw materials, Lithium, Mining, Field hydrogeology

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... flections in queries, and electronic thesauri, ontologies and wordnets which offer various possibilities for automatic or semi- automatic refinement of queries by adding new words to the set of words initially specified by the user. The HLT group has produced an integrated and easily adjustable tool ...
    ... which many types of geologic and engineering geology maps can be derived. This requires a database design or data model that is sufficiently robust to manage complex geologic concepts such as three dimensional (spatial) and temporal relations among map units, faults, and other features. A geographic ...
    ... repository for digital archiving, query, retrieving, analysis and visualization of geological data. The development and implementation of the GeolISS is managed by a team from the Faculty of Mining and Geology of Belgrade University and financed by Ministry of the Environmental protection. The main ...

  • 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

  • Forecasting Long-Term Spring Discharge

    Ristić-Vakanjac Vesna (2015)

  • Probabilistic analysis of anisotropic rock slope with reinforcement measures

    Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović, Svetlana Melentijević (2023)
    During the construction of E75 highway through Grdelica gorge in Serbia, a major failure occurred in the zone of reinforced rock slope. Excavation was performed in highly anisotropic Paleozoic schist rock formation. The reinforcement consisted of the two rows of micropile wall with pre-stressed anchors. Forces in anchors were monitored with load cells while benchmarks were installed for superficial displacement measurements. The aim of the study is to investigate possible causes of instability considering different probability distributions of the ...
    povratna analiza, tehnika optimizacije, verovatnoća loma, anizotropija čvrstoće

  • Determining the Impact of Cutting Elements State on the Bucket–Wheel Excavator Vibration and Energy Consumption

    Filip Miletić, Predrag Jovančić, Miloš Milovančević, Miloš Tanasijević, Stevan Đenadić (2022)
    Background There are two types of specifc sizes’ measurements. The frst is the measurement of energy consumption in a working technological process, and the second is the measurement of vibration, which is displayed over amplitudes of speed. There is an interplay between these two processes. Increasing the power consumption, the value of the vibration speed amplitudes increases. Purpose The process of the determination of machining parameters was based on minimizing the power consumption and vibration of the cutting tool, ...
    merenje, potrošnja energije, vibracije, radni vek reznog elementa

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... air, soil, and water. Sector of production and use of coal also provides Jobs to around 230.000 people in mines and power plants across 31 regions and 11 EU countries [8]. Table 1. The US coal consumption in 2021 [6] Electric power | Industrial total | Commercial | Residential and transportation' ...
    ... which is more than the reduction of emissions in the industrial sector and buildings [1, 2|. The largest absolute sectoral increase in emissions in 2022 was in the clectricity and heat generation sector. Emissions in the electricity and heat generation sector increased by 1.8% (i.e., 261 Mt), ...
    ... in the processes of production, transformation, and consumption of electricity. Total global energy-related greenhouse gas emissions rise by about 1% to a record high of 41.3 Gt CO»>eq. CO» emissions from energy-burning plants and the industrial sector accounted for 89% of greenhouse gas emissions ...

  • Foundation reinforcement by micropiles

    Ćorić Slobodan, Rakić Dragoslav (2015)

  • Sequential Design of Controller for Grinding Circuit

    Ivezić Dejan, Petrović Trajko, Zlatanović Dragan (2016)

  • Geotehnički uslovi izgradnje tunela „Debelo brdo“ na autoputu E-80 Niš - Pločnik

    Dragoslav Rakić, Radojica Lapčević, Irena Basarić Ikodinović, Dragan Lukić (2022)
    Tunel „Debelo brdo“ nazvan je po najizraženijem relјefnom obliku na ovoj drugoj deonici autoputa E-80 Niš – Pločnik. Osnovnu geološku građu na lokaciji tunela čini Mio-Plioceni kompleks heterogenog litološkog sastava. Izgradnja tunela je predviđena delom u otvorenom iskopu dužine 240 m, a delom sa podzemnim iskopom dužine 190 m. U zoni tunela, padina je okarakterisana kao uslovno stabilna, pa bi neadekvatna zasecanja mogla da izazovu klizanja terena. Iz tih razloga, u okviru rada posebno su prikazani geotehnički uslovi izgradnje ...
    Tunel „Debelo brdo“, Geotehnički parametri, Privremene kosine, Šipovi, Podgrada.
    ... terrain along the first section of E-80 highway in Serbia Proceedings of the XVII European Conference of Soil Mechanics and Geotechnical Engineering ECSMGE-2019, Geotechnical Engineering foundation of the future, Reykjavik, Iceland, 2019. [7] -80 u Srbiji (SEETO I faza izgradnje; Deonica 2 km: 5+670 ...
    ... University of Belgrade Faculty of Mining and Geology, Djusin 7, Belgrade, dragoslav.rakic@rgf.bg.ac.rs 2 University of Belgrade Faculty of Mining and Geology, Djusin 7, Belgrade, radojica.lapcevic@rgf.bg.ac.rs 3 University of Belgrade Faculty of Mining and Geology, Djusin 7, Belgrade, irena.basaric@rgf ...
    ... basaric@rgf.bg.ac.rs 4 University of Novi Sad Faculty of Civil Engineering Subotica, Kozaracka 2a, drlukic.lukic@gmail.com Abstract: The "Debelo brdo" tunnel is named after the most pronounced relief form on this second section of the E-80 Nis - Plocnik highway. The basic geological structure at the ...

  • Classifying large strains from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    ... Kasbergen3, and Ernst Willingshofer1 1Utrecht University, Faculty of Geosciences, Department of Earth Sciences, Utrecht, Netherlands (d.b.t.broerse@uu.nl) 2Department of Regional Geology, Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia 3Faculty of Civil Engineering and Geosciences ...
    ... faults, and broader zones of deformation. We use Particle Image Velocimetry(PIV) to derive incremental displacements from top-view images that we use in subsequent stepsto calculate the shape changes that come with large deformation. Because PIV describesdisplacement in a spatial reference, and material ...
    ... area in view, displacementsat any given time refer to fixed locations in space, and not to specific material points. Byreconstructing the path of material, we can follow small regions of material while they translate,rotate and change shape. To aid the qualitative interpretation of this deformation, we have ...

  • Examination of the possibility of obtaining pyrite concentrate from the flotation tailings of the Lece mine

    Predrag Lazić, Đurica Nikšić, Dejan Stojanović, Tamara Stojanović (2022)
    Рудник Леце је карактеристичан по томе што у флотацијским концентратима олова и цинка као корисну примену има злато и сребро. Практично од отварања рудника и флотације трају истраживања и борба за што боље технолошке показатеље на сва четири платива метала (олово, цинк, злато и сребро) посебно на злату. Овај рад представља допринос тој борби у циљу повећања искоришћења злата. Како је начин појављивања злата веома различит (самородно, са оловом и цинком, са пиритом и кварцом) то је и технолошка ...
    Флотација Леце, концентрат пирита, злато, сребро

  • Electronic Dictionaries - from File System to lemon Based Lexical Database

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić (2018)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    ... dubbed WS4LR (Krstev et al., 2006), subse- quently upgraded and renamed LeXimir (Stanković, Ranka and Krstev, Cvetana, 2016), was designed and implemented for the purpose of further development and management of morphological electronic dictionaries of Serbian (SMD), presented in more details in ...
    ... Stanojčić, Ž. and Popović, L. (2008). Gramatika srpskog jezika. Zavod za udžbenike. Tutin, A. and Véronis, J. (1998). Electronic dictionary en- coding: Customizing the TEI guidelines. In Proc. Eu- ralex. Villegas, M. and Bel, N. (2015). PAROLE/SIMPLE ’lemon’ ontology and lexicons. Semantic ...
    ... , G., and Krstev, C. (1993). Electronic dictionary and text processing in Serbo- Croatian. Sprache–Kommunikation–Informatik, 1:225. 10. Language Resource References Krstev, Cvetana and Vitas, Duško. (2015). Serbian Mor- phological Dictionary - SMD. University of Belgrade, HLT Group and Jerteh ...

  • Thermal properties of soil

    Djurić Tina, Rakić Dragoslav, Čaki Laslo, Ćorić Slobodan (2018)

  • Thermal properties of soil

    Djurić Tina, Rakić Dragoslav, Čaki Laslo, Ćorić Slobodan (2018)

  • Shear strength properties of Dimitrovgrad flysch, Southeastern Serbia

    Berisavljević Zoran, Berisavljević Dušan, Čebašek Vladimir (2014)

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

    Trifunović Prvoslav, Miličić Nada (2013)

  • Proposition of a Landslide Monitoring System in Czech Carpathians

    Marjanović Miloš, Caha Jan, Mirijovsky Jakub (2014)