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Упит dcterms_subject_txt:working environment

460 items

  • Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...
    Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetra
    ... for Electricity Production in Serbia | Boban Pavlović, Dejan Ivezić, Marija Živković | Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020. | 2020 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005061 Дигитални репозиторијум Рударско-геолошког факултета ...
    ... e electricity production, it is necessary to com pare the individual contribution of each RES to the in dependent, affordable, reliable and environment-friendly national electricity sector. Therefore, th e m ost potential RES for electricity production in Serbia has been a ssessed in or der to ...

  • Sustainable Waste Management Model - Case Study: Novi Pazar

    Stefanović Gordana, Sriljej Hivzo, Ristović Ivica, Milutinović Biljana, Milošević Olivera, Popović Sonja (2014)

  • Conversion of land areas after coal mine closure and reclamation

    Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić (2023)
    Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.
    rekultivacija, melioracija, revitalizacija, otkopavanje uglja, održivi razvoj
    ... activity has a large-scale impact on the environment. Coal mining has been quite pronounced considering the topographical changes of the green space that would directly affect the degradation of agricultural lands. Predictions of the effects on the environment are very important and present the concern ...
    ... safe operation of mining, cover the management of waste (the prospecting, extraction, transport, storage and treatment of mineral resources and the working of quarries). According to the Serbian Law on Mining, technical and biological reclamation and spatial arrangement must be performed with the purpose ...
    ... (Chapter 4). 2016 Nova Science Publishers, New York. Changes and additions to the spatial plan of the special purpose area of the Kostolac coal basin, working version, 2017. Available online: https://www.mgsi.gov.rs/sites/default/files/NACRT%20izmena%20i%20dopuna.pdf (Accessed on 20.1.2023) Law on ...

  • Landslide Susceptibility Zonation in The Kolubara River Basin (Western Serbia) – Analisys of Input Data

    Dragićević Slavoljub, Carević Ivana, Kostadinov Stanimir, Novković van., Abolmasov Biljana, Milojković Branko, Simić Dušan (2012)

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... Figure 1 The X-ray diagram of the sample, which is exposed for 7 days in a humid environment without the addition of binders 3.2.2 The samples were exposed for 7 days in a humidified environment with the addition of hydrated lime, 2, 4 and 6 % (TA-PL2-7, TA-PL4-7 and TA-PL6-7) Samples ...
    ... 3c). Figure 3 The X-ray diagram of the sample exposed to 7 days in a humid environment with the addition of cement binder: a) 6%, b) 4%, c) 2% 3.2.4 The sample exposed for 28 days in a humid environment without the addition of binders (TA-P-28) A sample of the mixture of fly ash and ...
    ... 4.). Figure 4 The X-ray diagram of the sample, which is exposed for 28 days in a humid environment without the addition of binders 3.2.5 Samples were exposed for 28 days in a humid environment with the addition of lime, 2, 4 and 6 % (TA- PL2-28, TA-PL4-28, and TA-PL6-28) Diffraction ...

  • The Importance of the Existing Engineering Geological Conditions During the Building Construction on the Terrain Affected by Sliding

    Rakić Dragoslav, Berisavljević Zoran, Basarić Irena, Đurić Uroš (2014)

  • New data from the Lower Cretaceous carbonate platform deposits of Dimitrovgrad section (Southeastern Serbia)

    Jelena Stefanović, Bojana Džinić, Giovanna Della Porta, Dejan Radivojević (2021)
    Lower Cretaceous, facies analyses, limestones, Getic, Serbia, carbonate platform
    ... fully made of Bacinella sp. show the significant changes in environment of deposition from platform interior to reef depositional environment. Besides that, the pyrite rich siliciclastics provide the information of transition to slope environment. The distribution of different facies show rapid lateral ...

  • Modeling and Monitoring of Karst System as a Base for its Evaluation and Utilization - a Case Study from Eastern Serbia

    Milanović Saša, Stevanović Zoran, Vasić Ljiljana, Ristić-Vakanjac Vesna (2011)

  • Risk assessment of flooded equipment revitalization on opencast coal mine Tamnava-West Field

    Natalija Pavlović, Dragan Ignjatović, Stevan Đenadić, Tomislav Šubaranović, Ivica Jakovljević (2021)
    Renewable Energy, Sustainability and the Environment

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... works on mine benches coal and waste dumps. The application of GIS is especially important in the environment protection area, as it enables active monitoring of the impact of mining operations to environment: air, water and soil quality, determination of the level of risk to human health, flora and fauna ...
    ... authors’ wish to bring closer to the mining public at least a small part of the possibilities offered by GIS, both in mining activities and in environment protection. This paper outlines a methodology for development of a spatial database, that is, a geodatabase, for open pit mines. The geodatabase ...
    ... has been developed in the MS Visio tool. The logical model of the geodatabase was transformed to the physical model for the ArcGIS development environment, which is being used at the Faculty of Mining and Geology in Belgrade for development of GIS applications. Thematic classes presented in this paper ...

  • Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine

    Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina (2015)
    ... was applied. Thereby, it has been stated that both models can be used to calculate the oscillation velocity of the rock mass. Key words: working environment, blasting, seismic effect, oscillation velocity, soil oscillation law 1 University of Belgrade – Faculty of Minig ...
    ... of limestone in the deposit are spatially very uneven (Trajković et al. 2013). By examination of physical and mechanical properties of the working environment, the following results were obtained: - Compressive strength (21.1 to 93.0) MPa - Volume weight (17.1 to 26.3) kN/m3 - Density (0.97 to ...
    ... overlaps with the law of Sadovski, is obtained. Parameters n and K in the law of Sadovsky were determined in two ways - models in a given working environment in the open pit mine "Nepričava". Thereby corresponding functiones have been obtained presenting oscillation velocities of the rock mass depending ...

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... ical Resources in an e-Learning Environment Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Building Terminological Resources in an e-Learning Environment | Ranka Stanković, Ivan Obradović ...
    ... International Conference on e-Learning (eLearning-2012), 27- 28 September 2012, Belgrade, Serbia BUILDING TERMINOLOGICAL RESOURCES IN AN E-LEARNING ENVIRONMENT RANKA STANKOVIĆ, IVAN OBRADOVIĆ, OLIVERA KITANOVIĆ, LJILJANA KOLONJA University of Belgrade, Faculty of Mining and Geology, {ranka|ivano|olja ...
    ... it is included in the blended learning approach at the Faculty of Mining and Geology through an export of its subsets to the Moodle e-learning environment. This paper gives an outline of RudOnto, details about Moodle implementation on the Faculty of Mining and Geology, and describes the mechanism ...

  • Contrastive Analysis of Syntax Patterns in Comparable Football Corpora in Spanish and Serbian Languages

    Jelena Lazarević, Olivera Kitanović (2024.)
    Cilj rada je istraživanje kolokabilnosti kao načina na koji se leksičke jedinice povezuju sa rečima iz različitih kategorija, formirajući veće jedinice. Istraživanje semantičkih i sintaksičkih principa ovih kombinacija u španskom i srpskom jeziku fudbala izvedeno je na komparabilnim fudbalskim korpusima SrFudKo i EsFudko, razvijenim u okviru doktorske disertacije Jelene Lazarević pod nazivom: Jezičke odlike diskursa novih medija o fudbalu: kontrastivna analiza na korpusu srpskog i španskog jezika. Korpus fudbala SrFudKo, kreiran na osnovu tekstova o fudbalu sa pet srpskih veb-portala: ...
    fudbal, korpusi, terminologija, kolokacije, srpski, španski

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... 0/). Keywords: Lignite Greenhouse gases Carbon dioxide Methane Nitrous oxide Science of the Total Environment 800 (2021) 149551 ⁎ Corresponding author at: Department of Natural Environment Biogeochemistry, Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland ...
    ... intensification of climate change and the degradation of the natural environment in many areas of the world has instigated the currently global trend to replace coal with renewable energy sources that are more friendly to the environment and human health (EIA, 2020; IEA, 2020). Due to the changes taking ...
    ... present in lignites depends on the physicochemical changes in the environment. 4. Conclusions The obtained results show that the size and nature of the GHG emis- sions depend on the lithotype of brown coal. The lowest impact on the environment was found in xylitic lignite (with GWP of 3.91 × 10-4 per ton ...

  • The Impact on Karst Aquifer Regimes Induced by a Surface Reservoir in Karst through Multiparametric Analyses (Reservoir Bileća—Herzegovina)

    Saša Milanović, Ljiljana Vasić, Branislav Petrović, Tina Dašić, Veljko Marinović, Petar Vojnović (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... machinery used, the cost of unplanned breakdowns, and the work environment where the technology operates. The distinctiveness of working conditions in the mining industry and the correlations between machines, the work environment, and the environment in general, as well as the impact of unwanted failures ...
    ... everyday occurrences in the mining industry, and they often lead to negative consequences that can have an impact on machines, employees, or the working environment. Such incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing ...
    ... everyday occurrences in the mining industry, and they often lead to negative consequences that can have an impact on machines, employees, or the working environment. Such incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing ...

  • Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo

    Aleksandar Madžarević, Pavle Janković (2022)
    Oblast primene prirodnog gasa je veoma široka. Kao energent može se koristiti za proizvodnju energije u elektranama, toplanama i postrojenjima za kombinovanu proizvodnju energije ili za zadovoljavanje različitih toplotnih potreba u industriji i širokoj potrošnji. Gas se može upotrebiti i kao sirovina u hemijskoj i petrohemijskoj industriji, a tokom poslednjih decenija nalazi primenu i u saobraćaju kao pogonsko gorivo u SUS motorima. Sa ekološkog stanovišta, prirodni gas predstavlja najprihvatljiviji izvor energije u poređenju sa drugim fosilnim gorivima. Pri sagorevanju ...
    distribucija gasa, projektovanje gasovoda, analiza potrošnje

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... the combustion of biomass results in significant benefits for the environment, climate change mitigation, and sustainable development. The obtained results show that wood pellet-based HS has a lower negative impact on the environment and climate change, and at the same time, it ensures the financial ...
    ... .pdf (accessed 20 Sept. 2020). [16] IPCC, Intergovernmental Panel on Climate Change, Climate change (2014). Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the IPCC, IPCC, Geneva, Switzerland.https://www.ipcc.ch/site/assets/uploads/2018/05/SYR_A ...
    ... could reduce emissions by 38% compared with the firewood stove. The results showed that wood pellet furnace has a lower negative impact on the environment and climate change, and at the same time, it ensures the financial benefits through savings and conservation of natural resources. This research ...

  • Long-term rockslope monitoring and rockfall prediction

    Miloš Marjanović, Biljana Abolmasov, Marko Pejić, Jelka Krušić (2021)