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Упит dcterms_subject_txt:General Engineering

593 items

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... publish and represent a detailed regulation on LRR. Regulation on Compiling Land Reclamation Plan (RCLRP) was issued in 2011, contains 7 parts (general rules, opencast coalmine, underground coal mine, metal mine, petroleum and natural gas (including coal-bed gas), construction projects, and uranium ...
    ... there is one single legislative regime or framework - the national mining law, BBergG (1980) - bringing together all mining operations and the general environmental laws to speed up and simplify the complex planning process. The law in Serbia defines that the Exploitation Holder is obliged to r ...
    ... а у Београду [ДР РГФ] Legal framework for recultivation of degraded areas caused by mining exploitation | Radmila Gaćina | Underground mining engineering | 2023 | | 10.5937/podrad2342027G http://dr.rgf.bg.ac.rs/s/repo/item/0008151 Дигитални репозиторијум Рударско-геолошког факултета Универзитета ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • The influence of rainfall factors on soil resistance to erosion

    Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek (2024)
    rainfall, rainfall factors, erosion, soil

  • Određivanje zbijenosti starog komunalnog otpada

    Jovana Janković, Dragoslav Rakić, Irena Basarić Ikodinović, Tina Đurić (2021)
    Bez obzira na savremene tretmane komunalnog otpada u svetu, u Srbiji je i dalje najčešći vid odlaganja na komunalne deponije, pa zbijanje otpada predstavlja jednu od ključnih faza formiranja deponije. Na ovaj način znatno se smanjuje zapremina otpada, ubrzava proces degradacije i produžava radni vek deponije. Zbog toga su geotehničke karakteristike komunalnog otpada prilikom zbijanja, veoma bitne kako u fazi projektovanja tako i u fazi izgradnje deponije i optimizacije prostora. Tu se pre svega misli na maksimalnu suvu zapreminsku ...
    komunalni otpad, deponija, Proktorov opit, optimalna vlažnost, maksimalna suva zapreminska težina

  • Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)
    Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...
    optimization, O-Pitblast, drilling, blasting, fragmentation size

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • 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
    ... the 5th Int. conference Civil Engineering - Science and Practice / Žabljak, 2014, pp. 1133-1138. Authors’ addresses Miloš Šešlija, MSc, BSc, Civ. Eng., Teaching Assistant University of Novi Sad, Faculty of Technical Sciences, Department of Civil Engineering and Geodesy, Trg Dositeja Obradovica ...
    ... of Civil Engineering and Geodesy, Trg Dositeja Obradovica 6, 21000 Novi Sad, Republic of Serbia Tel. +381 65 440 59 00 E-mail: radovicn@drenik.net Milinko Vasić, PhD, Geo. Eng., Full Professor University of Novi Sad, Faculty of Technical Sciences, Department of Civil Engineering and Geodesy ...
    ... taken for testing, weighing about 20g per sample. 2.4 Mechanical properties of fly ash 2.4.1 Compressive strength – uniaxial strength For a general overview of the ash characteristics as a building material and design of the stability and capacity, the parameters, obtained by determining the ...

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... 1-5 mm. Laminas consist of algal masses with the frequent occurrence of densely glued, grape-shaped accumulations of micrite and intraclasts. A general char- acteristic of the biolithite is its fenestral texture, which is characterised by irregular or lenticular voids that are completely filled ...
    ... limestones (dolomitization is not observed). These limestones consist small amounts of isoluble residue (clay minerals and Fe-oxide/hydroxide). In general, the local appearance of clayey limestone, marly limestone, and marlstone in the form of very thin interlayers (observed in Struganik and rarely ...
    ... Универзитета у Београду [ДР РГФ] Mesozoic carbonate rocks in Serbia used as dimension stone | Vesna Matović, Tijana Vojnović Ćalić | Bulletin of Engineering Geology and the Environment | 2016 | | 10.1007/s10064-015-0722-0 http://dr.rgf.bg.ac.rs/s/repo/item/0008250 Дигитални репозиторијум Рударско-геолошког ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... best-performing membranes. Ideas to improve composite systems by alternate chemistries, re-engineering the material systems, and processing techniques will provide critical insight into the barriers to engineering sophisticated composite systems for future membrane-based CO2 separation [46]. Present ...
    ... and there may be other mechanisms responsible for the warming of about 0.4-0.68 2C observed for the 100 years. Nevertheless, there is almost a general notion that the world cannot wait for exact answers on this subject, and that preventive and mitigating actions must take place concurrently. Because ...
    ... system receives heat and generates work, its thermal efficiency (;)th) is defined as: Tth= W net/Q ' input (5) Where; Q -heat input The general exergy efficiency (Jex) is calculated as the ratio between the exergy gained and the exergy expended: žExergy gained Tl}ex = K ——— (6) žExergy ...

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... G.S.; Viswandham, M.; Gupta, A.V.S.S.K.S.; & Kumar, S.G. A REVIEW OF PRE- COMBUSTION CO2 CAPTURE IN IGCC. International Journal of Research in Engineering and Technology 2013, 2 (5), 847-853. 15. CCS Browser. A guide to CO2 Capture and Storage. Available online: https://www.ccsbrowser.com/# (accessed ...
    ... Arachchige, U.; Ekanayaka, S.; Ruvishani, L.S.; & Jinasoma, N. Review of Post Combustion CO2 Capture Technologies. JOURNAL OF RESEARCH TECHNOLOGY AND ENGINEERING 2020, 1 (4), 8-20. 24. Ben-Mansour, R.; Habib, M.A.; Bamidele, O.E.; Basha, M.; Qasem, N.A.A. Peedikakkal, A.l Laoui, T.; & Ali, M. Carbon capture ...
    ... Stephenson, P.; Sidders, J.; Ramshaw, C.; & Yeung, H. Post-combustion CO2 Capture with Chemical Absorption: A State-of-the-art Review. Chemical Engineering Research and Design 2011, 89 (9), 1609-1624. 26. Webley, P.A. Adsorption technology for CO2 separation and capture: a perspective. Adsorption ...

  • Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina

    Tina Dašić, Ljiljana Vasić (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary Change

  • Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... Razvojno-istraživački centar grafičkog inženjerstva Tehnološko-metalurškog fakulteta, Beograd / Research and Development Centre of Printing Engineering, Belgrade Tiraž/ Circulation 30 primeraka/ 30 copies printing ISBN 978-86-7132-081-8 59. Savetovanje SHD Naučni odbor Scientific Committee ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... mining in karstic terrane; an engineering challenge. In Geotehnical & Environmental Applications of Karst Geology & Hydrology; Beck, B.F., Herring, J.G., Eds.; CRC Press: Boca Raton, FL, USA, 2001; pp. 3–12. ISBN 90-5809-190-2. 2. Milanovic, P. Geological Engineering in Karst; Energoprojekt: Belgrade ...
    ... e impact on the natural status of groundwater and, conversely, the groundwater can affect the structure (the two are in constant interaction). In general, karst areas are risky for constructing underground tunnels, particularly with regard to tunnel stability and water containment [1]. Anthropogenic ...
    ... e impact on the natural status of groundwater and, conversely, the groundwater can affect the structure (the two are in constant interaction). In general, karst areas are risky for constructing underground tunnels, particularly with regard to tunnel stability and water containment [1]. Anthropogenic ...

  • Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study

    Ksenija Micić, Miloš Marjanović, Biljana Abolmasov (2024)
    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 ...
    tečenje drobine, Flow-R, procena podložnosti, empirijski model

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... 1) University of Belgrade, Faculty of Mining and Geology, Belgrade, Đušina 7, +381 11 3219225 2) University of Belgrade, Faculty of Civil Engineering, Belgrade, Bul. Kralja Aleksandra 73, +381 11 3218538 Abstract Debris flows induced by intensive rainfall represent very hazardous phenomena ...
    ... (7):1483-1492. Sosio R, Crosta GB, Hungr O (2008) Complete dynamic modeling calibration for the Thurwieser rock avalanche (Italian Central Alps). Engineering Geology 100 (1-2): 11-26. Takahashi T (2007) Debris Flow: Mechanics, Prediction and Countermeasures. Annual Review of Fluid Mechanics 13 (1): ...

  • Energetska efikasnost elektromotora na površinskim kopovima

    Snežana Aleksandrović, Ilija Jeftenić (2023)

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology