Претрага

Упит dcterms_subject_txt:mining technology

467 items

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic

  • 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

  • Могућности и значај коришћења појава природног лековитог фактора на територији Србије у дермокозметици

    Сава Вуковић (2024)
    Сведоци смо да је данас потражња усмерена ка ефикасним производима које нуди дермокозметика јер употреба дермокозметичких производа носи много мање ризике и има далеко мањи токсични потенцијал у односу на дерматолошке лекове. Важно место у дермокозметици заузимају појаве природног лековитог фактора - термалне воде и лековита блата. Термалне / термоминералне воде садрже макро-, микро- и фармаколошко-терапеутске елементе, тј. eлементе у траговима који су доказали своју ефикасност у нези и заштити коже и у побољшању одређених кожних поремећаја. То се ...
    природни лековити фактор, термоминералне воде, лековито блато, дермокозметика, Луковска бања, Бања Риђица
    ... of two Indian major carps, catla (Catla catla) and rohu (Labeorohita) fed diets containing different levels of Spirulina platensis Bioresurce Technology, - Estrada J.P. et al (2001), Antfioxidant activity of difjerent fractions of Spirulina platensis protean extract. VBHNOM y pajloBe OOjaBJbeHc ...
    ... Hostynek J.J., Hinz R.5., Lorenze C.R(1999). Metals and the skin; - BarelA.O., Paye M., Maihach H. (2001), Handbook of Cosmetic Science and Technology; - MitsuiT.(1997). New Cosmetic Science; - _ Čajkovac M. (2004), Koseronornja; - Bynera T., BacwubepMh IL (2001). BuraMMHM y KO3MEČTHUKHM ...
    ... Cp06uje y 0OepokosMemuuyu" 7. JIHTEPATYPA IIyOjriHKoBaHu pajioBH 1. Barel A.O., Paye M., Maihach H.L (2001). Handbook of Cosmetic Science and Technology 2. Baumann L. (2007), Skin aging and its treatment 3. Belay, A et al; (1993): Current knowledge on potential health benefits of Spirulina, ...

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... development as input parameters, to assess supply and demand of energy up until 2050 [35]. ERIS is a multi-regional bottom-up optimization model with technology learning that researches global trends in supply up until 2100 [36]. According to [37] there is also a combination of these different models. Based ...
    ... (strengthening the market, renovating and improving the system, raising storage capacities, intensifying research for new sites and raising use of modern technology of exploitation, etc.) [45,46]. The aim of this study was to investigate the energy security of the potential development of natural gas sector in ...
    ... n [68]. The Company NIS becomes NIS Gazprom Neft after change of ownership in 2009. It introduced a new business course and investment in modern technology [67]. This was defined based on the Agreement of the Republic of Serbia and the Government of the Russian Federation on Cooperation in the Oil and ...

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... 4 Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; snezanat@chem.bg.ac.rs 5 Institute of Chemistry, Technology and Metallurgy, Center of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; ggajica@chem.bg.ac.rs * Correspondence: ...
    ... 4 Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; snezanat@chem.bg.ac.rs Institute of Chemistry, Technology and Metallurgy, Center of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; ggajica@chem.bg.ac.rs Correspondence: k ...
    ... Pedretti, E.F. Calorific Value Determination of Solid Biomass Fuel by Simplified Method. J. Agric. Eng. 2009, 40, 1–6. [CrossRef] 58. Boie, W. Fuel technology calculations. Energietechnik 1953, 3, 309–316. 59. Tsiamis, D.A.; Castaldi, M.J. Determining Accurate Heating Values of Non-Recycled Plastics (NRP); ...

  • Parametri zbijanja komunalnog otpada određeni različitim laboratorijskim metodama

    Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Snežana Bogdanović (2021)
    Zbijanje komunalnog otpada predstavlja jednu od osnovnih faza korišćenja komunalne deponije. Zbog toga je kao i kod drugih nasutih građevina, veoma korisno odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). Dobijeni rezultati mogu da posluže prilikom projektovanja kapaciteta deponije kao i prilikom definisanja obradivosti otpada. U dosadašnjoj praksi najčešći način određivanja parametra zbijanja je standardna metoda (Proktorov opit) koja se koristi u mehanici tla, uz eventualnu redukciju energije zbijanja. Međutim, različiti tretmani komunalnog otpada na ...
    deponija komunalnog otpada, zbijanje, Proktorov opit, malj sa šiljcima
    ... Vol. 136, No. 8., 2010, pp. 1095-1102. Hettiarachchi C.H.: Mechanics of Biocell landfill settlements, Ph.D Dissertation, New Jersay Institute of Technology, Newark, NY, 2005. ltoh T., Тоећаја 1., Kawano Y., Kameda M., Fukvi S., Koelsch F., and Yonai, У : Mechanical Properties of Minicipal Waste Deposits ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine

    Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)
    The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development

  • Репозиторијум дигиталних идентификатора објеката – доиФил: изградња, стање и перспективе

    Милош Утвић, Михаило Шкорић (2017)
    Филолошки факултет Универзитета у Београду је крајем јула 2015. године склопио уговор са агенцијом Crossref и тиме стекао право да својим публикацијама додељује дигитални идентификатор објекта (DOI), као и публикацијама других издавача које заступа. Истовремено, у склопу уговора, Филолошки факултет је развио репозиторијум доиФил који за све регистроване публикације чува њихове библиографске метаподатке, хипервезу ка комплетном тексту и сам DOI. После припремних радњи и разраде процеса на којима је заснован рад репозиторијума, у новембру 2016. године је репозиторијум доиФил ...
    DOI, дигитални идентификатор објекта, Crossref, Филолошки факултет
    ... JabRef, Reference Manager. http://jabref.sourceforge.net/ (приступано 1.3.2019). PHP, http://php.net/ W3C. Standards. Web Design and Applications. XML Technology. Transformation https:// www.w3.org/standards/xml/transformation (приступано 1.3.2019). Литература DOI® Handbook. https://doi.org/10.1000/182 ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...
    ... (приступано 1.3.2019). 90 BIBLIOINFO Miloš Utvić University of Belgrade Faculty of Philology Mihailo Škorić University of Belgrade Faculty of Mining and Geology REPOSITORY OF DIGITAL OBJECT IDENTIFIERS - DOIFIL : THE CONSTRUCTION, STATE AND PROSPECTS Summary University of Belgrade, Faculty ...

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • 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

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... Geological Survey and the Croatian Geological Society 1. INTRODUCTION Plenty of landslide susceptibility models have been developed by using GIS technology within the past three decades. These mod- els have been prepared for various purposes and stakeholders, always intended to serve as an assessment ...
    ... Region, Landslide and flood hazard assessment, Za- greb, Croatia, 207–212. PESHEVSKI, I. (2015a). Landslide susceptibility modelling using GIS technology, Doctoral thesis.− Faculty of Civil Engineering, Skopje, 181 p. PESHEVSKI, I., JOVANOVSKI, M., PAPIC, BR. J. & JOVICIC, L. (2015b): Prep- aration ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...
    Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatori

  • Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine

    Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)
    Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... t of Lignite Open cast Technology in Order to Increase Energy Efficiency and Occupational Safety” (TR 33039), “Developed new methods for diagnosis and examination mechanical strucutures” (TR 35040) and a part of the project “Research on possibility for AT (Advanced Technology) rockbolting application ...
    ... 2016, 18, 142–150. [CrossRef] 19. Tanasijevic, M. A fuzzy-based decision support model for evaluation of mining machinery. In Proceedings of the 48th International October Conference on Mining and Metallurgy, Bor, Serbia, 28 September–1 October 2016; pp. 15–18. 20. Ivezic, D.; Tanasijevic, M.; Jovancic ...
    ... Subaranovic, T.; Ristovic, I. Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining. Energies 2019, 12, 2245. [CrossRef] 23. Karimnia, H.; Bagloo, H. Optimum mining method selection using fuzzy analytical hierarchy process-Qapiliq salt mine, Iran. Int. J. Min. Sci. Technol ...

  • Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils

    Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)
    MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii
    ... the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; ivan.ristic@uns.ac.rs (I.R.); anav@uns.ac.rs (A.T.); a.ranitovic@uns ...
    ... under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by / 4.0/). 1 Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; ivan.ristic@uns.ac.rs (LR.); anav@uns.ac.rs (A.T.); a.ranitovic@uns ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...

  • Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia

    Fen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Analiza primenjenih metoda za transport parafinske nafte

    Dunja Milojević (2024)
    Sadržaj parafina u nafti ima dominantan uticaj na svojstva parafinskih nafti. Taloženje parafina, odnosno taloženje čvrstih čestica parafinskog voska, predstavlja ozbiljan globalni problem tokom proizvodnje i transporta sirove nafte. Samo taloženje voska zavisi od termodinamičkih faktora, poput temperature, pritiska i sastava nafte. Transport nafte cevovodima je uobičajeni proces transporta u naftnoj industriji. Kada prilikom cevovodnog transporta parafinske sirove nafte, dođe do prekida protoka i hlađenja nafte ispod temperature stinjavanja, parafini će kristalisati, pri čemu će doći do, geliranja celokupne transportovane ...
    nafta, parafinski vosak, taloženje, transport, naftovod
    ... Klektrotehnika, 60, str. 606-610. 9. Doeble, K. (2018). Wax Deposition as a Function of Flow Regimes. Norway: Norwegian University of Science and Technology. 10.Elmabrouk Ali Elhaddad, E. (2014). NOV!I MODEL ZA POSTIZANJE OPTIMALNE PROIZVODNJE NA NAFTNOM POLJU AMAL. Beograd: Univerzitet u Beogradu ...
    ... 10-14. 18.Stubsjden, M. (2013). Analytical and Numerical Modeling of Paraffin Wax in Pipelines. Norway: Norwegian University of Science and Technology. 19. Tolmač, J. (2020). Opfimizacija termičkih i hidrauličkih parametara transporta sirove nafte cevima. Zrenjanin: Univerzitet u Novom Sadu ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... of ETS implementation. The literature establishes that an ETS is one of the most effective instruments for the long-term mobilization of clean technology in- vestments, emissions reduction (European Commission, 2021), and other benefits for the decarbonization of the economy while preserving ...
    ... affecting the economy's overall response to carbon pricing are changes in its ability to produce goods and services, driven by ad- vancements in technology, innovations (Dong and Xiao, 2024) or changes in the availability of resources like machinery, workers, and materials (\WWilliams, 2015). However ...
    ... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 ...