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Упит dcterms_subject_txt:Sustainability and the Environment

2793 items

  • Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases

    Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić (2021)
    Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...
    Šifove baze, Lipofilnost, RP-TLC, Organski modifikatori

  • 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

  • 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
    ... sustain the environment and reach a net zero carbon future. The analysis of the various aspects and processes of CCUS presents the narrative of how feasible countries and energy players need to invest in climate change and energy sustainability as global warming is on the rise and adapt to the new ...
    ... transfer, fluid friction, and energy dissipation with respect to the surrounding environment. The following equations present the exergy loss in different equipment. The exergy loss in each piece of equipment includes the exergy difference between the inlet and outlet. Here, the power consumed in a pump ...
    ... emissions from the atmosphere to have a sustainable environment and to mitigate global climate crises. Research in this work will provide a comprehensive and detailed information regarding the analysis of carbon capture with its emerging and new technologies with the intricacies and challenges ...

  • Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”

    Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić (2015)
    ... in setting out direction angles and error in setting out lengths of traverse legs. The environment enables the use of total station when setting out the designed mine chambers, i.e. of the mine traverse. When carrying out the a priori accuracy assessment, the standard deviation for setting out ...
    ... equipment and pit truck. The loading and transport of the blasted ore from the stope to the appropriate loading place to the pit truck is real- ized by the LHD machine. The ore is transported by the pit truck through the main haulage adit (GIP) to the surface, and afterwards with the same truck to ...
    ... territory of the municipality Milici – Bosnia and Herzegovina (The Republic of Srpska). The ore reserves of the bauxite deposit of "Podbracan" were excavated till 2010 by using the open pit method of mining at the central and northern part of the deposit up to the +410m. Above this level, in the southern ...

  • Classification of mining waste landfills according to legislation in Serbia

    Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić (2021)
    rudarski otpad, jalovina, uredba, deponija, kategorija A, klasifikacija
    ... Alonso, F. Barbosa, M. C. W. Brito, F. V. Laureano, P. May, H. Roeser, and Y. Kakabadse: Impacts of the Fundão https://-ec.europa.eu/-environment/pdf/-wa-ste/mining/mwfs_report_dec_07.pdf https://-ec.europa.eu/-environment/pdf/-wa-ste/mining/mwfs_report_dec_07.pdf https://open.alberta.ca/dataset ...
    ... classify the landfill in the proposed category A. Starting from this issue, this paper explains in detail all the pro- visions of the Bylaw dealing with the terms of classification. It is determined that the landfill is cla- ssified based on the possibility of a potential failure and the character ...
    ... adopting the Bylaw on the conditions and procedure for issuing waste management permits, as well as criteria, characteri- zation, classification and reporting on mining waste in 2017. As the implementation of the Bylaw began in 2020, there are still frequent doubts during the interpretation of the criteria ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... directly aff ected by the environment and the weather. 109 Archaeology and Science 10 (2014)Petković et al - Advantages and Disadvantages of a Parallel...(93-110) BIBLIOGRAPHY Burks, J. 2014 Geophysical Survey at Ohio Earthworks: updating Nineteenth Centure Maps and Filling the “Empty” Spaces, ...
    ... amounts of magnetic minerals from the iron oxide and iron sulphide groups, either organic or inorganic in origin, which cause a diff erence in the magnetic susceptibility of archaeological objects and the environment that surrounds them. The best responses to magnetic data are pro- vided by materials ...
    ... north, and the other group with the acquisition to the south. After separating the traverses by the direction of acquisition, the data was interpolated using the linear Kriging method and displayed as a gradient map of TMI, with the direction of the acquisition to the North (Figure 9.a.), and to the ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... putevi and puti. The second one is restricted to poetical usage and a user can choose to delete it from the expended query if the working text is not of that kind. Figure 2. The original query keyword glava is shown in the upper left corner. The chosen query expansions are shown on the left ...
    ... enrich our lexical resources, first of all the Prolex database since we plan to use it in a translation environment [14]. It is our wish to work in a future with a true aligned Balkan text – that is, a text originally written in some Balkan language and translated to other Balkan languages. ...
    ... most of the cases identified. In the following example the English segment is given only for the sake of translation. Between Omaha and the Pacific the railway crosses a territory which is still infested by Indians and wild beasts ...

  • 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
    ... accordance with the work environment. The result has two dimensions, one is the linguistic description of availability and the other is the intensity of the same. The model can be used as a simple tool in asset management in the sense of machine comparison and weak point analysis [18]. The model will be ...
    ... (work and service environment) coordinates. Partial indicators are reliability, convenience of maintenance from the construction point of view, convenience of maintaining from the logistical point of view, functionality and adaptability, safety (the level of risk to the work and environment). Regardless ...
    ... (structural component), and the level of support. Last mentioned item can be called supportability (S). The goals of supportability engineering are focused on minimizing the cost of ownership [15]. It contains a logistic component of maintainability and impact of the working environment in technical, functional ...

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... emissions, there is still a negative impact on the environment. When assessing this negative impact on the environment, it is important to evaluate RESs from a lifecycle perspective and to consider emissions in the fuel chain and the manufacturing of the energy conversion technology. Indicator ‘‘Lifecycle ...
    ... accomplish the energy goal in the case of Taiwan’s energy sector. The results showed that hydropower, solar energy, and wind energy will contribute to meeting the 3E policy goals (energy, environment, economy). The new fuzzy integrated Delphi-FAHP-PROMETHEE method- ology has been applied (Seddiki and Bennadji ...
    ... efficiency and share of renewables (IRE, 2018). A transition to- wards long-term sustainability in global energy systems based on renewable energy sources (RESs) can simultaneously miti- gate issues such as greenhouse gas emissions, pollution, and the exceeding of critical planetary boundaries (Bogdanov et al ...

  • 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 ...
    ... dictionary management, and enhance the de- velopment environment from singe-user to multi-user. In addition to that, LeXimir did not offer support for complex constraints that the development of large dictionaries with rich information needs. The format used in LeXimir did not support the establishment of ...
    ... to a multi-user environment based on a re- lational database management system. The new lexical data model implemented as a lexical database has various advan- tages over the previously used file-based system. The intro- duced logical constraints will prevent omission of markers and enable their ...
    ... dictionary management LeXimir, in order to sup- port parallel development for a certain period of time, and to enable smooth transition of development environment. The database contains all currently used markers, but these markers have not a “flat” structure anymore, but rather a hierarchical structure ...

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... flooded for much oftheir history, and the unique conditions of the heat and the solute content of the water is thought to account for the formation of the crystals. Ateam ofscientists have discovered imperfections or inclusions within some of the crystals, the liquids in which contain bacteria which may ...
    ... in the 18th century. Earth science began to investigate the air we breathe and the waters that surround our continents; the land itself, the rocks, min- erals, soils, the geographical features such as mountain ranges and deserts; the living creatures with which we share our planet – ...
    ... extend like beams through the air. Temper- atures in the cave vary between roughly 40 and 60 degrees centigrade, and this, coupled with the high humidity and acidity of the atmosphere, mean it is necessary for anyone visiting the Cave to wear a protective “ice suit”. The Caves have been flooded ...

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Испитивање магнетске сусцептибилности прашине антропогеног порекла

    Дубравка Новичић, Весна Цветков, Весна Дамњановић (2019)
    ... Health risks of NO2, SPM and SO2 in Delhi (India). Atmospheric Environment, 39, 6868-6874. [7] Liu, Q., Roberts, A.P. et al. (2012). Environmental magnetism: Principles and applications, Rev. Geophys., 50. [8] Dearing, J. (1999). Environmental magnetic susceptibility, Using the Bartington MS2 System ...
    ... those from nine Hungarian stations. In: Geosciences and Environment. The 3rd International Professional Conference, 27-29 May 2012, Belgrade, Serbia. [3] Pejić, B. (2015). Zagađenje vazduha kao determinanta ekološke bezbednosti Srbije. Zbornik radova - Geografski fakultet Univerziteta u Beogradu ...
    ... 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.rgf.bg.ac.rs Vazduh ...

  • Long-term planning methodology for improving wood biomass utilization

    Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković (2019)
    The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...
    Long-term planning methodology, Forest biomass, MINLP, Backcasting

  • Uniaxial compressive strength test before and after standard fire test on rock mass

    Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)
    ... determined experimentally. It depends on the structure of the rock mass, grain size and orientation, number and arrangement of cracks and fissures. For the same rock, strength may be different, depending on physical characteristics. Heat of environment can affect structure of rock mass, which results ...
    ... compressive strength after standard fire test. The aim of this study was to examine the uniaxial compressive strength of the rock, before and after standard fire test on the rock mass. The paper presents the strengths of the specimens tested before and after standard fire test. KEYWORDS ...
    ... 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.rgf.bg.ac.rs Fifth symposium of the Macedonian Association ...

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... mobile and can cause a number of problems in the environment. Slag is a mineral mixture that consists of ma- terial melted in the combustion process and other parts of non- combustible material. It falls through the latticed stokehole and is rapidly cooled and extinguished in water. The fly ash ...
    ... ash and slag landfills in Serbia occupy an area of 1639 ha and if they are under constant control and monitoring, significantly influence the dis- ruption of the environment, which is reflected in the pollution of: air, soil, surface water and groundwater, vegetation cover, as well as in the steady ...
    ... seams is about 6km2. The northern border is represented by outcropping and erosion of the Main coal seam. The western border of the deposit is a natural extension to the G field and the southern boundary to the E field. The eastern border is also marked by outcropping of the Main coal seam (ŽIVOTIĆ ...

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... et al., 2007). Text preparation, alignment and generation of TMX documents are done within a special-purpose tool ACIDE (Aligned Corpora Integrated Development Environment) (Utvić et al., 2007). The TMX document consists of TU2 (Translation Unit) and TUV (Translation Unit Variant) elements, where ...
    ... be browsed and searched. Browsing the metadata in Serbian and English for the selected project (Baektel) is presented in Figure 2. The user can also access the article in a TMX and PDF format following the links on this page. Further, he/she can open the page with basic data on the selected document ...
    ... search by keywords The user enters the keyword and optionally selects a text collection to search (the default is all collections). Besides the keyword itself, it is necessary to choose the keyword language, and then click on the “Preview and modify terms for query” link. The system uses web services ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... findings present the fundamental work on the prototype arsenopyrite structure and have further implications for studies on ion incorporation into FeAsS structure and its environmental stability and oxidation mechanisms as a source of anthropogenic As release into the environment. Keywords: FeAsS; ...
    ... allows atomic-scale imaging and electron diffraction obtained from the same location within the sample. Using TEM, we explored the arsenopyrite local crystal structure and symmetry, the presence of structural defects and their type, and the structure and crystallinity of the natural oxide layer formed ...
    ... 3b). The chemical composition of the arsenopyrite crystal was analysed inside the TEM chamber by energy-dispersive X-ray spectroscopy (EDS). The quantification was assessed by the Cliff-Lorimer ratio thin section method (four iterations), with the Si-K line as the ratio standard element and line ...

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... well as abundant lamalginite and bituminite observed under the microscope, strongly indicate a microbial mat origin, probably related to Cyanobacteria (Ercegovac and Kostić, 2006) and a subareal and shallow-marine depositional environment. �e predominant maceral in the Gacko coal sample is atrinite ...
    ... Depositional environment and hydrocarbon source po- tential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia). Organic Geochemistry, 115: 93-112. Behar, EF, Beaumont, V., & De B. Penteado, H.L., 2001. Rock-Eval 6 Technology: Performances and developments. Oil & Gas Science and Technology ...
    ... , Walters, C. C. & Moldowan, J. M., 2005. The Biomarkers Guide, Vol. 2 - Biomarkers and Isotopes in the Environment and Human History. Cambridge University Press, Cambridge, 474 pp. Petsch, S. T., Berner, R. A. & Eglinton, T. I., 2000. A field study of the chemical weathering of ancient sedimentary ...