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Упит dcterms_subject_txt:Paleontology,Earth-Surface Processes,Ecology

397 items

  • Korelacija magnetnog susceptibiliteta i sadržaja metala u flotacijskom jalovištu

    Filip Abramović, Vesna Cvetkov, Aco Ilić, Dragana Životić (2022)
    Procena metala u rudama, jalovištu i zemljištu se tradicionalno određuje hemijskim metodama kao što su Rengen fluorescentna analiza (XRF), Instrumentalna neutronska aktivaciona analiza (INAA) i Masena spektrometrija induktivno spregnute plazme (ICP-MS). Neke od pomenutih metoda su veoma zahtevne i skupe, te se nametnula potreba ka traženju jeftinijeg alata za brzu procenu prisustva pojedinih metala. Tokom poslednjih nekoliko decenija, mnoge studije su pokazale da su magnetna merenja dovoljno osetljiva da detektuju magnetni signal feromagnetnih materijala, a samim tim i metala ...
    flotacijsko jalovište, makroelementi, magnetna merenja

  • Anthropogenic impact on the groundwater regime: Case study of the Velika Morava alluvium

    Jovana Mladenović, Vesna Ristić Vakanjac, Milan Kresojević, Boris Vakanjac, Jugoslav Nikolić, Dušan Polomčić, Dragoljub Bajić (2023)
    The Velika Morava River originates at the junction of the Južna Morava and Zapadna Morava at the town of Stalać in Serbia. It is 185 km long and empties into the Danube. The Velika Morava River Basin occupies a land area of 37 444 km2. The river flows through central Serbia, which features the most fertile land and the highest population density in the country. Public water supply in this region of Serbia relies on groundwater formed in alluvial ...
    hydrology, surface water regime, groundwater regime, the Velika Morava River

  • Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia

    Maja Milošević, Mihovil Logar, Biljana Đorđević (2021)
    ... of tested samples of clay pottery, there are a couple of conclusions. Observed difference in the surface colour, the appearance of bumps and bulges, horizontal lines or their absence, smooth surface and the presence of irregularities are the main indicators for assessing differences in the production ...
    ... territory of Serbia. What makes it a unique phenomenon, in technological terms, is the fact that with the discovery of new techniques and production processes, the old ways, already adopted and mastered continued to live and actively coexist until today. This also brings a rise in imitations of pottery ...
    ... g procedure. Sample -1- has slightly higher water absorption than the the rest of the samples. Differences in terms of manufacture processes and their characteristics are evident and should be emphasized for better understanding and awareness of the cultural heritage that is traditional ...

  • Tektonska evolucija severoistočnih Dinarida

    Nikola Ranđelović, Branislav Trivić, Nemanja Krstekanić, Bojan Kostić, Uroš Stojadinović (2022)
    ... one of the key regions to study the deformational evolution of the distant Adriatic margin, which is essential for understanding the geodynamic processes controlling the Adria-Europe convergence. In order to distinguish main deformation phases in the Internal Dinarides and determine their controlling ...
    ... with significant variability in fold-axis orientation. The second observed deformation phase is related to Middle Jurassic to Eocene convergent processes between Adriatic and European derived continental units during the closure of the intervening Neotethys/Vardar Ocean. Firstly, the NE-SW oriented ...

  • Towards more sustainable district heating systems in Serbia - Options and obstacles

    Marija Živković, Boban Pavlović, Dejan Ivezić, Miloš Tanasijević, Dejan Stojanović (2024)
    The major share of energy consumed in the building environment is dedicated to meeting heating needs, which makes this sector one of the key players in the transformation of the whole energy system. The accurate approach to the transition process assumes acting on both the demand and supply sides. Lately, the supply side has received more attention, as its transformation is one of the key steps of the energy transition process. District heating systems are recognized as substantial contributors ...
    energetska tranzicija, daljinsko grejanje, dekarbonizacija, obnovljivi izvori energije, prepreke, Srbija

  • Dynamics of simple earthquake model with time delay and variation of friction strength

    Kostić Srđan, Vasović Nebojša, Franović Igor, Todorović Kristina (2013)

  • Classification of some significant occurences and mineral, thermal, and thermomineral water deposits of Bosnia and Herzegovina according to V.V. Ivanov classification

    Krunić Olivera, Jovanović Tomislav, Sorajić Stanko, Dokmanović Petar (2011)

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... which corresponding terms in the parallel list of terms were available, were selected from the following specific domains: computer science, earth, ecology, engineering, geology, a total of 803 synsets.The experts were expected to perform the following three tasks: • post–edit Serbian version of ...
    ... standard technology terms used across Microsoft products, and comprises 13,147 aligned terms for Serbian. Additional bilingual lexicons from domains of ecology, psychology, sport and mathematics were compiled from various on-line resources and textbooks and used for generating lists of translational equivalents ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... fashion. Igneous processes are also responsible for the formation of diamonds, a mineral with generally very high financial viability. Crystallising under very high pressure at depths of almost 200km below the Earth's surface, this form of carbon is carried to the surface via kimberlite pipes ...
    ... unsurprisingly channe!l noun a passage along which surface water and groundwater flows detrital load nounload that is formed of rocks, minerals, and sediments divide nouh a narrow tract of high ground that separates two drainage basins or surface wa- ters flowing in opposite directions; synonyms: ...
    ... end product to make extraction and processing financially viable. This property is also described in terms of the mineral's grade. The various processes through which ores are formed – magmatic / igneous, hydrothermal, sedimentary, metamorphic – resultin a range of ores which can serve different ...

  • 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
    ... and capturing CO2 by oxy-fuel (Figure 1). Figure 1. Simplified illustration of the main carbon capture processes [6] 2.1. Capturing from industrial process stream Industrial processes are significant emmiters of CO2, comprising about 23% of global emissions [7]. CO2 has been captured for decades ...
    ... illustration of oxy-fuel combustion [19] 253 3. TECHNOLOGICAL PROCEDURES FOR CAPTURING CO2 There are various conventional technological processes for capturing CO2 such as: absorption, adsorption, cryogenic distillation and membrane-based separation. These technologies are described and discussed ...
    ... of CO2 from synthesis gas which is used in the production of hydrogen, ammonia, and methanol [21-22]. There are a number of physical absorption processes with different existing commercial physical solvents: Selexol (dimethylether of polyethylene glycol), Resticol process (methanol), Fluor process ...

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • 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
    ... Callaghan, A.V., Wawrik, B., Turich, C., Ashby, M., 2011. Biogeochemistry of microbial coal-bed methane. Annu. Rev. Earth Planet. Sci. 39, 617–656. https://doi.org/10.1146/annurev-earth-040610-133343. Szafranek-Nakonieczna, A., Zheng, Y., Slowakiewicz, M., Pytlak, A., Polakowski, C., Kubaczynski, A. ...
    ... anddirection of biological processes. However, with the end of mining operations and cessation of drainage works, most mine workings will naturally be flooded with water. This may lead to the restoration of anaerobic conditions in the deposit and the re- activation of processes the lead to the formation ...
    ... of the State Geological Institute. Geol. Q. 35, 207–220. Cole, J.J., Prairie, Y.T., 2014. Dissolved CO2 in freshwater systems? Reference Module in Earth Systems and Environmental Sciences. Elsevier https://doi.org/10.1016/b978- 0-12-409548-9.09399-4 DeAngelis, K.M., Allgaier, M., Chavarria, Y., Fortney ...

  • Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal

    Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)
    glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo
    ... adsorption process in general includes three processes: (1) migrating the pollutants from the solution to the surface of the adsorbent and forming the film on the surface; Minerals 2018, 8, 246 16 of 21 (2) adsorption at appropriate active centers on the surface; (3) diffusion into internal channels and ...
    ... influence on the total rate of the pollutant removal. Otherwise, in addition to diffusion, all the mentioned processes occur, and the overall rate is influenced by the processes on the surface and the diffusion [67]. Table 8. Characteristic parameters of the intra-particle diffusion kinetic model for ...
    ... internal channels and vacancies. Since that almost all amounts of MB were removed from the solution by processes which occur on the surface of the adsorbents, it can be concluded that these processes are the most responsible for the overall reaction rate and diffusion through the internal channels and ...

  • Projection of SO2 emissions in coal power plants in Serbia

    Aleksandar Madžarević, Predrag Jovančić, Stevan Đenadić, Filip Miletić, Miodrag Ristović, Miroslav Crnogorac (2023)
    The production of electricity in the countries of South-Eastern Europe (SEE) was mainly related to the use of coal, predominantly lignite. The total installed capacity of thermal power plants using coal in these seven countries is 17.813 MW, distributed in 31 thermoblocks. The mentioned plants are the dominant pollutant emitters in all observed countries. Data on the largest emitters in the countries of the European Union and a comparison with SEE countries were collected. The calculation of emissions of ...
    енергeтика, емисије, СО2, угаљ, електране
    ... eps.rs/lat/Stranice/Kapaciteti-ElEn.aspx . Official Journal of the European Union, European Coal Database - Europe Beyond Coal, 2023. . EXtreme ECOlogy - Ekstremna ekologija. Available online: https://xeco.info/xeco/odzak/ . SO> Europe emitters, 2022. Available online: https://ember-climate.org/ ...
    ... made with the emitters from EU countries with a special Jocus on SEE countries. The projections of future SOx emissions from new wells in parts of surface mining intended Jor exploitation was given. Keywords: energy, emissions, SO», coal, power plants 1. INTRODUCTION Reducing emissions of pollutants ...

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... business organization manages both knowledge assets and processes related to these assets, where knowledge assets represent the knowledge this organization possesses or needs to acquire in order to improve its performance. Within knowledge processes, knowledge generation comprises of knowledge acquisition ...
    ... business partners’ networks both within the country and abroad. Thus ICT support is needed not only within intra-business processes, but also within inter- enterprise business processes, in order to secure better performance and interoperability in business networks (Albani & Dietz, 2006). The concepts ...
    ... general and more specific terms, such as "coal mine", and "open pit", which is a specific type of coal mine, also with synonyms such as "opencast", "surface mine", and "quarry". One example of development of mining ontologies has been reported by Cheng et al (2011). Interesting results on ontology-based ...

  • Effects of Energy Production and Consumption on Air Pollution in Serbia

    Marija Živković (2019)
    Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...
    energy related emissions, Serbia
    ... biomass with 6%. Fossil fuels and biomass make more than 85% of the primary energy need to be transformed to heat and/or electricity through combustion processes 3, which are the main sources of atmospheric pollution 4. The need to control atmospheric emissions of greenhouse and other gases and substances leads ...
    ... emissions. It is estimated that 85% of particulate matter and almost all of the sulfur oxides and nitrogen oxides are consequences of combustion processes 4. These pollutants are responsible for the most of negative impacts of air pollution, directly or after they are transformed into other pollutants ...
    ... sectors, since they are seen as the main sources of air pollution in urban areas due to a great number of uncontrolled or poorly controlled combustion processes. 2.ENERGY CONSUMPTION AND PRODUCTION IN SERBIA Data on energy consumption: by fuel and by activity are the bases for determination of pollutants ...

  • Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2024)

  • Uticaj ekstremnih procesa na rizike površinske eksploatacije

    Natalija Pavlović, Tomislav Šubaranović, Dragan Ignjatović (2022)
    Nepredvidivi ekološki negativni slučajni procesi mogu uticati na geo-tehnički sistem pri površinskoj eksploataciji ležišta mineralnih sirovina, što u velikoj meri uvećava rizike i ugrožava realizaciju proizvodnje. Kvantitativna analiza sa proračunom verovatnoća pojava ovakvih ekstremnih događaja i procenom odgovarajućih ekonomskih posledica, posebno u uslovima globalnih klimatskih promena, omogućava definisanje rizika i optimizaciju parametara sistema površinske eksploatacije.

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... g acidophilic bacteria, Journal of Microbiological Methods 23: 205-218. 42. Johnson D.B. (1998) Biodiversity and ecology of acidophilic microorganisms, FEMS Microbiology Ecology 27: 307-317 43. Johnson D.B., Okibe N., Hallberg K.B. (2005) Differentiation and identification of iron-oxidizing ...
    ... Microbiology and Biotechnology 16: 135-138 4. Baker B.J., Banfield J.F. (2003) Microbial communities in acid mine drainage, FEMS Microbiology Ecology 44: 139-152 5. Beškoski V.P., Papić P., Dragišić V., Matić V., Vrvić M.M. (2009) Long term studies on the impact of thionic bacteria on the global ...
    ... extremely acidic environments revealed by a combined cultivation-based and culture-independent study of two stratified pit lakes, FEMS Microbiology Ecology 87: 237-243 115 33. Fu B., Zhou H., Zhang R., Qiu G. (2008) Bioleaching of chalcopyrite by pure and mixed cultures of Acidithiobacillus ...