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Упит dcterms_subject_txt:hydrogeological characteristics

419 items

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... a profound understanding of groundwater dynamics, pressure transient phenomena, and hydrogeological characterization during HPP operation. The study highlights the complex and spatially diverse hydrogeological environment, emphasizing the varying reactivity of pore pressure during HPP operation ...
    ... Измењено: 2024-10-16 11:45:40 Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović Дигитални репозиторијум Рударско-геолошког факултета ...
    ... факултета Универзитета у Београду [ДР РГФ] Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP | Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović | Journal of Hydrology, Pirot, 2024 | 2024 | | 10.1016/j.jhydrol ...

  • 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
    ... about char- acteristics of specific location is necessary (solar irritation, wind speed, characteristics of river flow, biomass supply chain, etc.), as well as specific information about the technical characteristics of proposed facilities (efficiency, flexibility, mode of operation, etc.). This requires ...
    ... site-specific and that is not taken into consideration. The costs of electricity production from RESs depend on solar insolation, wind speed, characteristics of water flows, or the biomass supply chain. In addition, except for biomass, all RESs are intermittent in character and demand some kind of energy ...
    ... achievable energy generation from RES for the given system performance, topographic, en- vironmental, and land-use constraints (NRE, 2020). Additional characteristics of RES facility operation such as efficiency, flexi- bility, mode of operation, etc., were taken into consideration to some extent when RES potential ...

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... The latter alloy group may include additional elements to enhance strength, improve structural properties, and achieve specific technical characteristics. These elements include nickel, chromium, copper, molybdenum, and boron. Steel rods are classified by the American Petroleum Institute (API) ...
    ... include relatively high installation costs and electricity consumption when lifting a relatively high volume of fluid. There are also specific characteristics of electric motor operation in rod pumping, including: — The need to overcome initial inertia when starting the motor — The requirement for ...
    ... foundation of this method is the numerical solution of the wave equation for the sucker rod string. This requires knowledge of the pumping unit characteristics and assumed pump operating. conditions in order to define the boundary condit io ns used to create the solution. There are several sources ...

  • Uticaj geološke neizvesnosti u razvoju rudarskih projekata

    Petar Marković, Dejan Stevanović, Mirjana Banković (2023)
    Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...
    ... practice from the aspect of categorization of resources and reserves, as well as the influence of the degree of reliability of the geological characteristics of the deposit on the results of the pit optimization, are shown. The analysis was carried out on an iron ore deposit and is based on the assumed ...

  • Some examples of interactions between certain rare earth elements and soil

    Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski (2021)
    Freundlich adsorption isotherm, sequential extraction, metallic ions, ICP-OES
    ... them using milder agents. It can be concluded that the extracted quantities depend on soil type, nature of extraction agent and metallic ion characteristics. Neodymium, first of all, due to its ionic diameter reacts differently with soil. For that reason the extraction happened only with solutions ...
    ... d more intensive sorption properties, therefore these types of extractions are limited on it, namely this method is not so undemanding. The characteristics (composition) of soil, pH value and extraction solution composition Acce pted M anuscr ipt 10 NIKOLOVSKI et al. are particularly important ...

  • Primena programa UVSZ pri zaštiti od miniranja

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić (2021)
    Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske
    Program UVSZ, miniranje, potres, zaštita životne sredine
    ... equation defines the change of rock mass oscillation velocity depending on distance, explosive amount, conditions of blasting and geological characteristics of rock mass. Oscillations of the particles of rock mass at terrain are felt as shock. Based on application of this equation, we are able to ...
    ... This equation defines the change of rock mass oscillation velocity depending on distance, explosive amount, conditions of blasting and geological characteristics of rock mass. Oscillations of the particles of rock mass at terrain are felt as shock. Based on application of this equation, we are able to predict ...

  • Петрологија црвених пешчара источне Србијe

    Андреј Марковић (2024)
    У источној Србији формација црвених пешчара има велико распрострањење и улази у састав многих планина овог дела наше земље. Формацију чине кластичне стене интензивно црвене боје псамитске, ређе псамитско-псефитске структуре и алевритске структуре. Ове стене леже трансгресивно преко старијих пермо-карбонских и карбонских стена, док навише прелазе у доњотријаске седименте. Формација црвених пешчара захвата два појаса унутар Карпато-балканида – унутрашњи и средишњи део. Узорци анализирани у овом раду део су средишњег појаса. Тема завршног рада је петрологија црвених пешчара источне ...
    источна Србија, црвени пешчар, петролошко-минералошке карактеристике, аркозе
    ... of the rocks is distinctly red conditioned by presence of iron minerals. Key words: Kasfern Serbia, red sandstone, petrological-mineralogical characteristics, arkoses. CAJVP)KAJ KA:107 RRRAAAAAA || 1. OIIMITH Z{EO ..........aaaaaaaaaaaaaaaaaaaaaaaaa av eeeeaaaaaaaaaaaaeteć 2 1.1. T eorpadcKH ...
    ... njihovog stvaranja. Savez geoloških društava SFR Jugoslavije, Referati 6 savetovanja, 2, Ohrid, pp. 217-230. – Protić M. (1967): Sedimentological characteristics of the red Permian and the Lower Triassic (Buntstandstein) series in East Serbia. 8. Kongres Karpato-balkanske geološke asocijacije, 2, Beograd ...

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit

    Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina (2023)

  • Rangiranja bagera za njihovu revitalizaciju primenom višekriterijumske analize

    Ivan Obradović, Dragan Ignjatović, Ranka Stanković, Ljiljana Ivković (2006)
    Obzirom da je na našim površinskim kopovima trenutno u eksploataciji veći broj rotornih bagera sa sličnim tehničkim karakteristikama i približno istom starošću postavlja se pitanje kako rangirati bagere, i kojim redom da se izvrši njihova revitalizacija. Za ocenu stanja i rangiranje ovako velikog broja bagera najpogodnije se pokazalo korišćenje višekriterijumskih metoda sa višeatributnom ocenom, odnosno bodovanje referentnih indikatora stanja bagera na osnovu ekspertske ocene. U ovom radu prikazan je metodološki pristup koji je korišćen prilikom izrade Studije «Produžetak radnog ...
    rotorni bageri, revitalizacija, rangiranje, višekriterijumska analiza
    ... REVITALIZACIJA, RANGIRANJE, VIŠEKRITERIJUMSKA ANALIZA Abstract: Due the fact that numerous bucket wheel excavators with similar technical characteristics and age operate in open pit mines in Serbia at this moment, the questions of their ranking and revitalization priority arises. Estimation of ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... positions, types of injuries, or tech- 2 http://geoliss.mprrpp.gov.rs/term 3 http://rudonto.rgf.bg.ac.rs/ 4 http://rbi.nb.rs/en/home.html nical characteristics of machines, which are often longer MWUs than the less specific terminology of the two other termbases. Two examples from RudOnto can illustrate ...
    ... this: a term for employee position “Geologist for mineralogy, petrology, sedimentology and geochemical research” and a term for technical characteristics of machines “Length of the caterpillar transporting device measured from the vertical excavator rotation axis to the front edge of the caterpillar” ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... subsidence characteristics of the terrain. The embankment mostly lies on the formerly disposed waste, with a smaller part laying on a layer of sand. The base which meanders from 7.5 m to 12 m is composed of marl type rocks. That type of rock is porous but impermeable, in a hydrogeological sense (Šperl ...
    ... base), measurements to determine how much subsurface gas is present (methane, hydrogen-sulfide, carbon-monoxide, carbon-dioxide etc.), and hydrogeological measurements for the quality of the underground water. REFERENCES ALEXANDER, A. (2010) An Overview of Landfill Gas Energy, Landfill Methane ...
    ... line distance was 5 m. Farther scanning on the “test field” was carried out with a goal of getting a better understanding of the geotechnical characteristics. The north-south bearing additional profile lines were shorter in length, with a distance between the electrodes set at 3 m. This was done ...

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... established between displacement vectors azimuth obtained from geodetic points survey and displacement vectors Table 1 PSInSAR images and their characteristics used in analysis Sentinel 1a pass mode Ascending Descending No of images 74 69 Level of processing SLC SLC Acquisition level IW IW Polarization ...
    ... sensing: a review. ISPRS J Photogram Remote Sensing 92:79–97 Ćorić S, Božinović D, Vujanić V, Jotić M, Jelisavac B (17–21 June, 1996) Geotechnical characteristics of old landslides in Belgrade area. In: Senneset K (ed) Proceedings of the 7th international symposium on landslides, vol 2, pp 689–694. Trondheim ...

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... in the Zlatibor Mountains (Dinaridic Ophiolite Belt) west of the Drina-Ivanjica unit yield Late Triassic radiolarian ages. 'The microfacies characteristics of the radiolarites show pure ribbon radiolarites without crinoids or thin-shelled bivalves. Beside thcir age and thc preservation of the ra ...
    ... were incor- porated into the nappe stack becoming sheared forming olistostromal carpets (Festa et al. 2016). To unravel the depositional characteristics of synorogenic sedimentary successions (mćlanges) accompanied by compo- nent analysis provide an excellent possibility to reconstruct the ...
    ... material. We studied more than 10 different radiolarite pebbles of different colours (greenish, reddish, red, violet) for the micro- facies characteristics and the biostratigraphic age. Six radio- larian samples yielded determinable and moderately preserved radiolarian assemblages. Results ...

  • The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis

    Ljiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua (2021)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine

    Dragan Živković (2024)
    Ovaj rad se bavi analizom površinskih deformacija izazvanih zemljotresima u Turskoj iz 2020. i 2023. godine korišćenjem diferencijalne satelitske radarske interferometrije (DInSAR tehnike). Cilj istraživanja bio je da se kvantifikuju i uporede deformacije terena izazvane ovim seizmičkim događajima i da se razumeju mehanizmi koji stoje iza oslobađanja seizmičke energije u regionu. Analizom DInSAR snimaka, identifikovane su različite deformacije duž rasednih zona za svaki zemljotres. Dok je zemljotres iz 2020. godine (M 6,7) izazvao lokalizovane deformacije duž Istočno anatolijskog raseda, zemljotres ...
    DInSAR, Istočno anatolijski rased, Kahramanmaraški trostruki spoj

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... Meglib and Joerg PresI'or 4.1 0.1 lntroduction Despite its small area, Slovenia has a very and complex hydrogeological stfilcture' Therefore different hydrogeological boundaries and characteristics for groundwater bodies and transboundary groundwater bodies wele used for their delineation' 4.10.2 ...
    ... wells which were previously artesian are characterized today by a static groundwater table lower than 10 m below the surface. The conceptual hydrogeological model includes five main acluifer layers to a depth of some 2500m (Figure 4.9.2). The first two (Quaternary and Upper Pliocene), which are most ...
    ... and seminars for local capacity building, and water-saving promotional activities. As one ofthe results of the project, an initial conceptual hydrogeological and hydrodynamical model was created and tested. The results of the conducted survey enabled the proposal of many concrete measures and activities ...

  • 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
    ... These capacities supplied 16% of the electricity to Europe of the total electricity generated in last year [1, 2]|. Table 1 shows the basic characteristics related to electricity production in Germany, Poland and Serbia (population, total installed capacity, installed capacity from coal, gross electricity ...

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... located along the western margin of the Timok magmatic complex. They share many common geological characteristics with the Carlin-type gold deposits in Nevada, USA, including the characteristics of the sedimentary host and the metal association (Au, As, Hg, TI, Sb, and base metals). The fine-grained ...
    ... analyzed and evaluated using the following mathematical and statistical methods: factor impact on the plant characteristics (variance analysis) and correlation analysis of plant characteristics with the use of the statistical package STATISTICA 12 for Windows. Applied mathematical and statistical methods ...
    ... literature data, there are different variations in regard to chemical composition and nutritive characteristics of triticale, as a result of numerous varieties with a huge spectrum of characteristics (Đekić et al., 2009; Djekic et al., 2011b; Filipčev et al., 2005; Complimentary Contributor Copy ...