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Упит dcterms_subject_txt:hydrogeological environment

457 items

  • 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

  • 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

  • Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)

    Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined. The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently ...
    ... TOC), but also certain variations in sources and depositional environment of organic matter (sample D13 - type I kerogen, deposited in freshwater environment; sample D16 - mixed type I/II kerogen, deposited in brackish environment; Gajica et al., 2017). Pyrolytic experiments were performed in open ...
    ... influence on n-alkane parameters and the Pr/Ph ratio is observed. Therefore, OS pyrolysis can be useful for assessment of source and depositional environment of OM. Pyrolysis in the CS caused more intense thermal stress; therefore the source fingerprints notably disappear. The obtained results indicate ...

  • 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

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... Измењено: 2023-10-14 03:28:15 An Integrated Environment for Management and Exploitation of Linguistic Resources Ranka Stanković, Ivan Obradović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] An Integrated Environment for Management and Exploitation of Linguistic ...
    ... Science and Information Technology, pp. 287 – 294 ISSN 1896-7094  Abstract—In this paper we describe two tools that form an integrated environment which can be successfully used for management and exploitation of linguistic resources. Both the tools and the resources were developed ...
    ... forms. In addition to that, dictionaries of compounds named DELAC for the lemma dictionaries and DELACF for their 287 An Integrated Environment for Management and Exploitation of Linguistic Resources Ranka Stanković Faculty of Mining and Geology University of Belgrade, Djušina 7, Belgrade ...

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... component of the development of virtual mobility one objective of BAEKTEL is to foster active learning and better motivation in the academic environment through implementation of new technologies in the teaching process. It is also meant to enhance cooperation among higher education institutions ...
    ... comprises of Moodle and Adobe Connect for eLearning and Adobe Connect for webinars. Moodle (Modular Object-Oriented Dynamic Learning Environment), is a free software e-learning platform, originally developed by Martin Dougiamas, aimed at helping educators create online courses and fostering ...
    ... at facilitating open publishing of materials. BAEKTEL also features a backend control panel offering the possibility within the academic environment for university teachers to track the progress of their students while using the content, and more importantly to study their learning habits ...

  • An oilfield in Libya: A new model to enhance waste water disposal

    Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković (2016)
    нафта, лежишне воде, припрема

  • Agent-based modeling as a support to an expert-based approach: Exploring individual heating systems transition

    Boban Pavlović, Marija Živković, Dejan Ivezić (2022)
    Expert-based energy scenarios are mainly developed following assumptions of experts and, in most cases, a limited number of stakeholders. Such an approach will provide satisfactory results in centrally managed energy sectors where further decisions could be envisaged relatively precisely (electricity production/distribution, district heating systems, etc.). The same approach will provide more uncertain outcomes of future energy structure in the household sector, where decisions related to consumption, selection of energy source, or application of specific technology are made by numerous ...
    Energetska tranzicija, Grejanje domaćinstava, Individualni sistemi grejanja, Energetsko planiranje, Integrisano energetsko planiranje, ABM, LEAP, Srbija

  • From post-disaster landslides inventory to open landslides data

    Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić (2021)

  • Развој модела конструкције просторија отварања рудника са подземном експлоатацијом

    Dražana M. Tošić (2016-08-26)
    Приликом израде подземних просторија у стјенској маси долази до нарушавања природне равнотеже напонских стања стијенског масива који су владали прије израде тих просторија, при чему долази до појаве прертасподјеле напона и његове концентрације у појединим правцима и тачкама, односно долази до појаве пластичних деформација које су праћене ломљењем стијенске масе и кретањима материјала према откопаном простору...
    модел, метод коначних елемената, просторија отварања, напон, дефеормација стијенског масива, алгоритам функционалних зависности

  • Assessment of environmental radioactivity and health hazard at Stara Planina region

    Slavko Dimovic, Boris Vakanjac, Ivana Jelic, Milena Rikalovic, Vesna Ristic-Vakanjac, Radoje Bankovic (2021)
    Циљ студије је био да се процени потенцијални ризик од зрачења у близини напуштених рудника уранијума, јаловишта или лежишта уранијума на Старој планини у Србији. За процену ризика одређено је неколико параметара: активност еквивалента радијума, Raeq, екстерни индекс опасности, Hex, брзина апсорбоване дозе гама зрачења, D, годишња ефективна доза на позадинској експозицији гама гама на отвореном, AEDoutdoor и ризик од рака током живота, ELCR. Добијени резултати су показали да сви узорци, осим једног, имају Raeq вредност и до два ...
    природна радиоактивност, животна средина, здравље, опасност, процена ризика

  • Litijum u mineralnim vodama Srbije – potencijalna lekovita svojstva

    Jana Štrbački (2022)
    Litijum je biološki aktivan mikroelement u ljudskom organizmu: u malim koncentracijama doprinosi pravilnom funkcionisanju pojedinih enzima, hormona i vitamina, dok se u većim, terapeutskim dozama, koristi za lečenje i prevenciju nekoliko psihijatrijskih poremećaja. Eksperimentalno je dokazano da su litijumske mineralne vode bioraspoloživi izvor ovog mikroelementa, u smislu obezbeđivanja njegovog preporučenog dnevnog unosa. Proučavanjem zakonomernosti raspodele litijuma u mineralnim vodama Srbije konstatovano je da barem 50 pojava sadrži koncentracije litijuma potrebne za unapređenje opšteg zdravstvenog stanja ljudi.
    lekovite mineralne vode, hidrogeološka sredina, mikrodoze litijuma, dijetetski suplementi, Srbija

  • Multihazard Exposure Assessment on the Valjevo City Road Network

    Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)
    Prirodni hazardi, izloženost, klizišta, poplave, bujice, GIS, R

  • Some models for determination of parameters of the soil oscillation law during blasting operations

    Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić (2018)
    ... conditions of blasting and geologic characteristics of the soil; all of this being determined on the basis of test blasting for the specific work environment. In the Sadovskii equation two parameters, K and n appear and they are conditioned both by rock mass characteristics and blasting conditions. The ...
    ... Model 3. In doing so, it was noted that all three models can be used to calculate the oscillation velocity of the rock mass. Keywords: working environment; blasting; seismic effect; oscillation velocity; soil oscillation law 1. Introduction As the relation between the soil oscillation velocity and ...
    ... air blast waves, fly rock, etc. Thus, production efficiency is increased and, at the same time, construction and mining facilities, as well as the environment in the vicinity of the blast site, are protected. 2. Soil Oscillation Law To establish the correlation between the oscillation velocity and three ...

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

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... material dangerous for the environment. The polluter, under the legal regulations, shall bear the total costs of measures for prevention and reduction of pollution, including the costs of risks for the environment and cost of elimination of damage inflicted on the environment. Principle "user pays" ...
    ... for the World Economy. Serbian Environment Protection Agency - SEPA. 2012. The State of Soils in the Republic of Serbia, 2011 [Izveštaj o stanju zemljišta u Republici Srbiji, 2011]. Serbian Environment Protection Agency - SEPA. 2016. Agriculture and Environment in the Republic of Serbia [Pol ...
    ... and precaution — every activity must be planned and implemented in the way that: causes minimal possible change to the environment; represents the smallest risk to the environment and human health; reduces spatial burden and consumption of raw materials and energy in construction, production, ...

  • Novi koncept izrade Osnovne hidrogeološke karte Srbije

    Igor Jemcov, Zoran Stevanović, Vladimir Živanović, Saša Milanović, Dušan Polomčić, Veselin Dragišić (2022)
    Osnovna hidrogeološka karta (OHGK) predstavlja bazični dokument u hidrogeologiji, a ima za cilj sagledavanje osnovnih tipova izdani što da omogućava sagledavanje podzemnih vodnih resursa na području obuhvaćenom kartom. Primena postojećeg Uputstva za izradu Osnovne hidrogeološke karte SFRJ 1:100.000 (iz 1984, odnosno 1988. godine), vezana je za brojne poteškoće, što je uslovilo da je u proteklom periodu od 30 godina bilo je više inicijativa za formiranjem novog Uputstva. Sagledavajući postojeću situaciju uz činjenice o savremenim trendovima razvoja hidrogeoloških karata u ...
    Osnovna Hidrogeološka Karta, koncept izrade OHGK, harmonizovana legenda OHGK

  • Prilog poznavanju režima i bilansa voda reke Resave

    Marina Mitrašinović, Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)
    Sliv Resave zauzima područje između reke Velike Morave i obronaka Kučajsko-beljaničkih planina. Sliv i režim ove reke kontroliše se dvema hidrološkim stanicama: Manastir Manasija (slivno područje u iznosu od 388 km2) i Svilajnac (681 km2). Za potrebe analize režima voda reke Resave i uticaja padavina na formiranje oticaja sa njenog sliva preuzeti su podaci o padavinama sa meteorološke stanice Crni Vrh (1037 m nm) koji odslikava režim gornjeg dela sliva ove reke, i meteorološke stanice Smederevska ...
    Hidrogeološke karakteristike, hidrološke karakteristike, režim voda bilans voda, rijeka Resava

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... to Limit values for the noise indicators (LVNI) Greater −2 Disturbs the environment to a greater extent (increase in level of noise at recep- tors between 3 and 4 dB compared to LVNI) Lesser −1 Disturbs the environment to a lesser extent (increase in level of noise at receptors below 3 dB compared ...
    ... since the introduction of SEA as an instrument for evaluating the consequences and impact of particular policies, plans and programs on the environment, with the purpose of ensuring that the principles of sustainable development and environmental protection are fully included in the earliest d ...
    ... including energy and, therefore, in the field of wind energy. Although it is generally ac- cepted that possible negative effects of wind farms on the environment exist, they are considered to be negligible compared with the positive effects. However, they should not be neglected, as indicated by EU Guidance ...

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... "medium",a hypertext; "high", a lesson with multiple-choice exercises providing feedback; "very high", a virtual 3-D environment that enables exploring. Context is the principle environment within which the learning process, that is, the use of the learning object is intended to take place. By selecting ...
    ... implementation in practice and the like. As these resources need to bediscoverable, accessible and shared by potential learners across the learning environment, it is very important that they are well described and tagged in a standard way in machine readable form by metadata. Only then can they be ...
    ... implementation in practice and the like. As these resources need to bediscoverable, accessible and shared by potential learners across the learning environment, it is very important that they are well described and tagged in a standard way in machine readable form by metadata. Only then can they be succ ...