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Упит dcterms_subject_txt:Fluid Flow and Transfer Processes

2351 items

  • Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)
    ... the main orogen-building processes, the Carpathianssubduction and Miocene slab retreat in the West and East Carpathians have driven the formationof the backarc-convex oroclinal bending in the south and west. The orocline formed duringclockwise rotation of the Dacia mega-unit and coeval docking against ...
    ... We have performed a field structural study in order tounderstand the mechanisms of deformation transfer and strain partitioning around the Moesianindenter during oroclinal bending by focusing on kinematics and geometry of large-scale faultswithin the Circum-Moesian fault system. Our structural analysis ...
    ... of a foreland-convex orocline, situated in the north and east and a backarc-convexorocline situated in the south and west. The southern orocline of the Carpatho-Balkanides orogenformed during the Cretaceous closure of the Alpine Tethys Ocean and collision of the Dacia mega-unit with the Moesian Platform ...

  • Improving efficiency of thermal power plants through mine coal quality planning and control

    Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja (2018)
    Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...
    mine planning, variability of coal quality, simulation, coal blending

  • 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
    ... curves pass through zero and are linear in the entire time interval, only the diffusion 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]. ...
    ... 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 the vacancies ...
    ... diffusion, but also by processes on the surface and diffusion through the internal channels and the vacancies do not significantly effect the entire process. Author Contributions: S.K. participated in conceiving and designing experiments, characterization of samples, analyzing of results and paper writing; ...

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... obtained. Planing of required air flow quantities INVENTS ResNet SimVent VENTEX defining basic network resistance ventilation system estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data ...
    ... approach in system structuring and modeling was used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, constructing and documenting of data on software ...
    ... planing and analysis of the entire ventilation system have been analyzed and checked in detail, INVENTS offers a number of possibilities for the analysis of mine ventilation networks with the help of SimVent. Among these possibilities the following should be stressed: • determining air flow distribution ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... obtained. Planing of required air flow quantities INVENTS ResNet SimVent VENTEX defining basic network resistance ventilation system estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data ...
    ... approach in system structuring and modeling was used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper UML (Unified Modeling Language), as a standard language for visualization, specification, constructing and documenting of data on software ...
    ... planing and analysis of the entire ventilation system have been analyzed and checked in detail, INVENTS offers a number of possibilities for the analysis of mine ventilation networks with the help of SimVent. Among these possibilities the following should be stressed: • determining air flow distribution ...

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG

    Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić (2024)
    CIII-RS-0038, Recon Tethys, DEMONITOR, TMCmod, REASONING

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... post- hoc analyses of past incidents, and transfer of knowledge gained in other circumstances that can be applied in potentially critical situations. Mining organizations need to preserve and transfer knowledge in order to be able to respond to emergencies, and knowledge management (KM) provides ...
    ... References 1. Danihelka, P., Safety and Security Research and its Relation to VŠB-TU Ostrava. Transactions of the VSB-Technical University of Ostrava, Safety Engineering Series, 2012. 7(2): p. 1-5. 2. Vaught, C., et al., Knowledge management and transfer for mine emergency response. International ...
    ... improving intra-business processes, but also at inter-enterprise business processes, in order to secure better performance and interoperability in business networks [11]. The concepts of enterprise ontology and reusable knowledge assets are essential for knowledge management and business intelligence ...

  • Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7

    Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković (2019)
    Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...
    ... solid gneisses and amphibolite have thinner weathering zone and build up morphologically more prominent parts of the terrain. Planar erosion with sporadic linear erosion is present on steep slopes, and products of these processes are deposited at the bottom of the slopes and on the flat parts ...
    ... pr, t1, t2). In small streams there is a mixture of sands, gravel and rarely clays that are often muddy and saturated, but can be well drained. River-terraced plateaus are outside the influence of the Toplica River flow and they are completely stable. On this section, deluvial- proluvial ...
    ... deluvial structures, river-terraced plateaus and spacious torrential areas, distant from the influence of river and stream flow. B - terrains with minor limitations are terrains with conditionally favourable engineering geological characteristics (conditionally stable on slopes). These terrains ...

  • Хазард од клизишта у Србији у 21. веку

    Biljana Abolmasov (2019)
    клизишта, хазард од клизишта, промене климе
    ... current state and pla Landslides 10(1):103�109. [3] Sendai Framework for Disaster Risk Reduction 2015�2030, UNISDR/GE ICLUX EN5000 1 http://edition.www.unisdr.org [4] Cruden D. M.,Varnes D. J. (1996). Landslide types and processes. I Shuster L. R. (Eds). Landslides, investigations and Mitigation ...
    ... nalysis of current state and plé Landslides 10(1):103 109. Sendai Framework for Disaster Risk Reduction 2015 2030, UNISDR/G ICLUX EN5000 1 http://edition.www.unisdr.org Cruden D. M.,Varnes D. J. (1996). Landslide types and processes. Shuster L. R. (Eds). Landslides, investigations and Mitigation. | Transportation ...
    ... ��� (���. earth spread) ������ (���. flowing) ������/����›� ������  ����/ �. �� � (���. rock flow; rock deep creep) ������ ������� (���. debris flow) ������ ��� (���. earth flow) ������ ��� (���. soil creep) ������› �� ›������ (���. complex movement ) ����������� ��� ��� ���� ...

  • 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)

  • Razvoj modela upravljanja cirkulacijom u postupku bušenja korišćenjem neuro fazi sistema zaključivanja

    Seyed Ali S. Razeghi (2022)
    Gubitak isplake predstavlja nekontrolisano isticanje bušaćeg fluida kroz formacije kao što su kaverne, pukotine, ili drugi slojevi. Tradicionalne metode procene gubitka isplake se zasnivaju na primeni seizmičkih podataka ili pronalasku „mesta“ gubitka isplake na osnovu raspoloživih podataka iz susednih bušotina. Međutim, ove metode procene nisu pouzdane.‘ U disertaciji je izvršena analiza i procena uticaja parametara bušenja, geoloških faktora, karakteristika formacije i fluida na gubitak isplake kao i na formiranje fraktura u formacijama. Uspostavljeni su modeli koji podrazumevaju proces obrade ...
    naftna bušotina, gubitak isplake, fuzzy logika, ANFIS model

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... knowledge transfer between academia and enterprises Ivan Obradović, Ranka Stanković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Using technology for knowledge transfer between academia and enterprises | Ivan Obradović, Ranka Stanković | Knowledge and Management ...
    ... The main goal of our approach is to enable knowledge transfer between academia and enterprises by making OER materials from both sources freely available on the web, and thus foster enhanced learning within higher education institutions and life-long learning within enterprises. Students will ...
    ... 792 Using technology for knowledge transfer between academia and enterprises Ivan Obradović*, Ranka Stanković Faculty of Mining and Geology University of Belgrade Đušina 7, 11000 Belgrade, Serbia * Corresponding author ...

  • 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

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station
    ... costs of establishing a recycling yard, i.e. transfer station, • increasing investment and exploitation costs for equipment and labor. 3. PRESENTATION OF TRANSFER STATION „PRELICI“ WITH SELECTION AND RECYCLING CENTER As a part of the transfer station “Prelici”, the following technological units ...
    ... al investigations, transfer station 1. INTRODUCTION Sebia's EU accession implies significant progress in the field of environment, and one step is the construction of a large number of transfer stations. Based on the waste management strategy in the Republic of Serbia and reached agreement to ...
    ... landfills, the construction of the transfer station and the center for selection and recycling of waste is planned at the existing municipal waste landfill „Prelici“ used by the city of Cacak (Serbia). The existing landfill has existed as a dump since 1973, and then it has been placed out of the city ...

  • DFT study of free radical scavenging activity of erodiol

    Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)
    Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...
    депсиде, еродиол, механизми за уклањање слободних радикала, БДЕ, ИП, ПА