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Упит dcterms_subject_txt:deep well pump

946 items

  • Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US

    Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić (2023)
    Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...
    CO2, емисија, угаљ, термоелектрана, САД, ЕУ-27
    ... sectors is a vital activity for the sustainable development of states, regions, local governments, as well as economic and other organizations. The clectricity sector, its production, as well as its consumption, represents one of the most important elements in the puzzle of satisfying various aspects ...
    ... increased by 26%. Figure 4 shows the diagram of the total production of electricity in the countries of the European Union, as well as the generation of electricity from coal, as well as the share of coal in the energy mix of annual production. It remains an indisputable fact that the problems of climate ...
    ... 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 Production of electricity from coal-fired power plants and ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... 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 Преглед НЦД 12 (2008),65–74 Ranka Stanković (Faculty ...
    ... In GeolISS vectorization of geologic maps is chosen as the approach to digitization of geological structures, namely geospatial data in general, as well as for their digital archiving. Different geological features are expressed by different types of geometry: − Zero-dimensional points are used for ...
    ... account spatial relationships between these geometrical objects such as distances, disjoints, intersects, touches, crosses, overlaps, contains, as well as the computation of lengths and areas. Data retrieval from the GeolISS geodatabase is provided on several levels: − Searching on the level of ...

  • 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

  • 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
    ... the application of the so-called georaft system using "honeycomb" geosynthetic systems, and it is possible and the application of a deep compaction system, or a deep vibrational compression). Considering that subsequent geotechnical research found the existence of municipal waste thickness up to 6 ...
    ... 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 Proceedings SARDINIA2019. © 2019 CISA Publisher. All ...
    ... selection of municipal waste (primary and secondary), area for use and processing of unselected waste (biological treatments, thermal treatments) as well as area for mechanical treatment of waste, which significantly reduces waste volume before final disposal at the landfill, either by shredding or ...

  • Failure Estimation of the Majdanpek Open Pit East Face Based on Inverse Velocity Model

    Miloš Marjanović, Stefan Milanović, Nikola Simić, Lazar Kričak (2024)
    The Majdanpek open pit mine south district is currently active mining prospect of copper ore exploitation in eastern Serbia. Its depth is approaching the termination depth and occurrences of large-scale instabilities and global instability of the final pit slope is possible. These can generate catastrophic mass movement inside an area that encloses a regional road route and the Pek River bed which is channelled along the outer contour of the pit. The displacements that were noted in early 2023, in the ...
    displacement, survey, inverse velocity, open pit

  • Coupling of artificial intelligence methods in the development of hybrid intelligent systems

    Ranka Stanković, Ivan Obradović, Nikola Lilić (2001)
    In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...
    hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije
    ... 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 COUPLING OF ARTIFICIAL INTELLIGENCE METHODS IN THE DEVELOPMENT ...
    ... the main features of an intercommunicating hybrid system for mine ventilation planing and analysis. The architecture of the system is outlined as well as the characteristic of its components. Another hybrid intelligent system is presented in section 4. This is a hybrid system with both function-replacing ...
    ... a novel concept in complex mine ventilation network analysis. INVENTS is composed of a number of integrated software packages, which couple both well known numerical optimization and various artificial intelligence methods. By introducing heuristics into the knowledge base existing mathematical ...

  • Geologic Information System of Serbia

    Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović (2011)
    Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...
    Geologic information system, Conceptual model, Logical model, Implementation, Geodatabase
    ... 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 GEOLOGIC INFORMATION SYSTEM OF SERBIA BRANISLAV ...
    ... GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation of GeolISS has been guided with conceptual and logical model in those specified ...

  • Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach

    Nikola Stanković, Ana Mladenović, Dejan Prelević, Vesna Cvetkov, Vladica Cvetković (2024)

  • Model of the Geomagnetic reference field of the Republic of Serbia

    Spomenko J. Mihajlović, Vesna Cvetkov (2024)

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... the acquired knowledge and all learning materials at one place. Table 1 gives well known platforms in Serbia for OER according learner/teacher could examine curriculum and teaching methodology. Table 1. OER well known platforms in Serbia Name of platform Address 1. Open educational ...
    ... target groups are sometimes inadequate or not well pedagogically adjusted to all stakeholders. In order to make the developed OER adequate to wider community the process 18 Chapter # - will be assigend by editors of OER development should be well planned and done in collaboration with industry ...
    ... 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 Chapter # - will be assigend by editors OPEN EDUCATIONAL ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... resources, as well as their integration [6]. A web application named WS4QE subsequently emerged, based on WS4LR, followed by corresponding web services. Its goal was to make some of the functions related to the develop- ment and use of linguistic resources available on the web as well. As the ...
    ... 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 Proceedings of the International Multiconference on ISBN 9 ...
    ... linguistic resources for Serbian involved, we also describe how the functions of the WS4LR tool can be used for their maintenance and develop- ment, as well as some possibilities for web query expansion of- fered by the WS4QE web application and the use of these ex- panded queries. Application of expanded ...

  • Град Охрид и Извештај о одржаним међународним конференцијама “SDEWES” и “BALWOIS” на Охриду (Македонија)

    Драгољуб Бајић, Јелена Зарић, Весна Ристић Вакањац, Душан Поломчић, Марина Чокорило Илић (2014)
    Представљан је рад SDEWES и BALWOIS конференције које су одржане нa Охриду. Дат је увид у рад и развој ових конференција, као и утисака и искустава учесника, представника Департмана за хидрогеологију, Рударско-Геолошког факултета. Акценат је стављен на секцију која се бави одрживим развојем водних ресурса, уз прилог о самом Охриду због његовог геолошког и хидрогеолошког значаја и чињенице да је познати туристички центар, седиште бројних конгреса и конференција из области вода, управо због своје интересантне историје и природних ...
    Охридско језеро, водни ресурси, туризам

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... essence of its learning content, as well as what are the prerequisites needed for its use, without even seeing the resource itself (Velichová, 2008). As the amount of OER reaches a considerable size, it becomes important that each learning resource is well described and tagged in a standard way ...
    ... 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 Int. J. , Vol. x ...
    ... of organizations is being formed where open educational resources will be published and shared. The main goals to be reached by this network, as well as its salient features are described. Special attention is given to the language support system, which provides for multilinguality of the resources ...

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... 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 The Sixth International Conference on e-Learning (eLea ...
    ... valuable and beneficial institutional and pedagogical implications. When a large amount of OER is reached, it is even more important that they are well described and tagged in a standard way in machine readable form. In that case, results returned by search engines are more relevant, and both ...
    ... ImageObject, AudioObject, VideoObject, and so forth. The LRMI specification proposed classes AlignmentObject and EducationalAudience, as well as properties 1 : alignmentType, educationalAlignment, educationalFramework, educationalRole, educationalUse, interactivityType, isBasedOnUrl ...

  • Infotheca (Q25460443) in Wikidata

    Ranka Stanković, Lazar Davidović (2021)
    Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.
    semantički veb,otvoreni povezani podaci, vikpodaci,Infoteka, metapodaci časopisa
    ... 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 Professional paper Infotheca (Q25460443) in Wikidata UDC ...
    ... semantic web applications. In this paper, we will present an example of integra- tion of Wikidata with digital libraries and ex- ternal systems, as well as the potential for speeding up the process of data preparation and entry using the articles published in In- fotheca, Journal for Digital Humanities ...
    ... comprehensible data on the web. In this paper, we will present an example of integration of Wikidata with digital libraries and external systems, as well as the potential for speeding up the process of data preparation and entry using the articles published in In- fotheca, Journal for Digital Humanities ...

  • 3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia

    Saša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac (2013)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Energetska bezbednost sektora prirodnog gasa Srbije

    Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac (2023)
    U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...
    N-1, IDUPS, energetska bezbednost, sigurnost snabdevanja
    ... of supply, as well as the degree of structural development, compared to the foreseen strategic development plans, respectively. This paper also presents a new methodology for determining the impact of system readiness and the number of sources and directions of supply, as well as their mutual ...
    ... 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 Formular za prijavu apstrakta za 36. Međunarodni kongres ...
    ... natural gas sector, the difference compared to earlier periods and the potential trend of assessing the security of natural gas supply to Serbia, as well as its vulnerability to interruptions in international supply chains. Through the paper, an analysis of the energy security of the natural gas sector ...

  • Formative evaluation of e-learning projects with the logical framework approach

    Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković (2015)
    ... 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 The Sixth International Conference on e-Learning (eLea ...
    ... phase. This last purpose is increasingly important for all the stakeholders of e-learning projects (i.e. universities, companies, communities, as well as students and employees), due to a global and highly competitive environment. Evaluation of e-learning projects takes into account the benefits ...
    ... proposes and promotes the adoption of the Logical Framework Approach, in the designing phase of the E- Learning Project. It enables the proposers, as well as an external evaluator, to evaluate the project by assessing its coherence, that is the validity of the logical and causal links among activities ...

  • Development of integrated fuzzy model for mine management optimization

    Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)
    fuzzy logika, višekriterijumsko odlučivanje, ocenjivanje eksperata
    ... working: areas required supporting, in places of well- developed caverns. The overlying rocks are Senonian limestones, with numerous fracture systems, similar to those in the underlying: rocks because of their com- mon structural evolution. They, too, are well stratified and the thickness of the strata ...
    ... 2 shows the scores of the alternatives relative to each criterion, as well as the weight coefHcients. Additionally, triangular fuzzy numbers are used to show the comparison of all alternatives relative to set criteria, as well as calculated weights. 'The final scores of al] the alternatives, in ...
    ... 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 Zlokjtay;i Ha B'bzrapckara akajieMuH Ha HayKuTe Comptes rendus ...

  • Application of Peleg model on mass transfer kinetics during osmotic dehydratation of pear cubes in sucrose solution

    Vesna Pavelkić, Tanja Brdarić, Marija Petrović, Gavrilo Šekularac, Milica Košević, Lato Pezo, Marija Ilić (2015)
    The applicability of Peleg model was investigated for predicting mass transfer kinetics during the osmotic dehydration (OD) process of pears, at different concentrations (40, 60 and 70%, w/w) and temperatures (20, 35 and 50 °C) of sucrose solution. Increase in sucrose solution concentration resulted in higher water loss (WL) and solid gain (SG) values through the osmotic treatment period. After 360 min of osmotic treatment of pears, WL ranged from 23.71 to 31.68% at 20 °C, from 24.80 to ...
    осмотска дехидрација, крушкa, кинетика, температурни ефекат, Пелег модел