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Упит dcterms_subject_txt:Library and Information Sciences

2413 items

  • 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

  • Дигиталне библиотеке у рударству и геологији са посебним освртом на представљање сиве литературе

    Биљана Лазић, Александра Томашевић, Михаило Шкорић (2019)
    Имајући у виду потребу за проналажењем информација похрањених у различитим облицима документације која се генерише у областима рударства и геологије на Рударско-геолошком факултету Универзитета у Београду, отпочет је процес развоја дигиталне библиотеке ROmeka@RGF, на платформи за приказивање дигиталних колекција - Омека. Значајан део документације представља такозвана сива литература која је претежно заступљена у виду вишетомне документацијe. Први савладани изазов представљало је повезивање различитих вишетомних делова пројектних извештаја у једну целину која би била лако доступна и претражива.
    дигиталне библиотеке, сива литература, Омека, језички ресурси, речници
    ... Dominic Farace, Joachim Schöpfel (ур.). Grey Literature in Library and Information Studies. Amsterdam: Walter de Gruyter, 2010. 1-9. Krstev, Cvetana, Ranka Stanković, Duško Vitas, Ivan Obradović. “The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines”. Sixth ...
    ... THE GRAY LITERATURE Summary Having in mind the need for information retrieval in different types od documentation wihich are produced in domains of mining and geology, we started developement of an digital library at the Faculty of Mining and Geology University of Belgrade. Very significiant part ...
    ... Project“. Library Philosophy and Practice, 706 (2012) Веб. 10. 11. 2018. Stanković, Ranka, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić. “A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals”. Eighth International Conference on Language Resources and Evaluation ...

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... Academy of Sciences, Sofia  Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, Sofia  National Museum of Natural History, Bulgarian Academy of Sciences, Sofia  Sofia University “St. Kliment Ohridski”, Sofia  University of Mining and Geology “St ...
    ... a mixture. As some of the slabs have rolled and rough edges they may be regarded as illite and/or halloysite. Morphology varies from short tubular, spheroidal and elongated tubules, which are the most common. EDS data confirmed hydroxides of illite and iron. Illite minerals deposited from formation ...
    ... Management and Events Ltd., Sofia Printing House: Bulged, Sofia 1505 Editors: Ruslan I. Kostov, Radostina Atanassova ISBN 978-954-92875-6-1 © Earth and Man National Museum, 2021 © Bulgarian Mineralogical Society, 2021 9th International Conference Mineralogy and Museums ...

  • Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study

    Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)
    Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...
    Pharmaceutical Science
    ... Tu. 'European Journal of Pharmaceutical Sciences 189 (2023) 106557 Fig. 5. Scanning electron microscopy images of freeze-dried nanocrystalline dispersions: with trehalose (T) (left); with trehalose and mannitol T+M 1 + 1 (middle) and with trehalose and mannitol T+M 3 + 2 (right). The magnification ...
    ... simultaneously as cryoprotectants and lyoprotectants, they will be referred to as lyoprotectants in the 'European Journal of Pharmaceutical Sciences 189 (2023) 106557 remainder of the manuscript. The focus of this research was to establish process and formulation parameters in freeze-drying ...
    ... 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 European Journal of Pharmaceutical Sciences 189 (2023) 106557 Contents lists available at ...

  • 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)
    rekultivacija, ugalj, održivi razvoj, višekriterijumsko odlučivanje, VIKOR

  • Determination of surface minority carrier mobility in p-HgCdTe

    Damnjanović Vesna, Elazar Jovan (2011)

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... as atmospheric conditions, geographical location, and terrain morphology, the ArcGIS SAT enables the calculation of solar energy potential over a given space and for a specified time interval. The output is a solar map which contains information regarding the quantity of insolation/solar radiation ...
    ... Such solar resource calculation and mapping integrated into the SAT is developed 326 by Fu P. and Rich P.M. (in 2000). This tool, which is based on solar geometrical theory, counts incoming solar radiation for each pixel of a DEM. The DEM provides information about the morphology of the area ...
    ... 2019a). Corine means “coordination of information on the environment” and it is a prototype project working on many different environmental issues. As described on the website, Copernicus Land Monitoring Service (CLMS) provides geographical information on the land cover to a broad range of ...

  • Machine Learning and Landslide Assessment in a GIS Environment

    Marjanović Miloš, Bajat Branislav, Abolmasov Biljana, Kovaćević Miloš (2018)

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... instrumentation with load cells and position sensors, a pump shut-off control device, a control panel, and a motor drive, and in some cases, a variable-speed drive. Additionally, a radio for receiving and sending information to/from SCADA (Supervisory Control and Data Acquisition) systems is required ...
    ... monitoring and diagnostic systems for deep well pumps. Ensure that models operate in real-time and provide useful information for decision-making. 5. Monitoring and Maintenance: Continuously monitor model performance and make updates as needed. This includes retraining: models with new data and adjusting ...
    ... the best algorithms and their configurations for a given dataset. This is useful because there are many options and parameters to choose from. AutoML uses various optimization techniques to find the best combination of algorithms and settings.In this study, the TPOT library was used. TPOT is a ...

  • 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

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... Serbian SS is very low and additional activities in oil and gas exploration should be undertaken. Diversification Diversity index provides more information than simply the number and amount of en- ergy sources used. It serves as valuable tool to quantify diversity in a community and describe its numerical ...
    ... engineering information indicates that can be recov- ered with reasonable certainty in the future, from known or identified energy resources and under existing economic and technical conditions [8]. Values of this indicator represent the number of remaining years until the exhaustion of reserves, with the ...
    ... 2016 © 2017 Society of Thermal Engineers of Serbia Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions ...

  • Comparative measurements carried out in the paleomagnetic laboratories of tree countries

    Lesić Vesna, Márton Emo, Scholger Robert, Cvetkov Vesna, Tomić Dragana (2014)

  • Modelling of characteristics of crater emerged from the surface explosion on the soil

    Bjelovuk I., Jaramaz S., Elek P., Mickovic D., Kričak Lazar (2015)

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (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 ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability

  • Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation

    Maja Franković, Nevenka Novaković, Vesna Matović (2015)
    The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...
    Krečnjak, mapiranje, Indeks raspadanja, brzina raspadanja, progresija
    ... tive procedure that provides comprehensive information on the type and distribution of changes on the stone surface pro- duced by the weathering processes (Fitzner et al. 1992; Siegesmund et al. 2002; Svahn 2006; Doehne and Price 2010). In order to map those changes, characterization of stone ...
    ... 1997a, b, Hein- richs and Fitzner 2000, 2007; Fitzner and Heinrichs 2002; Rothert et al. 2007). Also, it was used as reference for a number of researches on techniques for assessment of stone decay (Ball and Young M 2000; Turkington and Smith 2004; Kukela and Seglins 2011). Based on quantitative ...
    ... damage indices (Fitzner and Heinrichs 2002). Pro- posed linear and progressive damage indices and mapping results enable: @ Springer Environ Earth Sci (2015) 73:6181–6193 Quantification of damage intensities and damage cat- egories that allow conclusive quantification and rating of stone damage ...

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...
    ... . Denis Maurel, Nathalie Friburger, and Iris Eshkol- Taravella. 2014. Enrichment of Renaissance Te- xts with Proper Names. INFOtheca: Journal of Information and Library Science, 15(1):15–27. Maciej Modrzejewski, Miriam Exel, Bianka Busch- beck, Thanh-Le Ha, and Alexander Waibel. 2020. Incorporating ...
    ... annotated with POS, lemmas, and NE in a format agreed by the COST action. Acknowledgments This research was done in the scope of the COST action CA16204 “Distant Reading for European Literary History”. We thank the stu- dents of the Department of Library and Infor- mation Sciences, Faculty of Philology, ...
    ... master students of Social Sciences and Computing at Multidisciplinary Graduate Studies and PhD students of Intelligent systems program (Uni- versity of Belgrade) for their help in evaluating the data. 15Encoding Guidelines for the ELTeC: level 2, https://distantreading.github.io/Schema/ eltec--2.html ...

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција