Претрага
2222 items
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Testing the energy value of different types of coal by the method of active thermography
In this paper, coal thermograms are presented and analyzed in order to determine their energy value. Two types of coal of different categories, brown and lignite, were selected for active thermographic imaging. The tested coal samples were processed before measurement so that they are similar in dimensions and have two plane-parallel smooth surfaces. The test samples were "primarily" heated under the same conditions and the process of their cooling was monitored by a thermal camera. "Then" they were cooled ...Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Predrag Jovančić, Dragutin Jovković. "Testing the energy value of different types of coal by the method of active thermography" in 9th International Scientific Conference on Defensive Technologies, Belgrade, Serbia, 15-16 October 2020, The Military Technical Institute (2020)
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Pre-failure deformation monitoring as rockfall prediction tool
... Supported by the Ministry of education, science and technological development of Serbia, TR36009. References [1] Erismann T and Abele G 2001 Dynamics of Rockslides and Rockfalls (Springer: Berlin) p 316 [2] Rosser N, Lim M, Petley D, Dunning S and Allison R 2007 Patterns of precursory rockfall ...
... title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd Mechanics and Rock Engineering, from Theory to Practice IOP Conf. Series: Earth and Environmental Science 833 (2021) 012197 IOP Publishing doi:10.1088/1755-1315/833/1/012197 1 Pre-failure ...
... monitoring Mechanics and Rock Engineering, from Theory to Practice IOP Conf. Series: Earth and Environmental Science 833 (2021) 012197 IOP Publishing doi:10.1088/1755-1315/833/1/012197 3 Figure 2. The 2013 point cloud, with sub-selected area of interest and predefined cross-section ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
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Formative evaluation of e-learning projects with the logical framework approach
... that characterizes educational systems in the 21st century, resulting from the merge of different disciplines, such as computer science, communication technology, and pedagogy, since majority of the definitions contained characteristics of more than one discipline [15]. The definitions existing ...
... significant parts of a learning value chain, including management and delivery [17]. E-Learning supports the educational processes utilizing information and communications technology to mediate synchronous as well as asynchronous learning and teaching activities” [18]. Despite the large amount of ...
... evaluation that applicants were required to develop and submit within the mentioned Call. Baektel is an innovative project, the technology platform is implemented on an experimental basis, and is not relevant the analysis of training needs and the courses to be activated, rather the analysis of ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
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Fines quality assessment in all-in aggregates for pavement layers related to different standard procedures
Đokić Olivera, Nikolić Ivanović Mirjana, Tošović Simo, Stefanović Suzana, Milić Bratislav, Rosić Aleksandra ()Đokić Olivera, Nikolić Ivanović Mirjana, Tošović Simo, Stefanović Suzana, Milić Bratislav, Rosić Aleksandra. "Fines quality assessment in all-in aggregates for pavement layers related to different standard procedures" in Bulletin of Engineering Geology and the Environment no. Published online 13 december 2018., Published :2018. https://doi.org/10.1007/s10064-018-01435-5
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Microstructural and magnetic properties of electrospun hematite/cuprospinel composites
Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic MaterialsMira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić. "Microstructural and magnetic properties of electrospun hematite/cuprospinel composites" in Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s10854-020-03526-0
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Permanent GNSS monitoring of landslide Umka
Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...... technology for infrastructure facilities and terrain stability monitoring“, financed by Ministry of Education, Science and Technological Development of the Republic of Serbia, and the collaboration between University of Belgrade, Faculty of Mining and Geology and Faculty of Civil Engineering, Institute ...
... stic landslide points and UAV photogrammetry, has an important role in designing of the technology for landslide activity monitoring and results interpretation. The usage of the single permanent GNSS station provides information on landslide activity at any time moment and defines the spacing between ...
... Ding and Y. Feng, “A demonstrative GPS-aided automatic landslide monitoring system in Sichuan Province”, Positioning, vol. 1(09), 2005. [5] B. Abolmasov, S. Milenković, B. Jelisavac and V. Vujanić, “Landslide Umka: The First Automated Monitoring Project in Serbia”, in Landslide Science and Practice ...Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović. "Permanent GNSS monitoring of landslide Umka" in International Conference on Contemporary Theory and Practice in Construction XIV Stepgrad, University of Banja Luka, Faculty of Architecture, Civil Engineering and Geodesy (2020). https://doi.org/10.7251/STP2014091S
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... 0797761 151 soil organic matter through pH effects on sorption. Environmental Science and Technology, 38: 4361–4368. Zhu L. Z., Ruan X., Chen B. L., Zhu R. 2008. Efficient removal and mechanisms of water soluble aromatic contaminants by a reduced-charge bentonite modified with benzyltr ...
... 2004. Adsorption of phenanthrene on organoclays from distilled and saline water. Journal of Colloid and Interface Science, 269: 265–273. Foth H. D. 1990. Fundamentals of Soil Science. 8th Edition, Canada, John Wiley & Sons. pp. 23. Fusova L. 2009. Modification of the structure of Ca-montmorillonite ...
... G. and Theng B. K. G. 2007. Thermal analysis of montmorillonites modified with quaternary phosphonium and ammonium surfactants. Applied Clay Science. 35: 180–188. Hladik M. L., Roberts A. L., Bouwer E. J. 2006. Chloroacetamide herbicides and their transformation products in drinking water. American ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3
Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)... Belgrade - Department of Mineralogy, Crystallography, Petrology and Geochemistry, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia " University of Belgrade - Laboratory for Material Science, Institute of Nuclear Science „ Pinča“, National Institute of the Republic of Serbia, P.O. ...
... structural changes, and specific surface area were investigated. DTA, X-ray diffraction (XRD), FTIR, and Field emission scanning electron microscopy (SEM) were used to characterize the synthesized samples at room temperature. This work was funded by the Ministry of Education, Science and Technological ...
... Kostić Savetovanje Je podržalo /Supporfed by Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije Ministry of Science, Technological Development and Inovation of Republic of Serbia 59. Savetovanje SHD NH-12 Sinteza i karakterizacija nanostrukturnog Ca.Er,..,MnO. Tijana ...Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić. "Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3" in Book of Abstracts Proceedings / 59th Meeting of the Serbian chemical society, Novi Sad, Serbia, June 1-2, 2023, Belgrade : Serbian Chemical Society (2023)
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Filling of dolines with aeolian sediments in the high-mountain karst of the Dinarides (Mt. Durmitor, Montenegro)
Filling of dolines with aeolian sediments, one of the less frequently described ways in which they are filled, is analysed in the present study on an example of a doline in the high-mountain karst of the Dinarides. There is a series of deep dolines on a broad ridge (about 2450 m a.s.l.) on Mt. Durmitor (Montenegro) in the southeastern part of the Dinarides. The accumulation of very fine-grained sand that almost completely fills one of the dolines was analysed. ...Mirela Djurović, Violeta Gajić, Predrag Djurović. "Filling of dolines with aeolian sediments in the high-mountain karst of the Dinarides (Mt. Durmitor, Montenegro)" in Journal of mountain science, Science Press (2022). https://doi.org/10.1007/s11629-021-7274-5
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Preliminary management and optimization of a gas reservoir in central Serbia
Karović-Maričić Vesna, Danilović Dušan (2010)Karović-Maričić Vesna, Danilović Dušan. "Preliminary management and optimization of a gas reservoir in central Serbia" in Journal of Petroleum Science and Engineering no. 70, 1-2, London-Amsterdam -New York:Elsevier (2010): 107-113
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A comparative case-study on social and public administration aspects on mineral deposits safeguarding in chosen European countries
Andrzej Gałaś, Alicja Kot-Niewiadomska, Vladimir Simić, Michael Tost, Linda Wårell, Slávka Gałaś (2023)Law, Management, Monitoring, Policy and Law, Economics and Econometrics, Sociology and Political ScienceAndrzej Gałaś, Alicja Kot-Niewiadomska, Vladimir Simić, Michael Tost, Linda Wårell, Slávka Gałaś. "A comparative case-study on social and public administration aspects on mineral deposits safeguarding in chosen European countries" in Resources Policy (2023). https://doi.org/10.1016/j.resourpol.2023.103863
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Age and evolution of the Serbian Lake System: integrated results from Middle Miocene Lake Popovac
Sant Karin, Mandic Oleg, Rundić Ljupko, Kuiper Klaudia, Krijgsman Wout. "Age and evolution of the Serbian Lake System: integrated results from Middle Miocene Lake Popovac" in Newsletters on Stratigraphy 51 no. 1, Stuttgart, Germany:Schweizerbart Science Publishers (2018): 117-143
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An efficient class of optimal sixteenth-order root-finding methods and their basins of attraction
Dejan Ćebić, Nebojša M. Ralević (2022)Dejan Ćebić, Nebojša M. Ralević. "An efficient class of optimal sixteenth-order root-finding methods and their basins of attraction" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2022). https://doi.org/10.1007/s10910-022-01371-6
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Application of stochastic models for mine planning and coal quality control
... Planning ... THERMAL SCIENCE: Year 2014, Vol. 18, No. 4, pp. 1361-1372 1363 Figure 1. Long-term and operational variability of SO2 grade mine on the basis of predicted information.The standard optimisation technique widely used in many industrial applications is the linear and integer programming ...
... simplified terms, and subject to cer- Stevanovi}, D. R., et al.: Application of Stochastic Models for Mine Planning ... 1364 THERMAL SCIENCE: Year 2014, Vol. 18, No. 4, pp. 1361-1372 Stevanovic, D. R., et al.: Application of Stochastic Models for Mine Planning ... 1364 THERMAL SCIENCE: Year 2014, Vol ...
... Models for Mine Planning ... 1368 THERMAL SCIENCE: Year 2014, Vol. 18, No. 4, pp. 1361-1372 Figure 4. Field to be mined and the strip sequence by years Stevanovic, D. R., et al.: Application of Stochastic Models for Mine Planning ... 1368 THERMAL SCIENCE: Year 2014, Vol. 18, No. 4, pp. 1361-1372 ...Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković. "Application of stochastic models for mine planning and coal quality control" in Thermal Science, Belgrade : Vinča Institute of Nuclear Sciences (2014). https://doi.org/10.2298/TSCI130201031S
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Improvement of geodatabase queries within GeolISS
Ranka Stanković (2008)... vol. 4, pp. 1103-1106. [11] Krstev C., Pavlović-Lažetić G., Vitas D., Obradović I.: “Using Textual and Lexical Resources in Developing Serbian Wordnet”, Romanian J. Information Science and Technology, Romanian Academy, vol. 7, No. 1–2, pp. 147–161, (2004) [12] Krstev, C., Vitas, D., Maurel, D. ...
... [2], interchange schemes [3], and standards proposed by ISO TC211 [4]. The design is also significantly influenced by the Ontology Web Language (OWL). GeolISS is implemented using ESRI ArcGIS technology [5], and designed to function as a personal geodatabase and SDE enterprise geodatabase on ...
... semantic and multilingual expansions of the query. The Human Language Technology group at the University of Belgrade (HLT) has been developing various lexical resources over a long period, the resources reaching a considerable volume to date [8]. They include morphological e-dictionaries and finite ...Ranka Stanković. "Improvement of geodatabase queries within GeolISS" in Review of the National Center for Digitization, Beograd : Faculty of Mathematics, Belgrade (2008)
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...... Ministry of Education, Science and Technological De- velopment, Republic of Serbia through grant agreements no. 451-03-9/2021-14/200161 (Faculty of Pharmacy), 451-03-09/2021-14/200126 (Faculty of Mining and Geology), and 451-03-9/2021- 14/200026 (Institute of Chemistry, Technology and Metallurgy); National ...
... Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia; danijela@nanosys.ihtm.bg.ac.rs * Correspondence: snezana.savic@pharmacy.bg.ac.rs Abstract: Poor water solubility of new chemical entities is considered as one ...
... with or without surfactants. Being poorly soluble not only in water but also in lipid and organic solvents, DK-I-60-3 could be considered as a brick dust molecule. For substances with these characteristics, amorphization or nanocrystal technology would be the formulation strategy of choice to overcome their ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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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 ...... g. coal, natural gas, renewables, and nuclear energy). Besides, it emphasizes the different nature Pavlović, B., et al.: Availability as a Dimension of Energy Security in the Republic of Serbia THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 325 and origin of threats to some energy system ...
... (demonstrated and inferred) resources that are economically recoverable at the time of assess- Pavlović, B., et al.: Availability as a Dimension of Energy Security in the Republic of Serbia 326 THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 ment. Those are quantities that geologic and engineering ...
... Dimension of Energy Security in the Republic of Serbia 332 THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 of energy sources, renewable energy sources use and technologycal maturity, proposed in this paper, leads to a broader and deeper understanding of the problem of energy availability of ...Boban Pavlović, Dejan Ivezić. "Availability as a dimension of energy security in the Republic of Serbia" in Thermal Science, National Library of Serbia (2016). https://doi.org/10.2298/TSCI160923303P
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Short-term forecasting of PM10 and PM2.5 concentrations with Facebook's Prophet Model at the Belgrade-Zeleno brdo
Filip Arnaut, Vesna Cvetkov, Dragana Đurić, Mileva Samardžić-Petrović. "Short-term forecasting of PM10 and PM2.5 concentrations with Facebook's Prophet Model at the Belgrade-Zeleno brdo" in Geofizika (2023). https://doi.org/10.15233/gfz.2023.40.7
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Dynamics of landslide model with time delay and periodic parameter pertubacions
Kostić Srđan, Vasović Nebojša, Franović Igor, Jevremović Dragutin, Mitrinović David, Todorović Kristina (2014)Kostić Srđan, Vasović Nebojša, Franović Igor, Jevremović Dragutin, Mitrinović David, Todorović Kristina. "Dynamics of landslide model with time delay and periodic parameter pertubacions" in Communications in Nonlinear Science and Numerical Simulation 19 no. 9, Amsterdam, Netherlands:Elsevier (2014): 3346-3361. https://doi.org/10.1016/j.cnsns.2014.02.012
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Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization
Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić . "Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization" in Mineral and Thermal Waters of Southeastern Europe, Springer International Publishing (2016). https://doi.org/10.1007/978-3-319-25379-4