Претрага
341 items
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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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Distribution of major and trace elements in the Kovin lignite (Serbia)
Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06
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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 ...... t, C., Zhao, J. “Environmental influences and extinguish technology of spontaneous combustion of coal gangue heap of Baijigou coal mine in China”, 4th International Conference on Energy and Environmental Research, ICEER 2017. Energy Procedia 136, pp. 66-72, 2017. [7] Pandey, J., Kumar, D., ...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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FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain
U radu se daje kratak prikaz teorije semantike okvira, na kojoj je zasnovana leksička baza Frejmnet. Predstavljena je koncepcija ove mreže, kao i mogućnosti njene primene. Predstavljena je i leksička analiza koja se primenjuje u projektu izrade Frejmneta i ukazano na razlike između analize zasnovane na okviru u odnosu na analizu zasnovanu na reči. Zatim je prikazano nekoliko povezanih okvira koje prizivaju reči iz domena rizika. U radu je predstavljena i platforma NLTК pomoću koje se mogu koristiti ...Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović. "FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.1
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Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential
The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објектиNataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić. "Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential" in Applied Sciences-Basel, МDPI (2021). https://doi.org/10.3390/app11062691
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Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data
... technique and Euler deconvolution on Fosmark data.- P-04-283 Nuclear Fuel and Waste Management Co., Stockholm, Swedish, 51 p. REID, A., ALLSOPT, J., GRANSER, H., MILLETTS, A., SOMERTON, I. (1990): Magnetic interpretation in tree dimension using Euler deconvolution.- Geophysics, 50/1, 80-91. ...Vesna Cvetkov, Ilija Vasiljević, Mirko Petković. "Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data" in 5. Hrvatski geološki kongres. Abstract Book 5th Croatian Geological Congress, Hrvatski geološki institut (2015)
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Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...... 439 Chemistry 51(3):396–99. 440 Hill, Alan P. and Robert J. Young. 2010. “Getting Physical in Drug Discovery: A 441 Contemporary Perspective on Solubility and Hydrophobicity.” Drug Discovery Today 442 15(15–16):648–55. 443 Hintze, J. 2001. “NCSS and PASS Number Cruncher Statistical Systems.” ...
... McCarthy, R.J. Hovey, K. Ueno, A. E. Martell. 1955. “Inner Complex Chelates. I. 462 Analogs of Bis(Acetylacetone)Ethylenediimine and Its Metal Chelates.” J. Am. Chem. 463 Soc. 77:5820–24. 464 Paneth, Agata, Anna Hawrył, Tomasz Plech, Mirosław Hawrył, Ryszard Świeboda, Dominika 465 Janowska, Monika Wujec ...
... Polarity as a Tool 479 for Control of Chromatographic Process.” Russian Chemical Bulletin, International 480 Edition 52(1):55–62. 481 Sangster, J. 1997. Octanol-Water Partition Coefficients: Fundamentals and Physical 482 18 Chemistry. Hoboken, NJ, USA: John Wiley & Sons, Inc. 483 Schrödinger ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Production of morphological dictionaries of multi-word units using a multipurpose tool
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansionRanka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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Развој геолошког терминолошког речника ГеолИССТерм
Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić. "Развој геолошког терминолошког речника ГеолИССТерм" in INFOteka: časopis za informatiku i bibliotekarstvo, Beograd : Zajednica biblioteka univerziteta u Srbiji (2011)
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Classification of mining waste landfills according to legislation in Serbia
Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić. "Classification of mining waste landfills according to legislation in Serbia" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2021). https://doi.org/10.5937/tehnika2105575N
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2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem
Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov. "2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/PodRad1934059S
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
... between geology and land- slide hazards of Atchison, Kansas and Vicinity. Current Research in Earth Sciences, 244, 1–16. Joussein E., Petit S., Churchman J., Theng B., Righi D. & Delvaux B. (2005) Halloysite clay minerals – a review. Clay Minerals, 40, 383–426. Kamseu E., Leonelli C., Boccaccini D.N., Veronesi ...
... The use of Tunisian Barremian clay in the traditional ceramic industry: optimization of ceramic properties. Applied Clay Science, 42, 125–129. McManus J. (1988) Grain size distribution and interpretation. Pp. 63–85 in: Techniques in Sedimentology (M.E. Tucker, editor). Oxford, UK, Blackwell. Milošević ...
... temperature on the ceramic properties of clays from Campos dos Goytacazes, Brazil. Applied Clay Science, 27, 229–234. Moreno-Maroto J.M. & Alonso-Azcárate J. (2018) What is clay? A new defin- ition of ‘clay’ based on plasticity and its impact on the most widespread soil classification systems. Applied Clay ...Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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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 ...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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Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households
The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households" in 5th International Scientific Conference ”Conference on Mechanical Engineering Technologies and Applications” COMETa2020, East Sarajevo, 2020, University of East Sarajevo, Faculty of Mechanical Engineering East Sarajevo (2020)
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Sanacija i stabilizacija kosina na površinskom kopu Momin Kamen u cilju izrade deonice autoputa E75, Koridor 10
Kričak Lazar, Abolmasov Biljana, Čebašek Vladimir, Negovanović Milanka, Marjanović Miloš, Pejić Marko, Marković Jovan, Milanović Stefan, Simić Nikola (2017)Kričak Lazar, Abolmasov Biljana, Čebašek Vladimir, Negovanović Milanka, Marjanović Miloš, Pejić Marko, Marković Jovan, Milanović Stefan, Simić Nikola. "Sanacija i stabilizacija kosina na površinskom kopu Momin Kamen u cilju izrade deonice autoputa E75, Koridor 10" in TR33003 (2017)
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Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike
Мирослав Црногорац, Душан Даниловић, Лола Томић. "Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike" in IX Naučno stručni skup Preduzetništvo, inženjerstvo i menadžment Zrenjanin, 24.10.2020. god., Visoka tehnička škola strukovnih studija u Zrenjaninu (2020)
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Efficiency and lifetime of medium voltage transformers
... troškova koji su srazmerni opterećenju: KoeKo +K () u perm prom Stalni godišnji troškovi K, pem MQOgu Sc predstaviti u sledećem obliku: Koem = J · Ki +t,PpeKre (2) perm pri čemu je: /f faktor godišnjih kapitalnih troškova (amortizacija, održavanje i slično), K, su troškovi investicije (nabavna ...
... Of Transformer Operation”, Energy Sources, Part B: Economics, Planning, and Policy, vol. 11 (1), pp. 26-31, March 2016. 2] C.R.,Bayliss, and B. J. Hardy, “Transmission and distribution electrical engineering”, Burlington, MA: Newnes 2003. 3] FIST Manuals, “Permissible Loading Of Oil-Immersed ...Snežana Aleksandrović, Vesna Damnjanović. "Efficiency and lifetime of medium voltage transformers" in XVI International Scientific – Professional Symposium, INFOTEH, Jahorina, 22. mart - 24. mart 2017., Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2017)
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Why classical sequence stratigraphy doesn't work in Pannonian basin?
Dejan Radivojević (2018)Dejan Radivojević. "Why classical sequence stratigraphy doesn't work in Pannonian basin?" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Optimising in electrical energy consumption in mining plants
... izaziva preteran porast napona na motoru zbog samopobuđivanja (5sl. 5). A 5 200 F| – 3 i o Q) Ž 150 , Kriva = magnećenja Š motora 'E 100 o -j < = 50 = o . ~ PA | + — 50 100 150 200 Struja [u % nominalnc vrednosti | Struja kondenzatora: (1) manja od struje motora pri praznom hodu ...
... Standards Publication, BS EN 60034-1, 2010. 7} C. Khanchi and V. K. Garg, “Power Factor Improvement of Induction Motor by Using Capacitors,” Int J Eng Tr and Technol, vol.4, pp.2967- 2971,2013. ABSTRACT Optimising in clectrical energy consumption in mining, in open-pit mines, can be achieved ...Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić. "Optimising in electrical energy consumption in mining plants" in 17th International Symposium INFOTEH-JAHORINA 2018, Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2018)