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Упит dcterms_subject_txt:Control and Systems Engineering

2382 items

  • Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia

    Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin (2013)

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада

  • Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова

    Стефан Митић (2024)
    Одређивање оптималних граница површинског копа је сложен и итеративни процес који захтева мултидисциплинарну експертизу, софистициране технике анализе и пажљиво разматрање геолошких, рударских, економских,техничких, еколошких и друштвених фактора. Оптимизација подразумева генерисање серије шкољки, површинског копа на основу различитих фактора прихода (Revenue factor) са итеративним кораком промене цене метала у односу на базну цену. Свака генерисана шкољка представља инкрементално повећање запремине резерви према инкременталном повећању продајне цене метала. Велики број техно -економских фактора утиче на овај процес, и промена сваког од њих ...
    оптимизација површинског копа, анализа границе копа, оптимална контура копа, лежиште Бувач, профит, искоришћење у преради, трошкови прераде руде
    ... Mines. Perth, Orebody Modelling and Strategic Mine Planning Symposium. 10. Hartman, H. L., 1992. SME Mining Engineering Handbook. Littleton, Colorado: Society for Mining, Metallurgy, and Exploration, Inc.. 11. Hustrulid W, Kuchta M, 1998. Open Pit Mine Planning and Design. Vol 1 ed. Rotterdam ...
    ... planning conference. 29. Whittle D., 2011. Open-Pit Planning and Design, SME Mining Engineering Handbook. 3rd ed. s.1.:Society for Mining, Metallurgy, and Exploration, Inc. (SME). 30. Whittle J., 1999. A decade of open pit mine planning and optimization - The craft of turning algorithms into packages ...
    ... Open Pit Design and Scheduling by use of Genetic Algorithms. Nottingham, Symposium on Artificial Intelligence in the Minerals Sector. 8. Githiria J., 2016. Cut-off grade optimisation to maximise the net present value using whittle 4X. Int. J. Mining and Mineral Engineering, 7(4). 9. Hall G ...

  • Efficiency and lifetime of medium voltage transformers

    Snežana Aleksandrović, Vesna Damnjanović (2017)

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... resources and potentially reduce the cost of geothermal energy utilization [1]. Geological settings where mineral deposits and geothermal resources are co-located create opportunities for developing more sustainable exploitation scenarios by substituting the fossil fuels energy systems in the industry ...
    ... Mionica and surrounding settlements. Karst groundwater under artesian pressure and elevated temperatures (17–37 "C) are taped with wells drilled below the Miocene cover in the surrounding. settlements of Paštrić, Sanković and Petnica. 3. MATERIALS AND METHODS Considering the available data and the ...
    ... probertite, ulexite, sirlezite, massive borax and Li-bearing smectite and silinaite minerals, deposited in three main zones: Borate zone, Borax zone and Lithium-borate zone. The basin basement in the north part is dominated by lower Triassic clastic and Paleozoic metamorphic sediments, while to the ...

  • Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems

    Dejan Ćebić, Nebojša M. Ralević (2021)
    нелинеарне једначине, поступци засновани на срединама, вишеструки корени,

  • Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima

    Aleksandar M. Mijatović, Jovana Bogojeski (2017)
    Kompleksi Pd(II), supstitucione reakcije

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... opinions about things or ideas that text refers to. It can be used in different ways in social and demographic research to quickly and efficiently collect large amounts of information. Developing intelligent systems that work with information: – Information retrieval: retrieval of specific information in ...
    ... will be searched for and the values that they stand for. Determiners and values can be set one by one, or this step can be skipped. In case this step is skipped, the software will automatically load the default determiners and their values (Table 1). All default determiners and their values listed in ...
    ... are replaced with hahaha and haha respectively. If this option is not checked, this step will be skipped and only determin- ers in its default form, which is listed on the advanced mining tab, will be found and processed. The mere extraction involves loading selected terms and their values from advanced ...

  • Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides

    Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)
    Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis
    ... been shown that indentation tectonics and related shortening in the Alps resulted in lateral wrenching in the Dinarides and the development of NW-SE striking dextral systems parallel to the Dinaridic orogen (e.g. Picha 2002; Van Gelder et al. 2017). Ilic and Neubauer (2005) also attributed the ...
    ... of the continental margin below the obducting: Western Vardar ophiolites (Fig. 8). Mechanical and thermal feasibility of obduction systems have been tested by analogue (Agard et al. 2014) and numerical (Duretz et al. 2016) experi- ments. Such experiments suggest that underthrusting of the ...
    ... contributions from analogue (Agard et al. 2014) and numerical (Duretz et al. 2016) experiments, as well as integrated studies (Jolivet et al. 2015). Less is known about the structural evolution of the continental lower plate in obduction systems. How can we trace the record of tectonic burial ...

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... district heating systems. Geo- Heat Center Quarterly Bulletin, 20 (4): 23–27. Cazzini, F., Dal Zotto, O., Fantoni, R., Ghielmi, M., Ronchi, P. & Scotti, P., 2015. Oil and gas in the Adriatic foreland, Italy. Journal of Petroleum Geology, 38: 255–279. Clementz, D. M., 1979. E�ect of oil and bitumen saturation ...
    ... district heating systems. Geo- Heat Center Quarterly Bulletin, 20 (4): 23-27. Cazzini, FE, Dal Zotto, O., Fantoni, R., Ghielmi, M., Ronchi, P. & Scotti, P., 2015. Oil and gas in the Adriatic foreland, Italy. Journal of Petroleum Geology, 38: 255-279. Clementz, D. M., 1979. Effect of oil and bitumen saturation ...
    ... Exploration and Production Technology, 5: 123–145. Vlahović, I., Mandic, O., Mrinjek, E., Bergant, S., Ćosović, V., De Leeuw, A., Enos, P., Hrvatović, H., Matičec, D., Mikša, G., Nemec, W., Pavelić, D., Penciger, V., Velić I. & Vranjković, A., 2012. Marine to continental depositional systems of Outer ...

  • Ostvarivanje dobiti pri uvođenju sistema agregatnih zamena na osnovnoj rudarskoj mehanizaciji površinskih kopova EPS

    Predrag Jovančić, Ignjatović Dragan, Đenadić Stevan (2021)
    Jedan od osnovnih zadataka na površinskim kopovima uglja je ostvarivanje zadovoljavajućeg vremenskog i kapacitetnog iskorišćenja kontinualnih sistema. Da bi se to postiglo, neophodno je izvršiti izmene u postojećoj strategiji održavanja. Preduslov je uvođenje agregatne zamene vitalnih delova na rudarskim mašinama. Benefiti su višestruki. Očekivani rezultati ovakvog pristupa su: smanjenje zastoja i povećanje vremena rada; direktne materijalne uštede; bolja organizacija rada; racionalizaciju radioničkih i magacinskih kapaciteta; povećanje vrednosti mašina. Da bi se uvela agregatna zamena neophodne su investicije za nabavku ...
    agregatne zamene, održavanje, mehanizacija, Benefit Cost analiza

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... Taseska V, Duic N, Environmental and economic aspects of higher RES penetration into Macedonian power system. Applied Thermal Engineering 2012;42:158-162. [72] Chinese D, Nardin G, Saro O. Multi-criteria analysis for the selection of space heating systems in an industrial building. Energy ...
    ... energy and satisfy the complete heat demands in many systems. In addition, using low temperature sources reduces the consumption of other forms of energy, fuel costs, and significantly reduced the negative impact on the environment. Taking into account a range of energy, economic and other ...
    ... Renewable and Sustainable Energy Reviews 2007; 11(7):1584-1595. [30] Lund H. Renewable energy strategies for sustainable development. Energy 2007;32(6):912-19. [31] Lund H, Mathiesen BV. Energy system analysis of 100% renewable energy systems – The case of Denmark in years 2030 and 2050. ...

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... geographic information systems (GIS) throughout the world. The research described in this paper is based on an integration of lexical and terminological resources, most of them developed within the Human Language Technology (HLT) Group at the University of Belgrade, and the Geological information ...
    ... expands into only 10 combinations of an adjective form and a noun form: kvarcna stena AND kvarcne stene AND kvarcnoj steni AND kvarcnu stenu AND kvarcna steno AND kvarcnom stenom AND kvarcnoj steni AND kvarcnih stena AND kvarcnim stenama AND kvarcnima stenama thus disabling false retrieval ...
    ... geologic multilingual vocabulary and other lexical and terminological resources used. Two basic results are outlined: multilingual map annotation and improvement of queries for the GeolISS geodatabase. Multilingual labelling and annotation of maps for their graphic display and printing have been tested with ...

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... undrepinned by two functional primary production systems, Envionmental Microbiology 9 (7): 1761-1771 86. Rawlings D.E. (2005) Characteristics and adapatibility of iron- and sulfur- oxidizing microorganisms used for the recovery of metals from minerals and their concentrates, Microbial Cell Factories ...
    ... & Materials Engineering 13 (1): 41-51 65. Lane D. J. (1991) 16S/23S rRNA sequencing in Stackebrandt E., Goodfellow M. (editors): Nucleic acid techniques in bacterial systematics, John Wiley and Sons, New York: 115-175. 66. Lawrence R., Phillipe R., Fleming C. (2007) Sulphide and ion exchange ...
    ... safegurading reactive mine tailings by ecological engineering, Applied and Environmental Microbiology 77(23): 8201-8208 119 77. Nancucheo I., Johnson D.B. (2012) Acidophilic algae isolated from mine- impaceted environments and their roles in sustaining heterotrophic acidophiles, Frontiers ...

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... Jourma! of Rock Mechanics and Geotechnical Engineering 2019, 77(4), pp. 770-778. 2. Feher,J.; Cambal, J.; Pandula, B.; Kondela, J.; Sofranko, M.; Mudarri, T.; Buchla, I. Research of the technical seismicity due to blasting: works in quarries and their impact on the environment and population. Applied ...
    ... of kilograms per a drillhol and blasting with dozens and even hundreds of tonnes of an explosive are being apllied in the world nowdays. Such large quantities of an explosive can cause seismic shocks with the intensity that can have hazardous impact on the environment and result in moving of buildings ...
    ... monitoring site r , reduced to the total quantity of the explosive Q i.e., R =%č. Parameters K and m are conditioned by } v characteristics of the rock mass and blasting conditions. Thus, V is a decreasing and convex function of the variable R. By applying the equation of rock mass oscillation while ...

  • SrpELTeC: A Serbian Literary Corpus for Distant Reading

    Ranka Stanković, Cvetana Krstev, Duško Vitas (2024)
    U članku je predstavljen SrpELTeC, korpus razvijen u okviru akcije COST Distant Reading for European Literary History (CA16204). Svi romani u SrpELTeC-u su odabrani, pripremljeni i obeleženi korišćenjem zajedničkih principa uspostavljenih za sve jezičke zbirke u Evropskoj zbirci književnog teksta (ELTeC). Navedeni su izazovi i rešenja u pripremi SrpELTeC od nule. Svi romani su ručno kodirani u TEI sa bogatim metapodacima i strukturnim napomenama. Automatska anotacija je uključivala POS-označavanje, lematizaciju i imenovane entitete, oslanjajući se na resurse za obradu ...
    digital humanities, Serbian literature, text corpora, distant reading , linked data, named entity recognition, text analytics

  • Effectiveness assessment of agricultural machinery based on fuzzy sets theory

    Miodragović Rajko, Tanasijević Miloš, Mileusnić Zoran, Jovančić Predrag (2012)

  • Risk assessment model of mining equipment failure based on fuzzy logic

    D. Petrović, Tanasijević Miloš, V. Milić, Lilić Nikola, Stojadinović Saša, Igor Svrkota (2014)

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... not enable processing of texts in Unicode and this coding scheme became more and more frequently used, the Unitex2 and Nooj3 system were developed, both allowing processing in Unicode, and sub- sequently started to suppress Intex. Although all three systems enable text processing based on dictionaries ...
    ... practical reasons, because smaller dictionaries are easier to manage. Besides, and which is more important, the usage of all dictionaries during text processing using the Intex/Unitex systems is not always necessary, and sometimes even advis- able. The most important feature of the dictionary management ...
    ... slati (send) in infinitive or the verbal noun slanje (sending) and omits numerous pages which contain other forms of this verb such as, for example, šaljem poruku (I am sending a message). In addition to that the user has no control on the way Google expands the query. Finally, when Serbian is ...

  • 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