Претрага
705 items
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Еоценска фауна југозападног дела Сирт басена (Либија)
Љупко Рундић, Мери Ганић (2020)Љупко Рундић, Мери Ганић. "Еоценска фауна југозападног дела Сирт басена (Либија)" in Записници Српског геолошког друштва, Српско геолошко друштво (2020)
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The Reciprocal Algebraic Integers Having Small House
Dragan Stankov (2021)Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "The Reciprocal Algebraic Integers Having Small House" in Experimental Mathematics (2021). https://doi.org/ 10.1080/10586458.2021.1982425
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Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP
Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana (2015)Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP" in International Journal of Coal Geology 139, Amsterdam, Netherlands:Elsevier BV (2015): 63-79. https://doi.org/10.1016/j.coal.2014.07.011
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The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1
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Managing mining project documentation using human language technology
Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentationAleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja . "Managing mining project documentation using human language technology" in The Electronic Library (2018). https://doi.org/10.1108/EL-11-2017-0239
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Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje... S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W ...
... 11.16 S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S ...
... Baniyounes, A., Rasul, M., Amanullah, M., Khan, M., Fuzzy logic based environmental indicator for sustainability assessment of renewable energy system using life cycle assessment, Procedia Engineering 49, 2012, pp. 35-41 62. Dong, J., Chi, Y., Zou, D., Fu, C., Huang, Q., Ni, M., Energy environment– ...Jelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Mine ventilation system planning using genetic algorithms
The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methodsNikola Lilić, Ranka Stanković, Ivan Obradović. "Mine ventilation system planning using genetic algorithms" in 6. international symposium on mine planning and equipment selection, Ostrava (Czech Republic), 3-6 Sep 1997, A.A. Balkema, Rotterdam (Netherlands) (1997)
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Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water
Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M (2014)Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M. "Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water" in Industrial and Engineering Chemistry Research 53 no. 27, Washington:American Chemical Society (2014): 10841-10848. https://doi.org/10.1021/ie500849r
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Using technology for knowledge transfer between academia and enterprises
Ivan Obradović, Ranka Stanković (2014)... education: Introduction. The Modern Language Journal, 95(3), 339-343. Daconta, M. C., Obrst, L. J., & Smith, K. T. (2003). The Semantic Web: a guide to the future of XML, Web services, and knowledge management. Wiley. com. Etzkowitz, H. (2004). The evolution of the entrepreneurial university. ...
... education in the 21st century. Routledge. Meyer, M. (2003), Academic entrepreneurs or entrepreneurial academics? research–based ventures and public support mechanisms. R&D Management, 33: 107–115. Obradović, I., Stanković, R., Prodanović, J., & Kitanović, O. (2013). A TEL Platform Blending Academic ...
... Learning, 24(1), 97-106. Breslow L., Pritchard D. E., DeBoer J., Stump G. S., Ho A. D., & Seaton D. T. (2013). Studying Learning in the Worldwide Classroom: Research Into edX's First MOOC. RPA Journal, 8, Summer 2013, 13-25. Cenoz, J., & Gorter, D. (2011). A holistic approach to multilingual education: ...Ivan Obradović, Ranka Stanković. "Using technology for knowledge transfer between academia and enterprises" in Knowledge and Management Models for Sustainable Growth, Proc. of IFKAD 2014, 9th International Forum on Knowledge Asset Dynamics, 11-13 June 2013, Matera, Italy, Bari : IFKAD (2014)
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... MALEŠEVIĆ, M., KLISIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ, S., RADOVANOVIĆ, Z., BOŽANIĆ, M. (1970): Osnovna geološka karta 1:100.000, list Čačak K 34-5. Zavod za geološka i geofizička ispitivanja, Beograd BRKOVIĆ, T., MALEŠEVIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ, S., RADOVANOVIĆ, Z., PAVLOVIĆ, Z., RAKIĆ, M. (1978): ...
... i geofizička ispitivanja, Beograd DEER, W. A., HOWIE, R. A., ZUSSMAN, J. (1971): Rock-Forming Minerals, vol. 3. Longman William Clowes & Sons Ltd., London, Beccles and Colchester, 270 pp. DEER, W. A., HOWIE, R. A., ZUSSMAN, J. (1972): Rock-Forming Minerals, vol. 5. Longman Lowe and Brydone Ltd. ...
... (1976): Stability of chrysotile and antigorite in the serpentine multisystem. Schweiz. Mineral. Petrogr. Mitt., pp. 79-93. FAUST, T. G. & FAHEY, J. J. (1962): The Serpentine-Group Minerals - Studies of the natural phases in the system MgO-SiO2-H2O and the systems containing the congeners of magnesium ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова
Milena Rosić (2014-12-05)У оквиру ове докторске тезе, испитиване су оптималне методе за добијањенанопраха – калцијум манганског оксида допираног јонима гадолинијума. Циљистраживања је испитивање одговарајућих прекурсора који су подесни да седобију чисти нано прахови манганита са перовскитском структуром, као имонофазни чврсти раствори са перовскитском структуром. Као подесан методкоришћена је модификована глицин нитратна метода, а од прекурсора нитрати иацетати одговарајућих метала. Модификација глицин нитратне методе се односина делимичну замену нитрата ацетатима, чиме је ублажена бурност реакције.Испитан је различити однос прекурсора, који дају наночестичне ...... Милена Росић 114 6. ЛИТЕРАТУРА Aliaga, H., Causa, M. T., Tovar, M., Butera, A., Alascio, B., Vega, D., Leyva, G., Polla, G., König, P. (2003): High temperature susceptibility in electron doped Ca1-xYxMnO3: double exchange versus superexchange. J. Phys.: Condens. Matter 15, 249-258. Anderson, P ...
... Abbett, B. M., Smith, E. H., Ghosh, S., Fennie, C. J. (2012): The magnetoelectric effect in transition metal oxides: Insights and the rational design of new materials from first principles. Current Opinion in Solid State and Materials Science Vol. 16, No. 5, 227–242 Bocher L., Aguirre M. H., Robert ...
... synthesis of nanopowders for solid oxide fuel cells (SOFC), Journal of Power Sources, 145, 237–242. Briáttico, J., Alascio, B., Allub, R., Butera, A., Caneiro, A., Causa, M. T., Tovar, M. (1996): Double-exchange interaction in electron-doped CaMnO3-δ perovskites. Phys. Rev. B, 53, No. 21, 14020-14023 ...Milena Rosić. "Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-05)
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia
Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović. "Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)
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Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report
Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić (2021)Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić. "Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2021). https://doi.org/10.1007%2F978-3-030-60196-6_19
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Part of Speech Tagging for Serbian language using Natural Language Toolkit
Ranka Stanković, Boro Milovanović (2020)Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...... Gorana Marković for proofreading the manuscript. REFERENCES [1] J. Devlin, M. Chang, K. Lee, and K. Toutanova, “BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding,” Oct. 2018 [2] Z. Lan, M. Chen, S. Goodman, K. Gimpel, P. Sharma, and R. Soricut, “ALBERT: A Lite ...
... Literary History, a COST Action funded by the Horizon 2020 Framework. https://www.distant-reading.net/, Mar. 2020 [13] M. d. Marneffe, T. Dozat, N. Silveira, K. Haverinen, F. Ginter, J. Nivre, and C. D. Manning, “Universal Dependencies: A cross-linguistic typology,” Proc. Ninth International Conference ...
... Lite BERT for Self-supervised Learning of Language Representations,” Feb. 2020 [3] Z. Zhang, J. Yang, and H. Zhao, “Retrospective Reader for Machine Reading Comprehension,” Jan. 2020 [4] B. Li, N. Jiang, J. Sham, H. Shi, and H. Fazal, “Real-world Conversational AI for Hotel Bookings,” Proc. International ...Ranka Stanković, Boro Milovanović. "Part of Speech Tagging for Serbian language using Natural Language Toolkit" in 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020, Academic Mind, Belgrade (2020)
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Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements
The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović. "Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements" in Advances in Engineering Software, Elsevier BV (2020). https://doi.org/10.1016/j.advengsoft.2020.102824
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Application of stochastic models for mine planning and coal quality control
... tance from the beginning of the layer is in the range [(j – 1)d, jd] where d is the cut depth of the reclaimed. Now, the layers can be described by the matrix: X X X X X X X X X n n m m mn 11 12 1 21 22 2 1 2 � � � � � � � where m is the number of stocked layers, l – the length of the bed ...
... material in layer i such that its dis- tance from the beginning of the layer is in the range [(j—1)d, jd] where dis the cut depth of the reclaimed. Now, the layers can be described by the matrix: Xm Xm 0 *X where m is the number of stocked layers, / — the length of the bed, and n = //d. The volume of the ...
... Geology, University of Belgrade, Belgrade, 2007 [3] Shih, J. S., Frey, H. C., Coal Blending Optimization under Uncertainty, Proceedings, Tenth Annual Inter- national Pittsburgh Coal Conference, Pittsburgh, Penn., USA, 1993, pp. 1110-1115 [4] David, M., Developments in Geomathematics 2: Geostatistical Ore ...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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Стабилизација косине приступног пута у југоисточном делу површинског копа „Ћерамиде“
Никола Анђелић (2024)Експлоатација дацита као техничког камена се на површинском копу "Ћерамиде" врши дисконтуалном технологијом уз примену бушачко-минерских радова и високо капацитативне и габаритне опреме. Примане наведене технологије захтева стабилне и безбедне транспортне путеве како би се планирана производња и реализовала. Услед клизишта које је настало у зони главног извозног пута на површинском копу дацита "Ћерамиде" неопходно је обезбедити одговарајуће техничко решење којим би се косина пута довела у стабилно стање. У том смислу предложено је техничко решење са насипањем косине ...... naboran u/ili ispucao stenski masiv sa više diskontinuteta koji se presecaju formirajući šiljate blokove U M A N J E N J I E U K L J E Š T E N J A K O M A D A S T E N S K O G M A T E R I J A L A ZDROBLJENA Slabo ukljcštcn, izrazito ispucao stcnski masiv sa izmešanim šiljatim i zaobljenim ...
... |1+2-·a|-s+|1— a|-m,'03 l'[5+mb'°3n | | G6·a-my,''s}hmy:Ox ! (1.9) |1+a|·\2+a|- /1+ »| _? 3”J |1+a|-|2+a| GSmaxv g, =—" —— — (1.10) Čvrstoća stenskog masiva za pojedine kriterijume loma se određuje na sledeći način: - po Mohr-Coulomb-ovom kriterijumu loma: ,:2·0'·c05(i)' (1.11) m 1-sinQ' - ...
... 0,544 LO (dacit II faze) 20 Nikola Anđelić 28 22 Sh ea r St re ss (M Pa ) Ma jo r Pr in ci pa l St re ss (M Pa ) - Normal Stress (MPa) — Dacit - Ceramide - Principal Stress Envelope !J–—YZ_ — Dacit - Ceramide -– Shear vs. Normal Stress Envelope Minor Principal Stress ...Никола Анђелић. Стабилизација косине приступног пута у југоисточном делу површинског копа „Ћерамиде“, 2024
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Испитивање магнетске сусцептибилности прашине антропогеног порекла
... podataka sa terenskim opservacijama, što je veoma važno za ljude koji rade u udaljenim područjima daleko od laboratorija. Literatura [1] Pacyna, J. M., Pacyna, E. G. (2001). An assessment of global and regional emissions of trace metals to the atmosphere from anthropogenic sources worldwide. En ...
... n u primenjenom magnetskom polju H. Razlikujemo tri vrste : masenu m, zapreminsku V i molarnu mol, koje su definisane sledećim jednačinama, respektivno: V m mol m mol M V H , (1) gde je M – magnetizacija, - gustina a Vmol – molarna zapremina. Uprkos široko ...
... 942. [6] Pandey, J. S., Kumar, R., et. al. (2005). Health risks of NO2, SPM and SO2 in Delhi (India). Atmospheric Environment, 39, 6868-6874. [7] Liu, Q., Roberts, A.P. et al. (2012). Environmental magnetism: Principles and applications, Rev. Geophys., 50. [8] Dearing, J. (1999). Environmental ...Дубравка Новичић, Весна Цветков, Весна Дамњановић. "Испитивање магнетске сусцептибилности прашине антропогеног порекла" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
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Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment
Groundwater vulnerability assessment methods are continuously being developed and existing methods are very often modified to provide better simulation of natural protection conditions and more objective results. Most frequently used methods are based on calculation of predefined parameters influencing water infiltration and underground flow, which can often lead to bias conclusions related to vulnerability evaluations. Some other methods, like the Time Dependent Model (TDM) are based on an approach, where parametrization is obtained at the final stage of the ...Ocena ranjivosti podzemnih voda, karstne podzemne vode, TDM metoda, delineacija sanitarnih zona, Slovenački karstVladimir Živanović, Nataša Ravbar, Igor Jemcov. "Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)