Претрага
648 items
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Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks
Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana (2013)Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks" in 64rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP) Book of Abstracts, Sosnowiec, Poland:University of Silesia, Sosnowiec (2013): 108-109
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A necessary and sufficient condition for an algebraic integer to be a Salem number
Dragan Stankov (2019)We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.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. "A necessary and sufficient condition for an algebraic integer to be a Salem number" in Journal de theorie des nombres de Bordeaux (2019). https://doi.org/10.5802/jtnb.1076
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An alternative to Mahler Measure of polynomials
Dragan Stankov (2024)We introduce the ratio of the number of roots of a polynomial Pd, greater than one in modulus, to its degree d as an alternative to Mahler measure. We investigate some properties of the limit ratio. We generalise this definition for a two variable polynomial P(x,y) using the Cauchy’s argument principle. We present an algorithm for calculating the limit ratio and a numerical method for its approximation. We estimated the limit ratio for some families of polynomials. Some examples ...Dragan Stankov. "An alternative to Mahler Measure of polynomials" in The book of abstracts XV serbian mathematical congress, Belgrade, Serbia, june, 19–22, 2024, Univerzitet u Beogradu, Matematički fakultet (2024)
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Paleomagnetisam of Tertiaty igneous rocks from the Varda Zone. New Trends in Geomagnetism: Paleo, Rock and Environmental Magnetisam
Lesić Vesna, Márton Emo, Cvetkov Vesna, Tomić Dragana. "Paleomagnetisam of Tertiaty igneous rocks from the Varda Zone. New Trends in Geomagnetism: Paleo, Rock and Environmental Magnetisam" in 12th Castle Meeting on Paleo, Rock and Environmental Magnetism, Nové Hrady, August 29 - September 4, 2010 (2010): 43
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Transmisiona oprema i trendovi razvoja na mašinama za površinsku eksploataciju
Polovina Dragan, Jovančić Predrag, Tanasijević Miloš. "Transmisiona oprema i trendovi razvoja na mašinama za površinsku eksploataciju" in VIII Međunarodni simpozijum Mehanizacija i automatizacija u rudarstvu i enregetika - MAREN 1, Lazarevac:Univerzitet u Beogradu - Rudarsko-geološki fakultet (2010): 231-239
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Assumptions for Definition of Mine Assesments Procedure with Hybrid Model
Zlatanović Dragan, Milisavljević Vladimir, Tanasijević Miloš. "Assumptions for Definition of Mine Assesments Procedure with Hybrid Model" in Mining and Metallurgy Engineering Bor no. 4, Bor:Mining and Metallurgy Institute (2013): 49-58. https://doi.org/10.5937/MMEB1304049Z
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Assumptions for Defining the Mine Assessment Procedure with Hybrid Model
Dragan Zlatanović, Milisavljević Vladimir, Tanasijević Miloš. "Assumptions for Defining the Mine Assessment Procedure with Hybrid Model" in Mining and Metalurgy Engineering Bor no. 4, Bor:Mining and Metallurgy Institute, Bor (2013): 49-68
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Tehnika merenja struje kratkog spoja u izučavanjima galvanskog kontakta u pripremi mineralnih sirovina
Kostović Milena, Stanković Dragan (2013)Kostović Milena, Stanković Dragan. "Tehnika merenja struje kratkog spoja u izučavanjima galvanskog kontakta u pripremi mineralnih sirovina" in Tehnika - rudarstvo, geologija i metalurgija no. 6, Beograd, Srbija:Savez inženjera i tehničara (2013): 1035-1040
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Preliminary Results of the Analysis of Pleistocene Rodent fauna from the Hadži Prodanova Cave near Ivanjica (Western Serba)
Bogićević Katarina, Nenadić Draženko, Đurić Dragana, Milivojević Jelena, Lazarević Zorica. "Preliminary Results of the Analysis of Pleistocene Rodent fauna from the Hadži Prodanova Cave near Ivanjica (Western Serba)" in Comptes rendus de l'Académie Bulgare des Sciences (Proceedings of the Bulgarian Academy of Sciences) 7 no. 68, Sofia: (2016): 891-896
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Forecasting financial distress of mining companies: Tool for examination of key performance indicators
Zlatanović Dragan, Bugarin Mile, Milisavljević Vladimir. "Forecasting financial distress of mining companies: Tool for examination of key performance indicators" in Mining and Metalurgy Engineering Bor no. 1, Bor:Mining and Metallurgy Institute, Bor (2016): 73-80. https://doi.org/10.5937/MMEB1601073Z
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Preliminary Results of the Analysis of Pleistocene Rodent Fauna from the Hadzi Prodanova Cave Near Ivanjica (Western Serbia)
Bogićević Katarina, Nenadić Draženko, Đurić Dragana, Milivojević Jelena, Lazarević Zorica . "Preliminary Results of the Analysis of Pleistocene Rodent Fauna from the Hadzi Prodanova Cave Near Ivanjica (Western Serbia)" in COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES 69 no. 7 (2016): 891-896
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Fosilni ostaci fosilnih kičmenjaka u pećinskim naslagama Srbije
Katarina Bogićević, Dragana Đurić, Draženko Nenadić. "Fosilni ostaci fosilnih kičmenjaka u pećinskim naslagama Srbije" in Zbornik radova sa naučnog skupa „Kras-vekovna naučna inspiracija“, Beograd, 23. septembar 2022, Univerzitet u Beogradu - Geografski fakultet (2022)
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The Dinaride Ophiolite Belt – derived olistostrome melange at the northen slope of Moračka Kapa (Montenegro): evidence of the emplacement of the southeast Bosnian-Durmitor terrane
Karamata Stevan, Dimitrijević Mara, Dimitrijević Milorad, Ercegovac Marko, Kalezić M., Milovanović Dragan, Mirković M., Olujić Jovan, Popvić A., Pajović M., Radosinović M., Stijović V., Sudar Milan, Cvetković Vladica, Šarić Kristina, Zakaridze G. (2010)Karamata Stevan, Dimitrijević Mara, Dimitrijević Milorad, Ercegovac Marko, Kalezić M., Milovanović Dragan, Mirković M., Olujić Jovan, Popvić A., Pajović M., Radosinović M., Stijović V., Sudar Milan, Cvetković Vladica, Šarić Kristina, Zakaridze G.. "The Dinaride Ophiolite Belt – derived olistostrome melange at the northen slope of Moračka Kapa (Montenegro): evidence of the emplacement of the southeast Bosnian-Durmitor terrane" in Bulletin Classe des sciences mathématiques et natturalles - Sciences natturalles 140 no. 46, Beograd:Srpska akademija nauka i umetnosti (2010): 29-40
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The number of unimodular roots of some reciprocal polynomials
Dragan Stankov (2020)We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...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 number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Rangiranja bagera za njihovu revitalizaciju primenom višekriterijumske analize
Obzirom da je na našim površinskim kopovima trenutno u eksploataciji veći broj rotornih bagera sa sličnim tehničkim karakteristikama i približno istom starošću postavlja se pitanje kako rangirati bagere, i kojim redom da se izvrši njihova revitalizacija. Za ocenu stanja i rangiranje ovako velikog broja bagera najpogodnije se pokazalo korišćenje višekriterijumskih metoda sa višeatributnom ocenom, odnosno bodovanje referentnih indikatora stanja bagera na osnovu ekspertske ocene. U ovom radu prikazan je metodološki pristup koji je korišćen prilikom izrade Studije «Produžetak radnog ...Ivan Obradović, Dragan Ignjatović, Ranka Stanković, Ljiljana Ivković. "Rangiranja bagera za njihovu revitalizaciju primenom višekriterijumske analize" in MAREN 2006, Međunarodni simpozijum Mehanizacija i automatizacija u rudarstvu i energetika, zbornik radova, septembar 2006, Beograd, Univerzitet u Beogradu-Rudarsko-geološki fakultet (2006)
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Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
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Збирка решених задатака из Mатематике I
Драган Станков (2016)Драган Станков. Збирка решених задатака из Mатематике I, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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Геологија угљева
Драгана Животић (2018)Драгана Животић. Геологија угљева, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2018
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Uticaj ekstremnih procesa na rizike površinske eksploatacije
Nepredvidivi ekološki negativni slučajni procesi mogu uticati na geo-tehnički sistem pri površinskoj eksploataciji ležišta mineralnih sirovina, što u velikoj meri uvećava rizike i ugrožava realizaciju proizvodnje. Kvantitativna analiza sa proračunom verovatnoća pojava ovakvih ekstremnih događaja i procenom odgovarajućih ekonomskih posledica, posebno u uslovima globalnih klimatskih promena, omogućava definisanje rizika i optimizaciju parametara sistema površinske eksploatacije.Natalija Pavlović, Tomislav Šubaranović, Dragan Ignjatović. "Uticaj ekstremnih procesa na rizike površinske eksploatacije" in 15. međunarodna konferencija o površinskoj eksploataciji OMC 2022, Zlatibor, 12.-15.10.2022., Jugoslovenski komitet za površinsku eksploataciju (2022)
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Did the Dinaric Alps force an arid climate and speciation during the Miocene Climatic Optimum?
Robert Šamarija, Nevena Andrić-Tomašević, Oleg Mandic, Julia Madl, Katja Mužek, Katarina Bradić-Milinović, Armin Zeh, Ljupko Rundić, Vladimir Simić, Dragana Životić, Violeta Gajić, Zoran Marković, Davor Pavelić, Vedad Demir (2024)Robert Šamarija, Nevena Andrić-Tomašević, Oleg Mandic, Julia Madl, Katja Mužek, Katarina Bradić-Milinović, Armin Zeh, Ljupko Rundić, Vladimir Simić, Dragana Životić, Violeta Gajić, Zoran Marković, Davor Pavelić, Vedad Demir. "Did the Dinaric Alps force an arid climate and speciation during the Miocene Climatic Optimum?" in 100 years of the Paratethys (Laskarev, 1924) – Conceptual History and Modern Challenges, Belgrade, Serbia, 30. september – 1. october 2024 , Srpsko geološko društvo (2024)