Претрага
537 items
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Prirodno prečišćavanje izdani
Dragan Kaluđerović (2007)Dragan Kaluđerović. Prirodno prečišćavanje izdani, Beograd:Rudarsko Geološki Fakultet, 2007
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Petrografske i organsko geohemijske karakteristike mrkih ugljeva iz ležišta istočne Srbije
Dragana Životić (2008)Dragana Životić. Petrografske i organsko geohemijske karakteristike mrkih ugljeva iz ležišta istočne Srbije, Beograd:Rudarsko Geološki Fakultet, 2008
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Uticaj jona apatita i kalcita na njihove površinske osobine
Dragan Radulović (2011)Dragan Radulović. Uticaj jona apatita i kalcita na njihove površinske osobine, Beograd:Rudarsko Geološki Fakultet, 2011
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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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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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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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On the distribution modulo 1 of the sum of powers of a Salem number
Dragan Stankov (2016)It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.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. "On the distribution modulo 1 of the sum of powers of a Salem number" in Comptes rendus Mathematique (2016). https://doi.org/10.1016/j.crma.2016.03.012
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Основи геофизике А - практикум
Драгана Ђурић (2018)Драгана Ђурић. Основи геофизике А - практикум, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2018
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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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Preliminary Risk Assessment of Dam Failure at the Location of the Cukaru Peki Deposit, Bor (Serbia)
Dragana Nišić (2021)preliminarna procena rizika, rušenje brane, nesreća, matrica rizika, posledice udesa, industrijski otpadDragana Nišić. "Preliminary Risk Assessment of Dam Failure at the Location of the Cukaru Peki Deposit, Bor (Serbia)" in Minerals, MDPI (2021). https://doi.org/10.3390/min11101126
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Primena SAR intereferometrije za određivanje koseizmičkih deformacija: trendovi i dostignuća
Dragana Đurić (2022)Dragana Đurić. "Primena SAR intereferometrije za određivanje koseizmičkih deformacija: trendovi i dostignuća" in XVIII Kongres geologa Srbije, Divčibare, Srbija (01-04.2022.), Srpsko geološko društvo (2022)
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А brief review on the geophysical model of Еast Vardar ophiolites: Serbia, North Macedonia and Greece
Dragana Đurić (2022)Dragana Đurić. "А brief review on the geophysical model of Еast Vardar ophiolites: Serbia, North Macedonia and Greece" in 16th Workshop of the International Lithosphere Program Task Force Sedimentary Basins & 7th Geoscience Symposium, Bucharest, Romania, 06-07.10.202222, The Cetatea de Scaun publishing house (2022)
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The number of nonunimodular roots of a reciprocal polynomial
Dragan Stankov (2023)We introduce a sequence Pd of monic reciprocal polynomials with integer coefficients having the central coefficients fixed as well as the peripheral coefficients. We prove that the ratio of the number of nonunimodular roots of Pd to its degree d has a limit L when d tends to infinity. We show that if the coefficients of a polynomial can be arbitrarily large in modulus then L can be arbitrarily close to 0. It seems reasonable to believe that if ...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 nonunimodular roots of a reciprocal polynomial" in Comptes rendus mathematique, Elsevier France Editions Scientifiques et Medicales (2023). https://doi.org/10.5802/crmath.422
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... bioethanol, equal to 387 ktoe, surpasses the 2020 target of NREAP for domestically produced bioethanol in the transport sector. As Anđelković et al. (Anđelković et al. 2017) concluded in their study on perspectives of applying ethanol as an alternative fuel in Serbia, the lack of legal regulation ...
... Challenges Vladimir Simić, Rade Jelenković, Dragana Životić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Mineral Resources of Serbia: Environmental, Societal and Economic Challenges | Vladimir Simić, Rade Jelenković, Dragana Životić | Serbia: Current Issues and ...
... Conditions PFera (Rajičić) Đekić, Pera M. Popović and Dragan Terzić Prospects of Glycine Max Production in the World and in the Republic of Serbia Fera M. Popović, Pojislav Mihailović, Savo Pučković, Jela Ikanović, Pera (Rajičić) Đekić, Dragan Terzić and Divna Simić Climate Change and Its Impact ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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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 обрадаНевенка Новаковић. Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава), Београд : [Н. Новаковић], 2024
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Public participation in the project of recоnstruction and building of a new smelter and sulfuric acid plant in RTB Bor
Ranđelović Dragana, Pacić Ivona, Ranđelović Dragan, Marijanović Toplica. "Public participation in the project of recоnstruction and building of a new smelter and sulfuric acid plant in RTB Bor" in Proceedings / XX International Scientific and Professional Meeting Ecological Truth, Eco-Ist '12, 30 May - 02 June 2012, Zajecar, Serbia, Zaječar:Tehnical Faculty Bor, University of Belgrade (2012): 255-263
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Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co
Polovina Dragan, Ivković Slobodan, Ignjatović Dragan, Tanasijević Miloš. "Ocena preostalih radnih mogućnosti rotornog bagera metodom primenjene ekspertske ocene sa empirijskim faktorom korekcije - Remaining operational capabilities evaluation of bucket wheel excavator by application of expert assessment method with empirical co" in Integritet i vek konstrukcija - Structural Integrity and Life 10 no. 1, Beograd:Društvo za integritet i vek konstrukcija i Institut IMS - Society for Structural Integrity and Life & IMS Institute (2010): 31-41. https://doi.org/620.169.1:621.879.48
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Dependability as the Criteria for Bucket Wheel Excavator Revitalization
Tanasijević Miloš, Ivezić Dejan, Ignjatović Dragan, Polovina Dragan. "Dependability as the Criteria for Bucket Wheel Excavator Revitalization" in Journal of Scientific and Industrial Research 70 no. 1, Rajasthan, India:Scientific Publishers (2011): 13-19
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Results of Experimental Installation of Roofbolting System in the Mines
Dragan Zlatanović, Marija Ilić, Vladimir Milisavljević, Dragan Ignjatović. "Results of Experimental Installation of Roofbolting System in the Mines" in Mining and Metalurgy Engineering Bor no. 4, Bor:Mining and Metallurgy Institute, Bor (2014): 65-84. https://doi.org/10.5937/MMEB1404065Z
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Late Pleistocene Squamate Reptiles from the Baranica Cave near Knjaževac (Eastern Serbia)
Đurić Dragana, Bogićević Katarina, Petrović Dragana, Nenadić Draženko. "Late Pleistocene Squamate Reptiles from the Baranica Cave near Knjaževac (Eastern Serbia)" in Geološki anali Balkanskoga poluostrva no. 78, Beograd:Rudarsko-geološki fakultet (2017): 23-35