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Упит dcterms_creator_txt:R. D. Srećković-Batoćanin

987 items

  • 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 polynomials

  • 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 polynomials

  • Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels

    Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković (2023)
    drilling fluid formulation, upstream oil and gas, fluid dynamics, fluid loss control, gel

  • Long-Term Planning Methodology for Improving Wood Biomass utilization

    Vukašinović V., Gordić D., Živković Marija, Končalović D., Živković D. (2018)

  • Numerical Modeling and Computer Simulation of Ground Movement Above Underground Mine

    Nurić A., Nurić S., Kričak Lazar, Lapadić I. Husanagić R. (2012)

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... are: R(D-Lib.) = 0.06/exc,0.62/good,0.32/avr; M(D-Lib.) = 0.56/good,0.44/avr; S(D-Lib.) = 0.4/good,0.3/aver,0.3/adeq; R(D-Drs.) = 0.34/good,0.56/aver,0.1/adeq; M(D-Drs.) = 0.12/good,0.68/aver,0.2/adeq; S(D-Drs.) = 0.56/aver,0.44/adeq; R(D-Cat.) = 0.52/exc,0.4/good,0.08/avr; M(D-Cat.) = ...
    ... at three different surface mines (Drmno – D, Tamnava West Field – T, Field D – F) were considered. Availability evaluation was made based on experts’ judgments and assessments. The fuzzy inference engine is used to synthesize mentioned fuzzy numbers (R, M and S) into one overall (A). Identification ...
    ... = 0.4/exc,0.38/good,0.22/avr; S(D-Cat.) = 0.14/exc,0.76/good,0.1/avr; On the base of questionnaires for eight analysts for Tamnava west field – Kolubara basin and seven analysts from Field D – Kolubara basin, final grades for bulldozers are: R(T-Lib.) = 0.13/exc,0.5/good,0.38/avr; M(T-Lib.) = ...

  • Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu

    Lazar Pavlović (2024)
    Cilj ovog rada je analiza stabilnosti dijafragme, predviđene kao mere za obezbeđenje dubokog iskopa od zarušavanja okolnog tla koji se izvodi na mestu buduće metro stanice “Francuska” koja je planirana u okviru prve faze, prve linije metroa u Beogradu – sekcije „Centar“. U okviru numeričke analize je izvršena analiza stabilnosti konzolne dijafragme kao i dijafragme sa ankerom – slobodno oslonjene dijafragme, kako bi se moglo napraviti poređenje dobijenih vrednosti koje se odnose na dubinu fundiranja koja je potrebna da ...
    istraživanja, metro stanica, iskop, dijafragma
    ... dijafragme: 1 1 Eyi = —' 0) * D = — · 105.7 · D = 52.85D = 52.85 · 48.9835 = 2588.78 kN/m! k 2 D 48.9835 Ep =·1·{oE, - o ) D =1·1·(43.38D + 105.7 – 105.7)· D =1-43.38D ·D = P2 R 2 V Hp Hp 22 . . . 4 . _ 10.84D? = 10.84 · (48.9835)? = 10.84 · 2399.38 = 26009.28 kN/m! D 48.9835 do==S-c=O—— pes=— ...
    ... prikazano silom R), tako da je računska dubina fundiranja D = BC. Ovako pojednostavljena raspodela pritisaka prikazana je na s/ici /3c. 49 Sile koje deluju na dijafragmu: «• Sila aktivnog pritiska tla 1 [(] 1 =-.y·togož[45%_ ' \. 2—o0.y.K · 2 R a yitg{a45 - ) (H+D)} = "y*Ka'(H+D) +• Sila m ...
    ... (sila R na slici 16 c). A A ··_1 B B e K. C JEp D, :i || F (a) (b) (o) (4) Slika I6. Proračunska šema uklještene dijafragme (Ćorić Slobodan — Geostatički proračuni): a) pomeranja, b) teorijska raspodela bočnih pritisaka tla; c) uprošćena raspodela bočhnih pritisaka tla, d) dijagram ...

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje
    ... should be chosen sufficiently small. A P P E N D I X B : P O L A R D E C O M P O S I T I O N O F T H E D E F O R M AT I O N G R A D I E N T I N 2 D Analytic solutions exist for the decomposition of the deformation gradient F into the rotation tensor R and the right stretch tensor U as well as the left ...
    ... two orthogonal stretches with different magnitude, but the same sign. 3 A P P L I C AT I O N : S T R A I N T Y P E F O R RO TAT I N G E L E M E N T S U N D E R D I F F E R E N T T Y P E S O F D E F O R M AT I O N As a first test, we apply our strain type classification to individual square elements ...
    ... (other than missing material) should be directed to the corresponding author for the paper. A P P E N D I X A : S H A P E F U N C T I O N S F O R D E T E R M I N I N G T H E D I S P L A C E M E N T G R A D I E N T We use linear shape functions to determine the displacement gradient ∂u ∂X for quadrilaterals ...

  • Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints

    Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski (2024)
    Apuseni-Banat-Timok-Srednogorie belt, danubicum, paleomagnetism, oroclinal bending

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • Primena backcasting metodologije pri dugoročnom planiranju korišćenja biomase

    Vukašinović V., Gordić D., Živković Marija, Živković D., Josijević M., Jurišević N. (2018)

  • 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
    ... Ilic, A., Neubauer, F., and Handler, R., 2005, Late Paleozoic- Mesozoic tectonics of the Dinarides revisited: Implications from 40Ar/39Ar dating of detrital white micas: Geology, J3J, J, 233-236. Jolivet, L., Faccenna, C., Agard, P., Frizon de Lamotte, D., Menant, A., Sternai, P., and Guillocheau ...
    ... 1:100000, Sheet Višegrad, “Geoinženjering” - Institute for Geology Sarajevo and Federal Geologic Survey, Belgrade (in Serbian) Pejović, D., and Radoičić, R., 1971, Uber die stratigraphie der Kreide serie der Mokra Gora: Bulletin Scientifique du Conseil des Academies des Sciences et des arts de ...
    ... significance for the geodynamic evolution of the Balkan Peninsula: University of Basel. Schmid, S. M., Bernoulli, D., Fiigenschuh, B., Matenco, L., Schefer, S.. Schuster, R., Tischler, M., and Ustaszewski, K., 2008, The Alpine-Carpathian-Dinaridic orogenic system: correlation and K. Porkolab ...

  • A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)

    Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin (2016)
    ... Silesian Coal Basin - Poland). In: RÜDE R. T., FREUND A. and WOLKERSDORFER, CH. (eds.) Proceedings of the 11th International Mine Water Association Congress: Mine Water - Managing the Challenges. Aachen, Germany, 2011. Aachen: IMWA, pp 231-235. POLOMČIĆ, D. (2001). Hydrodynamic research, opening ...
    ... Ratković J., Polomčić D., Bajić D., Hajdin B. FILIPOVIĆ, I. et al. (1976) National geological map of Serbia, scale 1:100,000, Obrenovac section (L 34-125). Belgrade: Geological, Hydrogeological, Geophysical and Geotechnical Research Institute - Geozavod. JAGODIĆ KRUNIĆ, D. and JOVIČIĆ, V. (2007) ...
    ... Belgrade: Yugoslav Opencast Mining Committee, pp. 259-266. POLOMČIĆ, D. et al. (2013b) Hydrodynamic characteristics of water supply source „Peštan“ (Lazarevac, Serbia). Vodoprivreda, 45, pp. 55-68. POLOMČIĆ, D., BAJIĆ, D. and ILIĆ, Z. (2014) Implementation of alternative forecasting hydrodynamic ...

  • O mogućnosti proizvodnog reaktiviranja ležišta cementnih laporaca Ralja kod Beograda

    Ilić M., Kričak Lazar, Jagodić-Krunić D., Podunavac D. (2014)

  • Application of pulsed flash thermography method for specific defect estimation in aluminum

    Tomić Ljubiša D, Jovanović Dalibor B, Karkalić Radovan M, Damnjanović Vesna, Kovačević Branko V, Filipović Dalibor D, Radaković Sonja S. (2015)

  • Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)

    Darko M. Božović (2016-09-28)
    Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...
    karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.
    ... / H D . Božović: M ineragenija i potencijaln ost resu rsa karbon atn ih sirovin a ru dn og reona Bjelopavlića (Crna G ora) - d oktorska d isertacija 182 T L -2 / 1 0 ,7 2 2 2 ,1 3 0 ,6 2 3 ,0 2 2 1 ,6 5 0 ,1 4 5 1 ,7 2 R u til T ...
    ... al, 2015, dopunjeno). LEŢIŠTE/ POJAVA I N D U S T R I J S K A G R A N A B o je i l ak o v i P ap ir G u m a i P V C S ta k lo M et a lu rg ij a L iv ar st v o F ar m ac ij a i k o z m et ik a In d us tr ija š eć er a St oč na h ra na ...
    ... Mouse, 611 str., Podgorica. Dragović, D., Bašović, R., 1973: Ukrasni kamen Bjelopavlića, III dio. Proračun rezervi ukrasnog kamena brdo Visočica kod Spuţa. FSD Zavod za geološka istraţivanja Socijalističke Republike Crne Gore, 32 str., Titograd. Dragović, D., Kalezić, M., 1960: Elaborat o proračunu ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... C D D D D D D D D x D )D(C D )D(p D )D(p 00000 D )D(p D )D(C 0 D )D(p 0000 D )D(p 0 D )D(C D )D(p D )D(p 000 0 D )D(p D )D(p D )D(C 0 D )D(p 00 00 D )D(p 0 D )D(C D )D(p D )D(p 0 000 D )D(p D )D(p D )D(C 0 D )D(p 0000 D )D(p 0 D )D(C D )D(p ...
    ... /3/ 2 /2/ /2/ /2/ 2 /1/ /1/ /1/ 2 1 output6 input5 output3 input2 D D p~ D D p~ D D p~ D D p~ C D D p~ D D p~ D D p~ D D p~ C D D p~ D D p~ D D p~ D D p~ D D p~ C )Q(D~ 0 )Q(D~ 0 )Q(D~ )Q(D~ 0 V   (223)    Где се обе матрице, и [NL] и [V] користе у изразу (224):  ...
    ... CLoop CLoop CLoop CLoop D QL D QL D QL8 ppp D QL D QL D QL8 ppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL8 ppp D QL D QL D QL D QL8 pppp = = = = = = = = ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... C D D D D D D D D x D )D(C D )D(p D )D(p 00000 D )D(p D )D(C 0 D )D(p 0000 D )D(p 0 D )D(C D )D(p D )D(p 000 0 D )D(p D )D(p D )D(C 0 D )D(p 00 00 D )D(p 0 D )D(C D )D(p D )D(p 0 000 D )D(p D )D(p D )D(C 0 D )D(p 0000 D )D(p 0 D )D(C D )D(p ...
    ... /3/ 2 /2/ /2/ /2/ 2 /1/ /1/ /1/ 2 1 output6 input5 output3 input2 D D p~ D D p~ D D p~ D D p~ C D D p~ D D p~ D D p~ D D p~ C D D p~ D D p~ D D p~ D D p~ D D p~ C )Q(D~ 0 )Q(D~ 0 )Q(D~ )Q(D~ 0 V   (223)    Где се обе матрице, и [NL] и [V] користе у изразу (224):  ...
    ... CLoop CLoop CLoop CLoop D QL D QL D QL8 ppp D QL D QL D QL8 ppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL D QL8 pppp D QL D QL D QL8 ppp D QL D QL D QL D QL8 pppp = = = = = = = = ...

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... in g w it h d o o r - m ai n f an F ig . 1 4 . T h e a ir d is tr ib u ti o n o b ta in ed b y st a n d a rd m et h o d . M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F ...
    ... M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 362 N. Lilić, I. Obradović & R. Stanković ...
    ... M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 364 N. Lilić, I. Obradović & R. Stanković ...