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Wyszukujesz frazę "Djordjevic, D. M." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Statistical modeling of copper losses in the silicate slag of the sulfide concentrate smelting process
    Autorzy:
    Savic, M. V.
    Djordjevic, P. B.
    Mihajlovic, I. N.
    Zivkovic, Z. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/778781.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    modeling
    copper concentrate
    smelting process
    copper losses
    slag
    ANFIS
    Opis:
    This article presents the results of the statistical modeling of copper losses in the silicate slag of the sulfide concentrates smelting process. The aim of this study was to define the correlation dependence of the degree of copper losses in the silicate slag on the following parameters of technological processes: SiO2, FeO, Fe3O4, CaO and Al2O3 content in the slag and copper content in the matte. Multiple linear regression analysis (MLRA), artificial neural networks (ANNs) and adaptive network based fuzzy inference system (ANFIS) were used as tools for mathematical analysis of the indicated problem. The best correlation coefficient (R2 = 0.719) of the final model was obtained using the ANFIS modeling approach.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 3; 62-69
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of pH adjusted with different acids on the dyeability of polyester fabric
    Autorzy:
    Miljkovic, M. M.
    Djordjevic, D. M.
    Miljkovic, V. M.
    Stamenkovic, M.
    Stepanovic, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/949502.pdf
    Data publikacji:
    2014
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    polyester
    dyeing
    disperse
    dyes
    pH
    AIDS
    Opis:
    The influence of using formic, oxalic, citric, tartaric, hydrochloric, nitric, sulphuric and phosphoric acid for dyebath pH adjustment was investigated upon the dyeing of polyester fabric with CI Disperse Yellow 60. The positions of colour in CIELab coordinates of the samples dyed with the addition of tested acids were assessed and compared to those dyed with the addition of acetic acid. It was found that the differences in dyeabilities obtained with the addition of citric, oxalic, hydrochloric, nitric and sulphuric acid are entirely acceptable according to both M&S 83A and CMC (2:1) standards in comparison to the dyeability obtained with the addition of acetic acid.
    Źródło:
    Polish Journal of Chemical Technology; 2014, 16, 4; 1-5
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reparation of damaged forging dies by hard facing (HF) technology
    Autorzy:
    Lazic, V.
    Arsic, D.
    Nikolic, R. R.
    Aleksandrovic, S.
    Milosavljevic, D.
    Djordjevic, M.
    Cukic, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/111606.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    forging dies
    hard facing (HF)
    filler metals (FM)
    hardness
    microstructure
    matryce kuźnicze
    napawanie
    spoiwa
    twardość
    mikrostruktura
    Opis:
    The forging dies are in exploitation exposed to elevated temperatures and variable impact loads, both compressive and shear. Steels for manufacturing of these tools must endure those loads while maintaining mechanical properties and being resistant to wear and thermal fatigue. For those reasons, the alloyed steels are used for making the forging dies, though they have less weldability, because alloying increases proneness to hardening. Any reparatory hard facing (HF) of the damaged dies would require the specially adjusted technology to the particular piece. In this paper reparatory hard facing of dies used for forging pieces in the automobile industry is considered. Prior to reparatory hard facing of the real tools, numerous experimental hard facings on models were performed. All the model hard facings were done on the same steels which were used for production of the real forging dies. To define the optimal hard facing technology one needs to derive the optimal combination of the adequate heat treatment(s), to select the proper filler metals and the welding procedure. The established optimal HF technology was applied to real forging dies whose service life was further monitored in conditions of exploitation.
    Źródło:
    Production Engineering Archives; 2015, 6, 1; 26-29
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adsorption Kinetics of Reactive Dyes on Ash from Town Heating Plant
    Autorzy:
    Djordjevic, D.
    Stojiljkovic, D.
    Smelcerovic, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/205104.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    kinetics
    reactive dye
    adsorption
    ashes
    Opis:
    In order to investigate the mechanism of adsorption of reactive dyes from the textile industry on ash from heating plant produced by brown coal combustion, some characteristic sorption constants are determined using Langergren adsorption equations for pseudo-first and pseudo-second order. Combined kinetic models of pseudo-first order and pseudo-second order can provide a simple but satisfactory explanation of the adsorption process for a reactive dye. According to the characteristic diagrams and results of adsorption kinetic parameters of reactive dyes on ashes, for the applied amounts of the adsorbents and different initial dye concentrations, it can be concluded that the rate of sorption is fully functionally described by second order adsorption model. According to the results, the rate constant of pseudo-second order decreases with increasing initial dye concentration and increases with increasing amount of adsorbent – ash.
    Źródło:
    Archives of Environmental Protection; 2014, 40, 3; 123-135
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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