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    Wyświetlanie 1-3 z 3
    Tytuł:
    Modelling Pascal traffic in overflow systems
    Autorzy:
    Głąbowski, Mariusz
    Kmiecik, Damian
    Powiązania:
    https://bibliotekanauki.pl/articles/226746.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    negative binomial distribution
    Pascal traffic
    multiservice traffic
    overflow system
    Opis:
    In this paper, impact of changes in parameters of offered traffic on the accuracy of determining the parameters of overflow traffic in hierarchical systems with multi-service traffic was presented. Pascal type traffic streams were offered to the considered systems. The study investigated the impact of changes in the number of sources, intensity of traffic offered by individual classes, as well as changes in the traffic offered by a single free source. The presented results are based on determined relative errors of the values of overflow traffic obtained in simulations and on the basis of calculations.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 1; 155-160
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Economic–geographical method delimiting wagon flows in the region considered: model and algorithm
    Autorzy:
    Chislov, O.
    Bogachev, V.
    Zadorozhniy, Zadorozhniy.
    Bogachev, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/375452.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    traffic simulation
    freight traffic
    operator company
    railway station
    oligopolistic market
    Cartesian ovals
    Pascal’s limaçon
    software package
    symulacja ruchu drogowego
    przewozy ładunków
    firma operatorska
    stacja kolejowa
    rynek oligopolistyczny
    owal Kartezjusza
    ślimak Pascala
    pakiet oprogramowania
    Opis:
    The problem of effective management of the railway freight flows in the conditions of the multiplicity of operators requires the rationalization of the transportation process. The further development of the authors’ research on creating the mathematical model of the railway freight flows in the region transportation and technological system is presented. For the first time, the theory of algebraic curves of higher orders is used to create a territorial model of the oligopolistic market of freight traffic. The algorithm for creating a model of freight transportation is based on the analysis of the qualitative and quantitative indicators of the operator company in the considered region with the use of analytical, heuristic, and graphic capabilities of math software. The theoretical substantia-tion of the territorial picture, the freight transportation market in the region is obtained. The carried-out research allows to specify possible ways of optimization of freight traffic distribution.
    Źródło:
    Transport Problems; 2018, 13, 2; 39-48
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of the rail freight traffic by the method of economic-geographical delimitation in the region of the south-easter coast of the Baltic Sea
    Autorzy:
    Chislov, Oleg
    Bogachev, Viktor
    Zadorozhniy, Vyacheslav
    Demchenko, Oleg
    Khan, Vladimir
    Bogachev, Taras
    Powiązania:
    https://bibliotekanauki.pl/articles/375468.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    freight traffic
    operator company
    oligopolistic market
    Cartesian ovals
    Pascal's limacon
    influence areas
    ruch towarowy
    firma operatorska
    rynek oligopolistyczny
    owal Kartezjusza
    ślimak Pascala
    obszar wpływu
    Opis:
    The results of further research on the creation of a mathematical model of railway freight traffic carried out in a regional transport and technological system are presented. The proposed logistic approach is applied to the issues of optimizing the management of transportation directed to ports located on the southeast coast of the Baltic Sea. Built on the basis of a comprehensive assessment of the transport infrastructure of the region under consideration and the performance of the operating company, the mathematical model provides ample opportunities to address issues of regulating of transportation. The method of economic and geographical delimitation of the ≪influence areas≫ of loading stations is significantly developed both in terms of using the geometric properties of higher order algebraic curves and in terms of a deeper approach to studying the transportation process. The results of the research can serve as one of the basis for improving the economic efficiency of the functioning of international transport corridors in the framework of multimodal transport.
    Źródło:
    Transport Problems; 2019, 14, 2; 77-87
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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