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Wyszukujesz frazę "Pešek, Pavel" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Exchange of Views Presented on Facebook: Discussions and Their Participants
Autorzy:
Pešek, Pavel
Powiązania:
https://bibliotekanauki.pl/articles/526463.pdf
Data publikacji:
2018
Wydawca:
Univerzita sv. Cyrila a Metoda. Fakulta masmediálnej komunikácie
Tematy:
Facebook
New media
Internet discussions
Debaters. Interaction
Social media
Communication
Opis:
Facebook discussion threads are often associated with a controversial exchange of views. This study deals with these threads. In the theoretical part the author aims to look at Facebook as a separate internet medium that requires active interaction from its users. He deals with Marshall McLuhan’s and Erving Goffman’s theories and aims to work with the evolution of the social network. In the practical part the author focuses on Facebook discussion threads themselves and on their participants. To cope with his research problem, he employs two qualitative methods, discourse analysis of Facebook’s discussion threads and semi-structured interviews with debaters. He tries to distinguish whether there are any interaction patterns, discourse terminology used by debaters within discussion threads and he also aims to describe Facebook discussion threads from an overall perspective. In semi-structured interviews with Facebook debaters the main goal is to reveal the motivation to present their opinion online and reflection of the social platform itself.
Źródło:
Media Literacy and Academic Research; 2018, 1, 2; 14-26
2585-8726
Pojawia się w:
Media Literacy and Academic Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A meshless method for subsonic stall flutter analysis of turbomachinery 3D blade cascade
Autorzy:
Prasad, Chandra Shekhar
Šnábl, Pavel
Pešek, Luděk
Powiązania:
https://bibliotekanauki.pl/articles/2090682.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stall flutter
turbomachinery cascades
reduce-order-model
meshless method
viscous-inviscid coupling
boundary element method
metoda bezsiatkowa
metoda elementów brzegowych
Opis:
The analysis of subsonic stall flutter in turbomachinery blade cascade is carried out using a medium-fidelity reduced-order aeroelastic numerical model. The model is a type of field mesh-free approach and based on a hybrid boundary element method. The medium-fidelity flow solver is developed on the principle of viscous-inviscid two-way weak-coupling approach. The hybrid flow solver is employed to model separated flow and stall flutter in the 3D blade cascade at subsonic speed. The aerodynamic damping coefficient w.r.t. inter blade phase angle in traveling-wave mode is estimated along with other parameters. The same stability parameter is used to analyze the cascade flutter resistance regime. The estimated results are validated against experimental measurements as well as Navier-Stokes based high fidelity CFD model. The simulated results show good agreement with experimental data. Furthermore, the hybrid flow solver has managed to bring down the computational cost significantly as compared to mesh-based CFD models. Therefore, all the prime objectives of the research have been successfully achieved.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139000, 1--9
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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