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Wyszukujesz frazę "Hanáková, Lenka" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Impact of pilots’ tiredness on the outcome of psychological testing
Autorzy:
Socha, Vladimir
Hanakova, Lenka
Freigang, Michal
Kraus, Jakub
Stojic, Slobodan
Socha, Lubos
Hanak, Peter
Powiązania:
https://bibliotekanauki.pl/articles/375429.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
human factors
fatigue
psychological testing
performance
pilot
flight symulator
wskaźniki ludzkie
zmęczenie
test psychologiczny
wydajność
symulator lotu
Opis:
Presented work is primarily oriented on the experimental verification of the influence of fatigue on the psychological condition of the flying personnel, using psychological and performance tests. For the evaluation of a pilot performance, the 24 hours experiment was conducted. In total, eight subjects participated in the experimental measurements. Eight participants went through several tests, including simulator flights, to investigate the effects of the fatigue on the results of psychological measurements. Measurements included workload evaluation, using NASA task load evaluation concept and performance testing, using the so-called OR-test. Significant statistical differences between measurements performed during 24 hours were not found in the case of NASA task load Scores. In the case of OR-test, Friedman ANOVA and subsequent post-hoc analysis show that the greatest decrease in performance was observed in approximately 22 hours of wakefulness, i.e. approximately in half of the measuring process. The concept of 24-hour measurements for the quantification of fatigue is not commonly used yet as well as objectivization using performance testing. As the apparent effect of fatigue is mainly on performance testing results, it can be argued that this work could serve as a basis for further studies on fatigue. Also, it could serve as a support for introducing new pilots' psychological testing procedures in the future, which could contribute to current efforts to improve aviation safety.
Źródło:
Transport Problems; 2019, 14, 2; 55-67
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Adjustment of the Tundish Water Model of Continuous Casting
Autorzy:
Blaško, Peter
Bulko, Branislav
Petrík, Jozef
Demeter, Peter
Socha, Vladimir
Hanáková, Lenka
Palfy, Pavol
Solc, Marek
Vasilňáková, Andrea
Powiązania:
https://bibliotekanauki.pl/articles/2048879.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
steel
tundish
water model
continuous casting
statistical methods
Opis:
Whereas approximately 96.3% of the steel produced worldwide is made by continuous casting, great emphasis is put on the superior efficiency of this process. The water model of the tundish and mathematical modeling is often used for the simulation of the steel flow during continuous casting. The experiments were performed on a model of the tundish with two outlets, at two casting speeds (0.8 m.s-1 and 1.2 m.s-1). Eight setups of the tundish were evaluated, which differed in the design of the dams (with or without drainage holes), in their distance from the center of the tundish, and their height. The contribution of the work is the analysis of phenomena in the tundish water model in conditions of repeatability (ten repetitions). The goal is to find the setup providing the most symmetrical flow, with the minimum difference in the residence times Δτ on the two outlets. Taking into account the results obtained at both casting speeds, the most preferred is setup 2 with the 87 mm high dams placed 587 mm from the center of tundish (Δτ = 0.5). The setup 3 (Δτ = 8.25) appears to be the least appropriate. The higher the casting speed, the higher the number of unsuitable arrangements.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 97-104
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
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