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Wyszukujesz frazę "Nagy, K." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Transport safety of ŽSR level crossings
Autorzy:
Rástočny, K.
Ilavský, J.
Nagy, P.
Powiązania:
https://bibliotekanauki.pl/articles/393439.pdf
Data publikacji:
2010
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
bezpieczeństwo
transport kolejowy
przejazd kolejowy
Koleje Słowackie
safety
railway transport
level crossing
Slovak railways
Opis:
Railway transport is one of processes controlled with a certain level of risk. It is apparent that due to a limited level of our knowledge, the technical level and limited funds we cannot count on absolute safety (zero risk) but we must admit that in a real technical system some error or fault may occur and its occurrence may mean a certain risk for the controlled process. The authors focus on proposing and presenting potentially usable measures that could increase the safety of traffic operation at the level crossings operated by the ŽSR (Slovak Railways). Technical and organizational measures are discussed separately. Some of proposed measures are specific for Slovak conditions only, however, to a certain extent some findings can be generalized and possibly applied in other countries, too.
Źródło:
Archives of Transport System Telematics; 2010, 3, 3; 39-45
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical etching of Nitinol stents
Autorzy:
Katona, B.
Bognar, E.
Berta, B.
Nagy, P.
Hirschberg, K.
Powiązania:
https://bibliotekanauki.pl/articles/307073.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
stent
nitinol
chemical etching
metallic surface area
Opis:
At present the main cause of death originates from cardiovascular diseases. Primarily the most frequent cause is vessel closing thus resulting in tissue damage. The stent can help to avoid this. It expands the narrowed vessel section and allows free blood flow. The good surface quality of stents is important. It also must have adequate mechanical characteristics or else it can be damaged which can easily lead to the fracture of the implant. Thus, we have to consider the importance of the surface treatment of these implants. In our experiments the appropriate design was cut from a 1.041 mm inner diameter and 0.100 mm wall thickness nitinol tube by using Nd:YAG laser device. Then, the stent was subjected to chemical etching. By doing so, the burr created during the laser cutting process can be removed and the surface quality refined. In our research, we changed the time of chemical etching and monitored the effects of this parameter. The differently etched stents were subjected to microscopic analysis, mass measurement and in vivo environment tests. The etching times that gave suitable surface and mechanical features were identified.
Źródło:
Acta of Bioengineering and Biomechanics; 2013, 15, 4; 3-8
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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