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Wyszukujesz frazę "Vrábel, Ján" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Change of drivers reaction time depending on the amount of alcohol consumed by the driver - the case study
Autorzy:
Vrabel, Jan
Sarkan, Branislav
Vashisth, Amit
Powiązania:
https://bibliotekanauki.pl/articles/263277.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
alcohol consumption
driver´s reaction time
stopping distance
driver´s attention
Opis:
Each driver should drive according to the actual road traffic rules of the country in which he is currently located. The law systems of various states of Europe allow an increased maximal blood alcohol level of driver. As the fact that no small number of road accidents is caused because of the influence of alcohol on the driver, it is necessary to focus the attention of the society on this issue. The paper deals with the influence of alcohol on the reaction time of the driver. The effect of alcohol on driver behaviour has been studied. The reaction time of several drivers from a selected group of people was measured. At first (before alcohol drinking) the physical and mental condition of the drivers was assessed, using a series of question. Subsequently, the measurements were carried out with a sober driver. After this initial measurement the driver began to drink alcohol and after 20 minutes the level of alcohol in driver´s breath was determined by certificated equipment. It followed by starting the vehicle at a speed of approximately 50 km/h and stopping the vehicle in front of the simulated barrier. During the tests of the stopping distance, the mean fully developed deceleration was explored as the supporting variables. As the most important variable was the driver´s reaction time. It was researched by using of the video-analysing from two synchronized cameras. One camera was placed on the windscreen to monitor the situation in front of the vehicle, the other one monitored the movement of the driver´s feet. The aim of this paper is to focus on the fact that there is a dependence between the amount of consumed alcohol and the driver´s reaction time, which significantly affects the road safety. The reaction time of the driver directly influences to the stopping distance thus it is resolute for stopping the vehicle before a barrier.
Źródło:
Archiwum Motoryzacji; 2020, 87, 1; 47-56
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of vehicle load on driving characteristics
Autorzy:
Rievaj, Vladimir
Vrábel, Ján
Synák, František
Bartuška, Ladislav
Powiązania:
https://bibliotekanauki.pl/articles/102297.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
gravity center of vehicle
road curve radius
speed at passage
directional deviation
vehicle stability
środek ciężkości pojazdu
promień łuku drogowego
prędkość w przejściu
odchylenie kierunkowe
stabilność pojazdu
Opis:
Many traffic accidents are due to an incorrect assessment of the current situation by the driver of the vehicle. With correct assessment of the situation, the driver has also to take into account a number of other factors. This article focuses on some of these factors such as the vehicle load, vehicle speed and curve radius. The first part of the article deals with the position of the vehicle center of gravity (CG), which has a major impact on the driving characteritics of the vehicle. The paper demonstrates the calculation of the maximum speed of a car model and truck model (without load and with load) when cornering. The center of gravity has an effect on the vehicle axles load distribution, and thereby on braking forces. This issue is dealt with in the second part of the paper. In the last part the calculation of the braking force as a function of the adhesion coefficient of the tires depending on the road surface is mentioned. The importance of the contribution consists in quantifying the impact of vehicle load on its driving characteristics.
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 1; 142-149
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring mechanical resistances of a heavy good vehicle by coastdown test
Autorzy:
Skrúcaný, Tomáš
Semanová, Štefánia
Kendra, Martin
Figlus, Tomasz
Vrábel, Ján
Powiązania:
https://bibliotekanauki.pl/articles/102466.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
mechanical resistance
rolling resistance
coastdown test
heavy goods vehicle
opór mechaniczny
opory toczenia
test rozbiegu
pojazd ciężarowy
Opis:
Mechanical resistance consists of rolling tire resistance and power losses of vehicle drive train. Rolling resistance is done by deformation of vehicle tires on road surface. Power losses represent resistances of bearings and wheels rolling and oil wading. This resistance acts continuously during vehicle wheels rotation. The value of this driving resistance is possible to test by different methods. Laboratory tests on rotating drum or dynamometer are usually used. This paper deals about rare method – coastdown exterior driving test. It was done with a casual truck trailer set. Results of this test method show the value of this resistance forces which are converted into a coefficient of mechanical resistance and discussed in the point of view of rolling resistance coefficient values.
Źródło:
Advances in Science and Technology. Research Journal; 2018, 12, 2; 214-221
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical Analyses of Selected Maintenance Parameters of Vehicles of Road Transport Companies
Autorzy:
Caban, Jacek
Droździel, Paweł
Krzywonos, Leszek
Rybicka, Iwona
Šarkan, Branislav
Vrábel, Ján
Powiązania:
https://bibliotekanauki.pl/articles/102396.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
car maintenance
fleet
road transport
statistical analyses
utrzymanie samochodu
flota
transport drogowy
analizy statystyczne
Opis:
The article presents the methods for preliminary statistical analyses of selected maintenance parameters of vehicles in road transport companies. The methodology was illustrated by presenting the results pertaining to the calculations of the maintenance intensity as well as the cost of parts and repairs of cars in the Lublin Regional Branch of the Polish Post Logistics Centre. These results provided comparative material useful in the evaluation of the maintenance efficiency of various road transport systems.
Źródło:
Advances in Science and Technology. Research Journal; 2019, 13, 1; 1-13
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Packaging Waste Research Responding to the Rise of Transport and Logistics Volumes during the Covid-19 Pandemic
Autorzy:
Pečman, Jan
Vrábel, Ján
Mašek, Jaroslav
Šedivý, Josef
Stopková, Mária
Bartuška, Ladislav
Powiązania:
https://bibliotekanauki.pl/articles/24200875.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
e-commerce
transport
logistics
shipping package
packaging waste
Covid-19
Opis:
The management of packaging material and its transport flow, including waste management, has become the focus of attention in recent decades, not least because of the emphasis on the requirements of sustainable development. Due to ever-increasing volume various types of packages, i. e. coming not only from industrial production, transport and trade, where its management is regulated, organized and controlled, but also packaging waste that is generated in households and where this waste ends at best sorted into containers according to material and in the worst case as municipal waste, or it is used as fuel in the incinerator. Author´s team defined the research idea in the direction of packaging waste, coming from online shopping, logistics and shipment distribution. The research was conducted over the year 2021 in the Czech Republic, during the Covid-19 pandemic, when online shopping was on its rise and, for many people, it became as a partly substitute for regular shopping in the future. In regard to an analytical part of the research, specific empirical methods were applied. The research hypothesis is evaluated statistically using a pairwise test. The presentation of the research per se is preceded by a literature review with citations of legislative articles and scientific papers related to the topic discussed. This section is followed by a description of the paradox in terms of online trading. The next part of the article presents the research findings, their summary and related conslusions.
Źródło:
Archiwum Motoryzacji; 2023, 101, 3; 50--66
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Overview of Selected Hydraulic Devices Supporting Road Rescue Operations
Autorzy:
Caban, Jacek.
Powiązania:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki 2017, nr 3, s. 81-89
Współwytwórcy:
Droździel, Paweł (1968- ). Autor
Vrábel, Ján. Autor
Data publikacji:
2017
Tematy:
Ratownictwo
Systemy ratownictwa
Transport drogowy
Sprzęt ratownictwa technicznego
Artykuł z czasopisma wojskowego
Artykuł z czasopisma naukowego
Opis:
Bibliografia, netografia na stronach 87-88.
Dostawca treści:
Bibliografia CBW
Artykuł
    Wyświetlanie 1-6 z 6

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