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Wyszukujesz frazę "Pencheva, Velizara" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Intelligent system for improved safety of pedestrian traffic lights
Autorzy:
Evstatiev, Boris
Balbuzanov, Toncho
Beloev, Ivan
Pencheva, Velizara
Powiązania:
https://bibliotekanauki.pl/articles/375093.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
traffic safety
pedestrians
detection
road crossing
bezpieczeństwo na drodze
piesi
wykrywanie
skrzyżowanie drogowe
Opis:
The high concentration of vehicles and pedestrians at traffic lights makes them a common place for road accidents to occur. The main reason for them is the behavior of vehicle drivers and pedestrians, who often violate the traffic law because of incorrect judgments. This study investigates a special type of traffic lights, which are located on places without roads intersection. In the present study, a concept for improving the safety of such traffic lights is suggested. The method suggests a novel algorithm for the detection of pedestrians, based on image processing and a background pattern. The concept of the detection system makes it applicable in different climatic conditions, such as rain, snow, dust, etc., and offers many advantages over the current situation in Bulgaria. The intelligent system only detects pedestrians in the waiting zones, in order to optimize the traffic problems, such as traffic delays, use by disabled people, protection against troublesome users, etc.
Źródło:
Transport Problems; 2019, 14, 1; 35-43
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the use of alternative energy sources in inland waterway transport
Autorzy:
Pencheva, Velizara
Asenov, Asen
Beloev, Ivan
Georgiev, Valeri
Powiązania:
https://bibliotekanauki.pl/articles/374013.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
water transport
vessel
electric propulsion
river Danube
alternative energy
transport wodny
jednostka pływająca
napęd elektryczny
rzeka Danube
energia alternatywna
Opis:
A study has been conducted on the use of alternative energy sources for propulsion of a vessel in inland waterway transport. It is clear that at this stage it is most appropriate to use a vessel designed for short-haul trips between two banks of a ferryboat for passengers and luggage or for recreation and entertainment. On this basis, research has been conducted on a newly designed and built vessel to carry up to 12 people. The drive is fully powered by 180-Ah batteries at 48 V. The batteries are charged by the sun through 5-kW solar panels. The results show that the vessel powered by two 5-kW electric motors can sail autonomously for about 1.5 hours, to travel about 13 km, at an average speed of 7.9 km/h with an average energy consumption of 71.3 kWh/100km when sailing on a linearly reversible route including sailing downstream and upstream on the Danube River.
Źródło:
Transport Problems; 2019, 14, 3; 109-120
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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