نتایج جستجو برای: roadside hawkers

تعداد نتایج: 2740  

Journal: :Wilderness & Environmental Medicine 2016

Journal: :Streetnotes 2016

2014
Wenjing Zhao Shuangjiang Wu

For some scenarios of vehicle tracking and identification, it is desired that radio-frequency identification (RFID) interrogators can be deployed on roadside lampposts or high poles. In order to meet this requirement, active RFID electronic license plate (e-plate) with a slot-dipole antenna is proposed to provide up-tilted beams. Numerical simulations demonstrate that the proposed e-plate anten...

2004
P D Swann MC Boorman JJ Potter

Background In the state of Victoria in Australia, the development of effective alcohol and driving legislation has produced significant reductions in alcohol related road trauma over the past three decades. The development of drug driving legislation in recent years has followed a similar progression from providing for impairment based enforcement to the recent introduction of random roadside s...

2008
Biplab Sikdar

Traditional wireless Medium Access Control (MAC) protocols suffer from a number of drawbacks when used in vehicle to roadside networks. This paper proposes an efficient MAC protocol that addresses a number of critical aspects required for MAC protocols for vehicle to roadside networks including elimination of hidden terminals, prioritized and fast handoff, fairness among nodes and optimal choic...

Journal: :The Journal of Toxicological Sciences 2002

2009
Pino Caballero-Gil Candelaria Hernández-Goya Amparo Fúster-Sabater

Node authentication in VANETs is one of the most important research topics nowadays. VANETs present unique challenges such as high node mobility, real-time constraints, scalability, gradual deployment and privacy. No existent technique addresses all these requirements. In particular, both inter-vehicle and vehicle-to-roadside wireless communications present different characteristics that should...

2017
Maria Jesús Herrero Antonia Domingo-Salvany Rafael de la Torre

The data presented in this article are related to the paper "Prevalence of psychoactive substances, alcohol and illicit drugs, in Spanish drivers: A roadside study in 2015". (https://doi.org/10.1016/j.forsciint.2017.07.005) Domingo-(Salvany et al., 2017) [1]. In that paper it was not possible to directly compare 2015 results with previous editions for various reasons, one of which was the lack ...

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