This paper deals with the problem of best effort traffic delivery in 802.11e contention-based networks. Differently from most previous paper which focus on the support of quality of service (QoS) requirements, we study the tuning of the access parameters for the best effort traffic. The contribution of this paper is threefold. First, we discuss the coexistence between legacy DCF and EDCA statio...

Phone use while driving has become one of the priority issues in road safety, given that it may lead to decreased situation awareness and deteriorated driving performance. It has been suggested that drivers can regulate their exposure to secondary tasks and seek for compatibility of phone use and driving. Phone use strategies include the choice of driving situations with low demands and interru...

The article deals with the development of an innovative model traction transmissions railway vehicles a higher technical level, which allows to eliminate existing shortcomings mechanical system, simplify repair processes and reduce cost, evaluate its level. By reducing overall dimensions weight increasing reliability due equal distribution load shortening power arm, as well number structural el...