Device for air saturation in flight deck of passenger or cargo aircraft
FIELD: transport; heating. SUBSTANCE: air saturation device allows to adjust air saturation in flight deck of passenger or cargo aircraft by injection of air conditioning fluid media into cabin via outlet nozzle. Air conditioning fluid media contains water as one of components, it is dispersed in the injection point in immediate vicinity of outlet nozzle. Air conditioning fluid media contains air-blast supplied to of outlet nozzle with water being injected into it. Air-blast is supplied to injection point at temperature exceeding required effective temperature of air-blast having passed outlet nozzle by preset value. Other variant of invention implementation regards air conditioning fluid media with water as sole component and water is sprayed at temperature exceeding temperature in flight deck. EFFECT: comfortable air humidity in aircraft flight deck and sustaining comfortable heat for passengers on board. 10 cl, 6 dwg
In this paper, we study the behavior of voice over IP (VoIP) traffic over IEEE 802.11 wireless networks. Specifically, we propose a QoS provisioning mechanism for VoIP traffic, and suggest a practical solution to configuring the 802.lie enhanced distributed control access (EDCA) parameter sets for different types of traffic. With our mechanism, the EDCA parameter sets can be easily configured via software interface in off-the-shelf WiFi phone products and it is not required to modify the operations of access points or 802.11 MAC layer protocols. The performance of our mechanism is evaluated via ns-2 simulations and via laboratory experiments over Quanta's 02 dual-mode handsets. The results show our mechanism can provide effective and efficient QoS provisioning for VoIP traffic over IEEE 802.11 WLANs.