Air as Medium

AirDisplay: Experimenting with Air Flow as a Communication Medium

This paper presents a psychophysical experiment using a multi-fan device to communicate information to the user via air intensity and direction. We describe the implementation of a prototype, the AirDisplay. We identify the most effective configuration at which users can discern different air patterns by manipulating the fans’ speed, the distance between the fans, and the different air patterns...

How Electric Control Valve Actuators Can Eliminate The Problems of Compressed Air as a Power Medium

T a new major technological advance is available that can help control-valve users avoid many of the problems and inefficiencies associated with using compressed air as a power medium. The new solution uses electric power and eliminates dependence on compressed air. This totally electric solution is appropriate and cost-effective for a wide variety of control-valve applications, including those...

77 as Porous Medium

Game Optimal Support Time of a Medium Range Air-to-Air Missile

This paper formulates a support time game arising in one-on-one air combat with medium range air-to-air missiles. The game model provides game optimal support times of the missiles that can receive target information from the launching aircraft for selectable support times. The payoffs of the game are formulated as aweighted sumof the probabilities of hit to the adversary and own survival. Unde...

Saliva as a diagnostic medium.

BACKGROUND This is a review of current knowledge on the use of saliva, gingival cervical fluid and mucosal transudate in the detection of some oral and systemic diseases as well as drugs. Oral fluid is a diagnostic medium that can be easily collected and with minimal invasion but it has been neglected in the past. Today, saliva is being used more often to diagnose: HIV virus, oro-facial and sys...