Members of the board of directors of Altria Group as/of February 2013 were: 1  Elizabeth E. Bailey (1989â ), professor emerita, the Wharton School, University of Pennsylvania. 2  Gerald L. Baliles (2008â ), director, Miller Center of Public Affairs at University of Virginia; former Virginia governor.
An extra-oral digital panoramic dental x-ray imaging system is disclosed for multi-layer panoramic and transverse X-ray imaging. The system includes an X-ray source and a digital imaging device capable of âreal timeâ frame mode output.
The same data can be packed into a PPM frame and only take 20ms per update. Transmitters and receivers are the two most common R/C devices that use PPM. The following are lists of common devices that use PPM and PWM. R/C Devices that use PWM Pulses: 1  Servos. 2  Electronic Speed Controllers. 3  R/C switches. 4  R/C lights.