TransPerformance The Performer The keypad and Liquid Crystal Display (LCD) on this guitar are the obvious tip-off to embedded electronics. A closer look reveals that the bridge and tailpiece are quite different, too. The guitar's six strings pass through a tuner assembly to the back of the guitar where six stepper motors simultaneously adjust each string's tension. The whole system is controlled by a microcontroller, but analog ICs interface to the stepper motors. The motors' speeds are adjustable with full-speed changes of one whole step per second. Touch-up accuracy is ± 2 cents. A cent is a logarithmic unit to measure musical intervals with 1,200 cents equal to one octave. For more information on TransPerformance's The Performer, go to http://rbi.ims.ca/4928-543.
The implementation of a new diesel fuel standard in the US has considerably improved the environmental performance of diesel vehicles. The Environmental Protection Agency (EPA) says that the new ultra-low sulfur diesel (ULSD) fuel has combined with other improved technologies to reduce diesel's particulate matter (PM) emissions by 99%.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.