For the detection of cracks such as stress corrosion cracking (SCC) that occur in the longitudinal direction of a pipeline, devices based on the ultrasonic techniques are frequently used. Ultrasonic devices, such as those developed by British Gas, employ an array of wheel type piezoelectric transdu...
Everyone has a job each day, each serves as a cog in the wheel and things happened smoothly until dinner when Mary shows up with dinner for the hungry staff, students and visitors. Students divide up into the field crews, survey and the experiemental crew who spend the day with archaeologi...
The Man Behind the Wheel of Driverless Trucks 0 seconds of 1 minute, 49 secondsVolume 0% Next Up Southwest began scheduled passenger service with three Boeing 737-200s in 1971 on just two routes: between Dallas Love Field and Houston Intercontinental Airport and between Dallas Love Field and ...