... towards smaller volume packaging continues. © Company 2009 MEMS Spectroscopy Fourier transforms Infra‐red devices Packaging processes Many microsystems contain freestanding structures whose operating responses are sensitive to variations of ambient conditions. Ideally, the packaging...

... are studied based on Fourier transforms and recursive least square methods. Findings The sound pressure is affected greatly by gas flow, arc length, and current; welding sound source obeys the dipole model; the sound can be better predicted when the three orders derivative of the welding power...

... Pattern recognition Fourier transforms Identification Body regions Eyes Whilst commercial biometric systems are still in their infancy, iris recognition is already being used to check the identity of air passengers. Iris kiosks at Heathrow Airport allow automatic entry into the UK...