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Managing Indoor Air Quality, Fourth EditionAs predicted in the earlier editions, concerns over Indoor Air Quality (IAQ) have driven it to the forefront of current workplace problems. More than ever, health, economic and legal matters associated with IAQ seem destined to make it a dominant problem for developers, owners and managers of commercial and institutional properties well into this... | | Phased Array Antenna Handbook, Second EditionPhased array antennas consist of multiple stationary antenna elements, which are fed coherently and use variable phase or time-delay control at each element to scan a beam to given angles in space. Variable amplitude control is sometimes also provided for pattern shaping. Arrays are sometimes used in place of fixed aperture ... | | |
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