Abstract: A method for determining how well configurations for a gas turbine propulsion system attain selected acoustic wave energy emissions criteria based on acquiring a plurality of acoustic frequency spectra representations of a noise representation therefor over an operating duration. Relative peaks in the acoustic frequency spectra representations are then located and the forms of at least one of those peaks is altered with respect to acoustic frequency in manners substantially matching acoustic wave energy emissions changes corresponding to configuration changes in gas turbine propulsion systems which are then evaluated to provide an operating parameter noise value. One of those operating parameter noise values that best meets the selected acoustic wave energy emissions criteria is used to aid in determining corresponding configurations changes to thereby better meet those criteria.

Abstract: The claimed subject matter provides a system and/or a method that facilitates implementing a binding between a radio frequency identification (RFID) process and a device. An RFID process can receive a tag read event from a device and make the tag read event available for at least one high level application. A binding engine can bind the RFID process to the device while decoupling a design time activity and a deployment time activity associated with the RFID process. In addition, the binding engine can include at least one of a device mapping component that employs a device binding; and a component configuration module that employs a component binding.

Abstract: A duct 26 has circumferentially distributed features capable of scattering acoustic energy associated with fluid dynamic shocks 34 extending in a shock orientation direction D. Each feature is oriented, over at least a portion of its length, substantially perpendicular to the shock orientation direction. The features may be splices 42 used to connect segments of an acoustic liner 30, partitions 56 in a stability enhancing casing treatment 32, or other features capable of scattering acoustic energy associated with shocks.