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** SAW filter, a type of electronic filter
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** and SAW
** and filter
** Electronic filter, an electronic circuit which processes signals, for example to remove unwanted frequency components
** Digital filter, a system that performs mathematical operations to reduce or enhance certain aspects of a signal
** Analogue filter, a basic building block of signal processing much used in electronics, see Passive analogue filter development
** Affective filter, an impediment to learning or acquisition caused by negative emotional (" affective ") responses to one's environment.
** Subtractive synthesis, a method of creating a sound by removing harmonics, characterised by the application of an audio filter to an audio signal
** Pass band or Passband, the range of frequencies that can pass through an electronic filter without being attenuated
** In the case of narrow-band bandpass filters, the Q determines the-3dB bandwidth but also the degree of rejection of frequencies far removed from the center frequency ; if these two requirements are in conflict then a staggered-tuning bandpass filter may be needed.
** For high-pass and low-pass ( as well as band-pass filters far from the center frequency ), the required rejection may determine the slope of attenuation needed, and thus the " order " of the filter.
** Chebyshev filter – slight peaking / ripple in the passband before the corner ; Q > 0. 7071 for 2nd-order filters
** and type
** Aquila pattern power armour is the most commonly used type of power armour in the Space Marines inventory
** Marching band, a group of performers that consist of instrumental musicians who generally perform outdoors and incorporate some type of marching ( and possibly other movements ) with their musical performance
** Strings are not a separate data type, but are conventionally implemented as null-terminated arrays of characters.
** The winding knob of a camera employs a ( silent ) wrap-spring type as a clutch in winding and as a brake in preventing it from being turned backwards.
** either by additional attributes ( such as the " type " attribute which indicates the MIME type of the external entity, or the " charset " attribute which indicates its encoding ),
** A limit order is a type of order to buy a security at no more ( or sell at no less ) than a specific price on an exchange.
** Advanced Heavy Water Reactor ( AHWR )— A proposed heavy water moderated nuclear power reactor that will be the next generation design of the PHWR type.
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