In acoustics, noise in which there is equal power per octave.

Picture in picture

In a hollow metallic waveguide, a longitudinally movable metallic plane surface that reflects essentially all the incident energy.
Note: A piston is used for tuning, e.g., fine-tuning a resonant cavity. Synonym plunger.

Synonym lay length.

The network element that routes a call to the release node, and informs the release node that it is capable of performing pivot functionality on that specific call. The pivot node performs the pivoting based on the new destination node information received from the release node. The pivot node must be a Signaling System No.7 (SS7) signaling point. [T1.661-1997]

In a raster-scanned imaging system, the smallest discrete scanning line sample that can contain gray scale information.

Public Key Cryptography Standards

Public Key Encryption

Public Key Infrastructure

A programming language that is designed for use in a wide range of commercial and scientific computer applications.