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PSIP is defined in ATSC standard A/65, the most recent revision of which is A/65:2013, published in 2013. [1] A/69 is a recommended practice for implementing PSIP in a television station. [2] PSIP also supersedes the A/55 and A/56 protocol methods of delivering program guide information (which the ATSC has deleted).
The PSI data as defined by ISO/IEC 13818-1 (MPEG-2 Part 1: Systems) includes four tables: PAT (Program Association Table) CAT (Conditional Access Table) PMT (Program Mapping Table) NIT (Network Information Table) The MPEG-2 specification does not specify the format of the CAT and NIT. PSI is carried in the form of a table structure.
Psi (instant messaging client), XMPP client program Potentially Shippable Increment , in the Scrum software development methodology Program-specific information , part of the MPEG transport stream protocol
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The Keller Plan has mainly been used in higher education, particularly as a more personalized form of instruction in large classes, but there is nothing inherent in Keller's formulation to restrict its application to particular grade levels, content, or types of courses; [4] for instance the papers [5] and [6] report on usage in elementary school and junior high school, respectively.
This pattern is also known, for monopulse purposes, as the "sum" pattern, as it was obtained by summing all of the elements together. Going forward we will suppress the Δ {\displaystyle \Delta } subscript and instead use only ψ {\displaystyle \psi } with the understanding that it represents the deviation of the steered target phase and the ...
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PSI-blast based secondary structure PREDiction (PSIPRED) is a method used to investigate protein structure. It uses artificial neural network machine learning methods in its algorithm. [ 2 ] [ 3 ] [ 4 ] It is a server-side program, featuring a website serving as a front-end interface, which can predict a protein's secondary structure ( beta ...