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  2. Program and System Information Protocol - Wikipedia

    en.wikipedia.org/wiki/Program_and_System...

    The Program and System Information Protocol (PSIP) is the MPEG (Moving Picture Experts Group, a video and audio industry group) and privately defined program-specific information originally defined by General Instrument for the DigiCipher 2 system and later extended for the ATSC digital television system for carrying metadata about each channel ...

  3. Program-specific information - Wikipedia

    en.wikipedia.org/wiki/Program-specific_information

    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.

  4. Pound per square inch - Wikipedia

    en.wikipedia.org/wiki/Pound_per_square_inch

    The kilopound per square inch (ksi) is a scaled unit derived from psi, equivalent to a thousand psi (1000 lbf/in 2). ksi are not widely used for gas pressures. They are mostly used in materials science, where the tensile strength of a material is measured as a large number of psi. [4] The conversion in SI units is 1 ksi = 6.895 MPa, or 1 MPa ...

  5. Psi - Wikipedia

    en.wikipedia.org/wiki/Psi

    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

  6. List of ATSC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_ATSC_standards

    Presentation: Audio and Video standards (to be determined), Ultra HD with High Definition and standard-definition multicast, Immersive Audio; Applications: Screen is a web page; Finalized Standards. A/200: Regional Service Availability (finalized on July 8, 2020) A/300: ATSC 3.0 [10] A/321: System Discovery and Signalling; A/322: Physical Layer ...

  7. Pascal (unit) - Wikipedia

    en.wikipedia.org/wiki/Pascal_(unit)

    The pascal (Pa) or kilopascal (kPa) as a unit of pressure measurement is widely used throughout the world and has largely replaced the pounds per square inch (psi) unit, except in some countries that still use the imperial measurement system or the US customary system, including the United States.

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  9. Strength of materials - Wikipedia

    en.wikipedia.org/wiki/Strength_of_materials

    One thousand psi is abbreviated ksi. A factor of safety is a design criteria that an engineered component or structure must achieve. F S = F / f {\displaystyle FS=F/f} , where FS: the factor of safety, Rf The applied stress, and F: ultimate allowable stress (psi or MPa) [ 13 ]