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  2. ACN-PCN method - Wikipedia

    en.wikipedia.org/wiki/ACN-PCN_method

    The Aircraft Classification Number (ACN) – Pavement Classification Number (PCN) method is a standardized international airport pavement rating system promulgated by the ICAO in 1981. The method has been the official ICAO pavement rating system for pavements intended for aircraft of apron (ramp) mass greater than 5700 kg from 1981 to 2020. [ 1 ]

  3. List of airline codes (P) - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes_(P)

    This is a list of all airline codes. ... PCN Princeton Aviation Corporation: PRINCETON United States PRY Priority Air Charter: PRIORITY AIR United States

  4. Polychlorinated naphthalene - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_naphthalene

    Polychlorinated naphthalene ( PCN) are the products obtained upon treatment of naphthalene with chlorine. The generic chemical formula is C 10 H 8− (m+n) Cl (m+n). Commercial PCNs are mixtures of up to 75 components and byproducts. [ 1] The material is an oil or a waxy solid, depending on the degree of chlorination.

  5. List of medical abbreviations: P - Wikipedia

    en.wikipedia.org/wiki/List_of_medical...

    PAC. premature atrial contraction. pulmonary artery catheter, pulmonary artery catheterisation. PACU. Post-anesthesia care unit[1] PAD. peripheral artery disease (aka peripheral artery occlusive disease) postadmissionday (e.g. PAD 6 equals the sixth day of being in hospital)

  6. List of ISO 3166 country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

    Current ISO 3166 country codes. The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted.

  7. Process control network - Wikipedia

    en.wikipedia.org/wiki/Process_control_network

    Process control network. A Process Control Network (PCN) is a communications network layer that is a part of the Industrial Automation networks in Process Industries. This network is used to transmit instructions and data between control and measurement units and Supervisory Control and Data Acquisition ( SCADA) equipment.

  8. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997. was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled. 2009: overlaid by 442. 761.

  9. Pennsylvania Cable Network - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Cable_Network

    pcntv .com /how-to-watch /. PCN (the Pennsylvania Cable Network) is a private, non-profit cable television network dedicated to 24-hour coverage of government and public affairs in the Commonwealth of Pennsylvania. Built on the C-SPAN model, it features live coverage of both Houses of the Pennsylvania General Assembly, as well as other forms of ...