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  2. PSA prepayment model - Wikipedia

    en.wikipedia.org/wiki/PSA_prepayment_model

    The PSA prepayment model is a prepayment scale developed by the Public Securities Association in 1985 for analyzing American mortgage-backed securities.The PSA model assumes increasing prepayment rates for the first 30 months after mortgage origination and a constant prepayment rate thereafter. [1]

  3. List of PSA engines - Wikipedia

    en.wikipedia.org/wiki/List_of_PSA_engines

    The 2019 facelift of the Opel/Vauxhall Astra K included a new 1.2 3-cylinder turbo with 110, 130 or 145 hp but this is not the PSA PureTech engine. This engine is part of GM’s E-Turbo range and had already been extensively developed at by GM for the 2019 Astra before PSA purchased the company. An all-new Astra, based on a PSA platform and ...

  4. Pressure swing adsorption - Wikipedia

    en.wikipedia.org/wiki/Pressure_swing_adsorption

    Pressure swing adsorption (PSA) is a technique used to separate some gas species from a mixture of gases (typically air) under pressure according to the species' molecular characteristics and affinity for an adsorbent material.

  5. Pacific Southwest Airlines - Wikipedia

    en.wikipedia.org/wiki/Pacific_Southwest_Airlines

    Pacific Southwest Airlines (PSA) was a low-cost US airline headquartered in San Diego, California, that operated from 1949 to 1988. It was the first substantial scheduled discount airline. PSA called itself "The World's Friendliest Airline" and painted a smile on the nose of its airplanes, the PSA Grinningbirds. [2]

  6. Probabilistic risk assessment - Wikipedia

    en.wikipedia.org/wiki/Probabilistic_risk_assessment

    One point of possible objection interests the uncertainties associated with a PSA. The PSA (Probabilistic Safety Assessment) has often no associated uncertainty, though in metrology any measure shall be related to a secondary measurement uncertainty, and in the same way any mean frequency number for a random variable shall be examined with the dispersion inside the set of data.

  7. PSA Group - Wikipedia

    en.wikipedia.org/wiki/PSA_Group

    PSA and BMW have an agreement to develop the 1.6 Prince engine. PSA also sells their engines, gearboxes and other parts to small independent manufacturers such as De La Chapelle and PGO. [57] This PSA Peugeot Citroën 1.6-litre turbo petrol engine has received the International Engine of the Year awards a total of eight times, from 2007 to 2014 ...

  8. HuffPost Data

    projects.huffingtonpost.com

    Forecasts for 2014’s races for governor, based on HuffPost Pollster’s poll-tracking model 06/19 Hospice, Inc. A Huffington Post investigation into the business of dying

  9. PSA Certified - Wikipedia

    en.wikipedia.org/wiki/PSA_Certified

    The PSA Certified program seeks to address and reduce fragmentation in the IoT product manufacturing and development sectors. It supports the creation of system-on-chips (SoCs) that incorporate a PSA Root of Trust (PSA-RoT), a security component accessible to software platforms and original equipment manufacturers (OEMs).