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  2. Reliability-centered maintenance - Wikipedia

    en.wikipedia.org/wiki/Reliability-centered...

    The term "reliability-centered maintenance" authored by Tom Matteson, Stanley Nowlan and Howard Heap of United Airlines (UAL) to describe a process used to determine the optimum maintenance requirements for aircraft [3] [disputed – discuss] (having left United Airlines to pursue a consulting career a few months before the publication of the final Nowlan-Heap report, Matteson received no ...

  3. Ring-closing metathesis - Wikipedia

    en.wikipedia.org/wiki/Ring-closing_metathesis

    Ring-closing metathesis (RCM) is a widely used variation of olefin metathesis in organic chemistry for the synthesis of various unsaturated rings via the intramolecular metathesis of two terminal alkenes, which forms the cycloalkene as the E-or Z-isomers and volatile ethylene.

  4. Rubin causal model - Wikipedia

    en.wikipedia.org/wiki/Rubin_causal_model

    Rubin defines a causal effect: Intuitively, the causal effect of one treatment, E, over another, C, for a particular unit and an interval of time from to is the difference between what would have happened at time if the unit had been exposed to E initiated at and what would have happened at if the unit had been exposed to C initiated at : 'If an hour ago I had taken two aspirins instead of ...

  5. List of foreign countries with coinage struck at the Royal ...

    en.wikipedia.org/wiki/List_of_foreign_countries...

    In 1970, Master of the Mint Gordon Ward Hunter relaunched the Foreign Circulation division. In January 1970, the RCM won a contract from Singapore to produce six million rimmed blanks in a cupronickel alloy. [3]: 148 This was the Mint's first export contract since a contract for the Dominican Republic 32 years earlier. The second contract came ...

  6. Records continuum model - Wikipedia

    en.wikipedia.org/wiki/Records_Continuum_Model

    The records continuum model. The records continuum model (RCM) is an abstract conceptual model that helps to understand and explore recordkeeping activities. It was created in the 1990s by Monash University academic Frank Upward with input from colleagues Sue McKemmish and Livia Iacovino as a response to evolving discussions about the challenges of managing digital records and archives in the ...

  7. Certification mark - Wikipedia

    en.wikipedia.org/wiki/Certification_mark

    Canadian certification label on a bag of rockwool Counterfeit electrical cords with false UL certification marks. A certification mark on a commercial product or service is a registered mark that enables its owner ("certification body") to certify that the goods or services of a particular provider (who is not the owner of the certification mark) have particular properties, e.g., regional or ...

  8. Revenue cycle management - Wikipedia

    en.wikipedia.org/wiki/Revenue_cycle_management

    Revenue cycle management (RCM) is the process used by healthcare systems in the United States and all over the world to track the revenue from patients, from their initial appointment or encounter with the healthcare system to their final payment of balance. It is a normal part of health administration. The revenue cycle can be defined as, "all ...

  9. Grubbs catalyst - Wikipedia

    en.wikipedia.org/wiki/Grubbs_catalyst

    Grubbs catalysts are a series of transition metal carbene complexes used as catalysts for olefin metathesis.They are named after Robert H. Grubbs, the chemist who supervised their synthesis.