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  2. Verification and validation - Wikipedia

    en.wikipedia.org/wiki/Verification_and_validation

    Verification is intended to check that a product, service, or system meets a set of design specifications. [6] [7] In the development phase, verification procedures involve performing special tests to model or simulate a portion, or the entirety, of a product, service, or system, then performing a review or analysis of the modeling results.

  3. Instrumental variables estimation - Wikipedia

    en.wikipedia.org/wiki/Instrumental_variables...

    This works because IV solves for the unique parameter that satisfies =, and therefore hones in on the true underlying parameter as the sample size grows. Now an extension: suppose that there are more instruments than there are covariates in the equation of interest, so that Z is a T × M matrix with M > K.

  4. Check sheet - Wikipedia

    en.wikipedia.org/wiki/Check_sheet

    A check sheet is a form (document) used to collect data in real time at the location where the data is generated. The data it captures can be quantitative or qualitative. When the information is quantitative, the check sheet is sometimes called a tally sheet. [1] The check sheet is one of the so-called Seven Basic Tools of Quality Control. [2]

  5. Production part approval process - Wikipedia

    en.wikipedia.org/wiki/Production_part_approval...

    Sample Production Parts A sample from the same lot of initial production run. The PPAP package usually shows a picture of the sample and where it is kept (customer or supplier). Master Sample A sample signed off by customer and supplier, that usually is used to train operators on subjective inspections such as visual or for noise. Checking Aids

  6. WHO Surgical Safety Checklist - Wikipedia

    en.wikipedia.org/wiki/WHO_Surgical_Safety_Checklist

    The World Health Organization (WHO) published the WHO Surgical Safety Checklist in 2008 in order to increase the safety of patients undergoing surgery. [1] The checklist serves to remind the surgical team of important items to be performed before and after the surgical procedure in order to reduce adverse events such as surgical site infections or retained instruments. [1]

  7. Photovoltaic module analysis techniques - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_module...

    To measure the IV curve of a single module, portable devices, so called IV curve tracers, are available. [4] Modern inverter or maximum power point tracker (MPPT) are able to measure the IV curve of the connected string (series circuit of multiple PV modules). [5] In a PV module under operation, the extreme conditions are open-circuit and short ...

  8. Dick Van Dyke, 99, proves he doesn't skip leg day in new video

    www.aol.com/dick-van-dyke-99-proves-032538917.html

    Dick Van Dyke still makes time for leg day. The actor celebrated his 99th birthday on Dec. 13, then appears to have hit the gym a few days later, according to a video shared on his Instagram page ...

  9. Central venous catheter - Wikipedia

    en.wikipedia.org/wiki/Central_venous_catheter

    Contrary to the French scale, the larger the gauge number, the smaller the catheter diameter. Although these catheters possess one 16 gauge port, the flow is considerably slower than one would expect through a 16 gauge peripheral IV due to the longer length of the central venous catheter (see section on "catheter flow" above).