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  2. Shewhart individuals control chart - Wikipedia

    en.wikipedia.org/wiki/Shewhart_individuals...

    In statistical quality control, the individual/moving-range chart is a type of control chart used to monitor variables data from a business or industrial process for which it is impractical to use rational subgroups. [1] The chart is necessary in the following situations: [2]: 231

  3. Ebara Corporation - Wikipedia

    en.wikipedia.org/wiki/Ebara_Corporation

    Ebara Corporation is a publicly traded manufacturing company based in Tokyo, Japan which makes environmental and industrial machinery such as pumps and turbines. It is the owner of the Elliott Company in the United States and Sumoto S.r.l. in Italy. [5] Ebara also operates through its "WaterKiosk" partnership to supply clean drinking water in ...

  4. Elliott Company - Wikipedia

    en.wikipedia.org/wiki/Elliott_Company

    Elliott Company designs, manufactures, installs, and services turbo-machinery for prime movers and rotating machinery. Headquartered in Jeannette, Pennsylvania, Elliott Company is a wholly owned subsidiary of the Japan-based Ebara Corporation, and is a unit of Elliott Group, Ebara Corporation's worldwide turbomachinery business.

  5. EWMA chart - Wikipedia

    en.wikipedia.org/wiki/EWMA_chart

    The EWMA chart is sensitive to small shifts in the process mean, but does not match the ability of Shewhart-style charts (namely the ¯ and R and ¯ and s charts) to detect larger shifts. [ 2 ] : 412 One author recommends superimposing the EWMA chart on top of a suitable Shewhart-style chart with widened control limits in order to detect both ...

  6. Video Graphics Array - Wikipedia

    en.wikipedia.org/wiki/Video_Graphics_Array

    VGA section on the motherboard in IBM PS/55. The color palette random access memory (RAM) and its corresponding digital-to-analog converter (DAC) were integrated into one chip (the RAMDAC) and the cathode-ray tube controller was integrated into a main VGA chip, which eliminated several other chips in previous graphics adapters, so VGA only additionally required external video RAM and timing ...

  7. Smith chart - Wikipedia

    en.wikipedia.org/wiki/Smith_chart

    Using the Smith chart, the normalised impedance may be obtained with appreciable accuracy by plotting the point representing the reflection coefficient treating the Smith chart as a polar diagram and then reading its value directly using the characteristic Smith chart scaling. This technique is a graphical alternative to substituting the values ...

  8. Variable-gain amplifier - Wikipedia

    en.wikipedia.org/wiki/Variable-gain_amplifier

    At its most basic form, a toggle switch strapped across the feedback resistor can provide two discrete gain settings. While this is not a computer-controlled function, it describes the core function. With eight switches and eight resistors in the feedback loop, each switch can enable a particular resistor to control the amplifier's feedback.

  9. VGA-Copy - Wikipedia

    en.wikipedia.org/wiki/VGA-Copy

    VGA-Copy was popular because it could often read floppy disks with errors. It does so by automatically doing multiple read retries on errors. Furthermore, VGA-Copy can read floppy images and saves them with the extension .vcp as a 1:1 raw copy of the floppy disk without special headers and formats.