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  2. Process capability index - Wikipedia

    en.wikipedia.org/wiki/Process_capability_index

    Process fallout quantifies how many defects a process produces and is measured by DPMO or PPM. Process yield is the complement of process fallout and is approximately equal to the area under the probability density function Φ ( σ ) = 1 2 π ∫ − σ σ e − t 2 / 2 d t {\displaystyle \Phi (\sigma )={\frac {1}{\sqrt {2\pi }}}\int _{-\sigma ...

  3. Process capability - Wikipedia

    en.wikipedia.org/wiki/Process_capability

    The process capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., C pk or C pm) or as a process performance index (e.g., P pk or P pm).

  4. Tris(cyclooctatetraene)triiron - Wikipedia

    en.wikipedia.org/wiki/Tris(cyclooctatetraene)triiron

    Tris(cyclooctatetraene)triiron or Fe 3 (COT) 3, also referred to as the Lavallo-Grubbs compound (after its discoverers [1]) is an organoiron compound with the formula Fe 3 (C 8 H 8) 3.

  5. trans-1,3,3,3-Tetrafluoropropene - Wikipedia

    en.wikipedia.org/wiki/Trans-1,3,3,3-tetrafluoro...

    trans-1,3,3,3-Tetrafluoropropene (HFO-1234ze(E), R-1234ze(E)) is a hydrofluoroolefin.It was developed as a "fourth generation" refrigerant to replace fluids such as R-134a, as a blowing agent for foam and aerosol applications, and in air horns and gas dusters. [3]

  6. p-Cresol - Wikipedia

    en.wikipedia.org/wiki/P-cresol

    p-Cresol is a major component in pig odor. [11] Temporal glands secretion examination showed the presence of phenol and p-cresol during musth in male elephants. [12] [13] It is one of the very few compounds to attract the orchid bee Euglossa cyanura and has been used to capture and study the species.

  7. French catheter scale - Wikipedia

    en.wikipedia.org/wiki/French_catheter_scale

    The French scale, also known as the French gauge or Charrière system, is a widely used measurement system for the size of catheters.It is commonly abbreviated as Fr but may also be abbreviated as Fg, FR or F, and less frequently as CH or Ch (referencing its inventor, Charrière).

  8. Molecular graph - Wikipedia

    en.wikipedia.org/wiki/Molecular_graph

    Molecular structure of caffeine. Methyl groups are implied, but not visualized.. In chemical graph theory and in mathematical chemistry, a molecular graph or chemical graph is a representation of the structural formula of a chemical compound in terms of graph theory.

  9. Technetium-99 - Wikipedia

    en.wikipedia.org/wiki/Technetium-99

    Technetium-99 (99 Tc) is an isotope of technetium which decays with a half-life of 211,000 years to stable ruthenium-99, emitting beta particles, but no gamma rays.It is the most significant long-lived fission product of uranium fission, producing the largest fraction of the total long-lived radiation emissions of nuclear waste.