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  2. Broselow tape - Wikipedia

    en.wikipedia.org/wiki/Broselow_tape

    The Broselow Tape is designed for children up to approximately 12 years of age who have a maximum weight of roughly 36 kg (79 lb). The Broselow Tape is recognized in most medical textbooks and publications as a standard for the emergency treatment of children.

  3. Vacuum - Wikipedia

    en.wikipedia.org/wiki/Vacuum

    Vacuum pump and bell jar for vacuum experiments, used in science education during the early 20th century, on display in the Schulhistorische Sammlung ('School Historical Museum'), Bremerhaven, Germany. A vacuum (pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant ...

  4. McLeod gauge - Wikipedia

    en.wikipedia.org/wiki/McLeod_gauge

    McLeod gauges were once commonly found attached to equipment that operates under vacuum, such as a lyophilizer. Today, however, these gauges have largely been replaced by electronic vacuum gauges. The design of a McLeod gauge is somewhat similar to that of a mercury-column manometer. Typically it is filled with mercury. If used incorrectly ...

  5. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    A special form of the Pirani gauge is the pulsed Pirani vacuum gauge where the sensor wire is not operated at a constant temperature, but is cyclically heated up to a certain temperature threshold by an increasing voltage ramp. When the threshold is reached, the heating voltage is switched off and the sensor cools down again.

  6. Vacuum chamber - Wikipedia

    en.wikipedia.org/wiki/Vacuum_chamber

    "Vacuum is the process of using vacuum to remove gases from compounds which become entrapped in the mixture when mixing the components." [2] To assure a bubble-free mold when mixing resin and silicone rubbers and slower-setting harder resins, a vacuum chamber is required. A small vacuum chamber is needed for de-airing (eliminating air bubbles ...

  7. Ultra-high vacuum - Wikipedia

    en.wikipedia.org/wiki/Ultra-high_vacuum

    Ultra-high vacuum (often spelled ultrahigh in American English, UHV) is the vacuum regime characterised by pressures lower than about 1 × 10 −6 pascals (1.0 × 10 −8 mbar; 7.5 × 10 −9 Torr). UHV conditions are created by pumping the gas out of a UHV chamber.

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    mail.aol.com

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  9. Vacuum level - Wikipedia

    en.wikipedia.org/wiki/Vacuum_level

    The phrase "vacuum level" also occurs often in texts on squeezed light where it refers to an unsqueezed measurement. For example, "Thus, when the noise level in the spectrum analyzer shows broadband squeezing below the vacuum level, it also indicates the presence of entanglement between upper and lower sidebands."