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  2. Twin-lead - Wikipedia

    en.wikipedia.org/wiki/Twin-lead

    It can have significantly lower signal loss than miniature flexible coaxial cable, the main alternative type of feedline at these frequencies; for example, type RG-58 coaxial cable loses 6.6 dB per 100 metres (330 ft) at 30 MHz, while 300 Ω twin-lead loses only 0.55 dB.

  3. Friction loss - Wikipedia

    en.wikipedia.org/wiki/Friction_loss

    The following table gives flow rate Q such that friction loss per unit length Δp / L (SI kg / m 2 / s 2) is 0.082, 0.245, and 0.816, respectively, for a variety of nominal duct sizes. The three values chosen for friction loss correspond to, in US units inch water column per 100 feet, 0.01, .03, and 0.1.

  4. Coaxial cable - Wikipedia

    en.wikipedia.org/wiki/Coaxial_cable

    Coaxial cable, or coax (pronounced / ˈ k oʊ. æ k s /), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.

  5. Row (weight-lifting) - Wikipedia

    en.wikipedia.org/wiki/Row_(weight-lifting)

    In strength training, rowing (or a row, usually preceded by a qualifying adjective — for instance a cable seated row, barbell upright row, dumbbell bent-over row, T-bar rows, et cetera) is an exercise where the purpose is to strengthen the muscles that draw the rower's arms toward the body (latissimus dorsi) as well as those that retract the scapulae (trapezius and rhomboids) and those that ...

  6. Insertion loss - Wikipedia

    en.wikipedia.org/wiki/Insertion_loss

    Insertion loss is a figure of merit for an electronic filter and this data is generally specified with a filter. Insertion loss is defined as a ratio of the signal level in a test configuration without the filter installed ( | V 1 | {\displaystyle \left\vert V_{1}\right\vert } ) to the signal level with the filter installed ( | V 2 ...

  7. Royal Canadian Air Force Exercise Plans - Wikipedia

    en.wikipedia.org/wiki/Royal_Canadian_Air_Force...

    The 5BX Plan For Physical Fitness is composed of six charts arranged in increasing order of difficulty. Each chart is composed of five exercises that are performed within eleven minutes. The first four exercises are calisthenics and the last is an aerobic exercise. As the individual progresses within the system, the number of each type of ...

  8. Moody chart - Wikipedia

    en.wikipedia.org/wiki/Moody_chart

    In engineering, the Moody chart or Moody diagram (also Stanton diagram) is a graph in non-dimensional form that relates the Darcy–Weisbach friction factor f D, Reynolds number Re, and surface roughness for fully developed flow in a circular pipe. It can be used to predict pressure drop or flow rate down such a pipe.

  9. RG-58 - Wikipedia

    en.wikipedia.org/wiki/RG-58

    RG-58/U is a type of coaxial cable often used for low-power signal and RF connections. The cable has a characteristic impedance of either 50 or 52 Ω. "RG" was originally a unit indicator for bulk RF cable in the U.S. military's Joint Electronics Type Designation System.