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  2. Hydraulic head - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_head

    Hydraulic head or piezometric head is a specific measurement of liquid pressure above a vertical datum. [ 1 ] [ 2 ] It is usually measured as a liquid surface elevation, expressed in units of length, at the entrance (or bottom) of a piezometer .

  3. Bernoulli's principle - Wikipedia

    en.wikipedia.org/wiki/Bernoulli's_principle

    h = z + ⁠ p / ρg ⁠ is the piezometric head or hydraulic head (the sum of the elevation z and the pressure head) [11] [12] and; p 0 = p + q is the stagnation pressure (the sum of the static pressure p and dynamic pressure q). [13] The constant in the Bernoulli equation can be normalized.

  4. Drawdown (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Drawdown_(hydrology)

    Hydraulic head (or piezometric head) is a specific measurement of the potential of water above a vertical datum. [7] It is the height of the free surface of water above a given point beneath the surface. [4] Pumping level is the level of water in the well during pumping. [8] Specific capacity is the well yield per unit of drawdown. [8]

  5. Pore water pressure - Wikipedia

    en.wikipedia.org/wiki/Pore_water_pressure

    The standard method for measuring pore water pressure below the water table employs a piezometer, which measures the height to which a column of the liquid rises against gravity; i.e., the static pressure (or piezometric head) of groundwater at a specific depth. [6] Piezometers often employ electronic pressure transducers to provide data.

  6. 3 Cracker Barrel Employees Fired After Refusing to Seat Group ...

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    Three employees at a Maryland Cracker Barrel have reportedly been dismissed after staff refused to seat a group of students with special needs on Dec. 3 Superintendent of Charles County Public ...

  7. 20 Contest-Winning Desserts That Will Wow a Crowd - AOL

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    Science & Tech. Shopping. Sports. Weather. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. ... 15 Best Denim Jacket Outfit Ideas to Pull from Your Closet.

  8. Pressure head - Wikipedia

    en.wikipedia.org/wiki/Pressure_head

    Pressure head is a component of hydraulic head, in which it is combined with elevation head. When considering dynamic (flowing) systems, there is a third term needed: velocity head. Thus, the three terms of velocity head, elevation head, and pressure head appear in the head equation derived from the Bernoulli equation for incompressible fluids:

  9. 5 Things to Avoid When You Have Alopecia Areata - AOL

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    2. Excessive Stress. Stress is a natural, normal part of the human experience, and your body knows how to handle it. When you’re under stress, your body releases stress hormones that activate ...