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  2. Gouy–Stodola theorem - Wikipedia

    en.wikipedia.org/wiki/Gouy–Stodola_theorem

    The Gouy-Stodola theorem is often applied to refrigeration cycles. These are thermodynamic cycles or mechanical systems where external work can be used to move heat from low temperature sources to high temperature sinks, or vice versa. Specifically, the theorem is useful in analyzing vapor compression and vapor absorption refrigeration cycles.

  3. Poisson–Boltzmann equation - Wikipedia

    en.wikipedia.org/wiki/Poisson–Boltzmann_equation

    The Poisson–Boltzmann equation describes a model proposed independently by Louis Georges Gouy and David Leonard Chapman in 1910 and 1913, respectively. [3] In the Gouy-Chapman model, a charged solid comes into contact with an ionic solution, creating a layer of surface charges and counter-ions or double layer. [4]

  4. Symbolab - Wikipedia

    en.wikipedia.org/wiki/Symbolab

    Symbolab is an answer engine [1] that provides step-by-step solutions to mathematical problems in a range of subjects. [2] It was originally developed by Israeli start-up company EqsQuest Ltd., under whom it was released for public use in 2011. In 2020, the company was acquired by American educational technology website Course Hero. [3] [4]

  5. Gouy balance - Wikipedia

    en.wikipedia.org/wiki/Gouy_balance

    Schematic diagram of Gouy balance. The Gouy balance, invented by the French physicist Louis Georges Gouy, is a device for measuring the magnetic susceptibility of a sample. . The Gouy balance operates on magnetic torque, by placing the sample on a horizontal arm or beam suspended by a thin fiber, and placing either a permanent magnet or electromagnet on the other end of the arm, there is a ...

  6. Exergy - Wikipedia

    en.wikipedia.org/wiki/Exergy

    The key point is that energy has quality or measures of usefulness, and this energy quality (or exergy content) is what is consumed or destroyed. This occurs because everything, all real processes, produce entropy and the destruction of exergy or the rate of "irreversibility" is proportional to this entropy production (Gouy–Stodola theorem ...

  7. Gouy phase shift - Wikipedia

    en.wikipedia.org/wiki/Gouy_phase_shift

    The Gouy phase results in an increase in the apparent wavelength near the waist (z ≈ 0).Thus the phase velocity in that region formally exceeds the speed of light.That paradoxical behavior must be understood as a near-field phenomenon where the departure from the phase velocity of light (as would apply exactly to a plane wave) is small except in the case of a beam with large numerical ...

  8. Louis Georges Gouy - Wikipedia

    en.wikipedia.org/wiki/Louis_Georges_Gouy

    Louis Georges Gouy. Louis Georges Gouy (February 19, 1854 – January 27, 1926) [1] was a French physicist.He is the namesake of the Gouy balance, the Gouy–Chapman electric double layer model (which is a relatively successful albeit limited model that describes the electrical double-layer which finds applications in vast areas of studies from physical chemistry to biophysics) and the Gouy phase.

  9. Dehn surgery - Wikipedia

    en.wikipedia.org/wiki/Dehn_surgery

    This result, the Lickorish–Wallace theorem, was first proven by Andrew H. Wallace in 1960 and independently by W. B. R. Lickorish in a stronger form in 1962. Via the now well-known relation between genuine surgery and cobordism , this result is equivalent to the theorem that the oriented cobordism group of 3-manifolds is trivial, a theorem ...