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  2. Skew-T log-P diagram - Wikipedia

    en.wikipedia.org/wiki/Skew-T_log-P_diagram

    This made the diagram useful for analysis techniques that were then being adopted by the United States Air Force. Such a diagram has pressure plotted on the vertical axis, with a logarithmic scale (thus the "log-P" part of the name), and the temperature plotted skewed, with isothermal lines at 45° to the plot (thus the "skew-T" part of the ...

  3. Thermodynamic diagrams - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_diagrams

    Skew-T log-P diagram; Tephigram; Emagram; Stüve diagram; All four diagrams are derived from the physical P–alpha diagram which combines pressure (P) and specific volume (alpha) as its basic coordinates. The P–alpha diagram shows a strong deformation of the grid for atmospheric conditions and is therefore not useful in atmospheric sciences ...

  4. Plate theory - Wikipedia

    en.wikipedia.org/wiki/Plate_theory

    The typical thickness to width ratio of a plate structure is less than 0.1. [citation needed] A plate theory takes advantage of this disparity in length scale to reduce the full three-dimensional solid mechanics problem to a two-dimensional problem. The aim of plate theory is to calculate the deformation and stresses in a plate subjected to loads.

  5. Process corners - Wikipedia

    en.wikipedia.org/wiki/Process_corners

    The last two corners (FS, SF) are called "skewed" corners, and are cause for concern. This is because one type of FET will switch much faster than the other, and this form of imbalanced switching can cause one edge of the output to have much less slew than the other edge. Latching devices may then record incorrect values in the logic chain.

  6. Surface plate - Wikipedia

    en.wikipedia.org/wiki/Surface_plate

    A cast-iron surface plate, the handles aid in lifting the plate and using it for lapping operations Prior to World War II, almost all surface plates were made from ribbed cast iron with the ribbing used to increase stiffness without incurring the weight of solid construction.

  7. Plate (structure) - Wikipedia

    en.wikipedia.org/wiki/Plate_(structure)

    A plate is a structural element which is characterized by a three-dimensional solid whose thickness is very small when compared with other dimensions. [ 1 ] The effects of the loads that are expected to be applied on it only generate stresses whose resultants are, in practical terms, exclusively normal to the element's thickness.

  8. Skew (antenna) - Wikipedia

    en.wikipedia.org/wiki/Skew_(antenna)

    Skew is a term used in antenna engineering. It is a technique to improve the horizontal radiation pattern of a high power transmitter station . In a high power VHF or UHF station, usually the antenna system is constructed to broadcast to four directions each separated 90° from each other.

  9. Shear mapping - Wikipedia

    en.wikipedia.org/wiki/Shear_mapping

    Horizontal shear of a square into parallelograms with factors ⁡ and ⁡ =. In the plane =, a horizontal shear (or shear parallel to the x-axis) is a function that takes a generic point with coordinates (,) to the point (+,); where m is a fixed parameter, called the shear factor.