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  2. Saturation (traffic) - Wikipedia

    en.wikipedia.org/wiki/Saturation_(traffic)

    The saturation flow is the rate at which a continuous flow of vehicles can pass through a constant green signal, typically expressed in vehicles per hour or PCUs per hour. [1] A formula to calculate saturation flows based on lane geometry is given in Transport and Road Research Laboratory RR67. [2]

  3. Goff–Gratch equation - Wikipedia

    en.wikipedia.org/wiki/Goff–Gratch_equation

    The saturation with respect to water cannot be measured much below –50 °C, so manufacturers should use one of the following expressions for calculating saturation vapour pressure relative to water at the lowest temperatures – Wexler (1976, 1977), [1] [2] reported by Flatau et al. (1992)., [3] Hyland and Wexler (1983) or Sonntag (1994 ...

  4. Saturation arithmetic - Wikipedia

    en.wikipedia.org/wiki/Saturation_arithmetic

    Saturation arithmetic is a version of arithmetic in which all operations, such as addition and multiplication, are limited to a fixed range between a minimum and maximum value. If the result of an operation is greater than the maximum, it is set (" clamped ") to the maximum; if it is below the minimum, it is clamped to the minimum.

  5. Streeter–Phelps equation - Wikipedia

    en.wikipedia.org/wiki/Streeter–Phelps_equation

    Both the deoxygenation rate, and reaeration rate, can be temperature corrected, following the general formula. [2] = where is the rate at 20 degrees Celsius. θ is a constant, which differs for the two rates.

  6. Lifting condensation level - Wikipedia

    en.wikipedia.org/wiki/Lifting_condensation_level

    The LCL can be either computed or determined graphically using standard thermodynamic diagrams such as the skew-T log-P diagram or the tephigram.Nearly all of these formulations make use of the relationship between the LCL and the dew point, which is the temperature to which an air parcel needs to be cooled isobarically until its RH just reaches 100%.

  7. Sigmoid function - Wikipedia

    en.wikipedia.org/wiki/Sigmoid_function

    Inverted logistic S-curve to model the relation between wheat yield and soil salinity. Many natural processes, such as those of complex system learning curves, exhibit a progression from small beginnings that accelerates and approaches a climax over time.

  8. Tetens equation - Wikipedia

    en.wikipedia.org/wiki/Tetens_equation

    where temperature T is in degrees Celsius (°C) and saturation vapor pressure P is in kilopascals (kPa). According to Monteith and Unsworth, "Values of saturation vapour pressure from Tetens' formula are within 1 Pa of exact values up to 35 °C." Murray (1967) provides Tetens' equation for temperatures below 0 °C: [3]

  9. Saturable absorption - Wikipedia

    en.wikipedia.org/wiki/Saturable_absorption

    In the intermediate case (neither continuous, nor short pulse operation), the rate equations for excitation and relaxation in the optical medium must be considered together. Saturation fluence is one of the factors that determine threshold in the gain media and limits the storage of energy in a pulsed disk laser. [2]