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  2. Useful conversions and formulas for air dispersion modeling

    en.wikipedia.org/wiki/Useful_conversions_and...

    Here are the conversion factors for those various expressions of wind speed: 1 m/s = 2.237 statute mile/h = 1.944 knots 1 knot = 1.151 statute mile/h = 0.514 m/s 1 statute mile/h = 0.869 knots = 0.447 m/s. Note: 1 statute mile = 5,280 feet = 1,609 meters

  3. Mean glandular dose - Wikipedia

    en.wikipedia.org/wiki/Mean_glandular_dose

    MGD can be calculated from a measured incident air kerma at the top of the breast, , as follows: [4] D = K g c s {\displaystyle D=Kgcs} g {\displaystyle g} converts from incident air kerma to MGD, with a glandularity of 50%, based on breast thickness and HVL .

  4. Air pollutant concentrations - Wikipedia

    en.wikipedia.org/wiki/Air_pollutant_concentrations

    This article presents methods for converting concentrations from ppmv to mg/m 3 (and vice versa) and for correcting the concentrations to the required reference conditions. All of the concentrations and concentration corrections in this article apply only to air and other gases. They are not applicable for liquids.

  5. Million standard cubic feet per day - Wikipedia

    en.wikipedia.org/wiki/Million_standard_cubic...

    Million standard cubic feet per day is a unit of measurement for gases that is predominantly used in the United States.It is frequently abbreviated MMSCFD. MMSCFD is commonly used as a measure of natural gas, liquefied petroleum gas, compressed natural gas and other gases that are extracted, processed or transported in large quantities.

  6. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    The area required to calculate the volumetric flow rate is real or imaginary, flat or curved, either as a cross-sectional area or a surface. The vector area is a combination of the magnitude of the area through which the volume passes through, A , and a unit vector normal to the area, n ^ {\displaystyle {\hat {\mathbf {n} }}} .

  7. Discharge coefficient - Wikipedia

    en.wikipedia.org/wiki/Discharge_coefficient

    In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures.

  8. Hydrocarbon dew point - Wikipedia

    en.wikipedia.org/wiki/Hydrocarbon_dew_point

    In the United States, the hydrocarbon dew point of processed, pipelined natural gas is related to and characterized by the term GPM which is the gallons of liquefiable hydrocarbons contained in 1,000 cubic feet (28 m 3) of natural gas at a stated temperature and pressure.

  9. MGD - Wikipedia

    en.wikipedia.org/wiki/MGD

    MGD may stand for: Maharani Gayatri Devi Girls’ Public School, Jaipur, India; Miller Genuine Draft beer, Miller Brewing Company; Million gallons per day, a measurement of pumping rate; Guildford railway station, Perth, Australia, station code; Mean glandular dose, of radiation to the breast; Meibomian gland dysfunction, an eye disease