weight ratio
31Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… …
32Human sex ratio — In anthropology and demography, the human sex ratio is the sex ratio for Homo sapiens (i.e. the ratio of males to females in a population). Like most sexual species, the sex ratio is approximately 1:1. In humans the secondary sex ratio (i.e. at… …
33equivalent weight — n EQUIVALENT (1) * * * the amount of a substance that combines with or displaces 8.0 g of oxygen (or 1.008 g of hydrogen), usually expressed in grams; for acid base reactions, one equivalent donates or receives a mole of protons, and the… …
34Overall pressure ratio — In aeronautical engineering, the term overall pressure ratio is defined as the ratio of the stagnation pressure as measured at the front and rear of the compressor of a gas turbine engine. Generally speaking, a higher overall pressure ratio… …
35Strip or stripping ratio — The amount of overburden that must be removed to gain access to a unit amount of coal. A stripping ratio may be expressed as (1) thickness of overburden to thickness of coal, (2) volume of overburden to volume coal, (3) weight of overburden to… …
36Federal Bridge Gross Weight Formula — [ wheelbase trucks. The shorter truck is damaging the bridge because all of its weight is concentrated in a smaller area.] The Federal Bridge Gross Weight Formula is a mathematical formula used by truck drivers and United States Department of… …
37mixing ratio — As it pertains to meteorology, it is the ratio by weight of the amount of water vapor in a volume of air to the amount of dry air, expressed as grams per kilogram (parts per thousand parts by weight). Higher values of the mixing ratio imply a… …
38mass ratio — noun : the ratio between the mass of a rocket with fuel and the mass after the fuel has been used up * * * mass ratio, the ratio of the weight of a fully loaded space vehicle to its weight after its fuel is consumed and after sections no longer… …
39Combination by weight — Combination Com bi*na tion, n. [LL. combinatio. See {Combine}.] 1. The act or process of combining or uniting persons and things. [1913 Webster] Making new compounds by new combinations. Boyle. [1913 Webster] A solemn combination shall be made Of …
40Ventilation/perfusion ratio — In respiratory physiology, the ventilation/perfusion ratio (or V/Q ratio) is a measurement used to assess the efficiency and adequacy of the matching of two variables: [LoyolaMedEd|Medicine/pulmonar/physio/pf9.htm#q1] * V ventilation the air… …
