Search results
Results From The WOW.Com Content Network
Feed conversion ratio (FCR) is the ratio of inputs to outputs; it is the inverse of "feed efficiency" which is the ratio of outputs to inputs. [ 2] FCR is widely used in hog and poultry production, while FE is used more commonly with cattle. [ 2] Being a ratio the FCR is dimensionless, that is, it is not affected by the units of measurement ...
Energy conversion efficiency ( η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1. [ 1][ 2][ 3]
Conversion ratio (also called "rectification ratio", and confusingly, "efficiency") η is defined as the ratio of DC output power to the input power from the AC supply. Even with ideal rectifiers, the ratio is less than 100% because some of the output power is AC power rather than DC which manifests as ripple superimposed on the DC waveform.
Relative change. In any quantitative science, the terms relative change and relative difference are used to compare two quantities while taking into account the "sizes" of the things being compared, i.e. dividing by a standard or reference or starting value. [ 1] The comparison is expressed as a ratio and is a unitless number.
In mathematics, a ratio ( / ˈreɪʃ ( i) oʊ /) shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3). Similarly, the ratio of lemons to oranges is 6:8 (or 3:4) and the ...
Therefore, the bel represents the logarithm of a ratio between two power quantities of 10:1, or the logarithm of a ratio between two root-power quantities of √ 10:1. [16] Two signals whose levels differ by one decibel have a power ratio of 10 1/10, which is approximately 1.258 93, and an amplitude (root-power quantity) ratio of 10 1/20 (1.122 ...
The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTUs) to input electrical energy (in watt-hours) at a given operating point. EER is generally calculated using a 95 °F (35 °C) outside temperature and an inside (actually return-air) temperature of 80 °F (27 °C) and 50% relative humidity.
Carrier-to-noise density ratio. In satellite communications, carrier-to-noise-density ratio ( C/N0) is the ratio of the carrier power C to the noise power density N0, expressed in dB-Hz . When considering only the receiver as a source of noise, it is called carrier-to-receiver-noise-density ratio . It determines whether a receiver can lock on ...