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7 results for “sustain”

Formulae (7)

P_r = D \times V

Power needed to sustain level flight equals drag times true airspeed.

CO_2 = E \times f

Emissions from energy use and an emission factor.

WUI = \frac{V_{water}}{Output}

Water consumed per unit of product or service.

EPR = \frac{E_{generated}}{E_{invested}}

Energy produced over a lifetime divided by energy to build it.

PWR = \frac{P}{m}

Cyclist's sustainable power divided by body mass — key to climbing.

H = 1 - \frac{1}{R_0}

Minimum fraction of the population that must be immune to prevent sustained spread.

MD = C_{ss} \times CL \times \tau

Recurring dose needed to sustain the steady-state concentration.