: any of a breed of very small roundheaded dogs that occur in short-coated and long-coated varieties.See Chihuahua defined for English-language learners. See Chihuahua defined for kids. ADVERTISEMENT. any of a breed of very small roundheaded dogs that occur in short-coated and long-coated varieties. See Chihuahua defined for English-language learners. See Chihuahua defined for kids. ADVERTISEMENT.
3) Critically damped: [math]x(t) = (A + Bt)e^{- \gamma t}[/math] This is the optimally damped case, where the damping coefficient is just large enough to completely quell the oscillations, so the oscillator returns to zero in the least amount of time possible. 4) Overdamped: [math]x(t) = Ae^{- \gamma_{1}t} + Be^{- \gamma_{2}t}[/math]
A vent damper is an automatic devise that shuts off the flue pipe when the burner is not running. A vent damper has no effect on the running efficiency of the appliance. It only saves off-cycle losses of heated air. Therefore, if the appliance is in an unheated space, there is no benefit to a vent damper. A vent damper can achieve up to 10% annual fuel savings.