In general, the discriminant is an algebraic expression that gives. information about the roots of a polynomial. In the case of a quadratic equation the discriminant is the part of. the quadratic equation that is under the radical sign.
How to Select Dampers and Louvers. Dampers and louvers are used to control the flow of air in a process system or enclosed area. Dampers are usually motorized or manually-adjustable for flow control. Louvers are often fixed for a constant flow rate.
Damper is a shock absorber that is used in independent suspension system to absorb the vibrational energy by resisting motion via viscous friction. Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs.