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.
It's actually spelled and pronounced Damper, there is no N in the word. Hydraulic fluid passing between controlled chambers dampens the forces being exerted, hence the word Damper is used to describe a device which dampens or slows down unwanted oscillations or movements.