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.
dampner. A dampner is a hydraulic device used to reduce pulsations in a hydraulic system. This differs from a damper which is a hydraulic device used to damp vibrations in a physical system that the hydraulics are connected to.