Torque is applied to the central stalk atoms at the F 1. -F. o interface to. constrain their rotation to constant angular velocity Ï = 24 deg/ns. 0.0 to 5.0 ns (0 to 120 deg) of torqued F. 1. rotation, Ï = 24 deg/ns.
A masking agent is a reagent used in chemical analysis which reacts with chemical species that may interfere in the analysis. In sports a masking agent is used to hide or prevent detection of a banned substance or illegal drug like anabolic steroids or stimulants.
A procedure mask is used for performing patient procedures, or when patients are in isolation to protect them from potential contaminants. They are used for 'respiratory etiquette' to prevent people from spreading germs via talking, coughing, or sneezing.