A power transmission belt with an embedded load carrier cord having a plurality of yarns and possessing a first twist corresponding to a first twist multiplier and a first twist direction, and possessing a second twist corresponding to a second twist multiplier in the opposite direction, such that the ratio of the first twist multiplier to the second twist multiplier is greater than about 1. The stream is directed downwardly in the vessel along a path that traverses the path of the rotating vanes so the vanes impact the stream. The liquid formulation ejection device includes an ejector for performing normal liquid droplet ejection for inhalation and liquid droplet preejection not for inhalation, and a discharger for removing liquid droplets ejected by the liquid droplet preejection out of an inside of the inhalation flow path. This disclosure also provides other uses of empirically-measured maximum flash memory transaction times, including via multiple memory modes and prioritized memory; for example, if a high performance mode is desired, low variation in flash memory transaction times may be tolerated, and units not satisfying these principles may be marked relatively quickly.