Abstract: A low cost system and method for retrofitting an existing control device to communicate wirelessly with one or more water-flow devices is provided. For example, an existing wired irrigation system may be adapted to allow wireless communication between a commercially available irrigation controller and commercially available water-flow devices, such as sprinkler valves. A wireless irrigation adapter receives control signals from an existing irrigation controller and transmits a wireless representation of the control signals. Water-flow devices may be coupled to one or more wireless receivers that receive the wireless representation of the control signals and operate the water-flow device(s) accordingly. The wireless irrigation receiver(s) listen(s) for the wireless control signals occasionally, thus reducing power consumption by the wireless receiver(s). This system and method may also wirelessly adapt control devices to irrigation that may never have been intended for that purpose when they were fabricated.

Abstract: A low cost system and method for retrofitting an existing control device to communicate wirelessly with one or more water-flow devices is provided. For example, an existing wired irrigation system may be adapted to allow wireless communication between a commercially available irrigation controller and commercially available water-flow devices, such as sprinkler valves. A wireless irrigation adapter receives control signals from an existing irrigation controller and transmits a wireless representation of the control signals. Water-flow devices may be coupled to one or more wireless receivers that receive the wireless representation of the control signals and operate the water-flow device(s) accordingly. The wireless irrigation receiver(s) listen(s) for the wireless control signals occasionally, thus reducing power consumption by the wireless receiver(s). This system and method may also wirelessly adapt control devices to irrigation that may never have been intended for that purpose when they were fabricated.

Abstract: Riboflavin is recovered from fermentation broth by diluting the broth with a predetermined quantity of water, centrifuging the diluted broth to form a sludge, resuspending the sludge with a predetermined quantity of water, and centrifuging the resuspended sludge to yield a product usuable directly as an animal feed supplement or suitable for further purification for pharmaceutical use. Optionally the broth or resuspended sludge is treated with an enzyme before centrifugation.