Network communication control methods and systems are provided. In particular, isolated nucleic acid molecules are provided encoding the human TR17. The cleaner concentrates include one or more alkalinity sources, one or more chelants, one or more surfactants, and as a remainder, water. The image control block provides brightness control of an image sensor in the image control subsystem to optimize the brightness of the desired area of interest in the image relative to the background. Thus, the tester verifies, over the separate link, the physical configuration of VLUNs and data written to the VLUNs by the tester on storage devices.