In a process for the desalination of water, an impure, salt-containing water feed is passed through one or more filter media to remove from the feed impurities having a particle size greater than 50 \u03bcm and produce a first filtered water stream. The supervising unit is electrically connected to terminal posts of the battery in order to measure the battery voltage and also measures the battery current. Several forms of head and neck or torso immobilizers accommodate specific objectives and several forms of reference structures accomplish repositioning and patient position orientation. The top of the shutter cover and the attachment member can connect to each other. An Si-based oxide scale layer with an Si content of at least 50% may be provided between the Cr-based oxide scale layer and the Cr-depleted zone. The tunneling agent node serves as the data packet redirection node for a mobile as it moves from one location to another and may be located outside of a firewall used to protect the DHA.