Disk image table holds the information about the disk image considered for the forensic investigation.

The image table of Orthopaedics Ward has been out of order for last one year due to which patients with bone issues could not be treated at night because of non-service of Ultra Sound machine, the y added.

Networking and security topics include a privacy-preserving practical convex hulls protocol, an energy efficient weight-clustering algorithm in wireless sensor networks, tracking and repairing damaged databases using before image table, and an access graph based risk assessment model for network information system.

Liverpool's low ranking in the assets table and its relatively high ranking in the image table means those that are promoting it are doing a good job at making the most of the material at their disposal, says Saffron.

The survey highlights upbeat trends in perceptions about the north-west of England, with Liverpool, Chester, Manchester and the Lake District headlining the image table.