White (Beta) tin, stable above 13.2Â°C, is the common metallic form of the element. Alpha-tin is a semiconductor. Typical Applications: Tinplate foil, collapsible tubes, block tin products, pewter, alloying, coatings, powder applications (sintered bronze and iron parts).
Audit trail. Audit trail is a set of records on a particular lock or tag. You can view the logs of unlocking, including tag entries and master key entries on a particular lock, as well as logs of incidents such as; alarms like Door Left Open (DLO), tamper, Intruder Alarms and Low Battery Warnings.
A lock is a variable associated with a data item that describes the status of the item with respect to possible operations that can be applied to it. Generally, there is one lock for each data item in the database.Locks are used as a means of synchronizing the access by concurrent transactions to the database item. Types of Locks. Several types of locks are used in concurrency control.inary Locks. A binary lock can have two states or values: locked and unlocked. A distinct lock is associated with each database item A. If the value of the lock on A is 1, item A cannot be accessed by a database operation that requests the item.