Over the next 150 years Londinium developed into a centre for trade and business, and also the administrative centre for the Roman-occupied areas in the rest of England. The new city included buildings like a basilica, an ampitheatre, temples to gods such as Mithas (a Persian deity), a forum and the Governorâs Palace.
AOV is simply an abreviation for Automatic Opening Vent. An AOV system is a control system designed to vent air or smoke for use in natural & smoke ventilation.
An acousto-optic modulator (AOM), also called a Bragg cell, uses the acousto-optic effect to diffract and shift the frequency of light using sound waves (usually at radio-frequency). They are used in lasers for Q-switching, telecommunications for signal modulation, and in spectroscopy for frequency control.