A method for producing an orthodontic bracket is comprised of sintering a molded body of highly-pure alumina fine powder at a temperature of 1,200\xb0 C. When the imaging device enters a power saving mode, a remote wakeup web service remains awake and initiates wakeup of the imaging device in response to a valid wakeup request received from a remote wakeup web service client module. The principal industrial application of the invention is the control of recombinant protein production in cultured cells including in bioreactors. A shape memory alloy device is positioned within the linear actuator housing and coupled to the support shaft for moving the support shaft from the extended position to the retracted position when the shape memory alloy device reaches a predetermined temperature.