The present invention relates to a catalytic process for the destruction of PFC’s and HFC’s using a catalyst which comprises aluminum oxide that has preferably been stabilized through the addition of a stabilizing agent. The display control unit further causes a command icon identifying a command executable on an operation target object to be displayed in a second display area, and causes a parameter icon identifying a parameter associated with the selected command to be displayed in a third display area. A midprice order may remain active until it is traded with a contra midprice order or until a parameter associated with the order is breached, thereby resulting in cancellation of the midprice order. The ultrasound assembly comprises an ultrasound radiating member mounted on an elongate support structure. The multiphase fluid is preferably mixed prior to analysis.