Abstract: Method and system for non-destructive evaluation for a conducting structure by measuring the electrical impulse response thereof including applying a PRBS test input signal to the conducting structure, detecting an output signal from the conducting structure and processing the data to assess the condition of the conducting structure via changes in the electrical impulse response and to locate any defects along the conducting structure.

Abstract: A method is disclosed for managing the sale of a plurality of items from a plurality of corresponding suppliers to at least one buyer, wherein the one buyer determines a description of the item to be purchased. The method enables each of the plurality of suppliers to store at least one catalogue of its items in a database and responding to a search request of the one buyer to identify any item in the catalogues stored in the database with a description that matches the item description of the buyer.

Abstract: Method and system for non-destructive evaluation for a conducting structure by measuring the electrical impulse response thereof including applying a PRBS test input signal to the conducting structure, detecting an output signal from the conducting structure and processing the data to assess the condition of the conducting structure via changes in the electrical impulse response and to locate any defects along the conducting structure.