Abstract: A method of magnetostrictive (MS) guided wave testing of a ferromagnetic structure. One or more MS transmitters, each configured as a patch of ferromagnetic material, are acoustically coupled to the structure. Each MS transmitter is magnetized to produce a bias magnetic field in the patch. One or more MS receivers are acoustically coupled to the structure in a location remote from the MS transmitter(s). An alternating current (AC) is applied to the structure, thereby producing time-varying magnetic fields and MS vibrations in the MS transmitter(s) resulting in guided waves in the structure. MS response signals are received at the MS receiver(s), indicating whether the structure has any anomalies.

Abstract: A method of magnetostrictive (MS) guided wave testing of a ferromagnetic structure. One or more MS transmitters, each configured as a patch of ferromagnetic material, are acoustically coupled to the structure. Each MS transmitter is magnetized to produce a bias magnetic field in the patch. One or more MS receivers are acoustically coupled to the structure in a location remote from the MS transmitter(s). An alternating current (AC) is applied to the structure, thereby producing time-varying magnetic fields and MS vibrations in the MS transmitter(s) resulting in guided waves in the structure. MS response signals are received at the MS receiver(s), indicating whether the structure has any anomalies.

Abstract: Systems and processes may facilitate evaluating medical data and distributing the results. In particular implementations, systems and processes may guide appraisers through the process of identifying medical articles regarding medical issues (e.g., medical reports on disease and/or treatment topics) for appraisal, and then through the process of critically appraising medical articles on the merits of their scientific evidence. The systems and processes may then take the appraisals and present them in an easy-to-digest format for an end-user. Additionally, the systems and processes may maintain an active link to the original data sources so that users can see what new developments are taking place with respect to the medical issue.