Abstract: A shoe cover for protecting a user's footwear. The shoe cover includes a body that resembles a shoe and that is configured to partially enclose a shoe therein. The shoe cover includes a toe portion, a heel portion, and an ankle opening. The ankle opening includes an elastic band therearound for securement around the user's ankle so as to protect the upper end of the shoe. The shoe cover includes a partially open sole, wherein a front portion of the sole is closed and the heel portion of the sole is open. The heel portion further includes an elastic band therearound for securement to the lower portion of the user's shoe. Additionally, a pair of mating fasteners is provided on opposing sides of the sole for further securing the shoe cover in position over the shoe.

Abstract: The disclosed embodiments generally relate to non-destructive evaluation methods. In an embodiment, a method for non-destructive evaluation of a aerospace component includes positioning a first plurality of sensors in the region of interest, positioning a second plurality of sensors in the region of interest, inducing a vibration in the region of interest using the first plurality of sensors and receiving a resonance frequency spectra using the second plurality of sensors, and comparing the received resonance frequency spectra against a reference spectra to determine the presence of an anomaly in the region of interest.

Abstract: A braided surgical suture is provided which in a first embodiment is woven in a spiral braid. The suture is braided by moving thread carriers from position to position around a circular path. As each carrier moves it moves from its present position to a succeeding position which is at least two positions removed from its present position. Such spiral braided sutures are advantageously produced without core filaments, providing benefits in strength, smoothness, pliability and cylindrical uniformity without the discontinuity of properties characteristic of conventionally braided cored sutures. In a second embodiment the suture is woven in a lattice braid, providing a plurality of distributed core passageways for individual core fibers.