title: Propagation of time-reversed Lamb waves in bovine cortical bone in vitro.
abstract: The present study aims to investigate the propagation of time-reversed Lamb waves in bovine cortical bone in vitro. The time-reversed Lamb waves were successfully launched at 200 kHz in 18 bovine tibiae through a time reversal process of Lamb waves. The group velocities of the time-reversed Lamb waves in the bovine tibiae were measured using the axial transmission technique. They showed a significant correlation with the cortical thickness and tended to follow the theoretical group velocity of the lowest order antisymmetrical Lamb wave fairly well, consistent with the behavior of the slow guided wave in long cortical bones.
authors.affiliation: Department of Physics, Kangwon National University, Chuncheon 200-701, Republic of Korea acustica@kangwon.ac.kr.
authors.forename: Kang Il
authors.initials: KI
authors.lastname: Lee
authors.affiliation: Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea swyoon@skku.ac.kr.
authors.forename: Suk Wang
authors.initials: SW
authors.lastname: Yoon
mesh_terms: D000818:Animals; D002417:Cattle; D054459:Elasticity Imaging Techniques / Q000295:instrumentation / Q000379:methods*; D066298:In Vitro Techniques; D059629:Signal-To-Noise Ratio; D013016:Sound; D013977:Tibia / Q000000981:diagnostic imaging* / Q000648:ultrastructure; D013997:Time Factors