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Evaluation of stress induced damage in composite materialPriston, Ann-Marie January 1997 (has links)
No description available.
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An analysis of normal incidence acoustic backscatter for seabed discriminationHeald, Gary J. January 2000 (has links)
No description available.
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Voice and lip based speaker verificationPandit, Medha January 2000 (has links)
No description available.
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Numerical solutions for acoustic Rayleigh wave scattering in discontinous media.Munasinghe, Mohan, 1945- January 1973 (has links)
No description available.
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Delayed hearing loss following vestibular schwannoma surgery: Behavioural and electrophysiological responses in the early postoperative periodFeldman, Melanie Blair January 2008 (has links)
Some patients suffer hearing loss in the early postoperative period following vestibular schwannoma (VS) excision despite having intact hearing immediately after surgery. As this phenomenon has rarely been documented or described, the putative mechanism remains vague. The objective of the current study was to document the patterns of change in behavioural and electrophysiological responses in patients following VS surgery to better describe the phenomenon of delayed hearing loss. In particular, we aimed to determine whether the impairment that eventually leads to delayed hearing loss is neural or cochlear in origin. Auditory function was monitored in six adult patients who underwent surgery at Christchurch Public Hospital for excision of unilateral vestibular schwannoma through the retrosigmoid approach. Patients were assessed pre- and postoperatively by puretone audiometry, speech audiometry, tympanometry, distortion product otoacoustic emissions (DPOAEs), and auditory brainstem response (ABR). When measurable hearing was demonstrated postoperatively, pure-tone audiometry, speech audiometry and ABR were assessed at 24 hour intervals following surgery. Transtympanic electrocochleography (ECochG) was carried out if wave I of the ABR was lost during the postoperative period. Postoperative monitoring revealed that 4 patients suffered permanent anacusis and the remaining 2 patients had permanent hearing preservation. There were no patients who experienced delayed hearing loss in the early postoperative period. A phenomenon similar to delayed hearing loss was observed in case 2 who demonstrated loss of ABR wave I on the 7th postoperative day. Postoperative ECochG recorded in this case showed an enhanced negative SP on the operated side. The findings of this study are discussed in detail with particular reference to the underlying pathophysiology.
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Seismic tomography in western Washington /Lees, Jonathan Matthew, January 1989 (has links)
Thesis (Ph. D.)--University of Washington, 1989. / Vita. Includes bibliographical references.
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Indication of cylinder pressure rise rate by means of vibration and acoustic emissions of an internal combustion engineMassey, Jeffery A. January 2008 (has links) (PDF)
Thesis (M.S.)--Missouri University of Science and Technology, 2008. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 1, 2008) Includes bibliographical references (p. 127-128).
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Development of calibration techniques for ultrasonic hydrophone probes in the frequency range from 1 to 100 MHz /Umchid, Sumet. Lewin, Peter A. January 2007 (has links)
Thesis (Ph.D.)--Drexel University, 2007. / Includes abstract and vita. Includes bibliographical references (leaves 109-115).
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Physical systems for the active control of transformer noise /Li, Xun. January 2000 (has links) (PDF)
Thesis (Ph.D.)-- University of Adelaide, Dept. of Mechanical Engineering, 2000. / Bibliography: leaves 182-190. Also available electronically.
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Physical systems for the active control of transformer noiseLi, Xun. January 2000 (has links)
Thesis (Ph.D.)--University of Adelaide, Dept. of Mechanical Engineering, 2000? / Bibliography: leaves 182-190. Also available in print form.
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