Global ETD Search

41	Elastic surface waves guided by a rectangular overlay. Tu, Cheng Chun. January 1972 (has links) No description available. Microwaves Sound-waves Elastic waves
42	A far field analysis of the propagation of sound waves from various point sources through a linear shear layer / Scott, James Nicholas January 1977 (has links) No description available. Engineering Sound-waves Sound pressure
43	Transducer-baffle interaction Marshall, Laurie D. 12 1900 (has links) No description available. Transducers Sound-waves Scattering Elastic plates and shells
44	Aspects of acoustic surface wave propagation 陳宗岳, Chen, Tsong-yueh. January 1974 (has links) published_or_final_version / Physics / Master / Master of Philosophy Wave mechanics. Surface waves. Sound-waves.
45	The use of SAW methods in probing near-surface elastic properties Puentes Heras, M. January 1998 (has links) No description available. 530.41
46	Soundfield analysis and synthesis: recording, reproduction and compression. Wang, Shuai, School of Electrical Engineering & Telecommunication, UNSW January 2007 (has links) Globally, the ever increasing consumer interest in multichannel audio is a major factor driving the research intent in soundfield reconstruction and compression. The popularity of the well commercialized 5.1 surround sound system and its 6-Channel audio has been strongly supported by the advent of powerful storage medium, DVD, as well as the use of efficient telecommunication techniques. However, this popularity has also revealed potential problems in the development of soundfield systems. Firstly, currently available soundfield systems have rather poor compatibility with irregular speaker arrangements. Secondly, bandwidth requirement is dramatically increased for multichannel audio representation with good temporal and spatial fidelity. This master???s thesis addresses these two major issues in soundfield systems. It introduces a new approach to analyze and sysnthesize soundfield, and compares this approach with currently popular systems. To facilitate this comparison, the behavior of soundfield has been reviewed from both physical and psychoacoustic perspectives, along with an extensive study of past and present soundfield systems and multichannel audio compression algorithms. The 1th order High Spatial Resolution (HSR) soundfield recording and reproduction has been implemented in this project, and subjectively evaluated using a series of MUSHRA tests to finalize the comparison. Multichannel communication systems. Sound -- Transmission. Sound-waves.
47	A short-time correlator for speech waves January 1951 (has links) P.E.A. Cowley, R.M. Fano [and] B.L. Basore. / "February 26, 1951." / Bibliography: p. 22. / Army Signal Corps Contract No. DA36-039 sc-100 Project No. 8-102B-0. Dept. of the Army Project No. 3-99-10-022. TK7855.M41 R43 no.174 Sound-waves
48	Ultrasonic beam propagation in turbulent flow Weber, Francis J. January 2004 (has links) Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: ray trace method; turbulence; ultrasonic flowmeter. Includes bibliographical references (p. 157-168).
49	Thermoacoustically induced and acoustically driven flows and heat transfer in enclosures / Aktas, Murat K. Farouk, Bakhtier. January 2004 (has links) Thesis (Ph. D.)--Drexel University, 2004. / Includes abstract and vita. Includes bibliographical references (leaves 129-134).
50	I: On the propagation of large disturbances in a gas. II: On the combustion of oil ... Theodorsen, Theodore, January 1929 (has links) Thesis (Ph. D.)--Johns Hopkins University, 1929. / Each part has special t.p. Biography.

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