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Donald Wright

Associate Professor Emeritus of the Thomas Lord Department of Mechanical Engineering and Materials Science
Thomas Lord Department of Mechanical Engineering and Materials Science
Box 90300, Durham, NC 27708-0300
142 Engineering Bldg, Durham, NC 27708

Selected Publications

A model of categorization for use in automated failure analysis

Journal Article Journal of Vibration and Acoustics, Transactions of the ASME · January 1, 1988 Categorization is the procedure of determining set membership based on either necessary or statistically suggestive conditions for membership. This procedure lies at the heart of automated metallurgical failure analysis, controlling the accuracy of the fin ... Full text Cite

A knowledge-based program for diagnosing metallurgical failures

Journal Article Computers and Structures · January 1, 1986 Failure analysis of structures, a component of the design process, attempts to minimize the costs of mechanical failure by recommending changes in the geometry, materials, processing, or servicing of critical items in order to increase structural reliabili ... Full text Cite

The effect of stimulus intensity upon the localization of sound sources on the median plane

Journal Article Journal of Sound and Vibration · February 22, 1975 Experimental results reported in this paper and reported by Davis and Stephens [1] define the relationship between sound intensity and subjects' accuracies in localizing a sound source on the median plane. For white-noise intensities greater than 40 dB SL, ... Full text Cite

Spectral cues used in the location of sound sources on the median plane

Journal Article J. Acoust. Soc. Am. (USA) · 1974 The accuracy of subjects localizing low- and high-pass-filtered white noise was investigated in order to establish the frequency spectrum necessary for localization. The directions most often perceived by subjects localizing white noise coloured by high-pa ... Cite

Improvements to a small free-field listening room

Journal Article J. Sound Vib. (UK) · 1974 An inexpensive free-field listening room (7 ft 8 in×5 ft 9 in×6 ft 7 in high) was designed and constructed with walls made of 5 inch high acoustical foam wedges backed by 11/2 inch foam and a 31/2 inch layer of building-grade Fiberglas. The com ... Cite

Control concepts for pneumatic-tube vehicles

Journal Article Trans. ASME, G, J. Dyn. Syst. Meas. Control (USA) · 1974 The pneumatic-tube transport system, its operation, and its conceptual development as a high-speed-ground-transportation alternative are discussed briefly. Schemata for control of passive and nonpassive tube vehicles are proposed. System simulations employ ... Cite