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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Delta utility models in decision-based design

Gao, Xinbao. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (site viewed on July 5, 2006). PDF text: viii, 166 p. : ill. ; 2.03Mb. UMI publication number: AAT 3205393. Includes bibliographical references. Also available in microfilm and microfiche formats.

An object-centered three-dimensional model builder /

Dane, Clayton Albert. January 1900 (has links)
Thesis (Ph. D.)--University of Pennsylvania, 1982. / Cover title. Includes bibliographical references.

Cognitive processes in iterative design behavior /

Adams, Robin S. January 2001 (has links)
Thesis (Ph. D.)--University of Washington, 2001. / Vita. Includes bibliographical references (leaves 263-275).

The anatomy of conceptual electronic design /

McNeill, Thomas. Unknown Date (has links)
Thesis (PhD)--University of South Australia, 1999

Cost-based, integrated design optimization.

Iqbal, Azhar. January 2005 (has links)
Thesis (M.A. Sc.)--University of Toronto, 2005. / Source: Masters Abstracts International, Volume: 44-02, page: 0954.

Evaluation activity in the conceptual phase of the engineering design process

Green, Graham. January 1994 (has links)
Thesis (Ph.D.) - University of Glasgow, 1994. / Ph.D. thesis submitted to the Department of Mechanical Engineering, Faculty of Engineering, University of Glasgow, 1994. Includes bibliographical references. Print version also available.

Knowledge based engineering design, modeling and representation /

Jin, Hyunjoon, January 1997 (has links)
Thesis (Ph. D.)--Lehigh University, 1997. / Includes vita. Includes bibliographical references (leaves 162-166).

A study and critical review of design evaluation methodologies /

Verma, Dinesh, January 1991 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 123-129). Also available via the Internet.

Conceptual design of single and multiple state mechanical devices : an intelligent CAD approach /

Li, Chung-lun. January 1998 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1998. / Includes bibliographical references.

Prediction of erosion in cementitious materials subject to high thermal and pressure loading

Wilson, Richard James January 1982 (has links)
The project is a collaboration between the University of Central Lancashire and British Aerospace Warton concerned with the modelling of onset of failure in limestone concrete, due to hot jet exhaust gases impinging on the concrete surface. The temperature distribution was produced using a constant jet temperature with a standard finite difference approximation and the thermal properties of concrete which varied with respect to temperature. The properties of concrete were measured with an initial free moisture content of either 0% or 100%. The finite difference approximation of the saturated concrete simulation was further developed to model the evaporation of free pore moisture. The model predicted surface temperatures were then compared with experimental surface temperatures produced as a result of jet impingement. The results showed good correlation between modelled and experimental results especially at the higher temperatures. Although the various models produced very similar surface temperatures, the distribution of temperature in the plane perpendicular to the surface showed significant variation. The temperature distributions were expressed in terms of thermal stress using firstly an elastic constant to failure and secondly an elastic-plastic model based on the stress-strain curve of concrete. The results produced by the respective models were then compared with experimental data of time to onset failure. The results showed that an elastic model was predicting failure sooner than was seen in practice. The elastic-plastic model was however predicting onset of failure times that were compared with experimental data. The saturated temperature distributions applied to the elastic-plastic model increased the period sustained beneath the jet and the evaporation of free pore moisture was not a significant factor in the prediction of failure.

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