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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.
161

Mixing in axial compressors

Li, Yan Sheng January 1990 (has links)
No description available.
162

Design and development of a particulate emission monitor

Gerazounis, Stylianos January 2000 (has links)
No description available.
163

Crack growth transition in Udimet 720

Loo-Morrey, Marianne January 1997 (has links)
No description available.
164

Adaptive signal processing and higher order time frequency analysis for acoustic and vibration signatures in condition monitoring

Lee, Sang-Kwon January 1998 (has links)
No description available.
165

Buckling of flat plates and cylindrical panels under complex load cases

Featherston, Carol January 1997 (has links)
No description available.
166

Turbulence and combustion instabilities in engines

Harper, C. M. January 1989 (has links)
No description available.
167

The modelling of matrix-coated fibre composite consolidation

Carmai, Julaluk January 2001 (has links)
No description available.
168

Cycle-by-cycle variation in spark ignition combustion engines

Ball, Jeffrey K. January 1998 (has links)
No description available.
169

Virtual reality platform designed for spatial cognition studies

Byagowi, Ahmad 08 September 2016 (has links)
In this dissertation, a new method of interaction with virtual reality (VR) has been presented. The VR environment, developed in this work provides a realistic and immersive environment that is developed for studying human’s spatial cognition abilities. Different technical aspects of the implementation are described. To improve the accuracy of the experiments, a new method for comparing and analyzing trajectories has been presented. A set of human subject experiments have been conducted using the developed platform. The first experiment was based on an ordinary computer, a joystick and 40 cognitively healthy participants within the age range of 19 to 82 years. Participants were asked to perform the VR spatial cognition test by navigating in the VR environment. It was found that computer usage skills had an effect on the overall performance of the participants as well as motion sickness; such an effect was undesirable. To resolve both problems, a novel input device made from the combination of a wheelchair and a motion capture unit, called VRNChair was developed. The VRNChair allows the participant to move physically in the real world in order to navigate in the VR environment. This allows participants to have a more intuitive interaction with the VR environment. Since the participant physically experiences the motion seen in the VR, motion sickness is minimized. A test based on two age groups, 34 young (< 40 years) and 20 older (60+ years) participants was performed. The results showed no difference between using the VRNChair or the joystick for the young participants while it showed considerable improvement among the older participants. Furthermore, it was noted that participants became distracted while using the VRNChair, Hence, a head mounted display (HMD) was added to the platform. A test with 14 males showed less distraction to the participant by using the HMD. Overall, the VR environment designed in this work passed all the validation experiments successfully. It offers a novel solution to overcome induced motion sickness experienced as a side effect of VR environments. / October 2016
170

Before Eternity: An Adventure Game Inspired by Sufi Mysticism

Mortazavi Ravari, Seyed Siavash 21 May 2015 (has links)
Before Eternity is a short 3D adventure game that addresses the purpose of our earthly lives, inspired by the Sufi poet Rumi. To support its mystical theme, the design employs impressionistic elements and symbolic activities which deliberately defy many conventions of traditional adventure games. This report explains the design and implementation of the game, as well as its technical and production aspects.

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