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Electronic Thesis and Dissertation Repository

Theses/Dissertations

2011

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Articles 61 - 63 of 63

Full-Text Articles in Engineering

Development Of An Active Elbow Motion Simulator And Coordinate Systems To Evaluate Kinematics In Multiple Positions, Louis M. Ferreira Jan 2011

Development Of An Active Elbow Motion Simulator And Coordinate Systems To Evaluate Kinematics In Multiple Positions, Louis M. Ferreira

Electronic Thesis and Dissertation Repository

Elbow disorders are common as a consequence of both traumatic and degenerative conditions. Relative to disorders of the lower limb, there is comparatively little evidence to direct the treatment of many elbow disorders. Biomechanical studies are required to develop and validate the optimal treatment of elbow disorders prior to their application in patients. Clinically relevant simulation of elbow motion in the laboratory can be a powerful tool to advance our knowledge of elbow disorders. This work was undertaken with the rationale that simulation and quantification of elbow motion could be improved significantly. This treatise includes the development and evaluation of …


Numerical Simulation Of Tornado-Like Vortices, Diwakar Natarajan Jan 2011

Numerical Simulation Of Tornado-Like Vortices, Diwakar Natarajan

Electronic Thesis and Dissertation Repository

The thesis investigates by numerical simulation the flow characteristics of tornado like vortices produced by three types of vortex generators, namely, Ward-type Tornado Vortex Chamber (TVC), WinDEEE Dome and Atmospheric Vortex Engine (AVE).

Laboratory scale (Ward-type TVC) tornado-like vortices were simulated for swirl ratios 0.1 to 2.0 using the CFD code Fluent 6.3. The simulations with Reynolds stress model compare well with past experimental results. Multiple vortices were observed for high swirl ratios in LES simulation. These simulations have generated a comprehensive benchmark data for future modelers and experimenters.

The effects of translation and surface roughness on laboratory scale tornado-like …


A Usability Maturity Model For Open Source Software, Arif Raza Jan 2011

A Usability Maturity Model For Open Source Software, Arif Raza

Electronic Thesis and Dissertation Repository

User satisfaction has always been a major factor in the success of software, regardless of whether the software is closed proprietary or open source software (OSS). Although user-centered designs are gaining recognition among the OSS community, many design scenarios still do not incorporate usability as one of their primary goals. Accordingly, many individuals believe that if OSS was more usable, its popularity would increase tremendously. Although there are strong examples of usable open source software, there is still potential to improve the usability of OSS. The usability assessment of open source projects is an area where relatively little research has …