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A comprehensive tool to prioritize multiple engineering R & D projects
(2009-02-23)
When trying to allocate funds to different projects, people encounter many situations where they need a methodology that can address the issues that arise and provide a quick solution. In the case study described in this ...
Experimental and Computational Study of Fluid Flow and Heat Transfer in the Lost Foam Casting Process
(2009-02-23)
The Lost foam casting (LFC) process has been considered as one of the most significant modern developments in casting technology. The use of polymer foam patterns allow complex shapes to be created by integrating several ...
Dynamics and Synthesis of Kinematic Chains with Impact and Clearance
(2008-09-09)
The dynamics and synthesis of open and closed kinematic chains with frictional impact and joint clearance is studied.
The impact between rigid bodies with friction is investigated. A new model of impact with friction ...
Thermal Performance of Ball Grid Arrays and Thin Interface Materials
(2008-09-09)
Current electronic packages exhibit very high and ever increasing power densities. That trend mandates the need for enhanced thermal performance. This study introduces a state of the art apparatus to measure thermal ...
Measurement of Absorption Coefficient of Road Surfaces Using Impedance Tube Method
(2008-09-09)
The absorption coefficient of dense and porous road surfaces has been measured using core samples with 4 and 6-inch diameter impedance tubes. The 6-inch tube allows the absorption of a large core sample surface to be ...
Experimental Investigation of Bendable Heat Pipes
(2008-09-09)
Heat pipes are highly conductive heat transfer devices. They use the latent heat of the working fluid for efficient heat transfer over a very small temperature drop. They have been a subject of numerous studies since the ...
Advancements in Vacuum Process Molding and Casting
(2008-09-09)
Vacuum assisted molding, or ‘V’ Process molding, possesses many benefits over other sand casting processes. However, the process lacks the high cooling rates and speed of solidification that other sand casting processes ...
Investigation of the Effect of Radiation on the Thermophoretic Motion of Soot Particles in Free-Molecular Regime
(2008-09-09)
The coupling of radiation and thermophoresis is hypothesized to result in attractive forces among soot particles in combustion environments. The effect of radiation from the soot particles on their thermophoretic motion ...
On-line Estimation of Implement Dynamics for Adaptive Steering Control of Farm Tractors
(2008-09-09)
An adaptive control technique for the control of a farm tractor during low levels of excitation and at low velocities is presented. Results of a set of system identification experiments are compared to previous tractor ...
Modeling Inertial Measurement Units and Anlyzing the Effect of Their Errors in Navigation Applications
(2008-09-09)
In this thesis, a simple model that statistically represents an Inertial Measurement Unit (IMU) output has been studied. This model is then expanded to produce a model that incorporates terms that account for errors ...