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The Music Muse
(Virginia Tech, 1996-11-01)
Ever wonder why two people can sing the same note with the same loudness, but sound completely different? Middle C is middle C no matter who sings it, yet for some reason Lucianno Pavarotti1s middle C sounds richer and ...
Tribopolymerization: Anti-Wear Behavior of New High Temperature Additive Classes
(Virginia Tech, 1997-08-19)
Advanced ceramic materials have found many new applications in the automotive and other industries. To satisfy demands of higher temperatures and inert surfaces, new lubrication methods for these ceramics need explored ...
A Finite Element Study of Stresses in Stepped Splined Shafts, and Partially Splined Shafts Under Bending, Torsion, and Combined Loadings
(Virginia Tech, 1999-05-04)
<p>The maximum von Mises stress is calculated for solid finite element models of splined shafts with straight-sided teeth. One spline shaft is stepped with larger diameter section containing spline teeth and the smaller ...
Design of User-Weight-based Exercise Machines
(Virginia Tech, 1997-02-07)
This thesis describes the process of designing exercise machines that raise the weight of the user as the primary source of resistance.
Most strength training machines use weight stacks or springs as the source of ...
Evaluation of Moisture Diffusion Theories in Porous Materials
(Virginia Tech, 1998-08-07)
Moisture transport in building materials is directly responsible for structural
damage, as well as poor indoor air quality. For these reasons, the need to
understand transfer mechanisms and predict moisture transport ...
Simulation of Microwave Heating of Mullite Rods
(Virginia Tech, 1997-12-11)
Microwave processing has been studied as an alternate heating technique over conventional heating for industrial applications. Some advantages include quicker and more uniform heating. Also, microwave energy offers the ...
Heat Transfer Issues in Thin-Film Thermal Radiation Detectors
(Virginia Tech, 1999-12-15)
The Thermal Radiation Group at Virginia Polytechnic Institute and State University has been working closely with scientists and engineers at NASA's Langley Research Center to develop accurate analytical and numerical models ...
Experimental Investigation of Hyperbolic Heat Transfer in Heterogeneous Materials
(Virginia Tech, 1998-01-20)
In previous studies, evidence of thermal wave behavior was found in heterogeneous materials. Thus, the overall goal of this study was to experimentally verify those results, and develop a parameter estimation scheme to ...
An Investigation of Performance Limitations in Active Noise Reduction Headsets
(Virginia Tech, 1998-04-27)
Closed-loop performance of an active noise reduction (ANR) headset is limited by phase lag. Speaker dynamics, control hardware, and acoustic wave propagation from the control speaker to the error microphone all contribute ...
A Coupled Heat Transfer and Electromagnetic Model for Simulating Microwave Heating of Thin Dielectric Materials in a Resonant Cavity
(Virginia Tech, 1999-12-09)
Microwave heating is an emerging but still underutilized tool in modern industrial applications. The task of designing microwave applicators for heating industrial materials with temperature-dependent properties is ...