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Hybrid approach to tomographic reconstruction of bubbles in two-phase flows using Algebraic Reconstruction Technique (ART), Genetic Algorithm (GA), and Simplex Method
(Texas A&M University, 1999)
Main hurdles in the application of genetic algorithms to complex problems are two-fold. One is the high computational cost due to their slow convergence rate. The other is to reduce the number of input parameters of a ...
Experimental evaluation of rotordynamic coefficients for hybrid metal mesh pocket damper seals in turbomachinery
(Texas A&M University, 1999)
This research was dedicated toward measuring the potential of a new hybrid seal design between a two-bladed PDS and a metal mesh element, which is used as the exit blade of this PDS. The goals were to reduce leakage of the ...
Computer aided analysis for residual stress measurement using ultrasonic techniques
(Texas A&M University, 1999)
Critically refracted longitudinal (Lcr) waves have been investigated with a computerized data acquisition and analysis technique to evaluate residual stresses present in a residual stress reference standard. This measurement ...
The influence of equal channel angular extrusion on texture evolution in pure tantalum
(Texas A&M University, 1999)
Equal channel angular extrusion (ECAE) is a forming process that gives uniform plastic deformation by simple shear to bulk material without changing the cross- sectional area of the work piece. During multiple extrusions ...
Local heat transfer distribution in a triangular channel with smooth walls and staggered ejection holes
(Texas A&M University, 1999)
Transient liquid crystal experiments have been conducted to determine the distribution of the local heat transfer coefficient in a triangular channel with smooth wails and ejection holes along one or two of the wails. The ...
Route to, and control of chaos in multidimensional systems
(Texas A&M University, 1999)
The goal of this thesis is to analyze the dynamic behavior of a given nonlinear system and then control the chaotic behavior of the system within some ranges of the parameters. In the first part of this thesis, we study ...
Experimental evaluation of a metal-mesh bearing damper in a high speed test rig
(Texas A&M University, 1999)
Metal mesh is a commercially available material used in many applications including seals, heat shields, filters, gaskets, aircraft engine mounts, and vibration absorbers. This material has been tested in the Turbomachinery ...
Effect of primer binding probability on amplified misprimed DNA by means of a computational study on the polymerase chain reaction
(Texas A&M University, 1999)
Amplification of deoxyribonucleic acid (DNA) fragments by the polymerase chain reaction (PCR) has significantly contributed to the rapid development of the modern biomedical sciences. Amplification of DNA fragments is ...
A new algorithm for detecting erroneous loop detector data
(Texas A&M University, 1999)
Reduced safety and increased congestion are a major concern on U.S. roadways. Traffic Management Centers (TMC) can reduce emergency vehicle response time with prompt detection of incidents. TMCS detect incidents by applying ...
Local heat transfer and film effectiveness of a film cooled gas turbine blade tip
(Texas A&M University, 1999)
Gas turbine engines due to high operating temperatures undergo severe thermal stress and fatigue during operation. Cooling of these components is a very important issue during the lifetime of the engine. Cooling is achieved ...