Browsing ETDs: Virginia Tech Electronic Theses and Dissertations by Title
Now showing items 15042-15061 of 38450
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The F [subscript N] method for a bare critical cylinder
(Virginia Polytechnic Institute and State University, 1982)The FN method, originated by C. E. Siewert, is developed for a bare, axially infinite critical cylinder. The full-range completeness and orthogonality properties of the singular eigenfunctions are used to derive ... -
f-DSM: An FPGA-Accelerated Distributed Shared Memory for Heterogeneous Instruction-Set-Architecture Hardware
(Virginia Tech, 2022-03-03)Due to the diminishing relevance of Moore's Law, traditional multi-core systems are increasingly struggling to meet the computational demands of many emerging workloads. Heterogeneous computing, which involves exploiting ... -
The Fabric of a Neighborhood: Hilton Village in Newport News, Virginia
(Virginia Tech, 1995-05-04)This thesis is an analytic study of a neighborhood. Using Hilton Village in Newport News, Virginia as an example, the graphic analysis encompasses all levels of the neighborhood fabric and considers several possible ... -
Fabricated Preservation
(Virginia Tech, 2020-05-19)"Fabricated Preservation" aims to push the boundaries with traditional theses, creating a multi-layered experience that blends fact and fiction through a performance that centers around environmental storytelling in virtual ... -
Fabricating Multifunctional Composites via Transfer of Printed Electronics Using Additively Manufactured Sacrificial Tooling
(Virginia Tech, 2022-06-07)Multifunctional composites have gained significant interest as they enable the integration of sensing and communication capabilities into structural, lightweight composites. Researchers have explored additive manufacturing ... -
Fabrication and Characterization of a Porous Clad Optical Fiber Gas Sensor
(Virginia Tech, 2008-12-17)An optical fiber has been developed that can be used as a chemical gas sensor. Fabrication of the optical fiber produces a fiber that has a solid core with a porous cladding. The porous cladding region is made from a ... -
Fabrication and Characterization of Carbon Nanocomposite Photopolymers via Projection Stereolithography
(Virginia Tech, 2014-08-19)Projection Stereolithography (PSL) is an Additive Manufacturing process that digitally patterns light to selectively expose and layer photopolymer into three dimensional objects. Nanomaterials within the photopolymer are ... -
Fabrication and Characterization of Layer by Layer Assembled Single and Dual-Electrochrome Electrochromic Devices
(Virginia Tech, 2009-12-04)This thesis presents applications of the layer-by-layer (LbL) assembly technique in fabrication of thin films with a primary focus on design and development of electrochromic devices. The optical properties of electrochromic ... -
Fabrication and Characterization of Narrow-Stripe Quantum Well Laser Diodes
(Virginia Tech, 2009-06-25)More efficient semiconductor lasers will be needed in tomorrow's applications. These lasers can only be realized through the application of new device processing techniques, designed to restrict current, carrier, and/or ... -
Fabrication and characterization of poly(amide-imides)/TiO₂ nanocomposite gas separation membranes
(Virginia Tech, 1996-10-15)Nanosized Ti0₂ rich domains were generated in-situ within poly(amide-imide) (PAl) and 6F-poly(amide-imide) (6FPAl) by a sol-gel process. The composite films showed a high optical transparency. The morphology of the Ti0₂ ... -
Fabrication and Characterization of Polyimide-based Mixed Matrix Membranes for Gas Separations
(Virginia Tech, 2004-07-14)A series of mixed matrix membranes based on zeolites incorporated into fluorinated polyimides were fabricated and characterized in this study. The first system consisted of a polyimide (6FDA-6FpDA-DABA) with carboxylic ... -
Fabrication and Characterization of Superconducting Core Fibers with Fused Silica Cladding
(Virginia Tech, 2014-01-29)Since the discovery of superconductivity, its fantastic properties have fascinated the scientific community. The discovery of high critical temperature (Tc) superconducting compositions further inspires the wide applications ... -
Fabrication And Damping Behavior Of Particulate BaTiO3 Ceramic Reinforced Copper Matrix Composites
(Virginia Tech, 2004-11-19)Metal matrix composites offer unique opportunities for achieving multi-functionality in materials. In an attempt to investigate the possibility of enhancing damping characteristics of structural metals, copper was reinforced ... -
Fabrication and Gas Permeation Studies on Polyimide/Layered-Aluminum Phosphate Nanocomposite Membranes
(Virginia Tech, 2003-07-01)Polymer – clay nanocomposites have improved thermal, mechanical, and barrier properties when compared with the pure polymer. The objective of this study was to examine if gas separation performance could be improved by ... -
Fabrication and Optoelectronic Characterization of Nanoscale Resonance Structures
(Virginia Tech, 2020-05-07)Resonance structures have long been employed by RF and microwave devices ranging from antennas, to wave guides. These resonance structures have exhibited an enormous amount of control over the wavelength selectivity, ... -
Fabrication and Structural Performance of Random Wetlay Composite Sandwich Panels
(Virginia Tech, 2003-06-06)The random wetlay process is used to make fiber-reinforced thermoplastic sheets that can be compression molded into composite panels at little cost. By utilizing these composite panels as the facesheets of honeycomb ... -
Fabrication and Testing of a Heat Exchanger Module for Thermoelectric Power Generation in an Automobile Exhaust System
(Virginia Tech, 2013-01-07)Thermoelectric generators (TEGs) are currently a topic of interest in the field of energy harvesting for automobiles. In applying TEGs to the outside of the exhaust tailpipe of a vehicle, the difference in temperature ... -
The fabrication of carbon-fiber composites by aqueous suspension prepregging with larc-tpi and peek
(Virginia Tech, 1991)A novel method of impregnation was used to make thermoplastic prepregs with aqueous suspension of polymer powder and AS-4 carbon fibers. The prepregging, consolidation, and laminate evaluation procedures are described in ... -
Fabrication of Fluorescent Nanoprobes and Their Applications in Nanophotonics
(Virginia Tech, 2008-12-10)In recent years, nanoprobe-based devices have attracted significant attention and found a wide range of applications, including nanostructure imaging, single molecular detection, and physical, chemical, and biological ... -
Fabrication of intensity-based Long-Period-Gratings fiber sensor with CO2 Laser
(Virginia Tech, 2015-07-25)This thesis investigates the fabrication technique and procedures for producing long period grating (LPG) fiber sensors with point-by-point irradiation under a CO2 laser beam. The type of fiber sensor under examination is ...
