Index Catalog // ScholarsArchive@OSU

Effects of doping, cation stoichiometry, and the processing conditions on the dielectric properties of high-K CaCu₃Ti₄O₁₂ ceramics

Creator:: Kwon, Seunghwa
Abstract:: Since its discovery, the anomalous dielectric behavior of CaCu₃Ti₄O₁₂ (CCTO) has drawn a great deal of attention for many possible applications in electronic devices. The origin of the giant dielectric constant in CCTO was explained via an internal barrier layer capacitor model, and it has been reported that the dielectric...
Resource Type:: Dissertation
Full Text:: Dielectric Properties of High-K CaCu3Ti4O12 Ceramics Abstract approved

Mechanical Behavior of Elastomer Polymer under Shear and Compression: Experimental Investigation Using Digital Image Correlation

Creator:: Raheem, Hassan M.
Abstract:: Due to their viscoelastic properties, polymers and hydrogels are widely used in many applications. In this study, the viscoelastic properties of elastomer polymers were investigated for a series of hydrogel, hydrogel composites and silicon materials. A primary application for hydrogels and hydrogel composites is as a replacement for the degenerated...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Brian K. Bay Skip E. Rochefort Due to their viscoelastic

Development of high efficiency solar absorbers

Creator:: Ravichandran, Ram
Abstract:: Current cadmium telluride and copper indium gallium diselenide thin-film solar cells (TFSCs) utilize thick absorbers (2 - 4 μm). For efficient carrier extraction in these TFSCs, the absorber layer requires high carrier mobilities and a long minority carrier lifetime, which necessitates the use of a high purity, defect-free thin film....
Resource Type:: Dissertation
Full Text:: many people in Corvallis who have helped me make OSU home, especially Dr. William Cowell, Ira Jewell

A study of compression loading of composite laminates

Creator:: Berbinau, Pierre J.
Abstract:: The compressive behavior of continuous fiber composites is not as well understood as their tensile behavior because research and industrial applications have until recently focused on the latter. Furthermore, most theoretical and experimental studies on the compression of composites have examined the case of unidirectional specimens with fibers along the...
Resource Type:: Dissertation
Full Text:: and analytical research skills. I would also like to thank Drs. Timothy C. Kennedy, William H

Processing of laser interferometric signals for small displacement measurements

Creator:: Peng, Gwo-sheng
Abstract:: Algorithms for analyzing laser interferometry signals were developed and adopted to the computer based processing of small displacement measurements. These methods, matrix operation approach and fixed parameters approach, are based on signal phase calculation and are able to replace complex fringe counting electronic circuits. The matrix operation provides an approach...
Resource Type:: Dissertation
Full Text:: . Thomas K. Plant, Dr. Timothy C. Kennedy and Dr. William H. Warnes for reviewing the dissertation and

Development and characterization of novel hydrogels for nucleus pulposus replacement

Creator:: Bader, Rebecca A.
Abstract:: Hydrogels have been proposed as candidates for nucleus pulposus replacement due to their similarity in mechanical behavior to the native tissue when subjected to transient or static loading; however, given the viscoelastic nature of soft biological tissues, the lack of dynamic testing is a significant inadequacy in the studies performed...
Resource Type:: Dissertation
Full Text:: scientist. Thank you Skip. Dr. William Warnes provided me with guidance on all written works and

Failure analysis of pre-notched composite laminated plates under four-point bending conditions

Creator:: Arias Gonzales, Sergio
Abstract:: Ever since composite laminate technology was introduced into the aerospace and automotive industry, there has been a need to fully understand the damage progression experienced by composite laminated plates in the presence of a notch. While numerous research studies have been conducted on this matter when subjected to in-plane loads,...
Resource Type:: Dissertation
Full Text:: great mentor and engineer that you are. To Dr. William H. Warnes: Bill, you are one of the best

Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

Creator:: Johnson, Taylor N.
Abstract:: Traditional approaches to streaming H.264 video over a network typically rely on a single method of transport (i.e., reliable or unreliable) and/or use static values for parameters that can have a significant negative impact on the perceptual quality of the received video. This dissertation presents a dynamic method for wireless...
Resource Type:: Dissertation

Deletions and Insertions of the Symbol 0 and Asymmetric/Unidirectional Error Control Codes for the L₁ Metric

Creator:: Alqwaifly, Nawaf
Abstract:: This work gives some theory and efficient design of binary block codes capable of controlling the deletions of the symbol “0” (referred to as 0-deletions) and/or the insertions of the symbol “0” (referred to as 0-insertions). This problem of controlling 0-deletions and/or 0-insertions (referred to as symmetric 0-errors) is shown...
Resource Type:: Dissertation
Full Text:: systematic code designs are given. In particular, for all t,k ∈N, a recursive method is presented to

Information theoretic approach to quantization and classification for signal processing, communications, and machine learning applications

Creator:: Thuan Nguyen D.
Abstract:: There are five main contributions of this dissertation. The first contribution is new closed-form expressions for channel capacity of a new class of channel matrices. The second contribution is the discovery of the structure for optimal binary quantizer and the associated methods for finding an optimal quantizer that maximizes mutual...
Resource Type:: Dissertation
Full Text:: is the discovery of the structure for an optimal K-ary quantizer that maximizes the mutual

ScholarsArchive@OSU

Effects of doping, cation stoichiometry, and the processing conditions on the dielectric properties of high-K CaCu₃Ti₄O₁₂ ceramics

Mechanical Behavior of Elastomer Polymer under Shear and Compression: Experimental Investigation Using Digital Image Correlation

Development of high efficiency solar absorbers

A study of compression loading of composite laminates

Processing of laser interferometric signals for small displacement measurements

Development and characterization of novel hydrogels for nucleus pulposus replacement

Failure analysis of pre-notched composite laminated plates under four-point bending conditions

Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

Deletions and Insertions of the Symbol 0 and Asymmetric/Unidirectional Error Control Codes for the L₁ Metric

Information theoretic approach to quantization and classification for signal processing, communications, and machine learning applications

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