Auburn Theses and Dissertations: Recent submissions
Now showing items 6741-6760 of 9666
Sound Attenuation Using MEMS Fabricated Acoustic Metamaterials
(2012-04-11)
Unlike traditional rotational gyroscopes, MEMS gyroscopes use a vibrating proof mass rather than a rotational mass to sense changes in angular rate. They are also smaller and less expensive than traditional gyroscopes. ...
Design and Characterization of a Novel Filling Yarn Insertion System for Weaving Machines
(2012-04-11)
Weaving is a textile manufacturing process in which weft yarns are inserted by machines through a gap in the warp yarns called a shed to form a woven fabric through interlacing. The filling insertion systems that are ...
Evaluation of Processed Corncob and Paulownia tomentosa as Substrate Components in Horticulture Crop Production
(2012-04-11)
The main components in soilless substrates for greenhouse and nursery production include pine bark, peatmoss, and perlite. There have been recent concerns with peatmoss because of availability, and the environmental impact ...
Novel Metal-Polymer Composite with High Percolation threshold
(2012-04-11)
0-3 metal-polymer composite based on nano-size Ni particles was studied.
A nanocomposite with nano-size Ni particles embedded into copolymer poly [vinylidene fluoride-co-trifluoroethylene] P(VDF-TrFE) 70/30 ...
Aspergillus niger Control on Strawberries by Recombinant Tobacco Osmotin for Extending Shelf-life
(2012-04-11)
Osmotin, a pathogenesis-related (PR) protein, possesses antimicrobial activity. The objectives of this study were: 1) to determine the stability of the recombinant tobacco osmotin (rOSM), 2) to define the antimicrobial ...
Prosodic Characteristics Observed in Verbal Children with Autism
(2012-04-11)
Children with autism spectrum disorders (ASD) exhibit difficulties with the
suprasegmental aspects of speech production, more specifically, with prosody. However,
there is a paucity of research regarding the perception ...
Occurrence and Habitat Use of Bats in Central Alabama Forests
(2012-04-10)
Limited information is available on the relationship between characteristics of landscape and seasonal use of habitat for forest-dwelling bats in central Alabama. This study was designed to clarify these relationships and ...
Breaching of Concrete Masonry Unit Walls due to Direst Shear when Subjected to Blast Loading
(2012-04-10)
This report details the steps needed to formulate an engineering design equation to address the potential for breaching of concrete masonry walls in between grout cells when subjected to blast loading. Prior to the beginning ...
Fate and Transformation of Oils and Trace Metals in Alabama and Louisiana Coastal Marsh Sediments Associated with the British Petroleum Gulf Oil Spill
(2012-04-10)
The effects of the 2010 BP Macondo-1 well oil spill on the geochemistry of sediments and water columns at ten Gulf salt-marsh sites were investigated, months after the spill ceased. The ten sampling sites include four ...
Salt and Light Water Purification System
(2012-04-09)
The need for a proposed solution to help mitigate the world’s water crisis is presented. This need is not a new development in the 21st century, nor is the process of using electricity and chemicals to sanitize water. ...
Impact of cogongrass (Imperata cylindrica) presence and management strategies on arthropod natural enemy populations in longleaf pine stands
(2012-04-09)
Cogongrass (Imperata cylindrica Beav.) is an aggressive, invasive weed that is threatening the integrity of longleaf pine (Pinus palustris Mill.) ecosystems in southeast Alabama. Various management strategies are implemented ...
Role of water availability on fish assemblage structure: effects of agricultural land use and spawning mode
(2012-04-09)
The availability of water has been changing as human demands increase, weather patterns change, and land use is altered. This is a common trend throughout the world as well as in the tributaries of the Middle Chattahoochee ...
Non-collocated Control of an Autonomous Robot-Trailer System Using State Estimation
(2012-04-09)
In this work, the author develops an observer and non-collocated controller for a robot-trailer system in which only the position of the trailer is measured. A linearized state-space model of the system is derived using ...
The Role of the Victim-Perpetrator Relationship in the Development of PTSD and Depression Following Sexual Assault
(2012-04-09)
Victims of sexual assault have a high risk for posttraumatic stress disorder (PTSD). However, exposure to sexual assault alone is not sufficient for the development of PTSD. This study examined the impact of victim-perpetrator ...
CONSITEPLAN – A Multi-Objective Construction Site Utilization Planning Tool
(2012-04-09)
Construction Site Utilization Planning (CSUP) involves identifying, sizing, and positioning the temporary construction facilities required during different stages of the project within the available site boundaries and ...
Geochemistry and Mineralogy of Eastern Ag-Rich Epithermal Veins in the Midas District, Nevada, USA
(2012-04-09)
Five Ag-rich epithermal veins were recently discovered in the eastern section of the Midas district in northern Nevada. Initial data collected indicated that these veins had a significantly higher quantity of silver relative ...
Economic Impact of Striped Bass Angler Visitation at Lewis Smith Lake, Alabama
(2012-04-09)
Recreational fishing for black bass (largemouth bass Micropterus salmoides and Alabama bass M. henshalli) and stocked striped bass Morone saxatilis are popular activities at Lewis Smith Lake, Alabama. The objective of the ...
Diving tourism on coral reefs in Florida: Variation in recreational diver behavior and impacts on reef corals
(2012-04-06)
Ecotourism often is promoted as an ecologically-friendly use of natural resources, however if not managed carefully, can cause negative impacts to ecosystems. In the Florida Keys, minimal government involvement in regulating ...
Characterization of New Populations in Sunn Hemp (Crotalaria juncea L.) and Relationship of Their Traits to Yield
(2012-04-04)
Sunn hemp (Crotalaria juncea L.) is a short-day, erect shrubby annual, generally 1 to 4 m in height. It is a candidate species for crop rotation schemes as a means of weed suppression and as a green manure crop to improve ...
Migratory Characteristics and Passage Efficiency of Fishes at Two Dams on the Alabama River, Alabama
(2012-04-04)
Fish passage facilities are a widely accepted mitigation tool at many dams in the United States to assist migratory fish species to upstream spawning areas on the U.S. Atlantic and Pacific coasts. Here we investigated the ...