Auburn Theses and Dissertations: Recent submissions
Now showing items 8641-8660 of 9776
Investigation of the Underlying Phenomena of Precipitation in Supercritical Antisolvent Processes
(2008-08-15)
There is significant industrial interest in the ability to effectively produce organic and polymeric microparticles of controllable size and size distribution for numerous applications including certain pharmaceutical ...
Interferon Kinetics and its effect on DNA vaccine induced immunity in channel catfish (Ictalurus punctatus)
(2008-08-15)
Increasing the effectiveness of vaccination against channel catfish diseases, including channel catfish virus (CCV) is important economically and clinically for channel catfish farming. Catfish interferon (IFN), an innate, ...
The Physiological Effects of Bright Plumage Coloration
(2008-08-15)
Songbirds with extensive, carotenoid-based plumage tend to maintain high levels of circulating carotenoids in plasma, which could represent a potential tradeoff between maintaining brightness at the expense of carotenoid-related ...
Invasive Characteristics of Chinese Privet (Ligustrum sinense Lour.) in a Bay Swamp in the Fall Line Hills of East-Central Alabama
(2008-08-15)
Exotic species often become invasive because of an ability to occur in many habitat types with a variety of environmental variables. One species of plant that is particularly invasive throughout the southeastern United ...
Analysis of Stable Isotopes of Hydrogen to Determine Migrational Source of Silver-Haired Bats (Lasionycteris noctivagans) in Alabama
(2008-08-15)
Signatures of deuterium obtained from claws of 21 silver-haired bats (Lasionycteris noctivagans) were used to estimate the nearest probable pre-migratory location of these bats. For 5 consecutive weekends beginning 28 ...
Placement and recovery of seed caches by a solitary rodent, Ord's kangaroo rat (Dipodomys ordii)
(2008-08-15)
Seed caching is a common behavior that has important ecological consequences for seed-hoarding animals, granivorous competitors, and plants whose seeds are harvested and stored. Despite the significance of this behavior, ...
Molecular Responses of Giardia lamblia to Gamma-Irradiation
(2008-08-15)
Giardia lamblia (syn intestinalis, syn duodenalis) is an important human pathogen and the etiological agent of giardiasis, the most common gastrointestinal disease in the world. Since its discovery in 1681, Giardia has ...
Role of Arabidopsis Thaliana Calmodulin Isoforms in Tolerance to Abiotic Stress
(2008-08-15)
Calmodulin and Ca2+ have been implicated in adaptation of plants to changes in its environment. Arabidopsis thaliana (Arabidopsis) genome has nine genetic loci encoding calmodulin protein isoforms. We have used wild type ...
Mating Behavior of Columbian Ground Squirrels
(2008-08-15)
Columbian ground squirrels (Spermophilus columbianus) are diurnal, herbivorous, colonial, and hibernatory rodents that reside in the Rocky Mountains of western North America. During April-July in 2005-2007, field assistants ...
Tufted Lovegrass (Eragrostis pectinacea) and Doveweed (Murdannia nudiflora) Control in Warm-Season Turfgrasses.
(2008-08-15)
Tufted lovegrass has been identified as a problem weed in sod production in Mississippi, Tennessee, Arkansas, Georgia and Alabama, particularly in zoysiagrass. The slow growth rate of zoysiagrass is suspected to be a ...
Grooming Frequency and Spacing Effects on a TifEagle Bermudagrass Putting Green
(2008-08-15)
Cultivation methods for the ultradwarf hybrid bermudagrasses (Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt Davy) are relatively unstudied. The ultradwarf bermudagrasses, with their slow recovery from cultivation ...
Agroecosystem Management Effects on Carbon And Nitrogen Cycling across a Coastal Plain Catena
(2008-08-15)
Agricultural activities contribute an annual increase in radiative forcing of about 20%. In southeastern US, use of cover crops in conservation tillage (CsT) has increased in recent years. However, data on soil C and N ...
Acrolein (2-Propenal): A Potential Alternative to Methyl Bromide
(2008-08-15)
Vegetable producers face a variety of pest species that can negatively impact the performance of their crops. Nematodes, plant diseases, and several weed species, notably nutsedges (Cyperus spp.), are common problems in ...
Competition between Domestic and Imported Farmed Fish - A Demand System Analysis
(2008-08-15)
Monthly data from 1999 through 2007 are used to estimate demand interrelationships between domestic and imported farmed fish. Specifically, a demand model is estimated for four products: imported frozen tilapia fillets, ...
Supply Response of Crops in the Southeast
(2008-08-15)
A model was used to estimate the supply response of corn, cotton, and soybeans in the Southeast United States. The analysis includes state-level data from 1991-2005 in Alabama, Florida, Georgia, North Carolina, South ...
Yaw-Roll Coupled Oscillations of a Slender Delta Wing
(2008-08-15)
The delta wing has been a highly studied aerial planform, from counter rotating vortices to a rolling `wing rock' motion. The research done at Auburn University is an extension of those studies. This research studies not ...
Aerodynamic Testing of a Circular Planform Concept Aircraft
(2008-08-15)
Auburn University has entered into collaboration with Geobat Flying Saucer Aviation Inc. for aerodynamic and flow visualization studies of the Geobat aircraft. The aircraft model that was tested consisted of a circular ...
Launch Vehicle Performance Enhancement Using Aerodynamic Assist
(2008-08-15)
A complete preliminary design model of a three-stage solid-fuel launch vehicle
has been combined with a genetic algorithm to perform an optimization study with the
goal to enhance performance using aerodynamic assist. ...
Effect of Coordinate Switching on Simulation Accuracy of Translunar Trajectories
(2008-08-15)
This thesis focuses on the effect of round-off error in the accurate simulation of translunar trajectories. The three-body dynamics can be posed in either an Earth-centered (EC) or Moon-centered (MC) frame. In this study, ...
Methods for Optimization of a Launch Vehicle for Pressure Fluctuation Levels and Axial Force
(2008-08-15)
A computational fluid dynamics (CFD) code has been combined with a Genetic Algorithm (GA) to perform a shape optimization study on a two dimensional axisymmetric model of a typical launch vehicle. The objective of this ...