Browsing Auburn Theses and Dissertations by Department "Biosystems Engineering"
Now showing items 81-96 of 96
Segmentation and 3D reconstruction of root systems and Humulus lupulus for high-throughput phenotyping using deep neural networks and 3D imaging
(2023-07-31)
The availability of artificial intelligence (AI) tools for computer vision applications has greatly increased in recent years, with many advanced tools available to researchers across various fields. Precision agriculture ...
Simultaneous Fermentation and Esterification for Butyl Butyrate Production in Biphasic Medium with Clostridium tyrobutyricum
(2017-07-28)
Butyl butyrate (BB) is a valuable chemical that can be used as flavor, fragrance, extractant, etc. in various industries. Meanwhile, BB can also be used as a fuel source with excellent compatibility as gasoline, aviation ...
Soil-Planter Interaction Force Distribution as Affected by Planting Depth Setting and Planter Configuration
(2016-04-26)
Agricultural field planting operations encounter great spatial and temporal variability. Research has shown that seeding depth and soil loading, produced by planting equipment, affect early crop growth as well as crop ...
Solids Retention Governs Nitrification of Poultry Processing Wastewater using an Algal-bacterial Consortium
(2021-12-06)
As water demand increases worldwide, the utilization of alternative water sources, such as wastewater, is becoming necessary. The poultry processing industry generates nutrient-rich wastewater that could be treated and ...
Spatial Analysis of Air Velocity, Air Temperature, and Humidity in Natureform Single-Stage Incubators Using Simulated Eggs
(2023-08-01)
Spatial variation of the thermal environment within incubators has been a critical concern for the optimal development of egg embryos. Variations in air velocity, temperature, and humidity can alter embryonic mortality, ...
Spatial and temporal investigation of taste and odor-producing microorganisms in Lake Saugahatchee
(2021-07-20)
Geosmin is one of the most prevalent taste and odor compounds found in drinking water and is produced by a variety of algae. Quantitative PCR (qPCR) can be used to identify and monitor the growth of geosmin producers by ...
Stabilization Strategies for Preventing Secondary Reactions During Lignin Depolymerization and Valorization
(2021-04-20)
Lignin-derived phenolic and aromatic monomers are rapidly being recognized as forerunners in the race to make sustainable biopolymers that can fulfill the world’s demands for materials in the future. However, lignin being ...
Studies on Methods and Standards for Evaluating Quality of Fresh Post-harvest Oyster (Crassostrea Virginica)
(2014-07-11)
Oysters are one of the most popular seashell foods in the world due to high nutritive value and delicious and unique taste. The consumption of oysters has become an important part of the diet for consumers in the U.S.A. ...
Surface and Subsurface Transport of Phosphorus from Surface and Subsurface-applied Poultry Litter
(2009-11-30)
A plot scale experiment was conducted in a pasture at the Sand Mountain region of north Alabama, USA. Nine plots of 1.52 m by 3.05 m were constructed with sheet metal borders to isolate runoff. The soil was a Hartsells ...
Towards improving agricultural and environmental sustainability in the lower Apalachicola-Chattahoochee-Flint River Basin by understanding the agricultural and climate change impacts on the surface- and groundwater resources
(2020-09-23)
Surface- and groundwater resources in the lower Apalachicola-Chattahoochee-Flint (ACF) River Basin play an important role in the economic and ecological vitality of the region. Agriculture, which contributes more than $2 ...
Toxicity and bioconcentration properties of Perfluorosulfonic acids (PFSAs) on the microalgae Scenedesmus obliquus UTEX 393
(2020-11-17)
Recently, it has been found that Perfluorinated Alkyl Acids (PFAAs) are potentially harmful to humans and the environment. Used in some industrial applications for many years, these compounds are very persistent and do not ...
Understanding The Effect of Catalytic Pyrolysis Bio-oil Produced Using CaO During Hydrotreatment
(2017-11-07)
Energy is very important for sustaining human life, and mankind is dependent on fossil fuels for energy need. Since fossil fuels reserves are limited and are depleting in a rapid rate, there is a surge for alternative fuel ...
Using Discrete Element Modeling to Evaluate Material Distribution Using Spinner-disc Spreaders
(2012-11-06)
Due to rising costs of inorganic fertilizers, more crop producers are turning to organic fertilizers as a soil amendment and fertilizer source. The inherent physical variability of litter makes it difficult to achieve ...
Valuing Ecosystem Services from Forested Landscapes: How Urbanization Influences Drinking Water Treatment Cost
(2010-11-12)
For two decades high total organic carbon (TOC) levels in Converse Reservoir, a water source for Mobile, Alabama, have concerned water treatment officials due to the potential for disinfection byproduct (DBP) formation. ...
What do climate projections say about future droughts in Alabama and the Apalachicola-Chattahoochee-Flint River Basin?
(2015-08-21)
Droughts, often considered the costliest natural disaster, are triggered by severe shortage of water, mainly in the form of precipitation. The Southeast US has been affected by frequent severe droughts in recent years and ...
Within-tree Fuel Quality of Loblolly Pine (Pinus taeda)
(2018-01-25)
There is a lack of knowledge in the whole tree’s fuel quality and how that quality might change within the tree or between size classes of trees. A sample set of 20 loblolly pines (5 trees within 4 diameter at breast ...