Feeding Alkaline Treated And Processed Crop Residue To Feedlot Cattle,
2014
University of Nebraska-Lincoln
Feeding Alkaline Treated And Processed Crop Residue To Feedlot Cattle, Sarah Jean Peterson
Department of Animal Science: Dissertations, Theses, and Student Research
Chemical treatment and decreased particle size are methods used to improve digestibility and utilization of the available nutrients in low quality forages. Previous research has indicated that chemically treated corn residue can take the place of corn when included in finishing rations containing distillers grains. Also, decreasing particle size utilizing methods such as pelleting has been shown to improve DMI and ADG. However, limited research has been completed on use of chemical treatment and pelleting in growing and receiving rations. Also, an ideal distillers inclusion has not yet been identified when including alkaline treated stalks in finishing rations. Therefore, a …
Performance Evaluation Of A Tracking Total Station As A Position Reference Fordynamic Gnss Accuracy Testing,
2014
University of Kentucky
Performance Evaluation Of A Tracking Total Station As A Position Reference Fordynamic Gnss Accuracy Testing, Michael P. Sama, Timothy S. Stombaugh
Biosystems and Agricultural Engineering Faculty Publications
The dynamic accuracy of a tracking total station (TTS) was evaluated using a rotary test fixture to determine the viability of using a TTS as a position reference for dynamic global navigation satellite-based system (GNSS) accuracy testing. Tests were performed at angular velocities ranging from 0 to 3.72 rad/s at a radius of 0.635 m. A technique was developed to determine the average latency of the TTS measurement serial data output. TTS measurements were interpolated at a GNSS sampling interval to provide a method for direct comparison between TTS and GNSS position measurements. The estimated latency from the TTS serial …
Physical And Chemical Attributes Of A Genetically Modified Fruit Pectin,
2014
Purdue University
Physical And Chemical Attributes Of A Genetically Modified Fruit Pectin, Carl Patrick Littrell
Open Access Theses
Pectin is an important polymer used in the food industry as a thickening and gelling agent. Though pectin is ubiquitous in plants, chemical and structural differences among pectin molecules prevent most from being viable for industrial use. Enzymes found naturally in fruit cell walls during the ripening process impair many desirable attributes of fruit pectins, rendering them unsuitable for industrial applications. Pectin methylesterase (PME) is one such enzyme whose expression can be altered during ripening through the use of recombinant genetic engineering. Reduction in levels of PME results in increased degree of methylation and molecular size of pectin, greatly increasing …
Differences In Carbon Dioxide Evolution From Samples Of Shelled Corn Subjected To Various Storage Treatments,
2014
Purdue University
Differences In Carbon Dioxide Evolution From Samples Of Shelled Corn Subjected To Various Storage Treatments, Cininta Alp Pertiwi
Open Access Theses
Shelled corn was collected from two sources - commercial grain elevators and corn harvested from Purdue University farms and then frozen until tested. Using a carbon dioxide (CO2) test kit manufactured by Woods End Laboratories, CO2 evolution measurements were conducted on shelled corn from both sources, after the samples were re-wetted to approximately 21% moisture content, placed in a 473 ml glass jar, and incubated at room temperature for 72 hours. The CO2 test kit uses a gel that changes color in response to a change in the level of CO2 in the surrounding air. …
Design And Development Of A Novel Test Method To Measure The Slipper / Swashplate Interface Fluid Film In A Positive Displacement Machine,
2014
Purdue University
Design And Development Of A Novel Test Method To Measure The Slipper / Swashplate Interface Fluid Film In A Positive Displacement Machine, Natalie A. Spencer
Open Access Theses
Although robust models of fluid film behavior between the slipper / swashplate lubricating interface in positive displacement machines have been developed, measuring this same fluid film thickness to a highly accurate degree inside a relatively unaltered axial piston unit has never been accomplished until now. A test method was created to close this gap in available data by measuring fluid film thickness between the slipper and swashplate in a 130cc axial piston pump. Precise knowledge of the gap height between the slipper and swashplate at various shaft angle locations during operation provides critical insight into machine behavior. The design, validation, …
Solvent System Selection For Xylooligosaccharides Separation By Centrifugal Partition Chromatography Using Conductor-Like Screening Model For Real Solvents,
2014
Purdue University
Solvent System Selection For Xylooligosaccharides Separation By Centrifugal Partition Chromatography Using Conductor-Like Screening Model For Real Solvents, He Zhang
Open Access Theses
The production of value-added, bio-based industrial commodity chemicals is an important area in science right now and this study provides an initial step in the recovery of bio-based chemicals from hemicellulose. Hemicellulose is a long chain polymer mostly consisting of xylose, which is a five-carbon sugar, and a variety of other compounds that are ubiquitous in plant life. The hemicellulose polymer chain can be depolymerized into smaller components, called xylooligosaccharides (XOS) with different chain lengths of xylose linked by beta-1-4 glycosidic bonds, using either hot water, or dilute sulfuric acid. The xylooligosaccharides can then be purified from one another from …
Characterization Of Genetically Modified High Biomass Producing Tobacco Plant,
2014
University of Nebraska-Lincoln
Characterization Of Genetically Modified High Biomass Producing Tobacco Plant, Pankaj Singh Kuhar
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Global warming and peak oil has clouded our energy security. In light of this situation, bioethanol as emerged as one of the most amenable solutions to the problem. However bioethanol has its own shortcomings and transgenics seem imperative to exploit its full potential. A high biomass producing line in transgenic tobacco (Nicotiana tabacum cv. Xanthi) was identified during a routine genetic transformation, termed giant recombinant (GR). To characterize the phenotype of the giant line, growth rate and lignocellulosic composition was analyzed relative to the non-transgenic control line. The GR line accounted for 240% more biomass than the untransformed line …
Affluent Populations And Their Effect On Biological Diversity Through The Consumption Of Meat, Electronics, And Motor Vehicles,
2014
Honors College, Pace University
Affluent Populations And Their Effect On Biological Diversity Through The Consumption Of Meat, Electronics, And Motor Vehicles, Melody Flores
Honors College Theses
The human has caused a far greater impact on the planet's biodiversity than any other species in existence, due to the impact of population, afflluence, and technology. This thesis will argue the importance of biological diversity and how affluent populations are reducing biodiversity through the consumption of meat, electronics, and motor vehicles. Aldo Leopold's "The Land Ethic" and Herman Daly's "The Impossibility Theorem", among others, create a rubric evaluating human activities and provide alternative views on economic impossibilities. Consumption is reviewed from an ecocentric perspective, a holistic outlook placing emphasis on the ecosystem. The reader will become cognizant of their …
Tillamook County Waste Disposal Technology Assessment,
2014
Portland State University
Tillamook County Waste Disposal Technology Assessment, Arvind Kumar, Ryan Menze, Joe Smith, Jerrod Thomas
Engineering and Technology Management Student Projects
Tillamook County is a rural county straddling the Northern Oregon Coast Range with the majority of the local economy based around agriculture, timber, tourism, and fishing. As part of Tillamook County’s mission statement, they strive“to enhance the quality of life for its citizens by promoting and preserving public health and safety, maintaining a stable economy, encouraging wise use of resources, and providing services in the most efficient and cost-effective manner possible.” To that end, Tillamook County, Tillamook County Economic Development Council (TCEDC), Portland State University, Oregon State University, and Tetra Tech have undergone an evaluation and technology assessment process to …
The Applicability Of Vri For Managing Variability In
Infiltration Capacity And Plant-Available Water: A
Preliminary Discussion And Gis Study,
2014
University of Nebraska-Lincoln
The Applicability Of Vri For Managing Variability In Infiltration Capacity And Plant-Available Water: A Preliminary Discussion And Gis Study, Tsz Him Lo, Luciano Mateos, Derek M. Heeren, Joe D. Luck
Department of Agricultural and Biological Systems Engineering: Faculty Publications
Although variable rate irrigation (VRI) has been researched and marketed for a number of years, research that quantifies the magnitude of VRI’s potential benefits and that are translatable to unmonitored fields is lacking. The potential reduction in seasonal irrigation is proposed as the criterion for beginning to evaluate the use of VRI to improve agricultural water management when infiltration capacity and plant-available water are spatially variable inside a field. An initial geographic information system study using publicly available geospatial data was conducted to examine soil and topographic properties associated with such variability within 1100 center pivots across 11 counties. The …
Finite Element Modeling Of Long-Term Phosphorus
Leaching Through Macropores In The Ozark Ecoregion,
2014
University of Nebraska-Lincoln
Finite Element Modeling Of Long-Term Phosphorus Leaching Through Macropores In The Ozark Ecoregion, Ryan P. Freiberger, Derek M. Heeren, Garey A. Fox, Chad J. Penn, Dean E. Eisenhauer
Department of Agricultural and Biological Systems Engineering: Faculty Publications
Phosphorus (P) is a critical nutrient for plant growth in agriculture, but is also responsible for surface water enrichment that leads to toxic algal growth. While P loading to surface waters has traditionally been thought to occur from surface runoff, contributions from subsurface transport can also be significant. While P transport through many soil types is well-documented, the presence of highly conductive gravel outcrops and macropore networks can have a significant, yet poorly-documented effect on P movement to the aquifer. Floodplain soils in the Ozark ecoregion generally contain coarse chert gravel layers that exhibit macropore behavior. Previous research has evaluated …
Vehicle Multi-Pass Rut Volume And Mobility Power Study,
2014
University of Tennessee, Knoxville
Vehicle Multi-Pass Rut Volume And Mobility Power Study, William W. Barbour
Pursuit - The Journal of Undergraduate Research at The University of Tennessee
This paper presents the relationship between applied power by a wheeled vehicle to soil and the rutting effects. Specifically, a strong positive relationship was found between cumulative applied power and total rut volume across multiple passes by the vehicle over the same tracks. Field-testing was conducted using a high-mobility multi-purpose wheeled vehicle (HMMWV) and two distinct soil types. Sensors on the vehicle measured torque and angular velocity of each of the four wheels, from which applied power was calculated. A rut profile meter was used to document the shape of the rut after set numbers of passes and this profile …
Micro-Irrigation Design For Avocado Orchard In California,
2014
California Polytechnic State University, San Luis Obispo
Micro-Irrigation Design For Avocado Orchard In California, Michael C. Meyer
BioResource and Agricultural Engineering
This project encompasses the design and recommendations for a micro-irrigation system on an avocado orchard owned by Underwood Family Farms in Somis, California. The main objective of this report is to improve the existing irrigation system’s efficiency and uniformity with the new design and recommendations. The analysis includes information about good irrigation practices, irrigation system design and all the processes herein. Although there are many opinions on growing, irrigating and maintaining an avocado orchard, all of the methods, procedures and suggestions must be based on accurate data to provide reliable information to the grower. Evaluating the irrigation system and suggesting …
Redesign And Evaluation Of The Irrigation System For The Cal Poly Radio Hill Avocado Grove,
2014
California Polytechnic State University, San Luis Obispo
Redesign And Evaluation Of The Irrigation System For The Cal Poly Radio Hill Avocado Grove, Rob Hillebrecht
BioResource and Agricultural Engineering
No abstract provided.
Design, Construction And Analysis Of An Ag Equipment Trailer,
2014
California Polytechnic State University, San Luis Obispo
Design, Construction And Analysis Of An Ag Equipment Trailer, Connor Mckean
BioResource and Agricultural Engineering
No abstract provided.
Analysis Of Crop Dryer Recirculation And Heat Recuperation,
2014
California Polytechnic State University, San Luis Obispo
Analysis Of Crop Dryer Recirculation And Heat Recuperation, Ross Ribeiro
BioResource and Agricultural Engineering
No abstract provided.
Evaluation, Installation, And Documentation Of Adcon Telemetry Stations Connected At Cal Poly,
2014
California Polytechnic State University, San Luis Obispo
Evaluation, Installation, And Documentation Of Adcon Telemetry Stations Connected At Cal Poly, Shelsie Kloepper
BioResource and Agricultural Engineering
No abstract provided.
Design And Fabrication Of An Electric Aircraft Dolly,
2014
California Polytechnic State University, San Luis Obispo
Design And Fabrication Of An Electric Aircraft Dolly, Kyler Zike
BioResource and Agricultural Engineering
No abstract provided.
Analysis Of Flap Gate Design And Implementations For Water Delivery Systems In California And Nevada,
2014
California Polytechnic State University, San Luis Obispo
Analysis Of Flap Gate Design And Implementations For Water Delivery Systems In California And Nevada, Kerilyn Ambrosini
BioResource and Agricultural Engineering
No abstract provided.
Pump Station Calculations And Irrigation System Evaluation For Trestle Vineyard,
2014
California Polytechnic State University, San Luis Obispo
Pump Station Calculations And Irrigation System Evaluation For Trestle Vineyard, Linda Bushey
BioResource and Agricultural Engineering
No abstract provided.
