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Biomedical Engineering and Bioengineering Commons™
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Full-Text Articles in Biomedical Engineering and Bioengineering
An Analysis Of Liquid Aluminum Sulfate (Alum) Use In Broiler Production Houses To Control In-House Ammonia (Nh3) Concentrations And Naturally-Occurring Salmonella And Campylobacter; The Development Of An Nh3 Emission Factor For A Typical Tennessee Broiler House., Kenneth A. Armstrong
Masters Theses
No abstract provided.
Instrumented Self-Propelled Sprayer To Determine Dynamic Boom Effects On Droplet Application Uniformity, Hong Young Jeon
Instrumented Self-Propelled Sprayer To Determine Dynamic Boom Effects On Droplet Application Uniformity, Hong Young Jeon
Masters Theses
A self-propelled sprayer with a 27-m boom was instrumented to measure inadvertent boom movement and acceleration during field operation to quantity application uniformity. The instrumentation system was developed to monitor boom end heights, accelerations, and sprayer longitudinal position along a track. Acceleration measures included longitudinal (x), vertical (y), and transverse (z) components at the sprayer vehicle rear, boom center, and at each boom end. A PC-based data acquisition system polled sensors at 2.5 kHz. Software-implemented, 2nd-order Butterworth band pass (0.1 to 15 Hz) filtering of raw data reduced signal noise. Y-accelerations at the boom center ranged from 1.5 …
A Distributed Control System For Priority-Based Site-Specific Irrigation, Fabio Rodrigues De Miranda
A Distributed Control System For Priority-Based Site-Specific Irrigation, Fabio Rodrigues De Miranda
Doctoral Dissertations
Site-specific irrigation enables maximizing yields and water use efficiency for fields with variation in soil water availability. Distributed control for fixed irrigated systems, with controllers close to the sensors and actuators in the field, is easier to install and maintain, and less susceptible to damage by lightning strikes compared to centralized control, but is only economically viable with affordable, low-power controllers. A low cost, solar-powered, feedback irrigation controller for distributed control of fixed irrigation systems was developed and tested. The system used soil water potential measurements to control the amount of water applied to each specific zone of a field. …
Delineation Of Management Units For Site-Specific Irrigation.”, Carlos Wagner Oliveira
Delineation Of Management Units For Site-Specific Irrigation.”, Carlos Wagner Oliveira
Doctoral Dissertations
Variability of soil properties in many fields is too great for a whole field to be effectively managed with a uniform application of irrigation water. Consequently, a decision must be made for irrigation management about which areas in the field should be treated differently or grouped. A decision-making framework was developed to determine whether site-specific irrigation management would be cost effective for selected fields. The framework is designed to find the best field layout in terms of water management, and tests the hypothesis that there is a particular field management layout that maximizes net return. As part of the framework, …
Interpolation Of Spatial Surfaces And Inferring Subsurface Transitions Using Electrical Conductivity, Robert Claborne Wilson
Interpolation Of Spatial Surfaces And Inferring Subsurface Transitions Using Electrical Conductivity, Robert Claborne Wilson
Masters Theses
Precision agriculture techniques are becoming more popular within the agriculture community as producers demand more return from an ever-decreasing amount of farmland. Increased environmental regulations are forcing farmers to reduce the input of fertilizers and agrochemicals on their crops. Innovative techniques in precision agriculture are enhancing traditional decision-making processes by offering multiple layers of data for a production field. It is difficult to determine the complex interactions that exist between factors affecting crop growth and the resultant management decisions. Strategies in precision agriculture attempt to modify customary practices in order to address the known variability of field conditions. This case …