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Full-Text Articles in Engineering

Poultry Farm Security Gate: Autonomous Vehicle Recognition System, Kaitlyn M. Nelms, Mary A. Morris May 2020

Poultry Farm Security Gate: Autonomous Vehicle Recognition System, Kaitlyn M. Nelms, Mary A. Morris

Biosystems Engineering and Soil Science Publications and Other Works

This project addresses the lack of security on access roads to broiler poultry farms in Tennessee by creating a system that autonomously recognizes vehicles as they approach the farm property. Many of these farms lack gates with proper security, making them vulnerable to vandalism and risking their biosecurity. Allowing all feed trucks entry to the farms is a vital requirement of the design in order to avoid interrupting operations on the farm. To address this issue, this project utilizes a combination of automated license plate reading software and light detection and ranging sensors (LiDAR) to autonomously recognize a vehicle and …


Stability And Evolution Of Planar And Concave Slopes Under Unsaturated And Rainfall Conditions, Arash Hassanikhah, Eric C. Drumm Jan 2020

Stability And Evolution Of Planar And Concave Slopes Under Unsaturated And Rainfall Conditions, Arash Hassanikhah, Eric C. Drumm

Biosystems Engineering and Soil Science Publications and Other Works

Natural slopes are often observed to have a concave, convex, or a combination concave/convex profile, yet constructed slopes are traditionally designed with planar cross-sectional geometry. In this paper, the stability of two planar slopes was compared with that of companion concave slopes, designed to have similar factors of safety (FOS) under gravity loading. The stability of these slopes was then investigated in response to a suction event followed by a precipitation event, and it was shown that both the planar and the concave slopes experienced similar changes in stability. Additional analyses were conducted with a simulated erosion mechanism to investigate …


Applications Of Optimization Modeling In Multi-Disciplinary Engineering Research, Anton F. Astner, Ekramul Haque Ehite, Yang Li, Colin Sasthav Apr 2019

Applications Of Optimization Modeling In Multi-Disciplinary Engineering Research, Anton F. Astner, Ekramul Haque Ehite, Yang Li, Colin Sasthav

Biosystems Engineering and Soil Science Publications and Other Works

Optimization modeling is the process of selection of the best solution to a design problem using predetermined constraints from a set of prospective solutions. Increased computing power has made optimization solvers readily available for business/research needs. For example, Microsoft Excel has a simple, but robust solver. Such solvers can model linear, nonlinear, and integer programming problems that are limited in size. This study shows the use of the optimization model solvers in various research contexts.


Bowen Ratio Energy Balance Measurement Of Carbon Dioxide (Co2) Fluxes Of No-Till And Conventional Tillage Agriculture In Lesotho, Debra Blumberg O'Dell, Thomas J. Sauer, Bruce B. Hicks, Dayton M. Lambert, David R. Smith, Wendy Bruns, August Basson, Makoala V. Marake, Forbes Walker, Michael D. Wilcox Jr., Neal Samuel Eash Feb 2014

Bowen Ratio Energy Balance Measurement Of Carbon Dioxide (Co2) Fluxes Of No-Till And Conventional Tillage Agriculture In Lesotho, Debra Blumberg O'Dell, Thomas J. Sauer, Bruce B. Hicks, Dayton M. Lambert, David R. Smith, Wendy Bruns, August Basson, Makoala V. Marake, Forbes Walker, Michael D. Wilcox Jr., Neal Samuel Eash

Biosystems Engineering and Soil Science Publications and Other Works

Global food demand requires that soils be used intensively for agriculture, but how these soils are managed greatly impacts soil fluxes of carbon dioxide (CO2). Soil management practices can cause carbon to be either sequestered or emitted, with corresponding uncertain influence on atmospheric CO2 concentrations. The situation is further complicated by the lack of CO2 flux measurements for African subsistence farms. For widespread application in remote areas, a simple experimental methodology is desired. As a first step, the present study investigated the use of Bowen Ratio Energy Balance (BREB) instrumentation to measure the energy balance and …