Open Access. Powered by Scholars. Published by Universities.®

Bioresource and Agricultural Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

4393 Full-Text Articles 6223 Authors 806259 Downloads 37 Institutions

All Articles in Bioresource and Agricultural Engineering

Faceted Search

4393 full-text articles. Page 1 of 86.

Rural School Wastewater Treatment System, Parker J. Dulin, Payton M. Smith, James W. Swart 2016 University of Tennessee, Knoxville

Rural School Wastewater Treatment System, Parker J. Dulin, Payton M. Smith, James W. Swart

University of Tennessee Honors Thesis Projects

No abstract provided.


Annual Swine Manure Applications To Soybean Under Corn-Soybean Rotation, Allah Bakhsh, Rameshwar S. Kanwar, James L. Baker, John E. Sawyer, Antonio P. Mallarino 2016 University of Agriculture Faisalabad

Annual Swine Manure Applications To Soybean Under Corn-Soybean Rotation, Allah Bakhsh, Rameshwar S. Kanwar, James L. Baker, John E. Sawyer, Antonio P. Mallarino

John E. Sawyer

The response of a corn-soybean rotation system receiving fall manure application to both corn and soybean is not well understood in terms of its impact on nitrate leaching to subsurface drainage water and crop yields. This field study was conducted from 2001 through 2005 with the key objective of determining the effects of manure application to both corn and soybean on NO3-N concentrations in subsurface drainage water and corn-soybean yields. The study was conducted on 0.4 ha plots instrumented with state-of-the-art subsurface drainage monitoring systems at the Iowa State University research center, Nashua, Iowa. Nitrogen application rates from liquid ...


Application Checkpoints For Fall Ammonia, H. Mark Hanna, John E. Sawyer 2016 Iowa State University

Application Checkpoints For Fall Ammonia, H. Mark Hanna, John E. Sawyer

John E. Sawyer

Depending on postharvest field conditions, some producers will soon be considering anhydrous ammonia application. Using fall labor to apply fertilizer can be attractive but needs to be balanced with the potential for nutrient loss. To avoid conversion of anhydrous ammonia from ammonium to more leachable forms of nitrogen, application should be delayed until average soil temperature is below 50°F and trending lower. Measure the 4-inch soil temperature at near 10 a.m. or 7 p.m. or check Iowa State University's county soil temperatures and forecast.


Impact Of Swine Manure Applications On Nitrate And Phosphorus In Subsurface Drainage Water, Rameshwar S. Kanwar, James L. Baker, Carl H. Pederson, Antonio P. Mallarino, John E. Sawyer, Kenneth T. Pecinovsky 2016 Iowa State University

Impact Of Swine Manure Applications On Nitrate And Phosphorus In Subsurface Drainage Water, Rameshwar S. Kanwar, James L. Baker, Carl H. Pederson, Antonio P. Mallarino, John E. Sawyer, Kenneth T. Pecinovsky

John E. Sawyer

Nonpoint source nutrient pollution related to land application of manures is recognized as an important environmental and social issue for several reasons. First, manure from swine production facilities can have serious impacts on the quality of ground water resources. Second, several states are in the process of creating laws and/or regulations to reduce nitrogen (N) and phosphorus (P) loadings from manure to soil and water resources. Third, pollution of water resources from nutrients supplied by manure to croplands will help set parameters for developing public policies on the management of manure.


Impact Of Swine Manure Application On Water Quality, Rameshwar S. Kanwar, Carl H. Pederson, Matthew J. Helmers, John E. Sawyer, Antonio P. Mallarino 2016 Iowa State University

Impact Of Swine Manure Application On Water Quality, Rameshwar S. Kanwar, Carl H. Pederson, Matthew J. Helmers, John E. Sawyer, Antonio P. Mallarino

John E. Sawyer

Nonpoint source nutrient pollution related to land application of manures is recognized as an important environmental and social issue for several reasons. First,swine manure application to land can impact water quality. Second, several states are in the process of creating laws and/or regulations to reduce nitrogen and phosphorus loadings from manure to soil and water resources. Third, the quality of water resources will help set parameters for developing public policies on management of manure.


Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna 2016 Iowa State University

Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna

william edwards

Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.


Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers 2016 CNH America

Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers

william edwards

A combine harvester econometric simulation model was developed with the goal of matching the combine forward speed to the maximum harvested net income per acre. The model considers the machinery management costs of owning a combine and platform header for harvesting wheat. A statistical Design of Experiment (DOE) was used to evaluate the model using tri-level variables; the medium values constituted the model base case. Of the 27 input variables, the optimum speed was significantly influenced by the crop area, G/MOG ratio, grain unit price, field yield, field efficiency, grain moisture content, probability of a working day in the ...


Effects Of Biodiesel On Plastics, David A. Grewell, Tong Wang, Melissa Montalbo-Lomboy, Linxing Yao, Paul Gramann, Javier Cruz 2016 Iowa State University

Effects Of Biodiesel On Plastics, David A. Grewell, Tong Wang, Melissa Montalbo-Lomboy, Linxing Yao, Paul Gramann, Javier Cruz

Tong Wang

Many chemicals have the ability to attack on plastics as solvents and can lead to failure. In some cases, the source of the solvent is not well defined. In this study, the effect of biodiesel, a fatty acid methyl ester, on various plastics, namely polyamide 6 (PA 6), polycarbonate (PC), acrylonitrile-butadiene- styrene (ABS) and ABS/PC plastic blends was studied. Various feedstocks of biodiesel were also studied, including, soy bean oil (new and used), animal fat (tallow), corn oil as well as choice white grease. The plastics samples were tested under ASTM standard where a predefined strain is applied to ...


Automatic Recognition Of Lactating Sow Behaviors Through Depth Image Processing, F. Lao, T. Brown-Brandt, J. P. Stinn, K. Liu, G. Teng, H. Xin 2016 China Agricultural University

Automatic Recognition Of Lactating Sow Behaviors Through Depth Image Processing, F. Lao, T. Brown-Brandt, J. P. Stinn, K. Liu, G. Teng, H. Xin

Agricultural and Biosystems Engineering Publications

Manual observation and classification of animal behaviors is laborious, time-consuming, and of limited ability to process large amount of data. A computer vision-based system was developed that automatically recognizes sow behaviors (lying, sitting, standing, kneeling, feeding, drinking, and shifting) in farrowing crate. The system consisted of a low-cost 3D camera that simultaneously acquires digital and depth images and a software program that detects and identifies the sow’s behaviors. This paper describes the computational algorithm for the analysis of depth images and presents its performance in recognizing the sow’s behaviors as compared to manual recognition. The images were acquired ...


Carbon Nanotubes Affect The Toxicity Of Cuo Nanoparticles To Denitrification In Marine Sediments By Altering Cellular Internalization Of Nanoparticle, Xiong Zheng, Yinglong Su, Yinguang Chen, Rui Wan, Mu Li, Haining Huang, Xu Li 2016 Tongji University, Shanghai, China

Carbon Nanotubes Affect The Toxicity Of Cuo Nanoparticles To Denitrification In Marine Sediments By Altering Cellular Internalization Of Nanoparticle, Xiong Zheng, Yinglong Su, Yinguang Chen, Rui Wan, Mu Li, Haining Huang, Xu Li

Civil Engineering Faculty Publications

Denitrification is an important pathway for nitrate transformation in marine sediments, and this process has been observed to be negatively affected by engineered nanomaterials. However, previous studies only focused on the potential effect of a certain type of nanomaterial on microbial denitrification. Here we show that the toxicity of CuO nanoparticles (NPs) to denitrification in marine sediments is highly affected by the presence of carbon nanotubes (CNTs). It was found that the removal efficiency of total NOX-N (NO3-N and NO2-N) in the presence of CuO NPs was only 62.3%, but it increased to ...


Crop Selection, Cost Analysis, And Irrigation System Design For The Replanting Of A Nut Orchard, Maximilian Bricker 2016 California Polytechnic State University, San Luis Obispo

Crop Selection, Cost Analysis, And Irrigation System Design For The Replanting Of A Nut Orchard, Maximilian Bricker

BioResource and Agricultural Engineering

This report was made to help the landowner of Bricker Farms make decisions regarding the replanting of his orchard. The decisions that need to be made in this process include: which crop to plant, how to plant it, and how to improve the distribution uniformity of irrigation water on the orchard. The report does not give definitive final decisions, but presents viable options that the landowner can utilize when deciding. In addition to the options that are presented, the report offers suggestions to the landowner so that the replanting process is done properly in a timely and economically-friendly manner.


Design Of A Drip Irrigation System For 80 Acres Of Almonds In Arbuckle, California, Alexander E. Marsh 2016 California Polytechnic State University, San Luis Obispo

Design Of A Drip Irrigation System For 80 Acres Of Almonds In Arbuckle, California, Alexander E. Marsh

BioResource and Agricultural Engineering

This senior project discusses the detailed steps and calculations involved with the design of a dual line buried drip irrigation system. The system is specifically for an 80 acre orchard of almonds in Arbuckle, California. The new design distribution uniformity of the design in 0.92.


The Design And Construction Of A Rear Bumper With Incorporated Spare Tire Rack, Alan C. Isaacson 2016 California Polytechnic State University, San Luis Obispo

The Design And Construction Of A Rear Bumper With Incorporated Spare Tire Rack, Alan C. Isaacson

BioResource and Agricultural Engineering

This senior project outlines the design and construction of a rear bumper with incorporated spare tire and equipment rack for a 1946 Willys CJ2A Jeep. The spare tire rack is capable of swinging out away from the vehicle to allow for the use of the vehicle’s tailgate. The bumper was designed for strength, functionality and aesthetic qualities alike. Additionally, the bumper design considered all vehicle codes and regulations.


Design And Testing Of An Autonomous Ground Robot For Agricultural Applications, Lukas L. Hannemann 2016 California Polytechnic State University, San Luis Obispo

Design And Testing Of An Autonomous Ground Robot For Agricultural Applications, Lukas L. Hannemann

BioResource and Agricultural Engineering

This senior project discusses the design and testing of an autonomous ground robot for agricultural applications such as strawberries. The vehicle will feature a robotic arm that will be programmed to perform various tasks, such as collecting soil and leaf samples of the crop or measuring soil moisture and salinity. Various components were chosen to be implemented on the vehicle due its power requirements and operating environment. Finite Element Analysis testing was done on the frame of the vehicle to ensure the adequacy of the design.


Design, Construction, And Evaluation Of A Gas Forge, Spencer M. Davis 2016 California Polytechnic State University, San Luis Obispo

Design, Construction, And Evaluation Of A Gas Forge, Spencer M. Davis

BioResource and Agricultural Engineering

This report covers the design, construction, and evaluation of a propane forge. The purpose for building this propane forge was to replace an old charcoal forge in order to improve upon certain points of performance such as adjustability of heat, portability, and fuel cost by being able to run the forge for any amount of time with an easy on/off control. The design of this forge consisted of a steel pipe body insulated with ceramic fiber blanket, and was heated by a single atmospheric burner.


Testing Feasibility Of Inductive Power Coupling For Modern Applications, Andrew Burman 2016 California Polytechnic State University, San Luis Obispo

Testing Feasibility Of Inductive Power Coupling For Modern Applications, Andrew Burman

BioResource and Agricultural Engineering

This project takes two bifilar tesla coils and uses them to find a % efficiency of power transfer as distances between the coils decrease. The reason this experiment is being conducted is to find possible implications for wireless charging of vehicles using similar style coils. This project conducted experiments on 60 Hz, 400 Hz, and 1 kHz frequencies for a small input signal. The general conclusion is that as the frequency increases more power can be transferred and higher efficiency of power transfer is seen. This project also concluded that it could be possible to get higher efficiency at a greater ...


Summary Of Performance Data For Technologies To Control Gaseous, Odor, And Particulate Emissions From Livestock Operations: Air Management Practices Assessment Tool (Ampat), Devin L. Maurer, Jacek A. Koziel, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz, Daniel S. Andersen 2016 Iowa State University

Summary Of Performance Data For Technologies To Control Gaseous, Odor, And Particulate Emissions From Livestock Operations: Air Management Practices Assessment Tool (Ampat), Devin L. Maurer, Jacek A. Koziel, Jay D. Harmon, Steven J. Hoff, Angela M. Rieck-Hinz, Daniel S. Andersen

Agricultural and Biosystems Engineering Publications

The livestock and poultry production industry, regulatory agencies, and researchers lack a current, science-based guide and data base for evaluation of air quality mitigation technologies. Data collected from science-based review of mitigation technologies using practical, stakeholders-oriented evaluation criteria to identify knowledge gaps/needs and focuses for future research efforts on technologies and areas with the greatest impact potential is presented in the Literature Database tab on the air management practices tool (AMPAT). The AMPAT is web-based (available at www.agronext.iastate.edu/ampat) and provides an objective overview of mitigation practices best suited to address odor, gaseous, and particulate matter ...


Evaluating Soil Tillage Practices Using X-Ray Computed Tomography And Conventional Laboratory Methods, Maria Ambert-Sanchez, Steven K. Mickelson, Syed I. Ahmed, Joseph N. Gray, David F. Webber 2016 Peace Corps

Evaluating Soil Tillage Practices Using X-Ray Computed Tomography And Conventional Laboratory Methods, Maria Ambert-Sanchez, Steven K. Mickelson, Syed I. Ahmed, Joseph N. Gray, David F. Webber

Steven K. Mickelson

Using x-ray computed tomography (CT) for non-destructive 3-D imaging and analysis of soil physical properties has been investigated for over 30 years. However, applying this system in soil science has remained a specialized research area using primarily low-resolution medical-grade x-ray CT units that were not designed for soil analysis applications. The main research objectives were to characterize and compare physical properties of soil core samples from long-term chisel plow (CP) and no-till (NT) agricultural field management sites using a high-resolution industrial-grade x-ray CT unit and two conventional soil laboratory method (SLM) soil macroporosity analysis procedures. Field research activities during 1999 ...


Successful Strategies For Engaging Community Colleges And Universities In Transfer Partnership, Marcia R. Laugerman, Diane T. Rover, Steven K. Mickelson, Mack C. Shelley, Kari Hensen 2016 University of Iowa

Successful Strategies For Engaging Community Colleges And Universities In Transfer Partnership, Marcia R. Laugerman, Diane T. Rover, Steven K. Mickelson, Mack C. Shelley, Kari Hensen

Steven K. Mickelson

In order to increase the number of students (U.S. citizens or permanent residents) receiving associate or baccalaureate degrees in established or emerging fields within science, technology, engineering, and mathematics (STEM), the National Science Foundation (NSF) established the Science, Technology, Engineering, and Mathematics Talent Expansion Program (STEP).

The Student Enrollment and Engagement through Connections (SEEC) project is a collaboration between Iowa State University (ISU) and Des Moines Area Community College (DMACC) funded by a STEP grant to increase the number of students graduating with a bachelor's degree in engineering at ISU and the number of students in pre-engineering study ...


Holistic Student Professional Development And Assessment: A Backward Design Approach, Jacqulyn A. Baughman, Thomas J. Brumm, Steven K. Mickelson 2016 Iowa State University

Holistic Student Professional Development And Assessment: A Backward Design Approach, Jacqulyn A. Baughman, Thomas J. Brumm, Steven K. Mickelson

Steven K. Mickelson

No abstract provided.


Digital Commons powered by bepress