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Hay Transportation For Isu Beef Nutrition Research Farm, Keaton Stoll, Jase Jordan, Levi Eden, Kyle Post, Michael Anderson, Jacek A. Koziel 2020 Iowa State University

Hay Transportation For Isu Beef Nutrition Research Farm, Keaton Stoll, Jase Jordan, Levi Eden, Kyle Post, Michael Anderson, Jacek A. Koziel

TSM 416 Technology Capstone Projects

o The ISU Beef Nutrition Research Farm cares for hundreds of cattle annually. The farm is a foundation for developing and studying animal husbandry practices. The results of practices used at the farm provide information to Iowa farmers via Extension for optimal health, growth, and profitability of cattle.

o A major part of the bovine diet is forage/roughage. A popular method of satisfying this nutritional requirement involves baling alfalfa hay to store and ration to cattle. Before baling can take place, the hay must be cut and allowed to dry. When the hay has reached an appropriate moisture content ...


Modeling Construction Site Erosion Using Geowepp, Mattea Contreras, Michael Anderson, Jacek A. Koziel 2020 Iowa State University

Modeling Construction Site Erosion Using Geowepp, Mattea Contreras, Michael Anderson, Jacek A. Koziel

TSM 416 Technology Capstone Projects

The Environmental Health and Safety Storm Water Program has used the RUSLE2 model for many years to quantify success by measuring the effectiveness of the ISU campus Storm Water Management Program. RUSLE2 provided estimates of the soil loss prevented by implementing Best Management Practices (BMPs) specified in the Iowa Statewide Urban Design and Specifications for construction sites. ISU reports these estimates to the Iowa Department of Natural Resources each year in the annual report required by the Municipal Separate Storm Sewer System (MS4) permit. With the development of the newer WEPP (water erosion prediction project) model, it is beneficial to ...


Nutrient Storage Cover, Hunter Kvistad, Brent Raver, Owen Oeltjenbruns, Michael Anderson, Jacek A. Koziel 2020 Iowa State University

Nutrient Storage Cover, Hunter Kvistad, Brent Raver, Owen Oeltjenbruns, Michael Anderson, Jacek A. Koziel

TSM 416 Technology Capstone Projects

Smithfield Hog Production has processing facilities throughout the state of Iowa as well as contract finishing sites where producers grow out their swine. The hog manure from these sites is pumped into a slurry store for storage until it can be pumped onto the fields in the spring or fall. The slurry stores stand 19-feet-tall, have a diameter of 120-feet, and hold 1.2-million-gallons of manure. The slurry stores have no cover so they are open to all weather like rain and snow.

Most years, evaporation does not equal precipitation which results in a decreased manure holding capacity and an ...


Capturing Spatial Variability In Maize And Soybean Using Stationary Sensor Nodes, Jasreman Singh, Derek M. Heeren, Yufeng Ge, Geng Bai 2020 University of Nebraska-Lincoln

Capturing Spatial Variability In Maize And Soybean Using Stationary Sensor Nodes, Jasreman Singh, Derek M. Heeren, Yufeng Ge, Geng Bai

Biological Systems Engineering: Papers and Publications

• Irrigation in agriculture maximizes crop yield and improves food security globally • Irrigation scheduling is strongly based on the ability to accurately estimate the appropriate amount and timing of water application • The timing of the irrigation can best be informed through the crop canopy stress, and the amount of irrigation is informed through soil moisture depletion

• Developing upper (non-water stressed) and lower (non-transpiring) baselines for irrigated and non-irrigated maize and soybean • Investigating the relationship between the canopy stress and the soil moisture stress

The canopy temperature stress and soil moisture depletion had stronger correlation for non-irrigated treatments in soybean than maize


Fate And Transport Of Antibiotics And Antibiotic Resistance Genes In Runoff And Soil As Affected By The Timing Of Swine Manure Slurry Application, Renys Enrique Barrios, Himanshu Khuntia, Shannon L. Bartelt-Hunt, John E. Gilley, Amy M. Schmidt Schmidt, Daniel D. Snow, Xu Li 2020 University of Nebraska-Lincoln

Fate And Transport Of Antibiotics And Antibiotic Resistance Genes In Runoff And Soil As Affected By The Timing Of Swine Manure Slurry Application, Renys Enrique Barrios, Himanshu Khuntia, Shannon L. Bartelt-Hunt, John E. Gilley, Amy M. Schmidt Schmidt, Daniel D. Snow, Xu Li

Civil and Environmental Engineering Faculty Publications

Land application of swine manure slurry is a common practice to supplement nutrients to soil for crop production. This practice can introduce antibiotic residues and antibiotic resistance genes (ARGs) into the environment. Field testing is critical in identifying manure management practices effective in minimizing the environmental impacts of manure-borne antibiotic and ARGs. The objective of this study was to determine how the timing of swine manure application relative to rainfall events impacts the fate and transport of antibiotics and ARGs in surface runoff and manure-amended soil. Swine manure slurry was either broadcast or injected on test plots in the field ...


Evidence Of Arithmetical Uncertainty In Estimation Of Light And Water Use Efficiency, Meetpal S. Kukal, Suat Irmak Dr. 2020 University of Nebraska-Lincoln

Evidence Of Arithmetical Uncertainty In Estimation Of Light And Water Use Efficiency, Meetpal S. Kukal, Suat Irmak Dr.

Biological Systems Engineering: Papers and Publications

It was demonstrated that conventional resource use efficiency (RUE) estimation methodology is largely subject to arithmetic weakness. Extensive field research data on aboveground biomass (AGB), absorbed photosynthetically active radiation (APAR), and crop evapotranspiration (ETc) in maize, soybean, sorghum, and winter wheat confirmed this methodological bias for light use efficiency (LUE) and water use efficiency (WUE) estimation. LUE and WUE were derived using cumulated (data aggregates across samplings) and independent (data increments across samplings) approaches. Use of cumulated data yielded strong-but-false correlation between AGB and APAR or Etc, being a statistical artefact. RUE values from an independent (data increments across samplings ...


Effects Of Uv-A Light Treatment On Ammonia, Hydrogen Sulfide, Greenhouse Gases, And Ozone In Simulated Poultry Barn Conditions, Myeongseong Lee, Jisoo Wi, Jacek A. Koziel, Heekwon Ahn, Peiyang Li, Baitong Chen, Zhanibek Meiirkhanuly, Chumki Banik, William S. Jenks 2020 Iowa State University and Chungnam National University

Effects Of Uv-A Light Treatment On Ammonia, Hydrogen Sulfide, Greenhouse Gases, And Ozone In Simulated Poultry Barn Conditions, Myeongseong Lee, Jisoo Wi, Jacek A. Koziel, Heekwon Ahn, Peiyang Li, Baitong Chen, Zhanibek Meiirkhanuly, Chumki Banik, William S. Jenks

Agricultural and Biosystems Engineering Publications

Gaseous emissions, a side effect of livestock and poultry production, need to be mitigated to improve sustainability. Emissions of ammonia (NH3), hydrogen sulfide (H2S), greenhouse gases (GHGs), and odorous volatile organic compounds (VOCs) have a detrimental effect on the environment, climate, and quality of life in rural communities. We are building on previous research to bring advanced oxidation technologies from the lab to the farm. To date, we have shown that ultraviolet A (UV-A) has the potential to mitigate selected odorous gases and GHGs in the context of swine production. Much less research on emissions mitigation has been conducted in ...


Predicting Escherichia Coli Loads In Cascading Dams With Machine Learning: An Integration Of Hydrometeorology, Animal Density And Grazing Pattern, Olufemi P. Abimbola, Aaron R. Mittelstet, Tiffany Messer, Elaine D. Berry, Shannon L. Bartelt-Hunt, Samuel Hansen 2020 University of Nebraska-Lincoln

Predicting Escherichia Coli Loads In Cascading Dams With Machine Learning: An Integration Of Hydrometeorology, Animal Density And Grazing Pattern, Olufemi P. Abimbola, Aaron R. Mittelstet, Tiffany Messer, Elaine D. Berry, Shannon L. Bartelt-Hunt, Samuel Hansen

Biological Systems Engineering: Papers and Publications

Accurate prediction of Escherichia coli contamination in surface waters is challenging due to considerable uncertainty in the physical, chemical and biological variables that control E. coli occurrence and sources in surface waters. This study proposes a novel approach by integrating hydro-climatic variables as well as animal density and grazing pattern in the feature selection modeling phase to increase E. coli prediction accuracy for two cascading dams at the USMeat Animal Research Center (USMARC), Nebraska. Predictive models were developed using regression techniques and an artificial neural network (ANN). Two adaptive neuro-fuzzy inference system (ANFIS) structures including subtractive clustering and fuzzy c-means ...


Complete Issue, Volume 3, Issue 1, 2020 University of Central Florida

Complete Issue, Volume 3, Issue 1

Journal of International Crisis and Risk Communication Research

This is the complete issue of JICRCR Volume 3, Issue 1.


An Environmental And Economic Analysis Of Flocculation Technology Applied To A Corn-Based Ethanol Plant, Maria C. T. B. Oliveira, Kurt A. Rosentrater 2020 Iowa State University

An Environmental And Economic Analysis Of Flocculation Technology Applied To A Corn-Based Ethanol Plant, Maria C. T. B. Oliveira, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

The stimulation of renewable fuel production is related to the environmental issues resulting from the extraction and utilization of fossil fuels. Although corn-based ethanol is one of the leading renewable fuels and promises to mitigate these environmental impacts, it generates large volumes of wastewater with high concentrations of organic material (CODcr > 30,000 mg/L) and low pH (3.5–4.5), which leads to serious environmental concerns. A common method of treatment of distillery wastewater is the Dry Distilled Grain Soluble (DDGS) process, which separates liquid and solid fractions; however, a disadvantage of this process is its high ...


Thoroughbred Racehorse Welfare Through The Lens Of ‘Social License To Operate—With An Emphasis On A U.S. Perspective, Camie Heleski, C. Jill Stowe, Julie Fiedler, Michael L. Peterson, Colleen Brady, Carissa Wickens, James N. MacLeod 2020 University of Kentucky

Thoroughbred Racehorse Welfare Through The Lens Of ‘Social License To Operate—With An Emphasis On A U.S. Perspective, Camie Heleski, C. Jill Stowe, Julie Fiedler, Michael L. Peterson, Colleen Brady, Carissa Wickens, James N. Macleod

Agricultural Economics Faculty Publications

This review addresses the question of whether Thoroughbred horse racing is sustainable in the context of current social values. A recently acknowledged framework, known as ‘Social License to Operate’ (SLO), provides us with a lens through which to view and assess racehorse welfare. In multiple surveys of the general public, the horse owning public, and university students, the primary topics of concern regarding Thoroughbred racing show considerable concordance: concern about catastrophic injuries—particularly as related to track surfaces, concern over the racing of two-year-olds, whip use by jockeys, drug/medication policies, and aftercare opportunities for retired Thoroughbred racehorses. Legitimacy of ...


Effects Of Farrowing Stall Layout And Number Of Heat Lamps On Sow And Piglet Production Performance, Suzanne M. Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, Somak Dutta, Gary A. Rohrer 2020 Iowa State University

Effects Of Farrowing Stall Layout And Number Of Heat Lamps On Sow And Piglet Production Performance, Suzanne M. Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, Somak Dutta, Gary A. Rohrer

Agricultural and Biosystems Engineering Publications

Most farrowing facilities in the United States use stalls and heat lamps to improve sow and piglet productivity. This study investigated these factors by comparing production outcomes for three different farrowing stall layouts (traditional, expanded creep area, expanded sow area) and use of one or two heat lamps. Data were collected on 427 sows and their litters over one year. Results showed no statistical differences due to experimental treatment for any of the production metrics recorded, excluding percent stillborn. Parity one sows had fewer piglets born alive (p < 0.001), lower percent mortality (p = 0.001) and over-lay (p = 0.003), and a greater number of piglets weaned (p < 0.001) with lower average daily weight gain (ADG) (p < 0.001) and more uniform litters (p = 0.001) as compared to higher parity sows. Farrowing turn, associated with group/seasonal changes, had a significant impact on most of the production metrics measured. Number of piglets born influenced the percent stillborn (p < 0.001). Adjusted litter size had a significant impact on percent mortality (p < 0.001), percent over-lay (p < 0.001), and number of piglets weaned (p < 0.001). As the number of piglets weaned per litter increased, both piglet ADG and litter uniformity decreased (p < 0.001). This information can be used to guide producers in farrowing facility design.


A Technoeconomic Platform For Early-Stage Process Design And Cost Estimation Of Joint Fermentative‒Catalytic Bioprocessing, Mothi Bharath Viswanathan, D. Raj Raman, Kurt A. Rosentrater, Brent H. Shanks 2020 Iowa State University

A Technoeconomic Platform For Early-Stage Process Design And Cost Estimation Of Joint Fermentative‒Catalytic Bioprocessing, Mothi Bharath Viswanathan, D. Raj Raman, Kurt A. Rosentrater, Brent H. Shanks

Chemical and Biological Engineering Publications

Technoeconomic analyses using established tools such as SuperPro Designer® require a level of detail that is typically unavailable at the early stage of process evaluation. To facilitate this, members of our group previously created a spreadsheet-based process modeling and technoeconomic platform explicitly aimed at joint fermentative‒catalytic biorefinery processes. In this work, we detail the reorganization and expansion of this model—ESTEA2 (Early State Technoeconomic Analysis, version 2), including detailed design and cost calculations for new unit operations. Furthermore, we describe ESTEA2 validation using ethanol and sorbic acid process. The results were compared with estimates from the literature, SuperPro Designer ...


A Greenhouse Gas Emissions Inventory For Nebraska: Livestock And Coal Loom Large, Eric Holley, Adam Liska 2020 University of Nebraska-Lincoln

A Greenhouse Gas Emissions Inventory For Nebraska: Livestock And Coal Loom Large, Eric Holley, Adam Liska

Adam Liska Papers

Mitigation of climate change requires the systematic identification and cataloging of emissions sources at city, state, and national levels. In this study, an inventory of annual greenhouse gas emissions from the state of Nebraska was created based on industry data, and emissions inventories were completed each year from 1990 to 2016. Nebraska’s net emissions were found to increase from 56.2 million metric tons of carbon dioxide equivalents (MMtCO2e) in 1990 to 87.4 MMtCO2e in 2016. Agriculture was found to be the sector with the most emissions (36 MMtCO2e) followed by electricity ...


Lack Of Interactive Effects Between Diet Composition Or Acid Addition With Drying Method On Amino Acid Digestibility Values In Porcine Ileal Digesta, Brian Kerr, Shelby M. Curry, Brett C. Ramirez 2020 United States Department of Agriculture

Lack Of Interactive Effects Between Diet Composition Or Acid Addition With Drying Method On Amino Acid Digestibility Values In Porcine Ileal Digesta, Brian Kerr, Shelby M. Curry, Brett C. Ramirez

Agricultural and Biosystems Engineering Publications

Two experiments were conducted to determine the effect of oven drying (OD) or freeze drying (FD) on apparent ileal digestibility (AID) of amino acids (AA) in diets fed to pigs. In Exp. 1, 15 barrows (88.4 ± 6.4 kg) were allotted to either a corn starch-soybean meal (CST), potato starch-soybean meal (PST), or corn-soybean meal (CSBM) diet, over 2 collection periods. Following collection, samples were pooled within pig and subdivided into either OD or FD, resulting in 10 observations per diet by drying method combination. In Exp. 2, 11 barrows (63.3 ± 3.8 kg) were fed a CST ...


Cost Assessment Of Five Different Maize Grain Handling Techniques To Reduce Postharvest Losses From Insect Contamination, Bernard Darfour, Kurt A. Rosentrater 2020 Ghana Atomic Energy Commission

Cost Assessment Of Five Different Maize Grain Handling Techniques To Reduce Postharvest Losses From Insect Contamination, Bernard Darfour, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

Farmers in developing nations encounter high postharvest losses mainly attributable to the lack of modern techniques for threshing, cleaning, grading, and grain storage. Mechanized handling of grain in developing countries is rare, although the technology is effective against insects and pest infestations. The objective was to evaluate the cost-effectiveness of five grain handling techniques that have the ability to reduce postharvest losses from insect infestation. The five methods were metal silo plus all accessories (m. silo + acc.), metal silo only (m. silo), woven polypropylene plus phosphine (w. PP. + Phos.), woven polypropylene only (w. PP.), and Purdue Improved Crop Storage bags ...


Stability And Evolution Of Planar And Concave Slopes Under Unsaturated And Rainfall Conditions, Arash Hassanikhah, Eric C. Drumm 2020 University of Tennessee, Knoxville

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 ...


Modeling Soil Forces On A Rotating Tine Mechanism In Artificial Soil, Safal Kshetri, Brian L. Steward, Mehari Tekeste 2020 Iowa State University

Modeling Soil Forces On A Rotating Tine Mechanism In Artificial Soil, Safal Kshetri, Brian L. Steward, Mehari Tekeste

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Understanding soil-tool interaction can enable better maneuvering of weeding tools to achieve higher weeding efficacy. The interaction between vertical tine of a rotating tine mechanism and soil was investigated using a mathematical model that estimated forces on a tine of a rotating tine mechanism operating at different linear and rotational velocities. The kinematics associated with linear and rotational velocities of a rotating tine mechanism were modelled, and the magnitude of shearing and inertial forces were estimated. A soil bin experiment was conducted using artificial soil with one tine to estimate the shear and inertial force coefficient values. Experimental conditions were ...


A Quantitative Model To Characterize Granular Flow Behavior – A Measure Of Grain Layer Mixing In Storage Facilities, Heather H. Tenboer, Gretchen A. Mosher, Charles R. Hurburgh 2020 Iowa State University

A Quantitative Model To Characterize Granular Flow Behavior – A Measure Of Grain Layer Mixing In Storage Facilities, Heather H. Tenboer, Gretchen A. Mosher, Charles R. Hurburgh

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Food quality and safety concerns have led to many nations implementing regulation and legislation around acceptable food and feed practices. Traceability systems are one component of food and feed practices that have been a topic of much research in recent years. Traceability tools are useful for ensuring regulations are met and offering metrics for improving company processes. Companies that implement traceability systems reap economic benefits, gain market advantage, and decrease losses from costly food recalls through the ability to more efficiently remove contaminated food from the value chain. Bulk commodities, such as grain, greatly increase the difficulty inherent in designing ...


Phenostereo: A High-Throughput Stereo Vision System For Field-Based Plant Phenotyping-With An Application In Sorghum Stem Diameter Estimation, Lirong Xiang, Lie Tang, Jingyao Gai, Le Wang 2020 Iowa State University

Phenostereo: A High-Throughput Stereo Vision System For Field-Based Plant Phenotyping-With An Application In Sorghum Stem Diameter Estimation, Lirong Xiang, Lie Tang, Jingyao Gai, Le Wang

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

In recent years, three-dimensional (3D) sensing has gained a great interest in plant phenotyping because it can represent the 3D nature of plant architecture. Among all available 3D imaging technologies, stereo vision offers a viable solution due to its high spatial resolution and wide selection of camera modules. However, the performance of in-field stereo imaging for plant phenotyping has been adversely affected by textureless regions and occlusions of plants, and variable outdoor lighting and wind conditions. In this research, a portable stereo imaging module namely PhenoStereo was developed for high-throughput field-based plant phenotyping. PhenoStereo featured a self-contained embedded design, which ...


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