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Theses/Dissertations from 2012

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Academic and Social Integration Variables Influencing the Success of Community College Transfer Students in Undergraduate Engineering Programs, Marcia Rae Laugerman

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Method to partition between freely suspended Escherichia coli and Escherichia coli attached to clay particles, Xiao Liang

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Soil Hydraulic Property Impacts of Incorporating Prairie Vegetation within a Row Crop Production Area, Delise Rae Lockett

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Investigation of torrefaction process parameters and characterization of torrefied biomass, Dorde Medic

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Real time variable rate stover collection control system on a single pass dual stream biomass harvester controlling for erosion and organic matter, Daniel Kent Murray

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Impacts of long-term application of poultry manure on subsurface drain water quality, Huy Quang Nguyen

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Active combine speed control for relative positioning of a grain cart, Alex Jon Nykamp

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Modeling In- Stream Escherichia coli Concentrations, Pramod K. Pandey

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Geographic information system tools for the analysis of commercial level multi-pass corn stover harvesting systems, Kevin Scott Peyton

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Design and assessment of an automated grain auger position control system, Benjamin Charles Potter

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Characterization and Measurement of Corn Stover Material Properties, Brittany Nicole Schon

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Using topographic and soils data to understand and predict field scale soil moisture patterns, Zachary James Van Arkel

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Mechanical characterization of commercial biodegradable plastic films, Joseph Robert Vanstrom

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Photonanocatalyst Aided Alkaline Pretreatment and Raman Spectroscopic Characterization of Corn Stover Biomass, Chao Wang

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root zone water quality and soil moisture dynamics of biomass cropping systems and landscape positions, Wade Welsh

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Reducing losses to maize stored on farms in East Africa using hermetic storage, Ali Yakubu

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Pretreatment and fractionation of lignocellulosic biomass for production of biofuel and value-added products, Chang Geun Yoo

Theses/Dissertations from 2011

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Evaluation and application of a dynamic emissions chamber for quantifying gaseous emissions from laying hen manure, Ricardo Rafael Acevedo Perez

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Examining firefighter decision making process and choice in virtual reality, Shawn T. Bayouth

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Properties and bulk drying of biomass, Ahmad Safuan Bin Bujang

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The Development of an On-line RFID-based Facility Performance Monitoring System, Kuen-min Chen

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Estimation of change in soil water nitrate-nitrogen concentration using impedance spectra, Giorgi Chighladze

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Cost structures and life cycle impacts of algal biomass and biofuel production, Katrina Lea Christiansen

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Design and performance of denitrification bioreactors for agricultural drainage, Laura Elizabeth Christianson

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Comparison and analysis of biobased/biodegradable and petrochemical cutlery flexibility, Brian J. Demmer

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Single seed discriminative applications using near infrared technologies, Lidia Esteve Agelet

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Developing models for analyzing cost structures in fermentative bioprocesses, Carol Rose Faulhaber

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Assimilating in situ soil moisture measurements into the DSSAT-CSM using a Kalman filter, Derek Gene Groenendyk

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Exploring factors affecting part-time students academic success in Malaysian polytechnic institutions, Norhayati Ibrahim

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An automated nozzle controller for self-propelled sprayers, John Phillip Kruckeberg

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Measurement and analysis of the relationship between employee perceptions and safety and quality decision-making in the country grain elevator, Gretchen Ann Mosher

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Identifiability analysis of a tractor and single axle towed implement model, Simon Leroy Nielsen

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Storability of modified wet distillers grains with solubles, Guevara Che Nyendu

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Impacts of feeding dried distillers grains with solubles on aerial emissions when fed to swine, Laura M. Pepple

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Analyses of bioenergy systems: detecting hard-coding errors in spreadsheets, and comparing biofuel cropping systems, Vertika Rawat

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A scale-up procedure for substrate co-digestion in anaerobic digesters through the use of substrate characterization, BMPs, ATAs, and sub pilot-scale digesters, Steven Thomas Sell

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Investigation of Ultrasonics as a tool for energy efficient recycling of Lactic acid from postconsumer PLA products, Gowrishankar Srinivasan

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Characterization of the Impact of Process Variables on the Densification of Corn Stover, Curtis Peder Thoreson

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Single-pass corn stover harvest system productivity and cost analysis, Keith Webster

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Chemical Safety Training: Lessons Learned from a Model for Evaluating Effectiveness, James Hale Withers

Theses/Dissertations from 2010

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Enhancing video game performance through an individualized biocybernetic system, Ross Bohner

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Evaluating the cost and performance of vegetative treatment systems on open beef feedlots in the Midwestern United States, Bradley J. Bond

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Corncob dry matter loss in storage as affected by temperature and moisture content, Bernardo Gusman Del Campo

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Food Traceability Information Modeling and Data Exchange and GIS Based Farm Traceability Model Design and Application, Hafize Gunsu Gemesi

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Occurrence of tylosin-resistant enterococci in swine manure and tile drainage systems under no-till management, Trang Thi Thu Hoang

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Integration of a cob separation system into a biomass harvesting combine, Jeremiah Kingsley Johnson

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Bioethanol production from lignocellulosic feedstock using aqueous ammonia pretreatment and simultaneous saccharification and fermentation (SSF): process development and optimization, Xuan Li

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Design and Evaluation of Variable Rate Stover Collection Control System For a Single Pass Dual Stream Biomass Harvester System, Robert Paul Mcnaull

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Ammonia emissions, feeding and defecation dynamics of W36 pullets and laying hens as affected by stocking density and manure accumulation time, Luciano Barreto Mendes

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Soil erosion prediction for shaping conservation policy and practice, James Kenneth Newman

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Long-term effects of land application of poultry manure on crop production, and soil and water quality under a corn-soybean rotation system in Iowa, Huy Quang Nguyen

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Measurement of soil-tire interface stresses, Jonathan Tate Roth

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Computational intelligence and transient thermal analysis methods for exploratory analysis of source air quality, Gang Sun

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Hydrogen sulfide spatial distribution and exposure in deep-pit swine housing, Randy John Swestka

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Operational techniques for implementing traceability in bulk product supply chains, Maitri Thakur

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Using functionalized nanoparticles as sensors for rapid monitoring of drinking water quality, Nan Xiao

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Spatio-temporal patterns of field-scale soil moisture and their implications for in situ soil moisture network design, Lingyuan Yang

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Ozone-Based Decolorization of Food Colorants: Characterization and Application to Fruit Leather Recycling, Wenda Zhu

Theses/Dissertations from 2009

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Research in biomass production and utilization: systems simulation and analysis, Albert S. Bennett

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Maize to Milk: An Analysis of the Traceability Systems of Bulk Commodities, Brittini Renee Brown

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Effect of low initial envelope material moisture content on swine tissue degradation in layered livestock mortality composting systems, Benjamin P. Crawford

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Corn stover densification using an auger compactor, Robert D. Franz

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Comparison and analysis of energy consumption in typical Iowa swine finishing systems, John C. Gilbert

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Particle size characterization of ultrasonic treatment of dry milling coproducts for enhanced biofuel production, Cody John Hearn

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Aqueous ammonia soaking (AAS) as a biomass pretreatment method: pilot-scale study with switchgrass, bench-scale use with poplar, and methane potential from anaerobic digestion of pretreated switchgrass, Jennifer Nicole Himmelsbach

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Intra and inter-brand calibration transfer for near infrared spectrometers, Benoit Igne

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Optimal field coverage path planning on 2D and 3D surfaces, Jian Jin

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Modeling, identification and analysis of tractor and single axle towed implement system, Manoj Karkee

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Development of a system for characterizing biomass quality of lignocellulosic feedstocks for biochemical conversion, Patrick Thomas Murphy

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Techno-economic analysis of Di-butyl ketone, Di-methyl furan and Hydroxymethyl furfural production from biomass based resources, Akshay Dilip Patel

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Monitoring and modeling of subsurface drainage and nitrate leaching under various land covers, Zhiming Qi

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The development of a RFID based leanness monitoring system, Brett Shady

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Studies on high power ultrasonic microembossing and organic light emitting diodes (OLEDs) for the creation of lab-on-CD devices for sensor related applications, Srikanth G. Vengasandra

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Techno-Economic Analysis of Single-Pass Maize Biomass Harvest Systems, Yen-nung Wu

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Non-chemical on-farm hermetic maize storage in East Africa, Ali Yakubu

Theses/Dissertations from 2008

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Development of digital elevation models (DEMs) for agricultural applications, Samsuzana Abd Aziz

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Identification, evaluation and quantification of VOCs as biosecure markers of swine carcass degradation, Neslihan Akdeniz

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Social and academic factors of success and retention for students of color at a predominantly white institution in agricultural and engineering based disciplines, LeQuetia Natasha Ancar

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Modeling the performance of runoff control systems on open beef feedlots in Iowa, Daniel S. Andersen

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Development of a high-throughput fermentation assay using colorimetric measurement of gas production, Steven Bly

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Enhancing biodiesel production from soybean oil using ultrasonics, Priyanka Chand

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Mitigating odors from animal facilities using biofilters, Lide Chen

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Nutrient recycling in biofuel production systems: biomass ash pelleting, ethanol co-product allocation, and a beef-ethanol production system analysis, Katherine A. Edwards

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A simulation assessment of the Boone River watershed: baseline calibration/validation results and issues, and future research needs, Philip Walter Gassman

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Gender role conflict, depression, and personality's effect on help seeking behaviors, attitudes, and academic performance, Mary Elizabeth Goodwin

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A systematic evaluation of laying hen housing for improved hen welfare, Angela Renee Green

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Development and modeling of a slope insensitive combine cleaning shoe, James Monroe Hershbarger

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Cellulosic ethanol production via aqueous ammonia soaking pretreatment and simultaneous saccharification and fermentation, Asli Isci

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High throughput fermentation monitoring via bubble detection, Jasjeet Kaur

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Monitoring vegetative treatment system performance for open beef feedlot runoff control, Ishadeep Khanijo

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Ultrasonic pretreatment for enhanced saccharification and fermentation of ethanol production from corn, Melissa Tabada Montalbo-lomboy

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Feeding, defecation and gaseous emission dynamics of W-36 laying hens, Xiaopeng Ning

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Force and moment analysis of stacked counter rotating eccentric mass tree shaker energy-wheel system, Lloyd Dale Snell

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Evaluation of ultrasonic pretreatment on anaerobic digestion of biomass for methane production, Wei Wu-haan

Theses/Dissertations from 2007

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Investigation of roll angle feed-forward control and look-ahead functions to improve automatic guidance on sloped terrain, James Addison Bosserd II

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A full Bayesian assessment of the effect of highway bypasses on crashes, crash rates and citizens' safety in Iowa communities, Lorenzo Cena

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Species and functional diversity effects on productivity and nutrient uptake: implications for designing sustainable agricultural systems in the Midwest, Melissa Renee Cheatham

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Remote characterization of locomotion, grazing and drinking behavior in beef cattle using GPS and ruminant temperature dynamics, Jeremiah DeLayne Davis

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Application of the rollermill and hammermill for biomass fractionation, Mark David Dilts

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The impacts of a formal quality management system: a case study of implementing ISO 9000 at Farmers Cooperative Co., Iowa, Chad Matthew Laux