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Theses/Dissertations from 2020

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Manufacture and characterization of natural fiber biocomposites for automotive application, Cindu Annandarajah

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Active air spring control as a method of agricultural sprayer boom system suspension, Kyle Blaylock

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Monitoring antibiotic resistance in agroecosystems, Phil John Colgan

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NIR hyperspectral imaging for animal feed ingredient applications, Princess Tiffany Galaura Dantes

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Impact of boom height sensor placement and quantity on boom height error, Mark Deutsch

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Increased biosecurity in feed manufacturing through effective hydrothermal treatment and recontamination prevention during drying, cooling and handling, Michelle Ann Friedmann

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Characterization of plant cell wall polysaccharides with surface enhanced Raman spectroscopic imaging, Qing He

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Degradation of sulfamethazine, tetracycline, and tylosin in prairie strip soils and row crop soils, Alyssa Iverson

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Demonstration of the value of a graphics-based decision support system for order picking warehouse design, Steven Kryk

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Study of soil-tine interaction for the application of automated mechanical weeder, Safal Kshetri

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Evaluation of swine gestation-farrowing facility space and management for improving production, welfare, and infectious disease containment, Suzanne M. Leonard

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Synthetic data generation for deep learning model training to understand livestock behavior, Armin Maraghehmoghaddam

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Watershed modeling and random forest flood risk classification of farmed prairie potholes, Brady Nahkala

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Evaluation of deep tillage remediation in a construction easement on soil compaction and crop yield, Erica Rae Neideigh

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Discovering interacting features for prediction of response, Maryam Nikouei Mehr

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Component analysis of fluid power hydraulics for self-propelled sprayer boom control, Jacob Rewerts

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Deep learning for land cover classification and environmental analysis using high-resolution remote sensing data, Vitor Souza Martins

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Physical disturbance as a non-chemical approach to control weevils in stored maize, Mike Sserunjogi

Theses/Dissertations from 2019

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CAN bus technology for agricultural machine management research and undergraduate education, Firas Salim Al-Aani

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A study of soybean processing value maximization using selective handling strategies based on the analysis of soybeans received at Iowa elevators, Bennett Elizabeth Barr

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Improving plant disease recognition with generative adversarial network under limited training set, Luning Bi

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Evaluating the effectiveness of manure additives on mitigation of gaseous emissions from deep pit swine manure., Baitong Chen

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Process planning for iterative, in-envelope hybrid manufacturing in the presence of machining allowances, Jakob Croghan

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Modeling grain storage outflow contamination levels, based upon input time series, Anne E. Dohmen

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The development of a virtual operator model to enable closed-loop, computer-based design, Yu Du

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Simulation of soil-to-tool interaction using Discrete Element Method (DEM) and Multibody Dynamics (MBD) coupling, Sadaf Ghorbani

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Impacts of manure application timing and tillage practices on antibiotic resistant bacteria and genes in drainage water from manured fields, Hannah Elizabeth Guyer

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Computing tool accessibility of polyhedral models for toolpath planning in multi-axis machining, Guangyu Hou

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Short-term operation of the power system and the natural gas system considering uncertainties, Dan Hu

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Decision making under uncertainties for supply chain optimization, Zhengyang Hu

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TRIZ inspired design guidelines for remanufacturing using additive manufacturing, Srujana Kandukuri

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Effects of surface roughness on the reliability of magnetic particle inspection for the detection of subsurface indications in steel castings, Sharon Lau

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In-situ metrology for electrohydrodynamic inkjet printing towards micro/nano scale hybrid manufacturing, Benjamin Lies

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Electrical sensor development for the dielectric properties measurement and moisture content estimation of switchgrass and corn stover, Augusto Cesar Magalhaes de Souza

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Low moisture anhydrous ammonia (LMAA) pretreatment of lignocellulosic biomass and assessments for biobutanol production, Nazira Binti Mahmud

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Evaluating boom height control performance with variable boom roll damping in a suspended boom system on self-propelled sprayers, Evan Mellott

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Evaluation of artistic gymnastics vault board design, Courtney Middelkoop

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An agent-based approach to modeling sustainable sociotechnical systems, Anuj Mittal

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Physical characterization, calibration, and validation methodology for modeling of grains using Discrete Element Method (DEM), Mohammad Mousaviraad

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Comparative assessment of the economic and environmental impacts of food waste fermentation on value-added products, Noor Intan Shafinas Muhammad

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Effect of FDM process parameters on the mechanical properties of CFR-PEEK, Rama Srikar Mutyala

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Catchment-scale export of antibiotic resistance genes and bacteria from an agricultural watershed in central Iowa., Timothy Patrick Neher

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Engineering valuation of blockchain technology in the context of petroleum supply chain: A real options approach, Farshad Niayeshpour

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Behavior, welfare, production and bioenergetics of laying hens in alternative housing systems, Jofran Luiz De Oliveira

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Analyzing and advancing maize and sugarcane biorefinery systems, Maria C. T. B. Oliveira

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Performance archery shooting, Hunter Sabers

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A top-down human-centered approach to exoskeleton design, Thomas Michael Schnieders

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A methodology of calibrating flexible fibers in the discrete element method for simulating wheat straw shear, Matthew W. Schramm

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Development of a standards-based traceability system for the U.S. grain and feed supply chain, Richa Sharma

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A user-centered engineering approach to storage and access in high priority scenarios, Varun Anathasivan Srikrishnan

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A value-focused thinking approach to measuring community resilience, Rohit Suresh

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Optimizing the design of planting experiments for agricultural crops, Ashley Swift

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A robotic proximal sensing platform for in-field high-throughput crop phenotyping, Taylor L. Tuel

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Process generalizations and rules of thumb for scaling up biobased processes, Mothi Bharath Viswanathan

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Maize and sorghum plant detection at early growth stages using proximity laser and time-of-flight sensors, Zhao Yang

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Time-varying optimization using primal-dual type methods: Solution tracking and model training, Yijian Zhang

Theses/Dissertations from 2018

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The implication of rapid technologies on the design process, Esra'a Abdel-All

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Adopting and incorporating crowdsourced traffic data in advanced transportation management systems, Mostafa Amin-Naseri

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Advanced bale weighing with integrated mass yield system for large square balers, Jeffrey Clark Askey

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Automated plant phenotyping using 3D machine vision and robotics, Yin Bao

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A design framework for additive manufacturing based on the integration of axiomatic design approach, inverse problem-solving and an additive manufacturing database, Sarath Chennamkulam Renjith

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Automated process planning for metal hybrid additive and subtractive manufacturing, Niechen Chen

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Evaluating the impacts of Midwestern cropping systems on soil health and subsurface drainage water quality, Brian Dougherty

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Agricultural tire dynamometer test stand, Colton Finley

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Effects of organic fertilization on soil bacterial community structure in incubated microcosms, Jared Scott Flater

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Solution methods and bounds for two-stage risk-neutral and multistage risk-averse stochastic mixed-integer programs with applications in energy and manufacturing, Ge Guo

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Evaluating manufacturing energy consumption for a part using geometry, Alicia M. Guzman Gutierrez

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Volumetric yield sensing in a combine harvester, Michael Hanigan

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Optimization of job shop scheduling with material handling by automated guided vehicle, Shiyang Huang

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Exploring households' weatherization adoptions: An agent-based approach, Wanyu Huang

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An assessment tool to determine the appropriateness of engineering design projects for gender bias, ambiguity, and major relatedness, Shubham Prashant Khoje

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Real options models and analyses for energy transportation systems with jump and diffusion processes: Electric power transmission planning and fuel-carrying ship design, Fikri Kucuksayacigil

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Interaction of optimization models and information sharing in a two echelon supply chain, Preetam Kulkarni

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A multiple decision-maker approach to allocating resources to prepare and respond to major disruptions, Brandon Joe Landowski

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Investment decision-making in clean energy under uncertainties: A real options approach, Yihua Li

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Nondestructive measurement system to determine corn seed planting depth using ground penetrating radar for precision agriculture, Kenneth Obrien Mpho Mapoka

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Surface water hydrology and quality in farmed prairie potholes of the Des Moines Lobe in Iowa, Alexander R. Martin

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Developing general procedure to quantitatively analyze boom height control performance on self-propelled agricultural sprayers, Lucas Miles

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A stochastic simulation approach for improving response in genomic selection, Saba Moeinizade

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User-packaging interaction (UPI): A comprehensive research platform and techniques for improvement, evaluation, and design, Ahmad Abdelhafiz Mumani

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Generalized weighting for bagged ensembles, Hieu Trung Pham

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An analysis of using online testing modules in engineering economics, Vrishtee Divakar Rane

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Fate and transport of manure associated microbial constituents in agroecosystems, Elizabeth Luby Rieke

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Evaluation of syngas mass transfer and its impact on syngas fermentation and development of a novel enhanced gas to liquid mass transfer bioreactor, Ashik Sathish

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Hydrological and empirical modeling framework for farmed prairie potholes in the prairie pothole region of Iowa, Pawan Upadhyay

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Investigation on selected factors causing variability in additive manufactured parts, Anusha Velineni

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Cognitive skill degradation: Analysis and evaluation in flight planning, Katherine Mary Volz

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Life cycle assessment (LCA) and techno-cconomic analysis (TEA) of biobased adhesive derived from glycerol, Minliang Yang

Theses/Dissertations from 2017

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Evaluation of subsurface drainage on phosphorus losses and application of the SoilIceDB model in the Black Hawk Lake Watershed, Iowa, Conrad Brendel

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Effect of converting row crop to prairie on nutrient concentration in shallow groundwater and soil properties, Bethany Brittenham

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Sustainability analysis of soybean refinery: soybean oil extraction process, Ming-Hsun Cheng

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Modeling long-term impacts of alternative subsurface drainage systems and quantifying impacts of cover crops, Kristina Jo Craft

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Evaluating disintermediation in regional food systems using agent-based modeling, Teri Jo Craven

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Climate dependent heat stress mitigation modeling for dairy cattle housing, Katlyn Renea DeVoe

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Assessment of ethanol production by pentose-degrading yeasts in an integrated corn-soy bio-refinery and testing of efficacy of chemical preservatives in distillers wet grains, Varsha Gaonkar

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Distributed nonconvex optimization: Algorithms and convergence analysis, Davood Hajinezhad

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Operations research applications in multi-allelic trait introgression in plant breeding, Ye Han

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A medial axis transformation based process planning method for rapid tooling, Ziyang He

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Automated Design for Manufacturing and Supply Chain Using Geometric Data Mining and Machine Learning, Michael Jeffrey Daniel Hoefer

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Swine finishing room air infiltration quantification-modelling and use in ventilation system design, Harishchandra Tulshiram Jadhav