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Economic Model For Investing Small Vs. Large Ag Equipment, Jonathan Alas, Chris Davis, Grant Pieper 2018 Iowa State University

Economic Model For Investing Small Vs. Large Ag Equipment, Jonathan Alas, Chris Davis, Grant Pieper

TSM 415 Technology Capstone Posters

• Producers can have a difficult decision when it comes to purchasing equipment.

• Producers are always looking to minimize costs and maximize efficiency when it comes to their equipment.

• In a state that is a big player in the agriculture industry it is important for our producers to produce at the highest efficiency possible.


Designing And Building A Grain Dryer Test Stand, Luke Fischer, Travis Hursh, Riley Schnell, Jet Wayne 2018 Iowa State University

Designing And Building A Grain Dryer Test Stand, Luke Fischer, Travis Hursh, Riley Schnell, Jet Wayne

TSM 415 Technology Capstone Posters

The ISU Feed Mill is in need of an operating grain dryer test stand that can accurately represent four different grain mixing styles used in the market today.


Creation Of The Ideal Welding Cell For Sprayer Booms, Paul Appleget, Katherine Larson, Matthew Rowan, Jonathon Thomas 2018 Iowa State University

Creation Of The Ideal Welding Cell For Sprayer Booms, Paul Appleget, Katherine Larson, Matthew Rowan, Jonathon Thomas

TSM 415 Technology Capstone Posters

Welding production requires an increase to 2 machines per day. Hagie has full capability to keep up with John Deere’s standards set by a newer business deal between the companies.


Analysis Of Nutrient Cover Solutions, Nicholas Jamison, Cole Reighard, Andrew Russ 2018 Iowa State University

Analysis Of Nutrient Cover Solutions, Nicholas Jamison, Cole Reighard, Andrew Russ

TSM 415 Technology Capstone Posters

Develop a cover for a manure holding structure that will effectively reduce the accumulated rainfall inside the structure and increase the per gallon value of the manure.


Batch To Single Piece Flow, Ryan Hood, Miles Martin, Michael Shultz 2018 Iowa State University

Batch To Single Piece Flow, Ryan Hood, Miles Martin, Michael Shultz

TSM 415 Technology Capstone Posters

Assess the current T1 Snap product line and propose a move from batch production to single piece flow.


Integrating Multimedia Models To Assess Nitrogen Losses From The Mississippi River Basin To The Gulf Of Mexico, Ruoyu Wang 2018 University of California, Davis

Integrating Multimedia Models To Assess Nitrogen Losses From The Mississippi River Basin To The Gulf Of Mexico, Ruoyu Wang

Ruoyu Wang

This study describes and implements an integrated, multimedia, process-based system-level approach to estimating nitrogen (N) fate and transport in large river basins. The modeling system includes the following components: (1) Community Multiscale Air Quality (CMAQ), (2) Weather Research and Forecasting Model (WRF), (3) Environmental Policy Integrated Climate (EPIC), and (4) Soil and Water Assessment Tool (SWAT). The previously developed Fertilizer Emission Scenario Tool for CMAQ (FEST-C), an advanced user interface, integrated EPIC with the WRF model and CMAQ. The FEST-C system, driven by process-based WRF weather simulations, includes atmospheric N additions to agricultural cropland and agricultural cropland contributions to ammonia ...


Waste To Carbon: Densification Of Torrefied Refuse-Derived Fuel, Andrzej Białowiec, Monika Micuda, Jacek A. Koziel 2018 Wrocław University of Environmental and Life Sciences

Waste To Carbon: Densification Of Torrefied Refuse-Derived Fuel, Andrzej Białowiec, Monika Micuda, Jacek A. Koziel

Agricultural and Biosystems Engineering Publications

In this work, for the first time, the feasibility of obtaining carbonized refuse-derived fuel (CRDF) pelletization from municipal solid waste (MSW) was shown. Production of CRDF by torrefaction of MSW could be the future of recycling technology. The objective was to determine the applied pressure needed to produce CRDF pellets with compressive strength (CS) comparable to conventional biomass pellets. Also, the hypothesis that a binder (water glass (WG)) applied to CRDF as a coating can improve CS was tested. The pelletizing was based on the lab-scale production of CRDF pellets with pressure ranging from 8.5 MPa to 76.2 ...


Copper Complexation By Dissolved Organic Matter In Arid Soils: A Voltametric Study, Spencer M. Steinberg, Vernon F. Hodge 2018 University of Nevada, Las Vegas

Copper Complexation By Dissolved Organic Matter In Arid Soils: A Voltametric Study, Spencer M. Steinberg, Vernon F. Hodge

Chemistry and Biochemistry Faculty Publications

A voltammetric method was used to estimate the complexing capacity of water extracts from both desert soils sampled at the root zone of creosote and salt cedar plants, and in soils from interspace or background regions where no vegetative influence was apparent. The copper complexing capacity of water extracts of these desert soils was influenced by contact time and pH. In soils from the root zones of creosote and salt cedar plant, copper complexation capacities at pH 8 were from 5 µM to 60 µM after five min contact periods, while 18 h contact periods yielded copper complexation capacities of ...


Linking Lignin Source With Structural And Electrochemical Properties Of Lignin-Derived Carbon Materials, Wenqi Li, Yan Zhang, Lalitendu Das, Yikai Wang, Mi Li, Namal Wanninayake, Yunqiao Pu, Doo Young Kim, Yang-Tse Cheng, Arthur J. Ragauskas, Jian Shi 2018 University of Kentucky

Linking Lignin Source With Structural And Electrochemical Properties Of Lignin-Derived Carbon Materials, Wenqi Li, Yan Zhang, Lalitendu Das, Yikai Wang, Mi Li, Namal Wanninayake, Yunqiao Pu, Doo Young Kim, Yang-Tse Cheng, Arthur J. Ragauskas, Jian Shi

Biosystems and Agricultural Engineering Faculty Publications

Valorization of lignin to high-value chemicals and products along with biofuel production is generally acknowledged as a technology platform that could significantly improve the economic viability of biorefinery operations. With a growing demand for electrical energy storage materials, lignin-derived activated carbon (AC) materials have received increasing attention in recent years. However, there is an apparent gap in our understanding of the impact of the lignin precursors (i.e., lignin structure, composition and inter-unit linkages) on the structural and electrochemical properties of the derived ACs. In the present study, lignin-derived ACs were prepared under identical conditions from two different lignin sources ...


Water, Energy, And Carbon Footprints Of Bioethanol From The U.S. And Brazil, Mesfin Mergia Mekonnen, Thiago L. Romanelli, Chittaranjan Ray, Arjen Y. Hoekstra, Adam Liska, Christopher M. U. Neale 2018 University of Nebraska - Lincoln

Water, Energy, And Carbon Footprints Of Bioethanol From The U.S. And Brazil, Mesfin Mergia Mekonnen, Thiago L. Romanelli, Chittaranjan Ray, Arjen Y. Hoekstra, Adam Liska, Christopher M. U. Neale

Adam Liska Papers

Driven by biofuel policies, which aim to reduce greenhouse gas (GHG) emissions and increase domestic energy supply, global production and consumption of bioethanol have doubled between 2007 and 2016, with rapid growth in corn-based bioethanol in the U.S. and sugar cane-based bioethanol in Brazil. Advances in crop yields, energy use efficiency in fertilizer production, biomass-to-ethanol conversion rates, and energy efficiency in ethanol production have improved the energy balance and GHG emission reduction potential of bioethanol. In the current study, the water, energy, and carbon footprints of bioethanol from corn in the U.S. and sugar cane in Brazil were ...


Fractionation And Characterization Of Lignin Streams From Unique High-Lignin Content Endocarp Feedstocks, Wenqi Li, Kirtley Amos, Mi Li, Yunqiao Pu, Seth DeBolt, Arthur J. Ragauskas, Jian Shi 2018 University of Kentucky

Fractionation And Characterization Of Lignin Streams From Unique High-Lignin Content Endocarp Feedstocks, Wenqi Li, Kirtley Amos, Mi Li, Yunqiao Pu, Seth Debolt, Arthur J. Ragauskas, Jian Shi

Biosystems and Agricultural Engineering Faculty Publications

Background: Lignin is a promising source of building blocks for upgrading to valuable aromatic chemicals and materials. Endocarp biomass represents a non-edible crop residue in an existing agricultural setting which cannot be used as animal feed nor soil amendment. With significantly higher lignin content and bulk energy density, endo-carps have significant advantages to be converted into both biofuel and bioproducts as compared to other biomass resources. Deep eutectic solvent (DES) is highly effective in fractionating lignin from a variety of biomass feedstocks with high yield and purity while at lower cost comparing to certain ionic liquids.

Results: In the present ...


Catalytic Deoxygenation Of Model And Realistic Feeds To Fuel-Like Hydrocarbons Over Supported Nickel-Copper Catalysts, Deyshon Ward, Kazi Javed 2018 Kentucky State University

Catalytic Deoxygenation Of Model And Realistic Feeds To Fuel-Like Hydrocarbons Over Supported Nickel-Copper Catalysts, Deyshon Ward, Kazi Javed

Posters-at-the-Capitol

The goal was to make a renewable fuel by using catalysts to remove oxygen molecules from fats. This is a current issue that society faces today because nonrenewable fossil fuels hurt the environment more than they help it. There are two components that make up a heterogeneous catalyst, a support and a reduced metal active phase. The active metal phases Nickel, Palladium, Platinum have been studied in the past on an alumina and carbon supports. We were investigating other supports using Nickel as the active phase component to determine the effect the support has on the catalyst removing oxygen of ...


Developing Serious Games In Engineering Education: Innovation At The Nexus Of Food, Energy, And Water Systems, Nathan Rice 2018 University of Nebraska-Lincoln

Developing Serious Games In Engineering Education: Innovation At The Nexus Of Food, Energy, And Water Systems, Nathan Rice

Biological Systems Engineering--Dissertations, Theses, and Student Research

At a time when food, energy, and water (FEW) are of the utmost concern to the security and health of the world, an initiative has begun to understand the interactions between these systems. The goal of Innovation at the Nexus of Food, Energy, and Water Systems (INFEWS) is to bring together research fields that typically work in their own silos to solve complex problems increasing the resiliency and sustainability of the FEW system. Stemming from this initiative was a project to produce an educational immersive simulation game to teach youth about how their food is produced, systems thinking, and sustainable ...


Predicting Aged Pork Quality Using A Portable Raman Device, C. C. Santos, J. Zhao, X. Dong, S. M. Lonergan, E. Huff-Lonergan, A. Outhuse, K. B. Carlson, K. J. Prusa, C. A. Fedler, C. Yu, S. D, Shackelford, D. A. King, T. L. Wheeler 2018 Iowa State University

Predicting Aged Pork Quality Using A Portable Raman Device, C. C. Santos, J. Zhao, X. Dong, S. M. Lonergan, E. Huff-Lonergan, A. Outhuse, K. B. Carlson, K. J. Prusa, C. A. Fedler, C. Yu, S. D, Shackelford, D. A. King, T. L. Wheeler

Animal Science Publications

The utility of Raman spectroscopic signatures of fresh pork loin (1 d & 15 d postmortem) in predicting fresh pork tenderness and slice shear force (SSF) was determined. Partial least square models showed that sensory tenderness and SSF are weakly correlated (R2 = 0.2). Raman spectral data were collected in 6 s using a portable Raman spectrometer (RS). A PLS regression model was developed to predict quantitatively the tenderness scores and SSF values from Raman spectral data, with very limited success. It was discovered that the prediction accuracies for day 15 post mortem samples are significantly greater than that for day ...


Invasion Of The P Elements: Tolerance Is Not Futile, Colin D. Meiklejohn, Justin P. Blumenstiel 2018 University of Nebraska-Lincoln

Invasion Of The P Elements: Tolerance Is Not Futile, Colin D. Meiklejohn, Justin P. Blumenstiel

Biological Systems Engineering: Papers and Publications

Organisms are locked in an eternal struggle with parasitic DNA sequences that live inside their genomes and wreak havoc on their host’s chromosomes as they spread through populations. To combat these parasites, host species have evolved elaborate mechanisms of resistance that suppress their activity. A new study in Drosophila indicates that, prior to the acquisition of resistance, individuals can vary in their ability to tolerate the activity of these genomic parasites, ignoring or repairing the damage they induce. This tolerance results from variation at genes involved in germline development and DNA damage checkpoints and suggests that these highly conserved ...


A Review On Bioconversion Of Agro-Industrial Wastes To Industrially Important Enzymes, Rajeev Ravindran, Shady S. Hassan, Gwilym A. Williams, Amit K, Jaiswal 2018 Dublin Institute of Technology

A Review On Bioconversion Of Agro-Industrial Wastes To Industrially Important Enzymes, Rajeev Ravindran, Shady S. Hassan, Gwilym A. Williams, Amit K, Jaiswal

Articles

Agro-industrial waste is highly nutritious in nature and facilitates microbial growth. Most agricultural wastes are lignocellulosic in nature; a large fraction of it is composed of carbohydrates. Agricultural residues can thus be used for the production of various value-added products, such as industrially important enzymes. Agro-industrial wastes, such as sugar cane bagasse, corn cob and rice bran, have been widely investigated via different fermentation strategies for the production of enzymes. Solid-state fermentation holds much potential compared with submerged fermentation methods for the utilization of agro-based wastes for enzyme production. This is because the physical–chemical nature of many lignocellulosic substrates ...


Optimization Of Time-Weighted Average Air Sampling By Solid-Phase Microextraction Fibers Using Finite Element Analysis Software, Bulat Kenessov, Jacek A. Koziel, Nassiba Baimatova, Olga P. Demyanenko, Miras Derbissalin 2018 Al-Farabi Kazakh National University

Optimization Of Time-Weighted Average Air Sampling By Solid-Phase Microextraction Fibers Using Finite Element Analysis Software, Bulat Kenessov, Jacek A. Koziel, Nassiba Baimatova, Olga P. Demyanenko, Miras Derbissalin

Agricultural and Biosystems Engineering Publications

Determination of time-weighted average (TWA) concentrations of volatile organic compounds (VOCs) in air using solid-phase microextraction (SPME) is advantageous over other sampling techniques, but is often characterized by insufficient accuracies, particularly at longer sampling times. Experimental investigation of this issue and disclosing the origin of the problem is problematic and often not practically feasible due to high uncertainties. This research is aimed at developing the model of the TWA extraction process and optimization of TWA air sampling by SPME using finite element analysis software (COMSOL Multiphysics, Burlington, MA, USA). It was established that sampling by porous SPME coatings with high ...


Input Uncertainty On Watershed Modeling: Evaluation Of Precipitation And Air Temperature Data By Latent Variables Using Swat, Ruoyu Wang 2018 University of California, Davis

Input Uncertainty On Watershed Modeling: Evaluation Of Precipitation And Air Temperature Data By Latent Variables Using Swat, Ruoyu Wang

Ruoyu Wang

Latent variables (i.e., normally distributed random noise) provide valuable information regarding model input uncertainty. Watershed processes have been explored with sophisticated simulation models in the past few decades and researchers have found that incorporating the uncertainty attributed to forcing inputs, model parameters, and measured data, can help improve simulation results, however, not in all cases. Latent variable use requires careful consideration to determine if results are better or worse. In this study, latent variables were implemented to both precipitation and air temperature data to investigate the influence on model predictions and associated predictive uncertainty by using the Soil and ...


Flexible Laser-Induced Graphene For Nitrogen Sensing In Soil, Nate T. Garland, Eric S. McLamore, Nicholas D. Cavallaro, Deyny Mendivelso-Perez, Emily A. Smith, Dapeng Jing, Jonathan C. Claussen 2018 Iowa State University

Flexible Laser-Induced Graphene For Nitrogen Sensing In Soil, Nate T. Garland, Eric S. Mclamore, Nicholas D. Cavallaro, Deyny Mendivelso-Perez, Emily A. Smith, Dapeng Jing, Jonathan C. Claussen

Mechanical Engineering Publications

Flexible graphene electronics are rapidly gaining interest, but their widespread implementation has been impeded by challenges with ink preparation, ink printing, and post-print annealing processes. Laser-induced graphene (LIG) promises a facile alternative by creating flexible graphene electronics on polyimide substrates through a one-step laser writing fabrication method. Herein we demonstrate the use of LIG, created through a low-cost UV laser, for electrochemical ion selective sensing of plant-available nitrogen (i.e., both ammonium and nitrate ions: NH4+ and NO3-) in soil samples. The laser used to create the LIG was operated at distinct pulse rates (10, 20, 30, 40, and 50 ...


Spatial Structuring Of Cellulase Gene Abundance And Activity In Soil, Jinlyung Choi, Elizabeth Bach, Jaejin Lee, Jared Flater, Shane Dooley, Adina Howe, Kirsten S. Hofmockel 2018 Iowa State University

Spatial Structuring Of Cellulase Gene Abundance And Activity In Soil, Jinlyung Choi, Elizabeth Bach, Jaejin Lee, Jared Flater, Shane Dooley, Adina Howe, Kirsten S. Hofmockel

Agricultural and Biosystems Engineering Publications

Microbial mechanisms controlling cellulose degradation in soil habitats remains a critical knowledge gap in understanding and modeling terrestrial carbon-cycling. We investigated land management and soil micro-habitat influences on soil bacterial communities and distribution of cellulose-degrading enzyme genes in three bioenergy cropping systems (corn, prairie, and fertilized prairie). Within the soil, aggregates have been examined as potential micro- habitats with specific characteristics influencing resource partitioning and regulation, thus we also investigated genes associated with cellulose degradation within soil aggregate fractions from the fertilized prairie system. Soil bacterial communities and carbon-cycling gene presence varied across land management and soil microhabitats. Examination of ...


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