Digital Commons Network^™

Development And Validation Of An Integrated Stem Teacher Classroom Observation Protocol, Shuqi Zhou, Hillary E. Merzdorf, Kerrie A. Douglas, Tamara J. Moore

Journal of Pre-College Engineering Education Research (J-PEER)

This study aimed to develop a K-12 classroom observation protocol to assess K-12 teachers’ implementation of science, technology, engineering, and mathematics (STEM) integration. The intended purpose of the observation protocol is for researchers to examine how K-12 teachers implement the STEM integrated curriculum. Based on research on STEM integration, the protocol covers eight categories: Define, Learn, Plan, Try, Test, Decide, Improve, and Instructional Strategies. The protocol was reviewed by a panel of integrated STEM education experts, engineering design experts, and educational assessment experts (n = 15) and revised accordingly. To test the reliability of using the protocol, two …

Text Data Mining Sources: A Comparison Of Options, Ilana Stonebraker

Midwest Business Librarian Summit (MBLS)

This presentation is comparison of the various TDM (text data mining) sources. It will include Proquest TDM Studio, Constellate, Gale Digital Scholar Lab, Factiva Data Feed, and Nexis Data Lab. The intent is to briefly compare the options, questions and sources for data mining questions.

What’S Gender Got To Do With It? Beyond Binary Gender In Market Research Resources, Amanda Pirog

Midwest Business Librarian Summit (MBLS)

No abstract provided.

The Global Trade Analysis Project (Gtap) Data Base: Version 11, Angel Aguiar, Maksym Chepeliev, Erwin Corong, Dominique Van Der Mensbrugghe

Department of Agricultural Economics Faculty Publications

This paper describes the construction of the GTAP Data Base, version 11. The database reconciles different data sources at a global scale for analytical use and provides time series data on value flows, volumes, and various tax instruments. GTAP version 11 has 5 reference years (2004, 2007, 2011, 2014, and 2017), distinguishes 65 sectors in each of 141 countries and 19 aggregate regions - with individual countries accounting for 99.1% of world GDP and 96.4% of world population. The exhaustive nature of GTAP in its country and sector coverage facilitates its use in economy-wide studies of global economic issues.

Neural Network Based Adaptive Fractional-Order Backstepping Control Of Uncertain Quadrotors With Unknown Input Delays, Yi Yang, Haiyan Z. Zhang

Purdue University Libraries Open Access Publishing Fund

Adaptive control is essential and effective for reliable quadrotor operations in the presence of uncertain modeling parameters and unknown time-delayed inputs. This paper presents an original radial basis function neural network-based adaptive fractional-order backstepping controller (RBF-ADFOBC). The nonlinearity of the time-delayed inputs is eliminated by introducing an augmented state variable via Pade’s approximation method. For each subsystem in the quadrotor dynamics, a companioned second-order compensation system is developed. The candidate Lyapunov functions are then properly designed by incorporating the control errors, parameter uncertainties and estimation errors of the neural networks’ weight vectors. It is shown that the semi-globally uniformly ultimately …

The Simon Effect Asymmetry For Left- And Right-Dominant Persons, Robert W. Proctor, Qi Zhong, Jing Chen

Purdue University Libraries Open Access Publishing Fund

When participants respond to a task-relevant stimulus attribute by pressing a left or right key with the respective index finger, reaction time is shorter if task-irrelevant left-right stimulus location corresponds to that of the response key than if it does not. For right-handers, this Simon effect is larger for right-located than left-located stimuli; for left-handers this Simon-effect asymmetry is reversed. A similar asymmetry has been found for right-footers pressing pedals with their feet. For analyses that separate stimulus- and response-location factors, these asymmetries appear as a main effect of response location, with responses being faster with the dominant effector. If …

Development Of An Automatic Contextual Agricultural Metadata Collection App, Md. Samiul Basir, Dennis R. Buckmaster, Yaguang Zhang

Graduate Industrial Research Symposium

Data is the base of digital agriculture. Farm activities are the metadata for production data that are often recorded manually, hence erroneous and missing data often occur. A metadata collection app for contextual agricultural activities was developed for recording detailed information on who is doing what in which field, when, and how. It was developed for android smartphones and functions as a geofence responsive field recognizer using the GPS location of the app user. It records the accessed crop fields automatically with time and facilitates a rules-driven chatbot with validated options for collecting detailed metadata about the conducted activities in …

Fish Farming Wastewater Treatment Using Algae-Cyanobacterial Inocula, Yolanys Aranda

Graduate Industrial Research Symposium

Fish is one of the most important nutrient sources of the human diet, and its low-cost aquaculture production is advantageous. During processing, large quantities of organic and inorganic nutrients are produced. Discharging fish farming wastewater to the environment without proper treatment can support harmful algal growth. Therefore, aquaculture effluent must be treated prior to discharge to the receiving waters. In this study, six different cyanobacteria and algae species, including Chlorococcumminutum, Porphyridiumcruentum, Chlorella vulgaris, Microcystis aeruginosa, Chlamydomonas reinhardtii, and Fischerellamuscicola were studiedto treatfish aquaculture wastewater, using mix-culture bacteria as the inoccolum. All samples were incubated for 21 days. Parameters such as …

Raman Spectroscopy - An Analytical Tool For Biologics, Cindy Mayorga, Shreya Milind Athalye, Mohit Verma

Graduate Industrial Research Symposium

Raman Spectroscopy (RS) is a non-invasive technique that analyses biomolecules qualitatively and quantitatively. Raman spectroscopy measures the inelastic scattering of light due to molecular vibrations. It can be applied to liquid, solid, or semi-solid forms of the biological sample reducing the sample preparation measures. The minimal sample preparation and non-invasive nature of Raman Spectroscopy can be applied in developing a Process analytical technology (PAT) tool and as a diagnostic tool. We demonstrated qualitative and quantitative measurements of biologics with Raman spectroscopy through our previous studies. Our results indicate that RS distinguishes various Gram-positive and Gram-negative bacteria, fungi, and a mixture …

Yield Stress And Flow Behavior Of Enzyme Liquiefied Slurries From Corn Cobs And Corn Stover Pellets, Diana Milena Ramiez Gutierrez

Graduate Industrial Research Symposium

With the increase in population, the world will depend on renewable sources to meet the increasing energy needs. The use of lignocellulosic biomass as a renewable source has been proven efficient for conversion to cellulosic ethanol and capable of contributing to thresholds for energy demand while reducing greenhouse gases by 90% when compared with fossil fuels. However, feeding and flow of biomass within biorefineries represent a constant challenge and needs to be addressed.

The purpose of this research is to understand the yield stress and flow behavior of enzyme liquefied slurries from Corn Cobs and Corn Stover Pellets and explore …

Design Of A Virtual Lab For Plate Heat Exchanger Sterilization System, Daniel N. Hauersperger

Graduate Industrial Research Symposium

Online learning has become a staple in contemporary education, requiring new ways to display and promote experiences. Virtual labs can be used to give learners a way to enter a lab environment without the need for expensive equipment or materials. One example is to give students a “hands-on” experience using a sterilization process to preserve biological materials. Sterilization systems incorporate heat exchangers to bring product up to temperature and then cool product down quickly to prevent excess degradation of nutrients. Data generated from virtual labs will allow learners to use the system responses and build their understanding of how the …

Identifying Essential Genes For The Assembly And Function Of Tails In Novel Myoviridae Bacteriophages, Harry Ashbaugh, Kari Clase

Graduate Industrial Research Symposium

A bacteriophage is a virus that infects bacterial hosts. They are typically composed of a head, a tail, and fibers on the tail that allow it to attach to the bacterial membrane. Myoviridae are a family of bacteriophage that are distinct for their short, contractile tails that undergo conformational changes when they attach to bacteria, which are essential to inject its genetic material into the cell. The purpose of this research is to utilize genetic sequencing and comparative genomics to identify the genes that allow for the tail structure, conformation change, and attachment in novel Myoviridae bacteriophages. In characterizing these …

Sea-Phages Course-Based Undergraduate Research Experience For Creating A Biotechnology Workforce Development Pipeline, Daphne Fauber, Kari Clase, Carol Weaver

Graduate Industrial Research Symposium

Purdue University has been a member of the SEA-PHAGES (Science Education Alliance-Phage Hunters Advancing Genomics and Evolutionary Science) program since 2011. This program, created in conjunction with the Howard Hughes Medical Institute (HHMI), facilitates undergraduate curriculum for the authentic discovery of novel bacteriophages within the classroom. Since joining the program, undergraduates at Purdue have harnessed wet lab and bioinformatics principles to contribute over 200 previously uncharacterized bacteriophages and 25 novel genomes to the wider scientific literature. The SEA-PHAGES classes at Purdue have resulted in tangible professional deliverables for students through conference presentations and publications. Student outcomes also include transferable skills …

Evaluating The Environmental Impacts Of U.S. Historical Oil Spill Incidents, Yiming Liu, Hua Cai

Graduate Industrial Research Symposium

The adverse impacts of extremely large oil spill incidents such as Deepwater Horizon Oil Spill have been widely studied in recent years. Catastrophic oil spill disasters such as Deepwater Horizon Oil Spill have been widely studied. While vast smaller oil spills, which also could result in significant amount of oil release, still lack attention.

This research assessed distributions and environmental impacts caused by historical oil spill incidents in U.S. We first analyzed the spatial and temporal characteristics of oil spills. Then the relationship between spillage amount and spill frequency is evaluated via statistical approaches. Last, based on a thorough literature …

Nucleic Acid Detection Of Live Pathogens On Contaminated Foods, Simerdeep Kaur, Mohit Verma

Graduate Industrial Research Symposium

The goal is to develop a point-of-care biosensor for the detection of live pathogens contaminating beef products. Biosensing of live pathogens is based on isothermal amplification of nucleic acid on a paper-based device. A colorimetric dye is employed as an indicator of the amplification product for visual result. The assay incorporates a compound Propidium monoazide (PMA) that makes the DNA from dead cells inaccessible for amplification. This approach is especially applicable for pathogens that can enter a viable but non-culturable state (VBNC).

Comprehensive Microenvironment Monitoring For The Productivity And Welfare Of Sows And Piglets, Jun Ho Kim

Graduate Industrial Research Symposium

The world is facing increasing food demand and climate change. To improve piglet survivability and sow welfare through microenvironment management using precision technology, a USDA sponsored research project started in 2021 and is ongoing. A comprehensive yet low-cost system was designed and developed for continuous and real-time microenvironment monitoring in three rooms of Farrowing Building #1 at the Animal Sciences Research and Education Center, Purdue University. The system consists of two gas analyzers and 103 different sensors, including sensors in a weather station. The first trial of the project was conducted from Jan. 13 to Feb. 8, 2023, when the …

Development Of An Open Source Connected Autonomous Rover (Oscar) For Under Canopy Row Crop Sampling, Nathan Sprague, J. T. Evans

Graduate Industrial Research Symposium

High density sampling of row cropping systems can enable a variety of agronomic research that is currently too labor intensive to feasibly pursue by hand. While aerial drones are commonly used to collect field data, there are numerous measurements of interest that require sensors deployed under the crop canopy. This project examines the development of a robust autonomous rover (OSCAR) that can travel through rows of corn throughout the growing season. OSCAR has a 22” wheelbase with differential steering allowing it to navigate through corn rows without damaging the plants. OSCAR is equipped with an RTK GNSS module and stereo …

Fuzzy Dynamic Gait Pattern Generation For Real-Time Push Recovery Control Of A Teen-Sized Humanoid Robot, Li-Fan Wu

Graduate Industrial Research Symposium

A fuzzy dynamic gait pattern generator, which allows a teen-sized humanoid robot to generate, in real-time, a suitable gait pattern when it is hit by an unexpected force, is proposed in this paper. Conventional gait pattern generators usually utilize the ideal Zero Moment Point (ZMP) to plan the trajectory of the Center of Mass (CoM), along with a cycloid to generate steps. However, pre-planned gait patterns cannot deal with unexpected situations, especially instances when the robot experiences an unknown force. Therefore, we propose a dynamic gait pattern generator that leverages the Virtual Force Linear Inverted Pendulum Model (VFLIPM) to adjust …

Identifying Non-Traditional Slippery Sequences Associated With Translational Frameshifts, Aaron J. Gin, Kari Lynn Clase

Graduate Industrial Research Symposium

Genetic frameshifts are a mutation in which
a nucleotide skip leads to a shift in the
reading frame. In viruses, these frameshifts
can be programmed using a slippery
sequence to bypass the stop codon
associated with the initial protein. This
allows for variable control of protein
expression. In bacteriophages, translational
frameshifts have been identified but only a
few have been proven experimentally. Using
experimental data and comparative
genomics, non-traditional slippery
sequences can be identified as assisting in
controlling the protein coding throughout
viruses. Novel slippery sequences can aid in
the understanding of protein expression in
biological environments and further the …

Thermally Treated To Perfection: Enhancing Wood Color And Properties With Surface Thermal Treatment, Jue Mo, Dipesh Tamboli, Eva Haviarova

Graduate Industrial Research Symposium

Darker-colored wood species usually have higher
values, many of which are endangered and under
protection. Chemical stains and finishes might also
achieve similar color shades, but customers prefer
non-chemical alternatives. Thermal treatment (TT)
is one of the low-toxicity choices. It could produce
darker shades and enhance some material
properties but requires a large initial investment
and is time-consuming. This study aimed to
evaluate a new type of TT: Surface Thermal
Treatment (STT). White Ash, Yellow Poplar, and Red
Oak were selected and treated on a heated press
at varying temperatures and times. Artificial Neural
Network (ANN) was employed to model …

Enzyme-Treated Yeast Fed To Coccidia-Challenged Broiler Chickens, Emmanuel O. Alagbe, Hagen Schulze, Olayiwola Adeola

Graduate Industrial Research Symposium

There is a growing search for natural feed additives to alleviate the deleterious effects of coccidia infection in poultry. Research has shown that may serve as healthier alternatives to coccidiostats.

This study aimed to investigate the effect of enzyme-treated yeast (EY) on the performance, nutrient digestibility, intestinal morphology, and health of coccidia-challenged broiler chickens. 480 broiler chickens were allocated to 3 corn-soybean meal-based experimental diets with increasing concentrations of EY (0, 1, or 2 g/kg). Dietary EY enhanced nutrient utilization and augmented intestinal development in broiler chickens. However, dietary EY did not completely attenuate the adverse effects of a coccidia …

The Next-Gen Crop Nutrient Stress Identification With High-Precision Sensing Technology In Digital Agriculture, Zhihang Song, Ziling Chen, Xing Wei, Jian Jin

Graduate Industrial Research Symposium

Crop yields are facing significant losses from nutrient deficiencies. Over-fertilizing also has negative economic and environmental impacts. It is challenging to optimize fertilizing without an accurate diagnosis. Recently, plant phenotyping has demonstrated outstanding capabilities in estimating crop traits. As one of the leading technologies, LeafSpec, provides high-quality crop image data for improving phenotyping quality. In this study, novel algorithms are developed for LeafSpec to identify crop nutrient deficiencies more accurately. Combined with UAV system, this technology will bring growers a robust solution for fertilizing diagnosis and scientific crop management.

An Intervention To Promote Growth Mindset And Stem Self-Efficacy Of High School Students: Exploring The Complexity Of Beliefs, Amy Kramer, Emily Dringenberg, Carter Morris, Darcy Mccarthy

Journal of Pre-College Engineering Education Research (J-PEER)

The marginalization of women in engineering is a persistent problem. The overall goal of our collaborative project was to promote interest and participation in science, technology, engineering, and mathematics (STEM), particularly for high school girls. We took an action research approach with a local high school science teacher to develop, implement, and research the impact of a classroom-based intervention designed to encourage growth mindset and STEM self-efficacy beliefs using mixed methods. We analyzed pre- and postsurvey data collected using a control-treatment design to determine the impact of the intervention on high school boys’ and girls’ self-efficacy and mindset beliefs. We …

Recognition Of Design Failure By Fourth-Grade Students During An Engineering Design Challenge, Ron K. Skinner, Danielle B. Harlow

Journal of Pre-College Engineering Education Research (J-PEER)

The practice of persisting and learning from design failures is essential to engineering design and offers unique ways of knowing and learning for K-12 students. To understand how students engage in the practice of persisting and learning from design failures, we must first understand how, if at all, they recognize that a design failure has occurred. We studied a classroom of fourth-grade students engaged in an engineering design challenge and examined the ways in which design failure occurred and how students recognized, neglected to recognize, or misinterpreted design failure. We found that, in addition to anticipating failure, conducting fair tests, …

Memory Retrieval, Reconsolidation, And Extinction: Exploring The Boundary Conditions Of Post-Conditioning Cue Exposure, Nicole C. Ferrara, Janine L. Kwapis, Sydney Trask

Purdue University Libraries Open Access Publishing Fund

Following fear conditioning, behavior can be reduced by giving many CS-alone presentations in a process known as extinction or by presenting a few CS-alone presentations and interfering with subsequent memory reconsolidation. While the two share procedural similarities, both the behavioral outcomes and the neurobiological underpinnings are distinct. Here we review the neural and behavioral mechanisms that produce these separate behavioral reductions, as well as some factors that determine whether or not a retrieval-dependent reconsolidation process or an extinction process will be in effect.

Performance Optimization By Adaptive Control Of Material Properties In Portable Electronic Devices, S. Bandyopadhyay, Justin Weibel

CTRC Research Publications

No abstract provided.

Microlayer Evaporation Governs Heat Transfer Enhancement During Pool Boiling From Microstructured Surfaces, M. Bongarala, Han Hu, Justin Weibel, Suresh V. Garimella

CTRC Research Publications

No abstract provided.

Wetting Hysteresis As The Mechanism Of Heat Pipe Post-Dryout Thermal Hysteresis And Recovery, K. Baraya, Justin Weibel, S. V. Garimella

CTRC Research Publications

No abstract provided.

Intra-Lid Multi-Core Vapor Chamber Architecture For Heterogeneous Electronic Packages: Technology Concept To Prototype Evaluation, S Bandyopadhyay, A Yuksel, A M. Marconnet, Justin Weibel

CTRC Research Publications

No abstract provided.

Mapping The Amplitude And Frequency Of Pressure Drop Oscillations Via A Transient Numerical Model To Assess Their Severity During Microchannel Flow Boiling, Md Emadur Rahman, Justin Weibel

CTRC Research Publications

No abstract provided.