Digital Commons Network^™

Purdue Stars Performance Analysis, Kayla Gurganus, Lynne Dahmen

Institute for a Sustainable Future Documents

This Sustainability Performance Analysis (SPA) report reviews Purdue’s past and present sustainability performance as captured through STARS reporting to understand sustainability actions and to clearly and objectively identify where Purdue excels and how it might improve performance through the next STARS 3.0 submission.

Iros 2023 Workshop Report: Draft Guidelines On Manufacturing Procedures, Test Methods And Reporting For Soft Robotics, Robert Baines, Laura Blumenschein, Jennifer Case, Robert Maccurdy, Gina Olson, Andrew Spielberg

School of Mechanical Engineering Working Papers

No abstract provided.

Securing Healthcare Data: Recent Challenges And Innovations In Hipaa Compliance, Young B. Choi

KAUPA Letters

No abstract provided.

Kaupa Letters: Volume 12, Issue 3, Korean American University Professors Association

KAUPA Letters

No abstract provided.

University Student Organizations: Influence On Leadership Skills In The Workforce, James W. Ebert, Tomicka N. Williams, Aline K. Major, Kristi Pitts, Donna Yohman, Jodi Levit, Thomas Anderson

The Guardianship Journal

The modern-day workforce is ever-changing, and so are the required leadership skill sets for employees to be successful in the workplace. University student organizations (USOs) offer students opportunities to develop their leadership skills in preparation for the workforce. The purpose of this research is to conduct an empirical study that uses distributed leadership theory (DLT) as a lens to explore how USOs influence a student's leadership capacity in the workforce. Exploring the various components of DLT (autonomy, accountability, and leadership capacity) using an empirical research method approach is plausible in understanding the unique approach USOs offer students while simultaneously preparing …

Exploring Modern Data Accessibility Surrounding Police-Involved Killings Of Black Citizens, Chloe Robinson, Jenna L. Borseth

The Guardianship Journal

The need for greater data transparency regarding police-involved killings has been a recurring issue raised by scholars in the field. With limited means of using official policing data, research in the area of police-involved fatalities and other critical policing issues has relied on alternative data sources. While the government has historically failed to instill a mechanism for systematically collecting this information, the development of the Use-of-Force Data Collection in 2019 was an initial step in improving data transparency. The current study seeks to reassess the accessibility and utility of various data sources following the publication of the Use-of-Force Data Collection. …

Designing An Interactive Application To Prevent Runway Incursion: A Systems Engineering Approach, Yixuan Cheng, Dahai Liu, Dennis Vincenzi, Donald S. Metscher

Journal of Aviation Technology and Engineering

Runway incursion is a leading cause of serious incidents and accidents at airports. A common cause of runway incursions is unfamiliarity with the airport layout. To address this, we designed an electronically interactive application intended as a practice tool for pilots during flight preparation. The aim of this application is to improve pilots’ familiarity with airports, ultimately helping to reduce runway incursions, with the goals of being interactive, affordable, easily accessible, and designed for use on mobile devices. We applied a systems engineering approach that adheres to human factors engineering principles to ensure user-friendly design and optimization of the interaction …

Online Media Sentiment Analysis Of Shrimp And Salmon In The United States, Jingjing Tao, Kwamena K. Quagrainie

Department of Agricultural Economics Faculty Publications

There is a growing interest in the U.S. seafood and aquaculture market; however, studies utilizing online information to understand this market are limited. This study employs online media analytics to obtain insights into consumer perceptions and potential demand signals for shrimp and salmon in the U.S. Our results show that platform X is the preferred medium for shrimp and salmon discussions, with shrimp's physical quality and salmon's environmental impact being the two major perception drivers. Additionally, autoregressive modeling is conducted to explore the dynamics of net sentiments. Farmed shrimp and salmon consistently exhibit lower net sentiments compared to their wild …

Farm Resilience, Management Practices, And Producer Sentiment: Segmenting Us Farms Using Machine Learning Algorithms, Margaret Lippsmeyer, Michael Langemeier, James R. Mintert, Nathan Thompson

Journal of Applied Farm Economics

Farm managers possess a broad spectrum of capabilities, ranging from tech-savvy, strategically focused managers to those grappling with operational challenges. Our study examines survey data from 403 US commercial producers in order to identify subsets of producers who differ in terms of resilience, management practices, producer sentiment, and other farm characteristics. Utilizing various supervised and unsupervised machine learning techniques, we uncover key farm characteristics that capture the most pronounced variations in survey responses. We then cluster the dataset using these key variables, maximizing separation between clusters and minimizing differences within clusters using Ward’s hierarchical clustering. Fisher’s exact tests are implemented …

Airport Electrification: Funding, Microgrids, And Sustainability, Irene A. Miller, Amy Rutledge

Journal of Aviation Technology and Engineering

The demand for air travel is increasing, and although the aviation industry only accounts for 2% to 3% of global emissions, it is a challenging industry to decarbonize (Ritchie, 2023). To assist with decreasing greenhouse gas emissions, US airports are transitioning to electric vehicles and electricpowered ground support equipment to reduce the environmental impact on the communities they serve. The Federal Aviation Administration provides grant incentives for airports to purchase zero-emissions vehicles, with the intention to reduce pollution in the communities they serve. Currently, many airports do not have the power generation capability or electrical infrastructure required to support the …

After A Wildfire: Water Safety Considerations Inside Buildings, Andrew J. Whelton, P. Coelho

Resilience to Emergencies and Disasters

No abstract provided.

Prison As A Living Being: ‘Assad’S Syria’ As A Model For The Imprisonment State, Jaber Baker

CLCWeb: Comparative Literature and Culture

The Syrian Assad regime used prisons as tools of domination. As such, prisons had the power not only of active repression but also as places of detention and disappearance for Syrians. The expansion of political detention in Syria over fifty years transformed prison into a living being in the sense that prison became a part not just of Syrians' political life, but also of their social identity. One can recognize it in voices, attitudes, lifestyles, and even written and oral culture. Syrian cities are full of weapons since a large area of the urban space is inhabited by the buildings …

The Absurdity Of Liberation In Moroccan Prison Narratives, Hakima Choukri

CLCWeb: Comparative Literature and Culture

Moroccan prison narratives have been credited with major political and social changes, yet their existential value is equally worth acknowledging. The prison narratives of Aziz Binebine, Mohamed Raiss, Malika Oufkir, and Fatna El Bouih, to mention but a few, are fraught with existentialist patterns that are uncovered upon reading them comparatively. One pattern that persists through these narratives is the absurdity of liberation. Borrowing Camus’ concept of the absurd, this article highlights the absurdity of the post-prison chapter for being nothing more than an extension of the prison episode that makes the impossibility of freedom acutely felt. The absurdity of …

Captivity, Resistance And Political Consciousness In Walid Daqqa’S Prison Literature, Ashjan Ajour

CLCWeb: Comparative Literature and Culture

This article examines the prison literature of the Palestinian intellectual Walid Daqqa who has been serving a life sentence for resistance since 1986 in Israeli prisons. From the depth of his experience he writes about his conceptualization of captivity, colonial violence, the resistance of the Palestinian political prisoners in the Israeli prison system and the construction of Palestinian national imagination in his book Consciousness Molded: or The Re-Identification of Palestinian Torture (2010) Published in Arabic and his first young adults novel The Story of the Oil’s Secret (Ḥikayat Sir al-Zeit) published in 2018 in Arabic. Daqqa has become …

Desktop-Scale Robot Tape Manipulation For Additive Manufacturing, Nahid Tushar, Rencheng Wu, Yu She, Wenchao Zhou, Wan Shou

School of Industrial Engineering Faculty Publications

Advancements in additive manufacturing and robotic automation have enabled diverse fabrication techniques using various materials. However, small-scale tape placement for three-dimensional (3D) printing remains underexplored, with most research focused on large-scale composite manufacturing using carbon fiber prepreg tapes. This work presents an innovative, automated, and cost-effective tape placement system that extends traditional methods beyond carbon fiber prepreg. We developed a customized tape print module (TPM) integrated with a robotic arm, enabling precise and versatile tape placements. Our system supports non-linear toolpaths, complex patterns, and controllable placements on multi-plane surfaces, creating overhangs without support. We demonstrate circuit printing with copper tape …

The Problem Of Reducing The Wave Resistance Of Blunt Bodies At Supersonic And Hypersonic Velocities, Oleksandr M. Shyiko, Olexii A. Оbukhov

Journal of Aviation Technology and Engineering

A new method for reducing the aerodynamic wave drag of blunt bodies in supersonic and hypersonic flows is considered. The method is based on the destruction of the detached head shock wave by placing a family of thin needle elements of a cone-shaped or cylindrical type on the blunt surface. This qualitatively changes the gas-dynamic flow pattern and leads to a new positive quantitative effect. The bow shock wave breaks up into a series of local interacting shock waves of lower intensity, which leads to a decrease in the wave drag of the streamlined body. Variants of hemispherical blunting of …

Trends In Wildlife Strikes To Aircraft In Brazil: Implications For Airport Operators, Flavio A. C. Mendonca, Chenyu Huang, Julius Keller, Carolina Anderson

Journal of Aviation Technology and Engineering

Purpose. Brazilian airport operators face persistent challenges from wildlife hazards to aircraft operations, necessitating the development and implementation or review of existing wildlife hazard management plans. Enhancing airport operators’ ability to allocate resources effectively requires a deeper understanding of past wildlife strikes. This study aimed to provide empirical insights derived from the analyses of wildlife strike and aircraft operations data in Brazil to support accident prevention endeavors.

Design/methodology. The researchers utilized two main datasets: the Brazilian National Wildlife Strike Database and the annual reports on aircraft traffic operations published by the Brazilian Department of Airspace Control. For this study, wildlife …

Imagining Better: Requiring Trust And Imagination In Formal Engineering Education, Sneha Rathi, Jacqueline Handley

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

Teachers and students bear the brunt of enacting K–12 engineering while having little input into engineering practices or values. In this reflective essay, a high school engineering teacher and an engineering education researcher reflect on a class bridging engineering and social justice. We describe the development of politicized trust with each other and students while partnering around shared commitments at a predominately Black school (e.g., Vakil et al., 2016). We also explore challenges in decentering conceptions of engineering derived from depoliticized, exclusionary practice. We demonstrate an urgent need to center educators and students from marginalized identities in formal engineering education.

The Dim Prospects Of A Child Find: Journal Entries Of An Academic, Engineer, And Mother Navigating Special Education Services, Idalis Villanueva Alarcon

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

This provocation is a journaling exercise to uncover the author’s experiences of navigating child find, a process to identify specific learning disability needs for my oldest child. While the Individuals with Disabilities Education Act provides provisions to protect and support children with special needs, private schools do not operate equally. When considering how these inequities in the educational system overlap with precollege engineering education, there is a large gap the literature, positioning a dire need to move disability studies into the precollege engineering education space. The critical authoethnographic journal sheds light on the inequities and educational gaps that are present …

A Continuum Mechanical Model Of The Brain During Closed Head Injury, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Working Papers

Exactly how traumatic axonal injury happens as a result of brief, intense acceleration of the head remains a mystery. The same can be said about traumatic microbleeds observed in MRI scans of people suffering concussions. This paper explores the mechanism of injury in terms of continuum biomechanics. A full-sized viscoelastic model of the human brain is developed that is subjected to impact with the rigid skull after crossing the subarachnoid space in response to brief, intense whole head acceleration, as might occur in falls or in contact sports. The brain is considered a compressible viscoelastic body of approximately uniform density, …

Sound Sensor Networks And Sub/Urban Health: A Transdisciplinary Approach Using The Purdue Campuses As A Living Lab, Kurt Khaustov, Harshitha Pathania, Sophia Victoria Pimentel, Irem Ucar, Linda Ronglin Xu, Santosh Sai Ramesh, Zhengyi Jiang, Elian Inigo Turcal Rieza, Nathan Sing Lee, Ryce Pi, Atandrila Chowdhury, Felipe Saavedra Cardona, Tae Hong Park

Discovery Undergraduate Interdisciplinary Research Internship

Our project investigates environmental soundscapes in West Lafayette and on the Purdue campus - including the Purdue Airport with its newly reopened commercial terminal - treating these sites as a living laboratory. Conducted under the Discovery Undergraduate Interdisciplinary Research Internship (DUIRI) with mentorship from Dr. Tae Hong Park and his Citygram research, the study integrates engineering, data science, and acoustic ecology.

Building on the Soundscaper system, we are developing an interactive sound-mapping interface that allows users to hear synthetic soundscapes representing real-world conditions. We implement a geospatial-audio pipeline that links OpenStreetMap (OSM) data to our Object-Oriented Soundscape Synthesis (OS2) framework. …

Identifying Doxorubicin-Induced Cardiotoxicity Using 4d Echocardiography, Bea O. Cabot, Cortland Johns, Benjamin Zeidler, Anna Webb, Wilhelm Smith, Aasish Karuturi, Craig J. Goergen

Discovery Undergraduate Interdisciplinary Research Internship

Doxorubicin is an effective, commonly used chemotherapeutic drug. However, this drug is accompanied with disadvantages. Specifically, doxorubicin is associated with cardiotoxicity, characterized by left ventricle dysfunction. We hypothesize that 4D ultrasound imaging can reveal cardiac changes associated with doxorubicin-induced cardiotoxicity earlier in disease progression than 2D ultrasound imaging. To test this hypothesis, C57BL/6J mice were separated into treatment or control groups. Intraperitoneal injections were administered weekly for 4 weeks, each dosage equivalent to 4 mg/kg of either doxorubicin (treated) or saline (control). A Vevo3100 high frequency ultrasound system (FUJIFILM VisualSonics) was used to collect 2D and 4D ultrasound images of …

Mapping Pilot Stress And Fatigue During Flight Sessions, Atandrila Chowdhury, Sudip Vhaduri, Julius Keller, Mark Wilson, Debra Henneberry

Discovery Undergraduate Interdisciplinary Research Internship

This study examined physiological and self-reported indicators of stress and fatigue in four student pilots during training flights at Purdue University. Each pilot wore a wrist sensor that recorded heart rate, electrodermal activity, temperature, and acceleration, and completed pre and post-flight ratings of stress, fatigue, and sleep questionnaire. The pilots flew different types of training sessions, providing variation in environmental and flight conditions. All physiological data were cleaned and standardized before analysis. Across pilots, temperature and electrodermal activity generally increased during flight, showing a gradual rise in arousal that can come from several factors, including heat, physical effort, and normal …

Chondrogenic And Chondroprotective Response Of Composite Collagen I/Ii-Hyaluronic Acid Scaffolds Within An Inflammatory Osteoarthritic Environment, Carly M. Battistoni, Javier Munoz Briones, Douglas K. Brubaker, Alyssa Panitch, Julie C. Liu

School of Chemical Engineering Faculty Publications

Inflammation plays a key role in cartilage damage that occurs in osteoarthritis (OA). However, in vitro assessments of tissue-engineered constructs for cartilage regeneration generally do not consider their performance in the presence of inflammation. In this work, the chondrogenic differentiation potential of mesenchymal stromal cells (MSCs) was evaluated in the presence of both chondrogenic factors and inflammatory cytokines, and cartilage formation, degradative response, and inflammatory response were characterized. The addition of cytokines reduced cartilage production, increased cell proliferation, and resulted in an increase in inflammatory markers. Incorporation of hyaluronic acid (HA) had little impact on both collagen fibril microstructure and …

Protecting Our Land, Brendy Diaz

2nd Grade

No abstract provided.

Spread And Pollinate: How Animals Help Plants, Piper Ellis

2nd Grade

No abstract provided.

Pollination, Maddie Epler

2nd Grade

No abstract provided.

Does The Boat Float?, Janae Byman

2nd Grade

No abstract provided.

Pumpkin, What Do You Need?, Christine Kim

Kindergarten

No abstract provided.

What’S The Problem?, Molly Freeman

1st Grade

No abstract provided.