Digital Commons Network^™

Assessing The Travel Demand And Mobility Impacts Of Transformative Transportation Technologies In Indiana, Hao Luo, Ricardo Chahine, Arianna Rambaram, Elizabeth Theresa Rosenzweig, Konstantina Gkritza, Hua Cai

JTRP Technical Reports

The rapid development of transformative transportation technologies, such as bike-sharing, shared e-scooters, and ride-hailing systems, is reshaping the transportation landscape. These transformative transportation technologies have the potential to significantly change travel behavior and travel demand and affect transportation agencies’ planning, operations, and decision-making. The objective of this project is to develop a framework and models to quantify the potential travel demand and mobility impacts of transformative transportation technologies in Indiana cities. This project analyzed historical system usage data and conducted survey studies to evaluate the availability and use of transformative transportation technologies in select Indiana cities. The project also proposed …

Calculation Of Internal Flow In A Compressor With Valve Motion, Shinichi Kawabata, Ryohei Deguchi, Hideki Matsuura

International Compressor Engineering Conference

No abstract provided.

Performance Analysis Of An R410a Air-To-Water Heat Pump For Different Fan And Compressor Speed Combinations, Ignacio Ortega, Jaime Sieres, Fernando Cerdeira, José M. Santos, Estrella Álvarez

International Refrigeration and Air Conditioning Conference

No abstract provided.

Performance Assessment Of High-Temperature Heat Pump In An Integrated Energy System, Ganesan P, Signe Truyen Ryssdal, Trygve M. Eikevik, Ruzhu Wang, Bin Hu

International Refrigeration and Air Conditioning Conference

No abstract provided.

Reflecting On Recurring Failures In Iot Development, Dharun Anandayuvaraj, James C. Davis

Department of Electrical and Computer Engineering Faculty Publications

As IoT systems are given more responsibility and autonomy, they offer greater benefits, but also carry greater risks. We believe this trend invigorates an old challenge of software engineering: how to develop high-risk software-intensive systems safely and securely under market pressures? As a first step, we conducted a systematic analysis of recent IoT failures to identify engineering challenges. We collected and analyzed 22 news reports and studied the sources, impacts, and repair strategies of failures in IoT systems. We observed failure trends both within and across application domains. We also observed that failure themes have persisted over time. To alleviate …

Modeling A Spool Compressor Using A Coupled Fluid And Solid Solver With Cut-Cell Based Cfd Methodology With Adaptive Mesh Refinement, Ameya Waikar, David Rowinski, Greg Kemp, Joe Orosz, Craig Bradshaw

International Compressor Engineering Conference

No abstract provided.

Training Neural Networks To Predict The Energy Efficiency Of Screw Rotor Profiles, Sumit Patil, Sathiskumar Ponnusami, Ahmed Kovacevic, Neeraj Asati

International Compressor Engineering Conference

No abstract provided.

Building Energy Model Calibration With Functional Inputs And Outputs For Performance Monitoring, Thomas Cerbelaud, Bruno Duplessis, Pascal Stabat, Riad Ziour

International High Performance Buildings Conference

No abstract provided.

Mapping Religious Sites In China: A Research Note, Jackie Henke, Fenggang Yang

Department of Sociology Faculty Publications

Drawing from visual studies scholarship, we highlight current and persistent critiques of sociological visualization, note recent developments in visualization tools for sociologists, and propose how sociologists can be reflective about their visualization choices. As a case study, we outline the visualization development and selection process in our project of mapping Chinese religious venues. We explain the visualization challenges we faced, the visual biases we hoped to manage, the strengths and limitations of various visualization methods we identified, and how we selected visualizations for varying research queries. In addition, we provide a list of considerations for fellow sociologists working to visualize …

Evaluation Of A Graphene Enhanced Photocatalytic Oxidation Device, Paul Gerard Hoertz, Stephen Kujak, Kathleen Owen

International High Performance Buildings Conference

No abstract provided.

A Figure Of Merit To Characterize The Efficacy Of Evaporation From Porous Microstructured Surfaces, M. Bongarala, H. Hu, J.A. Weibel, S.V. Garimella

CTRC Research Publications

Evaporation from porous structured surfaces is encountered in a variety of applications including electronics cooling, desalination, and solar energy generation. Of major interest in the design of thermal systems for such applications is a prediction of the heat and mass transfer rates during evaporation from these surfaces. The present study develops a figure of merit (FOM) that characterizes the efficacy of evaporative heat transfer from microstructured surfaces. Geometric quantities such as the contact line length per unit area, porosity, and contact angle that are independent of details of the surface structure are utilized to develop the FOM, allowing for flexibility …

Smart Low-Cost Thermal Imaging Acquisition Towards Personal Comfort Prediction, Ati Soleimanijavid, Iason Konstantzos

International High Performance Buildings Conference

No abstract provided.

Sok: Analysis Of Software Supply Chain Security By Establishing Secure Design Properties, Chinenye Okafor, Taylor R. Schorlemmer, Santiao Torres-Arias, James C. Davis

Department of Electrical and Computer Engineering Faculty Publications

This paper systematizes knowledge about secure software supply chain patterns. It identifies four stages of a software supply chain attack and proposes three security properties crucial for a secured supply chain: transparency, validity, and separation. The paper describes current security approaches and maps them to the proposed security properties, including research ideas and case studies of supply chains in practice. It discusses the strengths and weaknesses of current approaches relative to known attacks and details the various security frameworks put out to ensure the security of the software supply chain. Finally, the paper highlights potential gaps in actor and operation-centered …

An Empirical Study On The Impact Of Deep Parameters On Mobile App Energy Usage, Qiang Xu, James C. Davis, Y Charlie Hu, Abhilash Jindal

Department of Electrical and Computer Engineering Faculty Publications

Improving software performance through configuration parameter tuning is a common activity during software maintenance. Beyond traditional performance metrics like latency, mobile app developers are interested in reducing app energy usage. Some mobile apps have centralized locations for parameter tuning, similar to databases and operating systems, but it is common for mobile apps to have hundreds of parameters scattered around the source code. The correlation between these "deep" parameters and app energy usage is unclear. Researchers have studied the energy effects of deep parameters in specific modules, but we lack a systematic understanding of the energy impact of mobile deep parameters. …

Modeling The Formation Of Efflorescence And Subflorescence Caused By Salt Solution Evaporation From Porous Media, Rishav Roy, Justin Weibel, Suresh V. Garimella

CTRC Research Publications

Understanding the dynamics of precipitation and crystallization as salt solutions evaporate from porous media is of importance in the context of preservation of historical monuments, understanding soil nutrient content, and design of porous evaporators for use in distillation plants. Transient advection-diffusion equations govern the salt mass fraction profile of the solution inside the porous medium. These governing equations are solved to obtain the solute mass fraction profile within the porous medium as well as the effloresced salt crust. Further accounting for precipitation allows a study of the formation and growth of efflorescence and subflorescence. Crystallization experiments are performed by allowing …

Ils 490: Diplomacy Lab: Strategies For Identifying Mis/Disinformation Course Syllabus, Bethany S. Mcgowan, Matthew Hannah

Libraries Faculty and Staff Creative Materials

No abstract provided.

Creating Awareness Of Autonomous Drones In Stem Career Development, Wei Zakharov

Libraries Faculty and Staff Scholarship and Research

Drones are a flexible and rapidly advancing technology. The drone’s development can benefit from low power artificial intelligence and autonomous systems. Purdue UAS Research and Test Facility (PURT) is hosting “2022 IEEE Autonomous Unmanned Aerial Vehicles (UAV) Competition” at the indoor Purdue Airport Hangar on April 8&9, 2022. The goal is to accelerate computer vision / artificial intelligence so that it can run on the embedded computers in UAV.

In the session, participants will meet Purdue faculty and students. PURT program is currently reaching out to high schools in Indiana for STEM career exposure. High school teachers or education program …

Put Your Money Where Your Mouth Is: A Values-Based Evaluation Tool For Collections Decisions, Heather A. Howard, Dave Zwicky, Danielle Walker

Libraries Faculty and Staff Scholarship and Research

As libraries and communities consider institutional values and ethical standards, there is a need to scrutinize how those values and standards connect with collections decisions. An existing body of literature about the contents of the collections exists, with respect to issues like decolonization and open access, but little about the business relationships libraries maintain in order to acquire these collections. In this paper, librarians from Purdue University take a critical approach to identifying the values of their institution at multiple levels, including a newly released Libraries strategic plan, to create a values-based evaluation tool for future collection assessment.

Experimental Investigation Of R1336mzz(E) In A High-Temperature Heat Pump, Cordin Arpagaus, Sidharth Paranjape, Leon P. M. Brendel, Luke D. Simoni, Konstantinos Kontomaris, Stefan S. Bertsch

International Refrigeration and Air Conditioning Conference

No abstract provided.

Thermodynamic Evaluation Of A Magnetic Air Conditioner, Guilherme Peixer, Maria Cláudia Silva, Anderson Lorenzoni, Gislaine Hoffmann, Diego Dos Santos, Sergio Dutra, Hígor Teza, Elias Pagnan, Bernardo Vieira, Alan Nakashima, Jaime Lozano, Jader R. Barbosa Jr.

International Refrigeration and Air Conditioning Conference

No abstract provided.

Booster Ejector Enhanced Vapor Compression Cycle Performance For Industrial Refrigerating Facilities, Olexiy Buyadgie, Oleksii Drakhnia, Dmytro Buyadgie

International Refrigeration and Air Conditioning Conference

No abstract provided.

Meet The Tutors: Student Expectations, Tutor Perspectives, And Some Recommendations For Sharing Information About Tutors Online, Jessica Robbins, Jaclyn M. Wells

The Writing Center Journal

This article presents findings from an IRB-approved study about tutors’ online information on writing center websites, scheduling systems, and social media. The study used surveys to investigate students’ responses to tutors’ online information and focus groups to investigate tutors’ rationale for the information they shared. While many researchers have studied how writing centers are presented online, little research considers how tutors are represented. The authors argue that such representation merits attention, as tutor profiles can affect students’ comfort with the writing center staff and their microdecisions about who to see and how to interact with them (Salem, 2016). The authors …

202212-02, 12/22/2022, I-465 Ol, Mm 39, Marion Co., Myles W. Overall, Rahul Suryakant Sakhare, Justin Mukai, Jairaj Desai, Deborah Horton, Darcy M. Bullock

After-Action Reports for Traffic Incident Management (TIM)

No abstract provided.

Design Of Educational Material And Public Awareness Campaigns For Improving Work Zone Driver Safety, Ricardo Chahine, Prince Adu Gyamfi, Nandhesh Subash, Wonsang Cho, Krista O. Kelley, Stacey L. Connaughton, Konstantina Gkritza

JTRP Technical Reports

This project aims to help improve work zone driver safety in Indiana through driver education and public awareness campaigns. The project focused on two specific objectives: (1) to design a public awareness campaign to increase drivers’ knowledge and influence positive attitudes about work zone driver safety practices; and (2) to prepare educational materials to be incorporated into driver’s education or training curriculum prior to taking driving test and getting a driver’s license issued. The campaign was informed by formative research, conducted using a survey to assess public knowledge and attitudes. Based on these results, campaign messages were designed. The team …

Front Matter

The Writing Center Journal

Front matter for Writing Center Journal 40.3.

Democracy And The Media: The Year In C-Span Archives Research, Volume 7, Robert X. Browning

The Year in C-SPAN Archives Research

Volume 7 of The Year in C-SPAN Archives Research series focuses on the relationship between democracy and the media. Using the extensive collection of the C-SPAN Video Library, chapters cover Trump political rallies, congressional references of late-night comedy, responses of African American congresswomen to COVID-19 bills, and congressional attacks on the media through floor speeches in the House of Representatives and Senate.

The C-SPAN Video Library is unique because there is no other research collection that is based on video research of contemporary politics. Methodologically distinctive, much of the research uses new techniques to analyze video, text, and spoken words …

The Impact Of The Presidency Of Donald Trump On American Jewry And Israel, Steven F. Windmueller

The Jewish Role in American Life: An Annual Review

The Trump presidency has resulted in a fundamentally disruptive moment in this nation’s political culture. Not only were there different policy options and directions, but the cultural artifacts of politics changed because of how this president dramatically challenged the existing norms of political behavior and action. As we have shifted from a period of American liberalism to a time of political populism, deep fissures are dividing Americans in general and Jews in particular.

The Impact of the Presidency of Donald Trump on American Jewry and Israel unpacks President Donald Trump’s distinctive and unique relationship with the American Jewish community and …

Undersea Cables: The Ultimate Geopolitical Chokepoint, Bert Chapman

FORCES Initiative: Strategy, Security, and Social Systems

This work provides historical and contemporary overviews of this critical geopolitical problem, describes the policy actors addressing this in the U.S. and selected other countries, and provides maps and information on many undersea cable work routes. These cables are chokepoints with one dictionary defining chokepoints as “a strategic narrow route providing passage through or to another region."

Improving Pharmacovigilliance Quality Management System In The Pharmacy And Poisions Board Of Kenya, Eric Apiyo, Z Ekeocha, S Byrn, K Clase

BIRS Africa Technical Report Papers

The purpose of this study was to explore ways of improving the pharmacovigilance quality system employed by the Pharmacy and Poisons Board of Kenya. The Pharmacy and Poisons Board of Kenya employs a hybrid system of pharmacovigilance that utilizes an online system of reporting pharmacovigilance incidences and a physical system, where a yellow book is physically filled by the healthcare worker and sent to the Pharmacy and Poisons Board for onward processing. This system, even though it has been relatively effective compared to other systems employed in Africa, has one major flaw. It is a slow and delayed system that …

The Impact Of Mentoring As A Gmp Capability Building Tool In The Pharmaceutical Manufacturing Industry In Nigeria, Monica Agu, Z Ekeocha, S Byrn, K Clase

BIRS Africa Technical Report Papers

Good Manufacturing Practices (GMP), a component of Pharmaceutical Quality Systems, is aimed primarily at managing and minimizing the risks inherent in pharmaceutical manufacture to ensure the quality, safety and efficacy of products. Provision of adequate number of personnel with the necessary qualifications/practical experience and their continuous training and evaluation of effectiveness of the training is the responsibility of the manufacturer. (World Health Organization [WHO], 2014; International Organization for Standardization [ISO], 2015). The classroom method of training that has been used for GMP capacity building in the pharmaceutical manufacturing industry in Nigeria over the years, delivered by experts from stringently regulated …