Digital Commons Network^™

Development Of Experimental Test Rig For Internally Geared Screw Compressors, Aleksander Krupa, Ahmed Kovacevic, Matthew Read

International Compressor Engineering Conference

No abstract provided.

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

International High Performance Buildings Conference

No abstract provided.

Assessment Of Short-Term Aquifer Thermal Energy Storage For Energy Management In Greenhouse Horticulture: Modeling And Optimization, Queralt Altes-Buch, Tanguy Robert, Sylvain Quoilin, Vincent Lemort

International High Performance Buildings Conference

No abstract provided.

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

International High Performance Buildings Conference

No abstract provided.

Reflections On Software Failure Analysis, Paschal C. Amusuo, Aishwarya Sharma, Siddharth R. Rao, Abbey Vincent, James C. Davis

Department of Electrical and Computer Engineering Faculty Publications

Failure studies are important in revealing the root causes, behaviors, and life cycle of defects in software systems. These studies either focus on understanding the characteristics of defects in specific classes of systems or the characteristics of a specific type of defect in the systems it manifests in. Failure studies have influenced various software engineering research directions, especially in the area of software evolution, defect detection, and program repair.

In this paper, we reflect on the conduct of failure studies in software engineering. We reviewed a sample of 52 failure study papers. We identified several recurring problems in these studies, …

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. …

Towards Quieter Air-Cooling Systems: Rotor Self-Noise Prediction For Axial Cooling Fans, W. Zhao, S. Wasala, T. Persoons

CTRC Research Publications

No abstract provided.

Simultaneous Measurement Of Temperature And Strain In Electronic Packages Using Multi-Frame Super-Resolution Infrared Thermography And Digital Image Correlation, Sara K. Lyons, Justin Weibel, Suresh V. Garimella

CTRC Research Publications

For microelectronic components and systems, reliability under thermomechanical stress is of critical importance. Experimental characterization of hotspots and temperature gradients, which can lead to deformation in the component, relies on accurate mapping of the surface temperature. One method of non-invasively acquiring this data is through infrared (IR) thermography. However, IR thermography is often limited by the typically low resolution of such cameras. Additionally, the unique surface finish preparations required to infer physical deformation using digital image correlation (DIC) generally interferes with the ability to measure the temperature with IR thermography, which prefers a uniform high emissivity. This work introduces a …

Numerical And Experimental Investigation Of The Cylinder Inlet Temperatures For Different Designs Of The Suction Line Of A Hermetic Reciprocating Compressor, Julian Gräf, Jan Tuhovcak, Ricardo Brancher

International Compressor Engineering Conference

No abstract provided.

The Optimisation Of The Inlet Diameter And The Filter Of The Muffler Of The Hermetic Compressors, Sarper Maraşlı, Semih Gürel, İsmail Yeşilaydın

International Compressor Engineering Conference

No abstract provided.

Effect Of The Contained Refrigerant Mass On The Efficiency And Effectiveness Of Two-Phase Heat Exchangers, Christoph Zainer, Kevin Wimmer, Michael Lang, Raimund Almbauer

International Refrigeration and Air Conditioning Conference

No abstract provided.

How To Measure And Evaluate Refrigerant Cycles – In A Representative, Reproducible Manner? An Experimental Case Study For Water-To-Water Heat Pumps, Stephan Gobel, Christian Vering, Dirk Müller, André Wachau

International Refrigeration and Air Conditioning Conference

No abstract provided.

Air Conditioning In Public Transport Vehicles. Numerical Simulation Of Contaminants Transport And Infection Probability., Jordi Vera, Eugenio Schillaci, Joaquim Rigola, Marc Arolas, Oriol Del Rivero

International Refrigeration and Air Conditioning Conference

No abstract provided.

Additive Manufacturing For Thermal Management Applications: From Experimental Results To Numerical Modeling, Giacomo Favero, Massimiliano Bonesso, Pietro Rebesan, Razvan Dima, Adriano Pepato, Simone Mancin

International Refrigeration and Air Conditioning Conference

No abstract provided.

The Two-Phase Flow Boiling Heat Transfer Coefficient Of R448a Inside Multiport Mini-Channel Tube, Hoang Ngoc Hieu, Nurlaily Agustiarini, Jong-Taek Oh

International Refrigeration and Air Conditioning Conference

No abstract provided.

Numerical Investigation On Effects Of Sub-Cooled & Super-Heating Degree On Performance Of Vrf System With Simultaneous Operation, Been Oh, Dongwon Kim, Hosik Jeong, Yeseul Park, Jiyeon Choi, Byungchae Min, Gyungmin Choi

International Refrigeration and Air Conditioning Conference

No abstract provided.

Experimental Results Of Density Controlled Phase Change Material Capsules For Increased First Hour Rating For Heat Pump Water Heaters, Joseph Rendall, Kashif Nawaz, Will Asher, Jamieson Brechtl, Ahmed Elatar, Kai Li, Cheng-Min Yang, Jian Sun, Tony Gehl

International Refrigeration and Air Conditioning Conference

No abstract provided.

Integrating Wave-Powered Batch Reverse Osmosis With Pressure Retarded Osmosis For Higher Efficiency Desalination Method, David M. Warsinger, Akshay Rao, Abhimanyu Das, Sultan Alnajdi, Ali Naderi, Antonio Esquivel, Alondra Ramos, Cole Heald, Vivek Singh, Ryan Soltis, Kaitlyn Kelsey, Adriana Hisham, Aaron Harp, Bryan Pamintuan, Paige Beck, Matthew Sheridan, John Pacholski, Carolina Bernal Botero

School of Mechanical Engineering Faculty Publications

Overpopulation, intensive industrial water usage and climate change are some of the occurrences that are exacerbating global water scarcity. By 2050, the United Nations predicts that over 6 billion people will be affected by water scarcity. Over 70% of the earth's surface is covered by oceans yet its water remains unusable due to the high salinity of seawater. Reverse Osmosis (RO) is the most common method of desalinating water but is dependent on non-renewable generated electricity to meet its high energy requirements. The majority of the power supplied to desalination plants is generated using emission-heavy fuels. Given the UN’s goal …

Does Peer-To-Peer Writing Tutoring Cause Stress? A Multi-Institutional Rad Study, Matthew Nelson, Kathleen Weaver, Sam Deges, Pornchanok Ruengvirayudh, Savannah Garcia, Sarah Dunn

The Writing Center Journal

Writing center literature often notes the stress and anxiety of students as a special concern for peer writing tutors, and tutor training manuals offer advice for tutors on how to manage student writers’ anxiety and stress in sessions. Few writing center sources, however, examine the stress/anxiety tutors may experience as a result of their work in the writing center, despite increasing interest in emotions and emotional labor in writing centers. This multi-institutional study examines whether peer writing tutors experience increased stress/anxiety while tutoring. Using a mixed-methods approach combining both surveys and physiological data (salivary cortisol levels controlled against days when …

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 …

Multidisciplinary Staffing In A Graduate Writing Center: Making Writing Labor Visible, Valued, And Shared, Nancy Welch, Diana Hackenburg, Leigh Ann Holterman, Judith Keller, Seth Orman, Vanesa Liliana Perillo, Rebecca Stern, Ashley Waldron

The Writing Center Journal

Writing studies and writing center scholars have recently focused much-needed attention on how graduate student writers are taught, mentored, and supported. This scholarship also points to a persistent and stubborn conundrum: Graduate students must write their way into disciplinary belonging, yet most advisors lack a language for, or even awareness of, the specialized practices and tacit expectations shaping written discourse in their fields. While graduate student–serving writing centers help fill this writing-support gap, a reliance on English and humanities graduate students for staff reproduces a status quo in which the genre awareness and rhetorical vocabulary needed to mentor advanced academic …

202210-01, 10/03/2022, I-65 N, Mm 142.5, Boone 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.

Field Test Bed For Evaluating Embedded Vehicle Sensors With Indiana Companies, Ayman Habib, Darcy M. Bullock, Yi-Chun Lin, Raja Manish, Radhika Ravi

JTRP Technical Reports

With the advent of modern sensing technology, mapping products have begun to achieve an unprecedented precision of measurement. Considering their diverse use cases, several factors play a role in what would make the resulting measurements accurate. For light detection and ranging (LiDAR) and photogrammetry-based mapping solutions that implement vehicles outfitted with laser ranging devices, RGB cameras, and global navigation satellite system/inertial navigation system (GNSS/INS) georeferencing units, the quality of the derived mapping products is governed by the combined accuracy of the various sensors. While ranging errors associated with LiDAR systems or the imaging quality of RGB cameras are sensor-dependent and …

Case Studies Of Atmospheric River-Induced Surface Changes In The Arctic, Yonghuai Huang

Geodata Science Technical Reports

Atmospheric river (AR) takes a significant role in transporting warm moisture into the Arctic, which could further enhance the Arctic Amplification. This project aims to examine the surface conditions during selected cases of AR events that are detected by climate time series of Arctic AR index. Mono-level variables related to temperature, pressure, heat fluxes and wind speed of fourteen AR events were analyzed using the MERRA-2 derived Arctic AR index, and results were compared with the detected AR basins. Results of MERRA-2 data show that AR basins detected by both Integrated Water Vapor (IWV) and Integrated water Vapor Transport (IVT) …

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 …

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 …

Defects Analysis And Root Cause Robustness Of Product Labels Of An Acaricide Product In East Africa, Moses Okal Ogodo, Z Ekeocha, S Byrn, K Clase

BIRS Africa Technical Report Papers

This project aimed at investigating online damages of packaging materials generated during production because of imperfectness of production processes. These online damages may lead to upsurge in production cost and/or market returns, causing the company to experience losses and even damage its reputation. Data on online damages were collected for 20ml, 40ml and 100ml labels of an acaricide product for the period between July 2018 and June 2019 and statistically analyzed. Investigation was done on the causes of online damages, then corrective and preventive actions carried out. Analysis of online damages of labels of the three pack sizes revealed a …

Medicines Regulation In West Africa: Current State And Opportu-Nities, Oluwafunmike Sopein-Mann, Z Ekeocha, S Byrn, K Clase

BIRS Africa Technical Report Papers

Ndomondo-Sigonda et al. (2017) observed that there is scarcity of information on human resources (person-nel devoted to regulation of medicines) in the domain of medicines regulation in the sub-Saharan Africa (SSA). The published information on medicines regulation by the National Medicines Regulatory Authorities (NMRAs) in the Economic Community of West African States (ECOWAS) region are no longer current and consistent with the current realities in the NMRAs. In order to reveal this occurrence, show the trends that exist over the years and make appropriate recommendations, data were collected and compared from 2005, 2010 and 2017 research reports on seven regulatory …