Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Purdue University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 3211 - 3240 of 50079

Full-Text Articles in Entire DC Network

Needs Assessment – National Repository For Nsf Agep Deliverables, Christie Sahley, Megan Sapp-Nelson, Donna Ferullo, Linda Mason, Hanzi Xie Jan 2024

Needs Assessment – National Repository For Nsf Agep Deliverables, Christie Sahley, Megan Sapp-Nelson, Donna Ferullo, Linda Mason, Hanzi Xie

Libraries Faculty and Staff Scholarship and Research

This white paper proposes the establishment of a National Repository for NSF Alliance for Graduate Education and the Professoriate (AGEP) Deliverables to address the critical need for preserving and sharing a wide array of materials generated from the AGEP program. Recognizing the challenges of ephemeral storage solutions and the absence of a unified collection mechanism, the paper underscores the repository's role in promoting justice, equity, diversity, and inclusion (JEDI) research. It emphasizes the importance of accommodating diverse data types, enhancing discoverability, and ensuring long-term access to educational materials, policy documents, and research outcomes. Through a comprehensive approach, the proposed repository …


Critical Race Digital Literacy Rubric For Assessing Mis/Disinformation Literacy Instruction Lesson Plans, Melissa Chomintra Jan 2024

Critical Race Digital Literacy Rubric For Assessing Mis/Disinformation Literacy Instruction Lesson Plans, Melissa Chomintra

Libraries Faculty and Staff Scholarship and Research

While librarians have been at the forefront of the fight against fake news, misinformation, and disinformation, offering invaluable guidance and tools through information literacy instruction, there is a noteworthy gap in the adoption of pedagogical approaches rooted in critical theory within mis/disinformation literacy lesson plans. This suggests there may not be well-defined or standardized frameworks for incorporating these theories into library instruction. The enclosed article explores Critical Race Digital Literacy (CRDL) as a pedagogical approach to mis/disinformation literacy education by proposing a rubric for assessing mis/disinformation lesson plans. The rubric is grounded in the principles of critical race theory, emphasizing …


Business Archives As A Tool For Academic Business Researchers, Annette Bochenek, Ilana Stonebraker Jan 2024

Business Archives As A Tool For Academic Business Researchers, Annette Bochenek, Ilana Stonebraker

Libraries Faculty and Staff Scholarship and Research

This paper examines the structure and collections in business archives in order to create a list of suggestions to better prepare researchers seeking historical business data prior to 1970. Four business archivists were chosen for interviews from a variety of industries. The article shares seven tips gained from the interviews, including getting to know what is housed or not housed in the business archive, looking for archives with museum arms, and considering the importance of legal permission as part of the process for utilizing business archives. The authors also explore how business librarians can better support the work of business …


Tracking Information In The Field: An Assessment Of The Information Needs And Services Of A Field Station Library, Thom Gerrish, Scott Martin Jan 2024

Tracking Information In The Field: An Assessment Of The Information Needs And Services Of A Field Station Library, Thom Gerrish, Scott Martin

Libraries Faculty and Staff Scholarship and Research

This project examines field station libraries, an undescribed type of library associated with terrestrial and marine field stations. Field stations typically support ecology, geology, and related disciplines with housing, laboratories, and research facilities, which may include various levels of library support. In summer 2022, researchers, instructors, and staff at the University of Michigan Biological Station were interviewed about the library resources and services they use while working and teaching at the field station. Library resources were used throughout teaching and research activities, with one-shot instruction and in-person reference support as the primary contact points between the library and the field …


The Mother & Father Hybrid Compression Technology, A Possible Solution For Future Clean Energy Production, Mihail-Dan Staicovici Jan 2024

The Mother & Father Hybrid Compression Technology, A Possible Solution For Future Clean Energy Production, Mihail-Dan Staicovici

International Refrigeration and Air Conditioning Conference

No abstract provided.


Leto: Learning Constrained Visuomotor Policy With Differentiable Trajectory Optimization, Zhengtong Xu, Yu She Jan 2024

Leto: Learning Constrained Visuomotor Policy With Differentiable Trajectory Optimization, Zhengtong Xu, Yu She

School of Industrial Engineering Faculty Publications

This paper introduces LeTO, a method for learning constrained visuomotor policy with differentiable trajectory optimization. Our approach integrates a differentiable optimization layer into the neural network. By formulating the optimization layer as a trajectory optimization problem, we enable the model to end-to-end generate actions in a safe and constraint-controlled fashion without extra modules. Our method allows for the introduction of constraint information during the training process, thereby balancing the training objectives of satisfying constraints, smoothing the trajectories, and minimizing errors with demonstrations. This “gray box” method marries optimization-based safety and interpretability with powerful representational abilities of neural networks. We quantitatively …


Chemical Stability Of Hfo And Hco Refrigerants, Morgan Herried Leehey, Stephen Kujak, Christopher Collins Jan 2024

Chemical Stability Of Hfo And Hco Refrigerants, Morgan Herried Leehey, Stephen Kujak, Christopher Collins

International Refrigeration and Air Conditioning Conference

No abstract provided.


Numerical Investigation Of High Delta-T Sensible Storage Integrated Co2 Heat Pump, Ransisi Huang, Nelson James, Eric Kozubal, Jason Woods Jan 2024

Numerical Investigation Of High Delta-T Sensible Storage Integrated Co2 Heat Pump, Ransisi Huang, Nelson James, Eric Kozubal, Jason Woods

International Refrigeration and Air Conditioning Conference

No abstract provided.


Popular Stem Related Career Choices For Middle School Students, Damilola B. Ayokanmi, Paul Asunda Jan 2024

Popular Stem Related Career Choices For Middle School Students, Damilola B. Ayokanmi, Paul Asunda

Indiana STEM Education Conference

In order to build and sustain student interest in STEM disciplines, it is important to first ascertain the existing trends in their career choices including factors influencing them. Middle school is a pivotal time for both boys and girls as they start forming identities and career choices and can begin to select both elective courses and extra-curricular activities, based on interests (Webb & Rosson, 2013), and yet, these early years are given low priority in integrated STEM education discussions. This study was guided by the following research question, “What are the popular career choices selected by middle school students …


The Nexus Of Ideation And Engagement Through Tower Crane Construction, Abigail Erskine, Hillary Ongoyo Omoze Jan 2024

The Nexus Of Ideation And Engagement Through Tower Crane Construction, Abigail Erskine, Hillary Ongoyo Omoze

Indiana STEM Education Conference

In this study, we investigate how the integration of collaborative design activities during group-based ideation influences middle school students’ engagement in STEM education. Central to this inquiry is a hands-on activity focused on the construction of a tower crane with a suspended bucket. Students developed a plan for the tower crane construction through collaborative sketches and discussion of ideas with teammates. This research brief provides implications for the impact of collaborative ideas generated by students in groups and choices in designs on student engagement.


Integrated Stem Education And Students' 21st Century Skills, Jung Han, Yunjin Lim, Woongbin Park, Kyongson Park Jan 2024

Integrated Stem Education And Students' 21st Century Skills, Jung Han, Yunjin Lim, Woongbin Park, Kyongson Park

Indiana STEM Education Conference

This research investigates the impact of integrated STEM education on students' 21st century competencies, aiming to enhance science and engineering design teaching within a local design-based context. Specifically, the project targets high school students in a rural area and utilizes local contexts, including local rural knowledge and indigenous science knowledge, to facilitate STEM learning. The collaborative effort involves partnering high school environmental science and Technology and Engineering Educators, leveraging their diverse content expertise to teach students collaboratively as a science-technology and engineering teacher pair. Furthermore, university faculty members and industry partners provided support to create a STEM community of practice. …


Implementing Integrated Stem Forensic And Soil Sciences Lab Activities To Promote Interest In Stem Careers, Mariah K. Stollar Awan, Caroline J. Rakowski Jan 2024

Implementing Integrated Stem Forensic And Soil Sciences Lab Activities To Promote Interest In Stem Careers, Mariah K. Stollar Awan, Caroline J. Rakowski

Indiana STEM Education Conference

We implemented forensic and soil science integrated STEM lab activities with 11 middle school youth at a 4-H day camp at Purdue University. STEM perceived knowledge increased overall for participants. However, the pre- and post-assessments did not show a statistically significant difference. More students also indicated STEM career interest after participating. Because this study was exploratory and had a small sample size, more research on these integrated STEM lab activities should be conducted with larger samples.


The Future Of Future City: A Stem Program, Jeffrey A. Nowak, Shelby Werling Jan 2024

The Future Of Future City: A Stem Program, Jeffrey A. Nowak, Shelby Werling

Indiana STEM Education Conference

The idea of integrating science, technology, engineering, and mathematics (STEM) is still an enigma for many educators (Dare et al, 2021). Recent academic standards favor curricula that interweave the principles of integrated STEM into all content areas. Finding a “one size fits all” curriculum is challenging, perhaps even impossible. Future City is a national program that specializes in hands-on cross-curricular STEM education. Students work collaboratively using an engineering and design process to showcase their solutions to citywide sustainability issues. This research brief examines how educators can utilize the Future City program as the cornerstone of their STEM curriculum.


The Impact Of Geospatial Contexts And Out-Of-School Experiences On Students' Stem Identity Formation, Hillary Ongoyo Omoze, Abigail Erskine, Asenath Odondi Jan 2024

The Impact Of Geospatial Contexts And Out-Of-School Experiences On Students' Stem Identity Formation, Hillary Ongoyo Omoze, Abigail Erskine, Asenath Odondi

Indiana STEM Education Conference

STEM teaching faces challenges in varied geospatial contexts (Mulvey et al., 2023), where place and space factors play a significant role. This research brief explores the influence of place and space in shaping students' STEM identities throughout their educational journey, with a specific emphasis on the role of out-of-school experiences in fostering student learning and interest in STEM careers, particularly among middle school students.


Course-Based Undergraduate Research Experiences (Cure) In Engineering Technology, Bill Hutzel, Craig Zywicki, Stephanie M. Gardner Jan 2024

Course-Based Undergraduate Research Experiences (Cure) In Engineering Technology, Bill Hutzel, Craig Zywicki, Stephanie M. Gardner

School of Mechanical Engineering Faculty Publications

Although most universities provide excellent research experiences for outstanding undergraduate students, the number of interested students typically outstrips the supply of faculty and graduate student mentors. Addressing this shortfall is the reason Course-based Undergraduate Research Experiences (CUREs) were created. CUREs face obvious challenges because they operate at a larger scale than the traditional apprentice-based model for undergraduate research, creating resource issues for experimental research that requires equipment, laboratory space, and staff oversight. To help address these hurdles, one university has created a professional development program that provides training, collegial mentoring, and financial support to interested faculty. This paper provides an …


Investigation Of Heat Pump Integrated Thermochemical Energy Storage For Cabin Heating Of Electric Vehicles In Cold Climates, Luis Arturo Vargas-Ochoa, Ulises Gonzalez-Valle, Brian M. Fronk Jan 2024

Investigation Of Heat Pump Integrated Thermochemical Energy Storage For Cabin Heating Of Electric Vehicles In Cold Climates, Luis Arturo Vargas-Ochoa, Ulises Gonzalez-Valle, Brian M. Fronk

International Refrigeration and Air Conditioning Conference

No abstract provided.


Evaluation Of Flow, Heat Transfer, And Phase Change Characteristics In Microchannel Condensers Using Computational Fluid Dynamic (Cfd) Simulations, Katherine J. Asztalos, Muhsin Ameen, Ameya Waikar, David Rowinski Jan 2024

Evaluation Of Flow, Heat Transfer, And Phase Change Characteristics In Microchannel Condensers Using Computational Fluid Dynamic (Cfd) Simulations, Katherine J. Asztalos, Muhsin Ameen, Ameya Waikar, David Rowinski

International Refrigeration and Air Conditioning Conference

No abstract provided.


On The Effectiveness Of Brazed-Type Capillary Tube Suction Line Heat Exchangers Running With Isobutane, Pedro Bruggemann, Gabriel Podgaietsky, Kaitlyn Palermo, Elizabeth Wohlers, Joshua Julius, Anderson Bortoletto, Christian Hermes Jan 2024

On The Effectiveness Of Brazed-Type Capillary Tube Suction Line Heat Exchangers Running With Isobutane, Pedro Bruggemann, Gabriel Podgaietsky, Kaitlyn Palermo, Elizabeth Wohlers, Joshua Julius, Anderson Bortoletto, Christian Hermes

International Refrigeration and Air Conditioning Conference

No abstract provided.


Enhancing Thermodynamic Data Quality For Refrigerant Mixtures: Domain-Informed Anomaly Detection And Removal, Christopher Laughman, Vedang Deshpande, Ankush Chakrabarty, Hongtao Qiao Jan 2024

Enhancing Thermodynamic Data Quality For Refrigerant Mixtures: Domain-Informed Anomaly Detection And Removal, Christopher Laughman, Vedang Deshpande, Ankush Chakrabarty, Hongtao Qiao

International Refrigeration and Air Conditioning Conference

No abstract provided.


Review Of Thermal Management Systems In Electric Vehicles, Mina Michel Kamel Mikhaeel, Wulfer De Bruijn Jan 2024

Review Of Thermal Management Systems In Electric Vehicles, Mina Michel Kamel Mikhaeel, Wulfer De Bruijn

International Refrigeration and Air Conditioning Conference

No abstract provided.


Optimization And Experimental Validation Of Annular Finned Pcm-Hx For A Domestic Hot Water Heater Application, Tanjebul Alam, Jangho Yang, James Tancabel, Jan Muehlbauer, Yunho Hwang, Vikrant Aute Jan 2024

Optimization And Experimental Validation Of Annular Finned Pcm-Hx For A Domestic Hot Water Heater Application, Tanjebul Alam, Jangho Yang, James Tancabel, Jan Muehlbauer, Yunho Hwang, Vikrant Aute

International Refrigeration and Air Conditioning Conference

No abstract provided.


Development And Evaluation Of A Loop Thermosiphon Heat Exchanger As Passive Replacement To Secondary Loop For Low Gwp Heat Pumps, Matthew Nicholas Robinson, Scott Goedeke, Taylor Maxwell, Devin Pellicone, Morton Blatt, Sara Beaini Jan 2024

Development And Evaluation Of A Loop Thermosiphon Heat Exchanger As Passive Replacement To Secondary Loop For Low Gwp Heat Pumps, Matthew Nicholas Robinson, Scott Goedeke, Taylor Maxwell, Devin Pellicone, Morton Blatt, Sara Beaini

International Refrigeration and Air Conditioning Conference

No abstract provided.


Investigation On Condensate Temperature From Cooling Coil, Tyler Stusynski, Jian Yu Jan 2024

Investigation On Condensate Temperature From Cooling Coil, Tyler Stusynski, Jian Yu

International Refrigeration and Air Conditioning Conference

No abstract provided.


Cil Simulation Of A Co2 Booster Rack Commercial Refrigeration System, Daqing Li, Don R. Wiesmann, Suresh Shivashankar Jan 2024

Cil Simulation Of A Co2 Booster Rack Commercial Refrigeration System, Daqing Li, Don R. Wiesmann, Suresh Shivashankar

International Refrigeration and Air Conditioning Conference

No abstract provided.


Advances Concerning Hybrid Compression Refrigeration Research, Mihail-Dan Staicovici Jan 2024

Advances Concerning Hybrid Compression Refrigeration Research, Mihail-Dan Staicovici

International Refrigeration and Air Conditioning Conference

No abstract provided.


Evaluating The Impact Of Electrification On Emissions In Refrigerated Transport, Rohit Dhumane, Matt Stinson, Robert Srichai Jan 2024

Evaluating The Impact Of Electrification On Emissions In Refrigerated Transport, Rohit Dhumane, Matt Stinson, Robert Srichai

International Refrigeration and Air Conditioning Conference

No abstract provided.


Impact Of Temperature Glide On Heat Exchanger Sizing For Low Global Warming Potential Refrigerant Blends, Bobby Dean, Charles Allgood, Andrew Pansulla Jan 2024

Impact Of Temperature Glide On Heat Exchanger Sizing For Low Global Warming Potential Refrigerant Blends, Bobby Dean, Charles Allgood, Andrew Pansulla

International Refrigeration and Air Conditioning Conference

No abstract provided.


Mitigation Of Safety And Environmental Challenges Posed By Low And Ultra-Low Gwp Refrigerants, Praveen Cheekatamarla, Vishaldeep Sharma, Brian Fricke, Samuel Yana Motta Jan 2024

Mitigation Of Safety And Environmental Challenges Posed By Low And Ultra-Low Gwp Refrigerants, Praveen Cheekatamarla, Vishaldeep Sharma, Brian Fricke, Samuel Yana Motta

International Refrigeration and Air Conditioning Conference

No abstract provided.


Integrating Steady State And Dynamic Simulations For The Design Of Heat Pump Vapor Compression Cycle Systems, Joseph Araoz, Moritz Hubel Jan 2024

Integrating Steady State And Dynamic Simulations For The Design Of Heat Pump Vapor Compression Cycle Systems, Joseph Araoz, Moritz Hubel

International Refrigeration and Air Conditioning Conference

No abstract provided.


The Compatibility Studies Of The Building Blocks Of Refrigerant Blends With Lubricants And Components Of The Automotive Ac System Materials Applications, Rusul Alrubaay, Chris Seeton, Ira Saxena Jan 2024

The Compatibility Studies Of The Building Blocks Of Refrigerant Blends With Lubricants And Components Of The Automotive Ac System Materials Applications, Rusul Alrubaay, Chris Seeton, Ira Saxena

International Refrigeration and Air Conditioning Conference

Majority of currently used refrigeration and air conditioning systems utilize high GWP refrigerants such as HFC's. These growing environmental concerns are driving stringent regulations to phase out these high GWP refrigerants and move towards adoption of lower GWP refrigerants. Koura provides a high-performing, economical alternative to the old refrigerants generation and expands alternatives for the automotive aftermarket sector. Innovative refrigerants not only provide the industry with a more economical option, but it also meets the need for a more sustainable, lower global warming potential (GWP) solution as the automotive industry advances to meet current and future U.S. regulations for carbon …