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Articles 1231 - 1260 of 25420
Full-Text Articles in Entire DC Network
Exploring Light, Grace Pohodich
Will It Fly?, Elizabeth Grochocinski
Pushes And Pulls, Gabby Duke
Animals Helping Plants, Lilly Cadwallader
Seed Dispersal, Emma Cox
Changing Of The Leaves, Eden Jasicki
Pushing And Pulling, Mikkel Cunningham
How Do We Stay Safe In Severe Weather?, Colleen Leonard
How Do We Stay Safe In Severe Weather?, Colleen Leonard
Kindergarten
No abstract provided.
Hibernation And Migration, Brynne Eide
Earth And The Solar System Positions, Addison Pantell
Vilp: Imitation Learning With Latent Video Planning, Zhengtong Xu, Qiang Qiu, Yu She
Vilp: Imitation Learning With Latent Video Planning, Zhengtong Xu, Qiang Qiu, Yu She
School of Industrial Engineering Faculty Publications
In the era of generative AI, integrating video generation models into robotics opens new possibilities for the general-purpose robot agent. This letter introduces imitation learning with latent video planning (VILP). We propose a latent video diffusion model to generate predictive robot videos that adhere to temporal consistency to a good degree. Our method is able to generate highly time-aligned videos from multiple views, which is crucial for robot policy learning. Our video generation model is highly time-efficient. For example, it can generate videos from two distinct perspectives, each consisting of six frames with a resolution of 96 × 160 pixels, …
Embrace The Journey: Exploring Induction Experiences Of Teachers In Ohio Independent Stem Schools, Laura Sass
Embrace The Journey: Exploring Induction Experiences Of Teachers In Ohio Independent Stem Schools, Laura Sass
Indiana STEM Education Conference
The beginning years of a new teacher are a critical period. This study investigated perceptions of induction activities of new teachers in Ohio Independent STEM schools. STEM-based pedagogies such as problem-based learning and inquiry are core strategies in STEM schools but can be new for beginning teachers. Through a Q-sort, thirteen participants from three Independent STEM Schools ranked statements on a +5 to -5 scale of agreement. This along with a post-sort survey resulted in themes. Positive school culture and colleague collaboration and the impact of the mentoring were found to be the most impactful. This research aligns with literature …
Unit: Data Efficient Tactile Representation With Generalization To Unseen Objects, Zhengtong Xu, Raghava Uppuluri, Xinwei Zhang, Cael Fitch, Philip Glen Crandall, Wan Shou, Dongyi Wang, Yu She
Unit: Data Efficient Tactile Representation With Generalization To Unseen Objects, Zhengtong Xu, Raghava Uppuluri, Xinwei Zhang, Cael Fitch, Philip Glen Crandall, Wan Shou, Dongyi Wang, Yu She
School of Industrial Engineering Faculty Publications
UniT is an approach to tactile representation learning, using VQGAN to learn a compact latent space and serve as the tactile representation. It uses tactile images obtained from a single simple object to train the representation with generalizability. This tactile representation can be zero-shot transferred to various downstream tasks, including perception tasks and manipulation policy learning. Our benchmarkings on in-hand 3D pose and 6D pose estimation tasks and a tactile classification task show that UniT outperforms existing visual and tactile representation learning methods. Additionally, UniT's effectiveness in policy learning is demonstrated across three real-world tasks involving diverse manipulated objects and …
Experimental Comparison Of Cycle Modifications And Ejector Control Methods Using Variable Geometry And Co2 Pump In A Multi-Evaporator Transcritical Co2 Refrigeration System, Gabriele Toffoletti, Riley Barta, Steven M. Grajales, Haotian Liu, Davide Ziviani, Eckhard A. Groll
Experimental Comparison Of Cycle Modifications And Ejector Control Methods Using Variable Geometry And Co2 Pump In A Multi-Evaporator Transcritical Co2 Refrigeration System, Gabriele Toffoletti, Riley Barta, Steven M. Grajales, Haotian Liu, Davide Ziviani, Eckhard A. Groll
School of Mechanical Engineering Faculty Publications
To reduce the direct global warming impact of refrigerants in HVAC&R applications, low-global warming potential (GWP) refrigerants, including natural refrigerants, have been extensively investigated as alternatives to hydrofluorocarbon (HFC) refrigerants. Among the natural refrigerants, Carbon Dioxide (CO2) offers several advantages, such as excellent transport and thermo-physical properties, being neither toxic nor flammable, and having a low price and high availability around the world. However, the high critical pressure and low critical temperature of CO2 often lead to transcritical operation, resulting in lower efficiency due to the additional compressor power necessary to achieve transcritical operation relative to subcritical HFC cycles. Therefore, …
Development Of High-Durability Manufactured Sand Concrete For Salt Freeze–Thaw Environments, Hao Wang, Yongzhi Guo, Kunmiao Xu, Baolin Guo, Yi Wang, Qinfei Li
Development Of High-Durability Manufactured Sand Concrete For Salt Freeze–Thaw Environments, Hao Wang, Yongzhi Guo, Kunmiao Xu, Baolin Guo, Yi Wang, Qinfei Li
International Conference on Durability of Concrete Structures
The Beijing–Taipei Expressway (Jing-Tai Expressway) of China reconstruction and expansion project (Qihe–Jinan section) features a 12-lane dual carriageway with high traffic volume. To ensure safe winter operation, deicing salt is heavily applied, necessitating enhanced salt freeze–thaw resistance of roadside crash barriers. In this project, manufactured sand was used as the fine aggregate in structural concrete. A systematic investigation was conducted to evaluate the effects of stone powder content, air content, air-void spacing factor, and aggregate properties on concrete performance, including salt freeze–thaw resistance, rapid freeze–thaw durability, and compressive strength. The results revealed that non-air-entrained manufactured sand concrete exhibited extremely poor …
Trendwatching: Spring 2025, Jonathon Day, Ailin Fei, Filza Armadita, Gurpreet Kour, Kuang Xin, Roya Alavipour
Trendwatching: Spring 2025, Jonathon Day, Ailin Fei, Filza Armadita, Gurpreet Kour, Kuang Xin, Roya Alavipour
Tourism Insights
No abstract provided.
Range And Accuracy And Of In-Plane Anisotropic Thermal Conductivity Measurement Using The Laser-Based Angstrom Method, Aalok U. Gaitonde, Justin A. Weibel, Amy M. Marconnet
Range And Accuracy And Of In-Plane Anisotropic Thermal Conductivity Measurement Using The Laser-Based Angstrom Method, Aalok U. Gaitonde, Justin A. Weibel, Amy M. Marconnet
CTRC Research Publications
High heat fluxes in electronic devices must be effectively dissipated to prevent local hotspots, which are critical for long-term device reliability. In particular, advanced semiconductor packaging trends toward thin form factor products increase the need for understanding and improving in-plane conduction heat spreading in anisotropic materials. The 2D laser-based Ångstrom method, an extension of traditional Ångstrom and lock-in thermography techniques, measures in-plane thermal properties of anisotropic sheet-like materials. This method uses non-contact infrared temperature mapping to measure the thermal response to periodic laser heating at the center of a suspended sample. The spatiotemporal temperature data are analyzed via an inverse …
Animal Inventions, Sarah Carroll
Patterns Of The Sun, Moon, And Seasons, Emily Koone
Shaping Engineering Technology Students’ Perceptions Of Manufacturing Through Experiential Learning In A Flipped Classroom – A Case Study, Rustin Webster
Shaping Engineering Technology Students’ Perceptions Of Manufacturing Through Experiential Learning In A Flipped Classroom – A Case Study, Rustin Webster
School of Engineering Technology Faculty Publications
This study examined how an introductory, survey-based manufacturing systems and processes course – which uniquely integrated a flipped classroom structure and multiple experiential learning elements – influenced engineering technology (ET) students’ perceptions of careers, workforce expectations, workplace dynamics, and essential industry skills within manufacturing. Pooled qualitative data from 52 ET student’s pre- and post-course reflection surveys, administered across four cohorts, were analyzed using topic modeling, sentiment analysis, comparative assessments, keyword frequency analysis, and/or impact assessment. The data offered valuable insights into students understanding of essential job skills, definitions of a good job, and perceptions of factory work. Before the course, …
The Current State Of Dimensioning And Tolerancing Pedagogy In United States Post-Secondary Engineering And Engineering Technology Programs, Jaime Berez, Rustin Webster, Rudy Ottway
The Current State Of Dimensioning And Tolerancing Pedagogy In United States Post-Secondary Engineering And Engineering Technology Programs, Jaime Berez, Rustin Webster, Rudy Ottway
School of Engineering Technology Faculty Publications
Dimensioning and tolerancing (D&T) is understood to be a crucial element of the engineering product lifecycle and has been documented as an important skill for various careers, e.g., engineering, design, manufacturing, and metrology. Even so, there is a widely perceived skills gap in today's workforce. In response to this perceived misalignment between employer expectations and student preparation, a survey of post-secondary engineering and engineering technology (ET) degree programs in the United States was conducted to quantitatively characterize the current state of D&T pedagogy. Respondents (n = 67) who identified as being the instructor-of-record for a course(s) that required students to …
Matter & Change, Carlie Cox
Indiana Stem Teachers’ Perceptions Of The Shift From In-Person To Virtual Training During The Covid-19 Pandemic, Steve Heinold
Indiana Stem Teachers’ Perceptions Of The Shift From In-Person To Virtual Training During The Covid-19 Pandemic, Steve Heinold
Indiana STEM Education Conference
The COVID-19 pandemic brought uncertainty to Indiana teachers in 2020. School closings caused disruptions to teachers’ classroom settings, ongoing training, and social and mental well-being (Pozo-Rico et al., 2020). Indiana GEAR UP’s commitment to teacher professional development for STEM educators led to a shift from their in-person summer teacher training sessions to virtual, just months after the school shutdowns in spring 2020. Participant evaluations showed that teachers appreciated the virtual training options and were able to learn new strategies to apply to their new virtual learning spaces. The online training sessions also had drawbacks. This research brief describes recommendations to …
Spatio-Visual Reasoning And Teamwork Through Hands-On Stem Construction Activities, Comfort Temitope Aje, Maria Eloisa C. Nuguid, Melihan Ünlü, Humphrey Chinenye Ochulor
Spatio-Visual Reasoning And Teamwork Through Hands-On Stem Construction Activities, Comfort Temitope Aje, Maria Eloisa C. Nuguid, Melihan Ünlü, Humphrey Chinenye Ochulor
Indiana STEM Education Conference
This study examined a STEM activity in which students in grades K-6 designed and built a model of Snoopy’s doghouse with considerations for constraints, teamwork, and iterative design. By combining spatial reasoning with imagination and visualization, students collaborated to create 3-D structures from 2-D plans, demonstrating enhanced spatial visualization and the ability to connect geometry to a tangible engineering task. The findings highlight the value of spatio-visual design activities in promoting skills like spatial reasoning, critical thinking, and problem-solving.
Light!, Daniela Manzanero
Parents And Offspring Comparison, Elise Louk
Cultivating Ethical Data Stewardship For Undergraduate Research: A Framework And Toolkit Duo, Wei Zakharov, Senay Purzer, Carla Zoltowski
Cultivating Ethical Data Stewardship For Undergraduate Research: A Framework And Toolkit Duo, Wei Zakharov, Senay Purzer, Carla Zoltowski
Libraries Faculty and Staff Scholarship and Research
Data drives nearly every aspect of research today, from the earliest stages of problem definition to the final dissemination of results. Undergraduate students—often at the beginning of their research journeys—are increasingly working with complex, data-intensive projects. Yet many enter these environments without sufficient training in how to manage, share, and use data responsibly. They may know how to run code or analyze a dataset, but questions of ethics, reproducibility, preservation, and stewardship are rarely an explicit part of this preparation. To address this gap, our interdisciplinary research team at Purdue University launched a multi-year, NSF-funded project entitled Prioritizing Data Life …
Vibtac: A High-Resolution High-Bandwidth Tactile Sensing Finger For Multi-Modal Perception In Robotic Manipulation, Sheeraz Athar, Xinwei Zhang, Jun Ueda, Ye Zhao, Yu She
Vibtac: A High-Resolution High-Bandwidth Tactile Sensing Finger For Multi-Modal Perception In Robotic Manipulation, Sheeraz Athar, Xinwei Zhang, Jun Ueda, Ye Zhao, Yu She
School of Industrial Engineering Faculty Publications
Tactile sensing is pivotal for enhancing robot manipulation abilities by providing crucial feedback for localized information. However, existing sensors often lack the necessary resolution and bandwidth required for intricate tasks. To address this gap, we introduce VibTac, a novel multi-modal tactile sensing finger designed to offer high-resolution and high-bandwidth tactile sensing simultaneously. VibTac seamlessly integrates vision-based and vibration-based tactile sensing modes to achieve high-resolution and high-bandwidth tactile sensing respectively, leveraging a streamlined human-inspired design for versatility in tasks. This paper outlines the key design elements of VibTac and its fabrication methods, highlighting the significance of the Elastomer Gel Pad (EGP) …
Leveraging Undergraduate Expertise For Effective Stem Instruction: Insights From A Forensic Science Teaching Partnership, Swagata Sarkar, Hui-Hui Wang, Austin R. Jenkins, Mariah K. Stollar
Leveraging Undergraduate Expertise For Effective Stem Instruction: Insights From A Forensic Science Teaching Partnership, Swagata Sarkar, Hui-Hui Wang, Austin R. Jenkins, Mariah K. Stollar
Indiana STEM Education Conference
Although integrated science, technology, engineering, and mathematics (STEM) instruction has been cited as a viable instructional approach to increasing the number of students interested and prepared to enter the STEM workforce, teacher content knowledge can be a limiting factor to effective implementation (Ejiwale, 2013). To address this limitation, college STEM majors can use their content expertise to support the development and implementation of integrated STEM experiences for K-12 students (Ferrara et al., 2018). This research brief reports on a university-high school partnership where undergraduate students in a university forensic science club created and implemented integrated STEM lessons in a local …
Leveraging Apprenticeship In Place-Based Education To Advance Integrated Stem Learning, Brent Farrell
Leveraging Apprenticeship In Place-Based Education To Advance Integrated Stem Learning, Brent Farrell
Indiana STEM Education Conference
Place-based education (PBE), which leverages local knowledge and community resources, is increasingly recognized as an effective approach to fostering STEM learning, especially in rural settings (Avery, 2013). Students from underrepresented rural populations could provide important contributions to the future STEM workforce if attracted to the disciplines during their K-12 education. Integrating real-world experiences with local industry expertise into the curriculum makes STEM more relevant and fosters critical thinking and problem-solving skills essential for future STEM careers. This research brief proposes a study on the positive effects of cognitive apprenticeship, grounded in rural PBE contexts, creating potential for increased efficacy for …