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    • MEAM Seminar: “Examples of Elasto-Capillary Mediated Interactions on Thin Elastic Film”

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    I plan to tell two short stories. The first story is about a new drop fluidics that uses a deformable and stretchable elastomeric film as the platform. Such a soft film decorated with magnetic particles can be deformed locally with an external magnetic field. When these deformations are coupled with capillary force, small liquid drops […]

    MEAM Seminar: “Tribosintering of Metal Oxide Nanocrystal Antiwear Additives: Growth, Wear, and Modeling”

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    Room 337, Towne Building 220 South 33rd Street, Philadelphia, PA, United States

    Machinery relies on lubrication to regulate the friction and wear at contacting interfaces. As new lubricants become less viscous to comply with environmental and cost-saving standards, the risk of surface-initiated machine failure grows. We show that metal oxide additives in low-viscosity lubricants will form protective coatings, or tribofilms, in situ at contacting interfaces. Compared to […]

    BE Doctoral Dissertation Defense: “INVESTIGATION OF IMAGE QUALITY SPATIAL DEPENDENCY IN RELATION TO ACQUISITION GEOMETRY IN DIGITAL BREAST TOMOSYNTHESIS” (Chloe Jeongin Choi)

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    JMB Reunion Auditorium 3620 Hamilton Walk, Philadelphia, PA, United States

    The Department of Bioengineering at the University of Pennsylvania and Dr. Andrew Maidment are pleased to announce the Doctoral Dissertation Defense of Chloe Jeongin Choi. Title: INVESTIGATION OF IMAGE QUALITY SPATIAL DEPENDENCY IN RELATION TO ACQUISITION GEOMETRY IN DIGITAL BREAST TOMOSYNTHESIS   Date: Wednesday, July 17, 2024 Time: 10:00am Location: Reunion auditorium, JMB.  

    BE Doctoral Dissertation Defense: “Knowledge-Integrated Learning for AI in Medical Image Analysis” (Yifan Wu)

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    Towne 337

    The Department of Bioengineering at the University of Pennsylvania and Dr. Jim Gee are pleased to announce the Doctoral Dissertation Defense of Yifan Wu. Title: Knowledge-Integrated Learning for AI in Medical Image Analysis Date: July 17, 2024, Wednesday Time: 2:30 PM to 4:40 PM Location: Towne Room 337  Zoom option: https://upenn.zoom.us/j/96378457553?pwd=Zf5UWdZmA87iVawEPnGmvMOOURbNDo.1 The public is welcome to […]

    BE/PICS Joint Seminar: Uma Balakrishnan and Kunal Poorey, Sandia National Laboratories

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    Room 534 A Wing, 3401 Walnut 3401 Walnut Street, Philadelphia, PA, United States

    These talks will be held jointly, with each talk 30 minutes each (1 hour total). Talk 1: "Optimizing Anomaly Detection for GenAI based Digital Twins of Wearable Data" (Uma Balakrishnan) In this presentation, we introduce a methodology that utilizes both real and synthetic datasets (digital twins) to address the uncertainties associated with anomaly detection thresholds […]

    CBE Doctoral Dissertation Defense: “Fabrication of Functional Nanostructured Polymers Based on Thermotropic and Lyotropic Liquid Crystals Derived from Sustainable Resources” (Ruiqi Dong)

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    Towne 337

    Abstract: Nanostructured materials with interconnected nanoscale structures have garnered significant attention due to the ability to precisely regulate molecular transport by tuning molecular-level properties and offering more functional interfaces for interactions compared to bulk systems. Through self-assembly, liquid crystal (LC) mesophases offer a route to achieve nanostructured polymers, a promising alternative to traditional nanostructured inorganic […]

    CBE Doctoral Dissertation Defense: “MEMS-Based Electrochemical Power Sources for Extended Operational Duration of Micro Unmanned Vehicles” (Yanghang Huang)

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    Room 221, Singh Center for Nanotechnology 3205 Walnut Street, Philadelphia, PA, United States

    Abstract: Micro unmanned vehicles, defined as 25-gram to 5-kg in weight, are increasingly being utilized in applications such as search and rescue or agricultural monitoring. Such vehicles are typically powered with lithium-ion batteries. However, vehicle operational efficiency and capability are often compromised by the limited energy density of these batteries, resulting in short operational duration. […]

    MEAM Ph.D. Thesis Defense: “Multi-Robot Coordination and Cooperation via Graph-Based Computation”

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    Multi-robot coordination and cooperation are critical behaviors that improve team performance and enable new tasks in application areas like autonomous construction, agriculture, and extended operation in large unknown regions. This dissertation examines these behaviors in the context of the multi-robot resource allocation problem, where robots must be allocated to regions of demand. In particular, we […]

    ESE PhD Thesis Defense: “Aluminum Scandium Nitride Ultra-Wideband Resonator and Filter Systems”

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    Room 35, Singh Center for Nanotechnology 3205 Walnut Street, Philadelphia, PA, United States

    Aluminum scandium nitride (AlScN), a ternary alloy by doping scandium into aluminum nitride (AlN), has circumspectly gained recognition through the last decade as one of the promised materials in forming the next generation radio frequency (RF) filters and resonators - core components in the wireless telecommunication systems that interconnect today’s world. This, coupled with the […]

    MEAM MSE Thesis Defense: “Algorithmic Design of an Origami Squirrel-Inspired Paw for Quadrupedal Locomotion in Bar-like Terrains”

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    Levine 307 3330 Walnut Street, Philadelphia, PA, United States

    The Dynamic Origami Quadruped (DOQ), an origami quadrupedal robot, has been primarily utilized for hopping and walking on flat ground. However, adapting it walking on bar-like terrains presents significant challenges. Inspired by the Squirrel-inspired Rapid Tenodesis (SQRT) foot which is capable of passively grasping onto curved surfaces during perching, this thesis explores the integration of […]

    ESE Ph.D. Thesis Defense: “Integrating graphene Hall sensors with co-designed silicon circuits for high-throughput magnetic biosensing”

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    Auditorium, LRSM Building 3231 Walnut Street, Philadelphia, PA, United States

    The limitations of silicon electronic devices increasingly constrain the performance of silicon integrated circuits (ICs) and their use in new applications. Next-generation devices with exceptional performance and new functionalities have been realized using two-dimensional materials such as graphene. For example, graphene Hall-effect sensors (GHSs) greatly outperform commercial silicon magnetic-field sensors and could significantly improve the […]