The last decade has witnessed a proliferation of legged machines with high power and force densities, as well as a commensurate development of locomotion controllers which achieve impressive empirical demonstrations. Yet, despite showing promise as a means of navigating rough terrain, these machines – and the locomotion controllers which animate them – are still restricted […]
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A large fraction of cell and tissue mass is made of water. The flow of water across the cell surface follows osmotic and hydraulic pressure gradients, and is actively controlled by the cell. This physical fact suggests that the mechanical behavior of cells is intimately connected with cell ionic homeostasis and osmotic control. In this […]
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In nature, organized arrays of elements arise spontaneously from the interactions between their component parts, e.g. reaction-diffusion problems, clustering colloidal particles and granular media, wrinkling surfaces, propagating cracks and flowing liquids. In the wake of biomimicry, I will discuss several strategies aiming to harness mechanical instabilities in flowing liquids, e.g. coiling, droplet formation, digitation, drainage, […] |
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Join us on Monday, January 16 at 4:00 pm in Towne Heilmeier Hall (Room 100) to discuss the impact community engagement has on the Philadelphia community and its long-lasting effect in our daily lives! Panelists include: Chanda Jefferson- Director of Community Engagement & Outreach in the Office of Diversity Equity and Inclusion Emylee Fleshman- Program […] |
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Multifunctional soft materials and interfaces create intriguing new opportunities to enhance performance through programmable and adaptable properties. I will discuss: 1) Novel material architectures of solid-liquid soft composites for electronics, 2) Switchable and programmable materials for adhesion control, and 3) Morphing materials for soft robotics. For soft composites, I will show how liquid metal droplets […] |
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Presentation Abstract: Faced with unlabeled data in deployment that is sampled from a different distribution than that which generated the training data, all bets are off. Moreover, while numerous heuristics have been proposed for this vague setting, it remains unclear when any among them are applicable. One way to render these problems identifiable is to […]
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This is a hybrid event with in-person attendance in Levine 307 and virtual attendance via Zoom. ABSTRACT Philadelphia Robotics Coalition founder, and School District of Philadelphia engineering teacher Michael Johnson discusses how Philadelphia public schools are using the competitive FIRST robotics programs to build STEM equity in our city. With the goal to inspire and prepare the next generation of STEM […] |
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Modern materials contain extraordinary levels of complexity, with components spanning a hierarchy of length scales. Designing materials with complex microstructures and demonstrating unique behaviors would be difficult solely using a reductionist approach to materials development. A powerful utility in this endeavor is using multiple, correlative, and scaffolding computational tools. This talk focused on using an […]
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"Tissue Architecture Driven by Immune Cells" John has developed multiplexed spatial omics techniques and computational tools to decode critical interactions within the multidimensional data (e.g., multiscale models and deep learning algorithms). He applied these tools to understand spatial relationships of cells within the healthy human intestine, inflammation induced cancers (esophageal cancer), and in T cell […] |
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In this work, we present a low-rank tensor approach for approximating solutions to the nonlinear Vlasov equation. Our method takes advantage of the tensor-friendly nature of the differential operators in the Vlasov equation to dynamically and adaptively construct a low-rank solution basis through the discretization of the equation and an SVD-type truncation procedure. We utilize […] |
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Advances in machine learning and reduced-order modeling are rendering construction of digital twins for complex systems possible. We are using these tools to perform scientific discovery, design optimization, and data-informed decision making in diverse applications. In this talk we (1) show how graphs may be used to build robust digital twins in high-consequence engineering settings […]
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Complex, three dimensional (3D) micro/nanostructures in biology provide sophisticated, essential functions in even the most basic forms of life. Compelling opportunities exist for analogous 3D structures in man-made devices, but existing design options are highly constrained by comparatively primitive capabilities in fabrication and growth. Recent advances in mechanical engineering and materials science provide broad access […] |
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Presentation Abstract: Designing autonomous systems that are simultaneously high-performing, adaptive, and provably safe remains an open problem. In this talk, we will argue that in order to meet this goal, new theoretical and algorithmic tools are needed that blend the stability, robustness, and safety guarantees of robust control with the flexibility, adaptability, and performance of […]
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Co-hosted by the Departments of Chemical and Biomolecular Engineering & Bioengineering. New paradigms to harness the immune system are urgently needed to address unmet needs in human health. I am working to understand and engineer glycoimmunology – the roles of sugars, or glycans, in the immune system – to bridge this gap. During my PhD, […] |
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The Department of Bioengineering at the University of Pennsylvania and Dr. Brian Litt are pleased to announce the Doctoral Dissertation Defense of Brittany Scheid. Title: QUANTITATIVE METHODS FOR IMPROVING NEUROSTIMULATION THERAPY IN EPILEPSY Date: January 26th, 2023 Time: 10am Location: Glandt Forum, Singh Center Zoom Link: https://upenn.zoom.us/j/92066299273 The public is welcome to attend. |
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This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance via Zoom. This week’s presenter will be virtual. ABSTRACT Factor graphs have been very successful in providing a lingua franca in which to phrase robotics perception and navigation problems. In this talk I will re-visit some of those successes, also […]
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Dr. Moini’s research is focused on bio-inspired design and development of architected materials using novel additive manufacturing processes and automated robotic technologies for applications in civil and energy infrastructure. His work is motivated by the intellectual challenge of understanding the mechanics of intrinsically brittle engineering materials and the development of ductile and flaw-tolerant responses using […]
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Email jnespos@seas.upenn.edu for the Zoom link. This talk will start by introducing diverse fluid-mechanics research conducted in the Park research group, including complex fluids, electrokinetics, biofluids, transition-to-turbulence, and turbulent flow. I will then focus on two projects at very different flow regimes. For both projects, the modeling, analysis, and computation will be presented along with […] |
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The ability to three-dimensionally pattern semiconducting electronic and optoelectronic materials could provide a transformative approach to creating active electronic devices without the need for a cleanroom or conventional microfabrication facilities. This could enable the generation of active electronics on-the-fly, using only source inks and a portable 3D printer to realize electronics anywhere, anytime, including directly […] |
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Presentation Abstract: Huge strides have made in the widespread adoption of autonomous and human-in-the-loop cyber-physical systems (CPS), partly fueled by dramatic improvements in learning-based techniques. An important aspect of such CPS applications is that they are safety-critical: any undesirable behavior by such systems can cause serious harm to human lives or property. The formal methods […]
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PENN GENETICS SPECIAL SEMINAR | David Sanders, PhD “A network-based blueprint for understanding condensates in health and disease” David W Sanders, PhD Postdoctoral Fellow Chemical and Biological Engineering Princeton University Zoom Link Contact Info: For more information, please contact Sadie Robinson at sarahjr@upenn.edu This is a joint seminar between the Departments of Genetics and Bioengineering |
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The invisibility cloak in Harry Potter and the dreams of invisibility as a superpower are no longer fiction. With the invention of metamaterials, they are theoretically and experimentally possible in real life. Metamaterials — materials that are engineered to have properties that are not found in naturally-occuring materials — allow us to overcome physical limitations. […]
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Many cryptographic protocols will be rendered insecure if sufficiently powerful quantum computers are built. While this remains at least a few decades away, there is another, more immediate, problem: many widely-used security analysis techniques rely on properties of classical information that do not hold in the quantum setting, rendering the security of many schemes unclear […] |
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This is a hybrid event with in-person attendance in Wu and Chen and virtual attendance via Zoom. This week’s panelists will be in-person as well. PANEL DISCUSSION Please join us for a lively panel discussion featuring GRASP Faculty members including Dr. Nadia Figueroa, Dr. Dinesh Jayaraman, and Dr. Marc Miskin. This panel will be moderated by Penn Engineering SEAS […]
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Join P.E.S.T.L.E. for our Zoom Orientation session on Friday, February 3 at 4:00 pm! Please email us at pestle@seas.upenn.edu if you have any questions. |
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